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一个受机械应力的复杂型面部件需要用组合材料生产以体现型面特性。用复合铸造替代堆焊工艺能生产出符合各种要求的经济而尺寸合格的组合材料。首先,用这种方法能使部件获得较厚的耐磨层。 许多工业部门中的机床和设备的重要功能部件型面除了需耐磨外,还要受复杂的应力。由此产生的对所用材料的许多高要求,例如:较高的耐磨蚀能力和强度特性,尤方面用复合铸造法可以较经济地获得较厚的耐磨层。这样制造的部件型材是一个符合应力要求的型材,符合铸造的双金属特性。这种双金属材料通过参与材料形成的过渡层而互相连接。 复合铸造是将不同熔点的材料同时或先后浇入一个模内或通过往工件上注入补充材料的组合材料生产方法。此间,需区分造型连接和真正的材料连接的复合铸件,后者获得的是具有梯度特性的部件。评定熟知的生产耐磨部件的复合铸造工艺结果表明,按图1生产的各种产品尤其适用。评定的最重要标准是是否能生成一个可靠的复合材料的连接面。 采用同时浇铸方法时,两种材料同时经过不同的浇铸系统进入由一块隔离板分开的不同的型腔内。此时,这种材料连接将由浇铸过程中加热的隔离板完成。
A mechanically stressed complex surface part needs to be made of a composite material to reflect the profile characteristics. The use of composite casting instead of welding process can produce a variety of economic and qualified to meet the various combinations of materials. First of all, in this way, the part can be made thicker wear layer. In many industrial sectors important functional parts of machine tools and equipment in addition to the wear-resistant surface, but also subject to complex stress. The resulting high demands on the materials used, for example: higher abrasion resistance and strength properties, especially with the thicker wear-resistant layers obtained by the compound casting method. The part profile thus manufactured is a stress-conformable profile that conforms to the bimetallic nature of the casting. This bimetallic material is interconnected by a transitional layer that participates in the material. Composite casting is the melting point of different materials at the same time or successively poured into a mold or through the workpiece into the complementary material manufacturing method of composite materials. Here, the need to distinguish between the molding connection and the real material connection of the composite castings, the latter is obtained with the gradient characteristics of the components. The results of the compound casting process, which are well-known for the production of wear parts, show that the various products produced according to FIG. 1 are particularly suitable. The most important criterion for evaluation is whether or not a reliable composite joint surface can be produced. With the simultaneous casting method, both materials pass through different casting systems simultaneously into separate cavities separated by a single spacer. At this point, this material connection will be completed by the insulation during the casting process.