dry sand moulding的意思|示意

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《英语单词dry sand moulding的用法讲解》

Dry sand moulding，又称干砂铸造，是一种以沙子、砂浆及其他成型辅料制造铸件的方法，是最常用的铸造过程之一。它主要应用于灌注法铸造，是指以无机黏土等成型材料，在沙子中模型比例全型上，经模具内滚动法或压力衬垫法成型而得到模具。

Dry sand moulding process is widely used in production. It is mainly used to make sand or clay moulds or cores under high pressure, and it is widely used in manufacturing industry. The main steps are as follows:

1、模具的构造：根据铸件的结构特性，以干砂做为主要成型材料，在模具中渐渐放入砂浆或砂子，形成一定的整体结构。

2、砂子的构造：根据铸件的结构特性，以粉状砂浆混合比例的沙子，滚筒制备过滤，形成预定箱形结构及模型。

3、实施铸造：在砂模准备完成后，将铸件通过压力或外力注入砂模中，利用模具内的压力硬化砂浆或砂子，在模具内实施铸造工艺。

4、开模：常用的方法是打蜡模，利用蜡的稠度作为护模剂，有时还可以在内壁上贴上蜡膜，以保护模具不被砂子磨损。

Dry sand moulding is a common method for casting, which is used to make castings with high pressure, and is widely used in casting industry. The process is simple and easy to operate, and it is more efficient than other casting processes. In this way, we can make complex shapes and precision parts with complex shapes at one time.