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Sand blasted surface protective film and protective method for engine metal shell

A metal shell and engine technology, applied in the field of protective film, can solve the problem of not finding a temporary protection method for sandblasting parts, and achieve the effects of good oil separation, effective protection and easy control.

Active Publication Date: 2013-09-04
中国航天科工集团第二研究院二一〇所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Searching the domestic patents of the State Intellectual Property Office and linked foreign patent institutions through the Internet, no relevant information on effective temporary protection methods for sandblasting parts was found

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] The first engine, number 2010-02, the operation steps are as follows:

[0066] a) dissolve

[0067] Take 100 parts of butyl rubber, 1 part of dicumyl peroxide, 2 parts of zinc oxide, 2 parts of carbon black, 1.5 parts of magnesium oxide, and 100 parts of acetone, place them in a closed container, dissolve them for 15 days, and stir them evenly to obtain F -10 peelable paint ready to use.

[0068] b) cleaning

[0069] 1) Use 80# sandpaper to polish the surface defects of the engine;

[0070] 2) Compressed air blows off the floating sand on the outer surface of the engine casing;

[0071] 3) Spray aviation washing gasoline on the outer surface of the engine casing with a spray gun and then scrub with cotton cloth;

[0072] 4) Scrub the outer surface of the engine casing with acetone until it is free of oil and dirt.

[0073] c) Ingredients

[0074] 1) Stir the F-10 peelable coating evenly, take it out and pour it into the container;

[0075] 2) According to the rat...

Embodiment 2

[0093] The second engine, number 2010-04, the operation steps are as follows:

[0094] a) dissolve

[0095] Take 100 parts of butyl rubber, 1.5 parts of dicumyl peroxide, 2.5 parts of zinc oxide, 3 parts of carbon black, 1.7 parts of magnesium oxide, and 100 parts of acetone, place them in a closed container, dissolve them for 15 days, and stir them evenly to obtain F -10 peelable paint ready to use.

[0096] b) cleaning

[0097] 1) Use 80# sandpaper to polish the surface defects of the engine;

[0098] 2) Compressed air blows off the floating sand on the outer surface of the engine casing;

[0099] 3) Spray aviation washing gasoline on the outer surface of the engine casing with a spray gun and then scrub with cotton cloth;

[0100] 4) Scrub the outer surface of the engine casing with acetone until it is free of oil and dirt.

[0101] c) Ingredients

[0102] 1) Stir the F-10 peelable coating evenly, take it out and pour it into the container;

[0103] 2) According to t...

Embodiment 3

[0121] The third engine, number 2010-05, the operation steps are as follows:

[0122] a) dissolve

[0123] Take 100 parts of butyl rubber, 2 parts of dicumyl peroxide, 2 parts of zinc oxide, 4 parts of carbon black, 2 parts of magnesium oxide, and 100 parts of acetone, place them in a closed container, dissolve them for 15 days, and stir them evenly to obtain F -10 peelable paint ready to use.

[0124] b) cleaning

[0125] 1) Use 80# sandpaper to polish the surface defects of the engine;

[0126] 2) Compressed air blows off the floating sand on the outer surface of the engine casing;

[0127] 3) Spray aviation washing gasoline on the outer surface of the engine casing with a spray gun and then scrub with cotton cloth;

[0128] 4) Scrub the outer surface of the engine casing with acetone until it is free of oil and dirt.

[0129] c) Ingredients

[0130] 1) Stir the F-10 peelable coating evenly, take it out and pour it into the container;

[0131] 2) According to the rati...

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Abstract

The invention discloses a sand blasted surface protective film and a sand blasted surface protective method for an engine metal shell. The method comprises the following steps of: dissolving butyl rubber, dicumyl peroxide, zinc oxide, carbon black, magnesium oxide and acetone, and stirring the solution to obtain a protective film material; cleaning the outer surface of a product, and stirring the protective film material, acetone and aviation washing gasoline uniformly to obtain an accessory; spraying a protective film layer on the surface of the metal shell by using the accessory, and curing the protective film layer to form a peelable film layer; and removing the peelable film layer on the surface of the engine in use, and cleaning the outer surface of the product for later use. The protective film can be used for isolating air or water, and can be quickly removed.

Description

technical field [0001] The invention relates to a protective film for quickly protecting the outer surface of an engine after sandblasting and a protective method thereof. Background technique [0002] The role of the engine's outer heat-resistant coating is to ensure that the engine has a certain strength and rigidity within the allowable temperature range, and to provide the necessary bearing capacity. The engine's outer heat-resistant coating plays a vital role in ensuring the safe flight of the engine. If the engine's outer heat-resistant coating fails, it will lead to a decrease in the structural strength of the engine and affect the safety of the engine. In order to ensure the adhesion between the outer heat-resistant coating and the engine substrate, the outer surface of the engine should be treated before construction. First, remove the scale and rust spots on the metal surface of the engine to expose the metallic luster on the surface. The removal methods include ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/22C08K13/02C08K5/14C08K3/22C08K3/04
Inventor 闫素芬周一博张新航张海鹏
Owner 中国航天科工集团第二研究院二一〇所
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