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A kind of preparation technology of high voltage circuit breaker spring

A high-voltage circuit breaker and preparation process technology, applied in the direction of manufacturing tools, circuits, heat treatment equipment, etc., can solve the problems that the change of self-height change P2 load cannot meet the standard, etc., achieve slow warm-up loss, improve production quality, The effect of improving the production accuracy

Active Publication Date: 2020-01-21
ZHEJIANG JINCHANG SPRING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the high-voltage circuit breaker spring is prepared by the general hot coil spring processing technology, after the spring is under strong pressure for 24 hours, the change of its own height and the change of P2 load cannot meet the standard

Method used

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  • A kind of preparation technology of high voltage circuit breaker spring
  • A kind of preparation technology of high voltage circuit breaker spring
  • A kind of preparation technology of high voltage circuit breaker spring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The difference between Examples 18-37 and Example 1 is that the raw materials for preparing the wear-resistant layer are as follows in parts by weight:

[0064]

[0065]

[0066] The difference between embodiment 38-41 and embodiment 1 is: when preparing the heat insulation layer, the thermometer in the step (1) is the following table:

[0067] temperature Example 38 85 Example 39 90 Example 40 95 Example 41 100

[0068]The difference between Examples 42-45 and Example 1 is that when preparing the wear-resistant layer, the thermometer in step (2) is as follows:

[0069] Example temperature Example 42 90 Example 43 100 Example 44 110 Example 45 120

[0070] The difference between Examples 46-49 and Example 1 is that the fixed time in step (2) is calculated as the following table when preparing the heat insulation layer:

[0071] Example time h Example 46 5.25 Ex...

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PUM

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Abstract

The invention discloses a high-voltage circuit breaker spring preparation process, mainly comprising the following steps: sorting, blanking, tip grinding, heating, spring coiling, quenching treatment,tempering treatment, end face grinding treatment, shot blasting, flaw detection, erection treatment, surface treatment, marking and packaging; wherein a thermal compression treatment is performed onthe spring subjected to the tempering treatment by using a thermal compression device. In the high-voltage circuit breaker spring preparation process disclosed by the invention, the thermal compression treatment is performed on the spring subjected to the tempering treatment, so that the performance of the spring is improved, and the precision is improved.

Description

technical field [0001] The invention relates to the technical field of spring preparation, in particular to a high-voltage circuit breaker spring preparation process. Background technique [0002] High-voltage circuit breakers are the main parts of high-voltage power transmission and transformation equipment. Whether they can operate safely plays a key role in ensuring the safe, stable and reliable operation of the entire high-voltage power transmission and transformation network. The high-voltage circuit breaker spring is the core of the operating mechanism. Parts, its importance can be seen. Due to the reliability of the spring operating mechanism of the circuit breaker, the requirements for the spring load deviation are generally very high, which are generally higher than the super precision of the national standard. After the spring is pressed for 24 hours, the free height change is ≤1%×Ho, and the P2 load change is ≤ 2% x P2. It is also required that after the spring ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H11/00C21D1/18C21D9/02C09D163/00C09D177/00C09D127/18C09D7/61
CPCC08K3/042C08K2003/385C08L2205/03C09D7/61C09D163/00C21D1/18C21D9/02H01H11/00C08L77/00C08L27/18C08K3/00C08K3/34C08K3/08C08K3/38
Inventor 费庆民楼昆潮侯亦锋
Owner ZHEJIANG JINCHANG SPRING CO LTD