CN105063500A - Cold roller for rolling stainless steel plates, and preparation method of cold roller - Google Patents
Cold roller for rolling stainless steel plates, and preparation method of cold roller Download PDFInfo
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- CN105063500A CN105063500A CN201510441413.8A CN201510441413A CN105063500A CN 105063500 A CN105063500 A CN 105063500A CN 201510441413 A CN201510441413 A CN 201510441413A CN 105063500 A CN105063500 A CN 105063500A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a cold roller for rolling stainless steel plates, and a preparation method of the cold roller. The cold roller is prepared from the following components in percentage by weight: 0.50-0.90% of C, 0.20-0.80% of Si, 0.40-1.0% of Mn, 2.8-4.0% of Cr, 0.20-0.60% of Ni, 0.20-0.60% of Mo, S which is smaller than or equal to 0.015%, P which is smaller than or equal to 0.015%, and the balance of Fe and inevitable impurities. The preparation method comprises the following steps: manufacturing roller blank; performing rough processing and quenched-tempered heat treatment on the manufactured roller blank; performing semi fine processing on the heated roller blank; finely grinding a roller body and performing ultrasonic flaw examination; performing high-temperature induction quenching on the ground roller body under 920-950 DEG C; immediately performing cryogenic treatment on the quenched roller under minus 80-minus 100 DEG C; and performing tempering heat preservation on the cooled roller under 160-180 DEG C. According to the cold roller disclosed by the invention, the surface hardness is 85-90 HSD, and the cold roller has a good crack-expansion resisting performance and high basal-body strength.
Description
Technical field
The present invention relates to a kind of cold roll and preparation method thereof, is a kind ofly be applicable to cold roll of rolling stainless steel plate and preparation method thereof concretely.
Background technology
Stainless steel is a special kinds of iron and steel, because it has attractive in appearance, excellent antirust, corrosion resisting property concurrently, along with progress and the development of society, its range of application is also more and more wider, usage quantity is also increasing, be widely used in the industries such as building materials, automobile, chemical industry, and output is also improving year by year.Under the demand that market is huge drives, domestic stainless output is also always with speed development faster.Stainless steel is a kind of high quality steel, during rolling, resistance to deformation is larger, belong to a kind of difficult deformable metal material, cold-rolling stainless steel is as a kind of high tensile steel section product, and the requirement of Surface Quality is very strict, and the inner quality performance requriements of breaker roll is also very high, the domestic and international material for making cold roll has Cr2, Cr3, Cr5 series at present, the roll of this kind of material easily produces infant cracking in use, even peels off, and use cost improves greatly.A kind of Novel cold rolling roll material possessing the high strength of anti-crack growth ability is just needed for this kind of difficult deformable metal plate of rolling stainless steel.
Summary of the invention
The object of the invention is the defect existed for prior art, a kind of cold roll and the preparation method that are applicable to the difficult deformable metal plate rollings such as stainless steel are provided.
The object of the invention is to solve by the following technical programs:
A cold roll for rolling stainless steel plate, is characterized in that: the composition of this cold roll and weight percentage thereof are: C is 0.50 ~ 0.90%; Si is 0.20 ~ 0.80%; Mn is 0.40 ~ 1.0%; Cr is 2.8 ~ 4.0%; Ni is 0.20 ~ 0.60%; Mo is 0.20-0.60%; S, P are all≤0.015%; All the other are Fe and inevitable impurity.
The composition of this cold roll and weight percentage thereof are: C is 0.65 ~ 0.80%; Si is 0.40 ~ 0.60%; Mn is 0.60 ~ 0.80%; Cr is 3.2 ~ 3.5%; Ni is 0.40 ~ 0.60%; Mo is 0.20-0.40%; S, P are all≤0.015%; All the other are Fe and inevitable impurity.
The preparation method of this cold roll carries out in the steps below: the tempering isothermal holding → precision work → finished product roller of 160-180 DEG C is carried out in roller stock making → roughing and Tempering and Quenching → semi-finishing, the fine grinding body of roll carrying out carry out-80 ~-100 DEG C immediately sub-zero treatment → by the roll after deepfreeze after the high temperature induction quenching → quenching of 920 ~ 950 DEG C is carried out in UT (Ultrasonic Testing) inspection → to the body of roll.
The cold roll surface hardness of obtained rolling stainless steel plate is 85-90HSD.
The present invention has the following advantages compared to existing technology:
The present invention by increase Mn, Ni constituent content with improves material matrix strength, increase Cr, Mo content with the non-deformability of the hardening capacity and strongthener that improve material, reduction C content to reduce heat treatment stress, obtained cold roll surface hardness is 85-90HSD and possesses good cracking resistance line ductility and higher matrix strength, makes material obtain the choose reasonable of optimum performance in preparation method by the comprehensive action of induction quenching, deepfreeze, tempering process.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
A cold roll for rolling stainless steel plate, is characterized in that: the composition of this cold roll and weight percentage thereof are: C is 0.50 ~ 0.90%; Si is 0.20 ~ 0.80%; Mn is 0.40 ~ 1.0%; Cr is 2.8 ~ 4.0%; Ni is 0.20 ~ 0.60%; Mo is 0.20-0.60%; S, P are all≤0.015%; All the other are Fe and inevitable impurity.Optimize further chemical composition, then the composition and the weight percentage thereof that obtain this cold roll are: C is 0.65 ~ 0.80%; Si is 0.40 ~ 0.60%; Mn is 0.60 ~ 0.80%; Cr is 3.2 ~ 3.5%; Ni is 0.40 ~ 0.60%; Mo is 0.20-0.40%; S, P are all≤0.015%; All the other are Fe and inevitable impurity.The preparation method of this cold roll carries out in the steps below: the tempering isothermal holding → precision work → finished product roller of 160-180 DEG C is carried out in roller stock making → roughing and Tempering and Quenching → semi-finishing, the fine grinding body of roll carrying out carry out-80 ~-100 DEG C immediately sub-zero treatment → by the roll after deepfreeze after the high temperature induction quenching → quenching of 920 ~ 950 DEG C is carried out in UT (Ultrasonic Testing) inspection → to the body of roll.The soaking time adopted in above-mentioned a series of heat treated process is same as the prior art, and the cold roll surface hardness of obtained rolling stainless steel plate is 85-90HSD.
Be further described below by the cold roll of specific embodiment to rolling stainless steel plate of the present invention.
Embodiment one
The composition of this cold roll and weight percentage thereof are: C:0.67%; Si:0.38%; Mn:0.63%; Cr:3.3%; Ni:0.46%; Mo:0.23%; S, P≤0.015; All the other are Fe and inevitable impurity element.Preparation method's step of the cold roll of this rolling stainless steel plate comprises: (1) carries out roller stock making by above-mentioned chemical composition scheme, and roller stock is up-to-standard; (2) roughing and Tempering and Quenching are carried out to roller stock; (3) carry out semi-finishing to roller stock by drawing, the fine grinding body of roll also carries out UT (Ultrasonic Testing) inspection; (4) carry out high temperature induction quenching to the body of roll, quenching temperature is 940 DEG C; (5) roll quenched is carried out immediately to the sub-zero treatment of-80 DEG C; (6) roll after deepfreeze is carried out temper, tempering holding temperature is 170 DEG C; (7) finally carry out precision work and obtain finished product roller, the roller surface hardness of this finished product roller is 87-88HSD.The soaking time adopted in above-mentioned a series of heat treated process is same as the prior art.
Embodiment two
The composition of this cold roll and weight percentage thereof are: C:0.72%; Si:0.55%; Mn:0.67%; Cr:3.32%; Ni:0.53%; Mo:0.31%; S:0.009%; P:0.013%; All the other are Fe and inevitable impurity element.Preparation method's step of the cold roll of this rolling stainless steel plate comprises: (1) carries out roller stock making by above-mentioned chemical composition scheme, and roller stock is up-to-standard; (2) roughing and Tempering and Quenching are carried out to roller stock; (3) carry out semi-finishing to roller stock by drawing, the fine grinding body of roll also carries out UT (Ultrasonic Testing) inspection; (4) carry out high temperature induction quenching to the body of roll, quenching temperature is 945 DEG C; (5) roll quenched is carried out immediately to the sub-zero treatment of-90 DEG C; (6) roll after deepfreeze is carried out temper, tempering holding temperature is 175 DEG C; (7) finally carry out precision work and obtain finished product roller, the roller surface hardness of this finished product roller is 86-87HSD.The soaking time adopted in above-mentioned a series of heat treated process is same as the prior art.
Embodiment three
The composition of this cold roll and weight percentage thereof are: C:0.68%; Si:0.43%; Mn:0.72%; Cr:3.45%; Ni:0.45%; Mo:0.26%; S:0.006%; P:0.015%; All the other are Fe and inevitable impurity element.Preparation method's step of the cold roll of this rolling stainless steel plate comprises: (1) carries out roller stock making by above-mentioned chemical composition scheme, and roller stock is up-to-standard; (2) roughing and Tempering and Quenching are carried out to roller stock; (3) carry out semi-finishing to roller stock by drawing, the fine grinding body of roll also carries out UT (Ultrasonic Testing) inspection; (4) carry out high temperature induction quenching to the body of roll, quenching temperature is 930 DEG C; (5) roll quenched is carried out immediately to the sub-zero treatment of-85 DEG C; (6) roll after deepfreeze is carried out temper, tempering holding temperature is 165 DEG C; (7) finally carry out precision work and obtain finished product roller, the roller surface hardness of this finished product roller is 88-90HSD.The soaking time adopted in above-mentioned a series of heat treated process is same as the prior art.
Embodiment four
The composition of this cold roll and weight percentage thereof are: C:0.75%; Si:0.59%; Mn:0.76%; Cr:3.27%; Ni:0.42%; Mo:0.28%; S:0.008%; P:0.012%; All the other are Fe and inevitable impurity element.Preparation method's step of the cold roll of this rolling stainless steel plate comprises: (1) carries out roller stock making by above-mentioned chemical composition scheme, and roller stock is up-to-standard; (2) roughing and Tempering and Quenching are carried out to roller stock; (3) carry out semi-finishing to roller stock by drawing, the fine grinding body of roll also carries out UT (Ultrasonic Testing) inspection; (4) carry out high temperature induction quenching to the body of roll, quenching temperature is 920 DEG C; (5) roll quenched is carried out immediately to the sub-zero treatment of-80 DEG C; (6) roll after deepfreeze is carried out temper, tempering holding temperature is 160 DEG C; (7) finally carry out precision work and obtain finished product roller, the roller surface hardness of this finished product roller is 89-90HSD.The soaking time adopted in above-mentioned a series of heat treated process is same as the prior art.
Embodiment five
The composition of this cold roll and weight percentage thereof are: C:0.71%; Si:0.53%; Mn:0.66%; Cr:3.38%; Ni:0.51%; Mo:0.35%; S:0.007%; P:0.013%; All the other are Fe and inevitable impurity element.Preparation method's step of the cold roll of this rolling stainless steel plate comprises: (1) carries out roller stock making by above-mentioned chemical composition scheme, and roller stock is up-to-standard; (2) roughing and Tempering and Quenching are carried out to roller stock; (3) carry out semi-finishing to roller stock by drawing, the fine grinding body of roll also carries out UT (Ultrasonic Testing) inspection; (4) carry out high temperature induction quenching to the body of roll, quenching temperature is 950 DEG C; (5) roll quenched is carried out immediately to the sub-zero treatment of-100 DEG C; (6) roll after deepfreeze is carried out temper, tempering holding temperature is 180 DEG C; (7) finally carry out precision work and obtain finished product roller, the roller surface hardness of this finished product roller is 85-87HSD.The soaking time adopted in above-mentioned a series of heat treated process is same as the prior art.
Embodiment six
The composition of this cold roll and weight percentage thereof are: C:0.78%; Si:0.48%; Mn:0.71%; Cr:3.41%; Ni:0.47%; Mo:0.33%; S:0.005%; P:0.014%; All the other are Fe and inevitable impurity element.Preparation method's step of the cold roll of this rolling stainless steel plate comprises: (1) carries out roller stock making by above-mentioned chemical composition scheme, and roller stock is up-to-standard; (2) roughing and Tempering and Quenching are carried out to roller stock; (3) carry out semi-finishing to roller stock by drawing, the fine grinding body of roll also carries out UT (Ultrasonic Testing) inspection; (4) carry out high temperature induction quenching to the body of roll, quenching temperature is 940 DEG C; (5) roll quenched is carried out immediately to the sub-zero treatment of-90 DEG C; (6) roll after deepfreeze is carried out temper, tempering holding temperature is 170 DEG C; (7) finally carry out precision work and obtain finished product roller, the roller surface hardness of this finished product roller is 87-88HSD.The soaking time adopted in above-mentioned a series of heat treated process is same as the prior art.
The chemical composition weight percentage sum of the cold roll in the present invention is 100%.
The present invention by increase Mn, Ni constituent content with improves material matrix strength, increase Cr, Mo content with the non-deformability of the hardening capacity and strongthener that improve material, reduction C content to reduce heat treatment stress, obtained cold roll surface hardness is 85-90HSD and possesses good cracking resistance line ductility and higher matrix strength, makes material obtain the choose reasonable of optimum performance in preparation method by the comprehensive action of induction quenching, deepfreeze, tempering process.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, every technological thought proposed according to the present invention, and any change that technical scheme basis is done, all falls within scope; The technology that the present invention does not relate to all is realized by prior art.
Claims (4)
1. a cold roll for rolling stainless steel plate, is characterized in that: the composition of this cold roll and weight percentage thereof are: C is 0.50 ~ 0.90%; Si is 0.20 ~ 0.80%; Mn is 0.40 ~ 1.0%; Cr is 2.8 ~ 4.0%; Ni is 0.20 ~ 0.60%; Mo is 0.20-0.60%; S, P are all≤0.015%; All the other are Fe and inevitable impurity.
2. the cold roll of rolling stainless steel plate according to claim 1, is characterized in that: the composition of this cold roll and weight percentage thereof are: C is 0.65 ~ 0.80%; Si is 0.40 ~ 0.60%; Mn is 0.60 ~ 0.80%; Cr is 3.2 ~ 3.5%; Ni is 0.40 ~ 0.60%; Mo is 0.20-0.40%; S, P are all≤0.015%; All the other are Fe and inevitable impurity.
3. according to the preparation method of the cold roll of the arbitrary described rolling stainless steel plate of claim 1-2, it is characterized in that: the preparation method of this cold roll carries out in the steps below: roller stock makings → roughing and Tempering and Quenching → semi-finishing, refine the body of roll and the tempering isothermal holding → precision work → finished product roller of 160-180 DEG C is carried out in the sub-zero treatment → by the roll after deepfreeze carrying out carrying out immediately after the high temperature induction quenching → quenching of 920 ~ 950 DEG C is carried out in UT (Ultrasonic Testing) inspection → to the body of roll-80 ~-100 DEG C.
4. the preparation method of the cold roll of rolling stainless steel plate according to claim 3, is characterized in that: the cold roll surface hardness of obtained rolling stainless steel plate is 85-90HSD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510441413.8A CN105063500A (en) | 2015-07-25 | 2015-07-25 | Cold roller for rolling stainless steel plates, and preparation method of cold roller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510441413.8A CN105063500A (en) | 2015-07-25 | 2015-07-25 | Cold roller for rolling stainless steel plates, and preparation method of cold roller |
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| CN105063500A true CN105063500A (en) | 2015-11-18 |
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| CN201510441413.8A Pending CN105063500A (en) | 2015-07-25 | 2015-07-25 | Cold roller for rolling stainless steel plates, and preparation method of cold roller |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316582A (en) * | 2015-10-29 | 2016-02-10 | 中钢集团邢台机械轧辊有限公司 | Cold roll with thick quench-hardened layer and manufacturing method thereof |
| CN105568133A (en) * | 2016-01-05 | 2016-05-11 | 山西太钢不锈钢股份有限公司 | Cold-rolled working roller material and heat treatment method thereof |
| CN106567002A (en) * | 2016-11-15 | 2017-04-19 | 上海大学 | Medical osteotome for mandible plastic surgery and preparation method thereof |
| CN109554612A (en) * | 2018-12-10 | 2019-04-02 | 宜兴市永昌轧辊有限公司 | A kind of novel cold rolling working roll and preparation method thereof |
| CN109762968A (en) * | 2019-03-26 | 2019-05-17 | 江苏润孚机械轧辊制造有限公司 | A kind of method of common forged steel roller stock production silicon steel cold roll |
| CN111041347A (en) * | 2019-11-20 | 2020-04-21 | 长沙金铎机械有限公司 | Continuous rolling roller and preparation method thereof |
-
2015
- 2015-07-25 CN CN201510441413.8A patent/CN105063500A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 苗金平: "锻钢冷轧辊耐磨性和抗热冲击性试验研究", 《河北冶金》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316582A (en) * | 2015-10-29 | 2016-02-10 | 中钢集团邢台机械轧辊有限公司 | Cold roll with thick quench-hardened layer and manufacturing method thereof |
| CN105568133A (en) * | 2016-01-05 | 2016-05-11 | 山西太钢不锈钢股份有限公司 | Cold-rolled working roller material and heat treatment method thereof |
| CN106567002A (en) * | 2016-11-15 | 2017-04-19 | 上海大学 | Medical osteotome for mandible plastic surgery and preparation method thereof |
| CN109554612A (en) * | 2018-12-10 | 2019-04-02 | 宜兴市永昌轧辊有限公司 | A kind of novel cold rolling working roll and preparation method thereof |
| CN109762968A (en) * | 2019-03-26 | 2019-05-17 | 江苏润孚机械轧辊制造有限公司 | A kind of method of common forged steel roller stock production silicon steel cold roll |
| CN111041347A (en) * | 2019-11-20 | 2020-04-21 | 长沙金铎机械有限公司 | Continuous rolling roller and preparation method thereof |
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Application publication date: 20151118 |