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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

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

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

Daily maintenance and care measures for automobile water tanks

If the vehicle’s water tank is not handled properly during normal driving, it is very easy to “boil the pot”. Encountering such a situation will not only delay the owner’s time, but also may cause damage to the machine if it is not handled properly. Today, I will introduce to you the daily maintenance of the water tank and the cooling techniques of the high temperature water tank. I hope it will be helpful to the majority of car owners.

High temperature water tank cooling skills:

When the car is driving, white water vapor suddenly emerges from the engine cover, or the pointer of the water temperature gauge rises to the high temperature “H” mark position, it means that the engine temperature is too high. It is usually caused by insufficient water in the water tank, water leakage, or failure of the fan in the water tank.

The processing method is as follows:

Step 1: Find a safe place to park immediately, but don’t turn off the engine immediately. Let the engine keep idling to continue to dissipate heat, and at the same time open the engine cover to increase the heat dissipating speed.

Note: When the water temperature is too high or even boiling:

1. Don’t try to continue driving, so as to avoid major machine damage accidents.

2. Don’t try to open the water tank cover, otherwise hot liquid may spray out and cause burns.

3. Do not pour cold water into the engine block and cylinder head, as it is likely to cause the cylinder block to burst due to sudden cooling.

Step 2: After a period of time, check for water leaks under the car.

Step 3: Wait until the water temperature gauge pointer drops to the proper temperature position, then turn off the engine.

Step 4: Wrap the water tank cover with a wet towel, slowly turn on the ** switch (about 1/4 turn), after the water vapor pressure is released, fully open the water tank cover, check the water volume and quality in the water tank, and the fan belt Are there any exceptions? If the amount of water is insufficient, you should slowly add water to the vicinity of the *high mark.

Note: If the water tank is leaking or the fan belt is loose or broken, you can call the towing company and wait for the trailer to be rescued. If necessary, you can also wait for the engine to cool down completely and then drive the car to a service shop for repairs at a low speed. Remember, you cannot drive at normal speed, otherwise it is likely to cause permanent damage to the engine.

Daily maintenance method:

Generally speaking, the antifreeze should be replaced after driving 20,000 kilometers or one year; when there is no antifreeze, never add tap water. Rust and fouling of the engine water tank are the most common problems. Rust and scale will restrict the flow of antifreeze in the cooling system, reduce heat dissipation, cause the engine to overheat, and even cause engine damage. Antifreeze oxidation will also form acidic substances, which will corrode the metal parts of the water tank, causing damage and leakage of the water tank. The solution to the water tank failure is mainly the routine inspection on weekdays. The water tank should be checked frequently for leaks or rust. It should be cleaned, replaced or added with antifreeze to increase the boiling point and prolong the service life. Generally speaking, the antifreeze should be replaced after driving 20,000 kilometers or one year. This can increase the boiling point, prevent the generation of scale, rust, and improve the heat dissipation effect, so that the water pump has a lubricating effect, and avoids and eliminates the engine damage caused by the instant high temperature caused by the bubbles.

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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