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1前言前西德产的PFSU型万能齿轮测量仪的板状零件表面，要求有2条或3条宽16～18mm的淬硬带。如尺寸为354×112×25mm的顶板，平面上有2条宽16mm，长354mm的淳硬带。扳平面淬火后弯曲变形量达到了0．5～0．8mm，超过了平面弯曲度≤0．30mm的技术要求。本文预想采用如下几种方法
1 Introduction Pre-West Germany PFSU universal gear measuring plate parts surface, requiring two or three wide 16 ~ 18mm hardened zone. Such as the size of 354 × 112 × 25mm of the roof, the plane has two width 16mm, length 354mm Chun-band. Plane quenching after bending deformation reached 0.5 ~ 0.8mm, exceeding the plane bending ≤ 0.30mm technical requirements. This article envisions the following methods