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Abrasives are indispensable tools in various industries, facilitating the shaping, finishing, and polishing of materials through grinding, cutting, or sanding processes. Among the diverse types of abrasives, understanding the nuances between bonded, coated, and non-woven abrasives is essential for selecting the most suitable tool for specific applications.

Bonded Abrasives

Bonded abrasives, recognized for their durability and versatility, consist of abrasive grains bound together by materials such as vitrified clay, resin, or rubber. This bonding material ensures controlled material removal in a variety of applications.

Types of Bonded Abrasives

1. Grinding Wheels:Circular wheels with embedded abrasive grains, grinding wheels are instrumental in precision grinding operations common in metal fabrication and manufacturing.
2. Mounted Points:Small, specialized abrasive tools mounted on spindles, these are ideal for intricate grinding operations, particularly in hard-to-reach areas.
3. Segments: Blocks of abrasive material held together by a bonding agent, segments are frequently used in surface grinding applications to efficiently remove material from large surfaces.
4. Cut-Off Wheels:These are thin, rigid wheels designed for cutting various materials, making them essential in metalworking and construction.

How Bonded Abrasives Are Made

Manufacturing bonded abrasives involves mixing abrasive grains with bonding agents, shaping the mixture into the desired form (such as wheels or segments), and then curing or baking the product to harden the bonding material.

How Bonded Abrasives Work

Bonded abrasives work by utilizing the abrasive grains to remove material from the workpiece through cutting, grinding, or finishing processes. The bonding material holds the grains in place, ensuring precision and control during the operation.

Benefits and Limitations of Bonded Abrasives

Benefits:

• Durability:Bonded abrasives are known for their robustness, making them suitable for heavy-duty applications.
• Precision:They offer precise control over material removal, making them ideal for applications requiring accuracy.
• Versatility: Bonded abrasives can be used on a variety of materials, including metal, ceramics, and composites.

Limitations:

• Heat Generation:In heavy use, bonded abrasives can generate heat, requiring careful consideration to prevent damage to the workpiece.
• Initial Cost:The upfront cost of bonded abrasives can be higher than other types, but their durability often justifies the investment.

Coated Abrasives

Coated abrasives, featuring abrasive grains on a flexible backing material, are valued for their versatility and conformability. This flexibility makes them suitable for applications where a more adaptable abrasive is necessary.

Types of Coated Abrasives

1. Sandpaper:A familiar form of coated abrasives, sandpaper consists of abrasive grains adhered to paper or cloth backing. It is widely used for hand sanding and power tool applications.
2. Abrasive Belts:Continuous loops of coated abrasive material used in belt sanders, these belts are efficient for large surface areas and are common in woodworking and metalworking.
3. Flap Discs:These discs feature overlapping flaps of coated abrasive material attached to a central hub, making them effective for blending and finishing applications in metal fabrication.

How Coated Abrasives Are Made

The production of coated abrasives involves applying adhesive to a flexible backing material and then embedding abrasive grains into the adhesive. The coated product is then cured or dried, creating a flexible yet durable abrasive tool.

How Coated Abrasives Work

Coated abrasives work by allowing the abrasive grains to abrade the material as the flexible backing conforms to the surface. This conformability makes coated abrasives ideal for contoured or irregular surfaces.

Benefits and Limitations of Coated Abrasives

Benefits:

• Flexibility: Coated abrasives are flexible and conformable, making them suitable for irregular surfaces and contours.
• Versatility: They can be used for a wide range of applications, from hand sanding to automated machinery.
• Efficient Material Removal:Coated abrasives are effective for material removal and surface finishing.

Limitations:

• Wear Rate:Coated abrasives may experience a higher wear rate compared to bonded abrasives, requiring more frequent replacements.
• Heat Buildup: In heavy use, coated abrasives can generate heat, necessitating periodic breaks to prevent overheating.

Non-Woven Abrasives

Non-woven abrasives, characterized by a three-dimensional web of nylon fibers impregnated with abrasive grains, offer a unique cutting action that ensures consistency and precision.

Types of Non-Woven Abrasives

1. Hand Pads: Versatile tools for cleaning, deburring, and finishing surfaces, non-woven hand pads find applications in metalworking and woodworking.
2. Belts: Ideal for applications requiring conformability, non-woven abrasive beltsare used for blending and finishing on curved or contoured surfaces.
3. Discs and Wheels: Used for surface preparation and finishing tasks, non-woven abrasive discsand wheels come in various diameters and densities to suit different applications.

How Non-Woven Abrasives Are Made

Manufacturing non-woven abrasives involves bonding abrasive grains to a three-dimensional nylon web. The impregnation process ensures a consistent distribution of abrasive material, creating a tool with controlled cutting action.

How Non-Woven Abrasives Work

Non-woven abrasives work by allowing the nylon fibers to conform to the surface, while the embedded abrasive grains perform the cutting action. This unique structure results in a consistent finish without the risk of gouging or marring the workpiece.

Benefits and Limitations of Non-Woven Abrasives

Benefits:

• Consistent Finish: Non-woven abrasives provide a consistent finish without the risk of gouging or marring the workpiece.
• Cooler Operation: The open structure of non-woven abrasives allows for cooler operation, reducing the risk of heat-related damage to the workpiece.
• Versatility:Non-woven abrasives are effective on a wide range of materials, including metal, wood, and composites.

Limitations:

• Material Removal Rate: Non-woven abrasives may have a slower material removal rate compared to some bonded and coated abrasives.
• Initial Cost: While cost-effective in the long run, non-woven abrasives may have a higher initial cost.

Choosing the Right Abrasive

Selecting the appropriate abrasive involves considering the material type, application, tool compatibility, and surface finish requirements. Bonded abrasives are ideal for precision work, coated abrasives for flexibility, and non-woven abrasives for consistent finishing. Each type has its unique characteristics, advantages, and applications, and choosing wisely can lead to improved efficiency, precision, and overall success in various industries.

Artificial diamond is also called "industrial diamond". Like natural diamond, it is the hardest substance known in nature today. Because of its extremely high hardness, compressive strength and wear resistance, acid and alkali resistance, good thermal conductivity and semiconductor properties, it is often manufactured by synthetic diamond suppliers of various tools, which is widely used in metallurgy, machinery, geology, petroleum, electronics, optics, construction, stone and other fields.

Artificial diamond is the hardest material known in the world. Natural diamond is a rare mineral on the earth. It is a crystalline form of carbon. Gemstone diamond is shining and translucent, which is made into diamond rings and jewelry. In modern times, after the discovery of various properties and use value of diamond, it began to be used in industry. Artificial diamond grinding wheel is a kind of artificial diamond product, which is made of synthetic diamond as the main raw material and other metal powder through high temperature and high pressure. It can be widely used in grinding of cemented carbide, non-ferrous metal and non-metal.

At present, artificial diamond products have been replacing traditional cemented carbide and silicon carbide in the fields of cutting, grinding, sawing and drilling because of their super-high hardness and outstanding wear resistance. They are widely used in all fields of national economy industry, such as stone, construction, highway, railway, geology, petroleum, airport, machinery, energy, aerospace and aviation, electric power, ceramics, electronics, optics and so on. The downstream demand is strong, and it has become an important industrial consumables for modern industry.

EGrind abrasives is professional in diamond and CBN products with over 50 years experience. To learn more abrasive powder types, please contact us!

For scaffolding, our company designs two types of shot blasting machine to clean them. One, hanger type shot blasting machine. Another, roller conveyor shot blasting machine. There are advantages for both kinds of blasting machine.

Hanger type shot blasting machine is suitable for short scaffolding, and it needs some times to load and unloading the scaffolding from the hanger. It needs to clean one group then unloading it, then clean next group. It can not do blasting continuously.

Roller conveyor shot blasting machine is suitable for all kinds of scaffolding. It is very easy to loading and unloading the scaffolding, no need to stop to work. And it can achieve blasting continuously.

Generally, the working efficiency of scaffolding roller conveyor shot blasting machine is higher than scaffolding hanger type shot blasting machine. Hope this two type shot blasting machine can meet your needs.

As one of the most professional shot blasting equipment manufacturers in China, QINGGONG MACHINERY’s activity is the design, manufacture, sales of automatic shot blasting machine, sandblasting room and punching machine and over more than 40 years of experience. If you are interested in our scaffolding shot blasting machine, please feel free to contact us.

1)  Properties

Detonation-synthesized polycrystalline diamond powder

The structure resembles the rare natural polycrystalline black diamond, metallic-grey, superior toughness, self-sharpening.

The lapping and polishing efficiency of the detonation-synthesized polycrystalline diamond micro-powder is 2 to 4 times better compared with that of the mono-crystalline diamond that is naturally occurred or synthesized via the static pressure method, Silicon Nitride, Corundum, and other abrasive materials.

polycrystalline diamond micro-powder allows the manufacturing of the smoothest surface possible:

1.  When using diamond micro powderof size 2-4micron to the polishing surface, Ra(roughness)<1.6nm
2.  When using polycrystalline diamond micro-powder of size 0-0.5micron to the polishing surface, Ra(roughness)<1.3-1.4nm
3.  When using polycrystalline diamond micro-powder of size 0-0.125micron to the polishing surface, Ra(roughness)<0.1nm

polycrystalline diamond can maintain its dull mono-crystalline structure by releasing the outer layer, hence will produce the most scratch free surface possible.

When applied to the surface of a workpiece (for example, the inner surface of a cylinder in an engine) via chemical plating method, the wearability of the surface is superior to that of a surface treated with any other materials.

Via after-sinter technique, polycrystalline diamond micro-powder can be turned into polycrystalline diamond particles of a large size that are highly valuable in a variety of industries.

 2) Application

Lapping and polishing a variety of surfaces that require superior smoothness.

Improving the wearability of a mechanical component

Via after-sinter technique can be applied in a variety of industries.

Can be made into liquid abrasives, gel abrasives, and many other types of abrasive tools that are capable of ultra-fine lapping and polishing tasks.

 Industries:

Polycrystalline diamond micron powder can be used for below industries:

Computer industry: Read/Write head lapping, rigid disk media texturing

Gem polishing

Semi-Conductor, electronic ceramic, optical instruments

Used as anti-wearing media in special rubber and plastics

Chemistry catalyst, Biomedicine

With more than 20 years experience, E-Grind provides all sizes of Poly (Polycrystalline diamond micron powder) with high removal rate, superior surface finishing, and long using life. Our Quality Control Department keeps strict and careful control of raw material from lot to lot to ensure quality basis. All the products are tested during production and after processing, to make sure of quality consistency and quality traceability. The test report is attached to each shipment for customers reference.

Available Sizes:

0-0.15, 0-0.2, 0-0.35, 0-0.5, 0.25-0.35, 0-1, 0-2, 2-4, 3-6, 3-7, 4-8, 4-9, 6-10, 6-12

Custom-made sizes are also available upon customers'  demand.

E-Grind Abrasives is professional in diamond and CBN products with over 50 years experience. Contact us to know more abrasive powder types!

PDC (Polycrystalline Diamond Compact) Cutter

PDC polycrystalline diamond cutters contains polycrystalline diamond layer and tungsten carbide backing. It features both the high shock resistance of tungsten carbide and the highest hardness & abrasion resistance of diamond.

Application: Oil & Gas and Mining.

 Diamond Enhanced Cutter (Dome PDC Cutter)

Diamond enhanced cutter (DEC) is synthesized by diamond particle and tungsten carbide supporting layer at high pressure and high temperature. It is the best replacement to tungsten carbide insert.

It combines both the high wear resistance of diamond and high toughness of carbide.

Application: high-class PDC bits as the gauge, anti-vibration, or center cutters, percussion bits, cone bits, mining picks, PDC bits ...

E-Grind supplies Diamond Enhanced Cutter (Dome PDC cutter) with various shapes: spherical, conical, bullet-shaped, wedge… Our DEC has high impact resistance and wear resistance.

• Grind provides full ranges of PDC specs. Three series are available:

 EA-PD1

The Diamond section is with flat tine junction plane. The thickness of the diamond layer is about 0.8~1.2mm. It is mainly used in stone processing and hole (blind hole) can be punched according to customers'  requirements. 

Specification: 

 EA-PD2

Diamond-section is with slotted junction plane. The thickness of diamond layer is about 1.2~2.0mm.

 EA-PD3

Diamond section is with new net-slotted junction plane, which better removes internal stress of polycrystalline diamond compact; meanwhile the thickness of diamond layer is increased to 1.8~2.5mm and makes wear resistance much higher.

E-Grind Abrasives is professional in diamond and CBN products with over 50 years experience. Contact us to know more abrasive powder types!

Egrind’s metal bond micron diamond powder offer good Roughing, Lapping and finishing result.

For resin bond, vitrified bond, and electroplated bond.

Application: for stone, watch, optical glass etc.

 EA-MW19

Irregular shape, low toughness, uniform Particle Size Distribution.

The best choice when cost is the main concern in the process.

For Lapping, Grinding the hard and fragile material

 EA-MW30

Semi-blocky shape, medium toughness, uniform Particle Size Distribution

Good combination of high grinding performance and high finishing.

For Lapping, Grinding the hard and Brittle material

 EA-MW40

Blocky shape, high toughness, uniform Particle Size Distribution, clean

more wear-resistant than EA-MW30.

For Lapping, Grinding and Fishing the hard and Brittleness material

 EA-MW50

Very blocky shape, high toughness, Narrow Particle Size Distribution, very clean

Very long using life and very high finishing.

For Optical objects, magnet heard, HDD

Available sizes:

Other sizes are also available according to customer requirement.

E-Grind Abrasives is professional in diamond and CBN products with over 50 years experience. Contact us to know more abrasive powder types!

The pcd wire drawing die blanks are produced under ultra-high temperature and ultra-high pressure. It consists of diamond powder and metal catalyst (Cobalt). It features high wear resistance, hardness and thermal conductivity, high mechanical strength, and tenacity. Diamond die blanks are mainly for drawing a wide range of wire such as copper, aluminum, nickel, stainless steel etc. 

As one of the most professional wire drawing dies suppliers in China, E-Grind provides two series of diamond wire drawing dies: CDB Series and TDBY Series. 5 grades of grain size available: 3 microns, 5 microns, 10 microns, 25 microns and 50 microns. 

CDB Series: self-supported die blanks, for all types of wire drawing, especially where cost is the main concern.

CDBL Series: Self-supported Die Blanks (Hexagonal)

CDBY Series: Self-supported Die Blanks (Round)

TDBY Series: tungsten carbide supported die blanks. It is for drawing with high intensity.

Tungsten Carbide supported Die Blanks (Round)

ADDMA: American Diamond Die Manufactures' Association
D: Total Blank Diameter                     d: Diamond Diameter
T: Diamond Thickness

E-Grind Abrasives is professional in diamond and CBN products with over 50 years experience. Contact us to know more abrasive powder types!

CBN micron has unique characteristics in thermal stability, working efficiency, and sharpness. It can be used in resin, metal, and vitrified systems, for precise grinding, polishing and finishing workpiece surface, PCBN blank manufacturing. It works as free grinding particles and pastes as well.

CBN micron powder features good performances in thermal stability, self-sharpening ability, and grinding efficiency. It is suitable for resin, metal, and vitrified bonds. It is used for precise grinding, polishing and finishing workpiece surface, PCBN blank manufacturing, also used as free grinding particles and paste.

E-Grind supplies all sizes range of diamond powder for sale. With advanced equipment in productions and testing, the quality of our CBN micron powder is on the high end and help customers get premium finishing surface.

 CBN-EW2

Black, Blocky, high purity, high grinding efficiency. Uniform size distribution control.

Application: lapping and polishing ferrous, for making honing stones and PCBN as well.

 CBN-EW3

Black, Blocky, high purity, high grinding efficiency. Uniform size distribution control.

Application:lapping and supper precision processing, for making honing stones and PCBN as well.

CBN micron Sizes Available:

E-Grind Abrasives is professional in diamond and CBN products with over 50 years experience. Contact us to know more abrasive powder types!

TSP diamond is made of diamond micro powder and a small amount of binder sintered under high temperature and high pressure. It has high wear resistance, strong impact toughness, good thermally stability, and dense structure, and is widely used in the manufacture of petroleum, geological drill bits, and Machining tools and gem processing.

Thermally Stable Polycrystalline Diamond (TSP) is also called polycrystalline diamond solid pieces. TSP consists of diamond powder & bonder and is made in an ultra-high pressure and high temperature. TSP features good thermally stability up to 1200°C, due to its thermally expansion binder the same as diamond and its chemical inertness.

Application: drilling bits and gauging.

We supply all types of TSP with various shapes and hardness.

E-Grind Abrasives is professional in diamond and CBN products with over 50 years experience. If you want to know more about the abrasive powder types, just contact us! We sincerely invite and welcome people from all around the world to invest and create more values together.

Our Saw Grit series are with cube-octahedron particles, for stone and construction engineering industries such as Granite, Marble, Concrete, Asphalt, Bricks etc. Synthetic diamond grit provides premium thermal stability and impacts resistance performance.

 EA-S700

Highest toughness, Excellent Cube-octahedron shape, high transparency, highest impact resistance, and perfect thermal stability.

Application: sawing, cutting, drilling and grinding hard stones and construction material.

 EA-S600

Higher toughness, relatively good Cube-octahedron shape, high transparency, high impact resistance, and high thermal stability.

Application: cutting, drilling and grinding hard material.

 EA-S500

High toughness, Blocky crystal shape, high transparency, relatively high impact resistance, and relatively high thermal stability.

Application: sawing tools and geological tools.

 EA-S400

Medium-high toughness, Medium blocky shape, medium-high impact resistance, and medium-high thermal stability.

Application: cutting tools and grinding tools with a medium load.

 ED-S300

Medium toughness, Semi-blocky shape,  medium-low transparency, medium-low impact resistance, low thermal stability.

Application: cutting tools and grinding tools with a medium load.

 EA-S200

Medium low toughness, Comparatively regular shape, low transparency, low impact resistance, low thermal stability.

Application: cutting tools and grinding tools with the medium-low load.

Available sizes:

EGrind Abrasives is professional in diamond and CBN products with over 50 years experience. We sincerely invite and welcome people from all around the world to invest and create more values together.

1)  Properties

Detonation-synthesized polycrystalline diamond micro-powder

The structure resembles the rare natural polycrystalline black diamond, metallic-grey, superior toughness, self-sharpening.

Monocrystalline vs polycrystalline diamond：The lapping and polishing efficiency of the detonation-synthesized polycrystalline diamond micro-powder is 2 to 4 times better compared with that of the mono-crystalline diamond that is naturally occurred or synthesized via the static pressure method, Silicon Nitride, Corundum, and other abrasive materials.

polycrystalline diamond micro-powder allows the manufacturing of the smoothest surface possible:

1.  When using polycrystalline diamond micro-powder of size 2-4micron to the polishing surface, Ra(roughness)<1.6nm
2.  When using polycrystalline diamond micro-powder of size 0-0.5micron to the polishing surface, Ra(roughness)<1.3-1.4nm
3.  When using polycrystalline diamond micro-powder of size 0-0.125micron to the polishing surface, Ra(roughness)<0.1nm

polycrystalline diamond can maintain its dull mono-crystalline structure by releasing the outer layer, hence will produce the most scratch free surface possible.

When applied to the surface of a workpiece (for example, the inner surface of a cylinder in an engine) via chemical plating method, the wearability of the surface is superior to that of a surface treated with any other materials.

Via after-sinter technique, polycrystalline diamond micro-powder can be turned into polycrystalline diamond particles of a large size that are highly valuable in a variety of industries.

 2) Application

Lapping and polishing a variety of surfaces that require superior smoothness.

Improving the wearability of a mechanical component

Via after-sinter technique can be applied in a variety of industries.

Can be made into liquid abrasives, gel abrasives, and many other types of abrasive tools that are capable of ultra-fine lapping and polishing tasks.

 Industries:

Polycrystalline diamond micron powder can be used for below industries:

Computer industry: Read/Write head lapping, rigid disk media texturing

Gem polishing

Semi-Conductor, electronic ceramic, optical instruments

Used as anti-wearing media in special rubber and plastics

Chemistry catalyst, Biomedicine

With more than 20 years experience, E-Grind provides all sizes of Poly (Polycrystalline diamond micron powder) with high removal rate, superior surface finishing, and long using life. Our Quality Control Department keeps strict and careful control of raw material from lot to lot to ensure quality basis. All the products are tested during production and after processing, to make sure of quality consistency and quality traceability. The test report is attached to each shipment for customers reference.

Available Sizes:

0-0.15, 0-0.2, 0-0.35, 0-0.5, 0.25-0.35, 0-1, 0-2, 2-4, 3-6, 3-7, 4-8, 4-9, 6-10, 6-12

Custom-made sizes are also available upon customers'  demand.

• Grind Abrasives is one of the most professional polycrystalline diamond suppliersofdiamond and CBN products with over 50 years experience. If you want to know more about the abrasive powder types, just contact us! We sincerely invite and welcome people from all around the world to invest and create more values together.

PCD blank for Cutting Tools

E-Grind supplies the whole range of PCD blanks for cutting tool purpose. The largest Diameter available can be 55mm. Our PCD provides high wearing resistance ability and high finishing surface.

Our plant installs laser cutting machines and surface lapping and finishing machines to provide full service for PCD material. With advanced inspecting machines of SEM, C-SCAN, X-Ray Diffractometer etc. Our plant applies strict Quality Control process.

PCD application:

Non-ferrous metals and alloys: Aluminum/gray iron composite, copper, Aluminum...

nonmetallic materials: ceramics, plastic, rubber, chipboard...

 PCBN

PCBN consists of CBN and Binder. It is produced in high pressure and high temperature. It has excellent performance in hardness, wearing resistance, thermal stability.

Application: for hard ferrous materials (hardened steel, cast iron, high-temperature alloy, HSS, Powder metallurgy metals, Ni-Cr alloy...

E-Grind provides two series of PCBN:

1)Solid CBN

2)CBN with Tungsten Carbide supporting.

E-Grind Abrasives is professional in diamond and CBN products with over 50 years experience. If you want to know more about the abrasive powder types, just contact us! We sincerely invite and welcome people from all around the world to invest and create more values together.

Our metal bond micron diamond powder offer good Roughing, Lapping and finishing result.

For resin bond, vitrified bond, and electroplated bond.

Application: for stone, watch, optical glass etc.

 EA-MW19

Irregular shape, low toughness, uniform Particle Size Distribution.

The best choice when cost is the main concern in the process.

For Lapping, Grinding the hard and fragile material

 EA-MW30

Semi-blocky shape, medium toughness, uniform Particle Size Distribution

Good combination of high grinding performance and high finishing.

For Lapping, Grinding the hard and Brittle material

 EA-MW40

Blocky shape, high toughness, uniform Particle Size Distribution, clean

more wear-resistant than EA-MW30.

For Lapping, Grinding and Fishing the hard and Brittleness material

 EA-MW50

Very blocky shape, high toughness, Narrow Particle Size Distribution, very clean

Very long using life and very high finishing.

For Optical objects, magnet heard, HDD

Available sizes:

Other sizes are also available according to customer requirement.

EGrind Abrasives is professional in diamond and CBN products with over 50 years experience. We sincerely invite and welcome people from all around the world to invest and create more values together.

The diamond pcd wire drawing die blanks    are produced under ultra-high temperature and ultra-high pressure. It consists of diamond powder and metal catalyst (Cobalt). It features high wear resistance, hardness and thermal conductivity, high mechanical strength, and tenacity. Diamond die blanks are mainly for drawing a wide range of wire such as copper, aluminum, nickel, stainless steel etc.

E-Grind is one of the most professional wire drawing dies suppliers , which provides two series of Diamond Wire Drawing Die Blanks: CDB Series and TDBY Series. 5 grades of grain size available: 3 microns, 5 microns, 10 microns, 25 microns and 50 microns.

CDB Series: self-supported die blanks, for all types of wire drawing, especially where cost is the main concern.

CDBL Series: Self-supported Die Blanks (Hexagonal)

CDBY Series: Self-supported Die Blanks (Round)

TDBY Series: tungsten carbide supported die blanks. It is for drawing with high intensity.

Tungsten Carbide supported Die Blanks (Round)

ADDMA: American Diamond Die Manufactures' Association
D: Total Blank Diameter                     d: Diamond Diameter
T: Diamond Thickness

E-Grind Abrasives is professional in diamond and CBN products with over 50 years experience. If you want to know more about the abrasive powder types, just contact us! We sincerely invite and welcome people from all around the world to invest and create more values together.

Diamond is a mineral made of pure carbon and the hardest substance in the natural world. It can not only be processed into valuable jewelry but also has great potential in the industry. It features high thermal stability, high chemical stability, good electrical conductivity and good physical properties (excellent compressive strength, good heat dissipation, high anti-corrosive ability, low rate of heat expansion etc). It has high hardness and good abrasion resistance and can be widely used in cutting, grinding and drilling. Due to its high thermal conductivity and good electrical insulation, it can be used as a heat sink for semiconductor devices, it has excellent light transmission and corrosion resistance. It is also widely used in the electronics industry.

Nowadays Diamond becomes the most important industrial material and widely used in metallurgy, petroleum drilling, construction, mechanical processing, electronic industry, and aerospace industry.

Approximately 90% of diamonds used in various industries are manufactured synthetically.

Equipped with the advanced producing and testing machines and with more than 40 years experience, E-Grind provides all types of Synthetic Diamond powder with premium quality and competitive price. E-Grind is one of the most professional synthetic diamond manufacturers      in China.

EGrind Abrasives is professional in diamond and CBN products with over 50 years experience. We sincerely invite and welcome people from all around the world to invest and create more values together.

We have cvd diamonds for sale!

CVD (Chemical Vapor Deposition) diamond. The mixture of carbon-containing gas and oxygen is excited and decomposed at a high temperature and a pressure lower than the standard atmospheric pressure to form an active diamond carbon atom, and the deposit is alternately grown on the substrate to form a polycrystalline diamond.

The high hardness and high wear resistance of diamond make diamond films an excellent tool material. One of the important properties of CVD diamond is its extremely high thermal conductivity. At room temperature, the thermal conductivity of diamond is five times that of copper. At the same time, it is an excellent insulating material. Therefore, diamond films can be used to make high-power optoelectronic components of the heat sink material. Application of CVD diamond optical properties. Diamonds have very high spectral passivities over a long wavelength range from ultraviolet to far infrared. In addition to the outstanding mechanical and thermal properties of Diamond, Diamond Film is an excellent optical window material that can be used in harsh environments.

In other applications, acoustic waves produce high-quality diamond thin-film acoustic devices at extremely high propagation speeds in diamonds, using chemical stability of diamonds to make various types of biosensor devices.

E-Grind supplies various shaped CVD diamond. CVD has very similar features as diamond.

1. Polycrystalline CVD diamond

Our Polycrystalline CVD diamond is manufactured by DC Arc Plasma  Chemical Vapor Deposition (CVD) method. They can be made into dressing tool blanks, wire drawing die blanks,  laser windows,  domes and thermal mounts etc in mechanical, thermal management, optical windows industries.  E-Grind CVD provides long using life and high working efficiency.

1.1) For Dressing tool

CVD diamond can be used for Dressing application in grinding process. It is suitable for the single point, multipoint, blade, rotary, roller etc It has superior thermal characteristics and very wearing resistant.

1.2)CVD diamond for Cutting tool application

CVD diamond can be used in mechanical working for non-ferrous materials such as ceramics, high silicon-filled aluminum, abrasive composites, graphite etc. With high thermal conductivity, low friction index, high anti-wearing features, it provides premium performance as cutting tool application.

1.3)CVD diamond for thermal management

CVD diamond has unique characteristics of thermal conductivity, which is five times higher than that of copper. We supply thermal management grade of CVD, which with thermal conductivity between 1000-2000 W/mK,

Application: laser diodes, high-power integrated circuits, a heat spreader for satellite and GaN on Diamond.

Specifications

Density: 3.5g/cm3

Young's modulus: 1000-1100Gpa

Growth side surface finish: <100 nm Ra

Nucleation side surface finish: <30 nm Ra

1.4)CVD diamond for optical window

With the advantages of thermal conductivity, broad-band optical transparency and hardness, CVD diamond can be used for microwave windows, laser windows... In these fields, our CVD diamond provides high transparency, low scattering in infrared, high thermal conductivity.

 2.Monocrystal CVD diamond

Advantages

1. Hardness：CVD Single Crystal Diamond has the largest hardness among all materials. Its Vickers Hardness is up to 10000GPa. CVD SCD hardness is 1-2 times of HPHT Diamond (Yellow Color), 6 times of Cemented Carbide.
2. High Wear Resistance: The abrasive ratio of CVD Single Crystal Diamond is up to over 1.5 Million, and the Life Time of CVD Single Crystal Diamond is several times of HPHT Diamond.
3. High Machining Precision: The Surface Roughness of workpiece being machined is up to Ra≤2nm, Profile Tolerance is ≥10nm.
4. High Thermal Conductivity: The CVD SCD transfers heat fast, which is not easily deformed due to cutting heat. It can steadily work under 800℃ environment in the air and 1300℃ environment in the inert gas or vacuum.
5. Low Friction Coefficient: In the air, CVD SCD friction coefficient with metal is 0.1. Therefore it has large friction resistance. The friction resistance is 100 times of Cemented Carbide.
6. Crystal Orientation: Providing(100), (110), (111) orientation.
7. Size Selection: 3*3mm - 10*10mm Thickness: 0.3mm-3mm（Accept customized requirement）.
8. Regular Shape: We provide regular hexahedron CVD SCD.
9. Accept other shapes order: Triangle, Round, Trapezoid etc…

Application

1) For Cutting tools

Monocrystal CVD diamond is widely used for cutting tool industry, including Turning Drilling Boring, Milling cutting tools.

The workpieces for cutting are as below:

1. Sapphire, SiC, Aluminum Alloy, Red Copper, Resin Synthesis Material, Gold, Jewelry, Laminate Floor……
2. Watches Components, Aluminum Piston, Jewelry Ornaments, Non-ferrous Metal;
3. Surgical Tool for Ophthalmology, Brain and Super Thin Biology Slice;
4. Mirror, Guided Missile, Pilot Gyroscope, Computer Hard Disk Substrate, Electronic Gun;

2.1) Optical Grade Diamond

The CVD Mono Diamond is suitable for being used as Optical Window, Laser Crystal of High Power Laser Device, Camera Lens of Large Power UV/IR Optical Instrument and sensor, Detector needs to be worked in extreme environment.

2.2)Heat Sink Grade Diamond

CVD Mono crystal diamond can be applied to High-power laser, microelectronics Heat Sink component, etc.

2.3)Lab-grown Diamond

CVD Mono crystal diamond can be made into a variety of high-end luxury jewelry diamond.

E-Grind Abrasives is professional in diamond and CBN products with over 50 years experience. If you want to know more about the abrasive powder types, just contact us! We sincerely invite and welcome people from all around the world to invest and create more values together.

Application:

FV is one special flexible film made by RIKEN RMC. Taking advantage of special maker line, RIKEN RMC design this new item.FV is a flexible product used in the field of ultra-fine sanding, with a stearated coating to effectively prevent clogged and anti-static, suitable for automobile repair, musical instrument manufacturing industry primer and topcoat sanding, polishing. The good sanding effect, fine scratch, high cutting efficiency, long service life. 3m micro abrasive film psa can be made into disc and sheet, installed in hand sander and pneumatic sander machine.

Application:

FF is one very soft abrasive film products, RIKEN RMC design this item used in the polish field. RIKEN RMC FF is suitable for automotive, electronic products, musical instruments and other industries. FF 3m abrasive film can be used for hand sanding and also be adhered to the sponge, velcro cloth, paper, and base cloth, after reprocessing, made into kinds of sizes disc and sheet, installed in hand sander and pneumatic sander. There are special stearate coating, can effectively prevent clogged and anti-static, widely used in various industries paint surface sanding and polishing.

Application:

RIKEN RMC AF37M the backing is polyester film, with high flat surface and strength. It can be used to sand for wet and dry and has a fast sanding advantage. Used as Velcro and PSA disc, and also suitable for different curved surfaces and paint polishing. Adopting the special treated high-grade grain, semi-open strew grain technology and partial grits have a special anti-clogging stearated coating. It can prevent clogging and stick efficiently, especially suitable for sanding auto putty and primer. RIKEN RMC AF37M 3m abrasive film has the excellent cutting performance, Perfect sanding surface, longer-lasting with Durability. Excellent for contour sanding without folding.

The film backing is waterproof and oil resistant, polyester film isn't easy to be damaged and the surface is more smooth. For the concave and convex surface, the abrasive film will have a good job. It can supply the fine work surface and be folded to any shape, no broken. Using the special resin and advanced electrostatic sand planting process assures the grain is strewed evenly and bonded on the film strongly, which supply the excellent working surface and good sand performance. The special no-fil coating effectively prevents dust bonding during the sanding process and extends the service life.

RIKEN RMC abrasive film is widely used in aluminum alloy parts in the electronic field, it is also used for wet and dry sanding in automotive after service market. It will be converted into disc and strip with multi holes or without holes. Sometimes, it can be folded to hand usage.

Since the smooth surface,the abrasive lapping film can be used to produce P3000.The abrasive film can be used wet and dry also.The above advantages make the abrasive film has more and more popular application .For customers,no need to prepare several types stock for different application.

Now we also use ceramic grain on the abrasive film ,which improves abrasive life very well .At the same time ,we also use the special resin to assure ceramic grain can be attached on the abrasive film very well.At present ,we can supply the high temperature treated Alo grain and ceramic grain film.The color has blue ,green and purple .RIKEN RMC abrasive film can meet customers'all kinds of requirement.

With the industry development, more and more customers like to choose abrasive film finished products .In the near future, only abrasive film can meet the high quality demand. Choose RIKEN RMC film is the future tendency.