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A method for repairing torpedo tanks in hot state

A technology of thermal repair and torpedo tanks, which is applied to casting molten material containers, manufacturing tools, metal processing equipment, etc., can solve the problems of increasing the use of baking energy such as gas, reducing the turnover rate of torpedo tanks, and reducing work efficiency, etc., to achieve Improve sintering strength and corrosion resistance, improve slag iron corrosion resistance, and improve work efficiency

Inactive Publication Date: 2018-08-28
郑州豫元耐材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Usually, the torpedo cans are repaired by cooling. It takes 7 days to cool the torpedo tanks. After cooling, it takes 1 to 2 days to repair. After repairing, it takes 4 to 5 days to bake to 1000 ° C. The cold repair must make the torpedo tanks offline. , reduces the turnover rate of torpedo tanks, increases the use of baking energy such as gas, wastes time, and reduces work efficiency; at the same time, refractory materials made of aluminum silicon carbide and carbon are widely used in steelmaking systems in steel mills, and the inner working lining of torpedo tanks is used It is an aluminum silicon carbide carbon brick, and the cold repair uses a high-alumina castable, which is less than one piece sintered with the aluminum silicon carbide carbon brick for the working lining, and less than one piece is fused with the water in the castable material due to the existence of graphite. The lining refractory material is processed by extreme cold and extreme heat, which is easy to peel off and damage, and the service life is too short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Add 22 parts of burnt gem aggregate with a particle size of 3-5 mm, 27 parts of burnt gem aggregate with a particle size of 1-3 mm, 18 parts of brown corundum aggregate with a particle size of 0-1 mm, and 320 mesh brown corundum fine powder 9 parts, 320 mesh brown corundum fine powder refers to the fine powder obtained by passing the brown corundum fine powder through a 320 mesh standard sieve, the same below, 6 parts of 240 mesh SiC powder, 2 parts of 100 mesh flake graphite, with a particle size of 5 microns 2.5 parts of alumina micropowder, 3 parts of 100 mesh carbon nine petroleum resins, 9 parts of 80 mesh pitch powders, 1 part of 200 mesh ferrosilicon nitrides, 0.5 part of 200 mesh phenolic resin powders, stir, after stirring 3 minutes, go out mixer, Vested repairing raw materials; In this embodiment, the proportion of aggregate is large, the fine powder is the minimum value, and the amount of carbon nine petroleum resin, ferrosilicon nitride, and phenolic resin po...

Embodiment 2

[0016] Add 19 parts of burnt gem aggregate with a particle size of 3-5 mm, 23 parts of burnt gem aggregate with a particle size of 1-3 mm, 17 parts of corundum aggregate with a particle size of 0-1 mm, and 10 parts of 320-mesh brown corundum fine powder. Parts, 7 parts of 240 mesh SiC powder, 2 parts of 100 mesh flake graphite, 1.5 parts of alumina micropowder with a particle size of 5 microns, 5 parts of 100 mesh carbon nine petroleum resin, 11 parts of 80 mesh pitch powder, 200 mesh ferrosilicon nitride 3 parts, 1.5 parts of 200 mesh phenolic resin powder, stir, after stirring for 3 minutes, add additive and be 0.4 part of 200 mesh borosilicate glass powder, then after stirring for 5 minutes, go out the blender, both get repairing raw material; The proportion of fine powder is large, the aggregate is the minimum value, and the amount of carbon nine petroleum resin, ferrosilicon nitride, and phenolic resin powder is large. Due to the small amount of aggregate, the temperature ...

Embodiment 3

[0018] Add 20 parts of burnt gem aggregate with a particle size of 3-5 mm, 25 parts of burnt gem aggregate with a particle size of 1-3 mm, 18 parts of corundum aggregate with a particle size of 0-1 mm, and 10 parts of 320-mesh brown corundum fine powder. Parts, 7 parts of 240 mesh SiC powder, 2 parts of 100 mesh flake graphite, 2 parts of alumina micropowder with a particle size of 5 microns, 4 parts of 100 mesh carbon nine petroleum resin, 9 parts of 80 mesh pitch powder, 200 mesh ferrosilicon nitride 2 parts, 1 part of 200-mesh phenolic resin powder, stirred, after stirring for 3 minutes, add 0.4 parts of 200-mesh borosilicate glass powder as an additive, and then stir for 5 minutes, then take out the mixer to obtain repairing materials.

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PUM

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Abstract

The invention relates to a method for repairing a torpedo ladle in a thermal state. The method includes the steps that 200-500 kg of repair raw material is put into the torpedo ladle, the torpedo ladle is swung, repair is conducted through residual heat of the torpedo ladle after iron tapping, automatic sintering is achieved half an hour later, the material is combined with lining bricks in the torpedo ladle, and then the torpedo ladle is repaired. The repair raw material for the torpedo ladle is prepared from, by weight, 19-22 parts of flint clay aggregate with the grain diameter of 3-5 mm, 23-27 parts of flint clay aggregate with the grain diameter of 1-3 mm, 17-20 parts of brown aluminum oxide aggregate, 8-12 parts of brown aluminum oxide fine powder, 5-7 parts of SiC powder, 1-3 parts of crystalline flake graphite, 1-3 parts of alumina micro powder, 3-5 parts of C9 petroleum resin, 8-11 parts of asphalt powder, 1-3 parts of ferro silicon nitride and 0.5-1.5 parts of phenolic resin powder. The iron slag erosion resistance of the repair material is improved, time is saved, and working efficiency is improved.

Description

technical field [0001] The invention relates to the field of a torpedo tank car, in particular to a method for repairing a torpedo tank in a hot state. Background technique [0002] Usually, the torpedo cans are repaired by cooling. It takes 7 days to cool the torpedo tanks. After cooling, it takes 1 to 2 days to repair. After repairing, it takes 4 to 5 days to bake to 1000 ° C. The cold repair must make the torpedo tanks offline. , reduces the turnover rate of torpedo tanks, increases the use of baking energy such as gas, wastes time, and reduces work efficiency; at the same time, refractory materials made of aluminum silicon carbide and carbon are widely used in steelmaking systems in steel mills, and the inner working lining of torpedo tanks is used It is an aluminum silicon carbide carbon brick, and the cold repair uses a high-alumina castable, which is less than one piece sintered with the aluminum silicon carbide carbon brick for the working lining, and less than one p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C04B26/26B22D41/02
CPCB22D41/023C04B26/26C04B35/66C04B14/10C04B14/303C04B14/324C04B14/024C04B24/24C04B14/325C04B24/302C04B14/22
Inventor 于梽远韩松强王维纶贾万松
Owner 郑州豫元耐材有限公司