How to make the quality of sand better in the process of producing coated sand-Jiangsu Juyang Precision Modeling Material Technology Co., Ltd.

How to make the quality of sand better in the process of producing coated sand

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How to make the quality of sand better in the process of producing coated sand

In the process of producing coated sand, how to make the quality of the sand better. To make a successful coated sand, you must first know what raw materials are required to make coated sand, the process of coated sand, and what chemical materials are used. First, The process is to mechanically mix powdery thermosetting phenolic resin with raw sand and solidify when heated. The raw materials used in the production of coated sand are resin and Urotropine. To produce successful coated sand, the following points must be achieved:

1. The quality of raw materials should be good, but bad raw materials play a bad role.

2. The ratio of raw materials to raw sand is well grasped.

3. Control the stove time.

4. Raw sand is better. The quality of raw sand directly affects the quality of coated sand.

The state of the coated sand and the basic process of manufacturing. The coated sand is generally dry and granular. In recent years, manufacturers in China have developed wet and viscous coated sand. The basic process of manufacturing the coated sand core is 5 stages: sand blowing or reversing-shell joining-sand removal-hardening-coring. The production of solid coated sand casting shows that the quality of the equipment, especially the stirring effect, cooling and crushing effect of the sand mixer used in the thermal coating process, directly affects the uniformity of the resin coating of the coated sand. And smoothness, which affect its strength, flowability and formability, and production efficiency.

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