CN103447484A - Method for horizontally continuously casting sections - Google Patents
Method for horizontally continuously casting sections Download PDFInfo
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- CN103447484A CN103447484A CN2013103005642A CN201310300564A CN103447484A CN 103447484 A CN103447484 A CN 103447484A CN 2013103005642 A CN2013103005642 A CN 2013103005642A CN 201310300564 A CN201310300564 A CN 201310300564A CN 103447484 A CN103447484 A CN 103447484A
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Abstract
The invention discloses a method for horizontally continuously casting sections. The method is characterized by comprising steps of A, smelting metal in an intermediate-frequency smelting furnace and preserving heat of the metal in the intermediate-frequency smelting furnace; B, enabling a bottom side-surface crystallizer to quickly cool melt via a water cooling device; C, continuously dragging out blanks by a traction apparatus; D, cutting the blanks by a cutting machine according to certain length requirements. The blanks can be condensed to form the sections. The method has the advantages that casting defects which can be frequently caused by a conventional casting method are prevented, crystal grains of the sections are small, the sections are compact in texture, good in mechanical property, accurate in size, low in machining allowance, uniform in hardness and good in machining performance, and the surfaces of the sections are smooth.
Description
Technical field
The present invention relates to a kind of section bar horizontal continuous casting method.
Background technology
The routine casting method often produces casting flaw, as common deficiencies such as slag inclusion, burning into sand, sand holes, pores, and shrinkage cavity and the defect such as loose, and in the forging type process, because molten iron is cooled and solidified in sandbox, cooling velocity is slow, and nucleation ability is poor, make section bar coarse grains, tissue looseness, poor mechanical property, the surface essence is rough, and size is inaccurate, and allowance is large, hardness is irregular, poor processability.
Summary of the invention
For solving above-mentioned existing shortcoming, main purpose of the present invention is to provide a kind of section bar horizontal continuous casting method of practicality, the casting flaw of having avoided the routine casting method often to produce, crystal grain is tiny, dense structure, mechanical property is good, any surface finish, size is accurate, and allowance is little, hardness is even, good processability.
For reaching above-described purpose, a kind of section bar horizontal continuous casting method of the present invention is taked following technical scheme:
A kind of section bar horizontal continuous casting method, is characterized in that, comprises the following methods step:
A: by metal melting and insulation in mid-frequency melting furnace;
B: the crystallizer by bottom sides is cooling fast by water-cooling apparatus by liquation;
C: the blank that will be condensed into section bar through draw-gear pulls out continuously;
D: blank is cut by the certain-length requirement by cutting machine.
Adopt as above the present invention of technical scheme, there is following beneficial effect:
The casting flaw of having avoided the routine casting method often to produce, crystal grain is tiny, dense structure, mechanical property is good, any surface finish, size is accurate, and allowance is little, and hardness is even, good processability.
The specific embodiment
In order to further illustrate the present invention, below in conjunction with embodiment, further describe:
A kind of section bar horizontal continuous casting method of the present invention, is characterized in that, comprises following methods step: A: by metal melting and insulation in mid-frequency melting furnace; B: the crystallizer by bottom sides is cooling fast by water-cooling apparatus by liquation; C: the blank that will be condensed into section bar through draw-gear pulls out continuously; D: blank is cut by the certain-length requirement by cutting machine.
A kind of section bar horizontal continuous casting method of the present invention, comprise copper, aluminium, steel, iron casting section bar horizontal continuous casting method, the casting flaw of having avoided the routine casting method often to produce, in the section bar horizontal casting, due to what adopt, it is the closed crystallizer of rising pouring, realize that fully scum separates, therefore molded shapes not there will be traditional sand casting common deficiencies such as slag inclusion, burning into sand, sand holes, pore.Simultaneously, because the molten metal in crystallizer is communicated with all the time with the molten metal in holding furnace, realized crystallization and freezing under higher static pressure all the time, feeding is abundant, and therefore, section bar inside can not produce shrinkage cavity and the defect such as loose.Crystal grain is tiny, dense structure, mechanical property is good, in the horizontal casting process, because molten metal is cooled and solidified in water mold, cooling velocity is high, nucleation ability is strong, make that section bar crystal grain is tiny, dense structure, mechanical property be good, why is referred to as " compact metal material ", just is being based on this distinguishing feature of dense structure.Any surface finish, size is accurate, and allowance is little, and section bar is moulding in graphite cannula.The refractoriness of graphite is high, with molten metal, do not infiltrate, and the endoporus of graphite cannula, by the machining moulding, can have very high precision, therefore, and the cast iron profile material any surface finish, size is accurate, is easy to directly be processed into part.Hardness is even, and good processability is compared with sand-cast, and the section bar that this process is produced has the characteristics of high strength soft, and the even tissue densification, therefore, has good machinability.
The present invention is by special Medium frequency induction coil and electromagnetic stirrer coil, pass through intermediate frequency power supply, the modern continuous casting electromagnetic technology that the electromagnetic agitation of application time-varying magnetic field and steady magnetic field, electromagnetic braking and soft-contact electromagnetic continuous casting three organically combine, at the furnace bottom lateral opening, carry out the horizontal continuity condensation, and carry out the process of traction continuously.Electromagnetic agitation refers to, high frequency magnetic field has function composite by electromagnetic stirring to the molten metal in crystallizer, makes tough scull grain refinement, and the eddy-current heating of electromagnetic field to strand reduced the position of strand initial solidification and the thermograde of tough scull.The contact condition that the electromagnetic force of electromagnetic field of high frequency output and Joule heat can improve meniscus and crystallizer, make the meniscus disturbance that causes due to double vibrations be alleviated the impact of tough scull, and the equiax crystal district of strand is enlarged, reached the purpose of controlling the continuous casting billet initial solidification, improving slab quality.Electromagnetic braking refers to, when liquid metal is flowed through magnetic induction intensity direction and the perpendicular constant magnetic field of its flow velocity direction, according to Ohm's law, as in the liquid metal of electric conductor, therefore producing induced current, the reciprocation of induced current and constant magnetic field produces again the Lao Lunzili with the flow velocity opposite direction in liquid metal, thereby the mobile of liquid metal is suppressed, the basic principle of Here it is electromagnetic brake technology, electromagnetic braking makes the molten steel beam reduce the scouring intensity of mould at narrow, this is conducive to be avoided occurring strand initial set base shell by phenomenons such as molten metal hot-fluid remeltings, thereby reduce the coagulation defects such as strand transverse fissure.And electromagnetic braking makes meniscus molten metal temperature in crystallizer rise 5.8%, is conducive to the change slag on molten steel in mold surface.Soft-contact electromagnetic continuous casting refers to, outside the soft-contact mould with magnetic and cumulative structure, inductor is installed, making high frequency magnetic field see through crystallizer acts near liquid level, form inductive loop in the meniscus of liquid metal, the liquid metal at meniscus place has become current－carrying conductor, current－carrying conductor interacts with the high frequency magnetic field that inductor produces again, it is subject to perpendicular to treating the just electromagnetic force of scull of base, electromagnetic force and crystallizer support the metal at meniscus place jointly, thereby reduce contact and mold friction between molten metal and crystallizer, make the seepage channel of covering slag liquid unobstructed, and solidify with this understanding, fundamentally improved the surface quality of strand.
Electromagnetic casting method is compared with the casting of crystallizer with tradition, has the following advantages: 1, extended the service life of mold, reduced the driving force of withdrawal straightening machine; 2, surface quality of continuous castings improves, and casting speed, productivity ratio improve, the more complicated foundry goods of castable appearance shape; 3, avoid using the lubricating oil feed system, thus many technological difficulties of avoiding bringing thus; 4, crystal grain is tiny, and component segregation is few, organizes more even.
Claims (1)
1. a section bar horizontal continuous casting method, is characterized in that, comprises the following methods step:
A: by metal melting and insulation in mid-frequency melting furnace;
B: the crystallizer by bottom sides is cooling fast by water-cooling apparatus by liquation;
C: the blank that will be condensed into section bar through draw-gear pulls out continuously;
D: blank is cut by the certain-length requirement by cutting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103005642A CN103447484A (en) | 2013-07-18 | 2013-07-18 | Method for horizontally continuously casting sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103005642A CN103447484A (en) | 2013-07-18 | 2013-07-18 | Method for horizontally continuously casting sections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103447484A true CN103447484A (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103005642A Pending CN103447484A (en) | 2013-07-18 | 2013-07-18 | Method for horizontally continuously casting sections |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583674A (en) * | 2016-11-15 | 2017-04-26 | 绍兴创举汽车同步器齿环有限公司 | Continuous casting cutting forming technology for copper sectional material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3630266A (en) * | 1969-11-21 | 1971-12-28 | Technicon Corp | Continuous casting process |
| CN2589125Y (en) * | 2002-11-04 | 2003-12-03 | 武安市兴龙型材铸造有限公司 | Hollow cast iron section bar and horizontal continuous casting apparatus |
| CN201105315Y (en) * | 2007-10-26 | 2008-08-27 | 西安理工大学 | Device for horizontal continuous casting of cast-iron pipe profile |
| CN201997679U (en) * | 2011-06-23 | 2011-10-05 | 曲沃县民政福利企业有限公司 | Horizontal continuous casting heat preserving furnace |
| CN102974784A (en) * | 2012-12-10 | 2013-03-20 | 陕西华安铸铁型材有限公司 | Continuous casting production device of cast iron bar with thick and large cross section |
-
2013
- 2013-07-18 CN CN2013103005642A patent/CN103447484A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3630266A (en) * | 1969-11-21 | 1971-12-28 | Technicon Corp | Continuous casting process |
| CN2589125Y (en) * | 2002-11-04 | 2003-12-03 | 武安市兴龙型材铸造有限公司 | Hollow cast iron section bar and horizontal continuous casting apparatus |
| CN201105315Y (en) * | 2007-10-26 | 2008-08-27 | 西安理工大学 | Device for horizontal continuous casting of cast-iron pipe profile |
| CN201997679U (en) * | 2011-06-23 | 2011-10-05 | 曲沃县民政福利企业有限公司 | Horizontal continuous casting heat preserving furnace |
| CN102974784A (en) * | 2012-12-10 | 2013-03-20 | 陕西华安铸铁型材有限公司 | Continuous casting production device of cast iron bar with thick and large cross section |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583674A (en) * | 2016-11-15 | 2017-04-26 | 绍兴创举汽车同步器齿环有限公司 | Continuous casting cutting forming technology for copper sectional material |
| CN106583674B (en) * | 2016-11-15 | 2019-07-16 | 绍兴创举汽车同步器齿环有限公司 | A kind of continuous casting excision forming equipment of copper profile |
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Application publication date: 20131218 |
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| WD01 | Invention patent application deemed withdrawn after publication |