(1) Modeling core
Modeling core is one of the key processes in the formation of castings. It has a very important impact on casting quality, manufacturing cost efficiency, labor intensity and environmental pollution.
1. The practice of clay sand wet sand molding process for many years shows that highly mechanized and automatic molding processes such as injection pressure, air punching and static pressure molding with low cost and good quality will become the production of medium and small castings in China in the future. An important development trend.
2. Resin sand molding core making process through the development of no or less pollution of binders, catalysts, solid research and supporting environmentally friendly processing equipment, widely used and developed resin self-hardening sand, cold core box self-hardening temperature core box method And shell type (core) method.
3. Water glass sand molding core making process Research on the purification and modification of water glass to improve its adhesion, develop new water glass sand old sand recycling and reuse technology and equipment, and further promote hardened water glass sand on large steel castings Applications.
4. Casting coatings expand and enhance the application fields and mechanism research of transfer coatings and surface alloying coatings.
(2) Special casting method
As a kind of precision forming technology that realizes processing with less margin and excess volume, special casting will develop towards thin wall, light weight and energy saving.
Special castings mainly include investment casting, die casting and low pressure casting. Solid casting technology also has a broad development prospect.
Modeling core is one of the key processes in the formation of castings. It has a very important impact on casting quality, manufacturing cost efficiency, labor intensity and environmental pollution.
1. The practice of clay sand wet sand molding process for many years shows that highly mechanized and automatic molding processes such as injection pressure, air punching and static pressure molding with low cost and good quality will become the production of medium and small castings in China in the future. An important development trend.
2. Resin sand molding core making process through the development of no or less pollution of binders, catalysts, solid research and supporting environmentally friendly processing equipment, widely used and developed resin self-hardening sand, cold core box self-hardening temperature core box method And shell type (core) method.
3. Water glass sand molding core making process Research on the purification and modification of water glass to improve its adhesion, develop new water glass sand old sand recycling and reuse technology and equipment, and further promote hardened water glass sand on large steel castings Applications.
4. Casting coatings expand and enhance the application fields and mechanism research of transfer coatings and surface alloying coatings.
(2) Special casting method
As a kind of precision forming technology that realizes processing with less margin and excess volume, special casting will develop towards thin wall, light weight and energy saving.
Special castings mainly include investment casting, die casting and low pressure casting. Solid casting technology also has a broad development prospect.
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