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Method for using polyurethane adhesive to encapsulate electrical connector product

An electrical connector and polyurethane adhesive technology, which is applied in the field of potting reliability of electrical connector products, can solve the problems of sealing failure and overflow of potting products, so as to improve the airtight pass rate, increase the curing temperature, and improve the bonding force. Effect

Active Publication Date: 2015-04-29
杭州航天电子技术有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem of the present invention is: to overcome the deficiencies of the existing technology, to provide a method for potting electrical connector products with polyurethane glue, to improve the airtight pass rate of potted products, and to solve the problem of potting products in the air. Seal failure or glue overflow after temperature shock

Method used

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  • Method for using polyurethane adhesive to encapsulate electrical connector product
  • Method for using polyurethane adhesive to encapsulate electrical connector product
  • Method for using polyurethane adhesive to encapsulate electrical connector product

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Embodiment Construction

[0042] The present invention proposes a method for potting electrical connector products using polyurethane glue, such as figure 1 As shown, the specific content is as follows:

[0043] (1) Clean the parts to be potted of electrical connector products

[0044] Clean the part of the product to be potted with acetone. Make the bonding and potting parts clean and free from oil, dust and other excess.

[0045] (2) Primer the parts to be potted of electrical connector products

[0046] After the cleaned product is dry, apply the adhesive to the metal-glue bonding part of the product. The primed product is dried at room temperature for 1 hour, and then cured at 100°C-120°C for 1h-2h.

[0047] The specific method of coating the metal and glue bonding part of the product with adhesive is as follows:

[0048] Remove the plating from the bonding surface, then degrease the bonding surface with acetone or isopropanol and allow to dry. If you are using a volatile adhesive, in order t...

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Abstract

The invention discloses a method for using a polyurethane adhesive to encapsulate an electrical connector product. The method comprises the steps of cleaning the product, first coating, stopping leakage, pre-drying, pouring the polyurethane adhesive, solidifying, checking the airtightness, and the like, wherein the specific technologic method for each step is provided. According to the method disclosed by the invention, the airtightness qualification rate of the encapsulated product is increased, and the problem that the encapsulated product fails to be sealed or adhesive overflows after temperature shock can be solved.

Description

technical field [0001] The invention relates to a method for potting electric connector products with polyurethane glue, and belongs to the technical field of potting reliability of electric connector products. Background technique [0002] Polyurethane glue, as one of the aerospace electrical connector materials, has the functions of sealing, bonding, and insulation, and is widely used in electrical connector products. The working temperature of many aerospace electrical connector products is required to be in the range of -55°C to 125°C, and the sealing index is 1MPa to 4MPa. More stringent technical requirements require reliable potting technology for polyurethane potting adhesives that can withstand the above-mentioned harsh environments. [0003] The current polyurethane potting materials for electrical connectors are mainly cast polyurethane elastomers. During the assembly process, the contact parts and the housing are sealed together by potting polyurethane glue to e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R43/18
CPCH01R43/18
Inventor 邓红
Owner 杭州航天电子技术有限公司
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