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我厂锻压用的精锻齿轮模具、汽车转向节臂等模具都是用D6140A电蚀加工机床生产的。加工过程中,金属屑随着冷却油流到油箱。由于金属屑极其微小,机床的滤油器无法滤除。我们曾加装了静电滤油器。但由于金属微屑在两金属极板中沉淀,造成极板短路,使静电滤油器失去滤油作用。这样齿轮泵用不了二个月就失去精度。工作中抽不起冷却油,没有压力、噪声极大。
Forging with precision forging gear mold, car steering knuckle arm and other molds are D6140A electric erosion machining machine. During processing, the metal chips flow with the cooling oil to the tank. Due to the extremely small metal shavings, the oil filter of the machine can not be filtered out. We have installed an electrostatic filter. However, due to the metal micro-crumbs precipitated in the two metal plates, resulting in plate short circuit, so that the role of the electrostatic filter lose oil filter. This gear pump can not lose accuracy within two months. Work can not afford cooling oil, no pressure, great noise.