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Electric heating wire formulation and electric heating wire preparation process

A preparation process and heating wire technology, applied in the direction of heating element materials, etc., can solve the problems of poor practicability, limited service life, poor performance, etc., and achieve the effect of improving creep resistance and improving performance.

Inactive Publication Date: 2018-01-30
南通聚星铸锻有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the heating wires used in real life are produced by ordinary processes, and their performance is poor, especially under high temperature conditions, which are easily deformed and cannot adapt to high temperature conditions, and their service life is also limited, resulting in poor practicability. , unable to meet the needs of today's heat treatment equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Based on the raw materials of the above mass fraction ratio, take Cr30, Ni50, W1-5, Mo1-3, Ai5-10, Si1-3, Y 2 o 3 Composite oxide 0.3-3, the balance is Fe.

[0030] A preparation process for heating wire, based on the ratio of the above-mentioned raw materials, comprising the following steps:

[0031] Step 1: Pour the above-mentioned alloy powder into the high-energy ball mill tank according to the proportion and mix it mechanically;

[0032] Step 2: The evenly mixed alloy powder is taken out of the tank and enters the vacuum furnace for high-temperature hydrogen reduction;

[0033] Step 3: Put the reduced powder into a high-energy ball mill tank, add anhydrous gasoline and viscose, and add high-speed steel balls with a volume fraction of 60% in the high-energy ball mill tank. More than or equal to 48 hours, after the cover is sealed, carry out mechanical alloying ball milling for 48 hours;

[0034] Step 4: Sieve the ground powder to remove impurities and pour it in...

Embodiment 2

[0041] Based on the raw material of the mass fraction ratio of Example 1, take Cr50, Ni30, W1-5, Mo1-3, Ai5-10, Si1-3, Y 2 o 3 Composite oxide 0.3-3, the balance is Fe.

[0042] A preparation process of heating wire, based on the proportioning of a kind of raw material of embodiment 2, comprises the following steps:

[0043] Step 1: Pour the above-mentioned alloy powder into the high-energy ball mill tank according to the proportion and mix it mechanically;

[0044] Step 2: The evenly mixed alloy powder is taken out of the tank and enters the vacuum furnace for high-temperature hydrogen reduction;

[0045] Step 3: Put the reduced powder into a high-energy ball mill tank, add anhydrous gasoline and viscose, and add high-speed steel balls with a volume fraction of 60% in the high-energy ball mill tank, set the speed to 300r / min, and the ball milling time More than or equal to 48 hours, after the cover is sealed, carry out mechanical alloying ball milling for 48 hours;

[004...

Embodiment 3

[0053] Based on the raw materials of the mass fraction ratio of embodiment one and embodiment two, select a kind of optimal raw material ratio: get Cr40, Ni40, W1-5, Mo1-3, Ai5-10, Si1-3, Y 2 o 3 Composite oxide 0.3-3, the balance is Fe.

[0054] A kind of preparation technology of heating wire, based on the proportioning of the best raw material of embodiment three, comprises the following steps:

[0055] Step 1: Pour the above-mentioned alloy powder into the high-energy ball mill tank according to the proportion and mix it mechanically;

[0056] Step 2: The evenly mixed alloy powder is taken out of the tank and enters the vacuum furnace for high-temperature hydrogen reduction;

[0057] Step 3: Put the reduced powder into a high-energy ball mill tank, add anhydrous gasoline and viscose, and add high-speed steel balls with a volume fraction of 60% in the high-energy ball mill tank. More than or equal to 48 hours, after the cover is sealed, carry out mechanical alloying ball...

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Abstract

The invention discloses an electric heating wire formulation and an electric heating wire preparation process. The electric heating wire formulation comprises, by mass, 30-50% of Cr, 30-50% of Ni, 1-5% of W, 1-3% of Mo, 5-10% of Ai, 1-3% of Si, 0.3-3% of Y2O3 composite oxide and the balance Fe. Corresponding raw material powder is subjected to mechanical alloying, drying, pressing, sintering, forging, hot rolling, bright annealing and surface preoxidation film treatment, nano oxides high in distribution density and small in size exist in a matrix and have a remarkable pinning effect on dislocation motion of alloy under a high-temperature condition, creep resistance of an electric heating wire at a high temperature is improved, the service life of the electric heating wire is longer than that of an existing electric heating wire by ten times or more, the utilization temperature reaches 1400 DEG C, and usability of the electric heating wire is greatly improved.

Description

technical field [0001] The invention relates to the technical field of heat treatment furnace equipment, in particular to an electric heating wire formula and a preparation process. Background technique [0002] Heating wire is widely used in heat treatment processing equipment, and the quality of the heating wire is a core technical point of heat treatment equipment. The performance of heat treatment equipment depends entirely on the heating wire. However, most of the heating wires used in real life are produced by ordinary processes, and their performance is poor, especially under high temperature conditions, which are easily deformed and cannot adapt to high temperature conditions, and their service life is also limited, resulting in poor practicability. , unable to meet the needs of today's heat treatment equipment. Contents of the invention [0003] The purpose of the present invention is to provide a heating wire formula and preparation process, which has a high cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05C22C27/06C22C30/00C22C32/00C22C1/05H05B3/12C22F1/10C22F1/11
Inventor 归惠清严哲严和平
Owner 南通聚星铸锻有限公司
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