How to improve the quality of cast iron platforms has always been the pursuit of casting technicians. In fact, pattern making and core making are one of the key processes in the formation of platform castings, and they have a very important impact on the quality of the casting, manufacturing cost, production efficiency, labor intensity, and environmental pollution in all aspects. Only by mastering the process of pattern making and core making can we improve the quality of our cast iron platforms.
1. Clay sand wet sand molding process
Years of production practice have shown that highly mechanized and automated high-density humidity molding processes such as shot compression molding, air impact molding, and static pressure molding, which have advantages of low cost, less pollution, high efficiency, and good quality, will become the main development trend for the production of medium and small-sized castings in China in the future.
2. Resin sand molding and core making process
By developing non-polluting or less polluting binders and catalysts, researching and applying matching environmental protection treatment equipment, widely applying and developing self-hardening resin sand, cold core box self-hardening process, warm core box method, and shell type (core) method. The products of resin molding process include cast iron platforms, cast iron square boxes, and angle plates.
3. Water glass sand molding and core making process
Studying the pollution and modification of water glass to improve its bonding properties, developing new water glass sand old sand regeneration and reuse technology and equipment, further promoting the application of ester hardened water glass sand in medium and large cast iron platforms.
4. Casting coatings
Expanding and strengthening the application scope and mechanism research of transfer coatings and surface alloying coatings.