在五金行业上精密铸造加工的技术有很多种，然而，这些精密铸造的定向晶体，例如一些精密铸造零件，如磁钢和涡轮发动机叶轮，如果其晶体结构是在使用时以一定角度排列的柱状晶体，则可以提高其工作性能。因此，精密铸造定向晶体技术发展迅速。其中，精密铸造，又称失蜡铸造，更常用：选择合适的熔模材料（如石蜡）制作熔模；反复浸渍耐定送水 铜鼎铜钟 淤泥固化设备 化粪池钢模具 拱形骨架模具 保定代理记账 保定道闸
火涂层，并在熔模上撒上耐火砂，使外壳硬化并干燥；精密铸造可用于制造各种合金的复杂铸件，特别是高温合金铸件。例如，喷气发动机的叶片具有流线型轮廓和冷却腔，很难通过机械加工形成。
There are many technologies for precision casting processing in the hardware industry. However, these directional crystals of precision casting, such as some precision casting parts such as magnetic steel and turbine engine impellers, can improve their working performance if their crystal structure is columnar crystals arranged at a certain angle during use. Therefore, the development of precision casting oriented crystal technology is rapid. Among them, precision casting, also known as lost wax casting, is more commonly used: selecting suitable investment materials (such as paraffin) to make investment molds; Repeatedly immerse the refractory coating and sprinkle refractory sand on the mold to harden and dry the shell; Precision casting can be used to manufacture complex castings of various alloys, especially high-temperature alloy castings. For example, the blade of a jet engine has a streamline profile and a cooling chamber, which is difficult to form by machining.
精密铸造
precision casting
精密铸造工艺不仅可以实现批量生产，保证铸件的一致性，而且可以避免加工后残余刀线的应力集中。精密铸造工艺具有较高的铸件生产质量和较低的修复率。特别适用于具有高表面粗糙度要求和高尺寸精度的中小型铸件和超小型铸件（2-1000g）。不锈钢精密铸件的铸造工艺选择主要取决于铸件的结构特征，如壁厚、形状、重量和体积。应根据不同铸件的结构特点选择合适的铸造工艺。
Precision casting technology can not only achieve mass production and ensure the consistency of castings, but also avoid the stress concentration of residual cutting lines after processing. The precision casting process has high casting production quality and low repair rate. Especially suitable for small and medium-sized castings and ultra small castings (2-1000g) with high surface roughness requirements and high dimensional accuracy. The selection of casting process for stainless steel precision castings mainly depends on the structural characteristics of the castings, such as wall thickness, shape, weight, and volume. Suitable casting processes should be selected based on the structural characteristics of different castings.
