CN102286691A - Steel plate for automobile axle housing and production method thereof - Google Patents

Steel plate for automobile axle housing and production method thereof Download PDF

Info

Publication number
CN102286691A
CN102286691A CN2011102638827A CN201110263882A CN102286691A CN 102286691 A CN102286691 A CN 102286691A CN 2011102638827 A CN2011102638827 A CN 2011102638827A CN 201110263882 A CN201110263882 A CN 201110263882A CN 102286691 A CN102286691 A CN 102286691A
Authority
CN
China
Prior art keywords
steel plate
rolling
axle housing
percent
steel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011102638827A
Other languages
Chinese (zh)
Inventor
罗军
樊雷
周昊明
刘祖强
陈吉强
周汉全
陈小龙
卢伟同
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liuzhou Iron and Steel Co Ltd
Original Assignee
Liuzhou Iron and Steel Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liuzhou Iron and Steel Co Ltd filed Critical Liuzhou Iron and Steel Co Ltd
Priority to CN2011102638827A priority Critical patent/CN102286691A/en
Publication of CN102286691A publication Critical patent/CN102286691A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a steel plate for an automobile axle housing, which comprises the following ingredients in percentage by weight: 0.1 to 0.18 percent of C, at most 0.5 percent of Si, 1.2 to 1.6 percent of Mn, 0.01 to 0.06 percent of Ti, 0.01 to 0.04 percent of Nb, at most 0.025 percent of P, at most 0.015 percent of S and the balance Fe and impurities. A production method of the steel plate comprises the following steps of: casting converter smelted molten steel meeting the chemical ingredient requirements into plate blanks, adding TiFe after white slag manufacture through LF refining according to the percentages of Ti, Fe and Nb and adding NbFe in the converter work procedure or the LF refining; carrying out heating and heat insulation on the plate blanks; carrying out rough rolling at the rolling temperature being 1080 to 1120 DEG C, carrying out fine rolling at the rolling temperature being 910 to 950 DEG C, carrying out fine rolling at the final rolling temperature being 830 to 870 DEG C, carrying out tertiary continuous rolling after the fine rolling and maintaining the final three downwards pressing rate of the rolling no lower than 11 percent, 8 percent and 6 percent; and maintaining the shearing temperature being 150 to 300 DEG C. The mechanical property index and the cod forming performance of the steel plate are improved.

Description

Automobile axle housing steel plate and production method thereof
Technical field
The present invention relates to the automotive sheet field, particularly automobile axle housing steel plate and production method thereof.
Background technology
Axle housing is the pontic of automobile drive axle assembly, and the quality of its quality is the key factor of restriction automobile supporting capacity.Axle housing steel is used to make automotive axle after cold punching or heat are washed into shape, and play and support and the load-bearing effect, be the key position of automobile chassis.In vehicle traveling process, axle housing bears heavy load, therefore requires axle housing steel that enough strength and stiffness are arranged.Simultaneously, consider that the user in order to save cost and to improve surface quality, often adopts cold stamping shaped.Therefore, the cold formability of axle housing steel and high-intensity coupling just seem particularly important.
For automobile axle housing, all adopt punching press one welding process production at present both at home and abroad, and the material that uses there is special-purpose axle housing microalloyed steel abroad, domestic normal employing 16MnL replaces, and the axle housing The comprehensive performance is low.In recent years, along with further developing of micro-alloying technology and controlled rolling and controlled cooling technology, generally adopt Nb, Ti microalloying mode to produce the automobile axle housing steel plate, as the T52L of Wuhan Iron and Steel Plant, its chemical ingredients composition is by weight percentage: C:0.06~0.12%, Si≤0.15%, Mn:0.45~0.65%, Ti:0.06~0.12%, P≤0.025%, S≤0.025%.This steel Ti content is higher, and is very responsive to technology, and the product performance fluctuation is bigger; And this steel σ s/ σ b is 0.82, is unfavorable for the cold-forming of steel plate.The WL510 of Wuhan Iron and Steel Plant, its chemical ingredients and weight percent are: C:0.07~0.13%, Si:0.10~0.40%, Mn:1.0~1.5%, Nb≤0.04%, P:0.018~0.021%, S:0.004~0.008%.Though d=0 is qualified in this steel clod wash, σ s/ σ b is 0.79~0.83, and the cold-forming of steel plate is relatively poor; And this steel adds more precious metal Nb, guarantees the intensity of steel by the mode of refined crystalline strengthening and precipitation strength, and production cost is higher.
Therefore, in the prior art, production can supply the stamping forming automobile axle housing steel plate of user, must add an amount of alloying element, by effective smelting continuous casting process and cooling controlling and rolling controlling process, obtains best tissue, mechanical performance index and cold forming capability.
Summary of the invention
At the correlation technique problem of prior art, the object of the present invention is to provide a kind of automobile axle housing with the steel plate and the method for producing this steel plate, so that this steel plate has optimum mechanical properties index and cold forming capability.
For achieving the above object, the invention provides a kind of automobile axle housing steel plate, its chemical ingredients is formed: C:0.10~0.18%, Si :≤0.50%, Mn:1.20~1.60%, Ti:0.010~0.060%, Nb:0.010~0.040%, P: S≤0.025% :≤0.015%, and all the other are Fe and unavoidable impurities.
Preferably, automobile axle housing is formed with the chemical ingredients of steel plate: C:0.13%, Si:0.31%, Mn:1.35%, Ti:0.29%, Nb:0.014%, P:0.018%, S:0.005%, all the other are Fe and unavoidable impurities.
Preferably, automobile axle housing is organized as ferrite and pearlitic structure with steel plate, and the rank of banded structure≤2.5 grade.
On the other hand, the present invention also provides the production method of a kind of automobile axle housing with steel plate, comprise the steps: that (1) with the weight percent that satisfies chemical ingredients of converter smelting gained is: C:0.10~0.18%, Si :≤0.50%, Mn:1.20~1.60%, Ti:0.010~0.060%, Nb:0.010~0.040%, P :≤0.025%, S :≤0.015%, all the other molten steel castings for Fe and unavoidable impurities become the thick slab of 220mm, in the smelting molten steel process, according to the Ti in the above-mentioned chemical ingredients that requires to satisfy, Fe, the per-cent of Nb, after the LF refining treatment has been made white slag, add TiFe, and add NbFe in the converter operation before the LF refining treatment or in LF refining treatment process; (2) slab is cut laggard stove heat tracing, wherein the heating zone temperature is 1100~1250 ℃, and the soaking zone temperature is 1150~1200 ℃, heat-up time 〉=240min, and the slab upper and lower surface temperature difference is controlled in 30 ℃; (3) then, in the roughing operation, 1080~1120 ℃ of roughing start rolling temperatures, 910~950 ℃ of finish rolling start rolling temperatures, 830~870 ℃ of finish rolling finishing temperatures, three passage continuous rollings after the finish rolling, under the prerequisite that guarantees plate shape and do not exceed standard with the plate difference, rolling last 3 road drafts should be not less than 11%, 8%, 6%; (4) control steel plate shearing temperature is at 150~300 ℃.
Again on the one hand, the present invention also provides the production method of a kind of automobile axle housing with steel plate, comprise the steps: that (1) with the weight percent that satisfies chemical ingredients of converter smelting gained is: C:0.13%, Si:0.31%, Mn:1.35%, Ti:0.29%, Nb:0.014%, P:0.018%, S:0.005%, all the other molten steel castings for Fe and unavoidable impurities become slab, wherein, in the smelting molten steel process, according to the Ti in the above-mentioned chemical ingredients that requires to satisfy, Fe, the per-cent of Nb, after the LF refining treatment has been made white slag, add TiFe, and add NbFe in the converter operation before the LF refining treatment or in LF refining treatment process; (2) under 1200 ± 30 ℃ of conditions, described slab is heated, heat-up time 240min; (3) select roughing, last pass number according to different finished product thicknesses, wherein, 1100 ± 20 ℃ of roughing start rolling temperatures, 970~1010 ℃ of roughing finishing temperatures, 920 ± 20 ℃ of finish rolling finishing temperatures; (4) control steel plate shearing temperature is at 200 ± 15 ℃.
Preferably, the described weight percent that satisfies chemical ingredients of smelting in converter consists of: C:0.13%, Si:0.31%, Mn:1.35%, Ti:0.29%, Nb:0.014%, P:0.018%, S:0.005%, all the other molten steel for Fe and unavoidable impurities comprise the steps: (1) employing molten iron pre-desulfurization technology; (2) omnidistance blowing argon gas at the bottom of the converter, control tapping C≤0.09% (weight percent), P≤0.020% (weight percent); (3) adopt the LF refining treatment; (4) adopt sheet billet continuous casting, wherein, continuous casting adopts whole process protection casting and induction stirring technology, and secondary cooling system adopts the middle cold water meter of corresponding thickness section, and pulling rate is controlled at 1.10 ± 0.20m/min, and middle bag temperature is controlled at 1530 ± 30 ℃.
Than prior art, beneficial effect of the present invention is:
(1) automobile axle housing that adopts present method to produce has good intensity, toughness and weldability with steel plate, its yield strength reaches more than the 400MPa, tensile strength reaches more than the 530MPa, unit elongation reaches more than 25%, b is between 0.73~0.79 for yield strength σ s/ tensile strength sigma, has cold forming capability preferably.
(2) steel plate be organized as evenly tiny ferrite and pearlitic structure, ferrite grain size is 9.5~10.5 grades, the tiny subgrain that disperse distributes helps improving armor plate strength and toughness; This steel steel is pure, and inclusion is less, and sulfide-based being mingled with alumina type is mingled with 0~0.5 grade, and no silicates is mingled with, and the spherical oxide class is mingled with≤and 1 grade, the spherical class of single particle is mingled with 0~0.5 grade; Simultaneously, banded structure≤2.5 grade can effectively prevent the punching press crackle that causes, improve the cold forming capability of steel plate.
(3) the axle housing steel plate that adopts the inventive method to produce, the adding alloying element content is less, has reduced the production cost of enterprise; Simultaneously,, reduced the yield tensile ratio of steel plate, improved the cold forming capability of steel plate by cooling controlling and rolling controlling process.
Description of drawings
Fig. 1 is the metallographic structure of axle housing of the present invention with steel plate (LQK510);
Fig. 2 is the inclusion pattern of axle housing of the present invention with steel plate (LQK510).
Embodiment
Automobile axle housing of the present invention is to consider from the following aspect with the chemical composition design of steel plate:
(1) C: be strengthening element most economical in the soft steel, carbon content is low excessively, and intensity does not reach requirement, too high levels can reduce the plasticity and the impelling strength of steel, worsens cold forming capability and welding property, so present automobile steel C content, under the prerequisite of proof strength, downward trend is gradually arranged.Therefore, C content is controlled at 0.10~0.18%.
(2) Mn: manganese is good reductor, utilizes the solution strengthening effect of manganese can improve the intensity of steel.Mn is very favourable to the low-temperature flexibility of improving steel, and along with the increase of Mn content, the Cold Brittleness Transition Temperature of steel descends.According to data, under the same case, the Mn too high levels can increase the banded structure of steel, influences punching performance.Therefore, Mn content is controlled at 1.20~1.60%.
(3) Si can improve the intensity of steel, but the plasticity of steel is had disadvantageous effect, therefore, in conjunction with the characteristics of this steel, its content is defined as Si≤0.50%.
(4) Ti and nitrogen, oxygen, carbon have extremely strong avidity, are the effective elements of a kind of good reductor and fixed nitrogen, oxygen.Simultaneously, Ti is a kind of intensive carbide and nitride forming element, add at steel and pine for stoping austenite crystal to grow up, and the tiny compound of diffusion-precipitation in the operation of rolling, thus play the effect of crystal grain thinning, precipitation strength.Ti content is defined as 0.010~0.060%.In addition, steel plate is in the process of welding, and TiN in the steel and TiC particle can significantly stop the heat affected zone grain growth, thereby improve the steel plate welding property.
(5) Nb has refined crystalline strengthening effect preferably, improves the obdurability of steel plate; Simultaneously, Nb is again a precious metal element, can improve the production cost of enterprise, therefore Nb content is defined as 0.010~0.040%.
(6) P, S element are the harmful elements in the wear resisting steel, reduce the punching performance and the welding property of steel, should be controlled in the lower scope.Therefore P content is defined as≤0.025%, S content is defined as<0.015.
Based on above design, the invention provides a kind of automobile axle housing steel plate, it consists of according to weight percent: C:0.10~0.18%, Si :≤0.50%, Mn:1.20~1.60%, Ti:0.010~0.060%, Nb:0.010~0.040%, P: S≤0.025% :≤0.015%, and all the other are Fe and unavoidable impurities.Advantageously, automobile axle housing steel plate of the present invention, can be preferably according to its composition of weight percent: C:0.13%, Si:0.31%, Mn:1.35%, Ti:0.29%, Nb:0.014%, P:0.018%, S:0.005%, all the other are Fe and unavoidable impurities.
Automobile axle housing of the present invention is with the evenly tiny ferrite and the pearlitic structure that be organized as of steel plate, and ferrite grain size is 9.5~10.5 grades, and the tiny subgrain that disperse distributes helps improving armor plate strength and toughness; This steel steel is pure, and inclusion is less, and sulfide-based being mingled with alumina type is mingled with 0~0.5 grade, and no silicates is mingled with, and the spherical oxide class is mingled with≤and 1 grade, the spherical class of single particle is mingled with 0~0.5 grade; Simultaneously, banded structure≤2.5 grade can effectively prevent the punching press crackle that causes, improve the cold forming capability of steel plate.
Fig. 1 shows the metallographic structure of axle housing of the present invention with steel plate; Fig. 2 shows the inclusion pattern of axle housing of the present invention with steel plate.
On the other hand, the present invention also provides the production method of a kind of automobile axle housing with steel plate, and this method comprises the steps:
(1) the converter smelting gained satisfied that it consists of according to weight percent: C:0.10~0.18%, Si :≤0.50%, Mn:1.20~1.60%, Ti:0.010~0.060%, Nb:0.010~0.040%, P :≤0.025%, S :≤0.015%, all the other molten steel castings for Fe and unavoidable impurities become the thick slab of 220mm, wherein, in the smelting molten steel process, according to Ti in the aforementioned percentage, Fe, the weight percent requirement of Nb, after the LF refining treatment has been made white slag, add TiFe, and add NbFe in the converter operation before the LF refining treatment or in LF refining treatment process;
(2) slab that is cast into is cut laggard stove heat tracing, wherein the heating zone temperature is 1100~1250 ℃, and the soaking zone temperature is 1150~1200 ℃, heat-up time 〉=240min, and the slab upper and lower surface temperature difference is controlled in 30 ℃;
(3) then, in the roughing operation, 1080~1120 ℃ of roughing start rolling temperatures, 910~950 ℃ of finish rolling start rolling temperatures, 830~870 ℃ of finish rolling finishing temperatures, three passage continuous rollings after the finish rolling are under the prerequisite that guarantees plate shape and do not exceed standard with the plate difference, under the prerequisite that guarantees plate shape and do not exceed standard with the plate difference, rolling last 3 road drafts should be not less than 11%, 8%, 6%; And
(4) control steel plate shearing temperature is at 150~300 ℃.
To use with the thick axle housing steel plate of one heat steel production 14mm, 16mm is example, producing axle housing with its composition of steel plate according to weight percent is: C:0.13%, Si:0.31%, Mn:1.35%, Ti:0.29%, Nb:0.014%, P:0.018%, S:0.005%, all the other are Fe and unavoidable impurities, and its production comprises the steps:
(1) be cast into the step of slab, that is, the molten steel casting that the above-mentioned chemical ingredients of satisfying of converter smelting gained is required becomes slab, and the step that is cast into slab comprises following substep:
(1-1) adopt molten iron pre-desulfurization technology,
(1-2) omnidistance blowing argon gas at the bottom of the converter, control tapping C≤0.09% (weight percent), P≤0.020% (weight percent),
(1-3) adopt the LF refining treatment, the weight percent requirement according to Ti, Fe in the aforementioned percentage adds TiFe after the LF refining treatment has been made white slag;
(1-4) adopt sheet billet continuous casting technology, continuous casting adopts whole process protection casting and induction stirring technology, and secondary cooling system adopts the middle cold water meter of corresponding thickness section, and pulling rate is controlled at 1.10 ± 0.20m/min, and middle bag temperature is controlled at 1530 ± 30 ℃,
Wherein, if do not add NbFe in the converter operation before the LF refining treatment, then add NbFe in LF refining treatment process, institute's add-on requires to determine according to the weight percent of Nb, Fe in the aforementioned weight percent that will satisfy;
(2) under 1200 ± 30 ℃ of conditions, slab is heated, heat-up time 240min;
(3) select roughing, last pass number according to different finished product thicknesses, wherein, 1100 ± 20 ℃ of roughing start rolling temperatures, 970~1010 ℃ of roughing finishing temperatures, 920 ± 20 ℃ of finish rolling finishing temperatures;
(4) control steel plate shearing temperature is at 200 ± 15 ℃.
After the user was with the steel plate impact briquetting, workpiece deformation was even, and no cracking phenomena finally makes qualified workpiece.Mechanical properties test and metallographic examination are carried out in sampling on the axle housing steel plate after rolling, and mechanical properties test the results are shown in Table 1, and metallographic examination the results are shown in Table 2.
Table 1-mechanical property result
In the table 1: the Rel-yield strength; Rm-tensile strength; The A-elongation after fracture; 0 ℃ of Akv-O ℃ of ballistic work; The J-joule.
Table 2-metallographic examination result
In the table 2, A, B, C, D, DS are the classification of non-metallic inclusion, A: sulfide-based; B: alumina type; C: Sulfates; D: spherical oxide class; DS: the spherical class of single particle.F+P represents ferrite and perlite.
The prior art of mentioning in table 1 and table 2 and the background technology is compared, the automobile axle housing that adopts present method to produce has good intensity, toughness and weldability with steel plate, its yield strength reaches more than the 400MPa, tensile strength reaches more than the 530MPa, unit elongation reaches more than 25%, b is between 0.73~0.79 for yield strength σ s/ tensile strength sigma, has cold forming capability preferably.Steel plate be organized as evenly tiny ferrite and pearlitic structure, ferrite grain size is 9.5~10.5 grades, the tiny subgrain that disperse distributes helps improving armor plate strength and toughness; This steel steel is pure, and inclusion is less, and sulfide-based being mingled with alumina type is mingled with 0~0.5 grade, and no silicates is mingled with, and the spherical oxide class is mingled with≤and 1 grade, the spherical class of single particle is mingled with 0~0.5 grade; Simultaneously, banded structure≤2.5 grade can effectively prevent the punching press crackle that causes, improve the cold forming capability of steel plate.In addition, the axle housing steel plate that adopts the inventive method to produce, the adding alloying element content is less, has reduced the production cost of enterprise; Simultaneously,, reduced the yield tensile ratio of steel plate, improved the cold forming capability of steel plate by cooling controlling and rolling controlling process.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (6)

1. automobile axle housing steel plate, it is characterized in that, its chemical ingredients is formed: C:0.10~0.18%, Si :≤0.50%, Mn:1.20~1.60%, Ti:0.010~0.060%, Nb:0.010~0.040%, P: S≤0.025% :≤0.015%, and all the other are Fe and unavoidable impurities.
2. automobile axle housing steel plate according to claim 1, it is characterized in that, its chemical ingredients is formed: C:0.13%, Si:0.31%, Mn:1.35%, Ti:0.29%, Nb:0.014%, P:0.018%, S:0.005%, all the other are Fe and unavoidable impurities.
3. automobile axle housing steel plate according to claim 1 and 2 is characterized in that, described automobile axle housing is organized as ferrite and pearlitic structure with steel plate, and the rank of banded structure≤2.5 grade.
4. the production method of the described automobile axle housing usefulness of claim 1 steel plate is characterized in that, comprises the steps:
(1) molten steel casting that satisfies the requirement of claim 1 chemical ingredients with the converter smelting gained becomes the thick slab of 220mm, wherein, in the smelting molten steel process, per-cent according to the Ti in claim 1 chemical ingredients, Fe, Nb, after the LF refining treatment has been made white slag, add TiFe, and add NbFe in the converter operation before the LF refining treatment or in LF refining treatment process;
(2) described slab is cut laggard stove heat tracing, wherein the heating zone temperature is 1100~1250 ℃, and the soaking zone temperature is 1150~1200 ℃, heat-up time 〉=240min, and the slab upper and lower surface temperature difference is controlled in 30 ℃;
(3) then, in the roughing operation, 1080~1120 ℃ of roughing start rolling temperatures, 910~950 ℃ of finish rolling start rolling temperatures, 830~870 ℃ of finish rolling finishing temperatures, three passage continuous rollings after the finish rolling, under the prerequisite that guarantees plate shape and do not exceed standard with the plate difference, rolling last 3 road drafts should be not less than 11%, 8%, 6%;
(4) control steel plate shearing temperature is at 150~300 ℃.
5. the production method of the described automobile axle housing usefulness of claim 2 steel plate is characterized in that, comprises the steps:
(1) molten steel casting that satisfies the requirement of claim 2 chemical ingredients with the converter smelting gained becomes slab, wherein, in the smelting molten steel process, per-cent according to the Ti in claim 2 chemical ingredients, Fe, Nb, after the LF refining treatment has been made white slag, add TiFe, and add NbFe in the converter operation before the LF refining treatment or in LF refining treatment process;
(2) under 1200 ± 30 ℃ of conditions, described slab is heated, heat-up time 240min;
(3) select roughing, last pass number according to different finished product thicknesses, wherein, 1100 ± 20 ℃ of roughing start rolling temperatures, 970~1010 ℃ of roughing finishing temperatures, 920 ± 20 ℃ of finish rolling finishing temperatures;
(4) control steel plate shearing temperature is at 200 ± 15 ℃.
6. production method according to claim 5 is characterized in that, the described molten steel casting that satisfies the requirement of claim 2 chemical ingredients with the converter smelting gained becomes slab to comprise the steps:
(1) adopts molten iron pre-desulfurization technology;
(2) omnidistance blowing argon gas at the bottom of the converter, control tapping C≤0.09% (weight percent), P≤0.020% (weight percent);
(3) adopt the LF refining treatment;
(4) sheet billet continuous casting is adopted in described casting, and wherein, continuous casting adopts whole process protection casting and induction stirring technology, and secondary cooling system adopts the middle cold water meter of corresponding thickness section, and pulling rate is controlled at 1.10 ± 0.20m/min, and middle bag temperature is controlled at 1530 ± 30 ℃.
CN2011102638827A 2011-09-07 2011-09-07 Steel plate for automobile axle housing and production method thereof Pending CN102286691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011102638827A CN102286691A (en) 2011-09-07 2011-09-07 Steel plate for automobile axle housing and production method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011102638827A CN102286691A (en) 2011-09-07 2011-09-07 Steel plate for automobile axle housing and production method thereof

Publications (1)

Publication Number Publication Date
CN102286691A true CN102286691A (en) 2011-12-21

Family

ID=45333444

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011102638827A Pending CN102286691A (en) 2011-09-07 2011-09-07 Steel plate for automobile axle housing and production method thereof

Country Status (1)

Country Link
CN (1) CN102286691A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103422020A (en) * 2013-09-05 2013-12-04 济钢集团有限公司 Steel plate for punching-welding axle housing and manufacturing method thereof
CN103469066A (en) * 2013-09-09 2013-12-25 济钢集团有限公司 Method for producing high-formability steel plate by using heavy and medium plate mill and steel plate manufactured by method
CN104630629A (en) * 2015-03-06 2015-05-20 河北普阳钢铁有限公司 Automotive axle housing steel and preparation method thereof
CN107267728A (en) * 2017-06-09 2017-10-20 首钢京唐钢铁联合有限责任公司 A kind of cold-drawn hot rolled strip and its production method
CN107385136A (en) * 2017-06-15 2017-11-24 宝钢集团新疆八钢铁有限公司 Axle housing steel BQK580 precipitate control methods
CN109182909A (en) * 2018-10-12 2019-01-11 攀钢集团攀枝花钢铁研究院有限公司 Automobile steering system medium carbon steel and its production method
CN109722597A (en) * 2018-12-21 2019-05-07 山东钢铁股份有限公司 One kind having good low temperature resistant toughness thin gauge high-strength steel sheet and its production method
CN111155028A (en) * 2019-12-26 2020-05-15 张家港宏昌钢板有限公司 Steel plate for normalized DH36 wind power and preparation method thereof
CN111235460A (en) * 2020-02-12 2020-06-05 首钢集团有限公司 Axle housing steel suitable for induction heating and production method thereof
CN111793774A (en) * 2020-07-01 2020-10-20 甘肃酒钢集团宏兴钢铁股份有限公司 620MPa grade automobile axle housing cold stamping steel plate and preparation method thereof
CN112195403A (en) * 2020-09-28 2021-01-08 首钢集团有限公司 700 MPa-grade hot-formed axle housing steel and preparation method thereof
CN112647016A (en) * 2020-11-23 2021-04-13 首钢集团有限公司 Steel plate for 520 MPa-level bridge shell cover and manufacturing method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH062037A (en) * 1992-06-15 1994-01-11 Kawasaki Steel Corp Production of non-heattreated high tensile strength steel having >=70kgf/mm2 tensile strength
US5609818A (en) * 1992-12-11 1997-03-11 Nippon Steel Corporation Steel excellent in corrosion resistance and processability
JP2001115233A (en) * 1999-10-20 2001-04-24 Sumitomo Metal Ind Ltd High strength steel sheet excellent in weldability and stress corrosion cracking resistance and producing method therefor
CN1479797A (en) * 2000-12-07 2004-03-03 新日本制铁株式会社 High strength hot rolled steel plate excellent in enlargeability and ductlity and method for production thereof
JP2004244680A (en) * 2003-02-14 2004-09-02 Nippon Steel Corp Hot rolled steel plate with excellent scale adhesion, and its manufacturing method
CN102127706A (en) * 2010-12-30 2011-07-20 首钢总公司 High-strength long-fatigue life wheel steel used for heavy truck and manufacturing method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH062037A (en) * 1992-06-15 1994-01-11 Kawasaki Steel Corp Production of non-heattreated high tensile strength steel having >=70kgf/mm2 tensile strength
US5609818A (en) * 1992-12-11 1997-03-11 Nippon Steel Corporation Steel excellent in corrosion resistance and processability
JP2001115233A (en) * 1999-10-20 2001-04-24 Sumitomo Metal Ind Ltd High strength steel sheet excellent in weldability and stress corrosion cracking resistance and producing method therefor
CN1479797A (en) * 2000-12-07 2004-03-03 新日本制铁株式会社 High strength hot rolled steel plate excellent in enlargeability and ductlity and method for production thereof
JP2004244680A (en) * 2003-02-14 2004-09-02 Nippon Steel Corp Hot rolled steel plate with excellent scale adhesion, and its manufacturing method
CN102127706A (en) * 2010-12-30 2011-07-20 首钢总公司 High-strength long-fatigue life wheel steel used for heavy truck and manufacturing method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
《宽厚板》 20101230 王绍松等 汽车桥壳用DQK415钢板的工艺研究 19-21 1、3、4 第16卷, 第6期 *
王绍松等: "汽车桥壳用DQK415钢板的工艺研究", 《宽厚板》, vol. 16, no. 6, 30 December 2010 (2010-12-30), pages 19 - 21 *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103422020B (en) * 2013-09-05 2015-05-20 济钢集团有限公司 Steel plate for punching-welding axle housing and manufacturing method thereof
CN103422020A (en) * 2013-09-05 2013-12-04 济钢集团有限公司 Steel plate for punching-welding axle housing and manufacturing method thereof
CN103469066A (en) * 2013-09-09 2013-12-25 济钢集团有限公司 Method for producing high-formability steel plate by using heavy and medium plate mill and steel plate manufactured by method
CN103469066B (en) * 2013-09-09 2015-08-12 济钢集团有限公司 A kind of utilize plate mill to produce high-mouldability energy steel plate method and obtained steel plate
CN104630629A (en) * 2015-03-06 2015-05-20 河北普阳钢铁有限公司 Automotive axle housing steel and preparation method thereof
CN107267728A (en) * 2017-06-09 2017-10-20 首钢京唐钢铁联合有限责任公司 A kind of cold-drawn hot rolled strip and its production method
CN107267728B (en) * 2017-06-09 2019-04-12 首钢京唐钢铁联合有限责任公司 A kind of cold-drawn hot rolled strip and its production method
CN107385136A (en) * 2017-06-15 2017-11-24 宝钢集团新疆八钢铁有限公司 Axle housing steel BQK580 precipitate control methods
CN109182909B (en) * 2018-10-12 2021-06-04 攀钢集团攀枝花钢铁研究院有限公司 Medium carbon steel for automobile steering system and production method thereof
CN109182909A (en) * 2018-10-12 2019-01-11 攀钢集团攀枝花钢铁研究院有限公司 Automobile steering system medium carbon steel and its production method
CN109722597A (en) * 2018-12-21 2019-05-07 山东钢铁股份有限公司 One kind having good low temperature resistant toughness thin gauge high-strength steel sheet and its production method
CN111155028A (en) * 2019-12-26 2020-05-15 张家港宏昌钢板有限公司 Steel plate for normalized DH36 wind power and preparation method thereof
CN111235460A (en) * 2020-02-12 2020-06-05 首钢集团有限公司 Axle housing steel suitable for induction heating and production method thereof
CN111235460B (en) * 2020-02-12 2021-08-17 首钢集团有限公司 Axle housing steel suitable for induction heating and production method thereof
CN111793774A (en) * 2020-07-01 2020-10-20 甘肃酒钢集团宏兴钢铁股份有限公司 620MPa grade automobile axle housing cold stamping steel plate and preparation method thereof
CN112195403A (en) * 2020-09-28 2021-01-08 首钢集团有限公司 700 MPa-grade hot-formed axle housing steel and preparation method thereof
CN112195403B (en) * 2020-09-28 2021-11-19 首钢集团有限公司 700 MPa-grade hot-formed axle housing steel and preparation method thereof
CN112647016A (en) * 2020-11-23 2021-04-13 首钢集团有限公司 Steel plate for 520 MPa-level bridge shell cover and manufacturing method thereof

Similar Documents

Publication Publication Date Title
CN102286691A (en) Steel plate for automobile axle housing and production method thereof
CN103060678B (en) A kind of warm-working nanometer austenite strengthens plasticising steel and preparation method thereof
CN101280390B (en) High-strength hot rolled steel plate and manufacturing method thereof
CN107557678A (en) Inexpensive 550MPa levels hot rolling container weathering steel and its manufacture method
CN103667906B (en) Tensile strength 590MPa level hot rolling High Tensile Thin Steel Plate and production method thereof
CN101914725A (en) Low-carbon ultra-deep punching cold-rolling steel sheet and production method thereof
CN101768698A (en) Low cost yield strength 700MPA level non-tempering processing high strength steel plate and manufacturing method thereof
CN106191678B (en) With the tensile strength >=1700MPa hot formings steel and production method of medium thin slab Direct Rolling
CN102242322B (en) Improved 40CrNiMo steel and preparation method thereof
CN101824581B (en) High-yield strength (450MPa), high-strength and weather-resistant steel plate and production method thereof
CN102912235B (en) Hot-rolled dual-phase steel in 590MPa tensile strength grade and method for manufacturing hot-rolled dual-phase steel
CN102071368A (en) Medium carbon non-quenched and tempered steel used in low-cost forging
CN103255342B (en) A kind of 600MPa grade high-strength hot continuous rolling structure iron and manufacture method thereof
CN105803334A (en) Hot-rolled complex phase steel with tensile strength of 700 MPa and production method thereof
CN106244926A (en) A kind of containing vanadium steel used for vehicle transmission shaft and production method thereof
CN103695771A (en) 610MPa-tensile-strength hot-rolled high-strength steel sheet and production method thereof
CN109055651A (en) A method of 600MPa grades of carriage body steel of hot rolling thin gauge are produced completely without head bar strip continuous casting and rolling flow path based on ESP
CN103361552A (en) V-N microalloying 460MPa-level thick plate and manufacturing method thereof
CN103667907A (en) Hot-rolled high-strength sheet steel having tensile strength of 510MPa, and production method thereof
CN103667948B (en) A kind of Multiphase Steel and preparation method thereof
CN107904509A (en) A kind of Thin Specs 1180MPa grades of dual phase steels and its processing method
CN105950967A (en) Method for producing 500MPa level low alloy and high strength steel
CN101956141A (en) Low-cost non-quenched and tempered high-strength wear-resistant steal plate with yield strength of 780 MPa grade and manufacturing method thereof
CN109735765B (en) Large-sized, ultra-fine grain, high-strength and high-toughness spring steel and production method thereof
CN101974722A (en) Steel plate for manufacturing concrete mixer tank and production method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20111221