Application of Molten Ceramic Sand (Ceramic Sand) on Cold Core Box Casting

Subsidiary Classification： Product knowledge

Release time：2024-02-19

The cold box process refers to a resin sand forming process that is instantaneously formed at room temperature by means of gas or aerosol catalysis/hardening. The most common for the triethylamine method, the use of phenolic-urethane resin, blowing triethylamine gas hardening. The characteristics of the process are: the core sand can be used for a long time, the mold time is short, the production efficiency is high, the energy consumption is low, suitable for the production of large quantities of core, widely used in the automotive diesel engine industry.

Diesel engine castings, such as cylinder blocks, cylinder heads, intake and exhaust pipes, etc., have some cores with complex shapes, small local cross-sectional areas, and are prone to false shots, fractures, etc., or veins in castings due to the large thermal expansion of quartz sand., There is also a relatively high probability of defects such as sand sticking and pores. The use of ceramic sand or ceramic sand and quartz sand mixed in proportion, the amount of resin added to reduce 20 to 30%, the above defects have been significantly improved, while the sand core collapsibility is very good, reducing the cleaning workload. Thus, only in recent years, almost all of the larger diesel casting foundries, the use of the ceramic sand cold core box process.

Keyword： Application of Molten Ceramic Sand (Ceramic Sand) on Cold Core Box Casting

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