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一、采用热处理工艺,碾米机瓦筛寿命提高十余倍湖北利川县农机厂,原来生产的72型碾米机瓦筛,因厂小条件差,不进行热处理,每个瓦筛只能碾米800公斤。他们认识到热处理对提高零件寿命的重要性,自力更生创造条件,对瓦筛进行了渗碳淬火处理,每个瓦筛可碾米14000公斤,使用寿命提高17.5倍。二、改进热处理工艺,铁锹质量提高、成本降低长春铁锹厂生产的铁锹原采用低碳钢固体渗碳淬火回火处理,质量差。现在改用淬火、低温回火获得低碳马氏体,铁锹质量提高,可以砍断8号铁丝,弯角65°不变形,使用中不卷刃、不崩刃,价格由原来的每把2.6元降到1.4～1.5元。
First, the use of heat treatment process, rice milling machine screen life to improve more than ten times Lichuan County, Hubei Agricultural Machinery Factory, the original production of 72 Milling Machine tile screen, due to poor plant conditions, without heat treatment, each screen can only grind 800 kilograms of rice They recognize the importance of heat treatment to improve the life of parts, create conditions for self-reliance, and carburizing and quenching the tile screen. Each tile screen can grind 14,000 kg and increase the service life by 17.5 times. Second, to improve the heat treatment process, improve shovel quality, reduce costs Shovels factory in Changchun shovel production of low carbon steel solid carburizing quenching and tempering, poor quality. Now switch to quenching, low-temperature tempering to obtain low-carbon martensite, shovel quality improvement, you can cut off the 8th wire, the angle of 65 ° is not deformed, the use of not edged, not chipping, the price of 2.6 Yuan dropped to 1.4 to 1.5 yuan.