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Ultrasonic cell crushing apparatuses convert electric energy into sound energy through transducer. This kind of energy changes into dense bubbles through the liquid medium, and these bubbles burst rapidly, thus playing the role of breaking cells and other substances.

Principle

The principle of ultrasonic cell crushing apparatuses is not very mysterious and complicated. In short, it transforms electric energy into sound energy through transducer, which is transformed into dense bubbles through liquid medium. These bubbles burst rapidly, thus playing a role in breaking up cells and other substances.

Ultrasound is a kind of elastic mechanical wave in material medium. It is a kind of wave form. Therefore, it can be used to detect physiological and pathological information of human body, that is, diagnostic ultrasound. At the same time, it is also an energy form. When a certain dose of ultrasound is transmitted in the organism, through the interaction between them, it can cause changes in the function and structure of the organism, that is, ultrasound biological effect. The main effects of ultrasound on cells are thermal effect, cavitation effect and mechanical effect. Thermal effect: when ultrasound propagates in the medium, the friction hinders the molecular vibration caused by ultrasound, and transforms part of energy into local high heat (42-43 ℃), because the critical lethal temperature of normal tissue is 45.7 ℃. However, the sensitivity of tumor tissue is higher than that of normal tissue, so the metabolism of tumor cells is blocked at this temperature, and the synthesis of DNA, RNA and protein is affected, thus killing the cancer cells while the normal tissue is not affected. Cavitation effect: under ultrasound irradiation, vacuoles are formed in the organism, and mechanical shear pressure and turbulence are produced along with the vibration and violent explosion of vacuoles, resulting in tumor bleeding, tissue disintegration and necrosis. In addition, when the cavitation bubble breaks, it will produce instantaneous high temperature (about 5000 ℃), high pressure (up to 500 × 104pa), which can make the water vapor dissociate and produce OH and H. The redox reaction caused by OH and H can lead to polymer degradation, enzyme deactivation, lipid peroxidation and cell killing. Mechanical effect is the primary effect of ultrasound. In the process of ultrasound propagation, the media particles alternately compress and expand to form a pressure change, causing cell structure damage. The killing effect is closely related to the frequency and intensity of ultrasound.

Key points for purchase

The ultrasonic generator

The signal generator generates a signal of a specific frequency, which is the frequency of the transducer. Generally, the ultrasonic frequency used in the ultrasonic equipment is 20kHz, 25kHz, 28kHz, 33khz, 40KHz, 60KHZ.

Transducer assembly

The transducer assembly is mainly composed of transducer and horn.

Loudspeaker box

It can effectively reduce the noise produced in the process of work, which can keep the laboratory quiet.

The application of ultrasonic cell crushing apparatuses in our country is in the mature stage, but the application is still not popular. The application range of this instrument (equipment) is very wide, which is incomparable with other instruments and equipment. Therefore, the market potential of the instrument (equipment) is great, and manufacturers are increasing. At the same time, it also causes the relative chaos of ultrasonic cleaning industry and market, which can be described as "a mixture of good and bad".

Shenzhen XZBELEC Inst. & Eqpt. Co., Ltd company is established in 2011, Shenzhen xinzhibang Inst. & Eqpt. Co., Ltd is a professional enterprise of instruments and meters.

ASTM A36/A36M Standard Specification for Carbon Structural Steel

ASTM A36 / A36M standard specification covers carbon structural steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of bridges and buildings, and for general structural purposes. ASTM A36 / A36M Standard main steel grade:A36 carton steel.

 ASTM A36 / A36M description

ASTM a36 steel plate is a type of weldable carbon engineering structural steel. Its carbon content is usually less than 0.25%, higher than ordinary carbon structural steel yield point σs or yield strength σ0.2 (30 ~ 80kgf/mm2) and yield ratio σs/σb (0.65 ~ 0.95), it’s better in the hot and cold machinability, good weldability, low cold and brittle tendency, notch and aging sensitivity, as well as better resistance to atmospheric, seawater and other corrosion. Its low content of alloying elements, generally below 2.5%, is used after hot rolling or after simple heat treatment (non-tempered state); ASTM A36 carbon steel is widely used in bridges, rivets, bolt structures, and other structural elements including drilling rigs, electric shovels, electric drive wheels, anti-landmine vehicles, mining vehicles, excavators, loaders.

Related role of ASTM A36/A36M

At present, the new low alloy high strength steels are characterized by low carbon (≤0.1%) and low sulfur (≤0.015%). The commonly used alloying elements can be classified according to their role in the strengthening mechanism of the steel: solid solution strengthening elements (Mn, Si, Al, Cr, Ni, Mo, Cu, etc.); refinement of grain elements (Al, Nb, V) , Ti, N, etc.); precipitation hardening elements (Nb, V, Ti, etc.) and transformation hardening elements (Mn, Si, Mo, etc.) (see strengthening of metals).

C; The formation of pearlite in the steel or dispersed alloy carbide precipitation, so that the steel is strengthened, can greatly improve the steel's toughness and welding performance.

Mn; High Mn/C ratio is good for improving steel yield strength and impact toughness. Si; Most low-alloy high-strength steels do not require silicon alloying, but silicon is an indispensable additive element in hot-rolled ferritic-martensite multiphase steels.

Mo; molybdenum-containing steel (~0.15%Mo) has higher strength and higher toughness than conventional ferrite-pearlite steel. Nb, V, Ti; 0.05-0.15% Nb (or V, Ti) is added to low-carbon manganese steel or low-carbon manganese-molybdenum steel, which has obvious grain refinement and precipitation hardening effects. Titanium forms sulfides in steel, improving the anisotropy and cold formability of the impact absorption work.

Rare earth (RE); trace (about 0.001%) rare earth metals do not affect the strength of the steel. Its main function is desulfurization, reducing the anisotropy of toughness and preventing the layered tear of steel.

Other elements such as Ni, Cr, Cu, etc., are not very effective in solid solution hardening in microalloyed steels, and are generally controlled at lower content ranges in non-quenched and tempered steels.

To learn more about the a36 steel plate price , please contact us!

LS210 Digital Glass Thickness Meter

Portable Digital Glass Thickness Meter For Air Space Single Double-Glazing Pane Insulated Glass IG With Resolution 0.2mm LS210

LS210 digital glass thickness gauge is mainly used on measuring glass and air space in insulated glass (IG), it also can measure individual panes of glass and the thickness of a glass bottle etc, special for those situations where common ruler cannot easily do it.

Parameters:

1: Dimensions: 130mm*70mm*28mm(L*W*H)

2: Weigh: 200g

3: Resolution: +/- 0.2mm

4: Range: Glass Thickness Scale 60mm, Air Space Scale 35mm

5:Power supply: 4 AAA alkaline batteries

Feature:

1: Laser reflects on CCD to measure glass thickness and Air thickness

2: Measure Glass & Air Space (insulated glass) quickly from single side of IG Units

3: Accuracy: +/- 0.2mm

4: Large LCD, simple operation, easy reading result value

45˚ Gloss Meter

75˚ Gloss Meter

WG60 Glossmeter

HG60 Glossmeter

MG6-F2 Glossmeter

MG6-SM Glossmeter

NHG60 Glossmeter

WG60G Glossmeter

Gloss Meter XZB-C300

HG60S Glossmeter

MG6-F1 Glossmeter

MG6-S1 Glossmeter

MG6-SS Glossmeter

WG60A Glossmeter

WG60T Glossmeter

Shenzhen xinzhibang Inst. & Eqpt. Co., Ltd company is professional in producing various gloss meter and we have 60 degree gloss meter for sale . Always feel free to inquiry!

Gloss meter can test material with gloss, and universally apply to paint, ink, stoving varnish, coating, wood products; marble, granite, vitrified polished tile, pottery brick and porcelain; plastic, paper; hardware industries, etc. for gloss measurement and gloss data transmission.

We have gloss meter for sale, RFQ today!

Colorimeter is widely used in different industries such as plastic, printing, paint, textile, dyeing, etc. It measures the sample color value of L*a*b*, L*c*h*, color difference ΔE and ΔLab according to CIE color space.

1. Introductionof XZB-C10 Portable Colorimeter

Device sensor exports Japan and information processing chip is from USA, which guarantee the optical signal transfer accuracy and electrical signal stability. Display accuracy is 0.01, repeated test accuracy △E deviation value is below 0.1.

2. Multiple color space display color values : L*a*b,L*c*h,Yxy

Being the most commonly used testing device, our colorimeter with built-in color display indicators transformation program, which makes our device could be used for color testing in many different industries. And it do not need convert the measurement data by manual so it greatly improve the work efficiency.

3. Ergonomic Design

Instrument girth radian designs according to human palm so we could test data for a long time with it. Superior leather design increases the friction in case of fingers sliding.

4. Free Color Management Software

Real-time display of qualified or not, generate testing report, save the color data, suitable for the enterprise to evaluate color and control the color data.

5. Establish the Prototype Data L*a*b* by manually

The standard samples can be manually set to meet the color difference test if there is no sample in hand.

6. The device could store 10 standard sample groups and every sample group could store 100 sample data.

7. Advantages

XZB-C10 is the economic version colorimeter designed for the assembly line. It could meet all test requirement for the customers and its high accuracy is also suitable for other color testing work.

8. 8. Technical Data

9. 9. Packing List

10. 10. Technical Support

One Year Guarantee Time.

The Features of High Precision Benchtop Spectrophotometer Colorimeter

It has high precision and uses the setting of the pre-positioning board, which eliminates the need to use the standard blackboard and whiteboard during the calibration of the traditional colorimeter and color difference meter. The built-in software is powerful, with all the necessary color equations, standard light sources for different tasks, and a wide range of industry-specific and application-specific metrics.

Design Principle of Benchtop Spectrophotometer Color Tester

The spectrophotometer is designed according to the principle of spectroscopic type, and the ordinary colorimeter is designed according to the principle of tristimulus value. The color separation colorimeter has high precision and increasing versatility. The color spectrum spectrophotometer can simultaneously measure SCI (a method that includes specular reflection for measurement. For this reason, it minimizes the effects of the sample surface, especially for color quality monitoring and computer color matching) and SCE (is A method of measuring specular reflections. The results of this type of measurement are similar to those observed by the naked eye. Since it can measure the reflectance at each wavelength, it is suitable for complex color analysis, and of course the price is relatively expensive. The tristimulus colorimeter has the characteristics of relatively low price, small size, superior flexibility and easy operation.

The Principle of Measurement

The benchtop colorimeter can measure the "reflectance curve" of each color point (10 nm or 20 nm wavelength interval), while the color difference meter cannot. Spectrophotometers can simulate a variety of light sources, while colorimeters typically have only one or a maximum of two analog sources. Spectrophotometers contain all the necessary color equations, standard light sources for different tasks, and a wide range of industry-specific and application-specific indicators, especially for color quality monitoring and computer color matching. Sufficient to achieve optimal color measurement in quality control in almost all applications.

Colorimeter is widely used in the color management field of plastics, printing, paint, ink, textile, printing metals, dyeing garments, household appliances and scientific research institution.  There are many kinds of colorimeter, such as lab colorimeter and spectrophotometer color meter. According to the laboratory of CIE color space, Lch principle, the measurement shows the color difference △E and △Lab of the Sample and the sample to be tested. It is suitable for internal, external color evaluation and data management.

portable colorimeter, handheld spectrophotometer, benchtop spectrophotometer, color spectrophotometer for powder and transmission spectrophotometer. Our products have been widely used in the fields for plastic, printing, paint, auto parts, metals, household appliances and scientific research institution. 

Shenzhen xinzhibang Inst. & Eqpt. Co., Ltd. is devoted to provide various lab coloimeter. We welcome merchants from all over the world to cooperate with our factory for mutual benefit and win-win, and jointly create a better future.