CN102069174A - Method for producing centrifugal electroslag smelting and casting double-base composite roller - Google Patents

Method for producing centrifugal electroslag smelting and casting double-base composite roller Download PDF

Info

Publication number
CN102069174A
CN102069174A CN2009101856776A CN200910185677A CN102069174A CN 102069174 A CN102069174 A CN 102069174A CN 2009101856776 A CN2009101856776 A CN 2009101856776A CN 200910185677 A CN200910185677 A CN 200910185677A CN 102069174 A CN102069174 A CN 102069174A
Authority
CN
China
Prior art keywords
slag
iron
liquid
centrifugal
roll
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2009101856776A
Other languages
Chinese (zh)
Inventor
张国庆
章晨希
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TONGLING DAMING FORGING CAST CO Ltd
Original Assignee
TONGLING DAMING FORGING CAST CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TONGLING DAMING FORGING CAST CO Ltd filed Critical TONGLING DAMING FORGING CAST CO Ltd
Priority to CN2009101856776A priority Critical patent/CN102069174A/en
Publication of CN102069174A publication Critical patent/CN102069174A/en
Pending legal-status Critical Current

Links

Abstract

The invention discloses a method for producing a centrifugal electroslag smelting and casting double-base composite roller, which is characterized by comprising the following steps: (1) preparing slag liquid, namely melting 55 to 65 percent of calcium fluoride, 25 to 35 percent of aluminum oxide and 5 to 15 percent of magnesium oxide in a furnace to obtain slag liquid, and melting metal iron to cast a consumable electrode; (2) pouring the slag liquid into the furnace, smelting the electroslag by melting the consumable electrode gradually into molten iron, allowing the molten iron to enter the furnace, and obtaining mixed liquid of slag and iron; (3), injecting the mixed liquid of slag and iron into a quantitative pouring ladle to perform smelting treatment, and injecting the mixed liquid of slag and iron into a centrifugal smelting machine to fill the mixed liquid of slag and iron into a mold and cure the mixed liquid of slag and iron under a centrifugal force to obtain a roller shell blank; and (4) clearing the slag on the inner surface of the roller shell blank, performing core filling treatment on the roller shell with molten iron, and obtaining the centrifugal electroslag smelting and casting double-base composite roller. The roller produced by the invention has high quality.

Description

A kind of production method of centrifugal electroslag smelting casting double-basis composite roll
Technical field
The present invention relates to a kind of production method of roll, especially a kind of production method of centrifugal electroslag smelting casting composite roll.
Background technology
The medium and small roll annual production of China is in nearly 80 families that have more than 3000 tons, these enterprises all adopt the mode of well-established law casting and centrifugal casting to produce roll, on manufacture and content, be in the level of " equal to each other " mostly, product begins to form market harmful competition situation already, however, the production average profit of medium and small roll still can maintain on 10%~35% the basis, and this respect drop mainly is embodied on the height of raw-material supply channel and roll product percent of pass.
In order to satisfy heavy industry, equipment manufacture needs to maximization, high efficiency and the development of product stabilized form, the steel industry Metallurgical Enterprise wishes that urgently mechanical property, the serviceability of roll can obtain further to improve, and the quality of breaker roll product, class, quality stability, reliability and security have proposed more strict requirement.Therefore, the research institution of home and abroad, manufacturer have all dropped into great amount of manpower and material resources in this respect, to seek technological innovation, seek more high-quality roll product and come out.
Centrifugal casting is that molten metal is passed through to inject centrifugal casting machine, and its centrifugal action lower charging type in rotation is at a high speed solidified, with its dense structure of centre spinning forming rolls.
Electroslag smelting casting is that electroslag is separated out heat (slag thermal resistance) by consutrode and fusing slag bath, and consutrode is melted gradually, and liquation pools and drips, and falls into metal bath by slag bath and obtains refining.Because steel, slag reaction temperature height (1700~1900 ℃), steel, slag fully contact, and refining process is strengthened in steel, the vibration of slag interface capillary, and the slag bath strong agitation, make that non-metallic inclusion is slag absorption and fusion in the molten steel.By physical-chemical reaction, pernicious gas in the molten steel (O, N, H) and harmful element (S, P, Pb, Bi, Sn) are fully removed.
At present, centrifugal casting and electroslag smelting casting have been widely used in roll produces, but because the difference of melt cinder composition, the roller performance of producing is different, and quality is all not ideal enough.
Summary of the invention
The present invention just provides a kind of roll quality, class, roll that quality is higher.
The technical solution used in the present invention is: a kind of production method of centrifugal electroslag smelting casting double-basis composite roll is characterized in that it may further comprise the steps:
(1), preparation slag liquid, get the calcirm-fluoride of (55-65) % and (25-35) % alundum (Al and (5-15) magnesia of % place fusing slagging liquid in the stove, get metallic iron and cast with the fusing back and make consutrode;
(2), slag liquid is poured in the stove, adopt the fusing consutrode to carry out electroslag melting, make consutrode be fused into iron liquid gradually and enter in the stove, slag iron mixed liquor;
(3), slag iron mixed liquor is injected quantitative pouring ladle and carry out the metallurgy processing; Slag iron mixed liquor is injected centrifugal casting machine fill type and solidifying under centrifugal force, must body of roll housing blank;
(4) behind the cleaning body of roll housing blank inner surface slag thing, fill out core with iron liquid breaker roll body of roll housing and handle, get centrifugal electroslag smelting casting double-basis composite roll.
Adopt technique scheme, the slag body that is formed by calcirm-fluoride, magnesia and alundum (Al fusing back can be removed the gaseous impurity in the molten iron, can be incubated molten iron again simultaneously, it is more reasonable to remove cast the once more performance of the product that obtains of molten iron behind the impurity.
The invention has the beneficial effects as follows: various types of roll internal structures that the present invention casting obtains are not found segregation phenomena, and the non-metallic inclusion in the metal is disperse, is spherical basically, and distributes very evenly on the whole volume of foundry goods.Therefore the performance of roll is good, and quality is higher.
The specific embodiment
A kind of production method of centrifugal electroslag smelting casting double-basis composite roll, it may further comprise the steps:
(1), preparation slag liquid, get the alundum (Al of 60% calcirm-fluoride and 30% and 10% magnesia and place fusing slagging liquid in the coreless induction furnace, get metallic iron and make the fusing consutrode with coreless induction furnace fusing back casting;
(2), slag liquid is poured in the electroslag graphite crucible stove, make consutrode be fused into iron liquid gradually and enter in the stove, slag iron mixed liquor;
(3), the slag iron mixed liquor in the graphite crucible stove is injected quantitative pouring ladle and carry out the metallurgy processing; With quantitative pouring ladle slag iron mixed liquor is injected centrifugal casting machine and fill type and solidifying under centrifugal force, must body of roll housing blank;
(4) table and behind the slag thing in the cleaning body of roll housing blank is filled out core with iron liquid to body of roll housing blank and is handled, and gets centrifugal electroslag smelting casting double-basis composite roll.
Filling out core handles and can adopt different metallic iron liquid to fill out core and handle according to different needs.

Claims (1)

1. the production method of a centrifugal electroslag smelting casting double-basis composite roll is characterized in that it may further comprise the steps:
(1), preparation slag liquid, get the calcirm-fluoride of (55-65) % and (25-35) % alundum (Al and (5-15) magnesia of % place fusing slagging liquid in the stove, get metallic iron and cast with the fusing back and make consutrode;
(2), slag liquid is poured in the stove, adopt the fusing consutrode to carry out electroslag melting, make consutrode be fused into iron liquid gradually and enter in the stove, slag iron mixed liquor;
(3), slag iron mixed liquor is injected quantitative pouring ladle and carry out the metallurgy processing; Slag iron mixed liquor is injected centrifugal casting machine fill type and solidifying under centrifugal force, must body of roll housing blank;
(4) behind the cleaning body of roll housing blank inner surface slag thing, fill out core with iron liquid breaker roll body of roll housing and handle, get centrifugal electroslag smelting casting double-basis composite roll.
CN2009101856776A 2009-11-24 2009-11-24 Method for producing centrifugal electroslag smelting and casting double-base composite roller Pending CN102069174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009101856776A CN102069174A (en) 2009-11-24 2009-11-24 Method for producing centrifugal electroslag smelting and casting double-base composite roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009101856776A CN102069174A (en) 2009-11-24 2009-11-24 Method for producing centrifugal electroslag smelting and casting double-base composite roller

Publications (1)

Publication Number Publication Date
CN102069174A true CN102069174A (en) 2011-05-25

Family

ID=44028051

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009101856776A Pending CN102069174A (en) 2009-11-24 2009-11-24 Method for producing centrifugal electroslag smelting and casting double-base composite roller

Country Status (1)

Country Link
CN (1) CN102069174A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102416463A (en) * 2011-12-08 2012-04-18 沈阳市盛华特种铸造有限公司 Electroslag fusion casting manufacturing method for annular plate of hydraulic generator
CN103008617A (en) * 2012-12-27 2013-04-03 江西省科学院应用物理研究所 Method for preparing high-speed steel composite roll for hot rolling
CN109590452A (en) * 2019-01-23 2019-04-09 铜陵市大成轧辊有限责任公司 A kind of biradical composite roll preparation process based on centrifugation electroslag smelting casting
CN110614353A (en) * 2018-06-20 2019-12-27 无锡市东明冠特种金属制造有限公司 Method for reducing machining allowance of inner cavity of centrifugal cast tube
CN110964976A (en) * 2019-11-13 2020-04-07 中煤张家口煤矿机械有限责任公司 Steel for chain wheel and preparation method and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1069212A (en) * 1991-08-12 1993-02-24 北京科技大学 Induction centrifugal electroslag casting abnormity hollow casting
CN1280042A (en) * 2000-08-11 2001-01-17 钢铁研究总院 Continuous casting equipment and method for composite roller
CN1339342A (en) * 2001-08-31 2002-03-13 李宗祥 Method for producing high speed steel roll ring
CN101450376A (en) * 2008-12-26 2009-06-10 沈阳铸造研究所 Turbine wicket gate double-refining casting technique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1069212A (en) * 1991-08-12 1993-02-24 北京科技大学 Induction centrifugal electroslag casting abnormity hollow casting
CN1280042A (en) * 2000-08-11 2001-01-17 钢铁研究总院 Continuous casting equipment and method for composite roller
CN1339342A (en) * 2001-08-31 2002-03-13 李宗祥 Method for producing high speed steel roll ring
CN101450376A (en) * 2008-12-26 2009-06-10 沈阳铸造研究所 Turbine wicket gate double-refining casting technique

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102416463A (en) * 2011-12-08 2012-04-18 沈阳市盛华特种铸造有限公司 Electroslag fusion casting manufacturing method for annular plate of hydraulic generator
CN102416463B (en) * 2011-12-08 2014-04-16 沈阳市盛华特种铸造有限公司 Electroslag fusion casting manufacturing method for annular plate of hydraulic generator
CN103008617A (en) * 2012-12-27 2013-04-03 江西省科学院应用物理研究所 Method for preparing high-speed steel composite roll for hot rolling
CN103008617B (en) * 2012-12-27 2014-09-10 江西省科学院应用物理研究所 Method for preparing high-speed steel composite roll for hot rolling
CN110614353A (en) * 2018-06-20 2019-12-27 无锡市东明冠特种金属制造有限公司 Method for reducing machining allowance of inner cavity of centrifugal cast tube
CN109590452A (en) * 2019-01-23 2019-04-09 铜陵市大成轧辊有限责任公司 A kind of biradical composite roll preparation process based on centrifugation electroslag smelting casting
CN109590452B (en) * 2019-01-23 2021-05-11 铜陵市大成轧辊有限责任公司 Double-base composite roller preparation process based on centrifugal electroslag casting
CN110964976A (en) * 2019-11-13 2020-04-07 中煤张家口煤矿机械有限责任公司 Steel for chain wheel and preparation method and application thereof

Similar Documents

Publication Publication Date Title
CN104131128B (en) A kind of method preparing ferro-titanium based on aluminothermy self-propagating-winding-up drastic reduction
CN101397628B (en) Continuous casting bearing steel round steel and method for producing the same
CN102021488B (en) Steel for nuclear-island seamless steel tube and production method thereof
CN101928847B (en) Process for smelting magnesium alloy
CN102069174A (en) Method for producing centrifugal electroslag smelting and casting double-base composite roller
CN107350445B (en) The production method of carburizing bearing steel G20Cr2Ni4 continuous cast round billets
CN102888492B (en) Si-Ca-Al-Mg-RE (rare earth) composite deoxidizer and preparation method thereof
CN108085546A (en) A kind of 2024 aluminium alloy smelting casting methods
CN101020230A (en) Steel bond hard alloy multistream continuous casting process and apparatus
CN102373360A (en) Fe-La intermediate alloy for rare earth addition into steel and manufacture method thereof
CN106755724B (en) A kind of smelting technology being suitable for 3 tons of intermediate frequency furnace production nodulizers
CN101508018A (en) Method for preventing heavy steel ingot from liquating by different pouring ladles
CN102029378B (en) Method for manufacturing super-thick super-huge single steel ingot
CN102392180A (en) Ferroaluminium and preparation method thereof
CN103008617B (en) Method for preparing high-speed steel composite roll for hot rolling
CN102839292A (en) Aluminum iron alloy with ultra-low carbon, ultra-low titanium and high silicon contents for deoxidizing aluminum silicon killed steel and manufacturing method of aluminum iron alloy
CN102304634B (en) Refining agent for smelting tin bronze alloy
CN103131935A (en) REFeSiCa alloy used to be added in steel, and manufacturing method thereof
CN103589918B (en) A kind of melting technology of end cap alloy
CN102921928B (en) A kind of method of titanium sponge production titanium or titanium alloy casting
CN106493295B (en) A kind of casting technique of large scale magnesium alloy flat structure part
CN1292860C (en) Technology of slag fused casting train shaft
KR101665467B1 (en) Fabrication Method of Ferro Alloy by Thermit Reaction of Oxidation-Reduction
CN101086029A (en) High Ca, silicon-free aluminum calcium iron alloy for deoxidising of molten steel and its preparation method
CN102794437A (en) Electroslag remelting method for producing large steel ingot by multiple small furnaces

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20110525