Alcohol based ceramic casting coating

A technology for casting coatings and ceramics, applied in casting molding equipment, coatings, molds, etc., can solve the problems of inability to meet the low-cost requirements of small and medium-sized foundries, and the high price of zircon powder coatings, and achieve good sintering and peeling characteristics. Enhanced peeling effect and good anti-stick sand performance

Active Publication Date: 2016-09-14
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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  • Alcohol based ceramic casting coating
  • Alcohol based ceramic casting coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An alcohol-based ceramic casting paint, which consists 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, and 10 kg of rosin , 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 alcohol-based ceramic casting paint, which consists 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, and 11 kg of rosin , 3 kg of ethyl silicate, 2 kg of Tween 80, and 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 alcohol-based ceramic casting paint, which consists of the following components by weight: 290 kilograms of high-alumina powder, 110 kilograms of silicon powder, 38 kilograms of potassium feldspar powder, 190 kilograms of pyrophyllite powder, 22 kilograms of magnesium aluminum silicate, and 9 kilograms of rosin , 5 kg of ethyl silicate, 80 kg of Tween, and 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 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 inner cavity of the cast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C3/00
CPCB22C3/00
Inventor 刘聪张保军
Owner TIANJIN NINGKANG TECH
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