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Preparation method of composite coating for garbage incinerator
The invention relates to a preparation method of a composite coating for a garbage incinerator, and belongs to the technical field of new material surface protection. The method comprises the following steps: step 1, surface purification: removing greasy dirt and impurities on the surface by adopting a flame baking mode; step 2, roughening treatment: spraying carborundum, wherein the cleanliness reaches Sa3 level, and the surface roughness reaches Rz25-Rz100; step3, thermal spraying: spraying metal powder on a membrane type wall through high velocity oxy-fuel; step 4, surface cleaning: blowingaway ash on the metal coating with dried compressed air; step 5, high-pressure airless spraying: spraying a layer of high-temperature molten salt corrosion resistant ceramic slurry on the metal coating; step 6, curing of a ceramic coating: curing for 48 hours at the normal temperature; and step 7, heating: heating to 300 DEG C or above, and sintering to obtain the compact ceramic coating.
本发明涉及一种用于垃圾焚烧炉复合涂层的制备方法,属于新材料表面防护技术领域。其步骤如下:第一步:表面净化,采取火焰烘烤方式去除表面油污杂质;第二步:粗化处理,喷金刚砂,清洁度Sa3级,表面粗糙度达到Rz25‑Rz100;第三步:热喷涂,在膜式壁上超音速火焰喷涂金属粉末;第四步:清理表面,使用经过干燥的压缩空气吹净金属涂层上的灰烬;第五步:高压无气喷涂,在金属涂层上喷涂一层耐高温熔盐腐蚀陶瓷浆料;第六步:陶瓷涂层固化,常温下固化48小时;第七步:升温至300℃以上,烧结成致密陶瓷涂层。
Preparation method of composite coating for garbage incinerator
The invention relates to a preparation method of a composite coating for a garbage incinerator, and belongs to the technical field of new material surface protection. The method comprises the following steps: step 1, surface purification: removing greasy dirt and impurities on the surface by adopting a flame baking mode; step 2, roughening treatment: spraying carborundum, wherein the cleanliness reaches Sa3 level, and the surface roughness reaches Rz25-Rz100; step3, thermal spraying: spraying metal powder on a membrane type wall through high velocity oxy-fuel; step 4, surface cleaning: blowingaway ash on the metal coating with dried compressed air; step 5, high-pressure airless spraying: spraying a layer of high-temperature molten salt corrosion resistant ceramic slurry on the metal coating; step 6, curing of a ceramic coating: curing for 48 hours at the normal temperature; and step 7, heating: heating to 300 DEG C or above, and sintering to obtain the compact ceramic coating.
本发明涉及一种用于垃圾焚烧炉复合涂层的制备方法,属于新材料表面防护技术领域。其步骤如下:第一步:表面净化,采取火焰烘烤方式去除表面油污杂质;第二步:粗化处理,喷金刚砂,清洁度Sa3级,表面粗糙度达到Rz25‑Rz100;第三步:热喷涂,在膜式壁上超音速火焰喷涂金属粉末;第四步:清理表面,使用经过干燥的压缩空气吹净金属涂层上的灰烬;第五步:高压无气喷涂,在金属涂层上喷涂一层耐高温熔盐腐蚀陶瓷浆料;第六步:陶瓷涂层固化,常温下固化48小时;第七步:升温至300℃以上,烧结成致密陶瓷涂层。
Preparation method of composite coating for garbage incinerator
一种用于垃圾焚烧炉复合涂层的制备方法
25.12.2020
Patent
Elektronische Ressource
Chinesisch
Europäisches Patentamt | 2021
|Garbage incinerator of Glasgow, Scotland
Engineering Index Backfile | 1929