CN104477247A - Side wall inner plate for vehicle - Google Patents
Side wall inner plate for vehicle Download PDFInfo
- Publication number
- CN104477247A CN104477247A CN201410785094.8A CN201410785094A CN104477247A CN 104477247 A CN104477247 A CN 104477247A CN 201410785094 A CN201410785094 A CN 201410785094A CN 104477247 A CN104477247 A CN 104477247A
- Authority
- CN
- China
- Prior art keywords
- wall inner
- region
- side wall
- intensity
- inner plate
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
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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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to a side wall inner plate for a vehicle. The side wall inner plate for the vehicle comprises a side wall inner plate body and is characterized in that the upper part of a pillar B body is a hard region, the lower part of the pillar B body is a soft region, the hard region and the soft region are connected through a first transition region, the main body part of the side wall inner plate body is a hard region, the side wall inner plate body region positioned right under the soft region of the pillar B body is a soft region, the soft region and the main body part of the side wall inner plate body are connected by a second transition region, the second transition region is in a belt shape and has the width being about 50mm, and each hard region is martensite tissues, with the intensity being 1300 to 1500 MPa, obtained from ultra-high-intensity steel through heat forming; each soft region is ferrite and perlite tissues or bainite tissues, with the intensity being 500 to 700 MPa, obtained in the ultra-high-intensity steel heat forming process through slow cooling. The side wall inner plate has the advantages that the pillar B part has good intensity, and meanwhile, a pillar B has the controllable deformation; in addition, through the arrangement of the transition region between the pillar B and the side wall inner plate, the processing is convenient, and the intensity of the side wall can also be ensured.
Description
Technical field
The present invention relates to a kind of side-wall inner-plate of vehicle, belong to vehicle part technical field.
Background technology
Vehicle side is the key position that auto body manufactures, and its build guality directly has influence on outward appearance and the performance of automobile.Side-wall inner-plate is generally loop configuration; side in loop configuration is B post; the Main Function of B post can provide protection when there is side collision, and wish that B post produces controlled distortion and may protect passenger with chi when sideways collisions, is mainly used in energy-absorbing.But meanwhile, side-wall inner-plate itself needs again to ensure certain intensity.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of side-wall inner-plate of vehicle, B post part has good intensity, plays the effect of protection passenger, and B post has controlled distortion simultaneously; In addition, the setting of the transition region between B post and side-wall inner-plate, had not only been convenient to the intensity processing but also can ensure gusset.
According to technical scheme provided by the invention, the side-wall inner-plate of described vehicle, comprise side-wall inner-plate body, side-wall inner-plate body is car door closed-in construction, the side of this doorframe structure is B post body, the top of B post body is connected with the upper end of doorframe framework, and the bottom of B post body is connected with the lower end of doorframe framework; It is characterized in that: the top of described B post body is hard area, the bottom of B post body is soft district, is connected between hard area and soft district by First Transition district; The base portion of described side-wall inner-plate body is obtained by ultra-high-tensile steel heat forming technology, and intensity is the martensitic stucture of 1300 ~ 1500MPa; Side-wall inner-plate body regions immediately below the soft district being positioned at described B post body is soft district, is connected between this soft district and base portion of side-wall inner-plate body by the second transition region, and described second transition region is in banded, and width is about 50mm; Described hard area is obtained by ultra-high-tensile steel heat forming technology, and intensity is the martensitic stucture of 1300 ~ 1500MPa; Described soft district is in ultra-high-tensile steel heat forming technology, by cooling at a slow speed ferrite and pearlite tissue that the intensity obtained is 500 ~ 700MPa or being bainite structure.
Further, the soft district of described B post body accounts for 1/3 of B post body height.
Further, the height in described First Transition district is about 50mm.
The side-wall inner-plate of vehicle of the present invention; by the employing hard area, top of B post body; bottom adopts soft district, can provide protection on the one hand, and produce controlled distortion when sideways collisions to protect head of passenger injury-free as much as possible when there is side collision.In addition, the main body of side-wall inner-plate body adopts intensity to be the martensitic stucture of 1300 ~ 1500MPa, the part that side-wall inner-plate body is connected with the soft district of B post body is soft district, be connected by banded second transition region between this soft district and base portion of side-wall inner-plate body, can ensure to process in production process convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Figure 1: the side-wall inner-plate of described vehicle comprises side-wall inner-plate body 1, B post body 2, hard area 3, soft district 4, First Transition district 5, second transition region 6 etc.
As shown in Figure 1, the present invention includes side-wall inner-plate body 1, side-wall inner-plate body 1 is car door closed-in construction, and the side of this doorframe structure is B post body 2, the top of B post body 2 is connected with the upper end of doorframe framework, and the bottom of B post body 2 is connected with the lower end of doorframe framework; The top of described B post body 2 is the bottom of hard area 3, B post body 2 is soft district 4, is connected between hard area 3 and soft district 4 by First Transition district 5; Described hard area 3 is obtained by ultra-high-tensile steel heat forming technology, and intensity is the martensitic stucture of 1300 ~ 1500MPa; Described soft district 4 is in ultra-high-tensile steel heat forming technology, by cooling at a slow speed ferrite and pearlite tissue that the intensity obtained is 500 ~ 700MPa or being bainite structure; The base portion of described side-wall inner-plate body 1 is obtained by ultra-high-tensile steel heat forming technology, and intensity is the martensitic stucture of 1300 ~ 1500MPa; Side-wall inner-plate body 1 region immediately below the soft district 4 being positioned at described B post body 2 is soft district, is connected between this soft district and base portion of side-wall inner-plate body 1 by the second transition region 6; Described second transition region 6 is in banded, and width is about 50mm, to add man-hour more convenient;
The soft district 4 of described B post body 2 accounts for 1/3 of B post body 2 height;
The height in described First Transition district 5 is about 50mm.
The present invention is by the employing hard area, top of B post body, and bottom adopts soft district, can provide protection on the one hand, and produce controlled distortion when sideways collisions to protect head of passenger injury-free as much as possible when there is side collision.In addition, the main body of side-wall inner-plate body adopts intensity to be the martensitic stucture of 1300 ~ 1500MPa, the part that side-wall inner-plate body is connected with the soft district of B post body is soft district, be connected by banded second transition region between this soft district and base portion of side-wall inner-plate body, can ensure to process in production process convenient.
Manufacture method of the present invention, mainly comprises the following steps: profile tablet is put into heating furnace and heated austenitizing by (1), and in-furnace temperature is 900 DEG C, and time of heat is 5 minutes; (2) the profile tablet hot forming in a mold will heated; And quench in the hard area of the hard area of side-wall inner-plate body and B post body, obtain the martensitic stucture that intensity is 1300 ~ 1500MPa; Meanwhile, the side-wall inner-plate region immediately below the soft district of B post body and the soft district of B post body adopts Resistant heating or adopts the mode of insulation, and delay rate of cooling, Shi Ruan district cools at a slow speed and obtains ferrite and pearlite tissue or bainite structure.
Claims (3)
1. the side-wall inner-plate of a vehicle, comprise side-wall inner-plate body (1), side-wall inner-plate body (1) is car door closed-in construction, the side of this doorframe structure is B post body (2), the top of B post body (2) is connected with the upper end of doorframe framework, and the bottom of B post body (2) is connected with the lower end of doorframe framework; It is characterized in that: the top of described B post body (2) is hard area (3), the bottom of B post body (2) is soft district (4), is connected between hard area (3) and soft district (4) by First Transition district (5); The base portion of described side-wall inner-plate body (1) is obtained by ultra-high-tensile steel heat forming technology, and intensity is the martensitic stucture of 1300 ~ 1500MPa; Side-wall inner-plate body (1) region immediately below the soft district (4) being positioned at described B post body (2) is soft district, be connected by the second transition region (6) between this soft district and base portion of side-wall inner-plate body (1), described second transition region (6) is in banded, and width is about 50mm; Described hard area (3) is obtained by ultra-high-tensile steel heat forming technology, and intensity is the martensitic stucture of 1300 ~ 1500MPa; Described soft district (4) is in ultra-high-tensile steel heat forming technology, by cooling at a slow speed ferrite and pearlite tissue that the intensity obtained is 500 ~ 700MPa or being bainite structure.
2. the side-wall inner-plate of vehicle as claimed in claim 1, is characterized in that: the soft district (4) of described B post body (2) accounts for 1/3 of B post body (2) height.
3. the side-wall inner-plate of vehicle as claimed in claim 1, is characterized in that: the height of described First Transition district (5) is about 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410785094.8A CN104477247A (en) | 2014-12-17 | 2014-12-17 | Side wall inner plate for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410785094.8A CN104477247A (en) | 2014-12-17 | 2014-12-17 | Side wall inner plate for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104477247A true CN104477247A (en) | 2015-04-01 |
Family
ID=52751904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410785094.8A Pending CN104477247A (en) | 2014-12-17 | 2014-12-17 | Side wall inner plate for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104477247A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107662647A (en) * | 2016-07-29 | 2018-02-06 | 本特勒尔汽车技术有限公司 | Method for the column of motor vehicle and for manufacturing column |
| CN111361642A (en) * | 2020-03-17 | 2020-07-03 | 吉利汽车研究院（宁波）有限公司 | Side wall reinforcing plate assembly and vehicle with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020104591A1 (en) * | 2000-08-19 | 2002-08-08 | Ludger Gehringhoff | B-column for motor vehicle |
| CN101861265A (en) * | 2007-11-15 | 2010-10-13 | 耶斯塔姆普硬技术股份公司 | A B-pillar for a vehicle |
| CN102319835A (en) * | 2011-10-17 | 2012-01-18 | 机械科学研究总院先进制造技术研究中心 | Forming method of variable strength hot stamped piece and die |
| CN102481613A (en) * | 2009-09-01 | 2012-05-30 | 蒂森克虏伯钢铁欧洲股份公司 | Method and device for producing a metal component |
-
2014
- 2014-12-17 CN CN201410785094.8A patent/CN104477247A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020104591A1 (en) * | 2000-08-19 | 2002-08-08 | Ludger Gehringhoff | B-column for motor vehicle |
| CN101861265A (en) * | 2007-11-15 | 2010-10-13 | 耶斯塔姆普硬技术股份公司 | A B-pillar for a vehicle |
| CN102481613A (en) * | 2009-09-01 | 2012-05-30 | 蒂森克虏伯钢铁欧洲股份公司 | Method and device for producing a metal component |
| CN102319835A (en) * | 2011-10-17 | 2012-01-18 | 机械科学研究总院先进制造技术研究中心 | Forming method of variable strength hot stamped piece and die |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107662647A (en) * | 2016-07-29 | 2018-02-06 | 本特勒尔汽车技术有限公司 | Method for the column of motor vehicle and for manufacturing column |
| CN107662647B (en) * | 2016-07-29 | 2019-07-05 | 本特勒尔汽车技术有限公司 | Method for the column of motor vehicle and for manufacturing column |
| CN111361642A (en) * | 2020-03-17 | 2020-07-03 | 吉利汽车研究院（宁波）有限公司 | Side wall reinforcing plate assembly and vehicle with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150401 |