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Water quenching lining plate and preparation method and application thereof

A technology for water quenching and lining, which is applied in the field of coke quenching lining, can solve the problems of limited hardness, toughness and high temperature wear resistance of water quenching lining, so as to improve the hardness, wear resistance and strength. , the effect of reducing production costs

Active Publication Date: 2021-10-29
山西滨腾机械有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of limited hardness, toughness and high temperature wear resistance of the existing water quenching liner, and further provide a water quenching liner and its preparation method and application

Method used

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  • Water quenching lining plate and preparation method and application thereof
  • Water quenching lining plate and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment provides a method for preparing a water quenching liner, which includes the following steps:

[0025] 1) Weigh the raw materials of each component according to the proportion of the formula, and then add No. 18 bread iron in the intermediate frequency electric furnace for smelting. After the bread iron is melted, add carbon particles, ferrochromium, ferronickel, ferrosilicon, ferromanganese, ferromolybdenum, Metal antimony and rhenium are smelted to obtain the molten steel. The components of the molten steel are: C: 2.9%, Cr: 3.0%, Ni: 0.7%, Si: 2.9%, Mn: 1.2%, Mo: 0.4%, Re: 0.12%, Sb: 0.06%, P: 0.01%, S: 0.006%, the rest is Fe and other unavoidable impurities;

[0026] 2) Pour molten steel into a forming mold through a pouring device to cool and form it to obtain a rough billet for a water quenching coke lining plate, the rough billet has a thickness of 25 mm, a width of 400 mm, and a length of 900 mm;

[0027] 3) Heat the rough blank of the water quen...

Embodiment 2

[0029] This embodiment provides a method for preparing a water quenching liner, which includes the following steps:

[0030] 1) Weigh the raw materials of each component according to the proportion of the formula, and then add No. 18 bread iron in the intermediate frequency electric furnace for smelting. After the bread iron is melted, add carbon particles, ferrochromium, ferronickel, ferrosilicon, ferromanganese, ferromolybdenum, Metal antimony and rhenium are smelted to obtain the molten steel. The components of the molten steel are: C: 2.7%, Cr: 3.4%, Ni: 0.6%, Si: 3.0%, Mn: 1.7%, Mo: 0.6%, Re: 0.15%, Sb: 0.05%, P: 0.009%, S: 0.008%, the rest is Fe and other unavoidable impurities;

[0031] 2) Pour molten steel into a forming mold through a pouring device to cool and form it to obtain a rough billet for a water quenching coke lining plate, the rough billet has a thickness of 25 mm, a width of 400 mm, and a length of 900 mm;

[0032] 3) Heat the rough blank of the water que...

Embodiment 3

[0034] This embodiment provides a method for preparing a water quenching liner, which includes the following steps:

[0035] 1) Weigh the raw materials of each component according to the proportion of the formula, and then add No. 18 bread iron in the intermediate frequency electric furnace for smelting. After the bread iron is melted, add carbon particles, ferrochromium, ferronickel, ferrosilicon, ferromanganese, ferromolybdenum, Metal antimony and rhenium are smelted to obtain the molten steel. The components of the molten steel are: C: 3.1%, Cr: 2.2%, Ni: 0.9%, Si: 1.7%, Mn: 0.6%, Mo: 0.3%, Re: 0.1%, Sb: 0.08%, P: 0.007%, S: 0.009%, the rest is Fe and other unavoidable impurities;

[0036] 2) Pour molten steel into a forming mold through a pouring device to cool and form it to obtain a rough billet for a water quenching coke lining plate, the rough billet has a thickness of 25 mm, a width of 400 mm, and a length of 900 mm;

[0037] 3) Heat the rough blank of the water quen...

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Abstract

The invention relates to the technical field of quenching lining plates, in particular to a water quenching lining plate and a preparation method and application thereof. The water quenching lining plate provided by the invention is prepared from the following chemical components in percentages by mass: 2.7-3.1% of C, 2.2-3.4% of Cr, 0.6-0.9% of Ni, 1.7-3.0% of Si, 0.6-1.7% of Mn, 0.3-0.6% of Mo, 0.1-0.15% of Re, 0.05-0.08% of Sb, smaller than or equal to 0.02% of P, smaller than or equal to 0.02% of S and the balance of Fe and other inevitable impurities. According to the water quenching lining plate provided by the invention, the low-Cr and low-C design thought is adopted, meanwhile, a specific amount of Re and Sb are added into the alloy material, the Re and Sb are matched with each other for grain refining and precipitation strengthening, so that the hardness, toughness, high-temperature wear resistance and other performance of the lining plate can be improved through the synergistic effect of the Re and Sb and other alloy components, and the production cost can be greatly reduced.

Description

technical field [0001] The invention relates to the technical field of coke quenching lining boards, in particular to a water coke quenching lining board and its preparation method and application. Background technique [0002] The coke quenching coke tank car is the supporting equipment of the coke oven. It generally runs on the track below the coke side of the coke oven. Coke, and finally transport the extinguished coke to the designated place. At present, there are mainly two coke quenching methods: water quenching and dry coke quenching. In the process of water coke quenching, the lining board of the coke quenching car needs to periodically withstand the high temperature impact and wear when red coke is loaded into the car. The hardness, toughness and high temperature wear resistance of the water quenching liner put forward higher requirements. [0003] Common gray cast iron and nodular milled cast iron are mostly used as materials for water quenching coke linings at p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/08C22C37/10C21C1/08C21D1/773C21D5/00C21D9/00C22C33/08C10B39/04C10B39/14
CPCC22C37/08C22C37/10C22C33/08C21C1/08C21D1/773C21D9/0068C21D5/00C10B39/04C10B39/14Y02P20/129
Inventor 崔占斌
Owner 山西滨腾机械有限公司
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