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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 better t

Classification of CNC Machining Occupation Levels

1. Blue-collar layer:   That is, CNC machining operation technicians, proficient in machining and CNC machining process knowledge, proficient in the operation and manual programming of CNC machine tools (attributes: automated machine tools), understand automatic programming and simple maintenance of CNC machine tools (attributes: automated machine tools), such There is a large market demand for personnel, and they are suitable for operating workers of CNC machine tools (attributes: automated machine tools) in the workshop, but due to their single knowledge, their wages will not be much higher.   2. Gray collar layer:   One, CNC machining programmer:   Master the knowledge of 5 Axis CNC machining Aluminum   technology and the operation of CNC machine tools (attributes: automated machine tools), be familiar with the design and manufacturing expertise of complex molds (title: mother of industry), and be proficient in 3D CAD/CAM software, such as UG, GOOGLE PRO/E, etc. ; Familiar with CNC

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.   CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200   beryllium   copper   and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and lette

Auto air conditioning repair and maintenance magical air conditioning repair additives

Car air conditioning systems are often ignored by most car owners. Generally speaking, the automobile air conditioning system will gradually age after five years of operation, the cooling efficiency will decrease, and the air output will not be strong. Manufacturers and 4S shops often organize car owners to carry out the inspection and maintenance of car air conditioners. But if you want to do some maintenance work yourself, some auto air conditioning repair (maintenance) additives on the market are your good helpers.
Working principle:
These automotive air-conditioning additives can enhance compressor sealing, reduce wear, reduce noise, and improve compressor work efficiency, help greatly reduce the internal friction of the air conditioner, increase sealing, and enhance the cooling effect, making the air The internal functional components play a higher working efficiency, and use this to achieve the purpose of extending the service life of the car air conditioner.
There is also a set of air-conditioning system additives priced at about 400 yuan in the auto supplies market. Through this product, the car owner can carry out a series of processes such as maintenance, cleaning and strengthening of the car air-conditioning.
Main functions:
1. After adding the repair agent, the air outlet temperature of the air conditioner can be reduced by 2~5℃, and the cooling effect of the air conditioner can be improved;
2. Reduce the frictional resistance of the air conditioner compression, reduce the load of the compressor by 15~23%; reduce wear and tear, and extend the service life of the air conditioner by 2 times;
3. Eliminate the abnormal noise of the worn compressor;
4. Save fuel by 10% and reduce the cost of car use.
Some car owners will add Freon refrigerant to the car. When it is very hot in summer, too much Freon refrigerant will cause the high pressure to exceed the limit, the engine will vibrate like thunder, and sometimes there will be a boiling phenomenon.
The maintenance master said that this was mainly due to the low power of the engine and the aging of some equipment. At this time, the air conditioner is turned on, and the engine load is too heavy to drive the air conditioner compressor; if you continue to use the air conditioner forcibly, the loss of the car will increase, and if it is serious, it may cause the car to self-ignite. Therefore, he suggested that relevant automotive air-conditioning additives should be used appropriately in this situation.

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