CN108103395A - A kind of non-hardened and tempered steel thrust wheel and preparation method thereof - Google Patents
A kind of non-hardened and tempered steel thrust wheel and preparation method thereof Download PDFInfo
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- CN108103395A CN108103395A CN201711169368.0A CN201711169368A CN108103395A CN 108103395 A CN108103395 A CN 108103395A CN 201711169368 A CN201711169368 A CN 201711169368A CN 108103395 A CN108103395 A CN 108103395A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 37
- 239000010959 steel Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000005242 forging Methods 0.000 claims abstract description 45
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 230000006698 induction Effects 0.000 claims abstract description 13
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 22
- 230000008569 process Effects 0.000 abstract description 13
- 239000003607 modifier Substances 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000010791 quenching Methods 0.000 description 10
- 230000000171 quenching effect Effects 0.000 description 10
- 238000005299 abrasion Methods 0.000 description 4
- 229910001563 bainite Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
-
- 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
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
-
- 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
- C21D9/34—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tyres; for rims
-
- 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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- 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
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- 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
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
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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
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention discloses a kind of non-hardened and tempered steel thrust wheel and preparation method thereof, which is prepared using a kind of non-hardened and tempered steel that forges haveing excellent performance, forged heating, forging, control cooling, and surface induction hardening processing obtains finished product thrust wheel.With tradition it is quenched+surface induction hardening thrust wheel preparation process compared with, this thrust wheel preparation method eliminates modifier treatment process, reduces energy consumption and discharging of waste liquid, is conducive to energy conservation and environmental protection, be beneficial to reduce production cost and shorten the production cycle.
Description
Technical field
The present invention relates to technical field of engineering machinery, and in particular to a kind of non-hardened and tempered steel thrust wheel and preparation method thereof.
Background technology
Thrust wheel is the important component of tracked construction equipment walking mechanism, and main function is support equipment dead weight and lotus
It carries, crawler belt is allowed to walk along wheel.For the crawler equipment that tonnage is larger, such as large-tonnage excavator, crane, thrust wheel
Need to have good comprehensive mechanical property and surface abrasion resistance.
At present, the thrust wheel multiselect materials such as 50Mn, 40Mn2,42CrMo are molded using casting or forging technology, machinery
After roughing, preferably whole synthesis mechanical property is obtained by modifier treatment, is then handled using surface hardening, makes wheel body surface
Surface hardness reaches 45HRC ~ 55HRC, increases the surface abrasion resistance of thrust wheel with this.Thrust wheel prepared by the technique has good
Comprehensive mechanical property and surface abrasion resistance, but heating for multiple times is needed in its process, energy consumption is very big.Modifier treatment
Journey not only needs to expend mass energy, also needs consumption water, special quenching oil etc., is unfavorable for energy saving and environmental protection.
Non-hardened and tempered steel, which is not required to modifier treatment, can obtain excellent comprehensive mechanical property.Common non-hardened and tempered steel passes through addition
Vanadium, titanium, Nb-microalloying element, form tiny carbide and nitride achievees the purpose that strengthen steel, and room temperature texture is thin
Small pearlite and ferrite, comprehensive mechanical property is more excellent, is applied to automobile shaft forgings, rod-like member at present more.It is cold by controlling
But, the yield strength of such non-hardened and tempered steel can reach 600MPa ~ 700MPa, still have gap with high-quality quenched and tempered steel.In recent years, it is high-strength
Bainitic Steels, the martensite non-hardened and tempered steel of type are quickly grown, and have expanded the application range of non-hardened and tempered steel.For Micro Alloying
Steel forgings, traditional cooling means are to be cooled down or taken in air simple Insulation by hot forging placement, should
Method has some disadvantages and deficiency, is in particular in：The hardness and mechanical property of forging are difficult to control, and external environment is to most
The performance of whole parts is affected, high rejection rate.
In order to obtain excellent comprehensive mechanical property and surface abrasion resistance, crawler type walking mechanism thrust wheel tradition heat
Treatment process means are quenched+surface induction hardening.Traditional quenched+surface induction hardening treatment process, thrust wheel blank add
After warm and hot forging shaping, heat preservation quenching and tempering processing need to be reheated, after obtaining good comprehensive mechanical property, again to Zhi Chong
The working face of wheel carries out induction hardening, with this obtain high rigidity, high-wear resistance working face.Forming parts process is more,
Long in time limit, production process needs heating for multiple times, and energy consumption is big, adds production cost.Dedicated quenching oil is needed when quenched, is quenched
Fiery liquid is unfavorable for energy-saving and emission-reduction, green production.
In order to reduce the production cycle of thrust wheel and manufacture cost, part of the manufacturer develop it is a kind of using residual forging heat progress
The thrust wheel preparation method of quenching strengthening.The method by the waste heat supply temperature after controlled forge process, directly using remnant forging thermal quenching+
Lonneal technique obtains the thrust wheel finished product with certain degree of hardness.This method only need to be heated once from blank to final finished
Quenching improves the utilization ratio of the energy, significantly reduces energy consumption and manufacture cost.
The preparation method of quenching strengthening acquisition thrust wheel is carried out using residual forging heat, process is less, and energy utilization rate is high.But
There are still problems in practical applications for the process：（1）When thrust wheel size is larger, since each position cooling rate differs
It causes and causes each spot temperature uneven, do not harden so as to cause regional area and different parts quenching distortion is non-uniform asks
Topic；（2）The presence of forging surface scale reduces face-hardened quality, easily quenching soft spot occurs and influences the resistance to of parts
Grind performance；（3）Thrust wheel heat treatment process is integral quenching+lonneal, and work surface hardness is generally 45HRC ~ 55HRC,
It is difficult to obtain higher work surface hardness.
The content of the invention
Purpose：In order to overcome the deficiencies in the prior art, the present invention provides a kind of non-hardened and tempered steel thrust wheel and its system
Preparation Method, the preparation method are not required to carry out quenched process, reduce energy consumption and production cost.It is obtained using the preparation method
Non-hardened and tempered steel thrust wheel, yield strength are not less than 800MPa, and tensile strength is not less than 900MPa, and elongation after fracture is not less than 11%,
Comprehensive mechanical property is excellent, and large tonnage crawler engineering machinery is to the mechanical property requirements of thrust wheel in can meeting.Using the system
The thrust wheel that Preparation Method obtains, for the surface hardness that works up to 55HRC ~ 61HRC, wear-resisting property is excellent.
Technical solution：In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of manufacturing method of non-hardened and tempered steel thrust wheel, it is characterised in that：The thrust wheel blank, will for that can forge non-hardened and tempered steel
Thrust wheel blank carries out Forge Heating, forging, control cooling successively, and surface induction hardening processing obtains finished product thrust wheel.
Further, the non-hardened and tempered steel by percentage to the quality, contains C：0.34~0.52%、Si：0.20~0.50%、
Mn：1.20~2.0%、S：0.04~0.07%、Cr：0.05~0.50%、V：0~0.25%、Ti：0~0.1%、B：0.0005 ~ 0.0035%,
Rest part is Fe and inevitable impurity.
Further, during the control cooling, the relation for forging the temperature and time of thrust wheel is：To forge preceding add
Heat is come out of the stove as start time, then：Heating --- heats --- forging molding --- controll cooling after forging enters stove --- of coming out of the stove before forging before forging
Controll cooling after forging is come out of the stove --- enter charging basket；
Temperature when heating is come out of the stove before forging is 1150 DEG C ~ 1200 DEG C；
To 0.25min ~ 0.30min, the temperature before blocking is 1030 DEG C ~ 1080 DEG C；
To 0.65min ~ 0.80min, the temperature after finish-forging is 840 DEG C ~ 870 DEG C；
To 1.00min ~ 1.20min, temperature when controll cooling after forging enters stove is 810 DEG C ~ 840 DEG C；
To 3.20min ~ 4.85min, temperature when controll cooling after forging is come out of the stove is 450 DEG C ~ 480 DEG C；
To 6.50min ~ 7.00min, temperature when entering material frame is 360 DEG C ~ 380 DEG C.
Further, it is described control cooling during, when forging control is cold enters stove, cooling velocity control 1.6 DEG C/s ~
It 3.0 DEG C/s, comes out of the stove until forging control is cold.After the step can ensure the non-hardened and tempered steel thrust wheel forging cooling, in phase-change organization
The bainite phase of suitable number is generated, on the basis of plasticity and toughness is ensured, the intensity and hardness of parts is improved, obtains excellent
Different comprehensive mechanical property, so as to meet thrust wheel parts, particularly middle large tonnage crawler engineering machinery thrust wheel zero
The overall mechanical properties requirement of part.
Further, the surface induction hardening processing, it is ensured that thrust wheel work surface hardness reaches 55HRC ~ 61HRC, firmly
Change layer depth is 8mm ~ 18mm.The surface induction hardening processing is technological means well known to those skilled in the art, of the invention
To this without specifically limited.
The present invention also provides a kind of non-hardened and tempered steel thrust wheels, are prepared using the preparation method of preceding claim.
Non-hardened and tempered steel thrust wheel of the present invention, without carrying out modifier treatment, you can obtain yield strength and be not less than
800MPa, tensile strength are not less than 900MPa, and elongation after fracture is not less than 11%.
The thrust wheel prepared using this method, is mainly used for tracked construction equipment, such as excavator, crane, especially
Suitable for middle large tonnage crawler engineering machinery.
Advantageous effect：Non-hardened and tempered steel thrust wheel provided by the invention and preparation method thereof, the preparation method are closed by selecting
Suitable non-hardened and tempered steel raw material, meet thrust wheel forging and surface induction hardening process to the component requirements of raw material.After forging
Control cooling, obtains bainite and ferritic line and staff control, without carrying out modifier treatment, that is, obtains preferably resultant force
Performance is learned, yield strength is not less than 800MPa, and tensile strength is not less than 900MPa, and elongation after fracture is not less than 11%, in satisfaction
Large tonnage crawler engineering machinery is to the mechanical property requirements of thrust wheel.The surface mid-frequency induction hardening technique that later stage uses, makes
Thrust wheel obtains the hardened layer of certain depth, and case hardness reaches 55HRC ~ 61HRC, and wear-resisting property is excellent.It is provided by the invention
Non-hardened and tempered steel thrust wheel in the case where removing modifier treatment process, still obtains good comprehensive mechanical property and high
Work surface hardness.And modifier treatment process is removed, production cost on the one hand can be reduced, shortens the production cycle, on the other hand, is also had
Effect reduces energy consumption and discharging of waste liquid, is conducive to environmentally protective.
Description of the drawings
Fig. 1 is that the forging of embodiment 1 controls cooling curve；
Fig. 2 is the micro-organization chart after the forging control of 1 thrust wheel of embodiment is cold.
Specific embodiment
The present invention is further described with reference to specific embodiment.
Embodiment 1
In terms of quality %, the chemical composition content of selected blank is C：0.39%, Si：0.26%, Mn：1.74%, S：0.046%, V：
0.15%, B：0.001%, surplus Fe.To 1150 DEG C, 1080 DEG C of blocking temperature, 840 DEG C of final forging temperature then enters Forge Heating
Stove control cooling, 810 DEG C of charging temperature, stove internal control 2.0 DEG C/s of cooling velocity control 460 DEG C of tapping temperature.It is forged and control
The temperature variation curve of refrigeration but is as shown in Figure 1.
Microstructure observation is carried out to the thrust wheel that the above method obtains, microscopic structure is mainly by bainite+ferrite
Composition, pattern are as shown in Figure 2.Mechanics Performance Testing is carried out to the thrust wheel that the above method obtains, test result is as follows：Rp0.2=
871MPa, Rm=983MPa, A=14.5%, impact flexibility AkV2=46.4J, hardness 274HBW, comprehensive mechanical property is excellent, meets branch
The overall mechanical properties requirement of roller body.
After thrust wheel roughing after above-mentioned forging, mid-frequency induction hardening processing, hardened depth are carried out to thrust wheel working face
Spend 10mm ~ 12mm, work surface hardness 58HRC ~ 61HRC.Thrust wheel finish and after flaw detection, assemble on request,
Application obtains final finished thrust wheel.
The thrust wheel overall mechanical properties that the embodiment obtains are excellent, and large tonnage crawler engineering machinery is to Zhi Chong in satisfaction
The mechanical property requirements of wheel, work surface hardness is high, and hardening depth is big, shows preferably wear-resisting property and whole service life.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of manufacturing method of non-hardened and tempered steel thrust wheel, it is characterised in that：The thrust wheel blank is that can forge non-hardened and tempered steel,
Thrust wheel blank is carried out to Forge Heating, forging, control cooling successively, surface induction hardening processing obtains finished product thrust wheel.
2. the manufacturing method of non-hardened and tempered steel thrust wheel according to claim 1, it is characterised in that：The non-hardened and tempered steel, with
Mass percent meter, contains C：0.34~0.52%、Si：0.20~0.50%、Mn：1.20~2.0%、S：0.04~0.07%、Cr：0.05
~0.50%、V：0~0.25%、Ti：0~0.1%、B：0.0005 ~ 0.0035%, rest part Fe.
3. the manufacturing method of non-hardened and tempered steel thrust wheel according to claim 1, it is characterised in that：The mistake of the control cooling
Cheng Zhong, the relation for forging the temperature and time of thrust wheel are：It is come out of the stove for start time, then with being heated before forging：Heating before forging ---
Heating is come out of the stove before forging, and --- --- controll cooling after forging enters stove --- controll cooling after forging is come out of the stove --- and enters charging basket forging molding；
Temperature when heating is come out of the stove before forging is 1150 DEG C ~ 1200 DEG C；
To 0.25min ~ 0.30min, the temperature before blocking is 1030 DEG C ~ 1080 DEG C；
To 0.65min ~ 0.80min, the temperature after finish-forging is 840 DEG C ~ 870 DEG C；
To 1.00min ~ 1.20min, temperature when controll cooling after forging enters stove is 810 DEG C ~ 840 DEG C；
To 3.20min ~ 4.85min, temperature when controll cooling after forging is come out of the stove is 450 DEG C ~ 480 DEG C；
To 6.50min ~ 7.00min, temperature when entering material frame is 360 DEG C ~ 380 DEG C.
4. the manufacturing method of non-hardened and tempered steel thrust wheel according to claim 1, it is characterised in that：The mistake of the control cooling
Cheng Zhong, when forging control is cold enters stove, cooling velocity control is come out of the stove in 1.6 DEG C/s ~ 3.0 DEG C/s until forging control is cold.
5. the manufacturing method of non-hardened and tempered steel thrust wheel according to claim 1, it is characterised in that：The surface induction hardening
Processing, it is ensured that thrust wheel work surface hardness reaches 55HRC ~ 61HRC, and case depth is 8mm ~ 18mm.
6. a kind of non-hardened and tempered steel thrust wheel, it is characterised in that：The non-hardened and tempered steel thrust wheel is using any one of claim 1-6 institute
The preparation method for the non-hardened and tempered steel thrust wheel stated is prepared.
7. non-hardened and tempered steel thrust wheel according to claim 6, it is characterised in that：The surrender of the non-hardened and tempered steel thrust wheel is strong
For degree not less than 800MPa, tensile strength is not less than 900MPa, and elongation after fracture is not less than 11%.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000319A (en) * | 2019-03-25 | 2019-07-12 | 芜湖万联新能源汽车零部件有限公司 | A kind of band skirt non-hardened and tempered steel piston forging and forming technology |
| CN110578096A (en) * | 2019-10-24 | 2019-12-17 | 广东韶钢松山股份有限公司 | Non-quenched and tempered steel for crankshaft, crankshaft forging and preparation process thereof |
| CN111390512A (en) * | 2020-04-07 | 2020-07-10 | 中机精密成形产业技术研究院（安徽）股份有限公司 | Non-quenched and tempered steel material for electric drive shaft and production process |
| CN112981260A (en) * | 2021-02-08 | 2021-06-18 | 上海振华港机重工有限公司 | Container crane wheel steel, container crane wheel and preparation method of container crane wheel steel |
| CN115747639A (en) * | 2022-10-28 | 2023-03-07 | 中国第一汽车股份有限公司 | Bainite non-quenched and tempered steel material, steering knuckle and preparation method |
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| CN102199731A (en) * | 2011-05-18 | 2011-09-28 | 马鸣图 | Composite microalloyed large-section non-quenched and tempered steel |
| CN104988295A (en) * | 2015-07-31 | 2015-10-21 | 武汉钢铁(集团)公司 | Heat treatment method for improving medium-carbon non-quenched and tempered steel connecting rod cracking performance |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199731A (en) * | 2011-05-18 | 2011-09-28 | 马鸣图 | Composite microalloyed large-section non-quenched and tempered steel |
| CN104988295A (en) * | 2015-07-31 | 2015-10-21 | 武汉钢铁(集团)公司 | Heat treatment method for improving medium-carbon non-quenched and tempered steel connecting rod cracking performance |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110000319A (en) * | 2019-03-25 | 2019-07-12 | 芜湖万联新能源汽车零部件有限公司 | A kind of band skirt non-hardened and tempered steel piston forging and forming technology |
| CN110578096A (en) * | 2019-10-24 | 2019-12-17 | 广东韶钢松山股份有限公司 | Non-quenched and tempered steel for crankshaft, crankshaft forging and preparation process thereof |
| CN110578096B (en) * | 2019-10-24 | 2021-04-30 | 广东韶钢松山股份有限公司 | Non-quenched and tempered steel for crankshaft, crankshaft forging and preparation process thereof |
| CN111390512A (en) * | 2020-04-07 | 2020-07-10 | 中机精密成形产业技术研究院（安徽）股份有限公司 | Non-quenched and tempered steel material for electric drive shaft and production process |
| CN111390512B (en) * | 2020-04-07 | 2021-08-17 | 中机精密成形产业技术研究院（安徽）股份有限公司 | Non-quenched and tempered steel material for electric drive shaft and production process |
| CN112981260A (en) * | 2021-02-08 | 2021-06-18 | 上海振华港机重工有限公司 | Container crane wheel steel, container crane wheel and preparation method of container crane wheel steel |
| CN115747639A (en) * | 2022-10-28 | 2023-03-07 | 中国第一汽车股份有限公司 | Bainite non-quenched and tempered steel material, steering knuckle and preparation method |
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