Remover for removing iron contaminants on surface of high temperature alloy part after shot blasting and removal method
A technology of superalloy and removing agent, applied in the field of iron pollutant removal, can solve the problems of high removal cost, difficult removal of iron pollutants, etc., and achieve the effect of low price
Inactive Publication Date: 2016-08-17
CHINA HANGFA SOUTH IND CO LTD
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- Abstract
- Description
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- Application Information
AI Technical Summary
Problems solved by technology
[0004] The present invention provides a remover and method for removing iron pollutants on the surface of high-temperature alloy parts after shot peening, so as to solve the problem of difficult removal of iron pollutants on the surface of parts after shot peening , remove costly technical issues
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0043] Prepare the remover at the ratio of 25% citric acid and 75% water.
[0044] Soak the turbine disk to be cleaned in the remover for 30 minutes at normal temperature.
[0045] After taking out the turbine blades, rinse them with running water and dry them with compressed air.
Embodiment 2
[0047] Prepare the remover according to the ratio of 28% citric acid and 72% water.
[0048] Soak the turbine disk to be cleaned in the remover for 35 minutes at normal temperature.
[0049] After taking out the turbine blades, rinse them with running water and dry them with compressed air.
Embodiment 3
[0051] Prepare the remover according to the ratio of 30% citric acid and 70% water.
[0052] Make the remover and talcum powder into a slurry, adhere to the mortise of the turbine blade, and keep it at room temperature for 40 minutes.
[0053]After washing the turbine blades with running water, dry them with compressed air.
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The invention discloses a remover for removing iron contaminants on the surface of a high temperature alloy part after shot blasting. The remover is prepared from 25%-30% by mass of citric acid and 70%-75% by mass of water. According to the remover for removing the iron contaminants on the surface of the high temperature alloy part after shot blasting, iron in the iron contaminants is subjected to a reaction with citric acid in the remover, water-soluble Fe3(C6H5O7)2 is generated, and the iron contaminants can be removed through water washing. Citric acid is a common chemical agent and is low in cost. The remover for removing the iron contaminants on the surface of the high temperature alloy part after shot blasting can effectively remove the iron contaminants on the surface of the part after shot blasting and is low in cost.
Description
technical field [0001] The invention relates to the field of removal of iron pollutants, in particular to a remover of iron pollutants on the surface of superalloy parts after shot peening. In addition, the invention also relates to a method for removing iron pollutants on the surface of parts after shot peening. Background technique [0002] There is iron shot spraying process in the production process of aero-engine parts. A layer of iron pollutants will adhere to the surface of the parts sprayed with iron shot, which is gray-black. It cannot be removed by cleaning with water-based cleaning agent or petroleum solvent. The common The acid will cause corrosion on the surface of the part, and there will be hydrogen residue on the surface of the part. If this layer of iron contamination is not removed, the part will develop surface corrosion during subsequent processing. [0003] At present, there is no suitable cleaning agent formula in China. Our factory has introduced Fre...
Claims
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IPC IPC(8): C23F1/44C23F1/28
CPCC23F1/44C23F1/28
Inventor 金欢李璇潘柳吴涛徐小平
Owner CHINA HANGFA SOUTH IND CO LTD