CN106834897A - Cadmium abrasion-proof steel ball and preparation method thereof in a kind of high rigidity low-carbon (LC) - Google Patents
Cadmium abrasion-proof steel ball and preparation method thereof in a kind of high rigidity low-carbon (LC) Download PDFInfo
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- CN106834897A CN106834897A CN201611226324.2A CN201611226324A CN106834897A CN 106834897 A CN106834897 A CN 106834897A CN 201611226324 A CN201611226324 A CN 201611226324A CN 106834897 A CN106834897 A CN 106834897A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
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- 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
- C21D5/00—Heat treatments of cast-iron
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
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- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- 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
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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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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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
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
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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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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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
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
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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
- C22C38/36—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon
Abstract
The invention discloses cadmium abrasion-proof steel ball in a kind of high rigidity low-carbon (LC), the percetage by weight of its each component is as follows：C：1.9 2.8%, Si：1.4 2.9%, Mn：0.6 0.8%, Cr：3.6 5.4%, Cu：0.6 1.2%, Mo：0.1 0.3%, Re：0.1 0.3%, S ＜ 0.04%, P ＜ 0.04%, balance of Fe and inevitable impurity.The invention also discloses the preparation method of cadmium abrasion-proof steel ball in a kind of above-mentioned high rigidity low-carbon (LC).The low chromium abrasion-proof steel ball hardness that the present invention is prepared is high, and impact flexibility is good.
Description
Technical field
The present invention relates to cadmium abrasion-proof steel ball and its preparation in abrasion-proof steel ball technical field, more particularly to a kind of high rigidity low-carbon (LC)
Method.
Background technology
In thermal power plant, the use of low speed coal mill is very universal, but liner plate is one with the abrasion of steel ball all the time
Individual more prominent problem.Because lining plate replacing is difficult, so the life-span of liner plate is improved, the economic benefit to improving thermal power plant
It is particularly important.Influence the factor of liner plate service life a lot, wherein material is the most important factor for influenceing liner plate service life.
The hardness and impact flexibility of abrasion-proof steel ball of the prior art cannot meet actual demand.
The content of the invention
To solve technical problem present in background technology, the present invention propose in a kind of high rigidity low-carbon (LC) cadmium abrasion-proof steel ball and
Its preparation method.The low chromium abrasion-proof steel ball hardness for preparing is high, and impact flexibility is good.
Cadmium abrasion-proof steel ball in a kind of high rigidity low-carbon (LC) proposed by the present invention, the percetage by weight of its each component is as follows：C：
1.9-2.8%, Si：1.4-2.9%, Mn：0.6-0.8%, Cr：3.6-5.4%, Cu：0.6-1.2%, Mo：0.1-0.3%,
Re：0.1-0.3%, S ＜ 0.04%, P ＜ 0.04%, balance of Fe and inevitable impurity.
Preferably, carbon and silicon equivalent value (C+1/3Si) is 2.4-3.8%.
Preferably, the ratio between content of the content of Mn and Cr meets 0.11 ＜ (Mn/Cr) ＜ 0.22 with weight ratio meter.
Preferably, the ratio between content of the content of Si and Mn meets 1.75 ＜ (Si/Mn) ＜ 4.83 with weight ratio meter.
Preferably, the content of Cr adds up to the ratio between content with weight ratio meter with Cu, Mn and Mo, meets 0.80 ＜ Cr/ (Cu+Mn+
Mo) ＜ 1.36.
Preferably, the percetage by weight of its each component is as follows：C：2.0-2.7%, Si：1.5-2.8%, Mn：0.65-
0.75%, Cr：3.8-5.2%, Cu：0.8-1.0%, Mo：0.15-0.25%, Re：0.15-0.25%, S ＜ 0.03%, P ＜
0.03%, balance of Fe and inevitable impurity.
Preferably, the percetage by weight of its each component is as follows：C：2.35%, Si：2.15%, Mn：0.7%, Cr：4.5%,
Cu：0.9%, Mo：0.2%, Re：0.2%, S:0.01%, P:0.01%, balance of Fe and inevitable impurity.
The preparation method of cadmium abrasion-proof steel ball, comprises the following steps in a kind of high rigidity low-carbon (LC) of the invention：
S1, melting：The pig iron, steel scrap, ferrochrome, molybdenum-iron, ferromanganese, cathode copper and ferrosilicon are put into smelting furnace are successively melted
Refining, forehearth interpolation aluminium deoxidation of coming out of the stove, RE-treated in bag, tapping temperature is 1500-1600 DEG C, obtains aluminium alloy, is then carried out
Detection, aluminium alloy includes following component by weight percentage：C：1.9-2.8%, Si：1.4-2.9%, Mn：0.6-0.8%, Cr：
3.6-5.4%, Cu：0.6-1.2%, Mo：0.1-0.3%, Re：0.1-0.3%, S ＜ 0.04%, P ＜ 0.04%, balance of Fe
With inevitable impurity；
S2, casting：Poured into a mould aluminium alloy is obtained in S2, wooden model scaling factor uses 1-3%, using waterglass quartz sand
Moulding is carried out, carbon dioxide is dried up, and pouring temperature is 1400-1500 DEG C, during cast, wrap interior plant ash and remove slag, cast terminates
3-5h is incubated after 650-850 DEG C, is unpacked and is cooled to room temperature and obtains casting；
S3, heat treatment：The casting that will be obtained in S2 is heat-treated, and heat treatment is specifically included：Casting is warming up to 910-
930 DEG C, 4-6h is incubated, it is then air-cooled to room temperature, 210-290 DEG C is then warming up to, 5-7h is incubated, it is air cooled to room temperature and obtains high hard
Cadmium abrasion-proof steel ball in degree low-carbon (LC).
Carbon：Carbon is the dominant element that properties are influenceed in steel, and carbon content increases within the specific limits, intensity, hardness and
Wearability is improved, and toughness declines.It is to ensure steel while with certain toughness, and with hardness higher and good resistance to
Mill property, determines that carbon content is 1.9-2.8%.
Silicon：There is significant solution strengthening effect, and steel belt roof bolt brittleness temperature is shifted to high temperature, this just makes steel belt roof bolt temperature
Degree is improved, and obtains toughness higher.Determine that silicone content is 1.4-2.9%.
Chromium:The addition of chromium mainly serves following：Solution strengthening matrix simultaneously improves the quenching degree of steel；Combined with carbon, formed
The high rigidity carbide of Dispersed precipitate；Improve steel belt roof bolt stability.Determine that chromium content is 3.6-5.4%.
Manganese:Manganese can improve quenching degree and intensity in steel, dramatically increase remained austenite content, and increase the overheat tendency of steel
It is inclined to increase temper brittleness.Determine that manganese content is 0.6-0.8%.
In addition appropriate Cu, Mo and Re is added.
Rationally the content of control carbon and element silicon, determines the control of carbon and silicon equivalent value in 2.4-3.8%, it is ensured that book is sent out
Bright wear-resistant ball hardness is high, good toughness.Rationally the content of control manganese element and chromium is matched so that in certain chromium content
On the premise of, within the specific limits, chromium has stronger carbide Forming ability, when the content of carbon for the content control of manganese element
Control can form hardness M higher in 1.9-2.8%7C3Type carbide occurs, while the continuous solid solution formed with iron, in Austria
Solubility in family name's body is very big, therefore can strengthen matrix, improves the intensity and hardness of matrix without reducing toughness.Silicon has good
Deoxidizing capacity, can effectively improve quenching degree, and rationally control carbon and silicon equivalent value can effectively improve the hardness of abrasion-proof steel ball and tough
Property.The proportioning of manganese element and chromium is rationally controlled, manganese is not only good deoxidier or good desulfurizing agent, manganese addition
Crossing conference causes crystal grain to increase, and makes manganese content in certain chromium containing under the premise of measuring, and controls in certain limit so that abrasion-resistant stee
Ball can be on the premise of high rigidity, with excellent toughness.Rationally the proportioning of control element silicon and manganese element, controls element silicon
Under the premise of certain manganese element, within the specific limits, the excellent toughness of abrasion-proof steel ball of the present invention is imparted.The addition of rare earth, energy
Enough effective desulfurization and removal oxygen, can remove the objectionable impurities in steel, improve the quality of steel, significantly improve the plasticity of steel and tough
Property.
The hardness of cadmium abrasion-proof steel ball and toughness matching are reasonable in high rigidity low-carbon (LC) of the invention, and Technology for Heating Processing is simple, makes
With long lifespan, mechanical property is HRC >=50, Tk >=15J/cm2。
Specific embodiment
The present invention is described in detail with reference to specific embodiment, it should be appreciated that embodiment is served only for illustrating this hair
Bright, rather than for limiting the invention, any modification made on the basis of the present invention, equivalent etc. are in this hair
In bright protection domain.
Embodiment 1
Cadmium abrasion-proof steel ball in a kind of high rigidity low-carbon (LC) proposed by the present invention, the percetage by weight of its each component is as follows：C：
2.35%, Si：2.15%, Mn：0.7%, Cr：4.5%, Cu：0.9%, Mo：0.2%, Re：0.2%, S:0.01%, P:
0.01%, balance of Fe and inevitable impurity.
Embodiment 2
The preparation method of cadmium abrasion-proof steel ball, comprises the following steps in a kind of high rigidity low-carbon (LC) of the invention：
S1, melting：The pig iron, steel scrap, ferrochrome, molybdenum-iron, ferromanganese, cathode copper and ferrosilicon are put into smelting furnace are successively melted
Refining, forehearth interpolation aluminium deoxidation of coming out of the stove, RE-treated in bag, tapping temperature is 1500 DEG C, obtains aluminium alloy, is then detected,
Aluminium alloy includes following component by weight percentage：C：1.9%, Si：2.9%, Mn：0.6%, Cr：5.4%, Cu：0.6%,
Mo：0.3%, Re：0.1%, S：0.03%, P:0.02%, balance of Fe and inevitable impurity；
S2, casting：Poured into a mould aluminium alloy is obtained in S2, wooden model scaling factor uses 1%, entered using waterglass quartz sand
Row moulding, carbon dioxide drying, pouring temperature is 1500 DEG C, during cast, wraps interior plant ash and removes slag, and cast terminates after 650
DEG C insulation 5h, unpacks and is cooled to room temperature and obtains casting；
S3, heat treatment：The casting that will be obtained in S2 is heat-treated, and heat treatment is specifically included：Casting is warming up to 910
DEG C, 6h is incubated, it is then air-cooled to room temperature, 210 DEG C are then warming up to, 7h is incubated, it is air cooled to room temperature and obtains cadmium in high rigidity low-carbon (LC)
Abrasion-proof steel ball.
Embodiment 3
The preparation method of cadmium abrasion-proof steel ball, comprises the following steps in a kind of high rigidity low-carbon (LC) of the invention：
S1, melting：The pig iron, steel scrap, ferrochrome, molybdenum-iron, ferromanganese, cathode copper and ferrosilicon are put into smelting furnace are successively melted
Refining, forehearth interpolation aluminium deoxidation of coming out of the stove, RE-treated in bag, tapping temperature is 1600 DEG C, obtains aluminium alloy, is then detected,
Aluminium alloy includes following component by weight percentage：C：2.8%, Si：1.4%, Mn：0.8%, Cr：3.6%, Cu：1.2%,
Mo：0.1%, Re：0.3%, S：0.02%, P:0.02%, balance of Fe and inevitable impurity；
S2, casting：Poured into a mould aluminium alloy is obtained in S2, wooden model scaling factor uses 3%, entered using waterglass quartz sand
Row moulding, carbon dioxide drying, pouring temperature is 1400 DEG C, during cast, wraps interior plant ash and removes slag, and cast terminates after 850
DEG C insulation 3h, unpacks and is cooled to room temperature and obtains casting；
S3, heat treatment：The casting that will be obtained in S2 is heat-treated, and heat treatment is specifically included：Casting is warming up to 930
DEG C, 4h is incubated, it is then air-cooled to room temperature, 290 DEG C are then warming up to, 5h is incubated, it is air cooled to room temperature and obtains cadmium in high rigidity low-carbon (LC)
Abrasion-proof steel ball.
Embodiment 4
The preparation method of cadmium abrasion-proof steel ball, comprises the following steps in a kind of high rigidity low-carbon (LC) of the invention：
S1, melting：The pig iron, steel scrap, ferrochrome, molybdenum-iron, ferromanganese, cathode copper and ferrosilicon are put into smelting furnace are successively melted
Refining, forehearth interpolation aluminium deoxidation of coming out of the stove, RE-treated in bag, tapping temperature is 1520 DEG C, obtains aluminium alloy, is then detected,
Aluminium alloy includes following component by weight percentage：C：2.0%, Si：2.8%, Mn：0.65%, Cr：5.2%, Cu：0.8%,
Mo：0.25%, Re：0.15%, S：0.01%, P:0.01%, balance of Fe and inevitable impurity；
S2, casting：Poured into a mould aluminium alloy is obtained in S2, wooden model scaling factor uses 1.5%, using waterglass quartz sand
Carry out moulding, carbon dioxide drying, pouring temperature is 1480 DEG C, during cast, wraps interior plant ash and removes slag, cast end after
680 DEG C of insulation 4.5h, unpack and are cooled to room temperature and obtain casting；
S3, heat treatment：The casting that will be obtained in S2 is heat-treated, and heat treatment is specifically included：Casting is warming up to 915
DEG C, 5.5h is incubated, it is then air-cooled to room temperature, 215 DEG C are then warming up to, 6.5h is incubated, it is air cooled to room temperature and obtains high rigidity low-carbon (LC)
Middle cadmium abrasion-proof steel ball.
Embodiment 5
The preparation method of cadmium abrasion-proof steel ball, comprises the following steps in a kind of high rigidity low-carbon (LC) of the invention：
S1, melting：The pig iron, steel scrap, ferrochrome, molybdenum-iron, ferromanganese, cathode copper and ferrosilicon are put into smelting furnace are successively melted
Refining, forehearth interpolation aluminium deoxidation of coming out of the stove, RE-treated in bag, tapping temperature is 1580 DEG C, obtains aluminium alloy, is then detected,
Aluminium alloy includes following component by weight percentage：C：2.7%, Si：1.5%, Mn：0.75%, Cr：3.8%, Cu：1.0%,
Mo：0.15%, Re：0.25%, S：0.02%, P:0.01%, balance of Fe and inevitable impurity；
S2, casting：Poured into a mould aluminium alloy is obtained in S2, wooden model scaling factor uses 2.5%, using waterglass quartz sand
Carry out moulding, carbon dioxide drying, pouring temperature is 1420 DEG C, during cast, wraps interior plant ash and removes slag, cast end after
820 DEG C of insulation 3.5h, unpack and are cooled to room temperature and obtain casting；
S3, heat treatment：The casting that will be obtained in S2 is heat-treated, and heat treatment is specifically included：Casting is warming up to 925
DEG C, 4.5h is incubated, it is then air-cooled to room temperature, 285 DEG C are then warming up to, 5.5h is incubated, it is air cooled to room temperature and obtains high rigidity low-carbon (LC)
Middle cadmium abrasion-proof steel ball.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (8)
1. cadmium abrasion-proof steel ball in a kind of high rigidity low-carbon (LC), it is characterised in that the percetage by weight of its each component is as follows：C：1.9-
2.8%, Si：1.4-2.9%, Mn：0.6-0.8%, Cr：3.6-5.4%, Cu：0.6-1.2%, Mo：0.1-0.3%, Re：
0.1-0.3%, S ＜ 0.04%, P ＜ 0.04%, balance of Fe and inevitable impurity.
2. cadmium abrasion-proof steel ball in high rigidity low-carbon (LC) according to claim 1, it is characterised in that carbon and silicon equivalent value (C+1/
3Si) it is 2.4-3.8%.
3. cadmium abrasion-proof steel ball in high rigidity low-carbon (LC) according to claim 1 and 2, it is characterised in that the content of Mn is with Cr's
The ratio between content meets 0.11 ＜ (Mn/Cr) ＜ 0.22 with weight ratio meter.
4. cadmium abrasion-proof steel ball in the high rigidity low-carbon (LC) according to claim any one of 1-3, it is characterised in that the content of Si with
The ratio between content of Mn meets 1.75 ＜ (Si/Mn) ＜ 4.83 with weight ratio meter.
5. cadmium abrasion-proof steel ball in the high rigidity low-carbon (LC) according to claim any one of 1-4, it is characterised in that the content of Cr with
The ratio between total content of Cu, Mn and Mo meets 0.80 ＜ Cr/ (Cu+Mn+Mo) ＜ 1.36 with weight ratio meter.
6. cadmium abrasion-proof steel ball in the high rigidity low-carbon (LC) according to claim any one of 1-5, it is characterised in that its each component
Percetage by weight is as follows：C：2.0-2.7%, Si：1.5-2.8%, Mn：0.65-0.75%, Cr：3.8-5.2%, Cu：0.8-
1.0%, Mo：0.15-0.25%, Re：0.15-0.25%, S ＜ 0.03%, P ＜ 0.03%, balance of Fe and inevitably
Impurity.
7. cadmium abrasion-proof steel ball in the high rigidity low-carbon (LC) according to claim any one of 1-6, it is characterised in that its each component
Percetage by weight is as follows：C：2.35%, Si：2.15%, Mn：0.7%, Cr：4.5%, Cu：0.9%, Mo：0.2%, Re：
0.2%, S:0.01%, P:0.01%, balance of Fe and inevitable impurity.
8. in a kind of high rigidity low-carbon (LC) according to claim any one of 1-7 cadmium abrasion-proof steel ball preparation method, its feature
It is to comprise the following steps：
S1, melting：The pig iron, steel scrap, ferrochrome, molybdenum-iron, ferromanganese, cathode copper and ferrosilicon are put into smelting furnace successively carry out melting,
Come out of the stove forehearth interpolation aluminium deoxidation, RE-treated in bag, tapping temperature is 1500-1600 DEG C, obtains aluminium alloy, is then examined
Survey, aluminium alloy includes following component by weight percentage：C：1.9-2.8%, Si：1.4-2.9%, Mn：0.6-0.8%, Cr：
3.6-5.4%, Cu：0.6-1.2%, Mo：0.1-0.3%, Re：0.1-0.3%, S ＜ 0.04%, P ＜ 0.04%, balance of Fe
With inevitable impurity；
S2, casting：Poured into a mould aluminium alloy is obtained in S2, wooden model scaling factor uses 1-3%, carried out using waterglass quartz sand
Moulding, carbon dioxide drying, pouring temperature is 1400-1500 DEG C, during cast, wraps interior plant ash and removes slag, cast end after
650-850 DEG C of insulation 3-5h, unpacks and is cooled to room temperature and obtains casting；
S3, heat treatment：The casting that will be obtained in S2 is heat-treated, and heat treatment is specifically included：Casting is warming up to 910-930
DEG C, 4-6h is incubated, it is then air-cooled to room temperature, 210-290 DEG C is then warming up to, 5-7h is incubated, it is air cooled to room temperature and obtains high rigidity
Cadmium abrasion-proof steel ball in low-carbon (LC).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965522A (en) * | 2017-11-27 | 2018-04-27 | 宁波恒力汽配轴承有限公司 | A kind of bearing and its preparation process |
| CN113881890A (en) * | 2021-08-24 | 2022-01-04 | 安徽新马铸造科技有限公司 | High-toughness wear-resistant steel ball and casting process thereof |
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|---|---|---|---|---|
| CN1180758A (en) * | 1997-06-06 | 1998-05-06 | 马志和 | Troostite metal grinding ball and preparation method thereof |
| CN103060667A (en) * | 2013-01-05 | 2013-04-24 | 宁国市中意耐磨材料有限公司 | Super-hard middle-chrome cast grinding ball and production process thereof |
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| CN107965522A (en) * | 2017-11-27 | 2018-04-27 | 宁波恒力汽配轴承有限公司 | A kind of bearing and its preparation process |
| CN113881890A (en) * | 2021-08-24 | 2022-01-04 | 安徽新马铸造科技有限公司 | High-toughness wear-resistant steel ball and casting process thereof |
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