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Anti-seepage burnon casting paint made from alcohol base or aqueous sand powder

A casting coating, anti-penetration technology, applied in casting molding equipment, coatings, molds, etc., can solve the problems of high production cost, troublesome operation, wide application restrictions, etc., and achieve the effect of excellent anti-penetration and sticking effect.

Inactive Publication Date: 2005-09-14
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the effect of this process is good, the operation is troublesome, the labor intensity is high, and the production cost is also high, so the wide application is limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Embodiment 1: Alcohol-based coating formula

[0057] 1. Refractory aggregate:

[0058] 55 / 75 mesh chromite sand 10kg

[0059] 75 / 150 mesh chromite sand 5kg

[0060] 100 / 200 mesh chrome corundum sand 10kg

[0061] 200 / 260 mesh magnesia 5kg

[0062] 325 mesh chromite powder 15kg

[0063] 325 mesh magnesia powder 15kg

[0064] 325 mesh brown corundum powder 15kg

[0065] 325 mesh zircon powder 25kg

[0066] 2. Suspending agent:

[0067] Organic bentonite 3kg

[0068] 3. Binder

[0069] Alcohol phenolic resin 7kg

[0070] 4. Thickener

[0071] Polyvinyl butyral 0.2kg

[0072] 5. Carrier:

[0073] 40kg of ethanol, or methanol, or ethylene-propanol, or their mixture in any proportion.

Embodiment 2

[0074] Embodiment 2: Alcohol-based paint formula:

[0075] 1. Refractory aggregate

[0076] 75 / 150 mesh chromite sand 30kg

[0077] 100 / 200 mesh chrome corundum sand 30kg

[0078] 200 / 260 mesh zircon sand 30kg

[0079] 325 mesh zircon powder 3kg

[0080] 325 mesh brown corundum powder 4kg

[0081] 325 mesh chromite powder 3kg

[0082] 2. Suspending agent

[0083] Lithium bentonite 4kg

[0084] Sodium bentonite 4kg

[0085] 3. Binder

[0086] Aldol phenolic resin 1.5kg

[0087] Rosin 1.5kg

[0088] 4. Thickener

[0089] Polyvinyl butyral 1.0kg

[0090] 5. Carrier

[0091] Methanol, or ethanol, or ethylene-propanol, or their mixture in any proportion: 35kg.

Embodiment 3

[0092] Embodiment 3: Alcohol-based paint formula:

[0093] 1. Refractory aggregate

[0094] 75 / 150 mesh chromite sand 15kg

[0095] 100 / 200 mesh chromite sand 15kg

[0096] 200 / 260 mesh chromite sand 10kg

[0097] 200 / 260 mesh brown corundum sand 10kg

[0098] 325 mesh bauxite powder 10kg

[0099] 325 mesh chrome corundum powder 20kg

[0100] 325 mesh zircon powder 20kg

[0101]2. Suspending agent

[0102] Lithium bentonite 1kg

[0103] Organic bentonite 2kg

[0104] Latto stone 2kg

[0105] 3. Binder

[0106] Aldol phenolic resin 3.5kg

[0107] Rosin 1.5kg

[0108] 4. Thickener

[0109] Polyvinyl butyral 0.4kg

[0110] 5. Carrier

[0111] Methanol, or ethanol, or ethylene-propanol, or a mixture of them in any proportion: 37kg.

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Abstract

The invention relates to the melting coating of alcohol-base or water-base anti-penetrating sands, which uses the fireproofing bone materials, the floating agent, the felting agent, the reinforcing agent and the carrier as the preparing coating. The weight shares of the said coating are: 100,3-8,3-7,0.2-1.0 and 30-40. The invention uses chrome iron minerals as the main materials and is prior to any kinds of the traditional coating.

Description

Technical field: [0001] The invention relates to a coating, in particular to an alcohol-based or water-based sand powder anti-penetration sticky sand casting coating for thick and large steel castings. Background technique [0002] Due to the large tonnage and wall thickness of the poured molten steel, the molten steel remains liquid for a long time, and the molten steel on the surface is easily oxidized, which easily produces penetration and sticky sand defects. The formed iron-coated sand and sand-coated iron bring great difficulties to the cleaning of steel castings, and cannot be cleaned up at all by general mechanical cleaning methods. Only acetylene flame gas cutting and iron bar "melting washing" can be used. This method takes a long time, and the casting is baked under high heat for a long time, resulting in great thermal stress, making the structure brittle, and even causing cracks, which affects the quality of the casting. Bigger trouble. Therefore, in the produc...

Claims

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Application Information

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IPC IPC(8): B22C3/00
Inventor 张友寿黄晋夏露李四年
Owner HUBEI UNIV OF TECH
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