Search This Blog

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

Analysis of Tube Blocking of Liquid Storage Dryer in Automobile Air Conditioner

 

The function of desiccant in automobile air-conditioning is to absorb water in the refrigeration system. When using desiccant in automobile air-conditioning refrigeration system, special attention should be paid to high strength and low wear. The desiccant should also have good compatibility with the refrigerant. High-quality molecular sieves have high strength, low abrasion and good water absorption. Therefore, molecular sieves are mainly used as desiccants in automotive air conditioners. The fake and inferior liquid storage dryers use inferior and cheap desiccants (such as anhydrous calcium chloride, silica gel, etc.) due to their poor strength, easy to cause breakage and pulverization, and poor water absorption, so they often use refrigeration systems Blocked.

The sight glass has two functions: one is to indicate whether there is enough refrigerant in the system; the other is to indicate whether there is water in the refrigerant. The sight glass should be made of materials resistant to corrosion by refrigerants and sealed. There are two assembly methods: sintered and screw-in. The sight glass of the counterfeit liquid storage dryer is made of materials that are not resistant to refrigerant corrosion, resulting in poor sealing and refrigerant leakage.

When there are too many impurities or desiccant in the liquid storage dryer and the suction pipe is blocked, the cooling effect will decrease, and there is a significant temperature difference between the inlet and outlet of the liquid storage dryer. At this time, the liquid storage dryer must be replaced. Due to the different performances of the two refrigerants, HFC-134a and CFC-12, different receiver dryers are required and cannot be mixed. The storage dryer suitable for HFC-134a should use XH-7 molecular sieve as the desiccant, and the O-ring of the connection port should be made of materials with good compatibility with HFC-134a. Since the car air conditioner is installed on the car, the car is bumpy and vibrated greatly during the driving process, so it cannot be connected with rigid metal, but can only be connected with a flexible rubber hose.

。For 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.

Link to this article:Analysis of Tube Blocking of Liquid Storage Dryer in Automobile Air Conditioner

Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting.:Cnc Machining,Thank

Contact Us


Get In Touch or Get A Quote

Need an expert? you are more than welcomed to
leave your contact info and we will be in touch shortly
YOUR COMPANY
Sifangyuan Industrial Park, Xinshapu, Huaide Community
Humen town, Dongguan City, Guangdong Province. 
860769-82886112
860769-82886112