Chromium-based high-nitrogen alloy cushion block for silicon steel high-temperature heating furnace and preparation method of chromium-based high-nitrogen alloy cushion block

A high-temperature heating, high-nitrogen alloy technology, used in heat treatment furnaces, heat treatment equipment, metal processing equipment, etc., can solve problems such as the reduction of limited resources, improve adhesion, improve high temperature oxidation resistance, and improve crevice corrosion resistance. Effect

Active Publication Date: 2021-09-28
烟台新钢联冶金科技有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the disclosed alloy contains tungsten, and as we all know, tungsten, as a non-renewable resource, is facing a rapid reduction of limited resources due to a large number of unreasonable mining over the years; for the sustainable development of this field, it is urgent to find alternative products

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  • Chromium-based high-nitrogen alloy cushion block for silicon steel high-temperature heating furnace and preparation method of chromium-based high-nitrogen alloy cushion block
  • Chromium-based high-nitrogen alloy cushion block for silicon steel high-temperature heating furnace and preparation method of chromium-based high-nitrogen alloy cushion block
  • Chromium-based high-nitrogen alloy cushion block for silicon steel high-temperature heating furnace and preparation method of chromium-based high-nitrogen alloy cushion block

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Embodiment Construction

[0026] Below in conjunction with embodiment further illustrate the present invention.

[0027] The eight embodiments of the present invention correspond to the preparation of heat-resistant pads from sample 1 to sample 8 in Table 1, respectively, and are casted according to the specific alloy composition in Table 1.

[0028] Table 1 sample chemical composition (mass %)

[0029]

[0030]

[0031] Among them, the difference between sample 2, sample 3 and sample 4 and sample 1 is mainly reflected in the change of Mo content, and the difference between sample 5, sample 6 and sample 7 and sample 1 is mainly reflected in the content of N The content changes, and the difference between sample 8 and sample 1 is mainly reflected in whether rare earth elements (La and Ce) are added.

[0032] The above-mentioned chromium-based high-nitrogen alloy heat-resistant pads for silicon steel high-temperature heating furnaces are all prepared by hot-melt method, and the preparation steps a...

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Abstract

The invention discloses a chromium-based high-nitrogen alloy cushion block for a silicon steel high-temperature heating furnace and a preparation method of the chromium-based high-nitrogen alloy cushion block. The alloy cushion block contains Cr, Mo, N, La, Ce and Fe and does not contain tungsten. The high-temperature oxidation resistance and the high-temperature creep resistance of the alloy cushion block are superior to those of ferrochrome in the prior art; and the alloy cushion block can optimize and replace an existing ferrochrome cushion block for the silicon steel high-temperature heating furnace, the heating requirement of silicon steel in the heating furnace is met, large-scale industrialized production is achieved, and the high use value and the wide application market are achieved.

Description

technical field [0001] The invention relates to a chromium-based alloy pad, in particular to a chromium-based high-nitrogen alloy pad with high temperature resistance, oxidation resistance, corrosion resistance and creep resistance for a silicon steel high-temperature heating furnace. The invention also relates to a preparation method of the chromium-based high-nitrogen alloy pad. Background technique [0002] Walking beam heating furnace is the mainstream heating equipment for steel billet heating before rolling in steel rolling mills, and heat-resistant pads are key components for heating furnace. The heat-resistant block needs to work under the extremely high temperature of 1200 ℃ ~ 1350 ℃ and the harsh conditions of strong oxidation and vulcanization, and plays the role of supporting and transferring the heated billet. [0003] The temperature in the silicon steel high-temperature heating furnace can reach 1400°C. At this temperature, the heat-resistant block made of tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C27/06C22C1/02B22C9/04B22C9/22C21D9/70
CPCC22C27/06C22C1/02B22C9/04B22C9/22C21D9/0006C21D9/70
Inventor 王楠马志军林毓云成华
Owner 烟台新钢联冶金科技有限公司
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