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A kind of cable harness flange filling and sealing method

A technology of cable bundles and flanges, which is applied in the direction of pipes, pipes/pipe joints/pipe fittings, mechanical equipment, etc., and can solve problems such as low adhesion between glue and metal, poor sealing performance, and uneven glue surface. Achieve the requirements of ensuring air tightness, good sealing performance, and overcome the unevenness of the rubber surface

Active Publication Date: 2017-09-29
BEIJING XINLI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) Use JC-311 general-purpose two-component epoxy resin glue for perfusion on the flange. This glue does not have high adhesion to metal. Under the pressure difference of 50kPa, leakage occurs, and the sealing performance does not meet the requirements.
[0006] In the process of realizing the present invention, the inventor found that there are at least defects such as uneven glue surface, easy leakage, poor sealing and low reliability in the prior art

Method used

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  • A kind of cable harness flange filling and sealing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The cable bundle flange filling and sealing method of this embodiment mainly includes:

[0048] a. Silicone rubber sealing ring is used to seal the flange that needs to be poured;

[0049] In step a, the operation of sealing the flange that needs to be poured includes:

[0050] Mill a sealing groove on the inside of the opening of the flange that needs to be poured, and fill the sealing groove with a silicone rubber sealing ring that matches the sealing groove; the thickness of the sealing groove is 2 / 3 of the thickness of the bottom of the flange left and right (for example, 1.5 / 3);

[0051] b. Through the opening on the sealed flange, pour the fluid silicone rubber into the flange in layers until the filling surface is flush with the inner surface of the flange;

[0052] In step b, the operation of pouring the fluid silicone rubber into the flange plate in layers, specifically includes:

[0053] When the thickness of each layer of perfusion glue is 2.5mm, after the b...

Embodiment 2

[0061] Different from the above-mentioned embodiments, the cable bundle flange filling and sealing method of this embodiment mainly includes:

[0062] a. Silicone rubber sealing ring is used to seal the flange that needs to be poured;

[0063] In step a, the operation of sealing the flange that needs to be poured includes:

[0064] Mill a sealing groove on the inside of the opening of the flange that needs to be poured, and fill the sealing groove with a silicone rubber sealing ring that matches the sealing groove; the thickness of the sealing groove is 2 / 3 of the thickness of the bottom of the flange left and right (e.g. 2.5 / 3);

[0065] b. Through the opening on the sealed flange, pour the fluid silicone rubber into the flange in layers until the filling surface is flush with the inner surface of the flange;

[0066] In step b, the operation of pouring the fluid silicone rubber into the flange plate in layers, specifically includes:

[0067] When the thickness of each lay...

Embodiment 3

[0074] Different from the above-mentioned embodiments, the cable bundle flange filling and sealing method of this embodiment mainly includes:

[0075] a. Silicone rubber sealing ring is used to seal the flange that needs to be poured;

[0076] In step a, the operation of sealing the flange that needs to be poured includes:

[0077] Mill a sealing groove on the inside of the opening of the flange that needs to be poured, and fill the sealing groove with a silicone rubber sealing ring that matches the sealing groove; the thickness of the sealing groove is 2 / 3 of the thickness of the bottom of the flange ;

[0078] b. Through the opening on the sealed flange, pour the fluid silicone rubber into the flange in layers until the filling surface is flush with the inner surface of the flange;

[0079] In step b, the operation of pouring the fluid silicone rubber into the flange plate in layers, specifically includes:

[0080] When the thickness of each layer of perfusion glue is 1.5...

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Abstract

The invention discloses a cable bundle flange filling and sealing method, which mainly includes: a. using a silicon rubber sealing ring to seal the flange that needs to be poured; b. Holes are opened, and the fluid silicone rubber is poured into the flange in layers until the pouring surface of the silicone rubber is flush with the inner surface of the flange. The cable harness flange filling and sealing method of the present invention can overcome the defects of uneven rubber surface, easy leakage, poor sealing performance and low reliability in the prior art, so as to achieve smooth rubber surface, not easy to leak, good sealing performance and The advantage of high reliability.

Description

technical field [0001] The invention relates to the technical field of making electronic equipment connecting cables, in particular to a method for pouring and sealing a flange of a cable bundle. Background technique [0002] Electric cable (electric cable; power cable), usually a rope-like cable made of several or several groups of wires twisted with at least two wires in each group. Each group of wires is insulated from each other and often twisted around a center. , the entire exterior is covered with a highly insulating covering. [0003] At present, the main problems in the filling and sealing technology of the cable harness flange: [0004] (1) When Nanda 703 glue is used for plugging and pouring of the flange, the method of one-time injection is used for filling. After the glue is cured, the flange is subjected to a high temperature test at 100 ° C. After the test, it is found that the glue surface is blistered and torn. Bubble holes were found inside, indicating th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L5/02
Inventor 李静雯牛宗霞张潮
Owner BEIJING XINLI MACHINERY
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