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• Time of issue:2014-04-11
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(Summary description)For gears with complex structures, different gear materials can usually be used according to different performance requirements. In order to get the best strength of the gear, the editor will introduce several instructions for everyone. 1. If the powder metallurgy blanks are used to process gears, the strength will definitely be about 10% higher. 2. The accuracy of powder metallurgy gears depends on the material expansion coefficient and the accuracy of the mold. Generally, domestic molds for gears with a diameter of less than 50 are about 8-9 grades, and imported molds are 7-8 grades. If helical gears are one grade higher. The biggest advantage of powder metallurgy gears is that they can be produced in batches with very good consistency. 3. Ordinary FN0205 powder metallurgy gears can carry torque up to 14NM, and warm-pressed parts can reach 20NM. If the warm-pressed FD0405 can reach about 25, it can be mild when the full set of gears adopts professional powder metallurgy design to allow modification. Increase by 30-40%;