Centrifugal cast pipe metal type paint

Abstract

The invention discloses centrifugal cast pipe metal type paint, which consists of the following ingredients in part by weight: 15 to 20 parts of zircon powder (containing 65 percent of ZrO2), 10 to 15 parts of diatomite, 10 to 15 parts of bauxite, 5 to 10 parts of talcum powder, 5 to 10 parts of alundum powder, 10 to 20 parts of quartz powder, 3.5 to 4.5 parts of sodium bentonite, 1 to 2 parts ofsilica sol, 0.5 to 1 part of water glass, 0.5 to 1 part of ferric oxide powder, 0.6 to 0.8 parts of titanium powder, 1.5 to 2.5 parts of sodium alginate, 0.6 to 1.2 parts of aqueous polyurethane, 0.3to 0.5 parts of polyving akohol, 2 to 3 parts of watersoluble acrylic resin, 0.4 to 0.6 parts of butyl cellosolve, 0.2 to 0.3 parts of tributyl phosphate, 0.5 to 0.8 parts of ethylene glycol, 0.15 to0.3 parts of isothiazolinone and 30 to 35 parts of water.

Description

Technical field [0001] The invention relates to the field of casting, in particular to the field of centrifugal casting. Background technique [0002] When centrifugal casting pipes, a layer of paint is evenly coated on the inner surface of the metal mold. The purpose is to form a good insulation and release performance on the inner surface due to the effect of the paint when the molten metal is poured into the metal mold. Floor. This requires the coating to have strong adhesion, good auxiliary dispersion, high high temperature strength, good high temperature crack resistance, low gas content, and good collapsibility of the coating after the casting is released, which can ensure the surface of the metal mold and the surface of the casting. Without paint residue, whether the paint can effectively play the role of fire-resistant isolation to protect the metal mold will directly affect the quality of the centrifugal cast pipe. Therefore, a good paint must have the above properties....

AI Technical Summary

Problems solved by technology

The coating of the invention has the characteristics of good fire resistance, strong anti-sand sticking ability, excellent suspension, brushing, and leveling properties, and is suitable for the production of large-scale castings. However, the preparation process of the coating is complicated, and the use and operation are troublesome. It is used for centrifugal casting pipes. Under the action of centrifugal force, the coating layer is easy to crack and peel off