Treatment method for improving self-heating influence performance of current sampling shunt material
A technology of current sampling and processing methods, applied in heat treatment furnaces, heat treatment equipment, resistors, etc., can solve the problem of small improvement and achieve the effect of improving self-heating stability and consistency
Active Publication Date: 2021-06-15
JIANGSU TONGCHI POWER AUTOMATION
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There are also corresponding aging treatments in the existing processing procedures, such as image 3 Medium: Strip aging treatment (baking at about 500°C for 2-5 hours, once), post-forming aging treatment (baking at about 60°C for 2-5 hours, once), these two high-temperature aging treatments can reduce welding and stamping The material stress generated by these two processes of forming improves the performance stability of the manganin shunt, but the improvement is not large
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[0034] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0035] In the description of the patent of the present invention, it should be noted that the terms "comprising", "comprising" or any other variant thereof are intended to cover a non-exclusive inclusion, except for those elements listed, and may also include elements not explicitly listed. other elements out.
[0036] In order to effectively improve the self-heating stability and consistency of the manganin shunt resistance, the present invention designs a new processing method for the existing common processing procedures, that is, an improved self-heating performance of the current sampling shunt material of the present invention The treatment method, on the basis of the original ordinary pr...
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The invention discloses a treatment method for improving a self-heating influence performance of a current sampling shunt material. The method comprises the steps of special heat treatment of a pure strip, special heat treatment of a combined strip and special heat treatment after forming. For the special heat treatment of the pure strip, a supplied pure strip is respectively subjected to heat treatment of high-temperature baking and natural cooling for a plurality of cycles; for the special heat treatment of the combined strip, a welded combined strip is subjected to heat treatment of high-temperature baking and natural cooling for a plurality of cycles, and a punch-formed shaped product is subjected to heat treatment of high-temperature baking and natural cooling for a plurality of cycles; and high temperatures of high-temperature baking in the special heat treatment of the pure strip, the special heat treatment of the combined strip and the special heat treatment after forming are different and are sequentially reduced. According to the method, the special heat treatment of the pure strip, the special heat treatment of the combined strip and the special heat treatment after forming are added in an original machining procedure, and the self-heating stability and consistency of a manganese-copper shunt are improved.
Description
technical field [0001] The invention relates to the technical field of resistance processing of shunts, in particular to a processing method for improving the self-heating performance of materials of current sampling shunts. Background technique [0002] In the patent of this invention, the term explanation of relevant technical terms: [0003] Smart energy meter: It is an electric energy meter with functions such as energy measurement, data storage, time period rate, communication, data security, load control, etc., which can realize remote automatic meter reading. [0004] Manganese-copper shunt: It is processed into a certain shape by manganese-copper alloy. It is used as a sampling resistor, and the voltage generated at both ends after the current passes through the resistor is used for current sampling. [0005] Self-heating effect: that is, the influence of self-heating of the manganese-copper sampling resistor on the sampling resistor when passing a large current, an...
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IPC IPC(8): C22F1/08C22F1/16C21D1/78C21D9/52C21D9/50H01C17/00
CPCC22F1/08C22F1/16C21D1/785C21D9/52C21D9/50H01C17/00
Inventor 许波万年旺戎健康许申徐晓星
Owner JIANGSU TONGCHI POWER AUTOMATION