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我厂标准器件上的各种螺钉,螺距在2公厘以内、外径在16公厘以下的,都是采用螺丝搓板(附图)来加工的。这种搓板的齿型在加工前都已经铣出来了,淬火后不再加工,因此热处理后必须严格保证螺纹的齿距不变形,搓板本身不翘曲或歪扭。此外,又由于在辗压螺纹的时候,搓板齿部要受到很大的压力和弯力,所以不但要求齿口能够具有很高的强度和靱性,以避免压偏和脆
I plant a variety of standard screw devices, pitch 2 mm, diameter 16 mm below, are using the screw washboard (with photos) to processing. This type of washboard teeth have been milling before processing, and no longer after quenching, heat treatment must be strictly guaranteed that the pitch of the screw is not deformed, washboard itself is not warped or crooked. In addition, since the scalloped part is subject to a great deal of pressure and bending force when rolling the thread, it not only requires the tooth gap to have high strength and rigidity, but also avoids the occurrence of pressure deflection and brittleness