CN107881415A - A kind of high temperature wear resistant steel plate and its manufacture method - Google Patents
A kind of high temperature wear resistant steel plate and its manufacture method Download PDFInfo
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- CN107881415A CN107881415A CN201711126922.7A CN201711126922A CN107881415A CN 107881415 A CN107881415 A CN 107881415A CN 201711126922 A CN201711126922 A CN 201711126922A CN 107881415 A CN107881415 A CN 107881415A
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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
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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
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
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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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
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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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
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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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
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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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- Mechanical Engineering (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention provides a kind of high temperature wear resistant steel plate and its manufacture method.Such steel plate is noteworthy characterized by：(1) using martensitic structure as matrix；(2) for the hardness of steel plate manufactured by between 360 450HB, steel plate manufactured by (3) can keep excellent anti-wear performance at 300 500 DEG C.Its manufacture method is：Choose different alloying components to be smelted, continuous casting or be molded into steel billet, the steel plate required for being manufactured by processes such as heating, controlled rolling, the hot and cold processing of control.Especially suitable for higher temperature be present and the severe equipment of wear working condition or parts manufacture in above-mentioned steel plate, more than 2 times of Hardox450 are reached in the high-temperature wear behavior between 300 500 DEG C, such steel plate also has good mouldability (being adapted to 90 ° of clod washes) and solderability simultaneously, especially with excellent low-temperature impact toughness and Geng Gao high temperature wear resistant performances.
Description
Technical field
The invention belongs to metallurgical manufacturing field, and in particular to a kind of high temperature wear resistant steel plate and its manufacture method.
Background technology
Wear-resisting steel plate is that the key of the equipment manufacturings such as large-scale mine machinery, engineering machinery, cement machinery and metallurgical machinery is former
Material, such as excavator, crane, bull-dozer, road roller, scratch board conveyor, ball mill, coal-winning machine, development machine, Mars Miner, mixed
Earth stirrer, pile press machine, self-clearing car, mine car and metallurgical feed bin etc., the quality of such steel plate anti-wear performance directly determine
The service life of prepared equipment.At present, the tissue of such steel plate is mainly using martensite as matrix, using less than 300 DEG C
Temperature tempering process obtain.In 300-500 DEG C of applied at elevated temperature, easily there is performance and be greatly lowered, so that
Obtaining the life-span of manufactured equipment also reduces.
At present, the ferrous materials applied to the manufacture of high temperature wear part are mainly Gao Ge, high tungsten and high vanadium alloy, and part is specially
Profit also added rare element and rare earth etc., be prepared by way of casting, and not only cost is high, and fragility vector is big, no
Beneficial to a wide range of popularization and use of wear-resisting attrition component.As patent of invention CN1335417 discloses a kind of high temperature wear steel alloy
And its production method, it with the addition of more chromium, molybdenum, vanadium and rare earth element；Patent of invention CN1908219 discloses a kind of resistance to height
Warm antiwear oxidation steel alloy and preparation method, it not only with the addition of more chromium, nickel and molybdenum element, also added a certain amount of
Tungsten and cobalt element；Patent of invention CN102534402A discloses a kind of preparation method of wear-resisting alloy steel, described antifriction alloy
Contain more chromium, vanadium and rare earth in steel, and add higher element silicon.The addition of substantial amounts of noble element, is not only consumed
Substantial amounts of resource, manufacturing cost is added, and there is also certain limitation in high temperature wear resistant performance.
The content of the invention
The purpose of the present invention is the defects of overcoming existing high temperature wear resistant material and technology of preparing to exist and deficiency, proposes one
Kind has nano titanium carbide, titanium carbide molybdenum and the vanadium carbide mixing precipitated phase of ultrahigh hardness and good thermal stability to strengthen high temperature
Polishing machine, such nanoscale precipitate are mainly formed during rolling, roller repairing, tempering and high temperature wear so that
Prepared steel still have good wear resistance during high temperature wear.Such steel plate and traditional wear-resisting steel plate phase
Than the wearing terrain manufacture being particluarly suitable under 300-500 DEG C of high temperature.
Above-mentioned purpose is realized by following scheme：
A kind of high temperature wear resistant steel plate, the component of the steel plate include by mass percentage：C：0.13-0.18%, Si：
0.50-0.80%, Mn：0.20-0.60%, P≤0.014%, S≤0.003%, Nb：0.02-0.06%, V：0.08-
0.15%th, Ti：0.015-0.04%, Cr：0.50-1.00%, Mo：0.30-0.80%, Ni：0.00-0.60%, W：0.20-
0.50%th, B：0.0008-0.0025%, Als：0.03-0.06%, N≤0.0050%, H≤1.5ppm, surplus are iron.
The manufacture method of above-mentioned high temperature wear resistant steel plate, comprises the following steps：
The first step, match, then smelted according to the mass percent of each component in above-mentioned steel plate, obtained molten steel is through true
Continuous casting is carried out after empty degassing process or is molded into steel billet, steel billet thickness 150-300mm, by obtained heating steel billet to 1180-
1250 DEG C, it is incubated 180-220min；
Second step, the steel billet obtained by the first step carries out recrystallization zone rolling and Unhydrated cement rolls, wherein recrystallizing
The finishing temperature of area's rolling is 1000-1100 DEG C, and the finishing temperature of Unhydrated cement rolling is 790-950 DEG C；
3rd step, the steel plate after second step rolling are air-cooled to room temperature after being cooled to 600-700 DEG C with 5-20 DEG C/s cooling rate,
Then out-line quenching and temper are carried out.
Further, above-mentioned 3rd step out-line quenching time-division two-step heating, wherein one-level heating-up temperature are 550-700 DEG C,
Soaking time t steel plate thickness h relation meets t=xh, wherein 2≤x≤3, and t unit is minute, h unit is millimeter；
Two level heating-up temperature is 840-880 DEG C, soaking time 10-30min；Water quenching is to room temperature after two level heating and thermal insulation for steel plate, so
0-230 DEG C of tempering is carried out afterwards.
Beneficial effects of the present invention：
1. the present invention adds a certain amount of Nb, V and Ti microalloy element and high-temperature alloy element, rolled by control
System, roller repairing and heat-treated offline realize a large amount of nano vanadium carbides, titanium carbide, titanium carbide molybdenum and niobium carbide titanium particle,
So as to still have good heat endurance and excellent performance at high temperature.
2. the good high temperature wear resistant performance of steel plate of the present invention is that have higher hardness and good at high temperature by steel plate
Nano titanium carbide, titanium carbide molybdenum and the vanadium carbide mixing precipitated phase of heat endurance is realized.
3. steel plate cold bending performance, the welding performance that the present invention obtains are good, especially with higher between 300-500 DEG C
High temperature wear resistant performance.
Brief description of the drawings
Fig. 1 is that embodiments of the invention obtain the hoc scenario of steel plate.
Embodiment
The present invention is further elaborated below in conjunction with concrete case.
A kind of high temperature wear resistant steel plate of the present invention and its manufacture method, by smelting, continuous casting/molding, rolling and
Heat treatment manufacture is formed, by the chemical composition requirement of steel grade of the present invention, and with reference to described manufacturing process, to manufacture different size
Abrasion-resistant stee.Specific composition is as follows：
The chemical composition (wt%) of the various embodiments of the present invention of table 1
The steel billet smelted is carried out by described method using the method for controlled rolling and controlled cooling or controlled rolling air cooling+heat-treated offline
The production of middle manganese wear-resistant steel plate, specific implementation are as follows：
Embodiment 1
The molten steel that the smelting of the composition of embodiment 1 is completed in being matched by table 1 carries out continuous casting, continuous casting billet after Fruit storage
Thickness 220mm, by the furnace temperature of heating steel billet to 1150 DEG C, it is incubated after 180min to come out of the stove and carries out austenite recrystallization rolling and not again
Crystal region roll, wherein recrystallization zone finishing temperature be 1030 DEG C, Unhydrated cement finishing temperature be 840 DEG C, steel plate it is final
Rolling thickness is 30mm, is cooled to after rolling with 10 DEG C/s cooling rate after 680 DEG C and is air-cooled to room temperature, then carries out out-line quenching and returns
Fire processing.Time-division two-step heating is quenched, wherein one-level heating-up temperature is 650 DEG C, soaking time 90min, two level heating-up temperature
For 860 DEG C, soaking time 20min；Steel plate water quenching after two level insulation to room temperature, then carries out 200 DEG C of tempering.
Embodiment 2
The molten steel that the smelting of the composition of embodiment 2 is completed in being matched by table 1 carries out continuous casting, continuous casting billet after Fruit storage
Thickness 220mm, by the furnace temperature of heating steel billet to 1250 DEG C, it is incubated after 200min to come out of the stove and carries out austenite recrystallization rolling and not again
Crystal region roll, wherein recrystallization zone finishing temperature be 1020 DEG C, Unhydrated cement finishing temperature be 830 DEG C, steel plate it is final
Rolling thickness is 25mm, is cooled to after rolling with 15 DEG C/s cooling rate after 650 DEG C and is air-cooled to room temperature, then carries out out-line quenching and returns
Fire processing.Time-division two-step heating is quenched, wherein one-level heating-up temperature is 640 DEG C, soaking time 70min, two level heating-up temperature
For 850 DEG C, soaking time 20min；Steel plate water quenching after two level insulation to room temperature, then carries out 190 DEG C of tempering.
Embodiment 3
The molten steel that the smelting of the composition of embodiment 3 is completed in being matched by table 1 carries out continuous casting, continuous casting billet after Fruit storage
Thickness 200mm, by the furnace temperature of heating steel billet to 1250 DEG C, it is incubated after 220min to come out of the stove and carries out austenite recrystallization rolling and not again
Crystal region roll, wherein recrystallization zone finishing temperature be 1040 DEG C, Unhydrated cement finishing temperature be 840 DEG C, steel plate it is final
Rolling thickness is 20mm, is cooled to after rolling with 15 DEG C/s cooling rate after 630 DEG C and is air-cooled to room temperature, then carries out out-line quenching and returns
Fire processing.Time-division two-step heating is quenched, wherein one-level heating-up temperature is 650 DEG C, soaking time 50min, two level heating-up temperature
For 880 DEG C, soaking time 20min；Steel plate water quenching after two level insulation to room temperature, then carries out 200 DEG C of tempering.
Embodiment 4
The molten steel that the smelting of the composition of embodiment 4 is completed in being matched by table 1 carries out continuous casting, continuous casting billet after Fruit storage
Thickness 150mm, by the furnace temperature of heating steel billet to 1200 DEG C, it is incubated after 180min to come out of the stove and carries out austenite recrystallization rolling and not again
Crystal region roll, wherein recrystallization zone finishing temperature be 1020 DEG C, Unhydrated cement finishing temperature be 860 DEG C, steel plate it is final
Rolling thickness is 15mm, is cooled to after rolling with 20 DEG C/s cooling rate after 680 DEG C and is air-cooled to room temperature, then carries out out-line quenching and returns
Fire processing.Time-division two-step heating is quenched, wherein one-level heating-up temperature is 650 DEG C, soaking time 45min, two level heating-up temperature
For 860 DEG C, soaking time 20min；Steel plate water quenching after two level insulation to room temperature, then carries out 210 DEG C of tempering.
Embodiment 5
The molten steel that the smelting of the composition of embodiment 5 is completed in being matched by table 1 carries out continuous casting, continuous casting billet after Fruit storage
Thickness 300mm, by the furnace temperature of heating steel billet to 1250 DEG C, it is incubated after 220min to come out of the stove and carries out austenite recrystallization rolling and not again
Crystal region roll, wherein recrystallization zone finishing temperature be 1030 DEG C, Unhydrated cement finishing temperature be 820 DEG C, steel plate it is final
Rolling thickness is 45mm, is cooled to after rolling with 5 DEG C/s cooling rate after 670 DEG C and is air-cooled to room temperature, then carries out out-line quenching and returns
Fire processing.Time-division two-step heating is quenched, wherein one-level heating-up temperature is 680 DEG C, soaking time 100min, two level heating-up temperature
For 860 DEG C, soaking time 20min；Steel plate water quenching after two level insulation to room temperature, then carries out 190 DEG C of tempering.
The mechanical property of steel plate in embodiment is tested, wherein intensity is according to GB/T228-2002 metal materials room
Warm stretching test method is carried out；Low-temperature impact toughness is determined by GB 2106-1980 metal Charpy V tests method；
Hardness determines according to GB/T231.1-2009 methods；Wear test is carried out on high temperature friction and wear testing machine, and wearing- in period is
15min, what is obtained the results are shown in Table shown in 2.
The mechanical property and high-temperature wear behavior of 2 steel plate of the present invention of table
As can be seen from the above table, the Brinell hardness of abrasion-resistant stee of the invention has reached more than 360HB, and tensile strength is more than
1200MPa, elongation percentage are more than 12%, and -40 DEG C of ballistic works are more than 27J, and wear resistance at elevated temperature is excellent, far above Hardox450,
High-temperature wear behavior between 300-500 DEG C has reached more than 2 times of Hardox450.It can be seen that this hair steel plate is not only with high
Intensity, hardness and good low-temperature flexibility, but also there is excellent high-temperature wear behavior.
Claims (3)
1. a kind of high temperature wear resistant steel plate, it is characterised in that the component of the steel plate includes by mass percentage：0.13-
0.18%th, Si：0.50-0.80%, Mn：0.20-0.60%, P≤0.014%, S≤0.003%, Nb：0.02-0.06%, V：
0.08-0.15%, Ti：0.015-0.04%, Cr：0.50-1.00%, Mo：0.30-0.80%, Ni：0.00-0.60%, W：
0.20-0.50%, B：0.0008-0.0025%, Als：0.03-0.06%, N≤0.0050%, H≤1.5ppm, surplus are iron.
2. the manufacture method of the high temperature wear resistant steel plate described in claim 1, it is characterised in that comprise the following steps：
The first step, match, then smelted according to the mass percent of each component in the steel plate, obtained molten steel takes off through vacuum
Continuous casting is carried out after gas disposal or is molded into steel billet, steel billet thickness 150-300mm, by obtained heating steel billet to 1180-1250 DEG C,
Soaking time 180-220min；
Second step, the steel billet obtained by the first step carries out recrystallization zone rolling and Unhydrated cement rolls, and wherein recrystallization zone rolls
The finishing temperature of system is 1000-1100 DEG C, and the finishing temperature of Unhydrated cement rolling is 790-950 DEG C；
3rd step, the steel plate after second step rolling are air-cooled to room temperature after being cooled to 600-700 DEG C with 5-20 DEG C/s cooling rate, then
Carry out out-line quenching and temper.
3. manufacture method according to claim 2, it is characterised in that the 3rd step out-line quenching time-division two-step heating, wherein
One-level heating-up temperature is 550-700 DEG C, and soaking time t steel plate thickness h relation meets t=xh, wherein 2≤x≤3, and t list
Position is minute, and h unit is millimeter；Two level heating-up temperature is 840-880 DEG C, soaking time 10-30min；Steel plate is in two level
After heating and thermal insulation then water quenching carries out 0-230 DEG C of tempering to room temperature.
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Cited By (4)
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|---|---|---|---|---|
| CN110564923A (en) * | 2019-09-23 | 2019-12-13 | 舞阳钢铁有限责任公司 | production method of quenched and tempered 27SiMn wear-resistant steel plate |
| CN111020391A (en) * | 2020-01-08 | 2020-04-17 | 常州常超模具有限公司 | Processing method of high-temperature-resistant and high-wear-resistant conveying chain |
| CN114164332A (en) * | 2021-11-26 | 2022-03-11 | 湖南华菱湘潭钢铁有限公司 | Production method of high-temperature-wear-resistant and wear-resistant steel plate |
| CN114318150A (en) * | 2021-12-27 | 2022-04-12 | 苏州昭伍亿精密五金有限公司 | High-temperature-resistant bolt and production process thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110564923A (en) * | 2019-09-23 | 2019-12-13 | 舞阳钢铁有限责任公司 | production method of quenched and tempered 27SiMn wear-resistant steel plate |
| CN111020391A (en) * | 2020-01-08 | 2020-04-17 | 常州常超模具有限公司 | Processing method of high-temperature-resistant and high-wear-resistant conveying chain |
| CN114164332A (en) * | 2021-11-26 | 2022-03-11 | 湖南华菱湘潭钢铁有限公司 | Production method of high-temperature-wear-resistant and wear-resistant steel plate |
| CN114164332B (en) * | 2021-11-26 | 2023-10-24 | 湖南华菱湘潭钢铁有限公司 | Production method of high-temperature-wear-resistant and wear-resistant steel plate |
| CN114318150A (en) * | 2021-12-27 | 2022-04-12 | 苏州昭伍亿精密五金有限公司 | High-temperature-resistant bolt and production process thereof |
| CN114318150B (en) * | 2021-12-27 | 2022-12-27 | 苏州昭伍亿精密五金有限公司 | High-temperature-resistant bolt and production process thereof |
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| CN107881415B (en) | 2019-09-27 |
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