CN105220075A - A kind of rolling technology that adopts is to produce the method for ball grinding machine lining board - Google Patents
A kind of rolling technology that adopts is to produce the method for ball grinding machine lining board Download PDFInfo
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- CN105220075A CN105220075A CN201510729927.3A CN201510729927A CN105220075A CN 105220075 A CN105220075 A CN 105220075A CN 201510729927 A CN201510729927 A CN 201510729927A CN 105220075 A CN105220075 A CN 105220075A
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- grinding machine
- ball grinding
- lining board
- machine lining
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a kind of rolling technology that adopts to produce the method for ball grinding machine lining board, include following steps: steel scrap material is inserted in middle frequency furnace and carried out melting by (1); (2) molten steel sampled, chemically examine, detect the content of each element in molten steel, and add a certain amount of trace element, constituent content each in molten steel is configured; (3) Metamorphism treatment; (4) pouring molten steel is become steel billet; (5) when the surface temperature of steel billet is reduced to 850-950 DEG C, billet rolling is become rod iron; (6) rod iron is cut into the length blank all identical with ball grinding machine lining board to be formed with end shape; (7) blank is polished; (8) thermal treatment; Ball grinding machine lining board internal structure that the present invention adopts rolling technology to produce is fine and close, makes ball grinding machine lining board have good physical strength and impelling strength and wear resisting property, reduces labour intensity and the production cost of workman, improve production efficiency and economic benefit.
Description
Technical field
The present invention relates to the production method of ball grinding machine lining board, especially a kind of method adopting rolling technology to produce the ball grinding machine lining board with high mechanical strength and impelling strength and wear resisting property.
Background technology
Current, ball mill, as disintegrating apparatus, is widely used in the industries such as mining, building materials and coal.But the liner plate in ball mill barrel is main consumable accessory, liner plate shape is divided into block shape and bar shaped two kinds substantially, and material is mainly manganese steel, steel alloy and rubber etc.
See Fig. 1, Fig. 2, the bar scaleboard of existing ball mill metal material has following structure: ball grinding machine lining board has strip body 1, the two ends of body 1 have the internal corner structure 101 be arranged symmetrically, and on the long side along body 1, be provided with a deep gouge 102; When specifically installing and using, deep gouge 102 is as installation position, and two pieces of identical ball grinding machine lining boards at the mutual wedging in deep gouge 102 place together.The production technique that this liner plate adopts is casting, and master operation includes smelting, mulling, moulding, cast, sand removal, polishing, thermal treatment.Owing to there is the mass defects such as slag inclusion, pore, shrinkage porosite, cold shut in casting technique, had a strong impact on physical strength and the wear resisting property of liner plate, and for a whole set of casting process, production cost is high, labor strength is large, production efficiency is low, can not obtain good economic benefit.
Summary of the invention
Object of the present invention is exactly that the ball grinding machine lining board that will solve the production of current employing casting technique exists the mass defects such as slag inclusion, pore, shrinkage porosite, cold shut, physical strength and the wear resisting property of liner plate are had a strong impact on, cast cost high simultaneously, the problem that labor strength is large, production efficiency is low, provides a kind of method adopting rolling technology to produce the ball grinding machine lining board with high mechanical strength and impelling strength and wear resisting property for this reason.
Concrete scheme of the present invention is: a kind of rolling technology that adopts, to produce the method for ball grinding machine lining board, includes following steps:
(1) melting, inserted in middle frequency furnace by steel scrap material and carry out melting, smelting temperature is: 1600-1630 DEG C;
(2) prepare burden, molten steel in middle frequency furnace is sampled, chemically examined, detect the content of each element in molten steel, and in molten steel, configuring a certain amount of trace element, until the weight percent of each element reaches following requirement in molten steel: C0.30-0.35%, Mn0.90-1.2%, Si0.90-1.2%, Ni1.0-1.2%, Cr0.90-1.2%, Mo0.20-0.3%, S≤0.025%, P≤0.025%, Cu0.5-1.5%, Re0.1-0.2%, surplus are Fe;
(3) Metamorphism treatment, alterant iron sheet or masking foil parcel are placed on ladle bottom, and carry out Metamorphism treatment to the molten steel reaching element ratio requirement, wherein alterant is rare earth metal;
(4) strand, the pouring molten steel after Metamorphism treatment is become steel billet, and teeming temperature is at 1560-1580 DEG C;
(5) rolling, when the surface temperature of steel billet is reduced to 850-950 DEG C, adopt rolling mill that billet rolling is become rod iron, the cross section of rod iron is identical with the cross section of ball grinding machine lining board to be formed;
(6) cut, use automatic cutting machine rod iron to be cut into the length blank all identical with ball grinding machine lining board to be formed with end shape;
(7) polish, each end face of the blank of excision forming and corner are polished;
(8) thermal treatment, is fed into process furnace by the shaping ball grinding machine lining board of polishing, is warming up to 1000-1050 DEG C, insulation 5-6 hour; Then quench 2-3 hour in pond; Finally ball grinding machine lining board is returned to process furnace, at 200-250 DEG C after tempering 2-3 hour, naturally cooling in process furnace.
When preparing burden in the present invention, the requirement that in molten steel, the weight percent of each element reaches is: C0.32%, Mn1.0%, Si0.95%, Ni1.1%, Cr1.0%, Mo0.25%, S≤0.015%, P≤0.015%, Cu0.8%, Re0.15%, surplus are Fe.
Ball grinding machine lining board described in the present invention has strip body, and the two ends of body have the internal corner structure be arranged symmetrically, and is provided with a direct through groove on the long side of body; Described ball grinding machine lining board is when specifically installing and using, and direct through groove is as installation position, and two pieces of identical ball grinding machine lining boards at the mutual wedging in direct through groove place together.
The long 1055mm of ball grinding machine lining board described in the present invention, wide 125mm, thick 90mm, straight-through flute length 1055mm, wide 50mm, dark 10mm.
The invention has the beneficial effects as follows: produce ball grinding machine lining board by adopting rolling technology, avoid the quality problems such as slag inclusion, pore, shrinkage porosite, cold shut that existing casting technique exists, make ball grinding machine lining board internal structure more closely knit, improve the dimensional precision of liner plate, physical strength and impelling strength and wear resisting property, extend the work-ing life of ball grinding machine lining board, and, in technique, more easily realize in enormous quantities, automatic production, energy-conserving and environment-protective, reduce labour intensity and the production cost of workman, improve productivity effect and economic benefit.
Accompanying drawing explanation
The schematic front view of the ball grinding machine lining board that the current employing casting technique of Fig. 1 is produced;
Fig. 2 is that schematic diagram (semisectional view) is looked on a left side of Fig. 1;
Fig. 3 is the rod iron schematic front view by rolling mill rolling in the present invention;
Fig. 4 is that schematic diagram is looked on a left side of Fig. 3;
Fig. 5 is the schematic front view of the ball grinding machine lining board that the present invention produces;
Fig. 6 is that schematic diagram is looked on a left side of Fig. 5.
In figure: 1-body, 101-internal corner structure, 102-deep gouge, 2-body, 201-internal corner structure, 202-direct through groove.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is further described.
Embodiment one:
For the ball grinding machine lining board that current mine concentration uses more Φ 2700 × 3600 ball mill to use.
The present invention includes following steps:
(1) melting, inserted in middle frequency furnace by steel scrap material and carry out melting, smelting temperature is: 1600 DEG C;
(2) prepare burden, molten steel in middle frequency furnace is sampled, chemically examined, detect the content of each element in molten steel, and in molten steel, configuring a certain amount of trace element, until the weight percent of each element reaches following requirement in molten steel: C0.30%, Mn0.90%, Si0.90%, Ni1.0%, Cr0.90%, Mo0.20%, S0.025%, P0.025%, Cu0.5%, Re0.1%, surplus are Fe;
(3) Metamorphism treatment, alterant iron sheet or masking foil parcel are placed on ladle bottom, and carry out Metamorphism treatment to the molten steel reaching element ratio requirement, wherein rare earth metal selected by alterant;
(4) strand, becomes steel billet by the pouring molten steel after Metamorphism treatment, and teeming temperature is at 1560 DEG C;
(5) rolling, when the surface temperature of steel billet is reduced to 850 DEG C, adopt rolling mill to be become by billet rolling length to be 8000-9000mm rod iron, the cross section of rod iron is identical with the cross section of ball grinding machine lining board to be formed, see Fig. 3, Fig. 4;
(6) cut, use automatic cutting machine rod iron to be cut into the length blank all identical with ball grinding machine lining board to be formed with end shape;
(7) polish, each end face of the blank of excision forming and corner are polished;
(8) thermal treatment, is fed into process furnace by the shaping ball grinding machine lining board of polishing, is warming up to 1000 DEG C, is incubated 5 hours; Then quench 2 hours in pond; Finally ball grinding machine lining board is returned to process furnace, at 200 DEG C, tempering is after 2 hours, naturally cooling in process furnace.
Ball grinding machine lining board described in the present embodiment has strip body 2, and the two ends of body 2 have the internal corner structure 201 be arranged symmetrically, and on the long side of body 2, is provided with a direct through groove 202, see Fig. 5, Fig. 6.
The long 1055mm of ball grinding machine lining board described in the present embodiment, wide 125mm, thick 90mm, the long 1055mm of direct through groove 202, wide 50mm, dark 10mm.
Embodiment two:
For the ball grinding machine lining board that current mine concentration uses more Φ 2700 × 3600 ball mill to use.
The present invention includes following steps:
(1) melting, inserted in middle frequency furnace by steel scrap material and carry out melting, smelting temperature is: 1630 DEG C;
(2) prepare burden, molten steel in middle frequency furnace is sampled, chemically examined, detect the content of each element in molten steel, and in molten steel, configuring a certain amount of trace element, until the weight percent of each element reaches following requirement in molten steel: C0.35%, Mn1.2%, Si1.2%, Ni1.2%, Cr1.2%, Mo0.3%, S0.015%, P0.015%, Cu1.5%, Re0.2%, surplus are Fe;
(3) Metamorphism treatment, alterant iron sheet or masking foil parcel are placed on ladle bottom, and carry out Metamorphism treatment to the molten steel reaching element ratio requirement, wherein rare earth metal selected by alterant;
(4) strand, becomes steel billet by the pouring molten steel after Metamorphism treatment, and teeming temperature is at 1580 DEG C;
(5) rolling, when the surface temperature of steel billet is reduced to 950 DEG C, adopt rolling mill to be become by billet rolling length to be 8000-9000mm rod iron, the cross section of rod iron is identical with the cross section of ball grinding machine lining board to be formed, see Fig. 3, Fig. 4;
(6) cut, use automatic cutting machine rod iron to be cut into the length blank all identical with ball grinding machine lining board to be formed with end shape;
(7) polish, each end face of the blank of excision forming and corner are polished;
(8) thermal treatment, is fed into process furnace by the shaping ball grinding machine lining board of polishing, is warming up to 1050 DEG C, is incubated 6 hours; Then quench 3 hours in pond; Finally ball grinding machine lining board is returned to process furnace, at 250 DEG C, tempering is after 3 hours, naturally cooling in process furnace.
Ball grinding machine lining board described in the present embodiment has strip body 2, and the two ends of body 2 have the internal corner structure 201 be arranged symmetrically, and on the long side of body 2, is provided with a direct through groove 202, see Fig. 5, Fig. 6.
The long 1055mm of ball grinding machine lining board described in the present embodiment, wide 125mm, thick 90mm, the long 1055mm of direct through groove 202, wide 50mm, dark 10mm.
Embodiment three:
For the ball grinding machine lining board that current mine concentration uses more Φ 2700 × 3600 ball mill to use.
The present invention includes following steps:
(1) melting, be that raw material is inserted in middle frequency furnace and carried out melting by steel scrap material, smelting temperature is: 1615 DEG C, and steel scrap material has preferably cancelled the ball grinding machine lining board of manganese steel material of process;
(2) prepare burden, molten steel in middle frequency furnace is sampled, chemically examined, detect the content of each element in molten steel, and in molten steel, configuring a certain amount of trace element, until the weight percent of each element reaches following requirement in molten steel: C0.32%, Mn1.0%, Si0.95%, Ni1.1%, Cr1.0%, Mo0.25%, S0.01%, P0.01%, Cu0.8%, Re0.15%, surplus are Fe;
(3) Metamorphism treatment, alterant iron sheet or masking foil parcel are placed on ladle bottom, and carry out Metamorphism treatment to the molten steel reaching element ratio requirement, deterroration is preferably 1600-1630 DEG C, and alterant is preferably rare earth metal;
(4) strand, becomes steel billet by the pouring molten steel after Metamorphism treatment, and teeming temperature is at 1570 DEG C;
(5) rolling, when the surface temperature of steel billet is reduced to 900 DEG C, adopt rolling mill to be become by billet rolling length to be 8000-9000mm rod iron, the cross section of rod iron is identical with the cross section of ball grinding machine lining board to be formed, see Fig. 3, Fig. 4;
(6) cut, use automatic cutting machine rod iron to be cut into the length blank all identical with ball grinding machine lining board to be formed with end shape;
(7) polish, each end face of the blank of excision forming and corner are polished;
(8) thermal treatment, is fed into process furnace by the shaping ball grinding machine lining board of polishing, is warming up to 1020 DEG C, is incubated 5.5 hours; Then quench 2.5 hours in pond; Finally ball grinding machine lining board is returned to process furnace, at 230 DEG C, tempering is after 2.5 hours, naturally cooling in process furnace.
Ball grinding machine lining board described in the present embodiment has strip body 2, and the two ends of body 2 have the internal corner structure 201 be arranged symmetrically, and on the long side of body 2, is provided with a direct through groove 202, see Fig. 5, Fig. 6.
The long 1055mm of ball grinding machine lining board described in the present embodiment, wide 125mm, thick 90mm, the long 1055mm of direct through groove 202, wide 50mm, dark 10mm.
The present invention compared with prior art, have the following advantages: (1) adopts the proportioning of element of the present invention to prepare burden, and rare earth is added before strand, Metamorphism treatment is carried out to molten steel, substantially increases the hardness of shaping ball grinding machine lining board, wear-resisting, high-temperature stability; (2) by adopting rolling technology to produce ball grinding machine lining board, avoid the quality problems such as slag inclusion, pore, shrinkage porosite, cold shut that existing casting technique exists, make ball grinding machine lining board internal structure more closely knit, improve the dimensional precision of liner plate, physical strength and impelling strength and wear resisting property, extend the work-ing life of ball grinding machine lining board; (3) the present invention more easily realizes in enormous quantities, automatic production in technique, and energy-conserving and environment-protective, reduce labour intensity and the production cost of workman, improves productivity effect and economic benefit.
It should be noted last that; above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted; for those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as within protection scope of the present invention.
Claims (4)
1. adopt rolling technology to produce a method for ball grinding machine lining board, include following steps:
(1) melting, inserted in middle frequency furnace by steel scrap material and carry out melting, smelting temperature is: 1600-1630 DEG C;
(2) prepare burden, molten steel in middle frequency furnace is sampled, chemically examined, detect the content of each element in molten steel, and in molten steel, configuring a certain amount of trace element, until the weight percent of each element reaches following requirement in molten steel: C0.30-0.35%, Mn0.90-1.2%, Si0.90-1.2%, Ni1.0-1.2%, Cr0.90-1.2%, Mo0.20-0.3%, S≤0.025%, P≤0.025%, Cu0.5-1.5%, Re0.1-0.2%, surplus are Fe;
(3) Metamorphism treatment, is placed on ladle bottom by alterant iron sheet or masking foil parcel, carries out Metamorphism treatment to the molten steel reaching element ratio requirement;
(4) strand, the pouring molten steel after Metamorphism treatment is become steel billet, and teeming temperature is at 1560-1580 DEG C;
(5) rolling, when the surface temperature of steel billet is reduced to 850-950 DEG C, adopt rolling mill that billet rolling is become rod iron, the cross section of rod iron is identical with the cross section of ball grinding machine lining board to be formed;
(6) cut, use automatic cutting machine rod iron to be cut into the length blank all identical with ball grinding machine lining board to be formed with end shape;
(7) polish, each end face of the blank of excision forming and corner are polished;
(8) thermal treatment, is fed into process furnace by the shaping ball grinding machine lining board of polishing, is warming up to 1000-1050 DEG C, insulation 5-6 hour; Then quench 2-3 hour in pond; Finally ball grinding machine lining board is returned to process furnace, at 200-250 DEG C after tempering 2-3 hour, naturally cooling in process furnace.
2. a kind of rolling technology that adopts according to claim 1 is to produce the method for ball grinding machine lining board, it is characterized in that: during batching, the requirement that in molten steel, the weight percent of each element reaches is: C0.32%, Mn1.0%, Si0.95%, Ni1.1%, Cr1.0%, Mo0.25%, S≤0.015%, P≤0.015%, Cu0.8%, Re0.15%, surplus are Fe.
3. a kind of rolling technology that adopts according to claim 1 is to produce the method for ball grinding machine lining board, it is characterized in that: described ball grinding machine lining board has strip body, the two ends of body have the internal corner structure be arranged symmetrically, and are provided with a direct through groove on the long side of body.
4. a kind of method adopting rolling technology to produce ball grinding machine lining board according to claim 1 or 3, is characterized in that: the long 1055mm of described ball grinding machine lining board, wide 125mm, thick 90mm, straight-through flute length 1055mm, wide 50mm, dark 10mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510729927.3A CN105220075B (en) | 2015-11-02 | 2015-11-02 | Method for producing lining plate of ball mill by adopting rolling technology |
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| CN201510729927.3A CN105220075B (en) | 2015-11-02 | 2015-11-02 | Method for producing lining plate of ball mill by adopting rolling technology |
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| CN105220075A true CN105220075A (en) | 2016-01-06 |
| CN105220075B CN105220075B (en) | 2017-05-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113999A (en) * | 2018-09-06 | 2019-01-01 | 宁波甬微集团有限公司 | The production method of partition in a kind of multicylinder compressor |
| CN116288055A (en) * | 2023-03-06 | 2023-06-23 | 山西中条山机电设备有限公司 | Large-scale semi-autogenous mill welt |
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| CN1714159A (en) * | 2002-11-19 | 2005-12-28 | 工业钢克鲁梭公司 | Method for making an abrasion resistant steel plate and plate obtained |
| CN101775539A (en) * | 2009-01-14 | 2010-07-14 | 宝山钢铁股份有限公司 | High-flexibility wear-resistant steel plate and manufacturing method thereof |
| CN102199737A (en) * | 2010-03-26 | 2011-09-28 | 宝山钢铁股份有限公司 | 600HB-grade wear resistant steel plate and its manufacturing method |
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2015
- 2015-11-02 CN CN201510729927.3A patent/CN105220075B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3761320A (en) * | 1972-03-06 | 1973-09-25 | Curtis Noll Corp | Abrasion resistant alloy steel |
| CN1714159A (en) * | 2002-11-19 | 2005-12-28 | 工业钢克鲁梭公司 | Method for making an abrasion resistant steel plate and plate obtained |
| CN101775539A (en) * | 2009-01-14 | 2010-07-14 | 宝山钢铁股份有限公司 | High-flexibility wear-resistant steel plate and manufacturing method thereof |
| CN102199737A (en) * | 2010-03-26 | 2011-09-28 | 宝山钢铁股份有限公司 | 600HB-grade wear resistant steel plate and its manufacturing method |
Non-Patent Citations (1)
| Title |
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| 杨满: "回火工艺", 《实用热处理技术手册》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113999A (en) * | 2018-09-06 | 2019-01-01 | 宁波甬微集团有限公司 | The production method of partition in a kind of multicylinder compressor |
| CN116288055A (en) * | 2023-03-06 | 2023-06-23 | 山西中条山机电设备有限公司 | Large-scale semi-autogenous mill welt |
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| CN105220075B (en) | 2017-05-24 |
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