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| High speed punch die for punching silicon steel sheet (silicon steel sheet EI sheet) |
| Date:2021-11-22 |
High speed punch die for punching silicon steel sheet (silicon steel sheet EI sheet)
Tip: for punching silicon steel sheet (silicon steel sheet EI sheet), in the past, ordinary dies were used on ordinary punches; With the increasing demand and precision of silicon steel sheet, the traditional production method can not meet the requirements; More enterprises began to introduce high-speed punches and cemented carbide molds to produce silicon steel sheets. Molds are consumables. Imported molds are not only expensive, but also have a long delivery cycle. At present, China's high-speed stamping industry has developed cemented carbide die series for high-speed punch from imitation to digestion, absorption and improvement: Standard EI sheet die from EI * 24 to EI * 105, non-standard meter die, motor stator and rotor die, etc. The performance of the die is equivalent to that of the imported die. The maximum punching speed reaches 800 times / min and the service life is 100 million times. The punching accuracy (especially flatness) is better than that of the imported die, and good economic and social benefits are obtained.
Cemented carbide materials are small in size, expensive in price, high in hardness and difficult to process. The mold used in high-speed punch must reach high speed. Therefore, the design and manufacture of mold is different from the general material mold on ordinary punch, which must be paid attention to. |
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