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Aircraft gasbag material non-coating surface welding machining method

A processing method and aircraft technology, which can be applied to household components, household appliances, and other household appliances, etc., can solve problems such as difficult bonding, bonding strength, processing quality, and failure to meet design requirements.

Inactive Publication Date: 2018-01-09
宝鸡市铭坤有色金属有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the sewing process is adopted, stress concentration will occur when the sewing stitches are under the high pressure of the capsule body, which will reduce the overall strength of the capsule body and the airtightness of the material will be reduced; if the bonding process is adopted, the glue will be affected by the environment It is too large, and it is impossible to control the ambient temperature and humidity of the large aircraft processing workshop when processing large airbags, and it is not easy to stick flat. For the processing problem, it is necessary to invent a processing method that can make each capsule valve butt joint into a whole and meet the design strength and airtightness requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A control method of titanium alloy welding deformation of the present invention, specifically comprises the following steps:

[0034] Step 1, cleaning the non-coated surface of the capsule material, removing oil and harmful impurity elements with an organic solvent, and activating the non-coated surface of the capsule material with ultrasonic waves;

[0035] Wherein, organic solvent is ethyl acetate;

[0036] Step 2, apply UR4731 adhesive on the non-coated surface of the capsule material, and let it stand for 20 hours to form a coating on the non-coated surface of the capsule material;

[0037] Among them, glue A and glue B of UR4731 adhesive are prepared at a weight ratio of 100:10;

[0038] Among them, the adhesive is applied by brushing, spraying or scraping;

[0039] Step 3, filling aluminum-silicon alloy sheets between the coating surfaces of the welding workpiece formed in step 2;

[0040] Among them, the composition of aluminum and silicon in the aluminum-sili...

Embodiment 2

[0045] The invention relates to a method for welding the non-coated surface of aircraft capsule material, which specifically comprises the following steps:

[0046] Step 1, cleaning the non-coated surface of the capsule material, removing oil and harmful impurity elements with an organic solvent, and activating the non-coated surface of the capsule material with ultrasonic waves;

[0047] Wherein, organic solvent is ethyl acetate;

[0048] Step 2, apply UR4731 adhesive on the non-coated surface of the capsule material, and let it stand for 20-24 hours to form a coating on the non-coated surface of the capsule material;

[0049] Among them, glue A and glue B of UR4731 adhesive are prepared at a weight ratio of 100:12;

[0050] Among them, the adhesive is applied by brushing, spraying or scraping;

[0051] Step 3, filling aluminum-silicon alloy sheets between the coating surfaces of the welding workpiece formed in step 2;

[0052] Among them, the composition of aluminum and s...

Embodiment 3

[0057] The invention relates to a method for welding the non-coated surface of aircraft capsule material, which specifically comprises the following steps:

[0058] Step 1, cleaning the non-coated surface of the capsule material, removing oil and harmful impurity elements with an organic solvent, and activating the non-coated surface of the capsule material with ultrasonic waves;

[0059] Wherein, organic solvent is ethyl acetate;

[0060] Step 2, apply UR4731 adhesive on the non-coated surface of the capsule material, and let it stand for 20-24 hours to form a coating on the non-coated surface of the capsule material;

[0061] Among them, glue A and glue B of UR4731 adhesive are prepared at a weight ratio of 100:14;

[0062] Among them, the adhesive is applied by brushing, spraying or scraping;

[0063] Step 3, filling aluminum-silicon alloy sheets between the coating surfaces of the welding workpiece formed in step 2;

[0064] Among them, the composition of aluminum and s...

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Abstract

The invention discloses an aircraft gasbag material non-coating surface welding machining method. The method comprises the steps that firstly, the surface of a gasbag material non-coating surface is cleaned; secondly, the gasbag material non-coating surface is coated with a coating; thirdly, the surface of a welding workpiece coating is filled with aluminum-silicon alloy sheets; and fourthly, welding is performed under protection of inert gas. According to the aircraft gasbag material non-coating surface welding machining method provided by the invention, by treating the single-faced coating polymer composite material non-coating surface, the surface is coated with a binder, the material non-coating surface is made to have welding machining performance, and the problem that a high-strengthsingle-faced coating polymer composite material non-coating surface used for an aircraft gasbag is difficult in welding machining is solved.

Description

technical field [0001] The invention belongs to the technical field of welding technology, and in particular relates to a welding processing method for a non-coated surface of an aircraft capsule material. Background technique [0002] Due to its large size, the main airbag of an aircraft is designed to be spliced ​​with multiple flaps. The material is usually made of polymer composite materials. The coating of this material not only has high air tightness, excellent weather resistance, high resistance to In addition to the flexibility, it also has the machinability of high-frequency welding and hot air welding, so that the polymer materials can be used to splice the capsule flaps into the whole aircraft through high-frequency welding, and meet the various technical indicators of the aircraft. [0003] For the problem that the non-coated surface of the single-sided coated polymer composite material used in aircraft airbags cannot be welded, the commonly used solutions includ...

Claims

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Application Information

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IPC IPC(8): B29C65/02C22C21/02B29L31/30
Inventor 沈小利牛会梅
Owner 宝鸡市铭坤有色金属有限公司
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