CN103667854A - Method for smelting austenitic stainless steel by using stainless steel oxide - Google Patents
Method for smelting austenitic stainless steel by using stainless steel oxide Download PDFInfo
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- CN103667854A CN103667854A CN201310647969.3A CN201310647969A CN103667854A CN 103667854 A CN103667854 A CN 103667854A CN 201310647969 A CN201310647969 A CN 201310647969A CN 103667854 A CN103667854 A CN 103667854A
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Abstract
A method for smelting austenitic stainless steel by using oxide stainless steel relates to the technical field of stainless steel smelting. 4 tons of high silicon iron is companied with 1 tons of stainless steel oxide and added with 200 Kg of activated lime for melting in an electric arc furnace. The method for smelting austenitic stainless steel by using stainless steel oxide provided by the invention can recycle stainless steel oxide and reduce all the NiO, most of the FeO and part of the Cr2O3 in the stainless steel oxide. The steelmaking technology can turn waste into treasure, not only improves the environment but also reduces the cost.
Description
Technical field:
The present invention relates to stainless steel smelting technical field, relate in particular to a kind of method of utilizing stainless steel oxide smelting austenitic stainless steel.
Background technology:
Stainless steel is difficult for producing burn into spot corrosion, corrosion or wearing and tearing.One of material that in stainless steel or metallic substance for building, intensity is the highest.Because stainless steel has good erosion resistance, so it can make structure unit for good and all keep the integrity of engineering design.Chromium stainless steel also integrates physical strength and deep drawing quality, is easy to the processing and manufacturing of parts, can meet architect and structure design personnel's needs.
Stainless steel is often divided into by structural state: martensitic steel, ferritic steel, austenitic steel, austenite-ferrite (two-phase) stainless steel and PH Stainless Steel etc.In addition, can be divided into by composition: Chromium Stainless Steel, chromium nickel stainless steel and chromic manganese nitrogen stainless steel etc.Each product is due to the difference of purposes, and the quality requirements of its complete processing and raw material is also different.
At present, along with the cited field of stainless steel product is more and more wider, stainless steel is also had higher requirement, existing stainless steel smelting technology can't meet the demand in market, and especially to special steel demand, existing smelting technology also exists very large defect.
It is 1% oxidized and come off that stainless steel Yin Gaowen (being greater than 1100 degrees Celsius) environment in hot procedure approximately has, the oxide species main component FeO, Cr2O3, the NiO that come off.If not being used, can shine into waste.
Summary of the invention:
The object of this invention is to provide a kind of method of utilizing stainless steel oxide smelting austenitic stainless steel.
Technical problem to be solved by this invention realizes by the following technical solutions.
A method of utilizing stainless steel oxide smelting austenitic stainless steel, is characterized in that, in electric arc furnace, with 4 tons of high ferro-silico-nickel, joins 1 ton of stainless steel oxide, then is equipped with the ratio melting of the active metallurgy lime of 200Kg.
Described high ferro-silico-nickel is containing Si4%～5%(quality).
The invention has the beneficial effects as follows:
The method of utilizing stainless steel oxide smelting austenitic stainless steel provided by the invention, can recycle stainless oxide compound, can be by the Cr of the whole NiO in stainless steel oxide, most FeO and part
2o
3reduction.This kind of process for making can be turned waste into wealth, and is not only conducive to improve environment but also reduced cost.
Embodiment:
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Utilize a method for stainless steel oxide smelting austenitic stainless steel, in electric arc furnace, with 4 tons of high ferro-silico-nickel, join 1 ton of stainless steel oxide, high ferro-silico-nickel is containing Si4%～5%(quality), then be equipped with the ratio melting of the active metallurgy lime of 200Kg.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. a method of utilizing stainless steel oxide smelting austenitic stainless steel, is characterized in that, in electric arc furnace, with 4 tons of high ferro-silico-nickel, joins 1 ton of stainless steel oxide, then is equipped with the ratio melting of the active metallurgy lime of 200Kg.
2. the method for utilizing stainless steel oxide smelting austenitic stainless steel according to claim 1, is characterized in that, described high ferro-silico-nickel is containing Si4%～5%(quality).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310647969.3A CN103667854A (en) | 2013-12-04 | 2013-12-04 | Method for smelting austenitic stainless steel by using stainless steel oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310647969.3A CN103667854A (en) | 2013-12-04 | 2013-12-04 | Method for smelting austenitic stainless steel by using stainless steel oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103667854A true CN103667854A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310647969.3A Pending CN103667854A (en) | 2013-12-04 | 2013-12-04 | Method for smelting austenitic stainless steel by using stainless steel oxide |
Country Status (1)
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| CN (1) | CN103667854A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119217A (en) * | 1995-04-12 | 1996-03-27 | 重庆大学 | Regeneration smelting process for oxide skin of high-speed tool steel |
| CN1240231A (en) * | 1999-04-12 | 2000-01-05 | 师海巍 | Steelmaking method using waste material as raw material |
| CN101126138A (en) * | 2007-10-01 | 2008-02-20 | 山西太钢不锈钢股份有限公司 | Method for smelting chromium-nickel-iron alloy from stainless steel dust-removing ash |
| CN102337408A (en) * | 2011-08-30 | 2012-02-01 | 顾卫东 | Two-step reduction method for recycling stainless steel scales |
-
2013
- 2013-12-04 CN CN201310647969.3A patent/CN103667854A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119217A (en) * | 1995-04-12 | 1996-03-27 | 重庆大学 | Regeneration smelting process for oxide skin of high-speed tool steel |
| CN1240231A (en) * | 1999-04-12 | 2000-01-05 | 师海巍 | Steelmaking method using waste material as raw material |
| CN101126138A (en) * | 2007-10-01 | 2008-02-20 | 山西太钢不锈钢股份有限公司 | Method for smelting chromium-nickel-iron alloy from stainless steel dust-removing ash |
| CN102337408A (en) * | 2011-08-30 | 2012-02-01 | 顾卫东 | Two-step reduction method for recycling stainless steel scales |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140326 |