SU539948A1 - Method for the production of high-strength cast iron - Google Patents
Method for the production of high-strength cast ironInfo
- Publication number
- SU539948A1 SU539948A1 SU2022528A SU2022528A SU539948A1 SU 539948 A1 SU539948 A1 SU 539948A1 SU 2022528 A SU2022528 A SU 2022528A SU 2022528 A SU2022528 A SU 2022528A SU 539948 A1 SU539948 A1 SU 539948A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- melt
- cast iron
- iron
- strength cast
- production
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 11
- 229910001018 Cast iron Inorganic materials 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims 2
- 230000008018 melting Effects 0.000 claims 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Description
,(54) СПОСОБ ПРОИЗВОДСТВА ВЫСОКОПРОЧНОГО ЧУГУНА, (54) METHOD OF MANUFACTURE OF HIGH-STRENGTH IRON
Изобретение относитс к черной металлургии , в частности к способам производства высокопрочного чугуна с глобул рным графитом, и может примен тьс на. литейных заводах и в чугунолитейных цехах машиностроительных заводов.The invention relates to ferrous metallurgy, in particular to methods for producing high-strength cast iron with globular graphite, and can be applied to. foundries and iron foundries of machine-building plants.
Известны способы производства чугуна с глобул рным графитом за счет модифицировани расплава РЗМ или магнием.Methods are known for producing iron with globular graphite by modifying a melt of rare-earth metals or magnesium.
По известному способу шихту проплавл ют в печи с основной футеровкой и модифицируют расплав магнием.According to a known method, the charge is melted in a furnace with a base lining and the melt is modified with magnesium.
Однако эффективность известного способа тем выше, чем выше углеродный эквивалент ( Si), тогда как прочностные свойства чугуна повышаютс со снижением содержани углерода и кремни . Кроме того, недостатком этого способа вл етс наличие пироэффекта при введении магни и необходимость последующей термической обработки чугуна.However, the efficiency of the known method is the higher, the higher the carbon equivalent (Si), while the strength properties of cast iron increase with a decrease in the content of carbon and silicon. In addition, the disadvantage of this method is the presence of a pyroeffect when magnesium is introduced and the need for subsequent heat treatment of the cast iron.
Цель изобретени - обеспечение образовани графита глобул рной формы в чугунах в области с низким содержанием углерода и кремни и повышение механических свойств, а также получение высокопрочного чугуна без модифицировани его магнием, РЗМ.The purpose of the invention is to ensure the formation of graphite of a globular shape in cast irons in areas with a low carbon and silicon content and to increase the mechanical properties, as well as to obtain high strength cast iron without modifying it with magnesium and rare earth metals.
Это достигаетс тем, что плавку ведут в печи с основной, например магнезитовой, футеровкой под шлаком € высокой основностью и в расплав, перегретый до 1520-15бО°С, ввод т алюминий при достижении суммарного содержани углерода и кремни 2,7- 3,3 вес. % (при содержании кремни «е более 0,3 вес. %), с последуюш,ей выдержкой расплава в течение 10-30 мин, а модифицируют расплав в ковше силикокальцием (или другими графитизирующими добавками), вводимым в количестве 1,0-1,5% от веса жидкого металла. В качестве шихтовых материаловThis is achieved by the fact that the smelting is carried out in a furnace with a basic, for example magnesite, lining under the slag with high basicity and in the melt, overheated to 1520-15 ° C, aluminum is introduced when the total carbon and silicon content reaches 2.7-3.3 weight. % (when the content of silicon "e more than 0.3 wt.%), followed by her exposure of the melt for 10-30 minutes, and modify the melt in the ladle silicocalcium (or other graphitizing additives), introduced in the amount of 1.0-1 , 5% by weight of the liquid metal. As batch materials
можно использовать до 100% стального скрапа , передельный или литейный чугун.up to 100% steel scrap, pig iron or foundry iron can be used.
Испытани Показали, что предлагаемый способ позвол ет получать высокопрочные чугуны с перлитной, феррито-перлитной, бейнитной матрицей и глобул рными включени ми графита с пределом прочности «а разрыв до 100 кгс/мм и твердостью 160-350 кг/мм в литом состо нии. Кроме того, получаемый по данному способу чугун обладает высокой термостойкостью и ростоустойчивостью.Tests It has been shown that the proposed method makes it possible to produce high-strength cast iron with pearlitic, ferritic-pearlitic, bainitic matrix and globular inclusions of graphite with a tensile strength of up to 100 kgf / mm and a hardness of 160-350 kg / mm in the cast state. In addition, obtained in this method, the cast iron has a high heat resistance and high stability.
Предлагаемый способ целесообразно осуш ,ествл ть в дуговых, а также индукционных печах.The proposed method is advisable to dry out, to arc in the arc, as well as induction furnaces.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2022528A SU539948A1 (en) | 1974-05-12 | 1974-05-12 | Method for the production of high-strength cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2022528A SU539948A1 (en) | 1974-05-12 | 1974-05-12 | Method for the production of high-strength cast iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU539948A1 true SU539948A1 (en) | 1976-12-25 |
Family
ID=20584002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU2022528A SU539948A1 (en) | 1974-05-12 | 1974-05-12 | Method for the production of high-strength cast iron |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU539948A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2181775C1 (en) * | 2001-03-13 | 2002-04-27 | Мулюков Талгат Фаритович | Method for making cast iron with different type of graphite |
| RU2201967C2 (en) * | 2001-03-26 | 2003-04-10 | ОАО "Камский литейный завод" | Method of production of iron with compact graphite inclusions |
-
1974
- 1974-05-12 SU SU2022528A patent/SU539948A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2181775C1 (en) * | 2001-03-13 | 2002-04-27 | Мулюков Талгат Фаритович | Method for making cast iron with different type of graphite |
| RU2201967C2 (en) * | 2001-03-26 | 2003-04-10 | ОАО "Камский литейный завод" | Method of production of iron with compact graphite inclusions |
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