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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...

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 o...

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...

Powerex PM800HSA120

Powerex PM800HSA120
#PM800HSA120 Powerex PM800HSA120 New PM800HSA120 PowerexPower IPM Transistor 800A/1200V/IPM/1U, PM800HSA120 pictures, PM800HSA120 price, #PM800HSA120 supplier
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PM800HSA120Description:
Powerex Intellimod™ Intelligent Power Modules are isolated base modules designed for power switching applications operating at frequencies to 20kHz. Built-in control circuits provide optimum gate drive and protection for the IGBT and free-wheel diode power devices.
Features:
. Complete Output Power
Circuit
. Gate Drive Circuit
. Protection Logic
– Short Circuit
– Over Current
– Over Temperature
– Under Voltage
Applications:
. Inverters
. UPS
. Motion/Servo Control
. Power Supplies
Ordering Information:
Example: Select the complete part number from the table below -i.e. PM800HSA120 is a 1200V,800 Ampere Intellimod™ Intelligent Power Module.
Power Device Junction Temperature Tj -20 to 150 °C
Storage Temperature Tstg -40 to 125 °C
Case Operating Temperature TC -20 to 100 °C
Mounting Torque, M6 Mounting Screws — 26 in-lb
Mounting Torque, M8 Main Terminal Screws — 95 in-lb
Module Weight (Typical) — 1100 Grams
Supply Voltage Protected by OC and SC (VD = 13.5 - 16.5V, Inverter Part) VCC(prot.) 800 Volts
Isolation Voltage, AC 1 minute, 60Hz Sinusoidal VRMS 2500 Volts
Collector-Emitter Voltage (VD = 15V, VCIN = 5V) VCES 1200 Volts
Collector Current, ± IC 800 Amperes
Peak Collector Current, ± ICP 1600 Amperes
Collector Dissipation PC 4630 Watts


PM800HSA120 PowerexPower IPM Transistor 800A/1200V/IPM/1U

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