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Heat treatment method of alloy resistor

A heat treatment method and alloy resistance technology, applied in resistors, heat treatment furnaces, heat treatment equipment, etc., can solve the problems of high vacuum degree requirements of equipment, affecting production efficiency, and high heat treatment temperature, achieving low cost, high production efficiency, and qualified products. high rate effect

Active Publication Date: 2019-10-18
NANJING SART SCI & TECH DEV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first point: the required heat treatment temperature is high, and the vacuum degree of the equipment used for heat treatment is high, which increases the investment cost of the equipment; the second point: the required heat treatment time is long, which affects the production efficiency

Method used

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  • Heat treatment method of alloy resistor
  • Heat treatment method of alloy resistor
  • Heat treatment method of alloy resistor

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Embodiment Construction

[0017] see figure 1 , the embodiment of the present invention provides a precision alloy resistor heat treatment process method, the heat treatment process method of the precision alloy resistor includes:

[0018] Step S101: Using a vacuum / atmosphere protection furnace to heat the alloy resistor to a first temperature point of 100-300° C., and maintaining the first temperature point for a preset first time period is heating time of 0.25-2 hours.

[0019] The preset first temperature point can be 100°C or 200°C or 300°C, there is no limitation here, as long as it is within the range of 100-300°C, the preset heating time can be 0.25h or 1h or 2h, there is no limitation here, as long as it is within the range of 0.25h~2h.

[0020] Step S102: After the preset heating time, use at least one second temperature point of 150-350°C to heat-preserve the alloy resistor, and maintain the preset second time period of the second temperature point for 1-5h for the holding time.

[0021] F...

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Abstract

The present invention provides a heat treatment method of an alloy resistor. The alloy resistor is heated to a first temperature point by using a low-precision vacuum / atmosphere protection furnace andthe preset heating time of the first temperature point is maintained;. after the preset heating time, the alloy resistor is heat-insulated with at least one second temperature point to maintain the second temperature point and the preset heat insulation time; and after the preset heat insulation time, the alloy resistor is cooled down so as to finally realize production of the alloy resistor withhigh qualification rate, high production efficiency, low cost, high resistance value accuracy and stability and improved the high-temperature exposure performance and fatigue resistance performance of the alloy resistor.

Description

technical field [0001] This application relates to the field of electronic components, in particular to a heat treatment method for precision alloy resistors. Background technique [0002] With the demand for precision and high precision of electronic components, precision alloy resistors have become a vital part of electronic components. Precision alloy resistors are obtained by welding and riveting resistance alloys and copper materials through stamping, resistance repairing, surface treatment and other processes. Since part of the surface of the resistor does not need a protective layer, the resistance material is in direct contact with the air, which can obtain faster heat dissipation and use more power. In addition, the forming method of welding or riveting also makes the alloy resistor more reliable and stable. Such precision alloy resistors are usually used to sense current in circuits, and usually must have low resistance, low temperature coefficient of resistance,...

Claims

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Application Information

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IPC IPC(8): H01C17/30H01C17/00C21D9/00
CPCC21D9/0068H01C17/00H01C17/30
Inventor 杨漫雪肖酉罗亚涛
Owner NANJING SART SCI & TECH DEV