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Working principle of slow wire processing

 Slow wire walking, also called low-speed wire walking, is a kind of CNC machining machine tool that uses continuously moving fine metal wire as an electrode to pulse spark discharge on the workpiece to generate a high temperature of over 6000 degrees, ablate metal and cut into a workpiece. The principle of wire processing is the phenomenon that there is a gap between the wire electrode and the workpiece, and the metal is removed by continuous discharge. Since the slow-moving wire cutting machine adopts the method of wire electrode continuous feeding, that is, the wire electrode is processed during the movement, so even if the wire electrode is worn out, it can be continuously supplemented, so it can improve the machining accuracy of the parts and slow the wire. The surface roughness of the workpiece processed by the cutting machine can usually reach Ra=0.8μm and above, and the roundness error, linear error and dimensional error of the slow-moving wire cutting machine are much bett...

What are the rules for metal stamping die scrap tube?

The Purpose Standardize the management of the scrapping of the company's metal stamping dies, prevent the loss of company assets, and formulate this system specially. Scope of application It is suitable for the management of the company's scrap molds. Definition If the molds listed in the assets of the company fall under one of the following circumstances, the use management department may apply for scrapping. 1. Molds that exceed the specified service life. 2. The mold is severely damaged by accidents or accidents, and molds that cannot be repaired or have no repair value. 3. Metal stamping dies that have not reached the service life, but due to safety, quality, efficiency and other issues, the repair still fails to meet the minimum requirements of the customer's product process or affects the production safety and efficiency. 4. Product customers have stopped placing orders or have not placed orders for molds in several years. 4. Responsibilities 1. Responsibilities of th...

Introduction of KOVAR parts

KOVAR parts are commonly used as metal casing materials in the electronic packaging industry. Because they have a linear expansion coefficient close to that of molybdenum group glass, and can produce less sealing stress during the sealing (melting) process with molybdenum group glass, so To obtain good air-tightness, in order to make the metal tube and shell to achieve air-tight sealing, in the entire sealing process, the annealing process undoubtedly plays an important role as a link between the previous and the next. The internal stress generated during KOVAR  machining also prepares the material structure for the implementation of the subsequent process-the sealing process of the metal parts. The main purpose of annealing Kovar shell before sealing is to: (1) Eliminate machining stress. When Kovar undergoes plastic machining deformation during cold working, about 10% to 15% of the applied energy is converted into internal energy, which is commonly referred to as internal stre...

Car tire maintenance should pay attention to inspection

  The rate of punctured tires in various traffic accidents is really high, and aging tires must be inspected and replaced in time.

The main material of tires is rubber, and rubber products have a certain service life. Therefore, in order to avoid accidents caused by tire aging, it is recommended that car owners still need to check the tires of their cars frequently and be clear about the production date of the tires. I have a bottom in my heart.At the same time, it is necessary to check the wheel alignment in time to find out the cause of irregular tire wear.

Tires should be checked frequently, especially if the road conditions of the car owners are relatively bad for a long time. This work is very important and cannot be ignored. After all, poor driving conditions have a serious impact on the life of the tires.When you find that the tire is gradually hardening, aging, cracking, etc., you should change the tire without hesitation, especially if there are protrusions like bubbles, it means that the structural layer at that place has broken and cannot withstand the tire pressure. With blistering, a puncture may occur at any time.

In addition to puncture accidents caused by tire aging, incorrect tire pressure is also an important cause of puncture.Therefore, car owners should also develop a good habit of checking the tire pressure on their own. In addition, it is recommended that car owners equip themselves with a simple tire pressure gauge, and check the tire pressure of 1 tires every 4 month, so that the owner can have a good idea in his heart. .The attention and maintenance of the spare tire is also very important, otherwise it will not be able to cope with emergencies.

 

Many people think that turbocharged engines are more delicate and require high-grade gasoline. In fact, this is unnecessary. It is clearly stated in the manual that turbocharged models can be added with No. 93 (Beijing standard No. 92) gasoline. What is the use? Standard gasoline is determined according to the compression ratio of the engine, and has nothing to do with whether turbocharging technology is used.

Error three. It is forbidden to turn off the engine immediately after parking

This is an early situation. In the early days, a mechanical water pump was used to cool down. After the flame was turned off, the mechanical water pump could not effectively cool the turbine. Now this problem is solved. The electronic water pump is used, and the cooling function still works after the flame is turned off. In addition, with technology Increase, the turbine temperature will not reach very high on the road, and there is no need to delay the flameout, except for running at high speed for a long time.

Error four. It takes a long time to warm up in winter

Many people think that turbochargers are cooled by oil. In winter, the oil temperature is low and the car cannot be lubricated. It is completely wrong to heat the car for a long time to increase the oil temperature. Maintenance is not good, and exhaust gas is added. It only takes about 2 minutes to warm up the car. When the speed reaches 1000, drive at a slow speed. When the water temperature and oil temperature reach normal, you can drive all the way.

The automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

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