CN1031863A - A kind of method that in molten steel, adds selenium - Google Patents
A kind of method that in molten steel, adds selenium Download PDFInfo
- Publication number
- CN1031863A CN1031863A CN 88102637 CN88102637A CN1031863A CN 1031863 A CN1031863 A CN 1031863A CN 88102637 CN88102637 CN 88102637 CN 88102637 A CN88102637 A CN 88102637A CN 1031863 A CN1031863 A CN 1031863A
- Authority
- CN
- China
- Prior art keywords
- selenium
- steel
- molten steel
- piece
- adds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
A kind of method that adds selenium when smelting high-quality steel in molten steel is specially adapted to produce the stainless steel that contains selenium and contains the hot die steel of selenium.Method provided by the invention can and be burnt under the cast bar spare in antivacuum smelting, or in Powdered or the reguline metal selenium adding molten steel, the rate of recovery is stable, on average about 25%, reaches as high as 40%.
Description
The invention belongs to a kind of method that in molten steel, adds selenium when smelting high-quality steel, be specially adapted to produce stainless hot die steel.
For guaranteeing that stainless steel, hot die steel in use have good heat resistanceheat resistant adhesive property and free-cutting ability energy, improve the parts working accuracy, guarantee the safe in utilization of its materials finished product and improve work-ing life, should contain a certain amount of selenium in the steel.But, up to now, because the proportion of selenium is little and the cause of easy voloxidation, especially also to point out, under antivacuum smelting, burning cast bar spare, in molten steel, add pulverous metallic selenium, and can stably obtain higher metal recovery rate, domestic this technical barrier of adding method that do not solve; CC3/60(contains this class-mark of smelting of Selenium Stainless Steel and other documents (Gu for example in the index of patents in 1985 to 1987 by retrieval, SAetal, Selenium, Nati nal Academy of Sciences, Zlol Constitution Avenue Washington D, C, 196, PP28-40) do not find external relevant report yet.
Purpose of the present invention is to provide a kind of simple and easy method that adds selenium in molten steel, and it adds pulverous metallic selenium in the molten steel to be implemented in antivacuum smelting and to water under the condition, can obtain higher selenium recovery in stable and controllable ground.
A kind of method that adds selenium in molten steel provided by the invention is meant: pulverous metallic selenium is mixed alloy block or the selenium piece that is pressed into other golden selenium powders, under antivacuum smelting and casting condition, at tapping process it is added in the molten steel.
A kind of method that adds selenium in molten steel provided by the invention is:
Under antivacuum smelting and casting condition, the molten steel of smelting in steel melting furnace is when tapping, and the molten steel face in steel teeming ladle adds with selenium alloy piece or selenium piece immediately, and it all adds the piece amount and added before molten steel has gone out;
Here the selenium alloy piece of indication is meant in powder metal selenium, according to the constituent content requirement of steel, adds the powder-material of contained other alloying elements in the steel, mixing briquetting then, and the substance of piece is advisable with 0.1～0.5 kilogram.Selenium piece system obtains after fragmentation, and lumpiness is at 5～30 millimeters, more than two kinds of piece material, all pack with preceding with the aluminium box, every box weighs 5～10 kilograms, and is stand-by as if storing, and tackles in the box and charges into argon or nitrogen, then box sealed.The aluminium tape of noting controlling well is gone into the aluminium amount in the steel;
Molten steel must give deoxidation and final deoxygenation (stainless is 0.8～18 kilogram of/ton steel with the aluminium amount through good, the hot die steel be 0.3～1.2 kilogram of/ton steel with the aluminium amount), control slag, tapping and burn several big links of casting well, avoid and reduce the secondary oxidation of molten steel.
Smelt the stainless steel contain selenium and the hot die steel that contains selenium with the inventive method, good quality of product has reached the level of international similar steel grade, and technical maturity is stable, can produce in batches by the international technical standards tissue.
Embodiment:
Smelt 18-8 type stainless steel or hot die steel with 18 tons of basic electric arc furnaces, adopt pack into method or oxidation style smelting.With silico-calcium or aluminium deoxidation (final deoxygenation is 0.8～1.8 kilogram of/ton steel with aluminium amount stainless steel, and the hot die steel is 0.3～1.2 kilogram of/ton steel), the white slag tapping.Quick grate during tapping, big mouthful dell taps afterwards to go out earlier, adds selenium alloy piece or selenium piece with aluminium box splendid attire in steel teeming ladle while tapping, and the piece material that it all adds selenium added before molten steel has gone out.The content of selenium is controlled to be in the steel:
Add-on (kilogram/ton steel), controlled contents (weight %)
Stainless steel 0.5～1.5 0.10～0.40
Hot die steel 0.5～1.0 0.05～0.35
Molten steel is cast steel ingot with the bottom casting burning under solid flux shielding.Stainless steel air cooling behind the ingot solidification, the hot die steel is cold with the hole.
With the inventive method the 18-8 type stainless steel that contains selenium of smelting and the hot die steel that contains selenium, all above batch more than 60, the examination and test of products and user use confirmation, have good heat resistanceheat resistant adhesive property (being self-lubricating property) and free cutting property, reached the level of international similar steel grade, for example, 18-8 type stainless steel reaches JIs4303-1981, ALsL(1980), the hot die steel reaches the standard-required of JIs4404-1977), remarkable in economical benefits. The rate of recovery of selenium selenium is stablized controlled; During with the selenium alloy piece, the rate of recovery is 20～30%, average 24%; During with the selenium piece, the rate of recovery is 22～35%, average 26%.
Claims (4)
1, a kind of method that in molten steel, adds selenium, it is characterized in that: with alloy block selenium or selenium piece that pulverous metallic selenium is pressed into, two kinds of piece material are packed with the aluminium box respectively, under antivacuum smelting and casting condition, final deoxygenation of molten steel is good, in tapping process the selenium piece is added in the molten steel.
2, a kind of method that adds selenium in molten steel according to claim 1 is characterized in that: selenium pressed metal piece is pulverous metallic selenium and the steel interalloy element powders that need add selenium, and the mixing compacting forms, 0.1～0.5 kilogram of every substance; Selenium piece lumpiness is all packed with the aluminium box at 5～30 millimeters two kinds of piece material, and every box weighs 5～10 kilograms, stores to treat the time spent, charges into argon gas and nitrogen in the box, then box is sealed.
3, the method that adds selenium in molten steel according to claim 1 and 2 is characterized in that: final deoxygenation of molten steel must be good; When making end-deoxidizer with aluminium, stainless steel is 0.8～1.8 kilogram of/ton steel with the aluminium amount, and the hot die steel is 0.3～1.2 kilogram of/ton steel with the aluminium amount.
4, the method that adds selenium in molten steel according to claim 1 is characterized in that: be specially adapted to stainless steel and hot die steel and adopt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88102637 CN1018460B (en) | 1988-04-30 | 1988-04-30 | Process for adding selenium to melten steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88102637 CN1018460B (en) | 1988-04-30 | 1988-04-30 | Process for adding selenium to melten steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1031863A true CN1031863A (en) | 1989-03-22 |
| CN1018460B CN1018460B (en) | 1992-09-30 |
Family
ID=4832236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88102637 Expired CN1018460B (en) | 1988-04-30 | 1988-04-30 | Process for adding selenium to melten steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1018460B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871072A (en) * | 2010-06-02 | 2010-10-27 | 山西金山磁材有限公司 | Method for recovering, smelting and reusing base material in jet mill procedure for sintered NdFeB production |
| CN106367563A (en) * | 2016-09-30 | 2017-02-01 | 武汉钢铁股份有限公司 | Method for smelting Se-containing steel |
| CN110282975A (en) * | 2019-07-08 | 2019-09-27 | 先导薄膜材料（广东）有限公司 | A kind of Germanium selenide target and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705411B (en) * | 2009-11-23 | 2011-10-05 | 兰广湘 | Inclusion application |
-
1988
- 1988-04-30 CN CN 88102637 patent/CN1018460B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871072A (en) * | 2010-06-02 | 2010-10-27 | 山西金山磁材有限公司 | Method for recovering, smelting and reusing base material in jet mill procedure for sintered NdFeB production |
| CN106367563A (en) * | 2016-09-30 | 2017-02-01 | 武汉钢铁股份有限公司 | Method for smelting Se-containing steel |
| CN106367563B (en) * | 2016-09-30 | 2018-06-12 | 武汉钢铁有限公司 | A kind of method for smelting the steel containing Se |
| CN110282975A (en) * | 2019-07-08 | 2019-09-27 | 先导薄膜材料（广东）有限公司 | A kind of Germanium selenide target and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1018460B (en) | 1992-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3807986A (en) | Combination iron and iron oxide briquette and method of using | |
| US3702243A (en) | Method of preparing deoxidized steel | |
| CN102827997A (en) | Calcium carbide ferro-aluminium alloy used for smelting steel, and preparation method thereof | |
| CN1031863A (en) | A kind of method that in molten steel, adds selenium | |
| US3841861A (en) | Addition agent for deoxidizing and recarburizing degassed steel and method employing the same | |
| US3459540A (en) | Production of clean fine grain steels | |
| US6350295B1 (en) | Method for densifying aluminum and iron briquettes and adding to steel | |
| US2082359A (en) | Method of manufacturing cast iron and malleable pig castings employing briquetted iron alloys | |
| US4052202A (en) | Zirconium alloy additive and method for making zirconium additions to steels | |
| CN1110330A (en) | Method for smelting iron alloy containing manganese and silicon in midfrequency electric furnace | |
| SU1682032A1 (en) | Intensifier of steel rimming in mold | |
| CN1424415A (en) | Processing method for smelting nickel based alloy by arc furnace | |
| JP3726258B2 (en) | Fe-Ce-Al alloy for steel making and method for adding Ce to molten steel | |
| SU805634A1 (en) | Method for producing charge for electrical smelting | |
| US3372022A (en) | Process for alloying metallic melts | |
| RU2145356C1 (en) | Method of converter melting with use of prereduced materials | |
| SU1581766A1 (en) | Method of producing an alloy of ferrosilicocalcium with innoculating metals | |
| US4627961A (en) | Calcium-aluminum briquettes | |
| SU1122730A1 (en) | Reducing agent | |
| GB1260822A (en) | Method for the production of cast aluminium-beryllium alloys | |
| SU395475A1 (en) | METHOD OF OBTAINING COMPLEX LIGATURE | |
| RU1788067C (en) | Method of producing low-carbon nickel-containing ferrochromium | |
| SU865924A1 (en) | Method of producing high quality structural steel | |
| SU1076476A1 (en) | Process for producing aluminium bronzes | |
| Shinkai et al. | Used-refractories recycle technology in melting shop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |