CAJ | 학술논문

机车用轴箱体铸造传统工艺轴箱内腔补缩采用金属补贴，尽管效果能达到产品质量要求，但金属补贴清理较困难，采用火焰切割时易割伤铸件本体，而且切割后的表面状态很差，机加工时经常发生刀具损坏情况，经济效益和生产效率不理想。采用发热补贴片替代金属补贴，能达到相同的产品质量要求，并能节约钢液，避免金属补贴切割和减少刀具损坏，提高了经济效益。
궤차용축상체주조전통공예축상내강보축채용금속보첩，진관효과능체도산품질량요구，단금속보첩청리교곤난，채용화염절할시역할상주건본체，이차절할후적표면상태흔차，궤가공시경상발생도구손배정황，경제효익화생산효솔불이상。채용발열보첩편체대금속보첩，능체도상동적산품질량요구，병능절약강액，피면금속보첩절할화감소도구손배，제고료경제효익。
Metal pad is always utilized in traditional foundry of axle box for locomotives, which is employed to improve the feeding capacity. Although which make the axle box to be achieved at the standards, metal pad bring about many problems. For example, the lfame cutting to metal pad is very hard and dangerous, and the main casting body always is cut wounded, because the hole of axle box is small;The surface quality of axle box hole is always very rough, which may make the machining tool to be destroyed. All above of negative factors would decrease the economic beneift and producing efifciency. The axle box can meet the requirement as well, and some molten steel could be saved, and negative results above could be avoided, when the metal pad replaced by the exothermic pad.