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  • 铸造铜铸件的细节有哪些?
  • 本站编辑:杭州德越商业道具有限公司发布日期:2020-12-16 10:31 浏览次数:

铸造铜铸件的细节有哪些?

What are the details of casting copper castings?

所谓的熔模铸造工艺仅需要使用易熔材料制作易熔模型,然后再涂覆几层特殊的耐火涂层,然后进行干燥和硬化。壳体,通过蒸汽或热水将壳体中的模型熔化,然后将其放入沙箱中,并在其周围填充干砂,然后将模具放入烘烤炉中并进行高温烘烤。模具或壳体烧制后,将熔融金属倒入其中以获得铸件。

The so-called investment casting process only requires the use of fusible materials to make a fusible model, then coating several layers of special refractory coating, and then drying and hardening. Shell, the model in the shell is melted by steam or hot water, and then put into the sandbox, and filled with dry sand around it, and then the mold is put into the oven and baked at high temperature. After the mold or shell is fired, the molten metal is poured into it to obtain the casting.

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精密铸造的规模精度高。当然,由于精密铸造的无序过程,影响铸造规模精度的因素很多,型腔的表面形状由于使用了精加工而很高,因此熔模的表面光洁度高。比较高。

The precision of precision casting is high. Of course, due to the disordered process of precision casting, there are many factors affecting the precision of casting scale. The surface shape of the cavity is very high due to the use of finish machining, so the surface finish of investment mold is high. Relatively high.

此外,外壳由特殊的粘合剂和耐高温的耐火材料制成。耐火涂层涂覆在熔模上,与熔融金属直接接触的型腔的内外表面具有很高的耐火性。表面光洁度。因此,熔模铸造的表面光洁度高于常规铸造。

In addition, the enclosure is made of special adhesive and high temperature resistant refractory. The internal and external surface of the cavity which is in direct contact with the molten metal has high fire resistance. Surface finish. Therefore, the surface finish of investment casting is higher than that of conventional casting.

精密铸造的优点是具有很高的氧化皮尺寸和表面光洁度,因此可以减少加工工作量,但零件数量也更高。零件可以有一些加工余量。甚至某些铸件仅需要抛光和抛光,无需加工即可使用。

The advantage of precision casting is high oxide scale size and surface finish, so it can reduce the processing workload, but the number of parts is also higher. Parts can have some machining allowance. Even some castings need only polishing and polishing, and can be used without machining.

熔模铸造方法的另一个优点是,它可以铸造各种无序铸件,特别是用于高温合金铸件。精密铸造工艺不仅可以实现批量生产,而且可以保证铸造的一致性,避免加工后残留刀具的应力集中。

Another advantage of investment casting method is that it can be used to cast various kinds of disordered castings, especially for superalloy castings. The precision casting technology can not only realize mass production, but also ensure the consistency of casting and avoid the stress concentration of residual tool after machining.


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