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A platform for research: civil engineering, architecture and urbanism
Non-vacuum annealing method for large titanium casting
The invention discloses a non-vacuum annealing method for a large titanium casting. The method comprises the following steps that sand blasting treatment is carried out on the surface of the large titanium casting; an anti-oxidation coating with a certain thickness is formed on the surface of the large titanium casting, after drying for a period of time, the large titanium casting with the anti-oxidation coating is put into a box body, and a box door is closed, wherein the box body is made of a heat conduction material, and an air inlet and an exhaust valve are reserved in the box body; the air inlet of the box body is filled with argon until a cavity of the whole box body is filled with the argon, and the air inlet of the box body is sealed; the whole box body filled with the titanium casting is put into an atmospheric annealing furnace for a heat treatment process; and after heat treatment is completed, the titanium casting is taken out, and the anti-oxidation coating on the surfaceof the titanium casting is cleaned away. According to the scheme, coating treatment is carried out on the surface of the large titanium casting, in combination with argon protection treatment, stressrelief annealing of the large titanium casting can be achieved by adopting the conventional atmospheric annealing furnace, the production cost is reduced, and meanwhile, the titanium casting can be prevented from being oxidized in an atmospheric high-temperature environment.
一种大型钛铸件的非真空退火方法,步骤如下：对大型钛铸件的表面进行喷砂处理；在大型钛铸件的表面形成一定厚度的防氧化涂层，干燥一段时间后；将带有防氧化涂层的大型钛铸件放入箱体内，封闭箱门，箱体材质选用可导热材质，箱体上预留有进气孔和排气阀；在箱体的进气孔充入氩气，直至氩气充满整个箱体空腔，封闭箱体的进气孔；将装入钛铸件的整个箱体装入大气退火炉内进行热处理工序；热处理完成后，取出钛铸件,清理钛铸件表面的防氧化涂料，完成。本方案通过对大型钛铸件表面进行涂层处理并结合氩气保护处理，使得采用常规大气退火炉就可以实现大型钛铸件的消应力退火，降低了生产成本，同时可避免钛铸件在大气高温环境下的氧化。
Non-vacuum annealing method for large titanium casting
The invention discloses a non-vacuum annealing method for a large titanium casting. The method comprises the following steps that sand blasting treatment is carried out on the surface of the large titanium casting; an anti-oxidation coating with a certain thickness is formed on the surface of the large titanium casting, after drying for a period of time, the large titanium casting with the anti-oxidation coating is put into a box body, and a box door is closed, wherein the box body is made of a heat conduction material, and an air inlet and an exhaust valve are reserved in the box body; the air inlet of the box body is filled with argon until a cavity of the whole box body is filled with the argon, and the air inlet of the box body is sealed; the whole box body filled with the titanium casting is put into an atmospheric annealing furnace for a heat treatment process; and after heat treatment is completed, the titanium casting is taken out, and the anti-oxidation coating on the surfaceof the titanium casting is cleaned away. According to the scheme, coating treatment is carried out on the surface of the large titanium casting, in combination with argon protection treatment, stressrelief annealing of the large titanium casting can be achieved by adopting the conventional atmospheric annealing furnace, the production cost is reduced, and meanwhile, the titanium casting can be prevented from being oxidized in an atmospheric high-temperature environment.
一种大型钛铸件的非真空退火方法,步骤如下：对大型钛铸件的表面进行喷砂处理；在大型钛铸件的表面形成一定厚度的防氧化涂层，干燥一段时间后；将带有防氧化涂层的大型钛铸件放入箱体内，封闭箱门，箱体材质选用可导热材质，箱体上预留有进气孔和排气阀；在箱体的进气孔充入氩气，直至氩气充满整个箱体空腔，封闭箱体的进气孔；将装入钛铸件的整个箱体装入大气退火炉内进行热处理工序；热处理完成后，取出钛铸件,清理钛铸件表面的防氧化涂料，完成。本方案通过对大型钛铸件表面进行涂层处理并结合氩气保护处理，使得采用常规大气退火炉就可以实现大型钛铸件的消应力退火，降低了生产成本，同时可避免钛铸件在大气高温环境下的氧化。
Non-vacuum annealing method for large titanium casting
一种大型钛铸件的非真空退火方法
CHEN LINGJIE (author)
2020-12-25
Patent
Electronic Resource
Chinese
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