CN107916365A - A kind of abrasion resistant cast steel and preparation method thereof - Google Patents
A kind of abrasion resistant cast steel and preparation method thereof Download PDFInfo
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- CN107916365A CN107916365A CN201710907428.8A CN201710907428A CN107916365A CN 107916365 A CN107916365 A CN 107916365A CN 201710907428 A CN201710907428 A CN 201710907428A CN 107916365 A CN107916365 A CN 107916365A
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- abrasion resistant
- cast steel
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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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The present invention relates to abrasion resistant cast steel preparing technical field, discloses a kind of abrasion resistant cast steel and preparation method thereof, and the abrasion resistant cast steel includes following chemical composition：C, Si, Mn, Cr, S, P, Fe and trace element, the mass percent of described C, Si, Mn, Cr, S, P are：C 0.03‑0.04、Si 0 .005‑0.006、Cr 0.27‑0.3、Mn 0.004‑0.005、S 0.0003‑0.0005、P 0.0003‑0.0005.The abrasion resistant cast steel and preparation method thereof, by rational chemical composition and heat treatment process, using elements such as cheap silicon, manganese, chromium, the expensive alloying elements such as not nickeliferous, molybdenum, cobalt, low production cost, utilizes step 9）To step 12）Preparation method greatly improve the wear-resisting property of abrasion resistant cast steel, while the compactness on abrasion resistant cast steel surface can also be lifted, enhance the performance of its wear resistant corrosion resistant, whole preparation method is easy to operate, can carry out further genralrlization application.
Description
Technical field
The present invention relates to abrasion resistant cast steel preparing technical field, is specially a kind of abrasion resistant cast steel and preparation method thereof.
Background technology
Cast steel is the general name for being used to produce the ferrous alloy of casting that eutectic transformation is not suffered from process of setting.Cast steel point
For cast carbon steel, cast low alloy steel and casting 3 class of special steel.For the machine parts of intensity, plasticity and toughness reguirements higher,
Need to use steel-casting, there are the mechanical mechanics property indexs such as the relatively low, impact resistance of yield strength, tensile strength for existing cast steel
It is relatively low, requirement of the product to material mechanical performance is had been unable to meet, is mostly at present to apply that there is geneva in wear-resistant material field
Body either the wear-resistant material of bainite matrix or in addition to martensite and bainite, retained austenite matrix also have
The third generation wear-resistant material of grain enhancing phase-cast steel with high chromium exploitation wear-resisting spare part, due to there is high rigidity in cast steel with high chromium
Strengthen phase Cr7C3, its carbide microhardness has reached HV1300~1600, therefore it is than preceding two generations wear-resistant material-spoken parts in traditional operas cast steel
Having with potassium steel performance and lifted by a relatively large margin, hardness can reach HRC60~65, but since its carbide typically exhibits length
Bar shaped and thicker, therefore its impact flexibility, generally all between 3~7J/cm2, some, which also have, is less than 3J/cm2, generally compares
Low, material is relatively crisp, and impact resistance is poor, thus it is not still especially desirable that it, which integrates wear-resisting property, for this reason, we carry
A kind of abrasion resistant cast steel and preparation method thereof is gone out to solve the above problems.
The content of the invention
（One）The technical problem of solution
In view of the deficiencies of the prior art, the present invention provides a kind of abrasion resistant cast steel and preparation method thereof, it is strong to possess cast steel wearability
The advantages of, solve the problems, such as that the prior art causes cast steel wear-resistant strength bad.
（Two）Technical solution
To realize the strong purpose of above-mentioned cast steel wearability, the present invention provides following technical solution：A kind of abrasion resistant cast steel is described wear-resisting
Cast steel includes following chemical composition：C, Si, Mn, Cr, S, P, Fe and trace element, the quality hundred of described C, Si, Mn, Cr, S, P
Point ratio is：C 0.03-0.04、Si 0 .005-0.006、Cr 0.27-0.3、Mn 0.004-0.005、S 0.0003-
0.0005、P 0.0003-0.0005。
Preferably, the trace element includes Ti, B, Al, Ce, La, and the mass percent of described Ti, B, Al, Ce, La are：
B 0.0001-0.005、Ti 0.01-0.05、Al 0.01-0.1、Ce 0.01-0.05、La 0.01-0.035。
Preferably, the mass percent of the Fe is removing C, Si, Mn, Cr, S, P and micro- mass percent
Remaining numerical value.
Another technical problem to be solved by the present invention is that providing a kind of preparation method of abrasion resistant cast steel, comprise the following steps：
1）From substantial amounts of complex alloy cast-steel and metallic aluminium, ferrosilicon, ferro-boron and ferrotianium is purchased on the market, by the polynary of buying
Alloy cast steel, which is put into electric furnace, carries out melting, spare after metallic aluminium, ferrosilicon, ferro-boron and the preheated processing of ferrotianium；
2）Complex alloy cast-steel is smelting to obtain molten steel, when liquid steel temperature reaches 1500-1600 DEG C, by preheated metal
Aluminium, ferrosilicon, ferro-boron and ferrotianium, which are added, continues melting into molten steel；
3）When liquid steel temperature reaches 1610-1650 DEG C, molten steel is come out of the stove, and molten steel is injected into casting ladle；
4）Injection pours the molten steel wrapped and carries out microalloy treatment to molten steel using method is poured in bag, then carries out casting of skimming,
Obtain abrasion resistant cast steel；
5）By abrasion resistant cast steel be placed into temperature be kept the temperature in 900-920 DEG C of electric furnace 3-4 it is small when, furnace cooling is to less than 300 DEG C
Come out of the stove air-cooled；
6）When abrasion resistant cast steel is placed into temperature again is that insulation 24 is small in 1050-1070 DEG C of electric furnace, furnace cooling to room temperature；
7）When insulation 1 is small in the electric furnace that temperature is 920-960 DEG C by abrasion resistant cast steel, water cooling is taken out to room temperature；
8）When by abrasion resistant cast steel, insulation 2 is small in the electric furnace that temperature is 250 DEG C, taking-up is air-cooled to room temperature；
9）The abrasion resistant cast steel cast is put into organic solvent and is soaked；
10）By step 9）In abrasion resistant cast steel carry out deashing drying process, then the abrasion resistant cast steel handled well is polished；
11）Abrasion resistant cast steel is placed into electric furnace and is heated, control temperature is at 300-400 DEG C, when heating time is 2 small；
12）By step 11）In abrasion resistant cast steel smear wear-resistant paint layer, then carry out drying and processing.
Preferably, the step 9）In soaking time for 2-3 it is small when.
Preferably, the step 10）It is middle to be polished using specification for the sand paper of 150-200 mesh.
（Three）Beneficial effect
Compared with prior art, the present invention provides a kind of abrasion resistant cast steel and preparation method thereof, possesses following beneficial effect：
The abrasion resistant cast steel and preparation method thereof, by rational chemical composition and heat treatment process, using cheap silicon, manganese,
The expensive alloying elements such as the elements such as chromium, not nickeliferous, molybdenum, cobalt, low production cost, utilizes step 9）To step 12）Preparation side
Method greatly improves the wear-resisting property of abrasion resistant cast steel, while the compactness on abrasion resistant cast steel surface can also be lifted, enhancing
The performance of its wear resistant corrosion resistant, whole preparation method is easy to operate, can carry out further genralrlization application.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical solution in the embodiment of the present invention is clearly and completely retouched
State, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example, belongs to the scope of protection of the invention.
Embodiment one：
A kind of abrasion resistant cast steel, abrasion resistant cast steel include following chemical composition：C, Si, Mn, Cr, S, P, Fe and trace element, C, Si,
The mass percent of Mn, Cr, S, P is：C 0.03-0.04、Si 0 .005-0.006、Cr 0.27-0.3、Mn 0.004-
0.005th, S 0.0003-0.0005, P 0.0003-0.0005, trace element include Ti, B, Al, Ce, La, Ti, B, Al, Ce, La
Mass percent be：B 0.0001-0.005、Ti 0.01-0.05、Al 0.01-0.1、Ce 0.01-0.05、La 0.01-
0.035, Fe mass percent is removing C, Si, Mn, Cr, S, P and the remaining numerical value of micro- mass percent.
A kind of preparation method of abrasion resistant cast steel, comprises the following steps：
1）From substantial amounts of complex alloy cast-steel and metallic aluminium, ferrosilicon, ferro-boron and ferrotianium is purchased on the market, by the polynary of buying
Alloy cast steel, which is put into electric furnace, carries out melting, spare after metallic aluminium, ferrosilicon, ferro-boron and the preheated processing of ferrotianium；
2）Complex alloy cast-steel is smelting to obtain molten steel, when liquid steel temperature reaches 1500-1600 DEG C, by preheated metal
Aluminium, ferrosilicon, ferro-boron and ferrotianium, which are added, continues melting into molten steel；
3）When liquid steel temperature reaches 1610-1650 DEG C, molten steel is come out of the stove, and molten steel is injected into casting ladle；
4）Injection pours the molten steel wrapped and carries out microalloy treatment to molten steel using method is poured in bag, then carries out casting of skimming,
Obtain abrasion resistant cast steel；
5）By abrasion resistant cast steel be placed into temperature be kept the temperature in 900-920 DEG C of electric furnace 3-4 it is small when, furnace cooling is to less than 300 DEG C
Come out of the stove air-cooled；
6）When abrasion resistant cast steel is placed into temperature again is that insulation 24 is small in 1050-1070 DEG C of electric furnace, furnace cooling to room temperature；
7）When insulation 1 is small in the electric furnace that temperature is 920-960 DEG C by abrasion resistant cast steel, water cooling is taken out to room temperature；
8）When by abrasion resistant cast steel, insulation 2 is small in the electric furnace that temperature is 250 DEG C, taking-up is air-cooled to room temperature；
9）The abrasion resistant cast steel cast is put into organic solvent and is soaked, when soaking time is 2-3 small；
10）By step 9）In abrasion resistant cast steel carry out deashing drying process, then the abrasion resistant cast steel handled well is polished, is made
Polished with the sand paper that specification is 150-200 mesh；
11）Abrasion resistant cast steel is placed into electric furnace and is heated, control temperature is at 300-400 DEG C, when heating time is 2 small；
12）By step 11）In abrasion resistant cast steel smear wear-resistant paint layer, then carry out drying and processing.
Embodiment two：
A kind of abrasion resistant cast steel, abrasion resistant cast steel include following chemical composition：C, Si, Mn, Cr, S, P, Fe and trace element, C, Si,
The mass percent of Mn, Cr, S, P is：C 0.03-0.04、Si 0 .005-0.006、Cr 0.27-0.3、Mn 0.004-
0.005th, S 0.0003-0.0005, P 0.0003-0.0005, trace element include Ti, B, Al, Ce, La, Ti, B, Al, Ce, La
Mass percent be：B 0.0001-0.005、Ti 0.01-0.05、Al 0.01-0.1、Ce 0.01-0.05、La 0.01-
0.035, Fe mass percent is removing C, Si, Mn, Cr, S, P and the remaining numerical value of micro- mass percent.
A kind of preparation method of abrasion resistant cast steel, comprises the following steps：
1）From substantial amounts of complex alloy cast-steel and metallic aluminium, ferrosilicon, ferro-boron and ferrotianium is purchased on the market, by the polynary of buying
Alloy cast steel, which is put into electric furnace, carries out melting, spare after metallic aluminium, ferrosilicon, ferro-boron and the preheated processing of ferrotianium；
2）Complex alloy cast-steel is smelting to obtain molten steel, when liquid steel temperature reaches 1400-1500 DEG C, by preheated metal
Aluminium, ferrosilicon, ferro-boron and ferrotianium, which are added, continues melting into molten steel；
3）When liquid steel temperature reaches 1600-1640 DEG C, molten steel is come out of the stove, and molten steel is injected into casting ladle；
4）Injection pours the molten steel wrapped and carries out microalloy treatment to molten steel using method is poured in bag, then carries out casting of skimming,
Obtain abrasion resistant cast steel；
5）By abrasion resistant cast steel be placed into temperature be kept the temperature in 920-940 DEG C of electric furnace 3-4 it is small when, furnace cooling is to less than 300 DEG C
Come out of the stove air-cooled；
6）When abrasion resistant cast steel is placed into temperature again is that insulation 24 is small in 1050-1070 DEG C of electric furnace, furnace cooling to room temperature；
7）When insulation 2 is small in the electric furnace that temperature is 920-960 DEG C by abrasion resistant cast steel, water cooling is taken out to room temperature；
8）When by abrasion resistant cast steel, insulation 2 is small in the electric furnace that temperature is 250 DEG C, taking-up is air-cooled to room temperature；
9）The abrasion resistant cast steel cast is put into organic solvent and is soaked, when soaking time is 2-3 small；
10）By step 9）In abrasion resistant cast steel carry out deashing drying process, then the abrasion resistant cast steel handled well is polished, is made
Polished with the sand paper that specification is 150-200 mesh；
11）Abrasion resistant cast steel is placed into electric furnace and is heated, control temperature is at 300-400 DEG C, when heating time is 2 small；
12）By step 11）In abrasion resistant cast steel smear wear-resistant paint layer, then carry out drying and processing.
In conclusion the abrasion resistant cast steel and preparation method thereof, by rational chemical composition and heat treatment process, uses
The expensive alloying elements such as element, not nickeliferous, molybdenum, cobalt such as cheap silicon, manganese, chromium, low production cost, utilizes step 9）To step
12）Preparation method greatly improve the wear-resisting property of abrasion resistant cast steel, while can also to the compactness on abrasion resistant cast steel surface into
Row lifting, enhances the performance of its wear resistant corrosion resistant, whole preparation method is easy to operate, can carry out further genralrlization application.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of changes, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of abrasion resistant cast steel, it is characterised in that the abrasion resistant cast steel includes following chemical composition：C、Si、Mn、Cr、S、P、Fe
And trace element, the mass percent of described C, Si, Mn, Cr, S, P are：C 0.03-0.04、Si 0 .005-0.006、Cr
0.27-0.3、Mn 0.004-0.005、S 0.0003-0.0005、P 0.0003-0.0005。
A kind of 2. abrasion resistant cast steel according to claim 1, it is characterised in that it is described trace element include Ti, B, Al, Ce,
La, the mass percent of described Ti, B, Al, Ce, La are：B 0.0001-0.005、Ti 0.01-0.05、Al 0.01-0.1、Ce
0.01-0.05、La 0.01-0.035。
A kind of 3. abrasion resistant cast steel according to claim 1, it is characterised in that the mass percent of the Fe for remove C,
Si, Mn, Cr, S, P and the remaining numerical value of micro- mass percent.
4. a kind of preparation method of abrasion resistant cast steel, it is characterised in that comprise the following steps：
1）From substantial amounts of complex alloy cast-steel and metallic aluminium, ferrosilicon, ferro-boron and ferrotianium is purchased on the market, by the polynary of buying
Alloy cast steel, which is put into electric furnace, carries out melting, spare after metallic aluminium, ferrosilicon, ferro-boron and the preheated processing of ferrotianium；
2）Complex alloy cast-steel is smelting to obtain molten steel, when liquid steel temperature reaches 1500-1600 DEG C, by preheated metal
Aluminium, ferrosilicon, ferro-boron and ferrotianium, which are added, continues melting into molten steel；
3）When liquid steel temperature reaches 1610-1650 DEG C, molten steel is come out of the stove, and molten steel is injected into casting ladle；
4）Injection pours the molten steel wrapped and carries out microalloy treatment to molten steel using method is poured in bag, then carries out casting of skimming,
Obtain abrasion resistant cast steel；
5）By abrasion resistant cast steel be placed into temperature be kept the temperature in 900-920 DEG C of electric furnace 3-4 it is small when, furnace cooling is to less than 300 DEG C
Come out of the stove air-cooled；
6）When abrasion resistant cast steel is placed into temperature again is that insulation 24 is small in 1050-1070 DEG C of electric furnace, furnace cooling to room temperature；
7）When insulation 1 is small in the electric furnace that temperature is 920-960 DEG C by abrasion resistant cast steel, water cooling is taken out to room temperature；
8）When by abrasion resistant cast steel, insulation 2 is small in the electric furnace that temperature is 250 DEG C, taking-up is air-cooled to room temperature；
9）The abrasion resistant cast steel cast is put into organic solvent and is soaked；
10）By step 9）In abrasion resistant cast steel carry out deashing drying process, then the abrasion resistant cast steel handled well is polished；
11）Abrasion resistant cast steel is placed into electric furnace and is heated, control temperature is at 300-400 DEG C, when heating time is 2 small；
12）By step 11）In abrasion resistant cast steel smear wear-resistant paint layer, then carry out drying and processing.
A kind of 5. preparation method of abrasion resistant cast steel according to claim 4, it is characterised in that the step 9）In immersion
When time is 2-3 small.
A kind of 6. preparation method of abrasion resistant cast steel according to claim 4, it is characterised in that the step 10）Middle use
Specification is polished for the sand paper of 150-200 mesh.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302255A (en) * | 2012-03-14 | 2013-09-18 | 宝山钢铁股份有限公司 | Manufacturing method of thin-strip casting 700 MPa grade high-strength weather resisting steel |
| CN105543688A (en) * | 2016-01-13 | 2016-05-04 | 铜陵百荣新型材料铸件有限公司 | High-strength wear-resisting cast steel and preparing process thereof |
| CN105624551A (en) * | 2016-02-26 | 2016-06-01 | 铜陵安东铸钢有限责任公司 | High-boron wear-resisting cast steel and preparation method thereof |
-
2017
- 2017-09-29 CN CN201710907428.8A patent/CN107916365A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302255A (en) * | 2012-03-14 | 2013-09-18 | 宝山钢铁股份有限公司 | Manufacturing method of thin-strip casting 700 MPa grade high-strength weather resisting steel |
| CN105543688A (en) * | 2016-01-13 | 2016-05-04 | 铜陵百荣新型材料铸件有限公司 | High-strength wear-resisting cast steel and preparing process thereof |
| CN105624551A (en) * | 2016-02-26 | 2016-06-01 | 铜陵安东铸钢有限责任公司 | High-boron wear-resisting cast steel and preparation method thereof |
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Application publication date: 20180417 |