HUALONG CASTING MATERIAL

Alkaline phenolic resin manufacturers share the process characteristics of Alkaline phenolic resin sand

1. Alkaline phenolic resin manufacturers Alkaline phenolic resin does not contain harmful elements such as N, P, S, etc., and will not produce defects caused by infiltration of N, P, and S. It can be used for various alloy castings, especially for alloy steel castings, Ductile iron castings.

Application of Alkaline phenolic resin in Large Steel Castings

The Alkaline phenolic resin curing agent for ester curing is organic ester, and the addition amount is 20% to 30% of the resin amount. Commonly used are glycerol acetate, lactone or a mixture of these esters. An important characteristic of resin sand is that the final strength of the molding sand is the highest when it is just mixed, and the final strength gradually decreases with the extension of time. When only 70% of the final strength is left, the production time at this time is called the usable time.

Other Problems of Alkaline Phenolic Resin No-bake Sand Process

In addition to the problems in the regeneration of used sand, the Alkaline phenolic resin no-bake sand process has some shortcomings. When this process is used, corresponding measures should be taken to obtain better results.

Advantages of Alkaline phenolic resin no-bake sand process

1. The flue gas emitted during sand mixing, molding and pouring is less than furan resin sand with acid as hardener, resol Alkaline phenolic resin with acid as hardener and urethane resin sand with amine as hardener.

Hardening mechanism of Alkaline phenolic resin

In the hardening reaction of Alkaline phenolic resin, the base in the resin reacts with the ester first, forming the carbonate of the alkali metal, releasing the alcohol. After the alkali in the resin forms carbonate, it is in a reaction state, and a cross-linking reaction can occur at normal temperature to bond the sand grains, so that the molding sand has the necessary strength.

Function and usage of Casting cast iron slag remover

Casting cast iron slag remover slag removal and slag blocking: high-efficiency slag remover can be used in ladle, crucible boiler, electric furnace and reverberatory furnace.

What are the performance advantages of cast Casting cast iron slag remover

Cast Casting cast iron slag remover is generally used in cast iron. It is mainly used to gather the infusible material on the surface of the iron aqueous solution to make it easy to remove and ensure the purity of the iron solution. The slag remover can improve the yield of castings and reduce production costs. The method of use is simple. It is widely used in the cast iron industry.

Casting cast iron slag remover company shares knowledge of Casting cast iron slag remover

In the casting process of Casting cast iron slag remover, due to the disordered charge added, the molten metal will produce various waste residues, which will seriously affect the quality of castings and reduce the product qualification rate.

What characteristics should a good Casting cast iron slag remover have

The quality control of Casting cast iron slag remover is strict, the active ingredients account for more than 96%, strictly control the dust and impurities in the product, strictly control the particle size range of the product, and ensure uniform particle size, avoid dust during use, and maintain a clean production environment.

Casting cast iron slag remover remover manufacturers tell you how to choose slag remover

Casting cast iron slag remover remover is used to remove impurities in molten iron and molten steel in casting. The specifications of domestic slag removers mainly include 18-30 mesh, 30-50 mesh, and 50-70 mesh. They are used to gather impurities on the surface of the iron aqueous solution and react into a thin film, which is easy to pick out, thereby ensuring the purity of the iron aqueous solution;