CN1056535A - Steel for rolling wheel of automobile - Google Patents
Steel for rolling wheel of automobile Download PDFInfo
- Publication number
- CN1056535A CN1056535A CN 90103577 CN90103577A CN1056535A CN 1056535 A CN1056535 A CN 1056535A CN 90103577 CN90103577 CN 90103577 CN 90103577 A CN90103577 A CN 90103577A CN 1056535 A CN1056535 A CN 1056535A
- Authority
- CN
- China
- Prior art keywords
- steel
- rolling
- wheel
- automobile
- rolling wheel
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 238000005096 rolling process Methods 0.000 title claims abstract description 25
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 4
- 229910052702 rhenium Inorganic materials 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 229910052750 molybdenum Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 241001062472 Stokellia anisodon Species 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
The steel for rolling wheel of automobile has simple components and is easy to smelt and roll. Is particularly suitable for manufacturing the wheel spoke without the inner tube by adopting a rolling forming process. Because the proper key elements of Nb, Ti and Re are added into the steel, the steel not only has higher strength, but also has good plasticity and toughness. The steel is used for manufacturing wheel spokes of light buses and cars, and the service life of a fatigue rack of the wheel spokes is up to 47 ten thousand times.
Description
The present invention relates to a kind of steel material for rolling wheel of automobile and rolling technology thereof, be specially adapted to make the inner tube-free wheel spoke and the wheel rim of light bus and intermediate car, have composition simple, be easy to smelt and rolling, steel plate fatigue resistance height, characteristics such as flash welding performance and Extending flange Perfor are good.
Traditional automotive wheel has been inner tube of a tyre wheel, and more the wheel rim of its wheel adopts shaped steel to roll and be welded, and spoke then processes with shaped steel.This method technology falls behind, and spoke is low from great, surface irregularity, work-ing life.Along with the develop rapidly of automotive industry, various passenger vehicles are intermediate car lightness day by day especially, and this not only requires the processing and manufacturing precision height of wheel spoke, and still needs and seek new durable material.Before the present invention makes, the manufacturing process of a kind of advanced person's roll forming inner tube-free wheel spoke is come out, domestic still do not have a special-purpose grade of steel, substituting steel grade at present is 10Ti, but unfortunately since in this steel add-on of Ti more, smelt in addition and rolling method not very good, thereby make and have various rigid inclusiones such as TiN, TiS in its metallographic structure, this is totally unfavorable to its anti-fatigue performance, and the tired stand life-span only is about 240,000 times.Other steel grade of this purposes also is restricted because of variety of issue makes its tired stand life-span.
At above-mentioned situation, the present invention proposes a kind of new steel grade and rolling method thereof.This steel is easy to smelt in open hearth and converter, and by specific technology rolling after, its steel plate plasticity height, fatigue resistance is big, the tired stand life-span of moulding spoke can reach 470,000 times.It is (weight percent): C≤0.20% that the chemical ingredients of steel grade of the present invention is formed; Si≤0.6%; Mn≤2.0%; P≤0.10%; S≤0.50%; Al≤0.07%; Nb≤0.10%; Ti≤0.40%; Re≤0.25%; Under also can adding in the column element one or more: V≤0.20%; Mo≤0.60%; Cr≤0.10%; B≤0.01%, all the other are Fe and unavoidable impurities.
Selecting C≤0.20% in the steel grade of the present invention, mainly is the pearlitic content of control, improves the horizontal plasticity-of steel.The Si element can improve the intensity of steel, and its content is controlled between 0.17～0.60%, otherwise can reduce the plasticity and toughness of steel.Mn can also can play desoxydatoin as main solution strengthening element, and content requirement is intended to regulate the intensity rank of steel between 0.25～2.0%.For adapting to the requirement of roll forming, added key element Nb, Ti and Re in this steel grade in addition, Nb wherein and Ti add with the compound form, to postpone austenitic recrystallize, crystal grain thinning, the impact briquetting rate of raising steel plate.Re can generate dystectic rare-earth oxide sulfate with oxygen, the reaction of Salmon-Saxl in the steel, changes inclusion morphology, thereby improves the horizontal plastic property and the wide clod wash index of steel plate.Control the content of various elements except that palpus is strict for the various mechanical propertys that guarantee steel grade of the present invention, also must be rolled by specific steel rolling process.The rolling technology of steel grade of the present invention is: high-temperature final rolling, acceleration cooling, control coiling temperature.Be after steel ingot rolls into the slab that meets tandem rolling requirement specification in the rough rolling mill, slab soaking to 1290 again～1310 ℃, thus make tandem rolling two roller start rolling temperature 〉=1160 ℃, and final rolling temperature is more than 970 ℃, want the cooling of water curtain water spray after the finish to gauge, the temperature that guarantees to curl≤650 ℃.Only in this way could obtain good metallographic structure and have the material that higher-strength has good plasticity simultaneously concurrently.
These characteristics of the present invention and effect are described as follows in conjunction with the embodiments: certain automobile factory of China uses steel grade of the present invention, adopt punch forming process manufacturing " Santana " car wheel spoke, the chemical ingredients of its steel is (weight percent): C=0.07%, Si=0.25%, Mn=0.46%, P=0.007%, S=0.008%, Nb=0.011%, Ti=0.018%, Al=0.014%, Re=0.003%, and mechanical property is σ
s=340MPa, σ
b=440MPa, σ
5%=37%.180 ℃ of wide clod washes, d=0.5a is intact, in the roll extrusion process, the good toughness of material, springback capacity is little, and opening size is stable, and deep trouth convex closure place deflection is little, and whole process does not have fine fisssure and occurs.The tired stand life-span of spoke after the moulding is up to 470,000 times.
Claims (2)
1, a kind of steel material for rolling wheel of automobile, the weight composition that it is characterized in that its composition is: C≤0.20%, Si≤0.60%, Mn≤2.0%, P≤0.10%, S≤0.50%, Al≤0.07%, Nb≤0.10%, Ti≤0.40%, Re≤0.25%, also can add in the following element one or more: V≤0.20%, Mo≤0.60%, Cr≤0.10%, B≤0.01%, all the other are Fe and unavoidable impurities.
2, steel material for rolling wheel of automobile according to claim 1 is characterized in that its rolling technology is: tandem rolling blank intensification scope 1290～1310 ℃, tandem rolling two roller start rolling temperature 〉=1160 ℃ final rolling temperatures more than 970 ℃, coiling temperature≤650 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103577 CN1056535A (en) | 1990-05-15 | 1990-05-15 | Steel for rolling wheel of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103577 CN1056535A (en) | 1990-05-15 | 1990-05-15 | Steel for rolling wheel of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1056535A true CN1056535A (en) | 1991-11-27 |
Family
ID=4878153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90103577 Pending CN1056535A (en) | 1990-05-15 | 1990-05-15 | Steel for rolling wheel of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1056535A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374606C (en) * | 2005-07-30 | 2008-03-12 | 马鞍山钢铁股份有限公司 | Medium carbon low alloy steel for light high speed train wheel |
| CN100491573C (en) * | 2006-09-07 | 2009-05-27 | 武汉大学 | Microalloy cast steel in low carbon, and preparation method |
| CN100532615C (en) * | 2007-12-18 | 2009-08-26 | 本钢板材股份有限公司 | Vehicle wheel steel smelting method |
| CN102586678A (en) * | 2012-02-29 | 2012-07-18 | 首钢总公司 | Wheel steel for high-strength long-fatigue-life heavy-duty truck and treatment process thereof |
| CN107400824A (en) * | 2016-05-18 | 2017-11-28 | 鞍钢股份有限公司 | High-strength steel for automobile wheels with excellent stretch flangeability and production method thereof |
| CN107520581A (en) * | 2017-08-22 | 2017-12-29 | 苏州普热斯勒先进成型技术有限公司 | A kind of super-high strength steel wheel spoke and its processing method |
-
1990
- 1990-05-15 CN CN 90103577 patent/CN1056535A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374606C (en) * | 2005-07-30 | 2008-03-12 | 马鞍山钢铁股份有限公司 | Medium carbon low alloy steel for light high speed train wheel |
| CN100491573C (en) * | 2006-09-07 | 2009-05-27 | 武汉大学 | Microalloy cast steel in low carbon, and preparation method |
| CN100532615C (en) * | 2007-12-18 | 2009-08-26 | 本钢板材股份有限公司 | Vehicle wheel steel smelting method |
| CN102586678A (en) * | 2012-02-29 | 2012-07-18 | 首钢总公司 | Wheel steel for high-strength long-fatigue-life heavy-duty truck and treatment process thereof |
| CN107400824A (en) * | 2016-05-18 | 2017-11-28 | 鞍钢股份有限公司 | High-strength steel for automobile wheels with excellent stretch flangeability and production method thereof |
| CN107520581A (en) * | 2017-08-22 | 2017-12-29 | 苏州普热斯勒先进成型技术有限公司 | A kind of super-high strength steel wheel spoke and its processing method |
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