CN103302250A - Edging roll mould and process for producing edging roll by adopting edging roll mould - Google Patents
Edging roll mould and process for producing edging roll by adopting edging roll mould Download PDFInfo
- Publication number
- CN103302250A CN103302250A CN2013102580859A CN201310258085A CN103302250A CN 103302250 A CN103302250 A CN 103302250A CN 2013102580859 A CN2013102580859 A CN 2013102580859A CN 201310258085 A CN201310258085 A CN 201310258085A CN 103302250 A CN103302250 A CN 103302250A
- Authority
- CN
- China
- Prior art keywords
- mould
- roll
- edger roll
- edging roll
- sandbox
- 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.)
- Granted
Links
Images
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses an edging roll mould and a process for producing an edging roll by adopting the edging roll mould. The edging roll mould comprises a bottom box, a cold type, an upper roll neck sand box and a casting head sand box which are sequentially arranged from bottom to top, wherein the upper end of the bottom box is opened, and the lower end of the bottom box is sealed; the cold type, the upper roll neck sand box and the upper and lower ends of casting head sand box are opened, and an inner cavity of the bottom box is corresponding to a tenuous shaft neck end of the edging roll. According to the edging roll mould provided by the invention, the tenuous shaft neck part of the edging roll can be designed on the lower part of the mould, 10% of molten steel is saved, the tenuous shaft neck part can obtain fine grained structure, a loosen and coarseness phenomenon is eliminated, the yield is improved, and the manufacturing cost is saved; meanwhile, the scrap rate of the tenuous shaft neck part is reduced, the efficiency is improved, and the energy saving and environmental protection are realized.
Description
Technical field
The present invention relates to a kind of edger roll mould and adopt this mould to produce the technology of edger roll.
Background technology
The edger roll that uses with the wide control height of H shaped steel control leg frame that the machine maintenance of 1250mm-2300mm tropical rolling just is being shaped and is using with control width frame; because roll forming is special; barrel diameter is big; roll neck is elongated, presses existing mold, and the design of roll neck elongated portion is produced on mould top; because technological design coefficient big (70-80% of roller diameter φ); the high-temperature molten steel contracting is big, and regular meeting causes the roll neck elongated portion to organize coarse and loose causing to scrap, and loses very big.
Edger roll need have high intensity, wearability and heat crack resistance and just can increase the service life, and reaches energy-saving and cost-reducing effect.
Because of the front and rear of edger roll use at the roughing unit, under the high temperature of degree more than 1000, operate for a long time, the edger roll material that producer uses is by forged steel-SGV-AD140I/160I half steel, the demand of producing has not been satisfied in the variation of invar material quality, the edger roll of above-mentioned material, has use defective in various degree simultaneously: the edger roll of forged steel material is because carbon (C) constituent content is low, wearability, heat crack resistance are poor, easily be full of cracks, amount of rolling is low, the cost height; The edger roll of middle nickel chromium triangle molybdenum spheroidal graphite (SGV) material, wearability strengthens, intensity difference (≧ 320MPa), roll breakage neck accident when easily causing operation; AD140I/160I material edger roll, the amount of rolling 30000-40000 ton of being everlasting is paced up and down.For this reason, steel rolling producer urgent need can improve the edger roll of the New Type Material of longer service life.
Summary of the invention
First technical problem to be solved by this invention provides the high edger roll mould of a kind of yield rate, saves production cost.
In order to solve the problems of the technologies described above, technical scheme provided by the present invention is: the edger roll mould comprises the under casing, cold mould, last roll neck sandbox and the rising head sandbox that set gradually from bottom to up; Uncovered, the lower end closed in the upper end of described under casing; The two ends up and down of described cold mould, last roll neck sandbox and rising head sandbox are uncovered; The inner chamber of described under casing is corresponding with the roll neck elongated end of edger roll.
Second technical problem to be solved by this invention provides a kind of technology of producing edger roll, and the edger roll that makes has high intensity, wearability and heat crack resistance, long service life.
In order to solve the problems of the technologies described above, technical scheme provided by the present invention is: produce the technology of edger roll, adopt the edger roll mould in the aforementioned techniques scheme, may further comprise the steps:
1. add the yttrium-base heavy rare earth alterant during liquid steel refining, eliminate oxygen, hydrogen, sulphur, phosphorus harmful element in the molten steel, obtain carbon, manganese, chromium, nickel content and respectively be 1.45% ~ 1.55% high-quality molten steel;
2. heat 40-60 ℃ on the basis of liquidus temperature, after calm 8 minutes, in the edger roll mould, pour into a mould the edger roll blank again;
3. successively through diffusion, spheroidizing, normalizing Acm+60 ~ 80 ℃ and 450 ~ 580 ℃ of PROCESS FOR TREATMENT of tempering;
4. obtain qualified finished product edger roll after processing smear metal.
The amount that described step adds the yttrium-base heavy rare earth alterant in 1. during liquid steel refining is: molten steel per ton adds 1-3 kilogram yttrium-base heavy rare earth alterant.
After having adopted technique scheme, the present invention has following beneficial effect: the inner chamber of the under casing of (1) edger roll mould of the present invention is corresponding with the roll neck elongated end of edger roll, thereby the elongated roller neck portion of edger roll is designed in the mould bottom, can save 10% molten steel, obtain fine grain structure at the elongated roller neck portion, eliminate loose and coarse phenomenon, improved yield rate, saved production cost; Simultaneously, reduce the scrap rate of elongated roller neck portion, both improved efficient, again energy-conserving and environment-protective.
(2) technology of production edger roll of the present invention adds the yttrium-base heavy rare earth alterant when liquid steel refining, eliminate oxygen, hydrogen, sulphur, phosphorus harmful element in the molten steel, obtain carbon, manganese, chromium, nickel content and respectively be 1.45% ~ 1.55% high-quality molten steel, can make that the quenching degree of edger roll and red hardness are better.
(3) technology of production edger roll of the present invention successively through diffusion, spheroidizing, normalizing Acm+60 ~ 80 ℃ and 450 ~ 580 ℃ of PROCESS FOR TREATMENT of tempering, can make the body of roll of edger roll and roll neck have uniform hardness to the edger roll blank.
(4) edger roll that makes of the technology of production edger roll of the present invention, detecting matrix through metallographic is bainite+tempered sorbite+pearlite, roll neck Kang La Qiang Du ≧ 650MPa reaches the 2-3 of common roll service life doubly, once can produce 12.5 ten thousand tons.
Description of drawings
Content of the present invention is easier to be expressly understood in order to make, and according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein below
Fig. 1 is the structural representation of edger roll mould of the present invention.
Label in the accompanying drawing is:
Under casing 1, cold mould 2, last roll neck sandbox 3, rising head sandbox 4, edger roll blank 5, finished product edger roll 6.
The specific embodiment
(embodiment 1)
See Fig. 1, the edger roll mould of present embodiment comprises the under casing 1, cold mould 2, last roll neck sandbox 3 and the rising head sandbox 4 that set gradually from bottom to up.
Uncovered, the lower end closed in the upper end of under casing 1.The two ends up and down of cold mould 2, last roll neck sandbox 3 and rising head sandbox 4 are uncovered.The inner chamber of under casing 1 is corresponding with the roll neck elongated end of edger roll.
Adopt the technology of the edger roll mould production edger roll of present embodiment, may further comprise the steps:
1. molten steel per ton adds 1-3 kilogram yttrium-base heavy rare earth alterant during liquid steel refining, eliminate oxygen, hydrogen, sulphur, phosphorus harmful element in the molten steel, obtain carbon, manganese, chromium, nickel content and respectively be 1.45% ~ 1.55% high-quality molten steel, make that the quenching degree of edger roll and red hardness are better.
2. heat 40-60 ℃ on the basis of liquidus temperature, after calm 8 minutes, in the edger roll mould, pour into a mould edger roll blank 5 again.
3. successively through diffusion, spheroidizing, normalizing Acm+60 ~ 80 ℃ and 450 ~ 580 ℃ of PROCESS FOR TREATMENT of tempering, make the body of roll of edger roll and roll neck have uniform hardness.
4. obtain qualified finished product edger roll 6 after processing smear metal.
Through the edger roll that above-mentioned technology makes, detecting matrix through metallographic is bainite+tempered sorbite+pearlite.Roll neck Kang La Qiang Du ≧ 650MPa reaches the 2-3 of common roll service life doubly, once can produce 12.5 ten thousand tons.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the edger roll mould is characterized in that: comprise the under casing (1), cold mould (2), last roll neck sandbox (3) and the rising head sandbox (4) that set gradually from bottom to up; Uncovered, the lower end closed in upper end of described under casing (1); The two ends up and down of described cold mould (2), last roll neck sandbox (3) and rising head sandbox (4) are uncovered; The inner chamber of described under casing (1) is corresponding with the roll neck elongated end of edger roll.
2. produce the technology of edger roll, it is characterized in that: adopt the described edger roll mould of claim 1, may further comprise the steps:
1. add the yttrium-base heavy rare earth alterant during liquid steel refining, eliminate oxygen, hydrogen, sulphur, phosphorus harmful element in the molten steel, obtain carbon, manganese, chromium, nickel content and respectively be 1.45% ~ 1.55% high-quality molten steel;
2. heat 40-60 ℃ on the basis of liquidus temperature, after calm 8 minutes, in the edger roll mould, pour into a mould edger roll blank (5) again;
3. successively through diffusion, spheroidizing, normalizing Acm+60 ~ 80 ℃ and 450 ~ 580 ℃ of PROCESS FOR TREATMENT of tempering;
4. obtain qualified finished product edger roll (6) after processing smear metal.
3. the technology of production edger roll according to claim 2 is characterized in that: the amount that described step adds the yttrium-base heavy rare earth alterant in 1. during liquid steel refining is: molten steel per ton adds 1-3 kilogram yttrium-base heavy rare earth alterant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258085.9A CN103302250B (en) | 2013-06-25 | 2013-06-25 | Edging roll mould and process for producing edging roll by adopting edging roll mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310258085.9A CN103302250B (en) | 2013-06-25 | 2013-06-25 | Edging roll mould and process for producing edging roll by adopting edging roll mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103302250A true CN103302250A (en) | 2013-09-18 |
| CN103302250B CN103302250B (en) | 2015-07-01 |
Family
ID=49128218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310258085.9A Active CN103302250B (en) | 2013-06-25 | 2013-06-25 | Edging roll mould and process for producing edging roll by adopting edging roll mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103302250B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118247A (en) * | 2018-01-04 | 2018-06-05 | 湖州中杭轧辊有限公司 | A kind of alloy half steel roll for being exclusively used in rolling bearings steel ball and its production technology |
| CN108144965A (en) * | 2018-01-04 | 2018-06-12 | 湖州中杭轧辊有限公司 | A kind of roll and production technology suitable for cross-wedge-rolling shaft part |
| CN111922293A (en) * | 2020-10-12 | 2020-11-13 | 常州凯达重工科技有限公司 | Casting mold for roller with mud core seat and mud core falling method for roller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1042874A1 (en) * | 1982-02-26 | 1983-09-23 | Днепропетровский Ордена Трудового Красного Знамени Металлургический Институт Им.Л.И.Брежнева | Mould for castning rolls |
| JPS63224839A (en) * | 1987-03-16 | 1988-09-19 | Kawasaki Steel Corp | Mold for casting steel kind roll for rolling mill |
| KR100894211B1 (en) * | 2007-11-08 | 2009-04-22 | 현대제철 주식회사 | Hot rolling roll mold |
| CN201543778U (en) * | 2009-11-24 | 2010-08-11 | 铜陵市大明玛钢有限责任公司 | Anti-cracking roller casting die |
| CN202079256U (en) * | 2011-05-23 | 2011-12-21 | 张年生 | Injection-type pouring system on cast steel rolling roll |
| CN102554129A (en) * | 2011-12-26 | 2012-07-11 | 常州凯达重工科技有限公司 | Roll casting process and pouring device adopted by same |
| CN203380333U (en) * | 2013-06-25 | 2014-01-08 | 常州凯达重工科技有限公司 | Edging roller die |
-
2013
- 2013-06-25 CN CN201310258085.9A patent/CN103302250B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1042874A1 (en) * | 1982-02-26 | 1983-09-23 | Днепропетровский Ордена Трудового Красного Знамени Металлургический Институт Им.Л.И.Брежнева | Mould for castning rolls |
| JPS63224839A (en) * | 1987-03-16 | 1988-09-19 | Kawasaki Steel Corp | Mold for casting steel kind roll for rolling mill |
| KR100894211B1 (en) * | 2007-11-08 | 2009-04-22 | 현대제철 주식회사 | Hot rolling roll mold |
| CN201543778U (en) * | 2009-11-24 | 2010-08-11 | 铜陵市大明玛钢有限责任公司 | Anti-cracking roller casting die |
| CN202079256U (en) * | 2011-05-23 | 2011-12-21 | 张年生 | Injection-type pouring system on cast steel rolling roll |
| CN102554129A (en) * | 2011-12-26 | 2012-07-11 | 常州凯达重工科技有限公司 | Roll casting process and pouring device adopted by same |
| CN203380333U (en) * | 2013-06-25 | 2014-01-08 | 常州凯达重工科技有限公司 | Edging roller die |
Non-Patent Citations (2)
| Title |
|---|
| 王贵明等: "铸造半钢轧辊的研制", 《钢铁》 * |
| 胡学军等: "钇基重稀土复合球化剂试验研究", 《铸造》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118247A (en) * | 2018-01-04 | 2018-06-05 | 湖州中杭轧辊有限公司 | A kind of alloy half steel roll for being exclusively used in rolling bearings steel ball and its production technology |
| CN108144965A (en) * | 2018-01-04 | 2018-06-12 | 湖州中杭轧辊有限公司 | A kind of roll and production technology suitable for cross-wedge-rolling shaft part |
| CN111922293A (en) * | 2020-10-12 | 2020-11-13 | 常州凯达重工科技有限公司 | Casting mold for roller with mud core seat and mud core falling method for roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103302250B (en) | 2015-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103014534B (en) | Cast hot work die steel and processing method thereof | |
| CN102837165B (en) | Manufacturing method for final-stage driving gear of high-power coal mining machine | |
| CN102534391A (en) | Hot-work die steel for extrusion wheel and manufacturing method thereof | |
| CN103014495B (en) | High-tenacity high-wear-resistance cold-work die steel and processing method thereof | |
| CN103014511B (en) | High-toughness cold-work mould steel and complete processing thereof | |
| CN102418042A (en) | Novel process for manufacturing round steel by forging high-carbon high-chromium cold-working die steel with diameter phi of 300-700 mm | |
| CN104148618B (en) | A kind of TiC base cemented carbide grid composite strengthening grinding roller | |
| CN104148651A (en) | Method for manufacturing TiC hard alloy composite grinding roller | |
| CN103302250B (en) | Edging roll mould and process for producing edging roll by adopting edging roll mould | |
| CN105112802A (en) | Method for preparing wear-resistant plastic moulds | |
| CN102899589A (en) | High-strength non-tempered bainite steel and preparation method thereof | |
| CN113046641B (en) | Low-vanadium nitrogen-containing hot work die steel and preparation method thereof | |
| CN106906407B (en) | A kind of preparation method of low-alloy vanadium titanium vermicular cast iron mould for glass bottle | |
| CN103056373A (en) | Method for manufacturing starting ratchet wheel of motorcycle | |
| CN203380333U (en) | Edging roller die | |
| CN103352174A (en) | Roll ring for rolling and straightening track beam, and manufacturing method for same | |
| CN102181799B (en) | Press roll for pressing secondary battery electrode and producing process thereof | |
| CN102873307A (en) | Method for remelting roller surface of crush roller and casting abrasion-resistant alloy layer | |
| CN202861347U (en) | Crystallization wheel casting device | |
| CN102728821B (en) | Process method for electroslag smelting casting ship lift rack | |
| CN105369139A (en) | Break-down roller made of special alloy semi-steel material and manufacturing method of break-down roller | |
| CN111519089B (en) | Improved infinite chilled alloy cast iron type steel roll casting method | |
| CN106282747A (en) | A kind of omnipotent horizontal rich chromium cast iron collars of cast-in-block and preparation method | |
| CN201889849U (en) | Ultra-wear-resisting core bar of brick-making machine | |
| CN105220056A (en) | A kind of manufacture method of mould for plastics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.66, Dong'an Xingwang Road, Huangli Town, Wujin District, Changzhou City, Jiangsu Province 213100 Patentee after: Jiangsu Kaida Heavy Industry Co.,Ltd. Address before: No. 66, Xingwang Road, Dong'an, Huangli Town, Changzhou City, Jiangsu Province 213000 Patentee before: CHANGZHOU KAIDA HEAVY INDUSTRY TECHNOLOGY CO.,LTD. |
|
| CP03 | Change of name, title or address |