High-heat-conduction resin sand and production method thereof

Abstract

The invention discloses high-heat-conduction resin sand. The high-heat-conduction resin sand is characterized by being prepared from the flowing components of, by weight, 15-20 parts of furan resin, 15-20 parts of phenolic resin, 10-100 parts of fresh sand, 6-20 parts of reclaimed sand, 2-10 parts of steel balls and 5-10 parts of a curing agent. The steel balls are added to a formula of the resin sand to be served as a formula media, and the steel balls play roles of heat conduction and bearing in the sand making process; it is tested that after the steel balls are added, the heat conduction rate of the whole formula is raised by 30% or more, and production efficiency of a mould reversing process is further improved; and porous iron balls are furthermore added, air permeability of the resin sand is further improved, therefore the cooling speed of molten iron in the mould reversing process is improved, and production efficiency is improved.

Description

technical field [0001] The invention relates to the field of resin sand, in particular to a resin sand with high thermal conductivity and a production method thereof. Background technique [0002] Furan resin sand has the advantages of good casting quality and low rejection rate. However, it still has many defects. In actual production, it is necessary to improve its performance from the aspects of its synthetic raw materials and preparation technology. After the traditional resin sand is prepared, it will be molded and cast with molten iron; however, after the process of adding molten iron, due to the limited heat absorption capacity and strength of the resin sand mold itself, it will cause problems such as difficulty in cooling the molten iron quickly, and if it involves Large-scale resin sand molds will produce huge weight due to the cooling and solidification of molten iron, which will make the resin sand mold bear a large force, which will seriously cause problems such ...

AI Technical Summary

Problems solved by technology

[0002] Furan resin sand has the advantages of good casting quality and low rejection rate. However, it still has many defects. In actual production, it is necessary to improve its performance from the aspects of its synthetic raw materials and preparation technology.

After the traditional resin sand is prepared, it will be molded and cast with molten iron; however, after the process of adding molten iron, due to the limited heat absorption capacity and strength of the resin sand mold itself, it will cause problems such as difficulty in cooling the molten iron quickly, and if it involves Large-scale resin sand molds will produce huge weight due to the cooling and solidification of molten iron, which will make the resin sand mold bear a lot of force, which will seriously cause problems such as mold collapse