CN104152815A - Liner plate of ball mill - Google Patents
Liner plate of ball mill Download PDFInfo
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- CN104152815A CN104152815A CN201410334462.7A CN201410334462A CN104152815A CN 104152815 A CN104152815 A CN 104152815A CN 201410334462 A CN201410334462 A CN 201410334462A CN 104152815 A CN104152815 A CN 104152815A
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- grinding machine
- lining board
- ball grinding
- machine lining
- liner plate
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Abstract
The invention relates to the technical field of ball-milling materials, and discloses a liner plate of a ball mill. The liner plate is prepared from the following chemical components in percentage by weight: 1.05-1.35% of C, 0.30-0.90% of Si, 16-19% of Mn, 1.50-2.50% of Cr, 4-6% of Ni, 0.30-1.00% of RE, less than or equal to 0.06% of P, less than or equal to 0.04% of S and the balance of Fe. Due to addition of a proper amount of rare earth, the alloy, namely the liner plate has the characteristics of high hardness, wearing resistance and high temperature resistance and is relatively good in toughness, good in impact resistance and free of noble alloy element, the structure property of the alloy is completely superior to that of a conventional medium-carbon medium-chromium alloy wear-resisting liner plate with molybdenum, nickel and copper, and the liner plate disclosed by the invention is low in production cost and very long in service life.
Description
Technical field
The present invention relates to high-abrasive material technical field, refer more particularly to a kind of ball grinding machine lining board.
Background technology
Lining board of grinder, except bearing the impact and wearing and tearing of grinding element and material, promotes the effect of grinding element in addition.Along with the fast development of material grinding technology, grinding machine becomes to giving maximization, and the performance of lining material is also had higher requirement, and improving its wear resistance is the emphasis of research.Lining material is through the development of more than 30 years, experienced high violent steel, common spoken parts in traditional operas cast steel, ni-hard cast iron, high chromium white iron to the developmental stage of the middle-low alloy steel of modified high manganese steel and various Q-tempering techniques.Current domestic large-sized grinder, its liner plate selection most high mangaenese steel that adopts, also has and adopts rich chromium cast iron, low alloy steel compound cast material.But from operation practice, the former practical life on large mill is only 0.5-1 year, and in use liner plate easily viscous deformation occurs and affects mill running; And the latter is because adopting bimetal composite casting, its castability is wayward, and result of use is also undesirable.For extending liner plate work-ing life, improve large-sized grinder operation factor, further improve Business Economic Benefit, research not only wear-resisting but also reliably lining material probe into development work necessary.
Chinese patent CN103627981A discloses a kind of antiwear high manganese steel lining material and preparation method thereof, it is characterized in that: chemical element composition and mass percent thereof that it contains are: carbon 1.2-1.4%, silicon 1.3-1.5%, manganese 9.2-10.4%, titanium 1.1-1.3%, chromium 0.9-1.3%, molybdenum 0.02-0.04%, aluminium 0.1-0.2%, lanthanum 0.02-0.04%, Nd0.04-0.07%, S≤0.04%, P≤0.04%, surplus are iron.The steel alloy of this invention adds the elements such as lanthanum, Nd, titanium on the basis of high carbon and high manganese steel, the steel alloy obtaining not only has the wear resistance of high hardness, excellence, but also have advantages of that good toughness, plasticity are good, and more excellent than common high mangaenese steel performance, be suitable as the lining material that wearing and tearing are large.But this invention is short work-ing life, easily broken, cost is high.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of wear-resisting reliable, and impact property is good low, the ball grinding machine lining board that hardness is high.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A ball grinding machine lining board, is characterized in that, comprises the chemical composition of following weight percent: C1.05-1.35%, Si0.30-0.90%, Mn16-19%, Cr1.50-2.50%, Ni4-6%, RE0.30-1.00%, P≤0.06%, S≤0.04%, surplus is Fe.
Preferably, described ball grinding machine lining board comprises the chemical composition of following weight percent: C1.05-1.15%, Si0.30-0.50%, Mn16-17%, Cr1.50-2.00%, Ni4-5%, RE0.30-0.80%, P≤0.04%, S≤0.02%, surplus is Fe.
Preferably, described ball grinding machine lining board comprises the chemical composition of following weight percent: C1.25%, Si0.75%, and Mn18%, Cr1.75%, Ni5%, RE0.85%, P0.02%, S0.01%, surplus is Fe.
Preferred, the making method of described ball grinding machine lining board comprises the following steps:
(1) adopting steel scrap material is that raw material is prepared burden according to the proportioning of described ball grinding machine lining board;
(2) raw material preparing is inserted to middle frequency furnace and carry out melting, smelting temperature is 1560-1580 ℃;
(3) alterant is placed in to ladle bottom with iron sheet or masking foil by parcel, to the molten steel processing of going bad, deterroration is 1550-1600 ℃, and the qualified molten steel of element is carried out to thread casting at 1500-1550 ℃ of temperature;
(4), when cast(ing) surface temperature is no more than 600 ℃, cooled ball grinding machine lining board plate is carried out to separation, fine grinding;
(5) ball grinding machine lining board after fine grinding is dropped into process furnace, be warming up to 900-950 ℃, be incubated 5-6 hours; Then isothermal quenching 2-2.2 hours in salt made from earth containing a comparatively high percentage of sodium chloride is bathed, salt made from earth containing a comparatively high percentage of sodium chloride bath temperature is 250-300 ℃, takes out for naturally cooling tap water flushing 1-3 times.
The present invention compared with prior art, have the following advantages: the present invention adds appropriate rare earth, make alloy there is high, wear-resisting, the resistant to elevated temperatures characteristic of hardness, toughness is better simultaneously, shock-resistance is good, and containing precious alloy element, its structure property surpasses in the tradition that adds molybdenum, nickel, copper Chrome metal powder abrasion-proof backing block in carbon completely, production cost of the present invention is low, and work-ing life is very long.
Embodiment
Below in conjunction with embodiment, technical scheme of the present invention is further described in detail.
Embodiment mono-:
A ball grinding machine lining board, comprises the chemical composition of following weight percent: C1.25%, Si0.75%, and Mn18%, Cr1.75%, Ni5%, RE0.85%, P0.02%, S0.01%, surplus is Fe;
The making method of described ball grinding machine lining board comprises the following steps:
(1) adopting steel scrap material is that raw material is prepared burden according to the proportioning of described ball grinding machine lining board;
(2) raw material preparing is inserted to middle frequency furnace and carry out melting, smelting temperature is 1580 ℃;
(3) alterant is placed in to ladle bottom with iron sheet or masking foil by parcel, to the molten steel processing of going bad, deterroration is 1550 ℃, and the qualified molten steel of element is carried out to thread casting at 1500 ℃ of temperature;
(4), when cast(ing) surface temperature is no more than 600 ℃, cooled ball grinding machine lining board plate is carried out to separation, fine grinding;
(5) ball grinding machine lining board after fine grinding is dropped into process furnace, be warming up to 900 ℃, be incubated 5 hours; Then isothermal quenching 2 hours in salt made from earth containing a comparatively high percentage of sodium chloride is bathed, salt made from earth containing a comparatively high percentage of sodium chloride bath temperature is 250 ℃, takes out for naturally cooling tap water flushing 1 time.
Embodiment bis-:
A ball grinding machine lining board, comprises the chemical composition of following weight percent: C1.35%, Si0.90%, and Mn19%, Cr2.50%, Ni6%, RE1.00%, P0.06%, S0.04%, surplus is Fe;
The making method of described ball grinding machine lining board comprises the following steps:
(1) adopting steel scrap material is that raw material is prepared burden according to the proportioning of described ball grinding machine lining board;
(2) raw material preparing is inserted to middle frequency furnace and carry out melting, smelting temperature is 1560 ℃;
(3) alterant is placed in to ladle bottom with iron sheet or masking foil by parcel, to the molten steel processing of going bad, deterroration is 1550 ℃, and the qualified molten steel of element is carried out to thread casting at 1500 ℃ of temperature;
(4), when cast(ing) surface temperature is no more than 600 ℃, cooled ball grinding machine lining board plate is carried out to separation, fine grinding;
(5) ball grinding machine lining board after fine grinding is dropped into process furnace, be warming up to 950 ℃, be incubated 6 hours; Then isothermal quenching 2.2 hours in salt made from earth containing a comparatively high percentage of sodium chloride is bathed, salt made from earth containing a comparatively high percentage of sodium chloride bath temperature is 300 ℃, takes out for naturally cooling tap water flushing 3 times.
Embodiment tri-:
A low chromium ball lining board of grinder, is characterized in that, comprises the chemical composition of following weight percent: C1.05%, Si0.30%, and Mn16%, Cr1.50%, Ni4%, RE0.30%, P0.01%, S0.01%, surplus is Fe;
The making method of described ball grinding machine lining board comprises the following steps:
(1) adopting steel scrap material is that raw material is prepared burden according to the proportioning of described ball grinding machine lining board;
(2) raw material preparing is inserted to middle frequency furnace and carry out melting, smelting temperature is 1570 ℃;
(3) alterant is placed in to ladle bottom with iron sheet or masking foil by parcel, to the molten steel processing of going bad, deterroration is 1560 ℃, and the qualified molten steel of element is carried out to thread casting at 1520 ℃ of temperature;
(4), when cast(ing) surface temperature is no more than 600 ℃, cooled ball grinding machine lining board plate is carried out to separation, fine grinding;
(5) ball grinding machine lining board after fine grinding is dropped into process furnace, be warming up to 920 ℃, be incubated 5 hours; Then isothermal quenching 2 hours in salt made from earth containing a comparatively high percentage of sodium chloride is bathed, salt made from earth containing a comparatively high percentage of sodium chloride bath temperature is 250 ℃, takes out for naturally cooling tap water flushing 1 time.
Embodiment tetra-:
A low chromium ball lining board of grinder, is characterized in that, comprises the chemical composition of following weight percent: C1.10%, Si0.70%, and Mn18%, Cr1.80%, Ni4.5%, RE0.70%, P0.03%, S0.005%, surplus is Fe;
The making method of described ball grinding machine lining board comprises the following steps:
(1) adopting steel scrap material is that raw material is prepared burden according to the proportioning of described ball grinding machine lining board;
(2) raw material preparing is inserted to middle frequency furnace and carry out melting, smelting temperature is 1560 ℃;
(3) alterant is placed in to ladle bottom with iron sheet or masking foil by parcel, to the molten steel processing of going bad, deterroration is 1560 ℃, and the qualified molten steel of element is carried out to thread casting at 1530 ℃ of temperature;
(4), when cast(ing) surface temperature is no more than 600 ℃, cooled ball grinding machine lining board plate is carried out to separation, fine grinding;
(5) ball grinding machine lining board after fine grinding is dropped into process furnace, be warming up to 920 ℃, be incubated 5 hours; Then isothermal quenching 2 hours in salt made from earth containing a comparatively high percentage of sodium chloride is bathed, salt made from earth containing a comparatively high percentage of sodium chloride bath temperature is 230 ℃, takes out for naturally cooling tap water flushing 1 time.
Embodiment five:
A low chromium ball lining board of grinder, is characterized in that, comprises the chemical composition of following weight percent: C1.15%, Si0.50%, and Mn17%, Cr2.00%, Ni5%, RE0.80%, P0.04%, S0.02%, surplus is Fe;
The making method of described ball grinding machine lining board comprises the following steps:
((1) adopts steel scrap material is that raw material is prepared burden according to the proportioning of described ball grinding machine lining board;
(2) raw material preparing is inserted to middle frequency furnace and carry out melting, smelting temperature is 1570 ℃;
(3) alterant is placed in to ladle bottom with iron sheet or masking foil by parcel, to the molten steel processing of going bad, deterroration is 1560 ℃, and the qualified molten steel of element is carried out to thread casting at 1540 ℃ of temperature;
(4), when cast(ing) surface temperature is no more than 600 ℃, cooled ball grinding machine lining board plate is carried out to separation, fine grinding;
(5) ball grinding machine lining board after fine grinding is dropped into process furnace, be warming up to 940 ℃, be incubated 5.5 hours; Then isothermal quenching 2.1 hours in salt made from earth containing a comparatively high percentage of sodium chloride is bathed, salt made from earth containing a comparatively high percentage of sodium chloride bath temperature is 270 ℃, takes out for naturally cooling tap water flushing 2 times.
The present invention compared with prior art, have the following advantages: the present invention adds appropriate rare earth, make alloy there is high, wear-resisting, the resistant to elevated temperatures characteristic of hardness, toughness is better simultaneously, shock-resistance is good, and containing precious alloy element, its structure property surpasses in the tradition that adds molybdenum, nickel, copper Chrome metal powder abrasion-proof backing block in carbon completely, production cost of the present invention is low, and work-ing life is very long.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (4)
1. a ball grinding machine lining board, is characterized in that, comprises the chemical composition of following weight percent: C1.05-1.35%, Si0.30-0.90%, Mn16-19%, Cr1.50-2.50%, Ni4-6%, RE0.30-1.00%, P≤0.06%, S≤0.04%, surplus is Fe.
2. ball grinding machine lining board according to claim 1, it is characterized in that, the chemical composition that comprises following weight percent: C1.05-1.15%, Si0.30-0.50%, Mn16-17%, Cr1.50-2.00%, Ni4-5%, RE0.30-0.80%, P≤0.04%, S≤0.02%, surplus is Fe.
3. ball grinding machine lining board according to claim 1, is characterized in that, comprises the chemical composition of following weight percent: C1.25%, Si0.75%, and Mn18%, Cr1.75%, Ni5%, RE0.85%, P0.02%, S0.01%, surplus is Fe.
4. the making method of ball grinding machine lining board according to claim 1, is characterized in that, comprises the following steps:
(1) adopting steel scrap material is that raw material is prepared burden according to the proportioning of described ball grinding machine lining board;
(2) raw material preparing is inserted to middle frequency furnace and carry out melting, smelting temperature is 1560-1580 ℃;
(3) alterant is placed in to ladle bottom with iron sheet or masking foil by parcel, to the molten steel processing of going bad, deterroration is 1550-1600 ℃, and the qualified molten steel of element is carried out to thread casting at 1500-1550 ℃ of temperature;
(4), when cast(ing) surface temperature is no more than 600 ℃, cooled ball grinding machine lining board plate is carried out to separation, fine grinding;
(5) ball grinding machine lining board after fine grinding is dropped into process furnace, be warming up to 900-950 ℃, be incubated 5-6 hours; Then isothermal quenching 2-2.2 hours in salt made from earth containing a comparatively high percentage of sodium chloride is bathed, salt made from earth containing a comparatively high percentage of sodium chloride bath temperature is 250-300 ℃, takes out for naturally cooling tap water flushing 1-3 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334462.7A CN104152815B (en) | 2014-07-14 | A kind of ball grinding machine lining board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334462.7A CN104152815B (en) | 2014-07-14 | A kind of ball grinding machine lining board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104152815A true CN104152815A (en) | 2014-11-19 |
| CN104152815B CN104152815B (en) | 2017-01-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316567A (en) * | 2015-10-28 | 2016-02-10 | 安徽省三方新材料科技有限公司 | Abrasion-resistant lining plate for cone crusher |
| CN108103275A (en) * | 2017-12-20 | 2018-06-01 | 马鞍山市盛磊耐磨合金制造有限公司 | A kind of processing method of wear-resistant liner steel alloy |
| CN108118132A (en) * | 2017-12-20 | 2018-06-05 | 马鞍山市盛磊耐磨合金制造有限公司 | A kind of processing method of HP lining plate of coal grinder |
| CN110883317A (en) * | 2019-11-25 | 2020-03-17 | 衡阳市鑫诚和重型机械设备制造有限公司 | Casting process of reinforced steel plate of hopper of mine dump truck |
| CN113278883A (en) * | 2021-04-28 | 2021-08-20 | 张选 | Rare earth wear-resistant ultrahigh manganese steel for toothed plate of double-toothed roller screening coal crusher and manufacturing method thereof |
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| SU582323A1 (en) * | 1976-04-06 | 1977-11-30 | Научно-Исследовательский Институт Прикладной Математики И Механики При Томском Госуниверситете Им. В.В.Куйбышева | Steel |
| EP0014655A1 (en) * | 1979-02-05 | 1980-08-20 | ACIERIES THOME CROMBACK Société anonyme dite: | Process for the manufacture of grinding members of an iron alloy |
| US4394168A (en) * | 1980-07-07 | 1983-07-19 | A/S Raufoss Ammunisjonsfabrikker | Austenitic wear resistant steel |
| CN101988174A (en) * | 2010-12-06 | 2011-03-23 | 宝钢集团新疆八一钢铁有限公司 | Large-scale ball mill liner and heat treatment method thereof |
| CN102383041A (en) * | 2010-09-03 | 2012-03-21 | 天津职业大学 | High wear resistant ultra-high carbon steel and preparation method for same |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU582323A1 (en) * | 1976-04-06 | 1977-11-30 | Научно-Исследовательский Институт Прикладной Математики И Механики При Томском Госуниверситете Им. В.В.Куйбышева | Steel |
| EP0014655A1 (en) * | 1979-02-05 | 1980-08-20 | ACIERIES THOME CROMBACK Société anonyme dite: | Process for the manufacture of grinding members of an iron alloy |
| US4394168A (en) * | 1980-07-07 | 1983-07-19 | A/S Raufoss Ammunisjonsfabrikker | Austenitic wear resistant steel |
| CN102383041A (en) * | 2010-09-03 | 2012-03-21 | 天津职业大学 | High wear resistant ultra-high carbon steel and preparation method for same |
| CN101988174A (en) * | 2010-12-06 | 2011-03-23 | 宝钢集团新疆八一钢铁有限公司 | Large-scale ball mill liner and heat treatment method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316567A (en) * | 2015-10-28 | 2016-02-10 | 安徽省三方新材料科技有限公司 | Abrasion-resistant lining plate for cone crusher |
| CN108103275A (en) * | 2017-12-20 | 2018-06-01 | 马鞍山市盛磊耐磨合金制造有限公司 | A kind of processing method of wear-resistant liner steel alloy |
| CN108118132A (en) * | 2017-12-20 | 2018-06-05 | 马鞍山市盛磊耐磨合金制造有限公司 | A kind of processing method of HP lining plate of coal grinder |
| CN108103275B (en) * | 2017-12-20 | 2019-07-30 | 马鞍山市盛磊耐磨合金制造有限公司 | A kind of processing method of wear-resistant liner steel alloy |
| CN108118132B (en) * | 2017-12-20 | 2019-07-30 | 马鞍山市盛磊耐磨合金制造有限公司 | A kind of processing method of HP lining plate of coal grinder |
| CN110883317A (en) * | 2019-11-25 | 2020-03-17 | 衡阳市鑫诚和重型机械设备制造有限公司 | Casting process of reinforced steel plate of hopper of mine dump truck |
| CN113278883A (en) * | 2021-04-28 | 2021-08-20 | 张选 | Rare earth wear-resistant ultrahigh manganese steel for toothed plate of double-toothed roller screening coal crusher and manufacturing method thereof |
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Inventor after: Yang Ming Inventor after: Li Hecheng Inventor before: Yang Ming |
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Effective date of registration: 20160930 Address after: 242300 Anhui economic and Technological Development Zone, Ningguo, Wang Wang Park S104 Road on the eastern side of the road on the south side of Industrial Road, No. two Applicant after: ANHUI SANFANG NEW MATERIAL TECHNOLOGY CO., LTD. Address before: 242300, Anhui province Xuancheng city Ningguo River Lek office pay Bay Applicant before: Anhui Sanfang Cast Grinding Materials Co., Ltd. |
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