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The piston rod is a connecting part that supports the work of the piston. It is a moving part with frequent movement and high technical requirements, which is mostly used in the moving parts of the oil cylinder and the cylinder.  Taking the hydraulic cylinder as an example, it is composed of cylinder, piston rod (cylinder rod), piston and end cover.  The quality of its processing directly affects the life and reliability of the whole product.The machining requirements of the piston rod are high, the surface roughness requirements are Ra0.4 ~ 0.8μm, and the coaxiality and wear resistance requirements are strict.  The basic feature of cylinder rod is elongated shaft processing, which is difficult to process and has been troubling the processing personnel. The role of the piston rod. The function of the piston rod is to connect the piston and the cross head, transfer the force acting on the piston and drive the piston motion. Basic requirements for piston rod: (1) to have enough strength, stiffness and stability; (2) Good wear resistance and high machining accuracy and surface roughness requirements; (3) Minimize the influence of stress concentration on the structure; (4) ensure that the connection is reliable and prevent loosening; (5) piston rod structure design to facilitate the disassembly of the piston Processing technology The piston rod is processed by rolling, so as to improve the corrosion resistance of the surface and delay the generation or expansion of fatigue cracks, so as to improve the fatigue strength of the cylinder rod. Through ROLLING FORMING, a cold hardening layer IS formed ON the rolling surface, which reduces the elastic and plastic deformation of the contact surface of the grinding pair, so as to improve the wear resistance of the cylinder rod surface and avoid the burn caused by grinding. After

We are attending MEXICO-CHINA INVEST&TRADE EXPO 2022 Date: 8-10th NOV. 2022 Welcome to visit us, our booth no. 104

Shock absorbers are an essential part of the entire suspension system of a car, they improve comfort and prevent mechanical problems. Shock absorbers are hydraulic devices that both control and dampen shocks caused by the movement of the car’s springs and suspension. Therefore, its function is to absorb the shock and energy created by that movement, and it does so by protecting the entire suspension system. It’s also because of them that your car’s wheels remain on the ground, as they also dampen all kinds of shocks and vibrations while driving on the road. Without this mechanism, control over the car would be reduced and even your ability to brake and accelerate would be affected. Therefore, car owners should know that the shock absorber is an integral part of their car, to which the task of minimizing excessive vehicle movement due to road surface irregularities is assigned. Given how important they are to the vehicle, it’s always important to choose the right vehicle for your car. Just as the Bilstein B4 shock absorber is adapted to many BMW models, other famous car brands have other shock absorbers. It is crucial to choose the right spare parts so that while driving, you can do it comfortably and without problems. When can they be changed? Unfortunately, most shock absorbers on the market are relatively vulnerable to damage. This is especially the case if the suspension system is forced to operate frequently in extreme temperatures. It is also common when driving on irregular roads with lots of potholes or holes. It’s also important to consider that while a shock oil leak is a clear indicator of replacement, it tends to wear out, if not at all. However, it is also important for owners to pay special attention to any visible dents in the

As a trillion-dollar market, the automotive aftermarket used to be a huge blue ocean in the eyes of investors and entrepreneurs, but in recent years, with the evolution of the market and the influence of various “black swan” factors, the automotive aftermarket has become more and more inward, and the market is not The turnover and profits of less-operated entities showed a downward trend. For example, according to the data of the China Automobile Maintenance Association, the overall maintenance frequency of Chinese passenger cars and the number of car owners entering the store continued to decrease from 2013 to 2021. However, behind this “turning from blue to red” is actually the aftermarket after the car is brewing Accelerate change. Iteration of new technologies, impacting the automotive aftermarket The automotive aftermarket refers to the general term for various service transactions generated during the use of the car after the car is sold, including car repair, modification, maintenance, insurance, second-hand car transactions, etc. There are many variables in the entire automotive aftermarket itself. factor. But the deeper changes come from technological iteration. In the past ten years, the most notable is the impact of the rise of the “Internet +” trend on the automotive aftermarket industry. The Internet + automotive aftermarket has spawned Tuhu, Diandian, A large number of service application platforms such as Yangchebao and Guazi used cars. At the same time, Internet giants have also entered the automotive aftermarket sector. For example, Baidu Maps uses its own APP as the entrance, and based on its own big data advantages, it has entered the auto maintenance, second-hand car trading and other industries. In addition, Internet giants such as Ali and JD.com have also entered this field. The application of the Internet and big data has profoundly changed the consumption scenarios and

一．The suspension type ✔ The front suspension is the connection between frame and axle, in order to support the weight of the car, to absorb the vibration of the tyre, at the same time set up part of the steering device, according to the form of a front axle can be divided as follows. 1）.Solid Axle Suspension 2）.Independent Suspension A.    Wish Bone Type B.    Strut Type or Mcpherson Type Solid Axle Suspension On both sides of the wheel installed on the axle of a monolithic, wheels via springs installed to the vehicle body. ➡ Installed on the bus, after the truck axle parts before and after the car axle. Independent Suspension The form is breaking axle, two side axle activities irrelevant, to improve ride comfort andSecurity. 1) cross arm type suspension : by the Upper and Lower Control Arm, Steering Knuckle, Steering well, Spring (Coil Spring, Spring to buffer and tire movement up and down. In this form, occur in the tyre ,The brake Force or turning Force (Cornering Force) are supported by control arm, spring only bear vertical load.According to the arrangement of spring and the use of the type of the spring, the form is divided into many kinds of again. 2) Strut Type or Mcpherson Type :With Steering Knuckle form the overall installation under shock absorber sliding struts and cross arm, connection and lower suspension arm Ball Joint and spring. The upper part of the sliding column through the top of the connection plate is connected to the body, the top of the connection plate column and sliding bearing.Body weight is supported by sliding column body through suspension, steering after sliding column rotate along with the steering knuckle.Compared with the cross arm type, simple structure, composition, elements of less, easy to maintain, and can reduce low spring weight,

In order to make the frame and body of the vibration of the rapid attenuation, improve the ride and comfort of the car, the car suspension system is generally equipped with shock absorbers, the automobile is widely used in the bidirectional role of the cylinder shock absorber. Brief introduction: Shock absorbers are fragile parts in the process of automobile use, the working quality of shock absorbers will directly affect the stability of automobile driving and the life of other parts, so the shock absorbers should always be in good working condition. Testing for bug: 1. Make the car stop after driving 10km on the road surface with poor road conditions, touch the shell of the shock absorber by hand. If it is not hot enough, there is no resistance inside the shock absorber, and the shock absorber does not work.  At this time, the appropriate lubricating oil can be added, and then the test, if the shell heat, for the shock absorber internal lack of oil, should add enough oil; Otherwise, the shock absorber fails. 2. Press the bumper firmly and then release it. If the car jumps two or three times, the shock absorber is working well. 3. When the car is moving slowly and the emergency brake, if the car vibration is more severe, it indicates that there is a problem with the shock absorber. 4. Remove the shock absorber to stand upright, and clamp the lower connecting ring on the vise, pull the damping rod several times, at this time there should be stable resistance, the resistance to pull up should be greater than the resistance to press down, such as resistance instability or no resistance, may be the shock absorber internal lack of oil or valve parts damaged, should be repaired or replaced parts Breakdown maintenance: After

How to solve the abnormal sound of top strut mount 1.The shock absorber needs to be removed for butter daubing. The abnormal sound of shock absorber top mount needs to be replaced with a new shock absorber top mount. 2. When the shock absorber is damaged due to serious wear and tear, the vehicle shock absorber will make abnormal sound at work. If the shock absorbent rubber is abnormal, it has a great influence on the stability of the car. 3. The most common reason for the creak when crossing the bumpy road at low speed is the abnormal sound caused by the aging and hardening of the top adhesive of the shock absorber. The problem can be solved by replacing the top adhesive in time. 4. After changing the top mount or the rat-a-tat ring, it was not fastened during assembly, and a place was loose, so it made a rat-a-tat sound. At this time, it was only necessary to tighten all the parts of the removed top mount once, and basically the problem could be solved . Extended information: the car is a shock absorber, the shock absorber is connected with the control arm of the suspension, and the body is connected with the above.  There is a buffer glue between the shock absorber and the body, this glue is called the shock absorber top glue, the role is to buffer the shock, so that you can avoid the shock directly transferred to the car body, so that you can improve the ride comfort. Shock absorbers can mitigate the impact of the road surface, quickly absorb the shock generated by the bump, so that the vehicle can return to normal driving condition.  Shock absorbers are used to suppress the spring’s reciprocating motion, although it can filter the vibrations

Airbag in order to make the vibration of the frame and the body cab rapidly attenuates, improve the ride comfort and comfort of the car, the car suspension system is generally equipped with shock absorber or air bag damping, the automobile is widely used in the two-way cylinder shock absorber.. The shock absorber is a vulnerable part in the process of automobile use, the work of the shock absorber will directly affect the stability of the car and the life of other parts, so we should make the shock absorber often in a good working state.  Automobile, train, subway, AIR SPRING bag, AIR SPRING, Shockabsorber,  Heavy truck, auto, HOWO, HOKA, STEYR, SINOTRUKI, Aolong, SINOTRUKI, Shaanxi Auto, F2000, F3000,WEI, J5, J6,New Dakang, KingKong,  Overlord,jade lion, golden prince, handsome, knight,Mitsubishi, , kai Virginia, Jinlong, Yutong, nk, Volvo, north Benz, golden dragon, Isuzu, Nissan, go, German , etc., Germany,  fire stone continental, American, Goodyear, brands such as model can query to, CONTITECH, FIRESTONE, GOODYEAR, PHOENIX, air compression spring, leather paper making machinery air bag, punch machine air bag, buffer balance air bag, jack lifting air bag, filling air bag,  capsule air spring, membrane air spring, corrugated air bag, rubber air tire, leather tiger, sound insulation vibration isolation air bag, transportation  Machinery and equipment, large swing machine, large-scale amusement equipment, dance coasters, merry-go-round, the application of industry We are washing equipment, washing machine, amusement equipment, merry-go-round, paper making machinery, leather shock, vibration sieve, mining equipment, plumbing equipment, precision equipment and other industrial equipment on the damping of application of the technology of air spring. Truck air bags can be used to check whether the shock absorber works well by the following methods:  1. Make the car stop after running 10km on the road surface with poor road conditions, touch the shell of the shock

Air shock absorbers have a life span of about 80,000 to 100,000 kilometers. Here’s how it works: 1.the car air shock absorber is called the buffer, it through a process called damping to control the undesired spring movement. The shock absorber can slow down and weaken the vibration motion by converting the kinetic energy of suspension motion into heat energy that can be dissipated by hydraulic oil. To understand how it works, it is best to look at the structure and function inside the shock absorber; 2. The shock absorber is basically an oil pump placed between the frame and the wheel. The upper support of the shock absorber is connected to the frame (that is, sprung mass) and the lower support is connected to the shaft (that is, unsprung mass) near the wheel. One of the most common types of shock absorbers in two-barrel designs is that the upper support is connected to a piston rod, which is connected to a piston, which is located in a barrel filled with hydraulic oil. The inner cylinder is called the pressure cylinder and the outer cylinder is called the oil storage cylinder. The oil storage cylinder stores the extra hydraulic oil; 3.when the wheel encounters bumps on the road and causes the spring to tighten and stretch, the spring energy is transferred to the shock absorber through the upper support, and is transferred to the piston through the piston rod down. The piston has holes through which hydraulic fluid can leak out as the piston moves up and down in the pressure cylinder. Because the holes are so tiny, very little hydraulic fluid can pass through at very high pressure. This slows down the piston, which slows down the spring.