Medium frequency power medium frequency quenching function and related parameters determination
1. IF power supply medium frequency quenching accessories and extended functions
Universal quenching machines often have some accessories and extended function components, so that users can choose according to actual needs.
use:
(1) Indexing table When handling small workpieces, you can use the 6 or 8 lower indexing table.
(2) Anti-bending correction roller When the slender shaft member is processed, this device can reduce the quenching deformation of the shaft member.
(3) Upper center frame When handling workpieces that exceed the length of the workpiece held by the machine tool, the quenching length is
The top center frame can be used when the machine is within the working stroke range. At this point, the top member moves at an angle.
The workpiece can be positioned by the center frame.
(4) Double or multi-tips can process two or more workpieces at a time, improving machine tool production.
("Monitoring the complete control of the quenching fluid flow of the protection and measuring instruments (or flow rate
Off), lack of water, sensor grounding protection, quenching liquid temperature overrun and many other monitoring and protection instruments.
2. Determination of the capacity of intermediate frequency quenching quenching transformer for medium frequency power supply
The capacity of the intermediate frequency quenching transformer is generally selected from 3-5 times the power of the variable frequency power supply. In production, quenching
The duty ratio of the fire transformer is different. For example, the transformer capacity with a low duty ratio can be selected to be smaller.
For example, a gear heats Ss, while cooling and loading and unloading] are two pieces of l0s. Then its duty rate is 5/(5+10)=5/
15 = 0.33; and when scanning a long axis of quenching, the heating time is 300s. Delayed cooling and loading and unloading of workpieces
When the time is 40s, the duty ratio is 300/(300+40)=0.88. At this time, the capacity of the quenching transformer
You should choose a bigger one.
3. Determination of the amount of IGBT in IF power supply
In the past, electrothermal capacitors used two types of capacitors when using a machine generator as a variable frequency power supply.
That is, a fixed capacitor of four joints and a trimmer capacitor of five joints. Capacitance of four connectors
equal. The capacitance of the five connector taps is not equal, so that it can be easily and accurately adjusted when the electrical specifications are adjusted.
Harmony. Modern thyristors and ICBT power supplies have frequency tracking capabilities, and trimming capacitors are no longer needed.
The capacitance of the capacitor can be calculated as follows for the intermediate frequency power supply.
Hydraulic Flange fitting inculde SAE Code 61 and Code 62 Code 61 hydraulic fitting flange is intended for for pressures up to 3,000 psi. Code 62 is intended for up to 6,000 psi. Bolt hole spacing and flange fittinghead diameters are larger for the higher pressure Code 62 fittings.
The female port is an unthreaded hole with four bolt holes in a rectangular pattern around the port. The male hydraulic fitting is a flanged head, grooved for an O-ring, and either a captive flange or split flange halves with bolt holes to match the port. The seal takes place by compressing the O-ring between the flanged head and the flat surface surrounding the port. The threaded bolts hold the hydraulic connection together.
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