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Method for brushing zircon powder coating

A technology of zircon powder coating and zircon powder, which is applied in coatings, casting molding equipment, casting molds, etc.

Inactive Publication Date: 2012-04-11
SUFA HENGDIAN MACHINERY CNNC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to provide a brushing method of zircon powder coating, which avoids the occurrence of poor quality phenomena in the brushing process, and makes the zircon powder coating fully play its role in the refractoriness of the surface layer of the sand mold cavity. At the same time, it also eliminates the entanglement between the paint quality problem and the supplier

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The coating method of the present invention is as follows: coating the zircon powder paint with a zircon powder content of 60% to 65% on the surface layer of the sand mold cavity and igniting it immediately, then cooling to room temperature; The zircon powder coating is painted for the second time on the surface of the sand mold cavity. After the brushing is completed, it is ignited for 30-60 seconds, and then cooled to room temperature; Paint the surface of the cavity for the third time. After the paint is finished, wait for 30-60 seconds to ignite, and then cool to room temperature.

[0013] The existing brushing method only stipulates the concentration of zircon powder coating for the first brushing, and there is no clear concentration requirement for the first and third brushing, and the operators only operate according to personal experience. The relationship between the brush level and the paint concentration cannot be accurately grasped, thus causing the "bubble ...

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Abstract

The invention discloses a method for brushing zircon powder coating, which comprises the following steps of: brushing zircon powder coating to sand mould cavity surface layer and instantly igniting, after that, cooling to room temperature; preparing zircon powder coating with Baume degree of 38-46 degrees Be, brushing to the sand mould cavity surface layer at second time, after that, waiting for 30-60s and igniting, after that, cooling to room temperature; and preparing zircon powder coating with Baume degree of 30-36 degrees Be, brushing to the sand mould cavity surface layer at third time, after that, waiting for 30-60s and igniting, after that, cooling to room temperature. The bad quality phenomenon in brushing process is avoided, fire resistance of the zircon powder coating on the sand mould cavity surface layer is completely demonstrated and coating quality problem and dispute of supplier are removed.

Description

technical field [0001] The invention relates to a coating method for coating, in particular to a method for coating zircon powder coating on the surface layer of a sand mold cavity. Background technique [0002] Zircon powder has a high melting point and is widely used in refractory materials, zirconium ramming materials for glass furnaces, castables, and spray coatings. As common knowledge for those skilled in the art: the purpose of coating the surface of the sand mold cavity with zircon powder coating is to make the sand mold cavity resistant to high temperature during pouring, so as to prevent the casting from being sand washed during pouring, resulting in sand inclusions in the casting and blisters; and the same quality zircon powder coating, the thickness of the coating is a very critical data, if the coating concentration is not properly controlled, the coating thickness will not meet the requirements, and it will also generate steam when the coating is ignited. Bubb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/00B22C3/00B22C23/02
Inventor 叶永姣李世倾
Owner SUFA HENGDIAN MACHINERY CNNC
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