CN105463330A - Cold-rolled aluminum working roll with good grinding performance and preparing method thereof - Google Patents
Cold-rolled aluminum working roll with good grinding performance and preparing method thereof Download PDFInfo
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- CN105463330A CN105463330A CN201510882255.XA CN201510882255A CN105463330A CN 105463330 A CN105463330 A CN 105463330A CN 201510882255 A CN201510882255 A CN 201510882255A CN 105463330 A CN105463330 A CN 105463330A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2261/00—Machining or cutting being involved
Abstract
The invention relates to a cold-rolled aluminum working roll with good grinding performance. The working roll comprises chemical components which include, by weight percent, 0.85-0.95% of C, 0.25-0.45% of Si, 0.25-0.35% of Mn, 2.50-3.50% of Cr, 0.20-0.40% of Mo, smaller than or equal to 0.25% of Ni, smaller than or equal to 0.025% of P, smaller than or equal to 0.025% of S and the balance Fe and inevitable impurities. According to the cold-rolled aluminum working roll with the good grinding performance, the cold-rolled aluminum working roll with the good grinding performance is obtained, the requirements for surface hardness and roll face roughness of the working roll are met at the same time, and it is verified that effects are good after a user uses the cold-rolled aluminum working roll.
Description
Technical field
The present invention relates to roll manufacturing technology field, especially a kind of cold rolling aluminium working roll and manufacture method thereof with good grindability.
Background technology
At present, the Al and Alalloy sheet band product of advanced cold rolling aluminum recycling is directly used in some field product manufacturing as finished product or work in-process, and meanwhile the appearance requirement of people to cold rolling Al and Alalloy product is also more and more higher.The cold rolling aluminium working roll of 9Cr3Mo material that traditional technology manufactures, under the grinding process of regulation, needs grinding repeatedly just can meet the requirements of roll surface surface quality and roughness value sometimes.Reach roll surface surface quality requirements often, but roughness value is on the low side, do not reach after using on the machine the rolling cycle will occur skid or product do not meet surface quality requirements; When adjusting grinding parameter and meeting the requirements of roughness, roll surface there will be spiricle, the dark defect such as line, scuffing, can not go up machine.According to incompletely statistics, this situation occurs in the cold rolling aluminium manufacturer of majority, and accounts for certain ratio, causes impact to labour intensity, production efficiency, grinding cost and organization of production etc.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of cold rolling aluminium working roll and the manufacture method thereof with good grindability, be applicable to breaker roll surface quality and the extremely strict cold rolling aluminum sheet belt operation roll of mill of roughness requirements, improve the grinding performance of cold rolling aluminium working roll.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: the cold rolling aluminium working roll with good grindability, and chemical composition and the weight percentage of described working roll material be,
C0.85 ~ 0.95%, Si0.25 ~ 0.45%, Mn0.25 ~ 0.35%, Cr2.50 ~ 3.50%, Mo0.20 ~ 0.40%, Ni≤0.25%, P≤0.025%; S≤0.025%; All the other are Fe and inevitable impurity.
The further improvement of technical solution of the present invention is: chemical composition and the weight percentage of described working roll material be,
C0.88 ~ 0.93%, Si0.30 ~ 0.35%, Mn0.30 ~ 0.35%, Cr3.00 ~ 3.20%, Mo0.30 ~ 0.40%, Ni≤0.25%, P≤0.015%; S≤0.010%; All the other are Fe and inevitable impurity.
Technical scheme of the present invention also comprises: the manufacture method with the cold rolling aluminium working roll of good grindability, and described manufacture method comprises following process steps:
1) according to the chemical composition in working roll material and weight percentage preparation steel raw material, roller stock is obtained according to certain roller stock production technique;
2) rough turn and conditioning heat treatment is carried out to roller stock;
3) induction quenching thermal treatment is carried out to roller stock;
4) grinding is carried out according to the grinding process parameters of regulation.
The further improvement of technical solution of the present invention is: described step 1) in the detailed process of roller stock production technique be, steel raw material electric arc furnace and refining furnace are carried out smelting, being molded into electrode ingot, first anneal is carried out to electrode ingot after the demoulding, again snagging is carried out to electrode ingot, then esr is carried out, the chemical composition of the electrode ingot after remelting and weight percentage are chemically examined, chemically examine qualified after be forged into forging stock, heat treatment after forging is carried out to forging stock, finally carries out turnery processing and obtain roller stock.
The further improvement of technical solution of the present invention is: described step 2) in the detailed process of conditioning heat treatment be the roller stock after rough turn is heated to 930 ~ 980 DEG C, soaking time 10 ~ 15h; Below the roller stock air cooling to 300 DEG C after insulation, then roller stock is heated to 620 ~ 650 DEG C and carries out high tempering, the high tempering time is 20 ~ 30h.
The further improvement of technical solution of the present invention is: described step 3) in the heat treated detailed process of induction quenching be, roller stock after conditioning heat treatment is transferred in induction hardening equipment, be heated to 900 ~ 920 DEG C, deep cooling is carried out in the liquid nitrogen tank that roller stock after heating enters-90 ~-150 DEG C, the deep cooling time is 4 ~ 6h, roller stock after deep cooling is risen again in atmosphere to room temperature, then roller stock is heated to 80 ~ 180 DEG C and carries out low-temperaturetempering, and the low-temperaturetempering time is 80 ~ 150h.
The further improvement of technical solution of the present invention is: described step 4) in the width of grinding process medium plain emery wheel be 100mm, diameter is 900mm, and granularity is 120 orders.
The further improvement of technical solution of the present invention is: described step 4) in grinding process parameters be specially, lateral feed is 0 ~ 0.014mm/min, length feed amount is 530 ~ 3100mm/min, and the rotating speed of emery wheel is 425 ~ 594rps, and the rotating speed of cold roll is 38rpm.
The further improvement of technical solution of the present invention is: the surface hardness of described working roll is 90 ~ 100HSD.
The further improvement of technical solution of the present invention is: the roll surface roughness of described working roll after grinding is Ra0.500 ~ 0.650 μm.
Owing to have employed technique scheme, the technical progress that the present invention obtains is:
The present invention is by the improvement to cold rolling aluminium working roll material and manufacture method, improve the grinding performance of cold rolling aluminium working roll, obtain the cold rolling aluminium working roll with good grindability, meet the surface hardness of working roll and the requirement of roll surface roughness simultaneously, use verification the verifying results good through user.At the cold rolling aluminum recycling of sheet band, import roll can be instead of.
The chemical composition of the present invention in material and weight percentage have done larger improvement, compared with the cold rolling aluminium working roll of traditional 9Cr3Mo material, the present invention carries out rational proportion to the C in cold roll material and other alloying element, control 0.25 ~ 0.45% to the content of Si element, preferably 0.30 ~ 0.35%, solution strengthening matrix.Control to be increased to 0.25 ~ 0.35% to the content of Mn element, preferably 0.30 ~ 0.35%, when promoting heating, carbides in austenite dissolves quantity, improves hardening capacity and matrix strength.Control to be increased to 0.20 ~ 0.40%, preferred 0.30-0.40% to the content of Mo element, increase high rigidity, high-wearing feature carbide quantity, during same rigidity, tempering temperature improves, and strengthens structure stability.
Present invention obtains the cold rolling aluminium working roll with good grindability, make roll better send out the rolling requirements adapting to the cold rolling aluminum recycling of sheet band, solve the difficult problem that grinding efficiency is low, reduce the consumption of roll dressing amount simultaneously.
The present invention carries out larger improvement to the manufacturing technology steps of cold roll, and roller stock production technique can ensure to reduce gas and non-metallic inclusion content in steel, improves Molten Steel Cleanliness, obtains uniform small grains, the roller stock of good mechanical performance.By carrying out conditioning heat treatment to roller stock, make roller stock structural transformation be globular pearlite, grain fineness number is moderate, homogeneous microstructure, and carbide is that particulate state is separated out.By carrying out induction quenching process to roller stock, make body of roll homogeneous microstructure, hardness, wear resistance improve, and paralympic reduction after deepfreeze, detects metallographic structure after tempering, and the kind of carbide particle, size, quantity are obviously improved.Define roller stock grinding process parameters, make roll under rational grinding process, both obtain good roll surface quality, reduce Grinding defects, required roughness can be obtained again.
Accompanying drawing explanation
Fig. 1 is body of roll metallographic structure microgram of the present invention;
Fig. 2 is traditional body of roll metallographic structure microgram.
Embodiment
The invention discloses the cold rolling aluminium working roll with good grindability, the chemical composition of working roll material and weight percentage be,
C0.85 ~ 0.95%, Si0.25 ~ 0.45%, Mn0.25 ~ 0.35%, Cr2.50 ~ 3.50%, Mo0.20 ~ 0.40%, Ni≤0.25%, P≤0.025%; S≤0.025%; All the other are Fe and inevitable impurity.
The chemical composition of working roll material and weight percentage, more preferably,
C0.88 ~ 0.93%, Si0.30 ~ 0.35%, Mn0.30 ~ 0.35%, Cr3.00 ~ 3.20%, Mo0.30 ~ 0.40%, Ni≤25%, P≤0.015%; S≤0.010%; All the other are Fe and inevitable impurity.
The invention also discloses the manufacture method of the cold rolling aluminium working roll with good grindability, manufacture method comprises following process steps:
1) according to the chemical composition in working roll material and weight percentage preparation steel raw material, roller stock is obtained according to certain roller stock production technique.
Step 1) in the detailed process of roller stock production technique be, steel raw material electric arc furnace and refining furnace are carried out smelting, being molded into electrode ingot, first anneal is carried out to electrode ingot after the demoulding, again snagging is carried out to electrode ingot, then carry out esr, the chemical composition of the electrode ingot after remelting and weight percentage chemically examined, chemically examine qualified after be forged into forging stock, heat treatment after forging is carried out to forging stock, finally carries out turnery processing and obtain roller stock.
2) rough turn and conditioning heat treatment is carried out to roller stock.
Step 2) in the detailed process of conditioning heat treatment be the roller stock after rough turn is heated to 930 ~ 980 DEG C, soaking time 10 ~ 15h; Below the roller stock air cooling to 300 DEG C after insulation, then roller stock is heated to 620 ~ 650 DEG C and carries out high tempering, the high tempering time is 20 ~ 30h.
3) induction quenching thermal treatment is carried out to roller stock.
Step 3) in the heat treated detailed process of induction quenching be, roller stock after conditioning heat treatment is transferred in induction hardening equipment, be heated to 900 ~ 920 DEG C, deep cooling is carried out in the liquid nitrogen tank that roller stock after heating enters-90 ~-150 DEG C, the deep cooling time is 4 ~ 6h, roller stock after deep cooling is risen again in atmosphere to room temperature, then roller stock is heated to 80 ~ 180 DEG C and carries out low-temperaturetempering, and the low-temperaturetempering time is 80 ~ 150h.
4) grinding is carried out according to the grinding process parameters of regulation.
Step 4) in the width of grinding process medium plain emery wheel be 100mm, diameter is 900mm, and granularity is 120 orders.
Step 4) in grinding process parameters be specially, lateral feed is 0 ~ 0.014mm/min, and length feed amount is 530 ~ 3100mm/min, and the rotating speed of emery wheel is 425 ~ 594rps, and the rotating speed of cold roll is 38rpm.
The cold rolling aluminium working roll with good grindability disclosed by the invention, test the surface hardness of working roll, testing method is: adopt D type mechanical type Shore scleroscope Site Detection, test result numerical value unit HSD.The surface hardness of working roll is 90 ~ 100HSD.The roll surface roughness of working roll after grinding is tested, testing method is: adopt surface roughness instruments Site Detection, test result adopts Ra to represent, numerical value unit μm, Ra meaning is the arithmetic average deviation of surface profile, and numerical value refers to the arithmetical av of ordinate value absolute value in a sample length.The roll surface roughness of working roll after grinding is Ra0.500 ~ 0.650 μm.
Below in conjunction with embodiment, the present invention is described in further details:
Embodiment 1
The manufacture method with the cold rolling aluminium working roll of good grindability of the present embodiment, comprises following process steps:
1) according to the chemical composition in working roll material and weight percentage preparation steel raw material, roller stock is obtained according to certain production technique.
Be specially, steel raw material electric arc furnace and refining furnace are carried out smelting, being molded into electrode ingot, first anneal is carried out to electrode ingot after the demoulding, again snagging is carried out to electrode ingot, then carry out esr, the chemical composition of the electrode ingot after remelting and weight percentage chemically examined, chemically examine qualified after be forged into forging stock, heat treatment after forging is carried out to forging stock, finally carries out turnery processing and obtain roller stock.
Shown in the weight percentage test result of the Main chemical component in the cold rolling aluminium working roll material of the present embodiment arranges see embodiment in table 11, all the other are Fe and inevitable impurity.
2) rough turn and conditioning heat treatment is carried out to roller stock.
Be specially, the roller stock after rough turn is heated to 930 DEG C, soaking time 15h; Below the roller stock air cooling to 300 DEG C after insulation, then roller stock is heated to 630 DEG C and carries out high tempering, the high tempering time is 30h.
3) induction quenching thermal treatment is carried out to roller stock.
Be specially, roller stock after conditioning heat treatment is transferred in induction hardening equipment, be heated to 900 DEG C, the liquid nitrogen tank that roller stock after heating enters-90 DEG C carries out deep cooling, the deep cooling time is 5h, roller stock after deep cooling is risen again in atmosphere to room temperature, then roller stock is heated to 150 DEG C and carries out low-temperaturetempering, and the low-temperaturetempering time is 120h.
4) grinding is carried out according to certain grinding process parameters.
Be specially, the width of the emery wheel selected in grinding process is 100mm, and diameter is 900mm, and granularity is 120 orders.Grinding process parameters is specially,
The roll surface hardness of the cold rolling aluminium working roll that the present embodiment obtains is 95 ~ 96HSD, and the roll surface roughness that cold rolling aluminium working roll obtains after grinding is Ra0.545 ~ 0.576 μm.
Fig. 1 is the body of roll metallographic structure microgram of the present embodiment.
Embodiment 2
The cold rolling aluminium working roll with good grindability of the present embodiment, after tested, shown in the content of Main chemical component arranges see embodiment in table 12, all the other are Fe and inevitable impurity to the weight percentage of the Main chemical component in its material.
The manufacture method with the cold rolling aluminium working roll of good grindability of the present embodiment, its processing step is close with embodiment 1, and differ shown in other concrete heat treatment parameter arranges see embodiment in table 22 with embodiment 1, concrete ground parameter is identical with embodiment 1.
The roll surface hardness of the cold rolling aluminium working roll that the present embodiment obtains is 96 ~ 98HSD, and the roll surface roughness that cold roll obtains after grinding is Ra0.581 ~ 0.615 μm.
Embodiment 3
The cold rolling aluminium working roll with good grindability of the present embodiment, after tested, shown in the content of Main chemical component arranges see embodiment in table 13, all the other are Fe and inevitable impurity to the weight percentage of the Main chemical component in its material.
The manufacture method with the cold rolling aluminium working roll of good grindability of the present embodiment, its processing step is close with embodiment 1, and differ shown in other concrete heat treatment parameter arranges see embodiment in table 23 with embodiment 1, concrete ground parameter is identical with embodiment 1.
The roll surface hardness of the cold rolling aluminium working roll that the present embodiment obtains is 97 ~ 99HSD, and the roll surface roughness that cold roll obtains after grinding is Ra0.599 ~ 0.633 μm.
Embodiment 4
The cold rolling aluminium working roll with good grindability of the present embodiment, after tested, shown in the content of Main chemical component arranges see embodiment in table 14, all the other are Fe and inevitable impurity to the weight percentage of the Main chemical component in its material.
The manufacture method with the cold rolling aluminium working roll of good grindability of the present embodiment, its processing step is close with embodiment 1, and differ shown in other concrete heat treatment parameter arranges see embodiment in table 24 with embodiment 1, concrete ground parameter is identical with embodiment 1.
The roll surface hardness of the cold rolling aluminium working roll that the present embodiment obtains is 95 ~ 97HSD, and the roll surface roughness that cold roll obtains after grinding is Ra0.562 ~ 0.594 μm.
Comparative example 1 (D1)
The cold rolling aluminium working roll of this comparative example, the weight percentage of the various chemical compositions in its material is after tested:
C:0.93%, Si:0.30%, Mn:0.25%, Cr:3.02%, Mo:0.23%, Ni:0.04%, P:0.011%, S:0.005%, all the other are Fe and inevitable impurity.
This comparative example roll is produced and is comprised following process steps:
1) according to the chemical composition in working roll material and weight percentage preparation steel raw material, roller stock is obtained according to certain production technique.
Be specially, steel raw material electric arc furnace and refining furnace are carried out smelting, being molded into electrode ingot, first anneal is carried out to electrode ingot after the demoulding, again snagging is carried out to electrode ingot, then carry out esr, the chemical composition of the electrode ingot after remelting and weight percentage chemically examined, chemically examine qualified after be forged into forging stock, heat treatment after forging is carried out to forging stock, finally carries out turnery processing and obtain roller stock.
2) rough turn and conditioning heat treatment is carried out to roller stock.
Be specially, the roller stock after rough turn is heated to 895 DEG C, soaking time 15h; By the body of roll water-spraying control 30min after insulation, roll neck 5min, then roller stock is heated to 630 DEG C and carries out high tempering, the high tempering time is 24h.
3) induction quenching thermal treatment is carried out to roller stock.
Be specially, roller stock after conditioning heat treatment is transferred in induction hardening equipment, be heated to 915 DEG C, the liquid nitrogen tank that roller stock after heating enters-60 DEG C carries out deep cooling, the deep cooling time is 4h, roller stock after deep cooling is risen again in atmosphere to room temperature, then roller stock is heated to 130 DEG C and carries out low-temperaturetempering, and the low-temperaturetempering time is 100h.
4) grinding is carried out according to certain grinding process parameters.
Be specially, the width of the emery wheel selected in grinding process is 100mm, and diameter is 900mm, and granularity is 120 orders.Grinding process parameters is specially, and lateral feed is 0 ~ 0.014mm/min, and length feed amount is 530 ~ 3100mm/min, and the rotating speed of emery wheel is 425-594rps, and the rotating speed of cold roll is 38rpm.
The roll surface hardness of the cold rolling aluminium working roll that this comparative example obtains is 95 ~ 96HSD, and the roll surface roughness that cold roll obtains after grinding is Ra0.411 ~ 0.448 μm.
Fig. 2 is the body of roll metallographic structure microgram of the present embodiment.
Table 1 embodiment 1 ~ 4 cold rolling aluminium working roll Contents of Main Components synopsis
Table 2 embodiment 1 ~ 4 cold rolling aluminium work roll thermal treatment process parameter lookup table
Table 3 embodiment 1 ~ 4, comparative example 1 cold rolling aluminium working roll performance perameter
As can be seen from Table 3, the cold rolling aluminium working roll with good grindability of the present invention, has suitable roll surface roughness and good surface hardness concurrently, and user's result of use is good, improves production efficiency, reduces operating cost.
Claims (10)
1. there is the cold rolling aluminium working roll of good grindability, it is characterized in that: chemical composition and the weight percentage of described working roll material be,
C0.85 ~ 0.95%, Si0.25 ~ 0.45%, Mn0.25 ~ 0.35%, Cr2.50 ~ 3.50%, Mo0.20 ~ 0.40%, Ni≤0.25%, P≤0.025%; S≤0.025%; All the other are Fe and inevitable impurity.
2. the cold rolling aluminium working roll with good grindability according to claim 1, is characterized in that: chemical composition and the weight percentage of described working roll material be,
C0.88 ~ 0.93%, Si0.30 ~ 0.35%, Mn0.30 ~ 0.35%, Cr3.00 ~ 3.20%, Mo0.30 ~ 0.40%, Ni≤0.25%, P≤0.015%; S≤0.010%; All the other are Fe and inevitable impurity.
3. there is the manufacture method of the cold rolling aluminium working roll of good grindability, it is characterized in that: described manufacture method comprises following process steps:
1) according to the chemical composition in working roll material and weight percentage preparation steel raw material, roller stock is obtained according to certain roller stock production technique;
2) rough turn and conditioning heat treatment is carried out to roller stock;
3) induction quenching thermal treatment is carried out to roller stock;
4) grinding is carried out according to the grinding process parameters of regulation.
4. the preparation method with the cold rolling aluminium working roll of good grindability according to claim 3, it is characterized in that: in described step 1), the detailed process of roller stock production technique is, steel raw material electric arc furnace and refining furnace are smelted, be molded into electrode ingot, first anneal is carried out to electrode ingot after the demoulding, again snagging is carried out to electrode ingot, then esr is carried out, the chemical composition of the electrode ingot after remelting and weight percentage are chemically examined, chemically examine qualified after be forged into forging stock, heat treatment after forging is carried out to forging stock, finally carry out turnery processing and obtain roller stock.
5. the preparation method with the cold rolling aluminium working roll of good grindability according to claim 3, is characterized in that: described step 2) in the detailed process of conditioning heat treatment be the roller stock after rough turn is heated to 930 ~ 980 DEG C, soaking time 10 ~ 15h; Below the roller stock air cooling to 300 DEG C after insulation, then roller stock is heated to 620 ~ 650 DEG C and carries out high tempering, the high tempering time is 20 ~ 30h.
6. the preparation method with the cold rolling aluminium working roll of good grindability according to claim 3, it is characterized in that: in described step 3), the heat treated detailed process of induction quenching is, roller stock after conditioning heat treatment is transferred in induction hardening equipment, be heated to 900 ~ 920 DEG C, deep cooling is carried out in the liquid nitrogen tank that roller stock after heating enters-90 ~-150 DEG C, the deep cooling time is 4 ~ 6h, roller stock after deep cooling is risen again in atmosphere to room temperature, roller stock is heated to 80 ~ 180 DEG C again and carries out low-temperaturetempering, the low-temperaturetempering time is 80 ~ 150h.
7. the preparation method with the cold rolling aluminium working roll of good grindability according to claim 3, is characterized in that: the width of the grinding process medium plain emery wheel in described step 4) is 100mm, and diameter is 900mm, and granularity is 120 orders.
8. the preparation method with the cold rolling aluminium working roll of good grindability according to claim 7, it is characterized in that: the grinding process parameters in described step 4) is specially, lateral feed is 0 ~ 0.014mm/min, length feed amount is 530 ~ 3100mm/min, the rotating speed of emery wheel is 425 ~ 594rps, and the rotating speed of cold roll is 38rpm.
9. the preparation method with the cold rolling aluminium working roll of good grindability according to claim 8, is characterized in that: the surface hardness of described working roll is 90 ~ 100HSD.
10. the preparation method with the cold rolling aluminium working roll of good grindability according to claim 8, is characterized in that: the roll surface roughness of described working roll after grinding is Ra0.500 ~ 0.650 μm.
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| CN201510882255.XA CN105463330B (en) | 2015-12-03 | 2015-12-03 | Cold rolling aluminium working roll and its manufacturing method with good grindability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643906A (en) * | 2019-10-31 | 2020-01-03 | 宝钢轧辊科技有限责任公司 | Manufacturing method of easily-ground forged steel cold roll |
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| DE4143012A1 (en) * | 1991-12-24 | 1993-07-01 | Thyssen Edelstahlwerke Ag | STEEL FOR COLD ROLLERS |
| JPH06159368A (en) * | 1992-11-25 | 1994-06-07 | Nippon Seiko Kk | Roller bearing |
| CN101481776A (en) * | 2009-02-13 | 2009-07-15 | 宝钢集团常州轧辊制造公司 | Cold rolling working roll with anti-rollar mark and high-wearing resistance and manufacturing method thereof |
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2015
- 2015-12-03 CN CN201510882255.XA patent/CN105463330B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6277418A (en) * | 1985-09-30 | 1987-04-09 | Nippon Steel Corp | Production of high-strength and high-ductility steel wire |
| DE4143012A1 (en) * | 1991-12-24 | 1993-07-01 | Thyssen Edelstahlwerke Ag | STEEL FOR COLD ROLLERS |
| JPH06159368A (en) * | 1992-11-25 | 1994-06-07 | Nippon Seiko Kk | Roller bearing |
| CN101481776A (en) * | 2009-02-13 | 2009-07-15 | 宝钢集团常州轧辊制造公司 | Cold rolling working roll with anti-rollar mark and high-wearing resistance and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643906A (en) * | 2019-10-31 | 2020-01-03 | 宝钢轧辊科技有限责任公司 | Manufacturing method of easily-ground forged steel cold roll |
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