Organic-inorganic composite wear-resistant coating

An inorganic composite and smear technology, applied in the smear field, can solve the problems of complex shape, insufficient baking temperature and high production cost, and achieve the effects of enhanced mechanical properties, good smearing performance, and good wear resistance.

Active Publication Date: 2011-04-27
ANHUI RUITAI NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In production, we often encounter equipment that needs wear-resistant treatment on the surface, such as the low-temperature exhaust pipe of the new cement dry kiln grate cooler, and the airflow temperature of the exhaust pipe of the dryer is less than 450 ℃, and it contains a lot of dust. Therefore, surface wear-resistant treatment must be adopted. The temperature of these devices is not high, but the shape is complex, and the space reserved for installing wear-resistant materials during design is also very limited. If metal wear-resistant materials are used, not only the production cost is high, but the wear resistance is low. Replaceable, poor maintainability, etc.
If cement-bonded castables are used, construction cannot be performed because the lining is too thin; if cement-bonded smears are used, it is difficult to smear the top and side walls; if phosphate-bonded smears are used, the baking temperature is not enough, Unable to form a stable aluminum orthophosphate binding phase, thus affecting the life of the lining

Method used

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  • Organic-inorganic composite wear-resistant coating

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Prepare according to the following recipe:

[0030] 5% of waste porcelain with a diameter of 3-5mm;

[0031] Waste porcelain materials with a diameter of 1-3mm 23%;

[0032] Waste porcelain with a diameter of 0.088 ~ 1mm 20%;

[0033] 200 mesh brown corundum fine powder 20%;

[0034] 800 mesh bauxite powder 8%;

[0035] Silica fume 8%;

[0036] High alumina cement 12%;

[0037] 15mm heat-resistant steel fiber 4%;

[0038] Wherein, Al in the waste porcelain material 2 o 3 The weight percentage content is 35%; Further, in above-mentioned raw material, add and account for the sodium tripolyphosphate of 0.15% of total weight, account for the polyacrylic acid emulsion of 5% of total weight, account for the bentonite of 0.5% of total weight and account for 3% of total weight % water, wherein the polyacrylic acid emulsion has a solid content of 50%, and the above raw materials are fully stirred evenly to obtain the organic-inorganic composite wear-resistant smear mater...

Embodiment 2

[0040] Prepare according to the following recipe:

[0041] 5% of waste porcelain with a diameter of 3-5mm;

[0042] Waste porcelain with a diameter of 1-3mm 24%;

[0043] Waste porcelain with a diameter of 0.088 ~ 1mm 20%;

[0044] 200 mesh brown corundum fine powder 17%;

[0045] 800 mesh bauxite powder 7%;

[0046] Silica fume 8%;

[0047] High alumina cement 15%;

[0048] 15mm heat-resistant steel fiber 4%;

[0049] Wherein, Al in the waste porcelain material 2 o 3 The weight percentage content is 35%; further, in the above raw materials, add 1% of the total weight of calcium hydroxide powder with a diameter of less than 0.2mm, 0.1% of the total weight of polycarboxylate superplasticizer, and 0.1% of the total weight 5% polyacrylic acid emulsion by weight, 0.5% bentonite and 3% water by total weight, wherein the polyacrylic acid emulsion has a solid content of 50%, and the above raw materials are fully stirred to obtain the present invention. The above-mentioned or...

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Abstract

The invention discloses an organic-inorganic composite wear-resistant coating, which is mainly used for intermediate and low-temperature equipment with requirements on wear resistance. The coating which has high high-temperature property and is quickly coagulated and hardened is prepared by quick reaction between polyacrylic acid series emulsion and calcium ions released through hydration of cement, wherein waste porcelain is used as aggregate; brown fused alumina or bauxite is used as a base material; siliceous dust and alumina micro powder are added; steel fibers are used as a reinforcing agent; and aluminate cement and the polyacrylic acid series emulsion are used as bonding agents. The coating has high spreadability, high intensity and high wear resistance.

Description

technical field [0001] The invention relates to a coating material, more specifically, a wear-resistant organic-inorganic composite coating material. Background technique [0002] In production, we often encounter equipment that needs wear-resistant treatment on the surface, such as the low-temperature exhaust pipe of the new cement dry kiln grate cooler, and the airflow temperature of the exhaust pipe of the dryer is less than 450 ℃, and it contains a lot of dust. Therefore, surface wear-resistant treatment must be adopted. The temperature of these devices is not high, but the shape is complex, and the space reserved for installing wear-resistant materials during design is also very limited. If metal wear-resistant materials are used, not only the production cost is high, but the wear resistance is low. Replaceable, easy to maintain, etc. If cement-bonded castables are used, construction cannot be performed because the lining is too thin; if cement-bonded smears are used, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06
CPCC04B28/06Y02W30/91C04B14/303C04B14/48C04B18/146C04B18/165C04B20/0076C04B24/2641C04B20/008
Inventor 张金龙李存弼陈雪峰周键王杰曾
Owner ANHUI RUITAI NEW MATERIALS TECH
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