Common method of casting casting of machine tool

Machine casting casting method is commonly used sand casting, followed by special casting methods, such as: metal casting, investment casting, gypsum casting and so on. And sand casting can be divided into clay sand, organic binder sand, resin from the hard sand, lost mold and so on.

The principle of casting method selection:

1, the preferred use of sand casting, the main reason is sand casting compared to other casting methods, low cost, simple production process, short production cycle. When the wet type can not meet the requirements and then consider the use of clay sand dry sand, dry sand or other sand. Clay wet sand casting bed casting weight from a few kilograms up to dozens of kilograms, while the clay dry production of castings can weigh tens of tons.

2, casting methods should be compatible with the production batch. Low pressure casting, die casting, centrifugal casting and other casting methods, because the equipment and molds are expensive, so only for mass production.

3, modeling methods should be suitable for factory conditions.

1, bed casting design flexibility: for the machine tool casting structural design provides a full degree of freedom can be molded through the foam die combination of highly complex castings.

2, no traditional casting in the sand core will not appear in the traditional sand casting due to sand core size is not allowed or the lower core position is not accurate caused by uneven casting wall thickness.

3, clean production of sand without chemical binder, low temperature foam on the environment harmless, the old sand recovery rate of 95% or more.

4, reduce investment and production costs to reduce the weight of machine tool blank, mechanical processing margin is small.

In order to improve the reliability of bed casting, applicability, improve the competitiveness of products in the market, the quality of machine tool casting requirements continue to increase.