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1988年5月南京热处理学会与南京工艺装备厂技协共同协助石台机床配件厂上普通梯形螺纹丝杠正火热校直一条线。内容包括三米卧式电阻炉的设计与制造;车间的平面布置;设备的安装调试;45钢普通丝杠正火热校直工艺;以及丝杠热处理后的质量检查等工作。 C620车床梯形螺纹丝杠正火热校直工艺: C620车床丝杠毛坯尺寸φ45×2190~(+3),毛重27.35kg/根,每炉可进20根,总重540kg,其热处理工艺如下:880±10℃,保温
May 1988 Nanjing Heat Treatment Society and Nanjing Technology and Equipment Factory Association to assist Shitai Machine Tool Accessories Factory ordinary trapezoidal thread screw is a straight line of heat. Including the design and manufacture of three meters horizontal resistance furnace; the layout of the workshop; installation and commissioning of equipment; the normalizing process of 45 steel ordinary screw; and the quality inspection after the screw heat treatment. C620 lathe trapezoidal thread screw is hot straightening process: C620 lathe screw stock size φ45 × 2190 ~ (+3), gross weight 27.35kg / root, each furnace can be entered 20, total weight 540kg, the heat treatment process is as follows: 880 ± 10 ℃, heat preservation