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A platform for research: civil engineering, architecture and urbanism
Preparation method of self-propagating corrosion-resistant and wear-resistant coating of boiler water-cooled wall
The invention relates to a preparation method of a self-propagating corrosion-resistant and wear-resistant coating for a boiler water-cooled wall, and belongs to the technical field of high-temperature protective coatings. The preparation method comprises the following steps: (1) ball-milling and mixing aluminum powder, ferric oxide powder, chromic oxide powder, zirconium dioxide micro powder, alumina fibers, a heat-conducting filler and a welding flux to prepare mixed powder; (2) uniformly mixing the mixed powder and a water glass binder to prepare suspension slurry; (3) carrying out sand blasting treatment on the surface of the boiler water-cooled wall; (4) manufacturing a pre-coating layer on the surface of the water cooling wall of the boiler; (5) manufacturing a water glass layer on the pre-coated coating; (6) igniting the magnesium rod to generate a self-propagating reaction to prepare a protective layer; and (7) the protective layer is removed, and the self-propagating corrosion-resistant and wear-resistant coating is prepared on the surface of the water cooling wall of The water glass is used as a binder to obtain a compact self-propagating corrosion-resistant and wear-resistant coating, and the self-propagating corrosion-resistant and wear-resistant coating is good in thermal conductivity, uniform in thickness, excellent in mechanical wear resistance and good in corrosion resistance.
本发明涉及一种用于锅炉水冷壁的自蔓延防腐耐磨涂层的制备方法，属于高温防护涂层技术领域。制备步骤如下：（1）将铝粉、三氧化二铁粉末、氧化铬粉末、二氧化锆微粉、氧化铝纤维、导热填料和焊剂球磨混合,制得混合粉末；（2）将混合粉末和水玻璃粘结剂混匀，制得悬浮浆料；（3）喷砂处理锅炉水冷壁表面；（4）在锅炉水冷壁表面制作预覆涂层；（5）在预覆涂层上制作水玻璃层；（6）引燃镁条发生自蔓延反应制得保护层；（7）清除保护层，在锅炉水冷壁表面制得自蔓延防腐耐磨涂层。所用水玻璃作为粘结剂获得致密自蔓延防腐耐磨涂层，且自蔓延防腐耐磨涂层导热性好、厚度均匀，具有优异的机械耐磨性能与良好的抗腐蚀作用。
Preparation method of self-propagating corrosion-resistant and wear-resistant coating of boiler water-cooled wall
The invention relates to a preparation method of a self-propagating corrosion-resistant and wear-resistant coating for a boiler water-cooled wall, and belongs to the technical field of high-temperature protective coatings. The preparation method comprises the following steps: (1) ball-milling and mixing aluminum powder, ferric oxide powder, chromic oxide powder, zirconium dioxide micro powder, alumina fibers, a heat-conducting filler and a welding flux to prepare mixed powder; (2) uniformly mixing the mixed powder and a water glass binder to prepare suspension slurry; (3) carrying out sand blasting treatment on the surface of the boiler water-cooled wall; (4) manufacturing a pre-coating layer on the surface of the water cooling wall of the boiler; (5) manufacturing a water glass layer on the pre-coated coating; (6) igniting the magnesium rod to generate a self-propagating reaction to prepare a protective layer; and (7) the protective layer is removed, and the self-propagating corrosion-resistant and wear-resistant coating is prepared on the surface of the water cooling wall of The water glass is used as a binder to obtain a compact self-propagating corrosion-resistant and wear-resistant coating, and the self-propagating corrosion-resistant and wear-resistant coating is good in thermal conductivity, uniform in thickness, excellent in mechanical wear resistance and good in corrosion resistance.
本发明涉及一种用于锅炉水冷壁的自蔓延防腐耐磨涂层的制备方法，属于高温防护涂层技术领域。制备步骤如下：（1）将铝粉、三氧化二铁粉末、氧化铬粉末、二氧化锆微粉、氧化铝纤维、导热填料和焊剂球磨混合,制得混合粉末；（2）将混合粉末和水玻璃粘结剂混匀，制得悬浮浆料；（3）喷砂处理锅炉水冷壁表面；（4）在锅炉水冷壁表面制作预覆涂层；（5）在预覆涂层上制作水玻璃层；（6）引燃镁条发生自蔓延反应制得保护层；（7）清除保护层，在锅炉水冷壁表面制得自蔓延防腐耐磨涂层。所用水玻璃作为粘结剂获得致密自蔓延防腐耐磨涂层，且自蔓延防腐耐磨涂层导热性好、厚度均匀，具有优异的机械耐磨性能与良好的抗腐蚀作用。
Preparation method of self-propagating corrosion-resistant and wear-resistant coating of boiler water-cooled wall
一种锅炉水冷壁的自蔓延防腐耐磨涂层的制备方法
HU YUEWEI (author) / HONG BIN (author) / WANG YANJUN (author) / QI XIANTIAN (author) / WANG ZHENYU (author) / ZHANG KAI (author) / WANG PEI (author) / ZHAO GANGLING (author) / WANG PING (author) / NIU XIAOMING (author)
2023-11-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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