CN106541549B - A kind of preparation process of plastics crossbeam tubing string - Google Patents
A kind of preparation process of plastics crossbeam tubing string Download PDFInfo
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- CN106541549B CN106541549B CN201610896548.8A CN201610896548A CN106541549B CN 106541549 B CN106541549 B CN 106541549B CN 201610896548 A CN201610896548 A CN 201610896548A CN 106541549 B CN106541549 B CN 106541549B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76732—Mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76769—Moulded articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
- B29K2077/10—Aromatic polyamides [polyaramides] or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3008—Instrument panels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of preparation processes of plastics crossbeam tubing string, including：Sample crossbeam tubing string is first prepared, the Constrained mode of crossbeam tubing string and steering quality point is then analyzed, then analyzes the rigidity and intensity of crossbeam tubing string, then analyzes ODB intensity and lateral strength, if the Mechanical Data of crossbeam tubing string meets the requirements, is carried out in next step；The shape for determining crossbeam tubing string determines assembled part after the integrally formed part of crossbeam tubing string and mould；Determine crossbeam tubing string each section material；According to crossbeam tubing string configuration design mold, and mold is analyzed, obtains crossbeam tubing string injection forming mold；Injection molding obtains crossbeam tubing string product.The present invention determines the feasibility of product structure from product mechanical analysis, then determines product material, original iron material or aluminum-magnesium alloy material are replaced with plastic material, the requirement of product can be reached on mechanics.
Description
Technical field
The present invention relates to auto parts and components fields, and in particular to a kind of preparation process of plastics crossbeam tubing string.
Background technology
Instrument board is located at the front of driver, is furnished with trip odometer, speedometer, engine speed in general above
Table, fuel gauge and emergency warning lamp, signal lamp etc..Driver can not only understand the basic transport condition of vehicle by instrument board,
And air port, sound equipment, air-conditioning and light etc. can be controlled, so that it is guaranteed that while safe, enjoy more drive and find pleasure in
Interest.
In order to ensure the various instrument supported and part can run at high speed and vibrational state under work normally, instrument
The crossbeam tubing string of dash board and support instrument dash board must have enough rigidity, and external force pair when accident occurs to reduce
Just, the impact of copilot also requires instrument board to have good energy absorption capacity.And the synthesis mechanics of the crossbeam tubing string to instrument board
Performance has higher requirement.
Traditional crossbeam tubing string disclosure satisfy that crossbeam using the materials such as iron, almag, the intensity and rigidity of traditional material
Current automobile industry lightweight, small capital cost are not applied in the requirement of tubing string, but its cost is higher, and heavier-weight
It is required that.
Invention content
It is an object of the invention to overcome problem above of the existing technology, a kind of preparation of plastics crossbeam tubing string is provided
Technique, preparation process of the invention can prepare plastics crossbeam tubing string, and the plastics crossbeam tubing string is than traditional ferrous material weight
Amount is light, reduces cost.
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme：
A kind of preparation process of plastics crossbeam tubing string, includes the following steps：
101 product mechanical analyses of S：Sample crossbeam tubing string is first prepared, crossbeam tubing string and steering quality point are then analyzed
Constrained mode, then analyze the rigidity and intensity of crossbeam tubing string, ODB intensity and lateral strength then analyzed, if beam pipe
The Mechanical Data of column meets the requirements, and carries out in next step；
S 102 determines the shape of crossbeam tubing string, determines assembled part after the integrally formed part of crossbeam tubing string and mould；
S 103 determines crossbeam tubing string each section material；
104 mold analysis of S：According to the crossbeam tubing string configuration design mold in S102, and carry out mold flow analysis and mold
Structural analysis obtains crossbeam tubing string injection forming mold；
Injection molding in mold of the material in S 103 in S104 is obtained crossbeam tubing string product by S 105.
Further, 101 product mechanical properties of S analysis includes the following steps：
S 201 analyzes the Constrained mode of crossbeam tubing string and steering quality point, under real vehicle state, in steering matter
Heart position increases quality point, and first-order modal 54.4Hz, ＞ 33Hz meets the requirements；
The rigidity and intensity of 202 crossbeam tubing strings of S：First, under real vehicle state, steering centroid position apply X to
The power of 450N measures X to deformation 0.015, and X is 30000N/mm to rigidity, and X is more than 450N/mm to rigidity, and X is conformed to rigidity
It asks；
Secondly, under real vehicle state, in the power of steering centroid position application-Z-direction 550N, Z-direction deformation is measured
0.088, Z-direction rigidity is 6250N/mm, and Z-direction rigidity is more than 550N/mm, and Z-direction rigidity meets the requirements；
Then, under real vehicle state, apply the power of Z-direction 4000N, parts of plastics maximum stress in steering centroid position
For 566.8MPa, for maximum stress at pedal installation point, other regional stresses are less than 160MPa, structural break do not occur, by force
Degree meets the requirements；
S 203ODB intensity：Under real vehicle state, applies 9000N load in front panel installation site, big face do not occur
Product fracture, it is eligible；
204 lateral strengths of S：Apply 16000N loads in the left side of crossbeam tubing string, does not occur large area fracture, it is lateral strong
Degree meets the requirements.
Further, the shape of crossbeam tubing string determining in S 102 includes：Guan Liang, the Guan Liang be equipped with its one at
The first connector, the second connector, the third connector of type, first connector, the second connector, third connector are in institute
The homonymy of Guan Liang is stated, the end of second connector is equipped with U shape fixed seat, and the fixed seat is connect with described second
Part is embedded to be integrally formed, and the fixed seat connects steering wheel shaft；
Two free ends of the Guan Liang are respectively equipped with first support and second support, and the centre of the Guan Liang is equipped with middle control iron
Piece, the middle control iron plate are arranged between first connector and the second connector, and institute is assembled to after the middle control iron plate mould
It states on Guan Liang.
Further, in S103, the material that crossbeam tubing string is integrally formed part is GVL-6H, and GVL-6H includes aromatic series Buddhist nun
The Young's modulus of dragon and 60% long fibre, GVL-6H is 22000MPa, Poisson's ratio 0.4, density 1.69.
Further, in S 104, mold analysis：The volume of mold injection molding product is 1824.3cm2, product wall thickness
For 3mm, 3.5mm, mold includes two template dies, 12 needle-valve hot flow paths, and melting temperature is 295-335 DEG C when injection molding, mould
It is 100 DEG C to have temperature, projected area 1749.5cm2。
Further, S105 injection moldings include：
Various raw materials are carried out mixture by S 301, and are plasticized；
S 302 melts the raw material after plasticizing, and forms thin polymer film by die head；
Material is sent into double screw extruder and is squeezed out by S 303；
The mixing material squeezed out in double screw extruder is pressed into injection mold and carries out integrated injection molding by S 304.
The beneficial effects of the invention are as follows:
The preparation process of the present invention, the feasibility of product structure is determined from product mechanical analysis, then determines product material
Material, original iron material or aluminum-magnesium alloy material are replaced with plastic material, the requirement of product can be reached on mechanics.In reality
Under car state, apply power of the X to 450N in steering centroid position, measure X to deformation 0.015, X to rigidity be 30000N/
Mm, X are more than 450N/mm to rigidity, and X meets the requirements to rigidity；Under real vehicle state, in steering centroid position application-Z-direction
The power of 550N measures Z-direction deformation 0.088, and Z-direction rigidity is 6250N/mm, and Z-direction rigidity is more than 550N/mm, and Z-direction rigidity conforms to
It asks；Under real vehicle state, apply the power of Z-direction 4000N in steering centroid position, parts of plastics maximum stress is
566.8MPa, for maximum stress at pedal installation point, other regional stresses are less than 160MPa, structural break, intensity do not occur
It meets the requirements；ODB intensity：Under real vehicle state, applies 9000N load in front panel installation site, it is disconnected large area do not occur
It splits, it is eligible；Lateral strength：Apply 16000N loads in the left side of crossbeam tubing string, does not occur large area fracture, lateral strength
It meets the requirements.
The base pipe beam and holder part of the crossbeam tubular column structure of the present invention are existed using Shooting Technique, the structure is integrally formed
There is excellent in strength and rigidity, low warpage, high-dimensional stability, the weight ratio of plastics crossbeam tubing string under different temperature and humidities
Traditional material weight mitigates 40%, cost reduction 15%.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and after coordinating attached drawing to be described in detail such as.
The specific implementation mode of the present invention is shown in detail by following embodiment and its attached drawing.
Description of the drawings
Technical solution in technology in order to illustrate the embodiments of the present invention more clearly, in being described below to embodiment technology
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the present invention
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is present invention process flow chart；
Fig. 2 is the structural schematic diagram of the plastics crossbeam tubing string of the present invention；
1- pipe beams, the first connectors of 101-, the second connectors of 102-, 103- third connectors, 104- fixed seats, 105- connect
Connect iron plate, 201- first supports, 202- second supports control iron plate in 203-.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Shown in referring to Fig.1, a kind of preparation process of plastics crossbeam tubing string is disclosed in embodiment 1, is included the following steps：
101 product mechanical analyses of S：Sample crossbeam tubing string is first prepared, crossbeam tubing string and steering quality point are then analyzed
Constrained mode, then analyze the rigidity and intensity of crossbeam tubing string, ODB intensity and lateral strength then analyzed, if beam pipe
The Mechanical Data of column meets the requirements, and carries out in next step.
S 102 determines the shape of crossbeam tubing string, determines assembled part after the integrally formed part of crossbeam tubing string and mould.
S 103 determines crossbeam tubing string each section material.
104 mold analysis of S：According to the crossbeam tubing string configuration design mold in S102, and carry out mold flow analysis and mold
Structural analysis obtains crossbeam tubing string injection forming mold.
Injection molding in mold of the material in S 103 in S104 is obtained crossbeam tubing string product by S 105.
Wherein, 101 product mechanical properties of S analysis includes the following steps：
S 201 analyzes the Constrained mode of crossbeam tubing string and steering quality point, under real vehicle state, in steering matter
Heart position increases quality point, and first-order modal 54.4Hz, ＞ 33Hz meets the requirements.
The rigidity and intensity of 202 crossbeam tubing strings of S：First, under real vehicle state, steering centroid position apply X to
The power of 450N measures X to deformation 0.015, and X is 30000N/mm to rigidity, and X is more than 450N/mm to rigidity, and X is conformed to rigidity
It asks.
Secondly, under real vehicle state, in the power of steering centroid position application-Z-direction 550N, Z-direction deformation is measured
0.088, Z-direction rigidity is 6250N/mm, and Z-direction rigidity is more than 550N/mm, and Z-direction rigidity meets the requirements.
Then, under real vehicle state, apply the power of Z-direction 4000N, parts of plastics maximum stress in steering centroid position
For 566.8MPa, for maximum stress at pedal installation point, other regional stresses are less than 160MPa, structural break do not occur, by force
Degree meets the requirements.
S 203ODB intensity：Under real vehicle state, applies 9000N load in front panel installation site, big face do not occur
Product fracture, it is eligible.
204 lateral strengths of S：Apply 16000N loads in the left side of crossbeam tubing string, does not occur large area fracture, it is lateral strong
Degree meets the requirements.
In S103, the material that crossbeam tubing string is integrally formed part is GVL-6H, and GVL-6H includes aromatic nylon and 60%
The Young's modulus of long fibre, GVL-6H is 22000MPa, Poisson's ratio 0.4, density 1.69.
In S 104, mold analysis：The volume of mold injection molding product is 1824.3cm2, product wall thickness is 3mm,
3.5mm, mold include two template dies, and 12 needle-valve hot flow paths, melting temperature is 295-335 DEG C when injection molding, mold temperature
It is 100 DEG C, projected area 1749.5cm2。
S105 injection moldings include：
Various raw materials are carried out mixture by S 301, and are plasticized；
S 302 melts the raw material after plasticizing, and forms thin polymer film by die head；
Material is sent into double screw extruder and is squeezed out by S 303；
The mixing material squeezed out in double screw extruder is pressed into injection mold and carries out integrated injection molding by S 304.
Above-mentioned preparation process determines the feasibility of product structure from product mechanical analysis, then determines product material, uses
Plastic material replaces original iron material or aluminum-magnesium alloy material, and the requirement of product can be reached on mechanics.In real vehicle shape
Under state, apply power of the X to 450N in steering centroid position, measure X to deformation 0.015, X to rigidity be 30000N/mm, X
It is more than 450N/mm to rigidity, X meets the requirements to rigidity；Under real vehicle state, in steering centroid position application-Z-direction 550N
Power, measure Z-direction deformation 0.088, Z-direction rigidity is 6250N/mm, and Z-direction rigidity is more than 550N/mm, and Z-direction rigidity meets the requirements；
Under real vehicle state, apply the power of Z-direction 4000N in steering centroid position, parts of plastics maximum stress is 566.8MPa, maximum
For stress at pedal installation point, other regional stresses are less than 160MPa, structural break do not occur, intensity meets the requirements；ODB is strong
Degree：Under real vehicle state, applies 9000N load in front panel installation site, large area fracture do not occur, it is eligible；Side
To intensity：Apply 16000N loads in the left side of crossbeam tubing string, does not occur large area fracture, lateral strength meets the requirements.
Embodiment 2
The plastics crossbeam tubing string prepared in embodiment 1 is disclosed in embodiment 2, with reference to shown in Fig. 2 comprising：Pipe beam 1,
Above-mentioned pipe beam 1 is equipped with the first connector 101, the second connector 102, third connector 103, above-mentioned first connector 101, the
Two connectors 102, third connector 103 are in the homonymy of above-mentioned pipe beam 1, also, above-mentioned first connector 101, the second connector
102, third connector 103 and above-mentioned 1 same material of pipe beam, and be integrally formed.
Above-mentioned first connector 101, the second connector 102, third connector 103 are for control instrument in connecting or zero
Part is equipped with limit hole in the free end of above-mentioned first connector 101.
Above-mentioned second connector 102 is equipped with several pulling rivet bolts, and above-mentioned pulling rivet bolt and above-mentioned second connector 102 are embedding
Modeling is integrally formed.The end of above-mentioned second connector 102 is equipped with U shape fixed seat 104, above-mentioned fixed seat 104 and above-mentioned the
Two connectors 102 are embedded to be integrally formed, and above-mentioned fixed seat 104 connects steering wheel shaft.
Above-mentioned third connector 103 is equipped with connection iron plate 105, and above-mentioned connection iron plate 105 is to be assembled to above-mentioned the after mould
On three connectors 103.
It is respectively equipped with first support 201 and second support 202, the centre of above-mentioned pipe beam 1 in two free ends of above-mentioned pipe beam 1
Equipped with middle control iron plate 203, iron plate 203 is controlled among the above and is arranged between 201 and second connector 202 of above-mentioned first connector.On
It states first support 201 and second support 202 is connect with vehicle frame respectively.
In the present embodiment, it is assembled on above-mentioned pipe beam 1 after controlling 203 mould of iron plate among the above.
The base pipe beam and holder part of above-mentioned crossbeam tubular column structure are using Shooting Technique is integrally formed, and the structure is in difference
Temperature and humidity under have excellent in strength and rigidity, low warpage, high-dimensional stability, plastics crossbeam tubing string weight ratio tradition
Material weight mitigate 40%, cost reduction 15%.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (2)
1. a kind of preparation process of plastics crossbeam tubing string, which is characterized in that include the following steps：
S101 product mechanical analyses：Sample crossbeam tubing string is first prepared, the pact of crossbeam tubing string and steering quality point is then analyzed
Beam mode, then the rigidity and intensity of crossbeam tubing string are analyzed, ODB intensity and lateral strength are then analyzed, if crossbeam tubing string
Mechanical Data meets the requirements, and carries out in next step；
S102 determines the shape of crossbeam tubing string, determines assembled part after the integrally formed part of crossbeam tubing string and mould；
S103 determines crossbeam tubing string each section material；
S104 mold analysis：According to the crossbeam tubing string configuration design mold in S102, and carry out mold flow analysis and mould structure
Analysis obtains crossbeam tubing string injection forming mold；
Injection molding in mold of the material in S103 in S104 is obtained crossbeam tubing string product by S105；
The analysis of S101 product mechanical properties includes the following steps：
S201 analyzes the Constrained mode of crossbeam tubing string and steering quality point, under real vehicle state, in steering barycenter position
Increase quality point is set, first-order modal 54.4Hz, ＞ 33Hz meets the requirements；
The rigidity and intensity of S202 crossbeam tubing strings：First, under real vehicle state, apply X to 450N in steering centroid position
Power, measure X to deformation 0.015, X is 30000N/mm to rigidity, and X is more than 450N/mm to rigidity, and X meets the requirements to rigidity；
Secondly, under real vehicle state, in the power of steering centroid position application-Z-direction 550N, Z-direction deformation 0.088, Z-direction are measured
Rigidity is 6250N/mm, and Z-direction rigidity is more than 550N/mm, and Z-direction rigidity meets the requirements；
Then, under real vehicle state, apply the power of Z-direction 4000N in steering centroid position, parts of plastics maximum stress is
566.8MPa, for maximum stress at pedal installation point, other regional stresses are less than 160MPa, structural break, intensity do not occur
It meets the requirements；
S203ODB intensity：Under real vehicle state, applies 9000N load in front panel installation site, it is disconnected large area do not occur
It splits, it is eligible；
S204 lateral strengths：Apply 16000N loads in the left side of crossbeam tubing string, does not occur large area fracture, lateral strength meets
It is required that；
The shape of determining crossbeam tubing string includes in S102：Guan Liang, the Guan Liang are equipped with integrally formed first to be connect with its
Part, the second connector, third connector, first connector, the second connector, third connector are same the Guan Liang's
The end of side, second connector is equipped with U shape fixed seat, the fixed seat and the embedded one of second connector
Molding, the fixed seat connect steering wheel shaft；
Two free ends of the Guan Liang are respectively equipped with first support and second support, and the centre of the Guan Liang is equipped with middle control iron plate,
The middle control iron plate is arranged between first connector and the second connector, and the pipe is assembled to after the middle control iron plate mould
Liang Shang；
In S103, the material that crossbeam tubing string is integrally formed part is GVL-6H, and GVL-6H includes that aromatic nylon and 60% length are fine
The Young's modulus of dimension, GVL-6H is 22000MPa, Poisson's ratio 0.4, density 1.69；
In S104, mold analysis：The volume of mold injection molding product is 1824.3cm2, product wall thickness is 3mm, 3.5mm, mold
Including two template dies, 12 needle-valve hot flow paths, melting temperature is 295-335 DEG C when injection molding, and mold temperature is 100 DEG C, is thrown
Shadow area is 1749.5cm2。
2. the preparation process of plastics crossbeam tubing string according to claim 1, which is characterized in that S105 injection moldings include：
Various raw materials are carried out mixture by S301, and are plasticized；
S302 melts the raw material after plasticizing, and forms thin polymer film by die head；
Material is sent into double screw extruder and is squeezed out by S303；
The mixing material squeezed out in double screw extruder is pressed into injection mold and carries out integrated injection molding by S304.
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| CN201610896548.8A CN106541549B (en) | 2016-10-14 | 2016-10-14 | A kind of preparation process of plastics crossbeam tubing string |
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| CN201610896548.8A CN106541549B (en) | 2016-10-14 | 2016-10-14 | A kind of preparation process of plastics crossbeam tubing string |
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| CN106541549B true CN106541549B (en) | 2018-08-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107160637A (en) * | 2017-07-14 | 2017-09-15 | 苏州恒源盛模塑有限公司 | A kind of preparation technology of Plastic Instrument Board crossbeam assembly |
| CN109720419A (en) * | 2019-02-22 | 2019-05-07 | 广州市银宝山新汽车零部件有限公司 | Dashboard cross member and preparation method thereof |
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| CN106256670A (en) * | 2015-06-16 | 2016-12-28 | 华晨汽车集团控股有限公司 | A kind of optimization method of fascia board girder |
| CN205256458U (en) * | 2015-12-14 | 2016-05-25 | 常州神鹰碳塑复合材料有限公司 | Carbon -fibre composite auto steering supports assembly |
| CN105965757A (en) * | 2016-05-19 | 2016-09-28 | 江苏新昌汽车部件有限公司 | Injection molding method of framework instrument panel of pipe beam insert |
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