CN102794849B - Manufacturing method for sample of quickly forming instrument desk for airbag calibration - Google Patents
Manufacturing method for sample of quickly forming instrument desk for airbag calibration Download PDFInfo
- Publication number
- CN102794849B CN102794849B CN201210310373.XA CN201210310373A CN102794849B CN 102794849 B CN102794849 B CN 102794849B CN 201210310373 A CN201210310373 A CN 201210310373A CN 102794849 B CN102794849 B CN 102794849B
- Authority
- CN
- China
- Prior art keywords
- minutes
- instrument desk
- mould
- exemplar
- airbag
- 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.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000012948 isocyanate Substances 0.000 claims abstract description 9
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000741 silica gel Substances 0.000 claims abstract description 8
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000003754 machining Methods 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims description 31
- 238000002360 preparation method Methods 0.000 claims description 16
- 238000010348 incorporation Methods 0.000 claims description 12
- 230000007613 environmental effect Effects 0.000 claims description 11
- 229920005862 polyol Polymers 0.000 claims description 8
- 150000003077 polyols Chemical class 0.000 claims description 8
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 238000003801 milling Methods 0.000 abstract 1
- 150000005846 sugar alcohols Polymers 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 239000000047 product Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention relates to a manufacturing method for a sample of a quickly forming instrument desk for airbag calibration, which comprises the following steps: 1) analyzing a three-dimensional digital analog of the product, dividing into modules for machining and exporting the data of a numerical control machine tool; 2) milling splicing blocks in various shape on an ABS (Anti-lock Brake System) plate by the numerical control machine tool according to the data, splicing the splicing blocks into an instrument desk, and manually finishing, thereby finishing CNC (Computerized Numerical Control) manufacturing; 3) manufacturing a silica gel mould; and 4) manufacturing a quickly forming sample. The step 4) further comprises the following sub-steps: 41) mixing polyhydric alcohol liquid and isocyanate liquid at a weight ratio of 1:2 at room temperature, wherein the mixing time is 6.5 minutes to 10 minutes; 42) injecting the mixed liquid obtained from the step 41) into a vacuumized mould; and 43) heating and curing the mould processed in the step 42) and keeping the mould temperature at 60 DEG C, wherein the time for heating and curing is 8-10 minutes.
Description
Technical field
The present invention relates to technical field of vehicle, particularly relate to a kind of preparation method of the rapid shaping instrument desk exemplar for airbag calibration.
Background technology
The current instrument desk for airbag calibration is essentially the part that formal mould is produced.The formal mould of instrument desk needs through making in about 3 months, and this mold acceptance is qualified just can carry out the assembling of complete machine and carry out various examination afterwards.For the unreasonable part of the design found in examination, need to modify to original design, more corresponding mould to be modified.Revise product on mould, wait the laggard row calibration experiment of product.
Instrument desk is that in interior exterior trim, structure is the most complicated, the integrated maximum part of functional module, the fabrication cycle of its mould generally needs about 3 months, and the development cost of mould are large, at Amending design, cause a large amount of repetitive work in perfect frame and manufacture process, the manufacturing cycle of mould is lengthened, finally causes modification time to account for 20% ~ 30% of whole Production Time.And the update cost produced compared with multi-mould, the mould through constantly amendment can be subject to certain impact its service life, also will bear the risk of mould development failure.And usually rapid shaping exemplar can not meet the requirement of impact test in performance, normal data acquisition cannot be carried out.
Summary of the invention
In order to the instrument desk Mold Making cost solved for airbag calibration in prior art is high, expend time in length, and the problem of instrument desk rapid shaping exemplar collision performance deficiency, the invention provides a kind of rapid shaping instrument desk exemplar preparation method for airbag calibration.
In order to achieve the above object, the technical solution used in the present invention is: a kind of rapid shaping instrument desk exemplar preparation method for airbag calibration, comprises the following steps:
Step 1: the three-dimensional digital-to-analogue of product is analyzed, splits into the module of machining, and derive the data of Digit Control Machine Tool;
Step 2: Digit Control Machine Tool mills out ABS buttress the splicing block of each shape according to data, then each part is spliced into instrument desk, and complete CNC making through hand finish;
Step 3: silica gel mould makes;
Step 4: rapid shaping exemplar makes;
Following sub-step is specifically comprised in described step 4:
Step 41: under room temperature, mixes polyol liquid and isocyanates liquid according to the weight ratio of 1:2, and incorporation time is 6.5 minutes ~ 10 minutes;
Step 42: by step 41 gained mixed liquor under the environment of 25 DEG C ~ 35 DEG C, injects the mould vacuumized;
Step 43: by the mold heated solidification after described step 42, keep mold temperature to be 60 DEG C, the time of being heating and curing is 8 minutes ~ 10 minutes.
Further, in described step 41, the incorporation time of described mixed liquor under the environment of 25 DEG C is 10 minutes.
Further, in described step 41, the incorporation time of described mixed liquor under the environment of 35 DEG C is 6.5 minutes.
Further, described polyol liquid is viscosity is 1000mPa, proportion is the milky white liquid of 1.11.
Further, the viscosity that described isocyanates liquid is is 3000mPa, proportion is the milky white liquid of 1.17.
The invention has the beneficial effects as follows: adopt the preparation method of rapid shaping instrument desk exemplar of the present invention to make instrument desk exemplar, the time is short and can meet for collision performance during airbag calibration, reduces the cost that instrument desk makes.
Accompanying drawing explanation
Fig. 1 represents the Making programme figure of existing instrument desk exemplar;
Fig. 2 represents the preparation method flow chart of embodiment 1 instrument desk rapid shaping exemplar;
Fig. 3 represents the preparation method flow chart of embodiment 2 instrument desk rapid shaping exemplar;
Fig. 4 represents the preparation method flow chart of embodiment 3 instrument desk rapid shaping exemplar.
Detailed description of the invention
Be described in detail to structure of the present invention and principle below in conjunction with accompanying drawing, illustrated embodiment, only for explaining the present invention, not limits protection scope of the present invention with this.
As shown in Figure 1, a kind of rapid shaping instrument desk exemplar preparation method for airbag calibration, comprises the following steps the Making programme of existing instrument desk exemplar:
Step 1: data analysis, analyzes the three-dimensional digital-to-analogue of product, splits into the module of machining, and derive the data of Digit Control Machine Tool;
Step 2: (CNC is the abbreviation of computer digital control machine tool (Computer numericalcontrol), is a kind of by programme controlled automated machine tool to make CNC part.This control system can logically process has control coding or other symbolic instruction regulated procedures, by computer by its decoding, thus the action that lathe has been put rules into practice, by Tool in Cutting, blank material is processed into semi-finished product fabricated part), Digit Control Machine Tool is ABS plate (acrylonitrile/butadiene/styrene copolymer plate.English name Acrylonitrile-butdiene-styrene) splicing block of each shape is milled out according to data, then each part is spliced into instrument desk, and completes CNC through hand finish and make;
Step 3: silica gel mould makes;
Silica gel mould technological process is specific as follows:
Standby → framed making of female calibration → fixing female sample → preparation silica gel → silica gel vacuumizes → and silica gel perfusion → mould vacuumizes → mold cured → die sinking → complete.This process is prior art, and detailed process repeats no more.
Step 4: the making of rapid shaping instrument desk exemplar;
More accurately also repaired by hand will be carried out to shaping exemplar in order to make mould.
The step more than making instrument desk exemplar is all prior aries, does not repeat them here.
As shown in Figure 2, embodiment 1: the step that the exemplar of rapid shaping described in the present embodiment makes comprises following sub-step:
Step 41: under room temperature, polyol liquid and isocyanates liquid are mixed according to the weight ratio of 1:2, incorporation time is 10 minutes; In the present embodiment, described room temperature is 25 degree.
In order to avoid shaping exemplar can not to meet the problem of collision performance because of oxidation, so that affect the process of whole test and the expense of test, incorporation time also can be less than 10 minutes, but can not more than 10 minutes.
Step 42: step 41 gained mixed liquor is injected the mould vacuumized;
Mould is first put into baking oven, is vacuumized before injecting mould by described mixed liquor.
In order to ensure the performance of shaping exemplar, in the present embodiment, under the environmental condition identical with environmental condition when carrying out step 41 (under the environmental condition of 25 degree), step 41 gained mixed liquor is injected the mould vacuumized.
Step 43: by the mold heated solidification after described step 42, keep mold temperature to be 60 DEG C, the time of being heating and curing is 8 minutes ~ 10 minutes.
As shown in Figure 3, embodiment 2: the step that the exemplar of rapid shaping described in the present embodiment makes comprises following sub-step:
In the present embodiment, described room temperature is 35 degree.
Step 41: under room temperature, polyol liquid and isocyanates liquid are mixed according to the weight ratio of 1:2, incorporation time is 6.5 minutes;
In order to avoid shaping exemplar can not to meet the problem of collision performance because of oxidation, so that affect the process of whole test and the expense of test, incorporation time also can be less than 6.5 minutes, but can not more than 6.5 minutes.
Step 42: step 41 gained mixed liquor is injected the mould vacuumized;
In order to ensure the performance of shaping exemplar, in the present embodiment, under the environmental condition identical with environmental condition when carrying out step 41 (under the environmental condition of 35 degree), step 41 gained mixed liquor is injected the mould vacuumized.
Step 43: by the mold heated solidification after described step 42, keep mold temperature to be 60 DEG C, the time of being heating and curing is 8 minutes ~ 10 minutes.
As shown in Figure 4, embodiment 3: the step that the exemplar of rapid shaping described in the present embodiment makes comprises following sub-step:
In the present embodiment, described room temperature is 30 degree.
Step 41: under room temperature, polyol liquid and isocyanates liquid are mixed according to the weight ratio of 1:2, incorporation time is 8 minutes;
In order to avoid shaping exemplar can not to meet the problem of collision performance because of oxidation, so that affect the process of whole test and the expense of test, incorporation time also can be less than 8 minutes, but can not more than 8 minutes.
Step 42: step 41 gained mixed liquor is injected the mould vacuumized;
In order to ensure the performance of shaping exemplar, in the present embodiment, under the environmental condition identical with environmental condition when carrying out step 41 (under the environmental condition of 30 degree), step 41 gained mixed liquor is injected the mould vacuumized.
Step 43: by the mold heated solidification after described step 42, keep mold temperature to be 60 DEG C, the time of being heating and curing is 8 minutes ~ 10 minutes.
In this example, described polyol liquid is viscosity is 1000mPa, proportion (the dry completely closely knit weight of material and 4 DEG C time same volume pure water the ratio of weight, be called the proportion of this material) be 1.11 milky white liquid.
The viscosity that described isocyanates liquid is is 3000mPa, and proportion is the milky white liquid of 1.17.
The preparation method of rapid shaping instrument desk exemplar of the present invention is adopted to make instrument desk exemplar, can meet for collision performance during airbag calibration, the product of rapid shaping is utilized to carry out final assembly and various test, information interchange is carried out at any time with mold center, strive accomplishing that mould is disposable by checking and accepting, the test evaluation concurrent working of such Making mold and complete machine, accelerates the development progress of product greatly, completes rapidly instrument desk from the conversion being designed into operation.
In addition, the exemplar adopting preparation method of the present invention to be formed has obvious directive function for the design and manufaction process of mould.For specific product, the instrument desk Making mold time can shorten greatly, and the quality of instrument desk Making mold can be improved, and obtains final guarantee accordingly serve active influence to product quality.Designer constantly can improve design when designing, and optimizes structure.
The demarcation of air bag is higher for instrument physical property requirements, the impact test that can complete regulation, to gather relevant data.And the rapid shaping instrument desk exemplar after improvement has met national standard requirement in partial properties, and the calibration experiment that these performances also can complete instrument sees the following form:
The above is present pre-ferred embodiments, it should be pointed out that to those skilled in the art, and not departing under principle prerequisite of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as scope.
Claims (4)
1., for a rapid shaping instrument desk exemplar preparation method for airbag calibration, comprise the following steps:
Step 1: the three-dimensional digital-to-analogue of product is analyzed, splits into the module of machining, and derive the data of Digit Control Machine Tool;
Step 2: Digit Control Machine Tool mills out ABS buttress the splicing block of each shape according to data, then each part is spliced into instrument desk, and complete CNC making through hand finish;
Step 3: silica gel mould makes;
Step 4: rapid shaping exemplar makes;
It is characterized in that, in described step 4, specifically comprise following sub-step:
Step 41: under room temperature, mixes polyol liquid and isocyanates liquid according to the weight ratio of 1:2, and incorporation time is 6.5 minutes ~ 10 minutes;
Step 42: step 41 gained mixed liquor is injected the mould vacuumized;
Step 43: by the mold heated solidification after described step 42, keep mold temperature to be 60 DEG C, the time of being heating and curing is 8 ~ 10 minutes;
Described polyol liquid is viscosity is 1000mPa, proportion be 1.11 milky white liquid;
The viscosity that described isocyanates liquid is is 3000mPa, proportion is the milky white liquid of 1.17.
2. the rapid shaping instrument desk exemplar preparation method for airbag calibration according to claim 1, is characterized in that, in described step 41, the incorporation time of described mixed liquor under the environment of 25 DEG C is 10 minutes.
3. the rapid shaping instrument desk exemplar preparation method for airbag calibration according to claim 1, is characterized in that, in described step 41, the incorporation time of described mixed liquor under the environment of 35 DEG C is 6.5 minutes.
4. the rapid shaping instrument desk exemplar preparation method for airbag calibration according to claim 1, it is characterized in that, in described step 42, under the environmental condition identical with environmental condition when carrying out step 41, step 41 gained mixed liquor is injected the mould vacuumized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310373.XA CN102794849B (en) | 2012-08-28 | 2012-08-28 | Manufacturing method for sample of quickly forming instrument desk for airbag calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310373.XA CN102794849B (en) | 2012-08-28 | 2012-08-28 | Manufacturing method for sample of quickly forming instrument desk for airbag calibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102794849A CN102794849A (en) | 2012-11-28 |
| CN102794849B true CN102794849B (en) | 2015-07-01 |
Family
ID=47194268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210310373.XA Active CN102794849B (en) | 2012-08-28 | 2012-08-28 | Manufacturing method for sample of quickly forming instrument desk for airbag calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102794849B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2076001A (en) * | 1980-05-12 | 1981-11-25 | Basf Wyandotte Corp | High modulus microcellular polyurethane foams |
| US4376834A (en) * | 1981-10-14 | 1983-03-15 | The Upjohn Company | Polyurethane prepared by reaction of an organic polyisocyanate, a chain extender and an isocyanate-reactive material of m.w. 500-20,000 characterized by the use of only 2-25 percent by weight of the latter material |
| CN1227230A (en) * | 1998-12-28 | 1999-09-01 | 江苏省化工研究所 | Synthesis of foamed thermoplastic hard polyurethane plastic |
| CN101817916A (en) * | 2010-04-15 | 2010-09-01 | 上海子元汽车零部件有限公司 | Anti-fatigue urethane foam and preparation method thereof |
| CN102633982A (en) * | 2012-04-24 | 2012-08-15 | 奥斯汀新材料（张家港）有限公司 | Preparation method of antibacterial polyurethane automobile shock damping bumper block |
-
2012
- 2012-08-28 CN CN201210310373.XA patent/CN102794849B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2076001A (en) * | 1980-05-12 | 1981-11-25 | Basf Wyandotte Corp | High modulus microcellular polyurethane foams |
| US4376834A (en) * | 1981-10-14 | 1983-03-15 | The Upjohn Company | Polyurethane prepared by reaction of an organic polyisocyanate, a chain extender and an isocyanate-reactive material of m.w. 500-20,000 characterized by the use of only 2-25 percent by weight of the latter material |
| CN1227230A (en) * | 1998-12-28 | 1999-09-01 | 江苏省化工研究所 | Synthesis of foamed thermoplastic hard polyurethane plastic |
| CN101817916A (en) * | 2010-04-15 | 2010-09-01 | 上海子元汽车零部件有限公司 | Anti-fatigue urethane foam and preparation method thereof |
| CN102633982A (en) * | 2012-04-24 | 2012-08-15 | 奥斯汀新材料（张家港）有限公司 | Preparation method of antibacterial polyurethane automobile shock damping bumper block |
Non-Patent Citations (2)
| Title |
|---|
| 《仪表板、保险杠试制模具的制造工艺》;黄少文等;《汽车工艺与材料》;20100131(第1期);第38-41页 * |
| 《浇注型一步法生产汽车仪表板填充半硬泡》;马瑞;《聚氨酯工业》;19880430(第2期);第33,41页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102794849A (en) | 2012-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101339574B (en) | Concrete stirring vane die face design system and method based on springback compensation | |
| CN102169521B (en) | Design method for molded surface of automobile cover part die based on molded surface deformation compensation | |
| CN105599185B (en) | A kind of manufacturing method of light-conducting board mold | |
| CN102411641A (en) | Method for compensating rebounding error of automobile cover panel based on numerical simulation | |
| CN106945204A (en) | Correct the larger method of plastic mould product deformation | |
| CN101850496A (en) | Manufacturing process of automotive chassis longitudinal beam | |
| CN103093062A (en) | Parametric analysis method of effect of injection molding process to plastic part buckling deformation | |
| CN106994483A (en) | A kind of method of the accurate type face processing of Automobile Cover Drawing Die | |
| CN102267132B (en) | Normal flexible scribing method of complicated space curved surface | |
| CN107175479A (en) | Injection mold manufacture method | |
| CN113021816B (en) | Method and system for improving anti-deformation accuracy of injection molding product | |
| CN104657565B (en) | The hot-work die design method of plesiotype face water channel | |
| CN102794849B (en) | Manufacturing method for sample of quickly forming instrument desk for airbag calibration | |
| CN102794392B (en) | A kind of moulding mould based on fractal structure and formative method thereof | |
| CN103128174B (en) | Assembly die for cold stamping and forming of auto-body panels and design method of assembly die | |
| CN103128147B (en) | Method and system of resilience correcting and machining of beam mold | |
| CN105512426B (en) | A kind of design method reducing spider cold-forging forming blank discharge quantity | |
| CN103769487A (en) | Mould machining method and system | |
| CN105241742A (en) | Plastic-lock screw force test method and tester | |
| CN203331345U (en) | Mold additionally provided with mold kernel adjusting blocks | |
| Alam et al. | A Computer-aided Mold Design for Transfer Molding Process in Semiconductor Packaging Industry | |
| CN101569975A (en) | Method for changing die shape | |
| Chen et al. | Development and application of 3D printing technology in various fields | |
| CN201192884Y (en) | Vulcanizing device for medicinal rubber stopper | |
| CN107391878A (en) | A kind of product design method based on emulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING AUTOMOBILE RESEARCH GENERAL INSTITUTE CO., Free format text: FORMER OWNER: BAIC MOTOR CO., LTD. Effective date: 20131212 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100021 CHAOYANG, BEIJING TO: 101300 SHUNYI, BEIJING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20131212 Address after: 101300 Beijing, Shunyi District Shun Road, No. 25, room 5, 106 Applicant after: Beijing Automobile Research General Institute Co., Ltd. Address before: 100021 Chaoyang District, Warwick, Beijing, No. 10, Peng Long Building Applicant before: Beijing Automibile Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170417 Address after: 101300 Beijing city Shunyi District Shuanghe Street No. 99 Patentee after: BAIC MOTOR CORPORATION LTD. Address before: 101300 Beijing, Shunyi District Shun Road, No. 25, room 5, 106 Patentee before: Beijing Automobile Research General Institute Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190415 Address after: No.1 Tongxin Road, Zhaoquanying Town Zhaofeng Industrial Base, Shunyi District, Beijing 100130 Patentee after: Beijing automobile group cross-country car Co., Ltd. Address before: 101300 Shuanghe Street, Shunyi District, Beijing, 99 Patentee before: BAIC MOTOR CORPORATION LTD. |