Aeroengine turbine guide vane polishing protection wax and polishing method
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A technology for turbine guide vanes and aero-engines, applied in grinding/polishing equipment, chemical instruments and methods, grinding machines, etc. It can solve the problems of scrapped parts, small air guide holes, and inability to wash off debris, so as to facilitate scraping and coating , Good plasticity and adhesion, suitable physical and chemical properties
Active Publication Date: 2012-05-16
CHINA PETROLEUM & CHEM CORP +1
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[0002] When the aero-engine turbine guide vanes are produced, they are casted by a mold first, and then further processed and polished by a grinder. In this way, metal debris will often fall into the air guide holes of the blades and block the holes, because the air guide holes are small and curved. The debris cannot be completely washed off, and parts will be scrapped in severe cases
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[0031] Example: (the following are all expressed in weight percent)
[0032] experiment method
[0033] The following test methods are common methods for testing petroleum products used in the examples.
[0034] Softening point GB / T4507
[0035] Penetration GB / T 4985
[0036] Kinematic viscosity GB / T265
Embodiment 1
[0039] 75 # Microcrystalline wax, drop melting point 76.2℃, penetration 201 / 10mm (Nanchong Oil Refinery) 45%
[0040] Refined hydrogenated rosin, softening point ≥78.0℃ (Zhuzhou Matsumoto Forest Chemical Co., Ltd.) 20%
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Abstract
The invention discloses aeroengine turbine guide vane polishing protection wax and a polishing method. The aeroengine turbine guide vane polishing protection wax is prepared from petroleum wax, abietic resin, hydrocarbon cream, a butylene polymer and the like by mixing processing according to a specific ratio. The aeroengine turbine guide vane polishing protection wax has good plasticity, good adhesiveness, appropriate physical and chemical performances and excellent use performances, is convenient for knife coating, can be removed easily, does not produce corrosion, toxins and pollution, and is environmentally friendly. The polishing method adopting the aeroengine turbine guide vane polishing protection wax comprises the following steps of protecting an air-guiding hole of a turbine guide vane by the aeroengine turbine guide vane polishing protection wax, carrying out polishing processing, and then removing the aeroengine turbine guide vane polishing protection wax. The polishing method can effectively prevent that metal chips block the air-guiding hole in turbine guide vane polishing.
Description
technical field [0001] The invention relates to a polishing protection wax for aero-engine turbine guide blades and a polishing method, and is particularly suitable for protecting the blade air guide holes in the polishing process of aero-engine turbine guide blades. Background technique [0002] When the aero-engine turbine guide vanes are made, they are first cast out of a mold, and then further processed and polished by a grinder. In this way, metal chips often fall into the air guide holes of the blades to block the holes, because the air guide holes are small and curved. The debris cannot be completely washed away, and in severe cases, parts will be scrapped. For this reason, it is necessary to protect the hole with a material before grinding to prevent debris from entering, so as to ensure that the turbine guide vanes are well protected under the working environment and can be completely removed after grinding. , to avoid adverse effects on the next process. SUMMARY...
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