金刚石圆锯片基体微变形淬火工艺研究

ON MICRO DEFORMATION QUENCHING OF DIAMOND IMPREGNATED CIRCULAR SAW MATRIX

本文提出了金刚石圆锯片基体微变形淬火工艺设计原理，研究了６５Ｍｎ钢制造的基体微变形淬火工艺。结果表明，６５Ｍｎ钢金刚石圆锯片基体采用８００℃～８３０℃加热保温后油冷至约３００℃，于压床加压冷却可得小变形量（平面度≤１．１５ｍｍ）。指出控制基体出油温度（～３００℃）及其在压床加压前的温度≥Ｍｓ点（２７０℃）是获得优良效果的关键。

A principle is proposed about the micro deformation quenching of diamond impregnated circular saw matrix. The quenching process of steel 65Mn matrix is studied. It is shown that micro deformation (planeness≤1.15 mm) can be achieved through the following steps: heating and insulation at 800 ℃～830 ℃ and cooling to 300 ℃ in oil, then pressure cooling to room temperature. The key factors are to control the temperature (300 ℃) taken out the saw matrix from the oil and the temperature ≥M s point(270 ℃) before puting the press.