| 机床铸件的特点是 |
| 添加时间：2022/11/12 14:26:20 浏览次数： |
| 机床铸件的特点是：由于铸铁中石墨有利于润滑及贮油，所以耐磨性好。同样，由于石墨的存在的消震性优于钢。由于灰口铸铁含碳量高，接近于共晶成分，故熔点比较低，流动性良好，收缩率小，因此适宜于铸造结构复杂或薄壁铸件。另外，由于石墨使切削加工时易于形成断屑，所以灰口铸铁的可切削加工性优于钢。 The characteristics of machine tool castings are that graphite in cast iron is good for lubrication and oil storage, so it has good wear resistance. Similarly, the shock absorption of graphite is better than that of steel. Because of its high carbon content and close to eutectic composition, gray cast iron has low melting point, good fluidity and low shrinkage, so it is suitable for casting complex structure or thin-walled castings. In addition, the machinability of gray cast iron is better than that of steel because graphite makes it easy to form chips during cutting. 机床铸件的热处理：床身类铸件产品作为一种大型铸件必须要经过热处理才能提高本身的使用性能，改善铸铁铸件的内在质量。金属热处理是机械u型槽模具 井盖钢模具 保定雅思 一次性止血带 保定养老院 保定水处理设备 一次性止血带 制造中的重要工艺之一，与其它加工工艺相比，热处理一般不改变工件的形状和整体的化学成分，而是通过改变工件内部的显微组织，或改变工件表面的化学成分，赋予或改善工件的使用性能。其特点是改善工件的内在质量。 t Treatment of Machine Tool Castings: As a large-scale castings, the bed castings must be heat treated to improve their performance and internal quality of cast iron. Metal heat treatment is one of the important processes in mechanical manufacturing. Compared with other processes, heat treatment generally does not change the shape of the workpiece and the overall chemical composition, but gives or improves the performance of the workpiece by changing the internal microstructure of the workpiece or the chemical composition of the workpiece surface. Its characteristic is to improve the internal quality of the workpiece |
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