Alcoholic-group coating

A coating and alcohol-based technology, applied in coatings, casting molding equipment, casting molds, etc., can solve problems such as narrow application areas, and achieve good effects, high surface precision, and low prices

Active Publication Date: 2015-04-29
CHINA THREE GORGES UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In light-colored coatings, forsterite has the advantages of low price, high temperature resistance, corrosion resistance, good chemical stability, refractoriness up to 1710°C, resistance to metal oxidation and corrosion, and can effectively prevent chemical sand sticking in castings, etc. It is an excellent refractory aggregate, but forsterite is weakly alkaline at high temperature, and is generally only used in alkaline high-alloy steel castings, and its application area is narrow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A new type of alcohol-based paint, consisting of 40% forsterite with a particle size of 150-300 mesh, 20% high alumina bauxite, 5% flake graphite powder, 3% talcum powder, 8% quartz powder, 3% composite binder, Composite suspending agent 1.5%, the balance is isoamyl alcohol. Among them, the weight percentage of each particle size range of the refractory aggregate is 30% for 150-200 mesh, 60% for 200-250 mesh, and 10% for 250-300 mesh. The composite suspending agent is lithium-based bentonite and CMC, and its ratio is 3:1. The composite binder is composed of phenolic resin, urotropine and PVB, the ratio of which is 10:1:2. Mix and stir for 2 hours to obtain the product. When in use, add an appropriate amount of solvent and adjust its Baume degree to 50.

Embodiment 2

[0029] A new type of alcohol-based paint, the weight percentage of forsterite in each particle size range is 150-200 mesh accounting for 25%, 200-250 mesh accounting for 65%, and 250-300 mesh accounting for 10%. Others are the same as in Embodiment 1.

Embodiment 3

[0031] A new type of alcohol-based paint, the weight percentage of forsterite in each particle size range is 150-200 mesh accounting for 35%, 200-250 mesh accounting for 60%, and 250-300 mesh accounting for 5%. Others are the same as in Embodiment 1.

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PUM

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Abstract

The invention discloses a novel alcoholic-group coating which comprises forsterite, high aluminium bauxite, crystalline graphite powder, talcum powder, quartz powder, composite adhesives, composite suspoemulsions and solvents, wherein the forsterite can be replaced with a mixture of 150-200-mesh forsterite, 200-250-mesh forsterite and 250-300-mesh forsterite. The novel alcoholic-group coating has the advantages that crystalline graphite powder and talcum powder are added in refractory aggregates with different particle sizes, and cooperate with the composite adhesives and the composite suspoemulsions, so as to ensure the coating strength, the effect that the coating is not cracked in use and is easy to strip in clean is achieved, and the surface precision of a casting is high.

Description

technical field [0001] The invention relates to a novel alcohol-based paint, which belongs to the application of novel materials. Background technique [0002] Foundry coating is an effective means to solve the sand sticking on the surface of castings and improve the surface quality of castings. As far as iron castings are concerned, there are currently two types of coatings that are widely used: graphite coatings and light-colored coatings. The refractory aggregate of graphite coating is graphite, which has a wide range of sources, good physical and chemical properties, low price and wide application, but it pollutes the environment during the process of preparation and use, and also deteriorates the working conditions of laborers. Most of the refractory fillers of light-colored coatings are light-colored, and light-colored coatings have little environmental pollution, so light-colored coatings are the development trend of future coatings, such as zircon powder, mullite, f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
CPCB22C3/00
Inventor 叶喜葱吴彬彬黄才华黄涛郑镇
Owner CHINA THREE GORGES UNIV
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