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Preparing and painting methods of coating of metal mould casting and rising system

A metal mold, pouring system technology, applied in metal processing equipment, coating, casting and other directions, can solve the problems of insufficient mold pouring, mold sticking, cold isolation, etc., to achieve convenient spraying, simple operation, and improve discharge conditions Effect

Active Publication Date: 2014-09-24
广东领创模架科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above technical problems, the object of the present invention is to provide a preparation and brushing method of the paint of the metal mold gating system. The paint prepared by this method and the brushing method can effectively solve the problem of mold casting insufficiency in the metal mold production process. , cold insulation, sticky mold and other defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1, the configuration method of the metal mold pouring system coating, mix anhydrous zinc oxide, water glass, and anhydrous asbestos powder, after stirring evenly, pour it into deionized water at 65°C, and stir while pouring Until completely even, the proportioning of described anhydrous zinc oxide, water glass, anhydrous asbestos powder and deionized water is by weight percentage: anhydrous zinc oxide 9%, water glass 8%, anhydrous asbestos powder 8%, The rest is deionized water.

[0021] The particle size diameter of the zinc oxide and asbestos powder is less than 0.6mm.

[0022] The modulus of described water glass is 2.5; Density is 1.50g / cm 3 .

[0023] The brushing method of the coating of the metal mold gating system configured by the above method comprises the following steps:

[0024] 1) Pour out the paint that has been prepared within 24 hours;

[0025] 2) Preheat the metal mold after sand blasting to the paint spraying temperature: 280-350°C;

[00...

Embodiment 2

[0028] Example 2, the configuration method of the metal mold pouring system coating, mix anhydrous zinc oxide, water glass, and anhydrous asbestos powder, after stirring evenly, pour it into deionized water at 75°C, and stir while pouring Until completely even, the proportioning of described anhydrous zinc oxide, water glass, anhydrous asbestos powder and deionized water is: anhydrous zinc oxide 11%, water glass 10%, anhydrous asbestos powder 11%, The rest is deionized water.

[0029] The particle size diameter of the zinc oxide and asbestos powder is less than 0.6mm.

[0030] The modulus of described water glass is 3.0; Density is 1.60g / cm 3 .

[0031] The brushing method of the coating of the metal mold gating system configured by the above method comprises the following steps:

[0032] 1) Pour out the paint that has been prepared within 24 hours;

[0033] 2) Preheat the metal mold after sand blasting to the paint spraying temperature: 280-350°C;

[0034] 3) Use a paint...

Embodiment 3

[0036] Example 3, the configuration method of the metal mold pouring system coating, mix anhydrous zinc oxide, water glass, and anhydrous asbestos powder, after stirring evenly, pour it into deionized water at 70°C, and stir while pouring Until completely even, the proportioning of described anhydrous zinc oxide, water glass, anhydrous asbestos powder and deionized water is by weight percentage: anhydrous zinc oxide 10%, water glass 9%, anhydrous asbestos powder 9%, The rest is deionized water.

[0037] The particle size diameter of the zinc oxide and asbestos powder is less than 0.6mm.

[0038] The modulus of the water glass is 2.8 and the density is 1.55g / cm 3 .

[0039] The brushing method of the coating of the metal mold gating system configured by the above method comprises the following steps:

[0040] 1) Pour out the paint that has been prepared within 24 hours;

[0041] 2) Preheat the metal mold after sand blasting to the paint spraying temperature: 280-350°C;

[...

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Abstract

The invention relates to preparing and painting methods of a coating of a metal mould casting and rising system. The preparing method comprises the following steps: mixing anhydrous zinc oxide, sodium silicate and anhydrous asbestos powder, after stirring to be uniform, pouring into deionized water with temperature of 65-75 DEG C, and stirring until being completely uniform while pouring. The painting method comprises the following steps: pouring a prepared coating; preheating a mould subjected to sand blasting; painting the mould casting and rising system by using the coating, with thickness of 0.3-0.5 mm; controlling the thickness of the coating of a riser to be 1-3 mm; preheating and fixing, charging the painted metal mould into an insulation furnace for being baked, preheating until the work temperature of the mould is 350-420 DEG C, and keeping for 1-2 hours. According to the coating prepared by adopting the preparing method and the painting method, the casting defects of insufficient casting, cold shut and the like in a production process of the metal mould can be effectively solved. The preparing method and the painting method play a role of well protecting the metal mould, and further ensure that the mould is stable in size and quality.

Description

technical field [0001] The invention relates to the configuration and brushing method of coatings for metal mold gating systems, and belongs to the technical field of coating application for metal molds. Background technique [0002] Compared with sand casting, metal casting can be used repeatedly, in line with the concept of United Nations Environment Program (UNEP) / green casting, and has many advantages in technology and economy. However, the metal mold is airtight and has no concession, which may easily cause casting defects such as insufficient mold pouring and cold shut. In order to avoid defects such as insufficient pouring and cold shut of the mold, paint is usually sprayed and brushed on the working surface of the casting system of the metal mold to adjust the cooling speed of the mold to achieve the purpose of improving the quality of the mold. But, existing coating and brushing method are still difficult to satisfy above requirement. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00B22C23/02
Inventor 张殿喜张在玉杨秀凡周士芸卢春华闫万珺谌兰樱陈召松邓永荣张忠政
Owner 广东领创模架科技有限公司
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