CN107699785A - A kind of tough high-chromium cast abrasion-proof steel ball - Google Patents
A kind of tough high-chromium cast abrasion-proof steel ball Download PDFInfo
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- CN107699785A CN107699785A CN201710898719.5A CN201710898719A CN107699785A CN 107699785 A CN107699785 A CN 107699785A CN 201710898719 A CN201710898719 A CN 201710898719A CN 107699785 A CN107699785 A CN 107699785A
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- Prior art keywords
- steel ball
- proof steel
- chromium cast
- content
- abrasion
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/20—Disintegrating members
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
-
- C—CHEMISTRY; METALLURGY
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
Abstract
The invention discloses a kind of tough high-chromium cast abrasion-proof steel ball, the percetage by weight of its each component are as follows：Cr：10 14%, C：3.2 3.6%, Si：2.2 2.6%, Mn：3.0 4.0%, Cu：0.8 1.0%, Mo：0.3 0.5%, Re：0.1 0.15%, V：0.01 0.03%, Ti：0.010 0.015%, W：0.045 0.080%, Ta：0.05 0.15%, Nb：0.05 0.06%, S ＜ 0.03%, P ＜ 0.1%, surplus are Fe and inevitable impurity.The abrasion-proof steel ball of the present invention has excellent toughness and anti-wear performance, and intensity is high, service life length.
Description
Technical field
The present invention relates to the technical field of abrasion-proof steel ball, more particularly to a kind of tough high-chromium cast abrasion-proof steel ball.
Background technology
At present, at home in the abrading-ball of cement industry application, common forged steel abrading-ball still occupies significant proportion.Ball consumption is up to
600 g ton cement, it is annual to wear away few hundred thousand tonnes of steel.Although occurs all kinds of Alloy Balls In Millings such as chromium, manganese, ton water in recent years
Mud consumption ball index has larger gap compared with developed country.It is believed that the preferable chromium alloy abrading-ball of wearability actually should
In, there is considerable part ball consumption to be higher than national building standard, and chip index is higher, therefore need a kind of tough high chromium casting of design badly
Abrasion-proof steel ball is made to solve the problems of the prior art
The content of the invention
To solve technical problem present in background technology, the present invention proposes a kind of tough high-chromium cast abrasion-proof steel ball.
A kind of tough high-chromium cast abrasion-proof steel ball proposed by the present invention, the percetage by weight of its each component are as follows：Cr：10-
14%, C：3.2-3.6%, Si：2.2-2.6%, Mn：3.0-4.0%, Cu：0.8-1.0%, Mo：0.3-0.5%, Re：0.1-
0.15%, V：0.01-0.03%, Ti：0.010-0.015%, W：0.045-0.080%, Ta：0.05-0.15%, Nb：0.05-
0.06%, S ＜ 0.03%, P ＜ 0.1%, surplus are Fe and inevitable impurity.
Preferably, the ratio between Mn content and Cr content meet 0.21 ＜ (Mn/Cr) ＜ 0.40 with weight ratio meter.
Preferably, carbon and silicon equivalent value (C+1/3Si) is 3.93-4.47%.
Preferably, Cr content adds up to the ratio between content to meet 0.80 ＜ Cr/ (Cu+Mo) ＜ with weight ratio meter with Cu and Mo
1.36。
Preferably, the ratio between Si content and Mn content meet 5.2 ＜ (Si/Mn) ＜ 6.6 with weight ratio meter.
Preferably, the percetage by weight of its each component is as follows：Cr：11-13%, C：3.3-3.5%, Si：2.3-2.5%,
Mn：3.2-3.8%, Cu：0.85-0.95%, Mo：0.35-0.45%, Re：0.11-0.14%, V：0.015-0.025%, Ti：
0.011-0.014%, W：0.050-0.075%, Ta：0.08-0.12%, Nb：0.052-0.058%, S ＜ 0.02%, P ＜
0.08%, surplus is Fe and inevitable impurity.
Preferably, the percetage by weight of its each component is as follows：Cr：12%, C：3.4%, Si：2.4%, Mn：3.5%, Cu：
0.9%, Mo：0.4%, Re：0.125%, V：0.02%, Ti：0.0125%, W：0.04225%, Ta：0.10%, Nb：
0.055%, S：0.028%, P：0.08%, surplus is Fe and inevitable impurity.
The preparation method of the present invention, comprises the following steps：
S1, by iron block, carbon dust, silica flour, manganese block, chromium ingot, copper billet, molybdenum ingot, vanadium ingot, titanium valve, tungsten block, tantalum block, niobium block, phosphorus powder
Melting is carried out with sulphur powder, aluminium alloy is obtained, refining desulfuration, deoxidation, cast, after cast shaping, cleaning, obtains casting；
S2, by the casting obtained in S1 950 DEG C -1050 DEG C preheating 35-45min, then again quickly heating 40-45min,
2-3 hours are incubated, precooling treatment are then carried out in clear water, the time of precooling treatment is 3-4min, and the temperature of clear water is 37-42
℃；
S3, precooling in S2 is terminated after casting be placed on NaNO2Saline solution in carry out Quenching Treatment, hardening heat is
760-780 DEG C, the cool time is 4-7 minutes, the casting after quenching is warming up into 180-210 DEG C of progress temper, during tempering
Between be 5-6 hours, obtain tough high-chromium cast abrasion-proof steel ball after being then cooled to room temperature.
Carbon：In low-chromium cast-iron, phosphorus content increase, eutectic carbide increases, and is in net distribution, though it can improve wear-resisting
Property, but toughness deficiency, phosphorus content should be 3.2-3.6%.
Silicon：Increase silicone content can promote matrix hardness to increase, and be advantageous to improve carbide decentralization.But stone is promoted simultaneously
Mo Hua, the too high fragility trend for also making white cast-iron of silicon content is adversely affected to quenching degree, and to increase the content in white iron unsuitable
Too high, it is 2.2-2.6% to control its content.
Manganese：Suitable control manganese content can improve hardness of cast form, impact flexibility in low-chromium cast-iron.Its manganese content is controlled to be
3.0-4.0%.
Chromium：It makes carbide switch to alloyed cementite (FeCr)3C, carbide microhardness is improved, improve wearability.
It is 10-14% to control its chromium content.
Copper：Not cupric in base iron, if but appropriate copper is added in Cast-iron Ball, the distribution of carbide will be improved, improved
Hardness of cast form and impact flexibility, and cast ball center portion and case hardness is substantially achieved unanimously, therefore added in the determination of composition
0.8-1.0% copper.
Molybdenum：Molybdenum can significantly improve the quenching degree of alloyed white iron, and molybdenum can be dissolved in ferrite and improve hardness, make pearlite
Sorbitizing, in addition, assigning carbide with toughness, molybdenum element is added in the form of molybdenum-iron, it is contemplated that and the price of molybdenum is higher at present,
The addition of molybdenum is 0.3-0.5%.
Rare earth：After rare earth inoculation, as-cast structure can be refined, improve distribution of carbides state, improve punching
Toughness is hit, increases wearability, it is 0.1-0.15% to control its content of rare earth.
V element, titanium elements, wolfram element, thallium element and niobium element belong to trace element in abrasion-proof steel ball, these yuan
Element can combine to form high melting compound with carbon, nitrogen, and they can be used as external nucleus crystal grain thinning, improve intensity and toughness.
Their hardness is more than M3C-type carbide, be advantageous to improve the wearability of material.Meanwhile these element solid solutions can prolong in matrix
Slow austenite is advantageous to improve the quenching degree of material to perlitic transformation.
Component progress reasonable selection of the invention by tough high-chromium cast abrasion-proof steel ball, carbon and silicon equivalent value is controlled,
It ensure that the high rigidity and high impact toughness energy of the tough high-chromium cast abrasion-proof steel ball of the present invention.The proportioning of manganese and cadmium is controlled, is made
Manganese is obtained on the premise of cadmium element, control is within the specific limits, it is ensured that on the premise of abrasion-proof steel ball of the present invention has high rigidity, together
When there is excellent toughness.The proportioning of silicon and manganese is controlled, makes element silicon on the premise of manganese element, controls in certain model
In enclosing, it is ensured that on the premise of there is excellent toughness, there is high rigidity.Chromium and total content of copper, molybdenum element is controlled to match,
Ensure total content of copper, molybdenum element certain containing under the premise of measuring, the content control of chromium is within the specific limits, it is ensured that this
The abrasion-proof steel ball of invention has excellent anti-wear performance.
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
It is bright, rather than for limiting the invention, any modification made on the basis of the present invention, equivalent substitution etc. are in this hair
In bright protection domain.
Embodiment 1
A kind of tough high-chromium cast abrasion-proof steel ball proposed by the present invention, the percetage by weight of its each component are as follows：Cr：
12%, C：3.4%, Si：2.4%, Mn：3.5%, Cu：0.9%, Mo：0.4%, Re：0.125%, V：0.02%, Ti：
0.0125%, W：0.04225%, Ta：0.10%, Nb：0.055%, S：0.028%, P：0.08%, surplus is Fe and can not kept away
The impurity exempted from.
Carbon and silicon equivalent value (C+1/3Si) is 4.2%.
Embodiment 2
A kind of tough high-chromium cast abrasion-proof steel ball proposed by the present invention, the percetage by weight of its each component are as follows：Cr：
10%, C：3.6%, Si：2.2%, Mn：4.0%, Cu：0.8%, Mo：0.5%, Re：0.1%, V：0.03%, Ti：
0.010%, W：0.080%, Ta：0.05%, Nb：0.06%, S：0.02%, P：0.08%, surplus is for Fe and inevitably
Impurity.
Carbon and silicon equivalent value (C+1/3Si) is 4.33%.
Embodiment 3
A kind of tough high-chromium cast abrasion-proof steel ball proposed by the present invention, the percetage by weight of its each component are as follows：Cr：
14%, C：3.2%, Si：2.6%, Mn：3.0%, Cu：1.0%, Mo：0.3%, Re：0.15%, V：0.01%, Ti：
0.015%, W：0.045%, Ta：0.15%, Nb：0.05%, S：0.02%, P：0.05%, surplus is for Fe and inevitably
Impurity.
Carbon and silicon equivalent value (C+1/3Si) is 4.07%.
Embodiment 4
A kind of tough high-chromium cast abrasion-proof steel ball proposed by the present invention, the percetage by weight of its each component are as follows：Cr：
11%, C：3.5%, Si：2.3%, Mn：3.8%, Cu：0.85%, Mo：0.45%, Re：0.11%, V：0.025%, Ti：
0.011%, W：0.075%, Ta：0.08%, Nb：0.058%, S：0.01%, P：0.07%, surplus is for Fe and inevitably
Impurity.
Carbon and silicon equivalent value (C+1/3Si) is 4.27%.
Embodiment 5
A kind of tough high-chromium cast abrasion-proof steel ball proposed by the present invention, the percetage by weight of its each component are as follows：Cr：
13%, C：3.3%, Si：2.5%, Mn：3.2%, Cu：0.95%, Mo：0.35%, Re：0.14%, V：0.015%, Ti：
0.014%, W：0.050%, Ta：0.12%, Nb：0.052%, S：0.01%, P：0.06%, surplus is for Fe and inevitably
Impurity.
Carbon and silicon equivalent value (C+1/3Si) is 4.13%.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (7)
1. a kind of tough high-chromium cast abrasion-proof steel ball, it is characterised in that the percetage by weight of its each component is as follows：Cr：10-
14%, C：3.2-3.6%, Si：2.2-2.6%, Mn：3.0-4.0%, Cu：0.8-1.0%, Mo：0.3-0.5%, Re：0.1-
0.15%, V：0.01-0.03%, Ti：0.010-0.015%, W：0.045-0.080%, Ta：0.05-0.15%, Nb：0.05-
0.06%, S ＜ 0.03%, P ＜ 0.1%, surplus are Fe and inevitable impurity.
2. tough high-chromium cast abrasion-proof steel ball according to claim 1, it is characterised in that Mn content and Cr content it
Than with weight ratio meter, meeting 0.21 ＜ (Mn/Cr) ＜ 0.40.
3. tough high-chromium cast abrasion-proof steel ball according to claim 1 or 2, it is characterised in that carbon and silicon equivalent value (C+1/
3Si) it is 3.93-4.47%.
4. the tough high-chromium cast abrasion-proof steel ball according to claim any one of 1-3, it is characterised in that Cr content and Cu
The ratio between content is added up to meet 0.80 ＜ Cr/ (Cu+Mo) ＜ 1.36 with weight ratio meter with Mo.
5. the tough high-chromium cast abrasion-proof steel ball according to claim any one of 1-4, it is characterised in that Si content and Mn
The ratio between content with weight ratio meter, meet 5.2 ＜ (Si/Mn) ＜ 6.6.
6. the tough high-chromium cast abrasion-proof steel ball according to claim any one of 1-5, it is characterised in that the weight of its each component
It is as follows to measure percentage：Cr：10-14%, C：3.3-3.5%, Si：2.3-2.5%, Mn：3.2-3.8%, Cu：0.85-0.95%,
Mo：0.35-0.45%, Re：0.11-0.14%, V：0.015-0.025%, Ti：0.011-0.014%, W：0.050-
0.075%, Ta：0.08-0.12%, Nb：0.052-0.058%, S ＜ 0.02%, P ＜ 0.08%, surplus are Fe and can not kept away
The impurity exempted from.
7. the tough high-chromium cast abrasion-proof steel ball according to claim any one of 1-6, it is characterised in that the weight of its each component
It is as follows to measure percentage：Cr：12%, C：3.4%, Si：2.4%, Mn：3.5%, Cu：0.9%, Mo：0.4%, Re：0.125%,
V：0.02%, Ti：0.0125%, W：0.04225%, Ta：0.10%, Nb：0.055%, S：0.028%, P：0.08%, surplus
For Fe and inevitable impurity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710898719.5A CN107699785A (en) | 2017-09-28 | 2017-09-28 | A kind of tough high-chromium cast abrasion-proof steel ball |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710898719.5A CN107699785A (en) | 2017-09-28 | 2017-09-28 | A kind of tough high-chromium cast abrasion-proof steel ball |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106434A (en) * | 2019-04-30 | 2019-08-09 | 徐州天太机械制造有限公司 | A kind of wear resistant cast iron steel ball and preparation method thereof |
| CN111926241A (en) * | 2020-08-11 | 2020-11-13 | 东营嘉洲工业科技有限公司 | Method for manufacturing multi-element composite reinforced grinding ball and grinding ball gradation |
| CN113897537A (en) * | 2021-08-24 | 2022-01-07 | 安徽新马铸造科技有限公司 | Wear-resistant steel ball with long service life and casting process thereof |
| CN114959437A (en) * | 2022-05-31 | 2022-08-30 | 广东省科学院新材料研究所 | Vanadium alloyed high-chromium cast iron and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1100150A (en) * | 1993-09-09 | 1995-03-15 | 株洲市机械工业研究所 | Impact fatigue-resistant wear-proof alloy cast iron |
| CN106868411A (en) * | 2016-12-27 | 2017-06-20 | 芜湖倍思科创园有限公司 | A kind of low chromium abrasion-proof steel ball of high rigidity high impact toughness and preparation method thereof |
-
2017
- 2017-09-28 CN CN201710898719.5A patent/CN107699785A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1100150A (en) * | 1993-09-09 | 1995-03-15 | 株洲市机械工业研究所 | Impact fatigue-resistant wear-proof alloy cast iron |
| CN106868411A (en) * | 2016-12-27 | 2017-06-20 | 芜湖倍思科创园有限公司 | A kind of low chromium abrasion-proof steel ball of high rigidity high impact toughness and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106434A (en) * | 2019-04-30 | 2019-08-09 | 徐州天太机械制造有限公司 | A kind of wear resistant cast iron steel ball and preparation method thereof |
| CN111926241A (en) * | 2020-08-11 | 2020-11-13 | 东营嘉洲工业科技有限公司 | Method for manufacturing multi-element composite reinforced grinding ball and grinding ball gradation |
| CN111926241B (en) * | 2020-08-11 | 2022-03-01 | 东营嘉洲工业科技有限公司 | Method for manufacturing multi-element composite reinforced grinding ball and grinding ball gradation |
| CN113897537A (en) * | 2021-08-24 | 2022-01-07 | 安徽新马铸造科技有限公司 | Wear-resistant steel ball with long service life and casting process thereof |
| CN114959437A (en) * | 2022-05-31 | 2022-08-30 | 广东省科学院新材料研究所 | Vanadium alloyed high-chromium cast iron and preparation method and application thereof |
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