Protective agent and surface treatment method for reducing contact resistance of rivet electrical contacts

A contact resistance and surface treatment technology, applied in chemical instruments and methods, circuits, relays, etc., can solve problems such as large resistance and affect the reliable operation of relays, and achieve the effect of reducing surface contact resistance and protecting long-term storage.

Active Publication Date: 2022-06-21
ZHEJIANG FUDA ALLOY MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current rivet electrical contacts are shipped to the customer, stored for a period of time, the surface of the contact is oxidized, and a large resistance phenomenon occurs, or the customer is assembled into a relay, and the mechanical aging is carried out 200~300 times, and the rivet electrical contacts collide quickly. Sparks quickly form an oxide film on the surface of the rivet electrical contact, resulting in large resistance, which directly affects the reliable operation of the relay

Method used

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  • Protective agent and surface treatment method for reducing contact resistance of rivet electrical contacts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The protective agent of this embodiment adopts the raw material (V / V) of the following proportions: petroleum ether 1.5%; 365AZ 98.5%. During preparation, the two reagents are mixed in a container and stirred evenly. When in use, immerse 1kg of rivet electrical contacts in the mixture consisting of petroleum ether and 365AZ, take out the rivet electrical contacts after 5 minutes and dry them with hot air at 140°C.

Embodiment 2

[0014] The protective agent of this embodiment adopts the raw material (V / V) of the following proportions: petroleum ether 0.5%; 365AZ 99.5%. During preparation, the two reagents are mixed in a container and stirred evenly. When in use, immerse 1kg of rivet electrical contacts in the mixture consisting of petroleum ether and 365AZ, take out the rivet electrical contacts after 5 minutes and dry them with hot air at 140°C.

Embodiment 3

[0016] The protective agent of this embodiment adopts the following raw materials (V / V): petroleum ether 2.5%; 365AZ 97.5%. During preparation, the two reagents are mixed in a container and stirred evenly. When in use, immerse 1kg of rivet electrical contacts in the mixture consisting of petroleum ether and 365AZ, take out the rivet electrical contacts after 5 minutes and dry them with hot air at 140°C.

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Abstract

The invention belongs to the field of surface treatment of rivet electric contacts, in particular to a protective agent and a surface treatment method for reducing the contact resistance of rivet electric contacts. The protective agent is composed of raw materials in the following volume ratio: 365AZ 97.5%~99.5%; petroleum ether 0.5%~2.5%. The invention uses 365AZ to clean the surface of the contact, significantly reducing the surface contact resistance, and at the same time, uses petroleum ether to adhere to the surface, isolate the air, and act as a protective agent to protect the long-term storage and use reliability of the rivet electric contact.

Description

technical field [0001] The invention belongs to the field of surface treatment of rivet electric contacts, in particular to a protective agent and a surface treatment method for reducing the contact resistance of rivet electric contacts. Background technique [0002] The current rivet electrical contacts are shipped to the customer and stored for a period of time, the surface of the contact is oxidized, and the resistance is large, or after the customer is assembled into a relay, the mechanical aging is performed 200~300 times, and the rivet electrical contacts collide quickly. Sparks rapidly form oxide film on the surface of rivet electrical contacts, resulting in high resistance, which directly affects the reliable operation of the relay. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a protective agent and a surface treatment method for reducing the contact resistance of a rivet electrical contact in order to overcome the shortcomin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H49/00H01H11/04C09K15/06
CPCH01H49/00H01H11/04C09K15/06
Inventor 黄文明李路叶俊凯柏小平李元望
Owner ZHEJIANG FUDA ALLOY MATERIALS TECH CO LTD
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