The casting production process is a complex and comprehensive process combination, which includes many production processes and links, from the preparation of metal materials and non-metal materials, to alloy smelting, modeling, core making, molding pouring, cleaning, castings to eliminate defects and heat treatment. Even to obtain qualified castings, the casting production process includes the following main processes:

 

1. Preparation of molding sand and core sand. The preparation process of molding sand directly affects the quality of molding sand. The preparation of molding sand is generally divided into the preparation and inspection of raw materials and the preparation and quality control of molding sand.

 

2. Modeling. The method and process of making sand molds with molding sand and patterns and other process equipment is called modeling. There are many types of modeling methods, which depend on the shape, size, and technical requirements of the casting.

 

3. Smelting. The process and operation of turning the metal from solid to liquid by heating, and removing impurities in the molten metal through metallurgical reaction, so that the temperature and composition meet the specified requirements, become smelting. There are many types of equipment for smelting metals. We produce cast iron platforms, and cupolas are generally used for machine tool castings.

 

4. Sand mold drying. Dry casting is generally used for some larger or high quality castings. For example, large cast iron platforms, machine tool bed castings, machine tool tables, machine tool castings, etc.

 

5. Pouring. The operation of injecting molten metal from the ladle into the mold is called pouring.

 

6. Cleaning. The process of removing the surface sticky sand, molding sand and excess metal from the casting after falling sand is called cleaning

 

7. Casting heat treatment. The process of heating the casting to a certain temperature range, holding it for a period of time, and then cooling it to the appropriate temperature at a specified speed to obtain the expected structure and performance, is called the casting heat treatment. The purpose of heat treatment of the casting is to eliminate the casting stress of the casting. For example, cast iron platforms, machine tool castings, and machine tool tables must undergo heat treatment before they can be processed.

 

CNC cast iron table

 

Jinggong Measuring Tools Producing Co., Ltd is specializing in manufacturing and exporting all kinds of cast iron products，especially for cast iron floor plates, cast iron surface plates, cast iron clamping plates, cast iron angle plates, cast iron box table and other machine tool castings. Our engineering enables us to design the cast iron plates and tables according to DIN Standards, Indian Standards and Chinese Standards, machining by CNC machine tools and install in the world market.