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Low-cost high-strength high-temperature-resistant coating material and preparation method thereof

A smear, low-cost technology, applied in the field of refractory materials, can solve the problem of inversion of cost and price, and achieve the effect of reducing the cost of ingredients, reducing costs, and improving low-temperature strength

Active Publication Date: 2016-11-09
上海彭浦特种耐火材料厂有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The unit price of such ingredients is about 2750 yuan (excluding tax), not including the production cost, but the current price is only about 1400 yuan (excluding tax), and the cost and selling price are seriously inverted.

Method used

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  • Low-cost high-strength high-temperature-resistant coating material and preparation method thereof
  • Low-cost high-strength high-temperature-resistant coating material and preparation method thereof
  • Low-cost high-strength high-temperature-resistant coating material and preparation method thereof

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Embodiment

[0036] Specific Examples 1-3 of the components of the present invention are shown in Table 2

[0037] Table 2 Proportion of low-cost, high-strength, high-temperature coating

[0038]

[0039] The origin of the early-strength pure calcium aluminate cement is Kaifeng, Henan, with Al2O3≥71%, and the origin and composition of other raw materials are the same as above.

[0040] ①Sampling method

[0041] Ingredients: Ingredients according to the ratio in Table 2 above, and mix them evenly in the mixing pot.

[0042] Sample preparation: add 11.5% (wt) water, stir in a stirring pot for about 2 to 3 minutes, vibrate and cast to make a sample of 160×40×40mm, natural curing for 1 day after demoulding.

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Abstract

The invention relates to a low-cost high-strength high-temperature-resistant fireproof coating material and a preparation method thereof. The coating material is characterized by comprising, by mass, 45 to 50% of grade-III high-alumina bauxite with a particle size of 5 to 1 mm, 10 to 15% of grade-I high-alumina bauxite with a particle size of 1 to 0 mm, 23 to 28% of grade-I high-alumina bauxite with a particle size of less than 180 meshes, 7 to 8% of pure calcium aluminate cement, 2 to 3% of silica micropowder, 2 to 3% of soft clay, 0.02 to 0.05% of an extra water reducer and 0.03 to 0.06% of an extra flocculating agent. According to the invention, through addition of the water reducer, water addition in construction of the coating material is greatly reduced, so the strength of the coating material is improved; through addition of the flocculating agent, water addition in construction of the coating material is not increased and the coating material with the water reducer is deprived of fluidity, so good coating properties are obtained; and through usage of early-strength cement with high content of a CA phase, the strength of the coating material is further improved.

Description

Technical field [0001] The invention relates to a low-cost, high-strength, high-temperature-resistant coating material and a preparation method thereof, and belongs to the field of refractory materials. Background technique [0002] The refractory coating material is manually applied to the furnace wall after adding water and stirring. Some construction furnace walls must be 90 degrees vertical, so the refractory coating material must not have a little fluidity, otherwise it will easily slip off during construction on the vertical furnace wall. Therefore, no water reducing agent can be added to the refractory coating. [0003] One of the applicants already has a high-aluminum refractory coating material for Baosteel. When the index was originally formulated, it was set as a high-aluminum refractory castable. The main indexes are shown in Table 1: [0004] Table 1 Refractory coating index formulated by Baosteel [0005] [0006] However, spreading material and castable are completely ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
CPCC04B35/66
Inventor 高仁骧陆兆鑫蓝振华赵玲娣王礼玮
Owner 上海彭浦特种耐火材料厂有限公司
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