CN108796351A - A kind of high-chromium alloy cast ball and preparation method thereof - Google Patents
A kind of high-chromium alloy cast ball and preparation method thereof Download PDFInfo
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- CN108796351A CN108796351A CN201810769865.2A CN201810769865A CN108796351A CN 108796351 A CN108796351 A CN 108796351A CN 201810769865 A CN201810769865 A CN 201810769865A CN 108796351 A CN108796351 A CN 108796351A
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- chromium alloy
- cast ball
- alloy cast
- preparation
- melting
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Classifications
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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
- C22C37/06—Cast-iron alloys containing chromium
- C22C37/08—Cast-iron alloys containing chromium with nickel
-
- 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
- C21D5/00—Heat treatments of cast-iron
-
- 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
- C22C37/10—Cast-iron alloys containing aluminium or silicon
Abstract
The present invention proposes a kind of high-chromium alloy cast ball and preparation method thereof, and high-chromium alloy casting has following chemical composition：C：1.6~2.3%, Si：0.4~1.12%, Mn：0.5~1.2%, Cr：10.0~13.0%, Mo：≤ 0.1%, Cu：≤ 0.1%, P：≤ 0.1%, S：≤ 0.06%, Ni：0.10~0.25%, V：0.09~0.18%, Mg：0.9~1.46%, Ti：0.06~1.20%, Zr：0.08~0.16%, surplus is Fe and inevitable impurity；High-chromium alloy cast ball hardness made from preparation method through the invention is all higher than 58, impact value is all higher than 3, ball falling impact fatigue life is more than 10000 times, the effective service life for extending cast ball is long, enhance the wear-resisting property of cast ball, the preparation process of the present invention also reduces manufacturing cost, has wide application prospect.
Description
Technical field
The present invention relates to wear-resistant material technical fields, and in particular to a kind of high-chromium alloy cast ball and preparation method thereof.
Background technology
At this stage, chromium alloy cast ball is divided into high-chromium alloy cast ball, Cast low chrome alloy balls, Cast low chrome alloy balls.High chromium closes
Golden cast ball it is obstinately relatively broad, just because of high-chromium alloy cast ball wears away low, good toughness with regard to hardness height, be crushed the features such as few, make
Main application is in cement building material, light industry papermaking, metal mine, coal slurry thermoelectricity, ceramic coating, chemical engineering, magnetic material etc.
The powder of industry is prepared and ultra-fine deep processing.There are the performance of cast ball is relatively unstable in the casting of high-chromium alloy cast ball at present
It is fixed, and the alloy content of high-chromium alloy cast ball is high, and of high cost, product hardness is low in preparation process, and impact flexibility is low, comprehensive
Mechanical performance is poor, prepares required of high cost；It is comprehensive to high-chromium alloy cast ball hardness, toughness, wear-resistant etc. in the market to meet
The requirement of mechanical performance improves each performance of evanohm cast ball and reduces its manufacturing cost, saves alloy resource, the present invention proposes
A kind of high-chromium alloy cast ball and preparation method thereof.
Invention content
In view of the above problems, the present invention proposes kind of high-chromium alloy cast ball and preparation method thereof.
In order to achieve the above purpose, the present invention uses technical solution below：
A kind of high-chromium alloy cast ball has following chemical composition：C：1.6~2.3%, Si：0.4~1.12%, Mn：0.5
~1.2%, Cr：10.0~13.0%, Mo：≤ 0.1%, Cu：≤ 0.1%, P：≤ 0.1%, S：≤ 0.06%, Ni：0.10~
0.25%, V：0.09~0.18%, Mg：0.9~1.46%, Ti：0.06~1.20%, Zr：0.08~0.16%, surplus Fe
And inevitable impurity.
Preferably, there is following chemical composition：C：1.8~2.1%, Si：0.6~1.0%, Mn：0.6~1.0%, Cr：
11.0~12.0%, Mo：≤ 0.1%, Cu：≤ 0.1%, P：≤ 0.1%, S：≤ 0.06%, Ni：0.14~0.21%, V：0.1
~0.16%, Mg：1.1~1.35%, Ti：0.08~1.1%, Zr：0.10~0.14%, surplus be Fe and inevitably it is miscellaneous
Matter.
Preferably, there is following chemical composition：C：1.9%, Si：0.81%, Mn：0.8%, Cr：11.5%, Mo：≤
0.1%, Cu：≤ 0.1%, P：≤ 0.1%, S：≤ 0.06%, Ni：0.18%, V：0.13%, Mg：1.23%, Ti：0.09%,
Zr：0.12%, surplus is Fe and inevitable impurity.
The preparation method of the high-chromium alloy cast ball, includes the following steps：
(1) melting：By melting in raw material input electric furnace, melt temperature control is 1610~1650 DEG C, is added after melting completely
Enter refining agent, skims after carrying out degasification；
(2) it pours into a mould：Alloy solution after skimming is poured into a mould at 1450~1500 DEG C；
(3) quenching heat treatment：By the casting obtained after cast at 385~400 DEG C, according to the heating speed of 2~5 DEG C/min
Rate is warming up to 490~510 DEG C, and keeps the temperature 5~8h, after water quenching to room temperature, is heated uniformly to 180~220 DEG C, keeps the temperature 2~3h,
It is air-cooled to room temperature to obtain the final product.
Preferably, the pouring temperature is 1480 DEG C.
Preferably, the heating rate is 3 DEG C/min.
Due to using above-mentioned technical solution, the beneficial effects of the invention are as follows：
(1) for the present invention by the reasonable addition between chemical composition, the high-chromium alloy cast ball prepared ensure that high-wearing feature
While have the characteristics that production cost it is low, energy consumption it is low, wherein the Ni added not only contributes to the hardenability of alloy, can also increase
The stability of high-chromium alloy cast ball part austenite ensures that quenching degree is good, and Ni and Mo are combined, and can further increase quenching degree；Addition
V be combined to VC with C under the hardening heat of the present invention, VC rotates into solid solution, improves casting hardness, improves the toughness of material
Deng；
(2) high-chromium alloy cast ball hardness made from preparation method of the invention is all higher than 58, and impact value is all higher than 3, falling sphere
Impact fatigue life is more than 10000 times, and the service life for extending cast ball is long, enhances the wear-resisting property of cast ball, of the invention
Preparation process also reduces manufacturing cost, has wide application prospect.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described.Based on the embodiment of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained without creative efforts belongs to the model that the present invention protects
It encloses.
Embodiment 1：
A kind of high-chromium alloy cast ball has following chemical composition：C：1.9%, Si：0.81%, Mn：0.8%, Cr：
11.5%, Mo：≤ 0.1%, Cu：≤ 0.1%, P：≤ 0.1%, S：≤ 0.06%, Ni：0.18%, V：0.13%, Mg：
1.23%, Ti：0.09%, Zr：0.12%, surplus is Fe and inevitable impurity.
The preparation method of above-mentioned high-chromium alloy cast ball, includes the following steps：
(1) melting：Raw material is put into melting in electric furnace, melt temperature control is 1630 DEG C, and refining is added after melting completely
Agent is skimmed after carrying out degasification；
(2) it pours into a mould：Alloy solution after skimming is poured into a mould at 1480 DEG C；
(3) quenching heat treatment：By the casting obtained after cast at 390 DEG C, according to the heating rate of 3 DEG C/min, heating
It to 500 DEG C, and keeps the temperature 7h, after water quenching to room temperature, is heated uniformly to 200 DEG C, keeps the temperature 2h, be air-cooled to room temperature to obtain the final product.
Embodiment 2：
A kind of high-chromium alloy cast ball has following chemical composition：C：1.8%, Si：1.12%, Mn：1.2%, Cr：
11.0%, Mo：≤ 0.1%, Cu：≤ 0.1%, P：≤ 0.1%, S：≤ 0.06%, Ni：0.10%, V：0.16%, Mg：
1.1%, Ti：0.06%, Zr：0.14%, surplus is Fe and inevitable impurity.
The preparation method of above-mentioned high-chromium alloy cast ball, includes the following steps：
(1) melting：Raw material is put into melting in electric furnace, melt temperature control is 1650 DEG C, and refining is added after melting completely
Agent is skimmed after carrying out degasification；
(2) it pours into a mould：Alloy solution after skimming is poured into a mould at 1500 DEG C；
(3) quenching heat treatment：By the casting obtained after cast at 385 DEG C, according to the heating rate of 5 DEG C/min, heating
It to 510 DEG C, and keeps the temperature 6h, after water quenching to room temperature, is heated uniformly to 210 DEG C, keeps the temperature 3h, be air-cooled to room temperature to obtain the final product.
Embodiment 3：
A kind of high-chromium alloy cast ball has following chemical composition：C：1.6%, Si：0.6%, Mn：0.5%, Cr：
13.0%, Mo：≤ 0.1%, Cu：≤ 0.1%, P：≤ 0.1%, S：≤ 0.06%, Ni：0.25%, V：0.18%, Mg：
1.46%, Ti：0.08%, Zr：0.10%, surplus is Fe and inevitable impurity.
The preparation method of above-mentioned high-chromium alloy cast ball, includes the following steps：
(1) melting：Raw material is put into melting in electric furnace, melt temperature control is 1620 DEG C, and refining is added after melting completely
Agent is skimmed after carrying out degasification；
(2) it pours into a mould：Alloy solution after skimming is poured into a mould at 1450 DEG C；
(3) quenching heat treatment：By the casting obtained after cast at 395 DEG C, according to the heating rate of 4 DEG C/min, heating
It to 505 DEG C, and keeps the temperature 5h, after water quenching to room temperature, is heated uniformly to 220 DEG C, keeps the temperature 3h, be air-cooled to room temperature to obtain the final product.
Embodiment 4：
A kind of high-chromium alloy cast ball has following chemical composition：C：2.1%, Si：0.4%, Mn：0.6%, Cr：120%,
Mo：≤ 0.1%, Cu：≤ 0.1%, P：≤ 0.1%, S：≤ 0.06%, Ni：0.14%, V：0.1%, Mg：0.9%, Ti：
1.20%, Zr：0.16%, surplus is Fe and inevitable impurity.
The preparation method of above-mentioned high-chromium alloy cast ball, includes the following steps：
(1) melting：Raw material is put into melting in electric furnace, melt temperature control is 1610 DEG C, and refining is added after melting completely
Agent is skimmed after carrying out degasification；
(2) it pours into a mould：Alloy solution after skimming is poured into a mould at 1470 DEG C；
(3) quenching heat treatment：By the casting obtained after cast at 400 DEG C, according to the heating rate of 2 DEG C/min, heating
It to 490 DEG C, and keeps the temperature 8h, after water quenching to room temperature, is heated uniformly to 180 DEG C, keeps the temperature 2h, be air-cooled to room temperature to obtain the final product.
Embodiment 5：
A kind of high-chromium alloy cast ball has following chemical composition：C：2.3%, Si：1.0%, Mn：1.0%, Cr：
10.0%, Mo：≤ 0.1%, Cu：≤ 0.1%, P：≤ 0.1%, S：≤ 0.06%, Ni：0.21%, V：0.09%, Mg：
1.35%, Ti：1.1%, Zr：0.08%, surplus is Fe and inevitable impurity.
The preparation method of above-mentioned high-chromium alloy cast ball, includes the following steps：
(1) melting：Raw material is put into melting in electric furnace, melt temperature control is 1640 DEG C, and refining is added after melting completely
Agent is skimmed after carrying out degasification；
(2) it pours into a mould：Alloy solution after skimming is poured into a mould at 1490 DEG C；
(3) quenching heat treatment：By the casting obtained after cast at 385 DEG C, according to the heating rate of 3 DEG C/min, heating
It to 495 DEG C, and keeps the temperature 6h, after water quenching to room temperature, is heated uniformly to 190 DEG C, keeps the temperature 2h, be air-cooled to room temperature to obtain the final product.
Following table is that high-chromium alloy cast ball made from the method for the embodiment of the present invention 1~5 is cast with common commercially available high-chromium alloy
Correction data in ball performance, as shown in table 1.
1 data statistics of table
In summary it can obtain, the high-chromium alloy cast ball hardness that the present invention is prepared is 58-62, and impact value is all higher than 3, falls
Pellet impact fatigue life is more than 10000 times, and the service life for effectively increasing cast ball is long, enhances the wear-resisting property of cast ball.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example is modified or equivalent replacement of some of the technical features；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (6)
1. a kind of high-chromium alloy cast ball, which is characterized in that have following chemical composition：C：1.6~2.3%, Si：0.4~
1.12%, Mn：0.5~1.2%, Cr：10.0~13.0%, Mo：≤ 0.1%, Cu：≤ 0.1%, P：≤ 0.1%, S：≤
0.06%, Ni：0.10~0.25%, V：0.09~0.18%, Mg：0.9~1.46%, Ti：0.06~1.20%, Zr：0.08
~0.16%, surplus is Fe and inevitable impurity.
2. high-chromium alloy cast ball according to claim 1, which is characterized in that have following chemical composition：C：1.8~
2.1%, Si：0.6~1.0%, Mn：0.6~1.0%, Cr：11.0~12.0%, Mo：≤ 0.1%, Cu：≤ 0.1%, P：≤
0.1%, S：≤ 0.06%, Ni：0.14~0.21%, V：0.1~0.16%, Mg：1.1~1.35%, Ti：0.08~1.1%,
Zr：0.10~0.14%, surplus is Fe and inevitable impurity.
3. high-chromium alloy cast ball according to claim 2, which is characterized in that have following chemical composition：C：1.9%, Si：
0.81%, Mn：0.8%, Cr：11.5%, Mo：≤ 0.1%, Cu：≤ 0.1%, P：≤ 0.1%, S：≤ 0.06%, Ni：
0.18%, V：0.13%, Mg：1.23%, Ti：0.09%, Zr：0.12%, surplus is Fe and inevitable impurity.
4. according to the preparation method of any high-chromium alloy cast balls of claim 1-3, which is characterized in that including following step
Suddenly：
(1) melting：Raw material is put into melting in electric furnace, melt temperature control is 1610~1650 DEG C, and essence is added after melting completely
Agent is refined, is skimmed after carrying out degasification；
(2) it pours into a mould：Alloy solution after skimming is poured into a mould at 1450~1500 DEG C；
(3) quenching heat treatment：By the casting obtained after cast at 385~400 DEG C, according to the heating rate of 2~5 DEG C/min,
490~510 DEG C are warming up to, and keeps the temperature 5~8h, after water quenching to room temperature, is heated uniformly to 180~220 DEG C, keeps the temperature 2~3h, it is air-cooled
To room temperature to obtain the final product.
5. the preparation method of high-chromium alloy cast ball according to claim 4, which is characterized in that the pouring temperature is 1480
℃。
6. the preparation method of high-chromium alloy cast ball according to claim 4, which is characterized in that the heating rate be 3 DEG C/
min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810769865.2A CN108796351A (en) | 2018-07-13 | 2018-07-13 | A kind of high-chromium alloy cast ball and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810769865.2A CN108796351A (en) | 2018-07-13 | 2018-07-13 | A kind of high-chromium alloy cast ball and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108796351A true CN108796351A (en) | 2018-11-13 |
Family
ID=64076490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810769865.2A Pending CN108796351A (en) | 2018-07-13 | 2018-07-13 | A kind of high-chromium alloy cast ball and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5319916A (en) * | 1976-08-09 | 1978-02-23 | Toyo Chiyuukou Kk | Crushing balls |
| JPS5321030A (en) * | 1976-08-11 | 1978-02-27 | Toyo Chiyuukou Kk | Crushing balls |
| CN102876961A (en) * | 2012-08-31 | 2013-01-16 | 宁国市金六星研磨材料科技有限公司 | Novel ultralow-manganese and high-chromium wear-resistant and corrosion-resistant cast grinding ball |
| CN104087816A (en) * | 2014-06-24 | 2014-10-08 | 宁国市正兴耐磨材料有限公司 | Novel forged grinding ball |
| CN107779786A (en) * | 2017-10-23 | 2018-03-09 | 宁国市正兴耐磨材料有限公司 | A kind of wear-resistant ball and its preparation technology |
-
2018
- 2018-07-13 CN CN201810769865.2A patent/CN108796351A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5319916A (en) * | 1976-08-09 | 1978-02-23 | Toyo Chiyuukou Kk | Crushing balls |
| JPS5321030A (en) * | 1976-08-11 | 1978-02-27 | Toyo Chiyuukou Kk | Crushing balls |
| CN102876961A (en) * | 2012-08-31 | 2013-01-16 | 宁国市金六星研磨材料科技有限公司 | Novel ultralow-manganese and high-chromium wear-resistant and corrosion-resistant cast grinding ball |
| CN104087816A (en) * | 2014-06-24 | 2014-10-08 | 宁国市正兴耐磨材料有限公司 | Novel forged grinding ball |
| CN107779786A (en) * | 2017-10-23 | 2018-03-09 | 宁国市正兴耐磨材料有限公司 | A kind of wear-resistant ball and its preparation technology |
Non-Patent Citations (1)
| Title |
|---|
| 胡家骢: "《实用铸铁技术》", 31 October 2008 * |
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Application publication date: 20181113 |