RU2156313C1 - Method of production of rolled stock - Google Patents
Method of production of rolled stock Download PDFInfo
- Publication number
- RU2156313C1 RU2156313C1 RU2000104811A RU2000104811A RU2156313C1 RU 2156313 C1 RU2156313 C1 RU 2156313C1 RU 2000104811 A RU2000104811 A RU 2000104811A RU 2000104811 A RU2000104811 A RU 2000104811A RU 2156313 C1 RU2156313 C1 RU 2156313C1
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- RU
- Russia
- Prior art keywords
- steel
- final
- production
- cooling
- alloying
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 229910000592 Ferroniobium Inorganic materials 0.000 claims abstract description 6
- 238000005275 alloying Methods 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims abstract description 6
- ZFGFKQDDQUAJQP-UHFFFAOYSA-N iron niobium Chemical compound [Fe].[Fe].[Nb] ZFGFKQDDQUAJQP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims abstract description 3
- 230000008018 melting Effects 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000010955 niobium Substances 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 5
- 229910052758 niobium Inorganic materials 0.000 claims description 5
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 13
- 239000002184 metal Substances 0.000 abstract description 13
- 238000009749 continuous casting Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
Description
Изобретение относится к металлургии, конкретнее к производству проката ответственного назначения для изготовления насосно-компрессорных труб с увеличенным ресурсом эксплуатации. The invention relates to metallurgy, and more particularly to the production of critical rolled products for the manufacture of tubing with an increased service life.
Известен способ производства проката, включающий выплавку стали, разливку, аустенизацию, предварительную и окончательную деформации, термообработку и окончательное охлаждение проката (а.с. N 1611952 СССР, кл. C 21 D 8/00, 1988 - аналог). A known method for the production of rolled metal, including steelmaking, casting, austenization, preliminary and final deformation, heat treatment and final cooling of rolled metal (A.S. N 1611952 USSR, class C 21 D 8/00, 1988 - analogue).
Наиболее близким по технической сущности и достигаемому результату является способ производства проката, включающий выплавку стали, ее легирование и ковшевую обработку, разливку стали, аустенизацию, прокатку слитков, охлаждение блюмов, предварительную и окончательную деформации, а также окончательное охлаждение проката (пат. N 2062793 РФ, кл. C 21 D 8/02, 1995 - прототип). The closest in technical essence and the achieved result is a method of rolling production, including steel smelting, its alloying and ladle processing, steel casting, austenization, rolling of ingots, bloom cooling, preliminary and final deformation, and final cooling of rolled metal (US Pat. N 2062793 RF , CL C 21 D 8/02, 1995 - prototype).
Основными недостатками известных способов (аналога и прототипа) являются недостаточно высокий уровень хладостойкости металла и его низкая коррозионная стойкость. The main disadvantages of the known methods (analogue and prototype) are not a high level of cold resistance of the metal and its low corrosion resistance.
Технический результат изобретения заключается в повышении уровня хладостойкости и коррозионной стойкости металла заготовок. The technical result of the invention is to increase the level of cold resistance and corrosion resistance of the metal blanks.
Технический результат достигается тем, что в способе производства катанных заготовок, включающем выплавку стали, ее легирование и ковшевую обработку, разливку на МНЛЗ, деформацию проката и его окончательное охлаждение, согласно изобретению осуществляют легирование стали ниобием путем ввода феррониобия в ковш во время выпуска плавки из печи и получают сталь следующего химического состава при соотношении ингредиентов, мас.%:
Углерод - 0,3-0,5
Марганец - 0,5-1,2
Кремний - 0,15-0,50
Ниобий - 0,02-0,06
Сера - 0,005-0,045
Фосфор - 0,005-0,045
Железо - Остальное
при этом феррониобий вводят в количестве 0,35-1,80 кг/т стали.The technical result is achieved in that in a method for the production of rolled billets, including steel smelting, its alloying and ladle processing, casting on continuous casting machines, rolling deformation and its final cooling, according to the invention, steel is alloyed with niobium by introducing ferroniobium into the ladle during the melting from the furnace and get the steel of the following chemical composition with a ratio of ingredients, wt.%:
Carbon - 0.3-0.5
Manganese - 0.5-1.2
Silicon - 0.15-0.50
Niobium - 0.02-0.06
Sulfur - 0.005-0.045
Phosphorus - 0.005-0.045
Iron - Else
while ferroniobium is introduced in an amount of 0.35-1.80 kg / t of steel.
Кроме того, сталь дополнительно содержит хром - 0,2-0,5% и(или) никель - 0,2-0,5%, и(или) титан - 0,005-0,025%. In addition, steel additionally contains chromium - 0.2-0.5% and (or) nickel - 0.2-0.5%, and (or) titanium - 0.005-0.025%.
Кроме того, окончательное охлаждение начинают при температуре 750-1000oC и ведут со скоростью 0,5-2,0oC/сек.In addition, the final cooling starts at a temperature of 750-1000 o C and lead at a speed of 0.5-2.0 o C / sec.
Пример осуществления способа. Сталь выплавляли в электропечи. После выпуска металла из печи производили его обработку в ковше и разливали на МНЛЗ. Легирование стали ниобием осуществляли в процессе выпуска металла из печи путем ввода феррониобия в ковш в количестве 1,2 кг/т стали. При внепечной обработке металла в ковше проводили также окончательное раскисление металла, его рафинирование, гомогенизирующую продувку нейтральным газом и модифицирующую обработку кальцием или его сплавами. В результате выплавки и внепечной обработки получили сталь следующего химического состава, мас.%: C - 0,42; Mn - 0,8; Si - 0,17; Nb - 0,03; S - 0,045; Р - 0,045; железо - остальное. Сталь может дополнительно содержать Cr - 0,25 и(или) Ni - 0,25, и(или) Ti - 0,015. После разливки стали на МНЛЗ и резки слитков на заготовки производили их нагрев до температуры 1250-1280oC и прокатку. Предварительно деформацию осуществляют за 7-11 проходов в реверсивном режиме и заканчивают при температуре не менее 1030oC, а окончательную деформацию за 7-9 проходов до получения проката круглого поперечного сечения диаметром 90-150 мм и заканчивают при температуре не менее 900oC. После завершения процесса деформации производили окончательное охлаждение заготовки при температуре 850oC со скоростью 7,0 град/с до температуры окружающей среды.An example implementation of the method. Steel was smelted in an electric furnace. After the metal was discharged from the furnace, it was processed in a ladle and cast in a continuous casting machine. Alloying steel with niobium was carried out in the process of releasing metal from the furnace by introducing ferroniobium into the ladle in an amount of 1.2 kg / t of steel. During out-of-furnace processing of metal in the ladle, the final deoxidation of the metal, its refining, homogenizing purging with a neutral gas, and modifying treatment with calcium or its alloys were also performed. As a result of smelting and after-furnace treatment, steel of the following chemical composition was obtained, wt.%: C - 0.42; Mn — 0.8; Si 0.17; Nb - 0.03; S is 0.045; P - 0.045; iron is the rest. The steel may additionally contain Cr - 0.25 and (or) Ni - 0.25, and (or) Ti - 0.015. After casting steel at the continuous casting machine and cutting ingots into billets, they were heated to a temperature of 1250-1280 o C and rolled. Pre-deformation is carried out in 7-11 passes in reverse mode and completed at a temperature of at least 1030 o C, and the final deformation in 7-9 passes to obtain a rolled circular cross-section with a diameter of 90-150 mm and completed at a temperature of at least 900 o C. After completion of the deformation process, the workpiece was finally cooled at a temperature of 850 ° C at a rate of 7.0 deg / s to ambient temperature.
Испытания механических свойств образцов показали, что использование предлагаемого способа производства катаных заготовок позволяет повысить значения показателей хладостойкости металла на 3-6% и снизить скорость общей коррозии металла до 0,3-0,5 мм/год. Tests of the mechanical properties of the samples showed that the use of the proposed method for the production of rolled billets can increase the values of cold resistance of the metal by 3-6% and reduce the rate of general corrosion of the metal to 0.3-0.5 mm / year.
Claims (3)
Углерод - 0,3 - 0,5
Марганец - 0,5 - 1,2
Кремний - 0,15 - 0,50
Ниобий - 0,02 - 0,06
Сера - 0,005 - 0,045
Фосфор - 0,005 - 0,045
Железо - Остальное
при этом феррониобий вводят в количестве 0,35 - 1,80 кг/т стали.1. Method for the production of rolled billets, including steel smelting, alloying, ladle processing, steel casting, austenization, ingot rolling, cooling, preliminary and final deformation, final cooling, characterized in that the alloying of steel with niobium by introducing ferroniobium into the ladle during production melting from the furnace and get steel of the following chemical composition with a ratio of ingredients, wt.%:
Carbon - 0.3 - 0.5
Manganese - 0.5 - 1.2
Silicon - 0.15 - 0.50
Niobium - 0.02 - 0.06
Sulfur - 0.005 - 0.045
Phosphorus - 0.005 - 0.045
Iron - Else
while ferroniobium is introduced in an amount of 0.35 - 1.80 kg / t of steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2000104811A RU2156313C1 (en) | 2000-02-29 | 2000-02-29 | Method of production of rolled stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2000104811A RU2156313C1 (en) | 2000-02-29 | 2000-02-29 | Method of production of rolled stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU2156313C1 true RU2156313C1 (en) | 2000-09-20 |
Family
ID=20231185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2000104811A RU2156313C1 (en) | 2000-02-29 | 2000-02-29 | Method of production of rolled stock |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2156313C1 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2201972C2 (en) * | 2001-04-23 | 2003-04-10 | Открытое акционерное общество "Северсталь" | Method for making strips of low-alloy steel |
| RU2225887C2 (en) * | 2002-05-22 | 2004-03-20 | Открытое акционерное общество "Северсталь" | Method of production of low-alloyed plate steel |
| RU2237728C1 (en) * | 2003-04-16 | 2004-10-10 | Общество с ограниченной ответственностью "НОРМА-ИМПОРТ ИНСО" | Method of production of continuously cast blank of bars from boron-containing steel for cold die forging of high-strength fasteners |
| RU2238336C1 (en) * | 2003-07-03 | 2004-10-20 | Общество с ограниченной ответственностью "НОРМА-ИМПОРТ ИНСО" | Method for producing from continuously cast rolled bar of low-carbon steel for cold bulk pressing of compound-shaped fastening parts |
| RU2238338C1 (en) * | 2003-08-05 | 2004-10-20 | Общество с ограниченной ответственностью "НОРМА-ИМПОРТ ИНСО" | Method for producing from continuously cast rolled bar with spheroidal structure of low-carbon steel for cold bulk pressing of high-strength fastening parts of compound shape |
| RU2238334C1 (en) * | 2003-04-16 | 2004-10-20 | Общество с ограниченной ответственностью "НОРМА-ИМПОРТ ИНСО" | Method for producing from continuously cast rolled bar with spheroidized structure of boron steel for cold bulk pressing of high-strength fastening parts |
| RU2250925C2 (en) * | 2003-07-01 | 2005-04-27 | ООО "Уральская сталь" | Method of production of rolled blanks |
| RU2270872C1 (en) * | 2005-02-08 | 2006-02-27 | Открытое акционерное общество "Уральская Сталь" (ОАО "Урал Сталь") | Method of production of rolled sheets |
| RU2285053C2 (en) * | 2004-07-13 | 2006-10-10 | Открытое акционерное общество "Оскольский электрометаллургический комбинат" | Method of production of bar from medium-carbon steel |
| RU2285729C2 (en) * | 2004-07-13 | 2006-10-20 | Открытое акционерное общество "Оскольский электрометаллургический комбинат" | Method of production of merchant shapes in form of bars from medium-carbon steel |
| RU2286395C2 (en) * | 2004-07-13 | 2006-10-27 | Общество с ограниченной ответственностью "Интелмет НТ" | Method of production of the rolled section steel in the form of bars made out of the medium-carbon chromium-containing steel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0080809A1 (en) * | 1981-10-31 | 1983-06-08 | Nippon Steel Corporation | A method of making wrought high tension steel having superior low temperature toughness |
| DE3437637A1 (en) * | 1984-10-13 | 1986-04-24 | Thyssen Stahl AG, 4100 Duisburg | Process for producing heavy plate |
| SU1537697A1 (en) * | 1988-01-20 | 1990-01-23 | Научно-исследовательский институт металлургии | Method of producing billets |
| FR2689907A1 (en) * | 1992-04-13 | 1993-10-15 | Toyo Kohan Co Ltd | Process for the production of continuously annealed steel sheet and sheet produced by this process |
| RU2062795C1 (en) * | 1995-02-13 | 1996-06-27 | Акционерное общество открытого типа "Носта" | Method of making rolled sheets |
| RU2062793C1 (en) * | 1995-02-13 | 1996-06-27 | Акционерное общество открытого типа "Носта" | Method of making rolled stock |
-
2000
- 2000-02-29 RU RU2000104811A patent/RU2156313C1/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0080809A1 (en) * | 1981-10-31 | 1983-06-08 | Nippon Steel Corporation | A method of making wrought high tension steel having superior low temperature toughness |
| DE3437637A1 (en) * | 1984-10-13 | 1986-04-24 | Thyssen Stahl AG, 4100 Duisburg | Process for producing heavy plate |
| SU1537697A1 (en) * | 1988-01-20 | 1990-01-23 | Научно-исследовательский институт металлургии | Method of producing billets |
| FR2689907A1 (en) * | 1992-04-13 | 1993-10-15 | Toyo Kohan Co Ltd | Process for the production of continuously annealed steel sheet and sheet produced by this process |
| RU2062795C1 (en) * | 1995-02-13 | 1996-06-27 | Акционерное общество открытого типа "Носта" | Method of making rolled sheets |
| RU2062793C1 (en) * | 1995-02-13 | 1996-06-27 | Акционерное общество открытого типа "Носта" | Method of making rolled stock |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2201972C2 (en) * | 2001-04-23 | 2003-04-10 | Открытое акционерное общество "Северсталь" | Method for making strips of low-alloy steel |
| RU2225887C2 (en) * | 2002-05-22 | 2004-03-20 | Открытое акционерное общество "Северсталь" | Method of production of low-alloyed plate steel |
| RU2237728C1 (en) * | 2003-04-16 | 2004-10-10 | Общество с ограниченной ответственностью "НОРМА-ИМПОРТ ИНСО" | Method of production of continuously cast blank of bars from boron-containing steel for cold die forging of high-strength fasteners |
| RU2238334C1 (en) * | 2003-04-16 | 2004-10-20 | Общество с ограниченной ответственностью "НОРМА-ИМПОРТ ИНСО" | Method for producing from continuously cast rolled bar with spheroidized structure of boron steel for cold bulk pressing of high-strength fastening parts |
| RU2250925C2 (en) * | 2003-07-01 | 2005-04-27 | ООО "Уральская сталь" | Method of production of rolled blanks |
| RU2238336C1 (en) * | 2003-07-03 | 2004-10-20 | Общество с ограниченной ответственностью "НОРМА-ИМПОРТ ИНСО" | Method for producing from continuously cast rolled bar of low-carbon steel for cold bulk pressing of compound-shaped fastening parts |
| RU2238338C1 (en) * | 2003-08-05 | 2004-10-20 | Общество с ограниченной ответственностью "НОРМА-ИМПОРТ ИНСО" | Method for producing from continuously cast rolled bar with spheroidal structure of low-carbon steel for cold bulk pressing of high-strength fastening parts of compound shape |
| RU2285053C2 (en) * | 2004-07-13 | 2006-10-10 | Открытое акционерное общество "Оскольский электрометаллургический комбинат" | Method of production of bar from medium-carbon steel |
| RU2285729C2 (en) * | 2004-07-13 | 2006-10-20 | Открытое акционерное общество "Оскольский электрометаллургический комбинат" | Method of production of merchant shapes in form of bars from medium-carbon steel |
| RU2286395C2 (en) * | 2004-07-13 | 2006-10-27 | Общество с ограниченной ответственностью "Интелмет НТ" | Method of production of the rolled section steel in the form of bars made out of the medium-carbon chromium-containing steel |
| RU2270872C1 (en) * | 2005-02-08 | 2006-02-27 | Открытое акционерное общество "Уральская Сталь" (ОАО "Урал Сталь") | Method of production of rolled sheets |
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