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Environment-friendly alcohol group ceramic casting coating

A casting coating and environmental protection technology, applied in casting molding equipment, coatings, casting molds, etc., can solve the problems that zircon powder coatings are expensive and cannot meet the low-cost requirements of small and medium-sized foundries, and achieve good sintering peeling characteristics , enhanced peeling effect, and low raw material cost

Active Publication Date: 2015-03-25
TIANJIN NINGKANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, zircon powder coatings are expensive and cannot meet the low-cost requirements of small and medium-sized foundries

Method used

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  • Environment-friendly alcohol group ceramic casting coating
  • Environment-friendly alcohol group ceramic casting coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An environment-friendly alcohol-based ceramic casting coating is composed of the following components by weight: 250 kg of high-alumina powder, 150 kg of silicon powder, 30 kg of potassium feldspar powder, 175 kg of pyrophyllite powder, 25 kg of magnesium aluminum silicate, rosin 10 kg, 5 kg of ethyl silicate, 1 kg of Tween 80, and 280 kg of ethanol.

[0030] Wherein, the Al in the high aluminum powder 2 o 3 The mass percentage is greater than 80%, and the particle size is 325 mesh; the SiO in the silicon powder 2 The mass percentage is greater than 98%, and the particle size is 325 mesh; the AL in the pyrophyllite powder 2 o 3 The mass percentage is greater than 20%, and the particle size is 200 mesh.

Embodiment 2

[0032] An environment-friendly alcohol-based ceramic casting coating is composed of the following components by weight: 270 kg of high-alumina powder, 120 kg of silicon powder, 32 kg of potassium feldspar powder, 150 kg of pyrophyllite powder, 22 kg of magnesium aluminum silicate, rosin 11 kg, 3 kg of ethyl silicate, 80 kg of Tween, 250 kg of ethanol.

[0033] Wherein, the Al in the high aluminum powder 2 o 3 The mass percentage is greater than 80%, and the particle size is 325 mesh; the SiO in the silicon powder 2 The mass percentage is greater than 98%, and the particle size is 325 mesh; the AL in the pyrophyllite powder 2 o 3 The mass percentage is greater than 20%, and the particle size is 200 mesh.

Embodiment 3

[0035] An environment-friendly alcohol-based ceramic casting coating consists of the following components by weight: 290 kg of high-alumina powder, 110 kg of silicon powder, 38 kg of potassium feldspar powder, 190 kg of pyrophyllite powder, 22 kg of magnesium aluminum silicate, rosin 9 kg, 5 kg of ethyl silicate, 80 kg of Tween, 260 kg of ethanol.

[0036] Wherein, the Al in the high aluminum powder 2 o 3 The mass percentage is greater than 80%, and the particle size is 325 mesh; the SiO in the silicon powder 2 The mass percentage is greater than 98%, and the particle size is 325 mesh; the AL in the pyrophyllite powder 2 o 3 The mass percentage is greater than 20%, and the particle size is 200 mesh.

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Abstract

The invention provides an environment-friendly alcohol group ceramic casting coating. The environment-friendly alcohol group ceramic casting coating comprises, by weight, 250-350 parts of high-alumina powder, 50-150 parts of silica powder, 150-200 parts of pyrophillite powder, 30-50 parts of cosolvent, 20-30 parts of suspending agents, 8-15 parts of binding agents, 1-3 parts of surfactant and 250-350 parts of solvent. The environment-friendly alcohol group ceramic casting coating overcomes the defects in the prior art and is high in refractoriness, good in sintering stripping effect, low in price and excellent in comprehensive performance.

Description

technical field [0001] The invention relates to the field of casting, in particular to an environment-friendly alcohol-based ceramic casting coating. Background technique [0002] Foundry coatings refer to casting auxiliary materials that are coated on the surface of the cavity or sand core to change their refractoriness, chemical stability, sand resistance and other properties. Casting coatings mostly use high refractory powder to improve the refractory performance of the cavity or grinding wheel. However, because of the high refractoriness, the coating is easy to form a low-melting point phase during pouring, and the original powder is used throughout the casting process. The state exists, so that the molten iron penetrates into the shallow surface layer of the coating, resulting in powder sticking of the casting. The sticky powder is extremely difficult to clean and can only be removed by grinding, which will bring a very large workload to the later cleaning, and the inn...

Claims

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Application Information

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IPC IPC(8): B22C3/00
CPCB22C3/00
Inventor 刘聪张保军
Owner TIANJIN NINGKANG TECH
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