CN1094756A - Roller sleeve steel for aluminium casting-rolling mill - Google Patents

Roller sleeve steel for aluminium casting-rolling mill Download PDF

Info

Publication number
CN1094756A
CN1094756A CN 93112425 CN93112425A CN1094756A CN 1094756 A CN1094756 A CN 1094756A CN 93112425 CN93112425 CN 93112425 CN 93112425 A CN93112425 A CN 93112425A CN 1094756 A CN1094756 A CN 1094756A
Authority
CN
China
Prior art keywords
steel
roller sleeve
rolling mill
sleeve steel
roller
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
CN 93112425
Other languages
Chinese (zh)
Inventor
李春治
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.)
SHANGHAI HEAVY-DUTY MACHINERY PLANT
Shanghai Heavy Machinery Plant Co Ltd
Original Assignee
SHANGHAI HEAVY-DUTY MACHINERY PLANT
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 SHANGHAI HEAVY-DUTY MACHINERY PLANT filed Critical SHANGHAI HEAVY-DUTY MACHINERY PLANT
Priority to CN 93112425 priority Critical patent/CN1094756A/en
Publication of CN1094756A publication Critical patent/CN1094756A/en
Pending legal-status Critical Current

Links

Abstract

The present invention relates to the roll sleeve of cast-rolling aluminum volume.A kind of material of roller sleeve steel and smelting thereof, forging and pressing, process of thermal treatment method are provided, make the life-span of roller shell under reasonable working conditions be no less than 3000~4000 tons of aluminum coiled sheets, and the good heat conductivity of material, can improve the productivity of continuous casting milling train and the inner quality of aluminium plate in coil, cut down finished cost.Roller sleeve steel of the present invention is that Cr-Mo-V is a steel, and its element cooperation is intended to improve anti-temper resistance and hot strength, helps thermal fatigue resistance, and achieve the above object through long 400~600 ℃ of tempering process.

Description

Roller sleeve steel for aluminium casting-rolling mill
The present invention relates to sleeved roll, or metal continuous casting continuous rolling technology: the roll sleeve material of casting aluminium particularly.
The beginning of the eighties, abroad generally to use and aluminium cast continuously and aluminium continuous casting rolling that the hot rolling two-step is integrated is produced aluminium plate in coil, this method not only can boost productivity, energy-conservation, can also improve the quality of aluminium.The a lot of aluminum fabrication plants of China have been introduced this continuous casting, roll in this casting and rolling machine is core and crucial attrition component, generally adopting the middle part is roller core, skin is a roller shell, the composite structure of middle logical cooling fluid, roller shell is worked under the operating mode of the periodic hurried variation of temperature, therefore except that the mechanical property and wear resisting property of general roll, good thermal fatigue resistance also need be arranged, prevent the performance that cracks.The domestic present roller shell that uses is made as the PCrNi3MoV gun-steel, use the longevity to make and be about 1500~2500 tons of aluminum coiled sheets, be 2000~3000 tons Japanese roller shell work-ing life of import, the Mo22 steel roller shell life-span of France Crousor company introduction can reach 4000 tons, home made materials is except work-ing life is not long, because heat conductivility is not good, the rotating speed of casting roller is carried not high, cause aluminium crystal grain comparatively thick, the aluminium plate in coil difficult quality improves, simultaneously because temperature drift during roller shell work causes the clamping force deficiency between roller shell and roller core, between the two slip is serious in the use.The import roller shell then costs an arm and a leg, A level and B level steel roller shell as Japan, though work-ing life is slightly long than home-made, price increases exponentially, the Mo22 steel of France, introducing the life-span can reach 4000 tons, but cost an arm and a leg, cause rolling cost to improve greatly, aluminum fabrication plant generally all is difficult to bear, therefore press for a kind of homemade new steel grade of trial-production, satisfy the matching used needs of growing aluminium casting-rolling mill.According to external reported in literature in the recent period, to disclose flat 4-124255 disclosed for the resistance to thermal cracking that improves roller shell can be speciallyyed permit out hope as Japan, employing forms the molten layer of penetrating of the high nichrome of one deck outside roller shell, and to coat one deck 11~17Cr-Ni be the method that the composite bed of steel is strengthened roll sleeve, but these materials and method all are not suitable for being used for making the roller shell of aluminium casting-rolling mill, and rich chromium cast iron, high alloy iron, Adamite and the rapid steel based material that the routine of introducing on the document is used all can not obtain satisfied result of use.
The purpose of this invention is to provide a kind of material of roller sleeve steel and smelting, forging and pressing, the heat-treatment technology method of roller shell, improve the work-ing life of aluminium casting roller shell.Under reasonable working conditions, the cast-rolling aluminum volume of every pair of roller shell production is no less than 3000~4000 tons, and the heat conductivility of material is better, can improve the productivity and the inner quality of cast-rolling aluminum volume, can cut down finished cost greatly simultaneously.
The objective of the invention is by smelting a kind of Chemical Composition (weight percent) is C 0.10~0.40%, Si 0.10~0.50%, Mn 0.20~0.70%, Cr 1.00~4.00%, Mo 0.20~2.00%, V 0.05~0.50%, and all the other are the GT1200 steel of iron and other impurity, and realize through long 400~600 ℃ of tempering process.The GT1200 steel is that Cr-Mo-V is a steel, and its element cooperation is intended to improve anti-temper resistance and hot strength, helps improving thermal fatigue resistance, also contains Al≤0.01, Cu≤0.25 and Ni≤0.30 in iron and other impurity.Tempering time is 5~30 hours.
Accompanying drawing 1 is to forge the back to amplify 1000 times metallographic structure, and accompanying drawing 2 is the metallographic structure of 1000 times of amplifications after the modifier treatment.
The embodiment of the invention 1.
The melting of steel: in 40 tons of electric arc furnace, make steel fine fodder 50%, SiCa deoxidation, then in 60 tons of ladle refining furnaces, carry out the vacuum argon blowing refining, mouth of a river diameter phi 60mm, 41 tons on molten steel, vacuum tightness 133Pa, 100 liters/minute of argon flow amounts, effectively deaeration time is 12 minutes, obnoxious flavour is mingled with non-metallic inclusion further reduces, and the composition of fine setting steel, make to obtain satisfied terminal point composition, molten steel is cast steel ingot in atmosphere, and the chemical component weight per-cent of finished product is C0.25, Si0.26, Mn0.40, P0.017, S0.006, Cr1.50, Mo0.80, V0.10, [H] 1.9ppm.
The forging and pressing of steel and thermal treatment, the steel ingot Heating temperature is 1250 ℃, is split into round base, jumping-up, perforation, pulling and reaming, totally 4 fire are finished.Forge 870 ℃ of heat back one time.Secondary is cold excessively, 650 ℃ of nodularization tempering.Carry out UT (Ultrasonic Testing) after the thermal treatment.
Final thermal treatment: be modifier treatment, promptly 860 ℃ are quenched and double tempering.
Embodiment 2.
The melting of steel: in 40 tons of electric arc furnace, smelt, adopt the SiCa deoxidation, refining in 60 tons of ladle refining furnaces, mouth of a river diameter phi 60mm, 36 tons on molten steel, vacuum tightness 130~180Pa, effectively deaeration time is 15 minutes, 38~57 liters/minute of argon flow amounts, 11.4 tons * 3 of ingot molds, finished product chemical ingredients C0.27, Si0.31, Mn0.46, P0.020, S0.010, Cr2.00, Mo0.60, V0.14, [H] 2.5ppm.
All the other are identical with embodiment 1.
After modifier treatment, embodiment 1 got longitudinal test piece stretches and shock test, its result is as follows
Test piece number (Test pc No.) б bMPa б SMPa δ5% ψ αkU?J/cm HB
35 35 36 36 1417 1423 1445 1441 1174 1235 1218 1255 13.5 12.3 12.1 12.1 40.2 39.2 40.2 39.2 40 44 36 41 43 40 41 35 410 410 420 391 402 426
Forging the back optics metallurgical is tiny and uniform particulate state perlite, and Fig. 1 is the photo of 1000 times of amplifications, and the metallographic structure after the modifier treatment is a tempered sorbite, and Fig. 2 amplifies 1000 times photo.
Roller sleeve steel of the present invention is after the aluminum fabrication plant practical probation of Shanghai, compare with Japanese KANTOARMCOT244 roller shell, the latter uses and just occurred circumferential crack in 2~3 days, roller shell of the present invention then uses after 6 days and circumferential crack just occurs, can reach 4000 tons its service life, and in using and the slip between the roller core few, and Japanese import have certain slippage, domestic gun-steel slippage will reach more than 90 degree.

Claims (4)

1, a kind of roller sleeve steel for aluminium casting-rolling mill, its chemical component weight per-cent are C0.10~0.40%, Si0.10~0.50%, Mn0.20~0.70%, Cr1.00~4.00%, Mo0.20~2.00%, V0.05~0.50%, and all the other are iron and other impurity.
2,, it is characterized in that in fusion process, adopting the SiCa deoxidation according to the said roller sleeve steel for aluminium casting-rolling mill of claim 1; Molten steel carries out vacuum refinement, and the method for fine setting Chemical Composition.
3, according to the said roller sleeve steel for aluminium casting-rolling mill of claim 1, it is characterized in that also containing in all the other compositions a spot of aluminium, copper and mickel, its weight percent is respectively≤0.01 ,≤0.25 and≤0.30.
4, according to the said roller sleeve steel for aluminium casting-rolling mill of claim 1, it is characterized in that last thermal treatment is modifier treatment, promptly 850 °~950 ° quenchings and 400 °~600 ° high temperings, it is cold to be incubated after 5~30 hours stove.
CN 93112425 1993-05-06 1993-05-06 Roller sleeve steel for aluminium casting-rolling mill Pending CN1094756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 93112425 CN1094756A (en) 1993-05-06 1993-05-06 Roller sleeve steel for aluminium casting-rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 93112425 CN1094756A (en) 1993-05-06 1993-05-06 Roller sleeve steel for aluminium casting-rolling mill

Publications (1)

Publication Number Publication Date
CN1094756A true CN1094756A (en) 1994-11-09

Family

ID=4990039

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 93112425 Pending CN1094756A (en) 1993-05-06 1993-05-06 Roller sleeve steel for aluminium casting-rolling mill

Country Status (1)

Country Link
CN (1) CN1094756A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101956137A (en) * 2010-10-12 2011-01-26 衡阳华菱钢管有限公司 Seamless steel tube for manufacturing hollow core rod and production method
CN101798660B (en) * 2010-01-11 2011-07-20 段岳君 Method for refining, metamorphosing and casting cold roll steel by casting instead of forging
CN102126121A (en) * 2010-12-08 2011-07-20 扬州诚德重工有限公司 New process combining forging and rolling
CN101720263B (en) * 2007-04-19 2012-08-29 本田技研工业株式会社 Method of casting
CN104593691A (en) * 2014-12-26 2015-05-06 中钢集团邢台机械轧辊有限公司 Roller sleeve for large forged alloy steel carrying roller and manufacturing method thereof
CN104928594A (en) * 2015-05-29 2015-09-23 中钢集团邢台机械轧辊有限公司 Aluminum cast roller sleeve with thermal fatigue resistance performance and manufacturing method of roller sleeve
CN105543451A (en) * 2016-01-20 2016-05-04 中钢集团邢台机械轧辊有限公司 Heat treatment method for inlaid backup roll sleeve
CN112845604A (en) * 2020-12-26 2021-05-28 无锡天德金属制品有限公司 Application technology of roll sleeve inner hole type through core water tank in high-strength aluminum alloy rolling process

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101720263B (en) * 2007-04-19 2012-08-29 本田技研工业株式会社 Method of casting
CN101798660B (en) * 2010-01-11 2011-07-20 段岳君 Method for refining, metamorphosing and casting cold roll steel by casting instead of forging
CN101956137A (en) * 2010-10-12 2011-01-26 衡阳华菱钢管有限公司 Seamless steel tube for manufacturing hollow core rod and production method
CN101956137B (en) * 2010-10-12 2013-03-20 衡阳华菱钢管有限公司 Seamless steel tube for manufacturing hollow core rod and production method
CN102126121A (en) * 2010-12-08 2011-07-20 扬州诚德重工有限公司 New process combining forging and rolling
CN102126121B (en) * 2010-12-08 2013-02-27 扬州诚德重工有限公司 New process combining forging and rolling
CN104593691A (en) * 2014-12-26 2015-05-06 中钢集团邢台机械轧辊有限公司 Roller sleeve for large forged alloy steel carrying roller and manufacturing method thereof
CN104593691B (en) * 2014-12-26 2017-03-22 中钢集团邢台机械轧辊有限公司 Roller sleeve for large forged alloy steel carrying roller and manufacturing method thereof
CN104928594A (en) * 2015-05-29 2015-09-23 中钢集团邢台机械轧辊有限公司 Aluminum cast roller sleeve with thermal fatigue resistance performance and manufacturing method of roller sleeve
CN104928594B (en) * 2015-05-29 2017-09-29 中钢集团邢台机械轧辊有限公司 The manufacture method of aluminium Casting Roller set with thermal fatigue resistance
CN105543451A (en) * 2016-01-20 2016-05-04 中钢集团邢台机械轧辊有限公司 Heat treatment method for inlaid backup roll sleeve
CN112845604A (en) * 2020-12-26 2021-05-28 无锡天德金属制品有限公司 Application technology of roll sleeve inner hole type through core water tank in high-strength aluminum alloy rolling process

Similar Documents

Publication Publication Date Title
CN101713052B (en) Non-quenching high-toughness cold-working die steel and production process
CN102268601B (en) 50Cr3MoV steel for back-up roll and heat treatment method for steel
CN101381844A (en) Cold working die steel material and production technology thereof
CN103898415A (en) Improved Cr8 steel roll and preparation method thereof
CN111187934A (en) Production method of GH4080A wire bar
CN110230005B (en) Steel for high-carbon chromium cold roll blank and preparation method thereof
CN109735763A (en) 25X2H4M ф A steel alloy large-size steam turbine shaft forging and preparation method
CN112095049A (en) New replacement material of seamless steel tube for oil cylinder
CN100404720C (en) Alloy for producing cold rolled working roll and method for producing same
CN1094756A (en) Roller sleeve steel for aluminium casting-rolling mill
CN108393355A (en) A kind of manufacturing method of oil/gas well novel seamless steel tube
CN102337472A (en) Heat treatment method for piercing point of seamless pipe
CN112322970A (en) High-chromium steel composite roll collar and manufacturing method thereof
CN1024690C (en) High-chromium alloy cast iron, its hot treatment process and application
CN112662934A (en) Method for reducing bearing steel 100Cr6 carbide banded structure
US4861549A (en) Roller caster shell steel
CN108467917B (en) Manufacturing method of steel bar for 23CrNi3MoA drill bit
JP2006297427A (en) Method for manufacturing forged sleeve roll for rolling wide flange shape
CN110846552A (en) Forging method of martensitic stainless steel main shaft
CN105648349B (en) A kind of preparation method of cut deal hot straightening roll
CN111748750A (en) High-toughness steel for cutter and preparation method thereof
CN113802068B (en) Alloy structural steel containing tungsten and production method thereof
CN112063914B (en) Preparation method of white cast iron for roller and white cast iron
CN102296240B (en) Preparation method of steel pipe and cold-formed steel high-chromium roller
EP0588128A1 (en) Process of hot forging at ultrahigh temperature

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C01 Deemed withdrawal of patent application (patent law 1993)
WD01 Invention patent application deemed withdrawn after publication