SU340311A1 - Method of steel alloying - Google Patents
Method of steel alloyingInfo
- Publication number
- SU340311A1 SU340311A1 SU7001498251A SU1498251A SU340311A1 SU 340311 A1 SU340311 A1 SU 340311A1 SU 7001498251 A SU7001498251 A SU 7001498251A SU 1498251 A SU1498251 A SU 1498251A SU 340311 A1 SU340311 A1 SU 340311A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- lead
- particles
- steel
- jet
- protective
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 12
- 239000010959 steel Substances 0.000 title claims description 12
- 238000000034 method Methods 0.000 title claims description 7
- 238000005275 alloying Methods 0.000 title claims description 3
- 239000002245 particle Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 102100035475 Blood vessel epicardial substance Human genes 0.000 claims 1
- 101001094636 Homo sapiens Blood vessel epicardial substance Proteins 0.000 claims 1
- 101000608194 Homo sapiens Pyrin domain-containing protein 1 Proteins 0.000 claims 1
- 101000595404 Homo sapiens Ribonucleases P/MRP protein subunit POP1 Proteins 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000005266 casting Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
Description
Изобретение относитс к сталеплавильному производству.This invention relates to steelmaking.
Известен способ легировани стали свинцом, основанный на введении контролируемого потока твердых частиц свинца в струю стали.There is a known method of alloying steel with lead, based on the introduction of a controlled flow of solid particles of lead into a steel stream.
Недостатком указанного способа вл етс , то, что в момент введени свинца в струю стали происходит интенсивное его окисление и возгон, которые привод т к значительным потер м свинца. Дл уменьшени потерь примен ют высокую скорость подачи свинца в струю стали (от 20 м/с и более ) , что позвол ет уменыиить потери свинца за счет окислени на границе металл-воздух. Однако применение высоких скоростей подачи дроби возможно только при значительном диаметре струи стали (высокой скорости разливки). В случае разливки стали с малыми скорост ми и, следовательно , с малым диаметром струи при скорости дробинок, приближающейс к 20 М/С, наблюдаетс частичное их про летание через струю и по ее кра м. Это приводит к резкому увеличению по терь свинца.The disadvantage of this method is that, at the moment of lead being introduced into the steel stream, it is intensively oxidized and sublimated, which leads to significant loss of lead. To reduce losses, a high feed rate of lead into the steel stream (from 20 m / s and more) is used, which allows to reduce lead losses due to oxidation at the metal-air interface. However, the use of high feed rates of shot is possible only with a significant diameter of the steel stream (high casting speed). In the case of steel casting at low speeds and, consequently, with a small jet diameter at a speed of pellets approaching 20 M / C, they are partially flown through the jet and along its edges. This leads to a sharp increase in the loss of lead.
л высокой упругостью паров окиси свинца (около 10 атм при температура разливки), предлагаетс способ производства стали, легированной свинцом , при котором подавл етс его окисление в момент ввода. Легирование производ т контролируекым потоком свинцовых частиц, покрытых защитным слоем. Дл этой цели.могут примен тьс вещества, создазо11у1е защитно-восстановительную атмосферу (по аналогии с защитными смазкё1ми дл изложниц) Наиболее хорошие результаты получают при нанесении на частицы свинца графитового покрыти вследствие образовани защитной восстановительной атмосферы в зоне контакта частиц свинца с жидкой сталью.l high vapor pressure of lead oxide (about 10 atm at casting temperature), offers a method for the production of lead-alloyed steel, which suppresses its oxidation at the time of entry. The doping is carried out with a controlled flow of lead particles coated with a protective layer. For this purpose, substances that create a protective-reducing atmosphere (by analogy with protective lubricants for molds) can be used. The best results are obtained when a graphite coating is applied to the particles of lead due to the formation of a protective reducing atmosphere in the zone of contact of particles of lead with liquid steel.
Более полное усвоение меташлом свинца, покрытого защитным слоем (например графитом), достигаетс также за счет снижени скорости подачи свинца в струю стгши менее 20 м/С, Предпочтительна скорость частиц свинца 2-5 м/С.A more complete assimilation by lead metashers coated with a protective layer (for example, graphite) is also achieved by reducing the lead feed rate into a jet stream of less than 20 m / s. The preferred speed of lead particles is 2-5 m / C.
Применение дроби с защитным графитовым покрытием позвол ет получать высокий уровень усвоени во всех случа х , в том числе при разливке с малыми скорост ми (малым диаметромThe use of shot with a protective graphite coating allows to obtain a high level of assimilation in all cases, including when casting at low speeds (small diameter
струи) , b проведенных опытах с разливкой стали через стакан диаметром 30-60 мм усвоение свинца, покрытого графитом и подаваемого со скоростью 2-5 М/С, в среднем -tJа 10% вьи е, чем при подаче частиц свинца без защитного покрыти со окоростью 20 м/с и Bfcoue.jet), b experiments carried out with steel casting through a glass with a diameter of 30-60 mm assimilation of lead coated with graphite and fed at a speed of 2-5 M / S, on average -tJa 10%, than with the supply of lead particles without a protective coating bore 20 m / s and Bfcoue.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7001498251A SU340311A1 (en) | 1970-12-24 | 1970-12-24 | Method of steel alloying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7001498251A SU340311A1 (en) | 1970-12-24 | 1970-12-24 | Method of steel alloying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU340311A1 true SU340311A1 (en) | 1977-11-25 |
Family
ID=20460876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU7001498251A SU340311A1 (en) | 1970-12-24 | 1970-12-24 | Method of steel alloying |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU340311A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2148658C1 (en) * | 1998-12-11 | 2000-05-10 | Закрытое акционерное общество "МАГЛЮК-Сервис" | Method of introducing low-melting and readily oxidizable alloying components into metal melts |
| RU2391411C2 (en) * | 2008-07-30 | 2010-06-10 | Закрытое акционерное общество "Институт стандартных образцов" | Method of high-machinability steel reinforcement by cutting, and steel blank item obtained by claimed method |
-
1970
- 1970-12-24 SU SU7001498251A patent/SU340311A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2148658C1 (en) * | 1998-12-11 | 2000-05-10 | Закрытое акционерное общество "МАГЛЮК-Сервис" | Method of introducing low-melting and readily oxidizable alloying components into metal melts |
| RU2391411C2 (en) * | 2008-07-30 | 2010-06-10 | Закрытое акционерное общество "Институт стандартных образцов" | Method of high-machinability steel reinforcement by cutting, and steel blank item obtained by claimed method |
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