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Processing technology of iron-chromium-aluminum resistance wire

A processing technology, resistance wire technology, applied in the direction of resistors, resistance manufacturing, circuits, etc., to achieve the effect of increasing the use temperature, high production efficiency, and saving production costs

Inactive Publication Date: 2015-05-20
DANYANG ZHISHENG ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of my country's industry, the degree of electrification continues to increase. As an indispensable component in the circuit, resistance wire has a wide range of uses and various types. The optimization and innovation of its processing technology has been discussed by people. From the existing technology Look, none of them can solve the problems of how to improve production efficiency, save production cost, how to enhance the tensile strength of resistance wire, and how to increase the maximum use temperature of resistance wire

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of processing technology of iron-chromium-aluminum resistance wire, described processing technology comprises the steps:

[0018] (1) Raw material selection: Powdered iron, chromium, aluminum, rhenium, molybdenum, etc. are selected as processing raw materials, which can increase the maximum service temperature of iron-chromium-aluminum resistance wire and increase its service life. The powdery raw material is conducive to mixing evenly. The proportion of iron in the raw materials is 75.9%, the proportion of chromium is 12.5%, the proportion of aluminum is 4.6%, the proportion of rhenium is 0.5%, and the balance is molybdenum.

[0019] (2) Heating and smelting: choose a magnesia crucible, first add raw materials and stir evenly, then put it into an intermediate frequency induction furnace for heating and smelting to obtain a metal solution, with fast heating speed and high production efficiency, which can improve the utilization rate of materials and save Producti...

Embodiment 2

[0024] The rest are the same as in Example 1, except that in the step (1), the proportion of iron in the raw material is 80.6%, the proportion of chromium is 15.0%, the proportion of aluminum is 6.0%, and the proportion of rhenium is 0.8% , the balance is molybdenum. In the step (2), the heating temperature is 1650°C. In the step (3), the temperature of the resistance wire copper mold is 150°C. In the step (4), The temperature is 25°C, the diameter of the resistance wire is 4.5mm, and in the step (5), the annealing temperature is 350°C.

Embodiment 3

[0026] The rest are the same as in Example 1, except that in the step (1), the proportion of iron in the raw material is 79.6%, the proportion of chromium is 14.5%, the proportion of aluminum is 5.8%, and the proportion of rhenium is 0.7% , the balance is molybdenum. In the step (2), the heating temperature is 1630°C. In the step (3), the temperature of the resistance wire copper mold is 120°C. In the step (4), The temperature is 22°C, the diameter of the resistance wire is 3.5 mm, and in the step (5), the annealing temperature is 300°C.

[0027] Test items Example 1 Example 2 Example 3 Standard Premium tensile strength 750Mpa 735Mpa 733Mpa 730Mpa hardness 248HB 245HB 255HB 240HB Maximum operating temperature 1420℃ 1410℃ 1400℃ 1400℃

[0028] It can be known from practical application that during the processing of Fe-Cr-Al resistance wire, selecting iron, chromium, aluminum, rhenium, molybdenum, etc. as processing raw mat...

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Abstract

The invention discloses a processing technology of an iron-chromium-aluminum resistance wire, and relates to the metal processing field; the processing technology includes five technology steps of raw material selection, heating melting, casting molding, cold drawing and annealing treatment; iron, chromium, aluminum, rhenium, molybdenum and the like are selected as processing raw materials, can improve a highest use temperature of the iron-chromium-aluminum resistance wire and increases the service life; the raw materials are powdery so as to facilitate uniform mixing; the raw materials are put into an induction furnace and subjected to heating melting, the heating speed is fast, the production efficiency is high, the material utilization rate can be improved, and production costs are saved; after the resistance wire is subjected to annealing treatment in an electric furnace, the tensile strength of the resistance wire can be enhanced, and the mechanical properties are improved.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a processing technology for an iron-chromium-aluminum resistance wire. Background technique [0002] With the continuous development of my country's industry, the degree of electrification continues to increase. As an indispensable component in the circuit, resistance wire has a wide range of uses and various types. The optimization and innovation of its processing technology has been discussed by people. From the existing technology Look, all can not solve how to improve production efficiency, save production cost, how to enhance the tensile strength of resistance wire, how to improve the problem of the maximum service temperature of resistance wire. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a processing technology for Fe-Cr-Al resistance wire. [0004] For realizing the purpose o...

Claims

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Application Information

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IPC IPC(8): H01C17/00C22C38/22
Inventor 王良玉张坚刘浩方
Owner DANYANG ZHISHENG ALLOY