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Aeroengine turbine guide vane polishing protection wax and polishing method

A technology for turbine guide vanes and aero-engines, which is used in grinding/polishing equipment, chemical instruments and methods, and grinding machines. , good plasticity and adhesion, suitable physical and chemical properties

Active Publication Date: 2014-03-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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

Method used

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  • Aeroengine turbine guide vane polishing protection wax and polishing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0031] Embodiment: (below all represent by weight percentage)

[0032] experiment method

[0033] The following test methods are the usual 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°C, penetration 201 / 10mm (Nanchong Oil Refinery) 45%

[0040] Refined hydrogenated rosin, softening point ≥ 78.0°C (Zhuzhou Matsumoto Forestry Co., Ltd.) 20%

[0041] Polyisobutylene, average molecular weight 1233 (Jinzhou Jinglian Lubricating Oil Additive Co., Ltd.) 10%

[0042] Soft microcrystalline wax, dropping point 59.0°C, penetration 851 / 10mm (Hebei Feitian Petrochemical Co., Ltd.) 25%

Embodiment 2

[0044] 80 # Microcrystalline wax, drop melting point 81.6°C, penetration 131 / 10mm (Jingmen Oil Refinery) 5%

[0045] 75 # Microcrystalline wax, drop melting point 76.2°C, penetration 201 / 10mm (Nanchong Oil Refinery) 38%

[0046] Refined hydrogenated rosin, softening point ≥ 78.0°C (Zhuzhou Matsumoto Forestry Co., Ltd.) 19%

[0047] Polyisobutylene, average molecular weight 1233 (Jinzhou Jinglian Lubricating Oil Additive Co., Ltd.) 13%

[0048] Soft microcrystalline wax, dropping point 59.0°C, penetration 851 / 10mm (Hebei Feitian Petrochemical Co., Ltd.) 25%

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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 and a polishing method for an aeroengine turbine guide vane, and is particularly suitable for protecting the blade air guide hole during the polishing process of the aeroengine turbine guide vane. Background technique [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 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 in the working environment and can be completely removed after grinding. , to avoid adverse effects on the next process. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09G1/10B24B19/14
Inventor 李尚勇李莉郭慧兵
Owner CHINA PETROLEUM & CHEM CORP
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