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Hot mould centrifugal cast iron pipe mold paint and preparation method thereof

A technology of centrifugal cast iron and mold coating, applied in the direction of casting molding equipment, molds, mold components, etc., can solve the problems of low product yield, poor economic benefits, poor quality of cast iron pipes, etc., achieve good suspension, improve Effect of service life and low outgassing

Active Publication Date: 2011-09-07
绛县恒通铸造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical difficulties of poor quality of the produced cast iron pipes, low product yield and poor economic benefits existing in the existing coatings, and to provide a produced cast iron pipe with good quality and high product yield Thermal mold method centrifugal cast iron pipe casting mold coating with good economic benefit and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The thermoform centrifugal cast iron pipe mold coating in the present embodiment, it is made up of the raw material of following percentage by weight: kaolin 14%, diatomite clinker 14%, sodium bentonite 2%, talcum powder 2%, water 68% % (heating and boiling). The particle size of the diatomite clinker is 140 mesh, and the particle size of the sodium bentonite is 200 mesh.

[0020] The present embodiment produces the method for hot-molded centrifugal cast iron pipe mold coating, comprises the following steps: first kaolin, diatomaceous earth clinker, sodium bentonite and talcum powder are added in the mixing mill according to the above weight percentage and carry out dry mixing for 20 minutes , then add 1 / 4 of the water that is 68% by weight into the mixer, and then mix and grind for 20 minutes, and then mix and grind it into a hard paste material for storage; when in use, put the mixed hard paste material into the wheel In the mill mixer, add the remaining 3 / 4 of water...

Embodiment 2

[0022] The thermoform centrifugal cast iron pipe mold coating in the present embodiment, it is made up of the raw material of following percentage by weight: kaolin 15%, diatomite clinker 15%, sodium bentonite 2.5%, talcum powder 2.5%, water 65% % (heating and boiling). The particle size of the diatomite clinker is 200 mesh, and the particle size of the sodium bentonite is 270 mesh.

[0023] The present embodiment produces the method for hot-molded centrifugal cast iron pipe mold coating, comprises the following steps: first kaolin, diatomite clinker, sodium-based bentonite and talcum powder are added in the mixing mill according to the above-mentioned weight percentage and carry out dry mixing for 30 minutes , then add 1 / 4 of the water that is 65% by weight into the mixer, and then mix and grind for 30 minutes, then mix and grind it into a hard paste material for storage; when in use, put the mixed hard paste material into the wheel In the mill mixer, add the remaining 3 / 4 o...

Embodiment 3

[0025] The thermoform centrifugal cast iron pipe mold coating in the present embodiment, it is made up of the raw material of following percentage by weight: kaolin 16%, diatomite clinker 16%, sodium bentonite 2%, talcum powder 2%, water 64% % (heating and boiling). The particle size of the diatomite clinker is 270 mesh, and the particle size of the sodium bentonite is 270 mesh.

[0026] The present embodiment produces the method for hot-molded centrifugal cast iron pipe mold coating, comprises the following steps: first kaolin, diatomite clinker, sodium-based bentonite and talcum powder are added in the mixing mill according to the above-mentioned weight percentage and carry out dry mixing for 40 minutes , then add 1 / 4 of the water of 64% by weight into the mixer, and then mix and grind for 40 minutes, mix and grind into a hard paste material for storage for later use; when in use, put the mixed hard paste material into the wheel In the mill mixer, add the remaining three-qu...

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Abstract

The invention relates to a hot mould centrifugal cast iron pipe mold paint and a preparation method thereof. The invention mainly solves the technical difficulties of poor quality and low yield and poor economic benefit of a cast iron pipe produced by the traditional paint. The technical scheme is achieved as follows: the hot mould centrifugal cast iron pipe mold paint comprises the following components in percentage by weight: 14-16 percent of kaoline, 14-16 percent of burned diatomite, 2-4 percent of sodium base bentonite, 2-3.5 percent of talcpowder and 64-68 percent of water. The preparation method comprises the following steps: firstly, adding the kaoline, the burned diatomite, the sodium base bentonite and the talcpowder in percentage by weight into a mixing pan for dry mixing; secondly, adding 1 / 4 of water with weight percentage of 64-68 percent into the mixing pan; thirdly, mixing and rolling into a hard paste material for storage for later use; fourthly, when in use, putting the material into a wheel-rolling mixer, adding the left 3 / 4 of water into the wheel-rolling mixer for mixing-rolling and obtaining the mold paint when the concentration reaches 1.2.

Description

technical field [0001] The invention relates to a thermal mold method centrifugal cast iron pipe mold coating and a preparation method thereof, which belongs to a thermal mold method for producing a centrifugal cast iron pipe mold coating and a preparation method thereof. Background technique [0002] Coating quality is a key factor related to the quality of cast iron pipes. Improper coating preparation often causes defects such as pinholes, depressions, white spots, difficult demoulding, and rough surfaces on the surface of cast iron pipes. Seriously affect the yield of products and the economic benefits of enterprises. At present, the mold coating used in the production of cast iron pipes is ordinary diatomite coating. Due to the poor properties of these coatings, they have the disadvantages of poor quality of cast iron pipes produced, low yield of products and poor economic benefits. Contents of the invention [0003] The purpose of the present invention is to solve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D13/10B22C3/00
Inventor 赵金有
Owner 绛县恒通铸造有限公司
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