Chemical method for clearing sealant and solution prepared by using chemical method

Abstract

The invention provides a chemical method for clearing sealant and solution prepared by using the chemical method and relates to the field of chemical clearing, in particular to the sealant clearing field. Liquid paraffin, methylbenzene, ethyl acetate, acetone, phenol, ethylalcohol and ammonia water are prepared into organic solution according to proportioning; the sealant which needs clearing is soaked in the solution or degreasing cotton soakage solution is applied on the surface of the sealant, the soak time is thirty minutes. After the sealant is softened, the degreasing cotton soakage solution can be eliminated. After the degreasing cotton soakage solution can be eliminated, deionized water is used for washing and compressed air is used for drying the parts. The chemical method can simply, rapidly, efficiently wipe the sealant on the surface of the parts; the prepared organic solution has no corrosion on the high-temperature alloy 4648, DZ4 and other high-temperature alloy materials referred to the parts.

Description

technical field [0001] The invention relates to the field of chemical cleaning, in particular to the field of sealant cleaning. Background technique [0002] After the assembly of the high-pressure turbine guide of the engine is completed, a leak test is required according to the requirements of the design drawing. This requires sealing the joints of the surface blades and the joints of the fixture. After sealing, put it into water to pressurize the guide cavity. Calculate the leakage amount after the time and pressure test. After the sealing test is completed, the sealant on the guide and the fixture must be removed. The workshop uses mechanical methods to shovel. Because the sealant is relatively hard, the shovel is not clean, the efficiency is low, and the guide will be damaged if you use too much force. The surface of the device part makes the mechanical method unusable. Contents of the invention [0003] It is an object of the present invention to provide a chemical ...

AI Technical Summary

Problems solved by technology

[0002] After the assembly of the high-pressure turbine guide of the engine is completed, a leak test needs to be carried out according to the requirements of the design drawing. This requires sealing the joints of the surface blades and the joints of the fixture. After sealing, put it into water to pressurize the guide cavity. Calculate the leakage amount after the tim...