CN1559726A - Method of electromagnet continuoces casting of high spped steel composite roller - Google Patents
Method of electromagnet continuoces casting of high spped steel composite roller Download PDFInfo
- Publication number
- CN1559726A CN1559726A CNA2004100045028A CN200410004502A CN1559726A CN 1559726 A CN1559726 A CN 1559726A CN A2004100045028 A CNA2004100045028 A CN A2004100045028A CN 200410004502 A CN200410004502 A CN 200410004502A CN 1559726 A CN1559726 A CN 1559726A
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- Prior art keywords
- casting
- high speed
- magnetic field
- electromagnetic
- speed steel
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Links
- 238000000034 method Methods 0.000 title claims abstract description 5
- 238000005266 casting Methods 0.000 title claims description 13
- 229910000831 Steel Inorganic materials 0.000 title claims description 4
- 239000010959 steel Substances 0.000 title claims description 4
- 239000002131 composite material Substances 0.000 title abstract description 3
- 229910000997 High-speed steel Inorganic materials 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 238000009749 continuous casting Methods 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 12
- 230000005672 electromagnetic field Effects 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000005204 segregation Methods 0.000 description 5
- 238000005275 alloying Methods 0.000 description 4
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- Continuous Casting (AREA)
Abstract
A method for electromagnetic conticasting of composite high-speed steel roller includes such steps as preheating the ball-ground cast iron particles in protective atmosphere, putting them in conticasting mould, externally applying an adjustable MF magnetic field, pouring the molten high-speed steel in the conticasting mould while electromagnetic stirring, and quick cooling.
Description
Technical field
The invention belongs to high-speed steel foundry engieering scope, particularly a kind of electromagnetic continuous-casting compound high speed steel roll method.
Background technology
At present in the production of compound high speed steel roll, adopt the continuous pouring method of forming, can utilize the advantage of ripe continuous manufacturing technology, have bigger potentiality, but because the alloying element content height has significant limitation by improving cooling velocity refinement cast sturcture.It is thick to be mainly as-cast structure, the segregation of alloying element and carbide, and interface bond strength is lower, and the surface quality of casting roll is relatively poor etc.Therefore developing new composite roll preparation method is present high-performance roll development and producer's urgent problem.
Summary of the invention
The purpose of this invention is to provide a kind of electromagnetic continuous-casting compound high speed steel roll method; it is characterized in that: described electromagnetic continuous casting method be with when casting need with the core nodular cast iron be preheating under the protective atmosphere between 300 ℃-600 ℃; put in the continuous casting mould; at this moment 1600 ℃ high speed molten steel is being cast in the cooling frame continuously; in casting; the intermediate frequency magnetic field 2 that adds 50-80Hz in continuous casting equipment 1 outside; its magnetic field intensity is 2000-6000 Gauss; magnetic field intensity is adjustable; being used in the Luo Lunzili liquid towards metal that produces under the effect of electromagnetic field retrains and stirs; fast after the cooling; prepare existing good roller surface quality, have the compound high speed steel roll of excellent properties again.
The invention has the beneficial effects as follows by adding electromagnetic field and prepare compound high speed steel roll, can utilize the effect of contraction and the stirring action of the Luo Lunzili liquid towards metal that under the effect of electromagnetic field, produces, the refinement microstructure, reduce the segregation of alloying element and the gross segregation of carbide, by control cooling velocity, electromagnetic field frequency and magnetic field intensity, improve the bond strength at interface, can reduce casting flaw, improve the surface quality of ingot casting.
Description of drawings
Fig. 1 is an electromagnetic continuous-casting compound high speed steel roll device schematic diagram.
Specific embodiments
The present invention is a kind of electromagnetic continuous-casting compound high speed steel roll method; with when casting need with the core nodular cast iron be preheating under the protective atmosphere between 300 ℃-600 ℃; put in the continuous casting mould; at this moment 1600 ℃ high speed molten steel is being cast in the cooling frame continuously; in casting; the intermediate frequency magnetic field 2 that adds 50-80Hz in continuous casting equipment 1 outside; its magnetic field intensity is 2000-6000 Gauss; magnetic field intensity is adjustable; being used in the Luo Lunzili liquid towards metal that produces under the effect of electromagnetic field retrains and stirs; after the cooling, prepare existing good roller surface quality fast, have the compound high speed steel roll of excellent properties again.
The Luo Lunzili liquid towards metal that produces under the effect of electromagnetic field retrains and stirs, can the refinement microstructure, reduce the segregation of alloying element and the gross segregation of carbide, by control cooling velocity, electromagnetic field frequency and magnetic field intensity.Improve the bond strength at interface, the frequency difference of electromagnetic field, electromagnetic field has different penetrating powers in liquid metal, and frequency is high more, and osmosis is more little, and frequency is low more, and electromagnetic field osmosis in liquid metal is strong more.Utilize the electromagnetic casting of different frequency, obtain the compound high speed steel roll that favorable surface quality combines with serviceability.Can reduce casting flaw, improve the surface quality of ingot casting.
Claims (1)
1. electromagnetic continuous-casting compound high speed steel roll method; it is characterized in that: described electromagnetic continuous casting method be with when casting need with the core nodular cast iron be preheating under the protective atmosphere between 300 ℃-600 ℃; put in the continuous casting mould; at this moment 1600 ℃ high speed molten steel is being cast in the cooling frame continuously; in casting; the intermediate frequency magnetic field (2) that adds 50-80Hz in continuous casting equipment (1) outside; its magnetic field intensity is 2000-6000 Gauss; frequency and magnetic field intensity are adjustable; being used in the Luo Lunzili liquid towards metal that produces under the effect of electromagnetic field retrains and stirs; fast after the cooling; prepare existing good roller surface quality, have the compound high speed steel roll of excellent properties again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100045028A CN1559726A (en) | 2004-02-19 | 2004-02-19 | Method of electromagnet continuoces casting of high spped steel composite roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100045028A CN1559726A (en) | 2004-02-19 | 2004-02-19 | Method of electromagnet continuoces casting of high spped steel composite roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1559726A true CN1559726A (en) | 2005-01-05 |
Family
ID=34439578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100045028A Pending CN1559726A (en) | 2004-02-19 | 2004-02-19 | Method of electromagnet continuoces casting of high spped steel composite roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1559726A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301815C (en) * | 2005-06-01 | 2007-02-28 | 东北大学 | Electromagnetic continuous casting method of composite roller and its casting equipment |
| CN1331626C (en) * | 2006-01-19 | 2007-08-15 | 郑州航空工业管理学院 | Low crack type high speed steel roll and its centrifugal casting method |
| CN100500919C (en) * | 2006-12-21 | 2009-06-17 | 清华大学深圳研究生院 | Novel high carbon high tungsten hig speed steel rolling roller |
| CN101274359B (en) * | 2007-03-28 | 2011-01-19 | 宝山钢铁股份有限公司 | Electromagnetic centrifugal casting quick-cutting steel composite roller operational layer material |
| CN108273980A (en) * | 2018-04-04 | 2018-07-13 | 安徽工业大学 | A kind of preheating consutrode electroslag remelting production composite roll method |
| CN109332656A (en) * | 2018-12-10 | 2019-02-15 | 东北大学 | A kind of prefabricated roller core heating device of continuous casting compound high speed steel roll and its application method |
| CN113664185A (en) * | 2021-07-06 | 2021-11-19 | 惠州学院 | Preparation method for preparing aluminum alloy bimetal composite material by adopting electromagnetic casting |
| CN113909457A (en) * | 2021-10-15 | 2022-01-11 | 中北大学 | Preparation method of bimetal composite material based on electromagnetic liquid-solid forming |
-
2004
- 2004-02-19 CN CNA2004100045028A patent/CN1559726A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301815C (en) * | 2005-06-01 | 2007-02-28 | 东北大学 | Electromagnetic continuous casting method of composite roller and its casting equipment |
| CN1331626C (en) * | 2006-01-19 | 2007-08-15 | 郑州航空工业管理学院 | Low crack type high speed steel roll and its centrifugal casting method |
| CN100500919C (en) * | 2006-12-21 | 2009-06-17 | 清华大学深圳研究生院 | Novel high carbon high tungsten hig speed steel rolling roller |
| CN101274359B (en) * | 2007-03-28 | 2011-01-19 | 宝山钢铁股份有限公司 | Electromagnetic centrifugal casting quick-cutting steel composite roller operational layer material |
| CN108273980A (en) * | 2018-04-04 | 2018-07-13 | 安徽工业大学 | A kind of preheating consutrode electroslag remelting production composite roll method |
| CN109332656A (en) * | 2018-12-10 | 2019-02-15 | 东北大学 | A kind of prefabricated roller core heating device of continuous casting compound high speed steel roll and its application method |
| CN113664185A (en) * | 2021-07-06 | 2021-11-19 | 惠州学院 | Preparation method for preparing aluminum alloy bimetal composite material by adopting electromagnetic casting |
| CN113664185B (en) * | 2021-07-06 | 2022-11-04 | 惠州学院 | Preparation method for preparing aluminum alloy bimetal composite material by adopting electromagnetic casting |
| CN113909457A (en) * | 2021-10-15 | 2022-01-11 | 中北大学 | Preparation method of bimetal composite material based on electromagnetic liquid-solid forming |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |