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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

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 stress,

Mitsubishi CM30MD-12H

Mitsubishi CM30MD-12H
#CM30MD-12H Mitsubishi CM30MD-12H New CIB Module Three Phase Converter + Three Phase Inverter + Brake 30Amperes/600Volts, CM30MD-12H pictures, CM30MD-12H price, #CM30MD-12H supplier
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Email: sales@shunlongwei.com

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CM30MD-12H Description:
Powerex CIB Modules are designed for use in switching applications. Each module consists of a three phase diode converter section, a three phase IGBT inverter section and a brake section. All components and interconnects are isolated from the heat sinking baseplate, offering simplified system assembly and thermal management.
Power Device Junction Temperature Tj:-40 to 150 °C
Storage Temperature Tstg:-40 to 125 °C
Mounting Torque, M4 Mounting Screws:13 in-lb
Module Weight (Typical) :100 Grams
Isolation Voltage, AC 1 minute, 60Hz VRMS:2500 Volts
Repetitive Peak Reverse Voltage VRRM:800 Volts
Recommended AC Input Voltage Ea:220 Volts
DC Output Current IO:30 Amperes
Surge (Non-repetitive) Forward Current IFSM:300 Amperes
Collector-Emitter Voltage (G-E Short) VCES:600 Volts
Gate-Emitter Voltage (C-E Short) VGES:±20 Volts
Collector Current IC:30 Amperes
Collector Current (Pulse)* ICM:60 Amperes
Emitter Current** IE:30 Amperes
Emitter Current** (Pulse)* IEM:60 Amperes
Maximum Collector Dissipation PC:66 Watts
CIB Module Three Phase Converter + Three Phase Inverter + Brake 30Amperes/600Volts

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