A high-manganese-nickel-chromium resistance electric heating alloy and its preparation method
An electrothermal alloy and nickel-chromium technology, which is applied in the field of high manganese nickel-chromium resistance electrothermal alloy and its preparation, can solve the problems that have not occurred in the field of electrothermal alloy materials, and can improve deformation and heat treatment process, improve mechanical properties and service life, improve The effect of alloy strength
Active Publication Date: 2017-03-01
YANCHENG XINYANG ELECTROTHERMAL MATERIAL CO LTD
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Problems solved by technology
Substituting nickel with manganese has become a very mature and widely used process in the field of stainless steel, but there are no related reports in the field of electrothermal alloy materials
Method used
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Embodiment Construction
[0016] Further illustrate and understand the present invention through embodiment below.
[0017] The preparation method of the high manganese nickel chromium resistance electric heating alloy of the present embodiment comprises:
[0018] (1) Ingredients, according to C: 0.04%, Si: 1.1%, Mn: 11%, Al: 0.15%, Cr: 20%, Fe: 0.4%, Ti: 0.2%, Zr: 0.3%, Ce: 0.04% , S≤0.01%, P≤0.01%, and the balance is the proportion of nickel and unavoidable impurities for batching;
[0019] (2) Smelting, put the raw materials into an intermediate frequency induction furnace for smelting, the refining temperature is controlled at 1560°C, and after 50 minutes of refining, it is taken out of the furnace and cast into ingots;
[0020] (3) Homogenizing annealing, the ingot after smelting is kept in the heat treatment furnace of 850 ℃ for 12 hours and then cooled with the furnace;
[0021] (4) forging, putting the ingot after homogenizing annealing into an isothermal forging machine for forging, the forg...
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Abstract
The invention relates to high manganese, nickel and chromium resistance electrothermal alloy and a preparation method thereof. The alloy is prepared from the following components in percentage by weight: less than or equal to 0.06% of C, 0.8-1.5% of Si, 10-12% of Mn, 0.1-0.2% of Al, 19-23% of Cr, 0.2-0.6% of Fe, 0.1-0.3% of Ti, 0.2-0.5% of Zr, 0.01-0.05% of Ce, less than or equal to 0.015% of S, less than or equal to 0.02% of P and the balance of nickel and inevitable impurities. The preparation method comprises the following steps: dosing; smelting; homogenizing annealing; forging; hot-rolling a steel wire rod; carrying out solution treatment; carrying out multi-pass wire drawing; and carrying out a stress relieving process. According to the material prepared by the preparation method, by means of substitution for nickel with manganese, the content of nickel is reduced on the premise that the alloy composition and performance are guaranteed, so that the cost is lowered, the resource characteristic that our country is rich in manganese but poor in nickel is met, and the alloy has a wide application prospect.
Description
[0001] Technical field: [0002] The invention relates to an electrothermal alloy material, in particular to a high-manganese-nickel-chromium resistance electrothermal alloy and a preparation method thereof. [0003] Background technique: [0004] Electric heating alloy is an alloy material used to prepare electric heating elements. The electrothermal alloys currently used are mainly divided into two categories: nickel-chromium alloys with austenite structure and iron-chromium-aluminum alloys with ferrite structure. These two alloys have their own advantages and disadvantages in the preparation of heating elements. The main advantages of nickel-chromium alloy are: high temperature strength, good plasticity, high emissivity and good corrosion resistance (except for sulfur-containing atmosphere and some controllable atmospheres), but its high-temperature oxidation resistance is poor , and expensive. Especially for our country, since our country is a nickel-poor country, how to...
Claims
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IPC IPC(8): C22C19/05C22F1/10
Inventor 郭健郭小芳郭乃林
Owner YANCHENG XINYANG ELECTROTHERMAL MATERIAL CO LTD