Copper clad steel is the most suitable new grounding material. Compared with traditional grounding materials, it has advantages in the following aspects: corrosion resistance; conductivity; construction difficulty; welding reliability. This paper mainly introduces corrosion resistance and conductivity.

Corrosion resistance of Copper clad steel

The corrosion resistance of grounding body directly determines the service life of substation grounding network. There are two main forms of corrosion of grounding body: surface corrosion and pitting corrosion. Surface corrosion refers to uniform corrosion, which is related to the material and soil corrosion performance of grounding body, and its speed is relatively stable. Point corrosion mainly exists in joints and other parts which are prone to electrochemical corrosion. The rate of point corrosion is 4 to 60 times that of uniform corrosion, which is the main form of corrosion threatening the safety of grounding grid.

The anti-corrosion ability of steel itself is very poor. The steel grounding body is mainly protected by external galvanizing. If there is insufficient protection for the damaged plating such as welding points in the construction process, it is very easy to form point corrosion. Steel grounding grids in substations usually need to be transformed and replaced in ten years, and seldom work steadily for fifteen years. It is useless to increase the cross section of grounding pole by a large margin, because the pitting corrosion speed is too fast, and it is easy to erode and break the horizontal grounding network.

The corrosion rate of copper grounding body in soil is about 1/10-1/50 of steel. The corrosion product of copper material is basic copper carbonate, which will be adsorbed tightly on the surface of copper material to prevent further corrosion and to protect copper material from pitting corrosion. When the coating is reasonable, the corrosion resistance of copper clad steel is equivalent to that of copper. Copper or copper-plated steel grounding grids can operate stably for up to 50 years.

Conductivity of Copper clad steel

The conductivity of grounding material directly affects the power frequency resistance and impact resistance of substation grounding network. According to the International Annealed Copper Standard (IACS), the conductivity of standard copper is 100%, that of standard steel is only 10.8%, and that of copper is about 10 times that of steel. According to the thickness of the coating, the conductivity of the copper clad steel earth rod is about 20%-40%, which is much better than that of the steel grounding rod. In the case of high frequency lightning current impact, the skin effect of conductor is more obvious, and the high frequency conductivity of copper clad steel grounding material is more advantageous than that of steel grounding material.

We provide copper earth cable and galvanized earth rod,RFQ today.

Isaiah 40:31But they that wait upon the Lord shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; they shall walk, and not faint.
Be encouraged; God is near and He is our strength when we are weak.

Currently, the surgical stapler suture used in clinical practice is fast, easy to operate and has no rejection reaction to the tissue. They improve tissue receptivity to staples with fewer side effects, effectively reducing patient pain and increasing surgeon efficiency and surgical success. Due to these advantages, now, the stapler is widely used in a variety of surgical procedures.

With the increase in the number of surgical procedures, the widespread use of minimally invasive surgery, and the gradual improvement of medical infrastructure, the global medical and surgical instruments market is growing at a rapid rate. The market shows a steady growth trend. With the continuous growth of China's economic strength, the medical level of the population and the deepening of medical reform, the ability of China's residents to pay for medical services is also increasing. Currently, there is a clear trend toward an aging population in the country and beyond, and against the backdrop of an increasing number of people suffering from cardiovascular and cerebrovascular disease, cancer and diabetes, the use of stapler among surgeons and patients at home and abroad continues to grow at a rate higher than the global average.

Victor Medical Instruments Co., Ltd is a professional firm of auto surgical staplers and minimally invasive surgery equipment, we provide disposable surgical instruments.

顶级美国线上项目，求真助你实现弯道超车

受到全球疫情影响，美国线上项目已经成为许多美国顶尖大学申请者展示自身能力的重要途径。美国大学申请看重学生的综合能力，而不仅仅是学生的GPA和标化考试成绩。这样的政策为申请者在文书和软性背景提升方面有更大的发挥空间。求真教育何老师结合S同学的申请成功案例，为大家讲解我们该如何利用美国线上项目，在申请季实现华丽的弯道超车，一举实现自己的美国大学名校梦。

背景提升有多重要？

如果说学生的GPA、托福和SAT考试成绩是美国大学申请的基本门槛，软性背景则能够为同学们的申请锦上添花。像加州大学在申请时会要求学生提供高中阶段所参加过的志愿者活动、竞赛、科研、夏校和社团活动等课外活动清单，并且描述自己的感受和收获。而像美国的八所常青藤大学，每年收到的申请者当中，托福115+，SAT1500+的比比皆是。此时，决定学生是否能被录取的关键便是学生在课外活动中所体现的个人特质。当然，背景提升虽然非常重要，但主要目的是为了锦上添花，而不是雪中送炭。所以对于基础比较差的学生来说，先把自己的标化成绩提升至合理的区间会是更加明智的选择。

优秀申请者的背景提升往往都是注重活动的长度和深度。长度强调学生坚持参加活动，而深度强调学生要从活动中有所领悟，从而在文书中体现自己的个人特质，比如领导力、创造力、团队合作能力等等。优秀的背景提升活动能够为文书提供大量素材，能够全方位展示申请者对学校、专业的理解，好的背景提升活动一定能够锦上添花。

S同学：线上项目让她脱颖而出

S同学是广州一所重点高中国际部的学生，为人乐观开朗，非常健谈。她非常喜欢动手参与科学实验，曾经在校级和省级生物比赛中获奖。但S同学成绩不是特别理想，尤其是在文科科目中有一些偏科。在和求真教育老师们交流后，我们决定为S同学安排名校线上科研实验室项目，并且安排专业老师和S同学进行头脑风暴，并且润色和打磨S同学的文书框架，最大化突出她的个人特点。同时，求真老师们安排专业的学术辅导团队为S同学重点提高文科成绩。S同学在美国线上项目中表现优异，并且和导师的沟通十分顺畅，最终获得美国线上项目推荐信。

正是因为这次独特的美国线上项目经历和拿到教授推荐信的喜悦，增加了S同学的信心，S同学在后面的学习中奋发图强，成功把自己的GPA提升到3.88，并且托福和SAT分别拿到了98分和1430分的优异成绩。加上求真美籍老师们在文书当中的帮助，让S同学的领导特性和动手能力得到最大的体现。最终S同学如愿得到了加州大学戴维斯的录取，S同学喜极而泣。一年前GPA不到70分，托福不到80分的他，远远没想到自己能进入梦校继续自己的学业生涯。

项目规划和准备十分重要

很多同学认为美国大学申请跟高考申请大学一样：只需要递交好自己的成绩，成绩越高，拿到的学校录取排名就会越好。但现实中的美国大学绝不是这样的。求真老师们就遇到SAT高分的学生最终申请结果平平。因此在前期规划时，我们要了解清楚自己的兴趣，提前查询好心仪学校的录取标准和往年录取学生的反馈。在此基础上，我们要准备好适合自己的顶级美国线上项目，并且为之不断努力，让自己实现质的飞跃。求真教育提供顶级FIRA机器人世界杯竞赛、编程比赛等培训，让你不出门，在家轻松备战！

求真寄语

美国线上项目是学生背景提升的重要一环，同学们一定要重视起来，不能只停留在准备标化成绩阶段。求真教育拥有10年以上线上背景提升经验，上千加顶级项目助你实现美国大学弯道超车，实现你的名校录取梦想。文章来源:https://indeededu.com

美国线上背景提升

由于疫情的发展，今年准备申请的同学没有办法正常开展校园和校外的各项活动，为了把握好这段时间，继续提高自己，美国线上背景提升是个不错的选择。背景提升的重要性想必已经不必多说，除了三维成绩之外，软实力就是最主要的实力评判标准。做各类背景提升的目的，也不仅仅是为了申请到更好的学校，在做任何事情的过程中，经验和知识的积累也会对之后的学习和工作有利。

背景提升的方式是多种多样的，大到长时间的实习和科研经历，小到参加学术会议、志愿活动、比赛经历等等。本文就为大家推荐一些疫情期间，在家就能完成的美国线上背景提升的方法。

托福和SAT备考

求真教育最近收到很多同学的咨询，问道：现在很多学校的SAT考试改成了选择性提交，是不是就不用准备了呢？

关于这点，答案是否定的。首先我们来了解下本科申请的时间线，一般申请秋季入学的本科学生，学校接受最晚一次SAT成绩是12年级时12月份的那次考试，也就是说距离现在还有大半年的时间。这段时间里，没有人能准确预测疫情会如何发展，如果一段时间后，SAT等考试恢复正常，再开始准备就来不及了。其次，现在很多标准化考试已经改成了线上模式，很难说SAT考试会不会跟上。如果是这样，还是有很多学生会选择去考，那没有SAT成绩的同学，竞争力明显就下降了。当然，备考全靠自觉，线上形式的补习班也有很多，希望大家理性选择，努力充实自己。

暑期学校

暑期学校分为三种，一种是提供给高中在读学生，一种是提供给高中即将毕业、已经被学校录取的学生，一种是提供给几乎所有符合条件的学生，我们一个一个来说。

第一种是常规的暑期学校项目，比较著名的像耶鲁大学的 Yale Young Global Scholars Program (YYGS)。这类项目需要提前半年左右就进行申请，含金量高的同时难度也较高，通常到学校开展2周左右的课程。不过这一类暑期项目收疫情影响很大，大使馆关闭、航班取消、学校改成网课等等因素都使得项目无法正常地开展学术活动，很有可能今年的暑期学校会被推迟或者取消。

第二种是提供给本科新生的过度课程，如果学生想要在正常秋季开学前，提前适应学校环境、熟悉老师和同学、感受大学上课模式，就可以报名参加学校的夏季过度课程。拿加州大学尔湾分校举例，学校给新生提供两类过度课程：Freshman Edge 和 Freshman Edge International，学生可以根据自己的情况进行选择。并且学校刚刚发布最近消息，这两个项目都已经改成线上模式，不会受到疫情影响。

第三种是学校面向全社会开放的线上大学课程，比较有名的像 UCLA Extension，各年龄段各种学历的人都可以申请上课，并且里面所有的课程都是通过 UCLA 认证的，可以转换成大学学分。这类网课种类非常丰富，语言课程、大学基础课程、专业基础课程等等都有提供。大家可以根据自己的情况进行选择。

关注疫情发展，善于思考和总结

这次的疫情是全世界共同面临地挑战，虽然大家可能都在居家隔离，但了解最新的咨询还是非常必要的，甚至有能力的人，可以通过实际行动为社区贡献自己的力量。有人把家里多余的医用口罩捐献给一线人员，有人通过拍摄Vlog把最真实的隔离生活展现给大家，有人收集各类疫情咨询实时发布更新，这些都是可以创造和实现自己价值的地方，等到申请的时候，也会变成独特的文书素材。

看了文章后，希望大家赶紧行动起来，虽然隔离在家，也不要荒废了宝贵的申请准备时光，通过美国线上背景提升丰富自己的课余生活！文章来源：https://indeededu.com

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Nondestructive testing can determine the physical properties of materials, such as ductility, tensile strength and fracture toughness. We usually use non-destructive testing to determine the reliability and integrity of the product in order to control the whole manufacturing process. In addition, the government's safety regulations are increasingly stringent in terms of quality control, reliability and safety of machine performance, while manufacturers'demand for improving machine quality and life is also increasing. These are the main factors contributing to the development of the global nondestructive testing equipment market. However, compared with the rapid development of equipment market, the lack of non-destructive professional and technical personnel is a difficult problem that we have to solve urgently.

The global inspections ndt equipment market is subdivided according to various nondestructive testing technologies, which are divided into ultrasonic testing, radiation testing, electromagnetic testing, visual testing and other testing technologies (including magnetic particle testing and penetration testing). Ultrasound testing equipment occupies a dominant position in the market. The main factor driving the growth of ultrasonic testing equipment market is its wide application in steel and aluminium materials, construction, manufacturing, aerospace, national defense and automotive industries.

According to the region, North America dominates the global inspections ndtequipment market, accounting for about 35.77% of the total market share. Large investments in energy industries such as oil and gas are the main drivers of North American market growth. At the same time, Europe's equipment market is the second largest in the world, and its demand for global inspections ndtequipment will also be further enhanced in our future forecast stage. The demand for modernization of oil and gas and power generation industry is the main factor to promote the development of European market. The automotive industry is likely to make a significant contribution to Europe's future equipment market. And we expect the Asia-Pacific region to be the fastest growing region by 2021.

BKN has ndt testing equipment,if you want to buy it,you can contact us.

Ultrasound flaw detection is a method to inspect the defect of a part by means of the reflection characteristics of the interface edge when the ultrasonic energy penetrates into the depth of the metal material and one section enters another section. When the ultrasonic beam passes from the surface of the part to the inside of the metal from the probe, the reflected waves will occur separately when the defect and the bottom of the part are encountered. Pulse waveforms are formed on the fluorescent screen, and the position and size of defects are judged according to these pulse waveforms. Eddy current detection is to use the principle of electromagnetic induction to excite the probe coil with the sinusoidal current. When the probe approaches the metal surface, the alternating magnetic field around the coil generates induced current on the metal surface. For flat metal, the flow direction of the induced current is a circle with concentric coils, similar to a vortex, called eddy current. At the same time, the eddy current also produces the same frequency magnetic field, which is opposite to the coil magnetic field.

The loss resistance of the eddy current channel and the reverse flux produced by the eddy current are reflected in the probe coil, which changes the current size and phase of the coil, that is, the impedance of the coil. Therefore, when the probe moves on the metal surface and encounters defects or changes in material and size, the eddy current magnetic field reacts differently to the coil, causing the coil impedance to change. By measuring the variation with the eddy current testing instrument, the defect on the metal surface or other changes in physical properties can be identified.

There are many factors affecting the eddy current field, such as the coupling degree between the probe coil and the tested material, the shape and size of the material, conductivity, permeability, and defects, etc. Therefore, the eddy current principle can be used to solve the problems of metal material flaw detection, thickness measurement and sorting.

We did eddy current vs ultrasonic testing,eddy current testing and we mastered ultrasonic flaw detector theory,ultrasonic flaw detector working principle and pulsed eddy current principle,so our products like ndt machine,which can be guaranteed.

Women's jeans can be said to be a star that never fades all year round. There are more and more fabrics and colors of jeans. For example, straight pants and micro-flare pants can make women with thick legs look slim and slender, and tight pants can make fat women slim, and thin women become sexy, and so on. The version has also evolved from the earliest straight to slim, small feet, small straight, hakama, leisure, business, Siamese, retro, speakers, and other new types.

Some styles of women's jeans:

1. Straight jeans

The pants are completely straight.

2. Wide-leg jeans

The trouser legs are like a horn, the ends are quite big.

3. Low-rise jeans

Jeans with a low waistline.

4. Tapered jeans

Also called little feet jeans, because the end of the trousers is relatively small.

Buy ladies jeans online:

1. Waistband: The waistband of the jeans should be slightly loose.

2. Size: The pants at the thigh are slightly loose when you sit down.

3. Length: the lowest part of tapered trousers and straight-leg pants should be about two centimeters below the highest part of the shoe upper.

4. Color: Color is to give people the most intuitive feeling, pay attention to choose your favorite color.

5. Fabric: Traditional jeans fabrics are pure cotton.

6. Model: The size standard of jeans is not the same. Only after you have tried it will you know whether it is suitable.

7. Workmanship: Check whether the stitches of the entire trousers are tightly stitched, whether the zipper is lubricated, and check the size of the belt loop.

Women's jeans cleaning and maintenance:

1. The best cleaning time for jeans is 6-12 months

Try to wash it once every 6-12 months. If you sweat a lot in summer, you can hang your jeans in a ventilated place, spray some clean water, and let it dry in the wind.

2. Do not dry clean or machine wash for the first cleaning

Try not to use machine washing or dry cleaning when cleaning for the first time. It is best to wear it on your body to clean it. This way of washing jeans will make the jeans more conform to your legs and the effect will be better.

3. Jeans must do some color preservation before washing

Before washing jeans, you must do some basic color preservation treatment, otherwise, jeans will soon wash white. Before washing, dip the jeans in a basin with water, then put two spoons of white vinegar.

Shop the latest fashion online at betteryoyo, the best taobao agent, and discover new favorites in women’s jeans. We have all you want! Welcome to buy taobao from us.

The glass fiber continuous filter cloth is composed of continuous glass fiber yarns for both warp and weft yarns. The specially processed and manufactured glass fiber fabric is an ideal high-temperature resistant filter material. The filter material has strong strength, smooth surface, and easy to peel off dust. Temperature can be used at 280 degrees for a long time, corrosion resistance, high dust removal efficiency. Widely used in carbon black / iron / cement / calcium carbide / electrochemical / steel and other industries.

High Temperature Fiberglass Filter Bag performance:

Good heat resistance, long-term use below 280°C;

Good dust stripping, so that the energy consumption of cleaning is low;

Good dimensional stability, the shrinkage of the fiber itself is zero at the use temperature;

Good resistance to chemical attack, except hydrofluoric acid, strong acid, and strong alkali, it is stable to other media;

No water absorption, no moisture absorption;

The filtration efficiency can reach 99.5% or more.

Dust removal frame, also known as dust bag cage, is an indispensable accessory for bag filter, used as a frame of bag supporting cages. It can be compatible with six, eight, ten, twelve, sixteen, eighteen, two Ten or twenty-four tendons. The skeleton is the "rib" of the baghouse filter cages, and it is formed by a special welding equipment. Dust collector bags and cages are widely used in metallurgy, chemical industry, coking, power generation, non-ferrous metallurgy, steel, building materials, coal mines and other industries.

Hebei Ou Tai Environmental Protection Equipment Co., Ltd. is located in Botou City, a famous "dust-removing hometown".Our company produce baghouse cages,warmly welcome Chinese and foreign customers to call or letter us for business negotiations!

Dust collector bag is the heart of a bag filter and is generally called a filter dust bag, dust collection bag. The dust collector bag is a key part of the operation of the bag filter. Usually, the air filter bag is suspended vertically in the dust collector. It is a dust removal device that uses a bag filter element made of a fiber braid to trap solid particles in a dust-containing gas. The principle of action is that the dust particles are intercepted by the collision of the fibers with the inertial force of the filter cloth fibers.

The industrial dust collector bags is suitable for capturing fine, dry non-fibrous dust. The filter bag is made of textile filter cloth or non-woven felt. It uses the filtering action of the fiber fabric to filter the dust-laden gas. When the dust-laden gas enters the bag filter, the dust with large particles and large gravity settles due to gravity. When it falls down into the ash hopper and the gas containing fine dust passes through the filter, the dust is trapped and the gas is purified. Looking for dust bag manufacturer in China, Senotay is your best choice.

Application Field: Works With

The Single-Row Ball type Slewing Ring have four points with one row. They could bear axial load, radial load and tilting moment at the same time. And they are composed of two seat rings, which design in compact structure and light weight, steel ball contact with the circular raceway at four points. There are three types of this kind of single row 4 points contact ball slewing bearing: without gear bearing (non tooth), external crane slewing gear bearing (external tooth), and Internal gear bearing (internal tooth).

Cleverly Change the Lower Bearing of the Tower Crane Slewing

Cleverly change the lower bearing of the tower crane slewing:

1. Firstly, the main rope of the tower crane will be replayed.
2. At 13cm on the flange connected to the bearing seat at the olive-shaped bottom of the rotating body, use a 14mm diameter steel bar to pull the ribs on the four sides of the tower machine in the horizontal direction.
3. At the top four corners of the crane slewing ringplatform, each line has a wire rope buckle with a diameter of 12.5mm, each hanging a 4 ton chain hoist.
4. The four hoist hooks are hung on the angle steel at the lower part of the revolving body at 90 cm. Be sure to hang it up. If there is no hanging point, you can weld a ring with electric welding.
5. After tightening the hoist slightly, remove the connecting bolts of the flange and the bearing seat, the bearing seat and the tower body.
6. Tighten the hoist to create a gap between the parts.
7. Quickly pull out the bearing housing and immediately insert the corresponding thick square wood prepared in advance for the position of the housing that is pulled out.
8. Replace the new tapered tower crane slewing bearingwith the bearing model and add enough butter.
9. Reinstall the parts in place according to the above steps.
10. After removing the temporary fixed steel bars and other objects, they can be tested and put into use.

Slew drive can also be called slew drive gearbox. Most of our slewing ring drive is kind of worm gear reducer. And the slew ring bearing is a gear drive part.

The slewing drive is a full-cycle rotary reduction transmission mechanism integrated with a driving power source. As a professional slew drive manufacturer, Fuyong Intelligent produces high-quality slewing ring drive products! Any inquiry is welcome!

It should be noted that the timing belt is not the only rubber material. Some models use a metal chain for the timing belt, which is the timing chain in our mouth. The replacement cycle between them must be different. Generally speaking, the replacement cycle of the timing chain is longer than that of the timing belt, and the replacement cost will be higher.

Timing chain

Even if they are all timing belts, the replacement cycle will vary from model to model. Usually the car timing belt replacement cycle is around 60,000 kilometers, and the general timing chain is free of replacement, and a few need to be replaced is also more than 100,000 kilometers. However, the specific time is subject to the calibration cycle of each model. The car owners can check it through their car maintenance manual.

Timing belt

Of course, the specific replacement cycle not only needs to refer to the replacement requirements of the vehicle model, but also needs to be adjusted according to your driving habits and maintenance habits. In addition, when the timing belt needs to be replaced, the related accessories will also be replaced together. Unless serious quality problems occur, the accessories will need to be replaced together when the timing belt is replaced.

When changing the engine belt, be sure to align the timing before removing the timing belt. Only when the timing is correct can the tensioner be removed. Only then can the belt be removed. Try not to get the mark wrong when installing the belt. After installing the belt, use a wrench to turn the crankshaft twice, and then look at the mark. If the mark is correct, install other things on the top. Now most cars are easy to top the valve, so the timing mark must be correct. Replace on time according to the requirements of the user manual.

If you feel that you can't solve it, you can go directly to the repair shop to get the , and you must choose a regular repair shop. Because the small repair shop does not have any quality assurance, it may also lead to consumers being deceived.

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We are professional Articulating Boom Lift manufacturer and boom lift supplier in China. We can produce towable articulating boom lift according to your requirements. There are two types of Articulated boom lifts platform: Diesel Articulating Boom Lift and Battery Articulating Boom Lift.

Diesel Articulating Boom Lift

1. Complete Safety Devices: Standard four-link weighing devices; measures such as overload protection, automated detection device for detecting platform amplitude and height, automatic control of the movement speed and traveling speed of the boom lift, and high-precision weighing devices, to ensure the safety and stability of operation in all directions.
2. Control box: Full proportional control handle and CAN bus as well as PLC control system with high positioning accuracy are easy to be controlled and can be operated by the users at will.

3.Traveling System: The closed running system consisting of electro-proportional variable pump, hydraulic control variable motor and flow distribution valve can gain relatively high movement speed and relatively low and stable running speed. The system works efficiently and generates less heat.

4. Hydraulic System: Closed running system, speed easily to be adjusted, wide speed range; the boom's hydraulic system adopts double valve core circuit, which enhances the safety. The hydraulic components adopt European and American pure brands.

Battery Articulating Boom Lift

1. Smaller Structure Size: The power-driven vehicle has smaller width and height (off-running status), which is more suitable for indoor operation.
2. Environmentally Friendly: The electric articulating boom lift takes storage battery as the power source, and makes low noise and no emission, so it can be used indoor and other environments with special requirements.
3. Hybrid Power (Optional) : The options of generator sets are available, and the generators can be used to charge the storage battery.
4. Manually-operated Emergency Drop Device: The manually-operated pump in the system can be used to descend emergently.
5. Power and Gas Supply in the boom Platform: As per the requirements of users, the platform can be equipped with AC380V power and compressed air pipe, to meet the users' special working requirements.

Our company is one of articulating boom lift manufacturers,we provide mini articulating boom lift,self propelled articulating boom, narrow articulating boom lift and towable articulating boom lift.We also make

articulating booms for sale and articulated forklift for sale.

CPD35 Electric Forklift Truck Overall dimensions

CPD35 Electric Forklift Truck Parameters

ATTACK GLOBAL (HK) Co.,Ltd. is a professional manufacturer specializing in material handling machinery for more than 10 years.We provide multi lift fork trucks and compact electric forklift,RFQ today!

LockedAir focuses on providing the total best value solutions in the inflatable protective packaging field. We own a number of patents and real case experience, also set new standards in kinds of applications. LockedAir aims to make a substantial contribution to improving customer packaging safety, cost-effective, and sustainability to ensure significant customer benefit.

Advantages of Air Cushion System

Effective in-box protection while no increase of weight of package.

One roll of LockedAir air pillow can replace 10 rolls of traditional filling material while takes much less storage

Clean and clear buffer, brings good opening experience and good brand image.

Air Cushion Machine

With more than 40 patents worldwide, LockedAir cushion machine differentiates from competitors with neat sealing, more air in bag and leakage free sealing. Locked Air cushion machine is faster, quieter, more compact and more reliable.

We produce air air cushion packaging machine,cushion packing and sealed air inflatable air cushion machine,and also if you want to learn packaging technologies,you can contact us.

1.1 Packing forms such as automatic feeding, box opening, boxing, batch No. printing, glue spreading, box sealing, etc. are adopted. Featured by compact and reasonable structure, simple operation and adjustment.

1.2 Servo/step motor, touch screen, PLC control system and man-machine interface display make operation more clear and convenient. With a high automation degree, the machine is more user-friendly.

1.3 The automatic material arranging and conveying mechanism is adopted to facilitate linked production with an automatic production line, which can greatly reduce labor costs.

1.4 The photoelectric eye automatic detection tracking system is adopted. No boxing is made if the bag is empty, so as to save packing materials to the utmost extent.

1.5 With wide packing range and convenient adjustment, fast switching among various specifications and sizes can be realized.

1.6 Change of specifications does not need changes of molds, but can be realized through adjustment.

1.7 Automatic stopping is available when the material boxing is not in place, and the main driving motor overload protection device is used, so that the machine is safer and more reliable.

1.8 According to customer requirements, the upturning type safety protective cover is adopted, which is featured by simple operation and beautiful appearance.

Our company is one of the best packaging equipment suppliers,we provide tissue box packing machine,you can order it right now.

There are many testing methods for ndt wire rope tester, including ultrasonic testing, ray testing, acoustic emission testing, eddy current testing, electromagnetic testing, mechanical testing, acoustic testing, current testing, optical testing, vibration testing, etc. Until recent years, electromagnetic testing is the main method in the testing of ndt wire rope tester, and the other non-destructive testing technology is still limited to the laboratory research stage.

In view of LF type defect of local damage, magnetic flux leakage detection principle is adopted, that is, the defect of wire rope is detected by leakage magnetic field at the broken wire of wire rope.

In view of LMA type defect of metal cross-section area loss, the main magnetic detection method is adopted, that is, the change of metal cross-section area of wire rope is detected by measuring the magnetic flux passing through the inside of wire rope.

According to the different working principle of electromagnetic detection method, its magnetization can be divided into AC magnetization, DC magnetization and permanent magnetization. Because of its small size, light weight, convenient use and low detection cost, especially the development and application of new permanent magnet materials in recent years, the advantages of permanent magnet magnetization detection device are more obvious, so a large number of permanent magnet magnetization methods are used in electromagnetic detection method.

The commonly used sensor types are Hall element sensor and induction coil. In practical use, the output signal of Hall sensor is not affected by the moving speed of sensor, and the volume of Hall element is small, which has great advantages in measuring small gap space magnetic field. Therefore, the ndt wire rope tester has been widely used.

If you want to buy ndt device and do eddy current testing,welcome to call us,someone will answer the phone anytime.