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A kind of processing method of argon blowing gun

A processing method and argon blowing gun technology, applied in the field of molten steel purification devices, can solve problems such as poor high temperature resistance, reduced production efficiency, and short service life, and achieve reduced demoulding maintenance time, long service life, and high product quality. high effect

Active Publication Date: 2015-12-09
马鞍山市欣隆炉料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The demoulding and curing time of the argon blowing gun in the prior art is about 2-3 days, which is long and reduces production efficiency. The key lies in the new research and optimization of the refractory castable components of the argon blowing gun to reduce Demolding and curing time; the existing argon blowing guns still have disadvantages such as poor high temperature resistance, easy damage, and short service life.
[0004] After searching, there is no related report to overcome the above defects by improving the preparation process of the argon blowing gun

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A processing method for an argon blowing gun, comprising the following steps:

[0032] Step 1, ingredients:

[0033] Weigh 72kg of high-alumina bauxite clinker and 11kg of high-alumina cement into the mixer in turn according to weight percentage. After stirring for 1-2 minutes, slowly add 7kg of steel fibers, stir for 2-3 minutes while adding, and then add 5kg of silicon micropowder. Stir for 2-3 minutes, and finally add 5kg of water glass and 18kg of water and stir for 2-3 minutes to make the raw materials stir evenly to obtain a refractory layer castable, and the stirring speed is 2500r / min;

[0034] Step 2, Vibration molding and demoulding:

[0035] After cleaning the inner wall of the mold of the argon blowing gun, apply engine oil, fix the position of the gun core, seal the upper opening of the gun core with a cap, close the mold, tighten it, and hang it on the vibrating table to fix it. Feed evenly, vibrate while feeding, place for 12 hours after vibration moldi...

Embodiment 2

[0040] A processing method for an argon blowing gun, comprising the following steps:

[0041] Step 1, ingredients:

[0042] Weigh 65kg of high-alumina bauxite clinker and 18kg of high-alumina cement into the mixer in turn according to weight percentage. After stirring for 1-2 minutes, slowly add 5kg of steel fibers, stir for 2-3 minutes while adding, and then add 7kg of silicon micropowder. Stir for 2-3 minutes, and finally add 5kg of water glass and 25kg of water and stir for 2-3 minutes to make the raw materials stir evenly to obtain a refractory layer castable, and the stirring speed is 3000r / min;

[0043] Step 2, Vibration molding and demoulding:

[0044] After cleaning the inner wall of the mold of the argon blowing gun, apply engine oil, fix the position of the gun core, seal the upper opening of the gun core with a cap, close the mold, tighten it, and hang it on the vibrating table to fix it. Feed evenly, vibrate while feeding, place for 18 hours after vibration formi...

Embodiment 3

[0049] A processing method for an argon blowing gun, comprising the following steps:

[0050] Step 1, ingredients:

[0051] Weigh 65kg of high-alumina bauxite clinker and 9kg of high-alumina cement into the mixer in turn, stir for 1-2 minutes, then slowly add 8kg of steel fiber, stir for 2-3 minutes while adding, and then add 3kg of silicon micropowder, Stir for 2-3 minutes, and finally add 15kg of water glass and 20kg of water and stir for 2-3 minutes to make the raw materials stir evenly to obtain a castable for the refractory layer. The stirring speed is 3000r / min;

[0052] Step 2, Vibration molding and demoulding:

[0053] After cleaning the inner wall of the mold of the argon blowing gun, apply engine oil, fix the position of the gun core, seal the upper opening of the gun core with a cap, close the mold, tighten it, and hang it on the vibrating table to fix it. Feed evenly, vibrate while feeding, place for 15 hours after vibration forming, demould, and place for anothe...

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Abstract

The invention discloses a processing method of an argon blowing gun, and belongs to the field of molten steel purification plants. The processing method of the argon blowing gun comprises the steps of burdening, vibration molding, demolding, roasting, checking and storing. The argon blowing gun which is prepared by adjusting a formula of flame retardant coating castable and adopting the particular roasting technology can resist the high temperature of 1670-1750 DEG C, has the characteristics of high strength, scouring resistance, corrosion resistance, high blowing rate, good safety, long service life and the like, and can meet the requirements on molten steel purification of continuous casting steel ladles and external refining steel ladles, steel temperature uniform control and refining.

Description

technical field [0001] The invention relates to the field of molten steel purification devices, in particular to a processing method for an argon blowing gun. Background technique [0002] The refining of molten steel outside the furnace is to complete the refining tasks in the general steelmaking furnace, such as desulfurization, deoxidation, degassing, removal of non-metallic inclusions, adjustment of steel composition and molten steel temperature, etc., the "ladle" outside the furnace or in a dedicated container. The steelmaking process is divided into two steps: first, melting and primary smelting in a general steelmaking furnace, called primary smelting furnace; second, refining in a ladle or a special refining vessel. Refining methods outside the furnace generally include slag washing, argon blowing, vacuum, heating and adding solid materials. [0003] At present, the general choice of many manufacturers is argon blowing and refining, because the cost of argon blowin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 谢德义
Owner 马鞍山市欣隆炉料有限责任公司