CN107826169B - Automobile B-pillar reinforcing plate and manufacturing method thereof - Google Patents
Automobile B-pillar reinforcing plate and manufacturing method thereof Download PDFInfo
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- CN107826169B CN107826169B CN201711040016.5A CN201711040016A CN107826169B CN 107826169 B CN107826169 B CN 107826169B CN 201711040016 A CN201711040016 A CN 201711040016A CN 107826169 B CN107826169 B CN 107826169B
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 183
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 41
- 239000004917 carbon fiber Substances 0.000 claims abstract description 41
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000002131 composite material Substances 0.000 claims abstract description 32
- 239000011257 shell material Substances 0.000 claims description 75
- 239000003822 epoxy resin Substances 0.000 claims description 15
- 229920000647 polyepoxide Polymers 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 238000001721 transfer moulding Methods 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 238000004026 adhesive bonding Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 2
- 230000000452 restraining effect Effects 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 59
- 238000005516 engineering process Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 239000004033 plastic Substances 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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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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- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
Abstract
The invention discloses an automobile B-pillar reinforcing plate and a manufacturing method thereof, and belongs to the field of automobile parts. This car B post reinforcing plate includes: the reinforcing plate shell and the inner layer reinforcing plate. Wherein, the middle part of reinforcing plate shell is provided with the open slot. The inner-layer reinforcing plate is fixed in an open slot of the reinforcing plate shell and is made of carbon fiber composite material. The automobile B-column reinforcing plate provided by the invention not only reduces the space occupied by the inner layer reinforcing plate on the reinforcing plate shell, but also has the characteristics of strong shock resistance, high strength and light weight, and ensures that the automobile B-column reinforcing plate is not easy to deform when the side surface of an automobile body is collided, thereby avoiding the injury to personnel in the automobile, and simultaneously ensuring that the automobile door can be normally opened and ensuring that the personnel in the automobile can smoothly escape.
Description
Technical Field
The invention relates to the field of automobile parts, in particular to an automobile B-pillar reinforcing plate and a manufacturing method thereof.
Background
The automobile body is provided with an automobile A column, an automobile B column and an automobile C column from front to back in sequence so as to support the automobile body and protect personnel in the automobile. Among them, the B-pillar of the vehicle is located between the front seat and the rear seat of the cockpit, extends from the roof to the underbody, and is generally provided as an integral reinforcement plate structure, which is called a B-pillar reinforcement plate of the vehicle. When the side surface of the automobile body is collided, the B-column reinforcing plate of the automobile plays an important role in protecting people in the automobile. However, the reinforcing plate for the B-pillar of the automobile generally has heavier mass, and cannot meet the requirements of light weight of the automobile and the purposes of energy conservation and emission reduction, so that the mass of the reinforcing plate for the B-pillar of the automobile needs to be reduced.
In the prior art, a high-strength steel plate is subjected to hot press forming to obtain an automobile B-pillar reinforcing plate with lighter weight. In the process, the strength of the high-strength steel plate is lost after being heated.
The inventor finds that the prior art has at least the following problems:
because the prior art alleviates the quality of car B post reinforcing plate with the mode of sacrificing intensity, consequently, when the side of automobile body suffered the collision, this car B post reinforcing plate more takes place to warp, not only can cause the injury to personnel in the car, makes the door unable normal opening moreover easily, leads to personnel in the car can't flee.
Disclosure of Invention
In order to solve the technical problem, the embodiment of the invention provides an automobile B-pillar reinforcing plate and a manufacturing method thereof. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides an automobile B-pillar reinforcement plate, including: the middle part of the reinforcing plate shell is provided with an open slot;
the automobile B-pillar reinforcement plate further comprises: an inner layer reinforcing plate;
the inner-layer reinforcing plate is fixed in an open slot of the reinforcing plate shell and is made of carbon fiber composite materials.
Specifically, the inner-layer reinforcing plate is preferably fixed in an opening groove of the reinforcing plate shell in a gluing manner.
Specifically, the thickness of the adhesive layer between the reinforcing plate shell and the inner reinforcing plate is preferably 0.1mm-0.2 mm.
Specifically, preferably, two ends of the reinforcing plate shell are respectively used for being connected with the roof and the bottom of a car body, and the thicknesses of the reinforcing plate shell are respectively 1mm-1.5 mm;
the thickness of the inner layer reinforcing plate is 2mm-2.5 mm.
Specifically, preferably, the reinforcing plate outer shell is provided with a connecting hole, and the connecting hole is used for being matched with a fastener so that the reinforcing plate outer shell is fixed on the body of the automobile.
In a second aspect, the present invention further provides a manufacturing method of the above automobile B-pillar reinforcement plate, where the manufacturing method includes:
performing punch forming on the shell material of the reinforcing plate to obtain the shell of the reinforcing plate;
forming the carbon fiber composite material by using a resin transfer molding technology to obtain an inner-layer reinforcing plate;
and fixing the inner-layer reinforcing plate in an open slot of the reinforcing plate shell to obtain the automobile B-pillar reinforcing plate.
Specifically, as a preferable mode, the forming of the carbon fiber composite material by using the resin transfer molding technology to obtain the inner-layer reinforcing plate includes:
laying a carbon fiber composite in a mold and closing the mold;
and adding epoxy resin and a curing agent in a preset proportion into the die to form the cured inner-layer reinforcing plate.
Specifically, the using amount ratio of the carbon fiber composite material to the epoxy resin is preferably 5-6: 4-5.
Specifically, the amount ratio of the epoxy resin to the curing agent is preferably 5-6: 4-5.
In particular, preferably, the carbon fiber composite material is laid in the mould with 10-12 layers.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the automobile B-column reinforcing plate provided by the embodiment of the invention, based on the characteristics of strong shock resistance, high specific strength and light weight of carbon fiber composite materials, the inner-layer reinforcing plate is arranged, the material of the inner-layer reinforcing plate is set to be the carbon fiber composite materials, and the inner-layer reinforcing plate is fixed in the open slot of the reinforcing plate shell, so that the space occupied by the inner-layer reinforcing plate on the reinforcing plate shell is reduced, the automobile B-column reinforcing plate has the characteristics of strong shock resistance, high strength and light weight, and further, when the side face of an automobile body is collided, the automobile B-column reinforcing plate is prevented from being deformed easily, the injury to personnel in the automobile is avoided, meanwhile, the automobile door can be normally opened, and the smooth escape of the personnel in the automobile is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an automobile B-pillar reinforcing plate according to an embodiment of the present invention.
The reference numerals denote:
1 a shell of a reinforcing plate is arranged,
101 are connected to the holes 101,
2 inner layer reinforcing plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In a first aspect, an embodiment of the present invention provides an automobile B-pillar stiffener, as shown in fig. 1, the automobile B-pillar stiffener includes: a reinforcing plate outer shell 1 and an inner layer reinforcing plate 2. Wherein, the middle part of the reinforcing plate shell 1 is provided with an open slot. The inner layer reinforcing plate 2 is fixed in an open slot of the reinforcing plate shell 1 and is made of carbon fiber composite material.
According to the automobile B-column reinforcing plate provided by the embodiment of the invention, based on the characteristics of strong shock resistance, high specific strength and light weight of carbon fiber composite materials, the inner reinforcing plate 2 made of the carbon fiber composite materials is arranged and fixed in the open slot of the reinforcing plate shell 1, so that the space occupied by the inner reinforcing plate 2 on the reinforcing plate shell 1 is reduced, and the automobile B-column reinforcing plate has the characteristics of strong shock resistance, high strength and light weight, so that when the side face of an automobile body is collided, the automobile B-column reinforcing plate is not easy to deform, the injury to people in an automobile is avoided, meanwhile, the automobile door can be normally opened, and the people in the automobile can smoothly escape.
In order to save cost while ensuring that the automobile B-pillar reinforcing plate has high strength, the material of the reinforcing plate shell 1 can be steel.
In order to ensure that the reinforcing plate shell 1 and the inner-layer reinforcing plate 2 are connected and fastened and have good sealing performance and corrosion resistance after being connected, the reinforcing plate shell 1 is fixed in an opening groove of the inner-layer reinforcing plate 2 in a gluing mode.
When the reinforcing plate shell 1 and the inner layer reinforcing plate 2 are glued, the reinforcing plate shell 1 and the inner layer reinforcing plate 2 are only required to be glued together by using an adhesive. It can be seen that the bonding is not only simple to operate, but also can be applicable to the connection between two different materials, and simultaneously, the bonding is not required to be carried out under the high-temperature and high-pressure conditions, so that the reinforcing plate shell 1 and the inner reinforcing plate 2 are prevented from deforming after the bonding.
The adhesive is conventional in the art and is commercially available to those skilled in the art, for example, the adhesive model DP420 is manufactured and sold by Minnesota mining and manufacturing.
Further, in order to ensure that the reinforcing plate casing 1 and the inner reinforcing plate 2 are connected and fastened, and save cost, the thickness of the adhesive layer between the reinforcing plate casing 1 and the inner reinforcing plate 2 is set to be 0.1mm-0.2mm, for example, the thickness may be 0.12mm, 0.15mm, 0.18mm, and the like.
Wherein, the thickness of the cementing layer can be understood as: the thickness of the adhesive used in the gluing process.
In order to save the space occupied by the automobile B-column reinforcing plate on the premise of ensuring the safety performance of the automobile B-column reinforcing plate, two ends of a reinforcing plate shell 1 are respectively used for being connected with the roof and the bottom of an automobile body, and the thicknesses of the reinforcing plate shell and the automobile body are respectively 1mm-1.5 mm. For example, the thickness may be 1.2mm, 1.3mm, etc.; the thickness of the inner-layer reinforcing plate 2 is set to 2mm to 2.5mm, and for example, the thickness may be 2.2mm, 2.3mm, or the like.
In order to improve the stability of the B-pillar reinforcement of the automobile on the side body of the automobile, a connection hole 101 (see fig. 1) is provided on the reinforcement shell 1, and the connection hole 101 is used for being matched with a fastener to fix the reinforcement shell 1 on the body of the automobile.
Specifically, the side of the automobile body is of a cavity structure, and when the automobile B-pillar reinforcement plate is applied, the automobile B-pillar reinforcement plate is mounted on the side of the automobile body only through the connecting hole 101 by using a fastener. The fastener may be various, for example, a bolt, a screw, or the like. The structure of the connection hole 101 may be various, for example, the connection hole 101 may be an internal threaded hole, a square hole, a key hole, or the like.
When the fastening member is a bolt and the connection hole 101 is an internally threaded hole, the fastening member may be directly screwed to the connection hole 101. When the fastener is a bolt and the connecting hole 101 is not an internal threaded hole, only a nut matched with the bolt is mounted on the connecting hole 101, and then the bolt and the connecting hole are in threaded connection.
In a second aspect, an embodiment of the present invention further provides a manufacturing method of the above automobile B-pillar reinforcement plate, where the manufacturing method includes:
and (3) performing punch forming on the shell material of the reinforcing plate to obtain the reinforcing plate shell 1.
The carbon fiber composite material is molded by Resin Transfer Molding (RTM) technology to obtain the inner-layer reinforcing plate 2.
And (3) fixing the inner-layer reinforcing plate 2 in an open slot of the reinforcing plate shell 1 to obtain the automobile B-pillar reinforcing plate.
According to the manufacturing method of the automobile B-column reinforcing plate, the reinforcing plate shell 1 is obtained by performing punch forming on the reinforcing plate shell material, so that the utilization rate of the reinforcing plate shell material can be improved, the production cost is reduced, and the reinforcing plate shell 1 obtained by punch forming is light in weight and good in rigidity.
The inner-layer reinforcing plate 2 is obtained by forming the carbon fiber composite material by using the resin transfer molding technology, so that the epoxy resin is fully blended into the carbon fiber composite material, the utilization rate of the epoxy resin is improved, the production cost is reduced, and the inner-layer reinforcing plate 2 obtained by forming the carbon fiber composite material by using the resin transfer molding technology is good in quality, high in smoothness and high in size precision.
Wherein, carry out stamping forming to reinforcing plate shell material and refer to: the reinforcing plate shell material is placed in a mold and subjected to plastic deformation by applying an external force thereto using a press machine to obtain the reinforcing plate shell 1 of a desired shape and size.
In order to ensure the strength of the gusset plate shell 1, the material of the gusset plate shell may be steel, in particular DC04 steel for deep drawing.
Further, the carbon fiber composite material is molded by using a resin transfer molding technology to obtain the inner-layer reinforcing plate, which comprises the following steps:
laying the carbon fiber composite material in a mold, and closing the mold.
A predetermined ratio of epoxy resin and curing agent is added to the mold to form the cured inner-layer reinforcing plate 2.
Specifically, after the cured inner-layer reinforcing plate 2 is formed, it is only necessary to perform a mold release treatment to obtain the desired inner-layer reinforcing plate 2.
The carbon fiber composite material is laid in the die, and the epoxy resin and the curing agent with a preset proportion are added into the die, so that the strength of the inner-layer reinforcing plate 2 is effectively improved.
The carbon fiber composite material may be a carbon fiber cloth, which is common in the art and is commercially available to those skilled in the art, for example, a carbon fiber cloth manufactured and sold by dongli group with a model number of T300.
Further, in order to ensure that the inner-layer reinforcing plate 2 has good impact resistance, high strength and high rigidity, 10 to 12 layers of carbon fiber cloth may be laid when the carbon fiber cloth is laid in the mold, for example, 10, 11 and 12 layers may be laid. Specifically, when the carbon fiber cloth is laid into 11 layers, the lay angle is 90 °, 45 °, 0 °, -45 °, 0 °, 45 °, and 45 ° sequentially from bottom to top. Wherein, the layering angle can be understood as: the carbon fiber cloth and the included angle of the central axis of the die.
In order to ensure the curing effect of the carbon fiber composite material and improve the strength and stability of the inner-layer reinforcing plate 2, the dosage ratio of the carbon fiber composite material to the epoxy resin is 5-6:4-5, for example, the dosage ratio can be: 5.5:4.5, 5:4, 5:4.5, etc.
In order to make the strength of the inner-layer reinforcing plate 2 higher after curing and molding, the dosage ratio of the epoxy resin to the curing agent is set to be 5-6: 4-5. For example, the dosage ratio may be: 5.5:4.5, 5:4, 5:4.5, etc.
The present invention will be further described below by way of specific examples.
In the following examples, those whose operations are not subject to the conditions indicated, are carried out according to the conventional conditions or conditions recommended by the manufacturer. The raw materials are conventional products which can be obtained commercially by manufacturers and specifications.
Example 1
The embodiment provides an automobile B-pillar reinforcing plate, which is manufactured by the following method:
the DC04 steel is placed in a reinforcing plate shell die for punch forming, and the reinforcing plate shell 1 with the thickness of 1.2mm is obtained.
The carbon fiber composite material is molded by utilizing a resin transfer molding technology, the carbon fiber cloth with the model number of T300 is laid into 11 layers in an inner-layer reinforcing plate mold, and the laying angles of the 11 layers are sequentially 90 degrees, 45 degrees, 0 degrees, 45 degrees, 0 degrees, 45 degrees and 45 degrees from bottom to top. Subsequently, the mold is closed, epoxy resin and curing agent with the dosage ratio of 5.5:4.5 and the models of EPON135 and EPON1366 are injected into the inner-layer reinforcing plate mold respectively to form a cured inner-layer reinforcing plate 2, and the cured inner-layer reinforcing plate 2 is demolded to obtain the inner-layer reinforcing plate 2 with the thickness of 2.2 mm.
Subsequently, place inlayer stiffening plate 2 in the open slot of stiffening plate shell 1 to use DP420 adhesive to bond stiffening plate shell 1 and inlayer stiffening plate 2 together, form the cementing layer that thickness is 0.15mm between stiffening plate shell 1 and inlayer stiffening plate 2, and then obtain car B post reinforcing plate.
The bending impact resistance test is respectively carried out on the metal material automobile B column reinforcing plate and the composite material B column reinforcing plate as follows, specifically: and (3) constraining two ends of the B-pillar reinforcing plate, designing a steel body with the diameter of 200mm, the length of 550mm and the mass of 500kg in the middle of the B-pillar reinforcing plate of the automobile, and enabling the steel body to impact the B-pillar reinforcing plate at the speed of 10m/s from a position 0.5m away from the middle of the B-pillar reinforcing plate of the automobile. The parameters of the metal material automobile B column reinforcing plate and the composite material B column reinforcing plate after the bending impact resistance test are shown in the following table:
according to the parameters, the automobile B-column reinforcing plate provided by the embodiment of the invention has high strength and light weight, and can meet the requirements of users on the safety performance of automobiles.
Example 2
The DC04 steel is placed in a reinforcing plate shell die for punch forming, and the reinforcing plate shell 1 with the thickness of 1mm is obtained.
The carbon fiber composite material is molded by utilizing a resin transfer molding technology, the carbon fiber cloth with the model number of T300 is laid into 10 layers in an inner-layer reinforcing plate mold, and the laying angles of the carbon fiber cloth are 90 degrees, 45 degrees, 0 degrees, 45 degrees, 0 degrees and 45 degrees from bottom to top in sequence. Subsequently, the mold is closed, epoxy resin and a curing agent which are used in a ratio of 5:4 and are respectively EPON135 and EPON1366 are injected into the inner-layer reinforcing plate mold to form a cured inner-layer reinforcing plate 2, and the cured inner-layer reinforcing plate 2 is demolded to obtain the inner-layer reinforcing plate 2 with the thickness of 2 mm.
Subsequently, place inlayer stiffening plate 2 in the open slot of stiffening plate shell 1 to use DP420 adhesive to bond stiffening plate shell 1 and inlayer stiffening plate 2 together, form the cementing layer that thickness is 0.1mm between stiffening plate shell 1 and inlayer stiffening plate 2, and then obtain car B post reinforcing plate.
Example 3
The DC04 steel is placed in a reinforcing plate shell die for punch forming, and the reinforcing plate shell 1 with the thickness of 1.5mm is obtained.
The carbon fiber composite material is molded by utilizing a resin transfer molding technology, the carbon fiber cloth with the model number of T300 is laid into 12 layers in an inner layer reinforcing plate mold, and the laying angles of the carbon fiber cloth are 90 degrees, 45 degrees, 0 degrees, 45 degrees, 0 degrees, 45 degrees and 45 degrees from bottom to top in sequence. Subsequently, the mold is closed, epoxy resin and a curing agent are injected into the inner-layer reinforcing plate mold according to the dosage ratio of 6:5, the models of the epoxy resin and the curing agent are EPON135 and EPON1366 respectively, a cured inner-layer reinforcing plate 2 is formed, and the cured inner-layer reinforcing plate 2 is demolded, so that the inner-layer reinforcing plate 2 with the thickness of 2.5mm is obtained.
Subsequently, place inlayer stiffening plate 2 in the open slot of stiffening plate shell 1 to use DP420 adhesive to bond stiffening plate shell 1 and inlayer stiffening plate 2 together, form the cementing layer that thickness is 0.2mm between stiffening plate shell 1 and inlayer stiffening plate 2, and then obtain car B post reinforcing plate.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. An automotive B-pillar reinforcement comprising: the reinforcing plate shell (1) is characterized in that an open slot is formed in the middle of the reinforcing plate shell (1), the reinforcing plate shell (1) is formed in a stamping mode, two ends of the reinforcing plate shell (1) are respectively used for being connected with the roof and the bottom of an automobile body, the thickness of the reinforcing plate shell (1) is 1.2mm, a connecting hole (101) is formed in the reinforcing plate shell (1), the connecting hole (101) is used for being matched with a fastener, the reinforcing plate shell (1) is fixed on the automobile body of an automobile, the connecting hole (101) is an internal thread hole, a square hole or a key hole, and the reinforcing plate shell (1) is made of DC04 steel for deep drawing;
the automobile B-pillar reinforcement plate further comprises: inner stiffening plate (2), inner stiffening plate (2) utilize resin transfer molding technique to take shape carbon-fibre composite, the carbon-fibre composite of inner stiffening plate (2) adopts following mode to form:
laying 11 layers of carbon fiber cloth with the model number of T300 in a mould, wherein the laying angle of the carbon fiber cloth is sequentially 90 degrees, 45 degrees, 0 degree, 45 degrees, 0 degree, 45 degrees and 45 degrees from bottom to top; closing the mold, injecting epoxy resin and a curing agent with the dosage ratio of 5.5:4.5 and the models of EPON135 and EPON1366 respectively into the mold, and curing to form the inner-layer reinforcing plate (2) with the thickness of 2.2 mm;
the inner-layer reinforcing plate (2) is fixed in an open slot of the reinforcing plate shell (1) in a gluing mode, the reinforcing plate shell (1) and the inner-layer reinforcing plate (2) are glued together by using DP420 adhesive, so that a gluing layer is formed between the reinforcing plate shell (1) and the inner-layer reinforcing plate (2), the inner-layer reinforcing plate (2) is attached to and connected with the opposite side face of the reinforcing plate shell (1), the space occupied by the inner-layer reinforcing plate (2) on the reinforcing plate shell (1) is reduced, and the thickness of the gluing layer is 0.15 mm;
restraining two ends of a B-pillar reinforcing plate, designing a steel body with the diameter of 200mm, the length of 550mm and the mass of 500kg in the middle of the B-pillar reinforcing plate of an automobile, enabling the steel body to impact the B-pillar reinforcing plate at the speed of 10m/s from a position 0.5m away from the middle of the B-pillar reinforcing plate of the automobile, after a bending impact resistance test, enabling the maximum deformation amount of the B-pillar reinforcing plate formed by the inner-layer reinforcing plate (2) and the reinforcing plate shell (1) to be 11.9mm, enabling the bearable maximum stress of the B-pillar reinforcing plate formed by the inner-layer reinforcing plate (2) and the reinforcing plate shell (1) to be 653Mpa, and enabling the mass of the B-pillar reinforcing plate formed by the inner-layer reinforcing plate (2) and the reinforcing plate shell (1) to be 3.3 kg.
2. The method of manufacturing an automotive B-pillar reinforcement panel of claim 1, comprising:
performing punch forming on the shell material of the reinforcing plate to obtain a reinforcing plate shell (1);
laying a carbon fiber composite material in a mold, closing the mold, laying 11 layers of the carbon fiber composite material in the mold, wherein the laying angle of the carbon fiber composite material is sequentially 90 degrees, 45 degrees, 0 degrees, 45 degrees, 0 degrees, 45 degrees and 45 degrees from bottom to top;
adding epoxy resin and a curing agent in a preset proportion into the mould to form a cured inner-layer reinforcing plate (2);
and fixing the inner-layer reinforcing plate (2) in an open slot of the reinforcing plate shell (1) to obtain the automobile B-pillar reinforcing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040016.5A CN107826169B (en) | 2017-10-31 | 2017-10-31 | Automobile B-pillar reinforcing plate and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040016.5A CN107826169B (en) | 2017-10-31 | 2017-10-31 | Automobile B-pillar reinforcing plate and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN107826169A CN107826169A (en) | 2018-03-23 |
| CN107826169B true CN107826169B (en) | 2021-07-30 |
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| CN111169039A (en) * | 2020-01-10 | 2020-05-19 | 广东亚太新材料科技有限公司 | Preparation method of automobile carbon fiber composite material B column reinforcement |
| CN111169542B (en) * | 2020-01-13 | 2021-08-31 | 爱驰汽车有限公司 | B-pillar reinforcing plate, manufacturing method thereof and B-pillar assembly |
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| JP4736905B2 (en) * | 2006-03-31 | 2011-07-27 | トヨタ自動車株式会社 | Vehicle center pillar reinforcement structure |
| CN202827765U (en) * | 2012-09-03 | 2013-03-27 | 广州汽车集团股份有限公司 | Car B pillar reinforcing plate and car B pillar |
| CN103496400B (en) * | 2013-09-27 | 2016-05-18 | 奇瑞汽车股份有限公司 | Carbon fibre composite upper crossbeam of automobile water tank assembly and preparation method thereof |
| CN104827684B (en) * | 2015-04-20 | 2017-09-12 | 奇瑞汽车股份有限公司 | Motor vehicle pedal manufacture method and motor vehicle pedal |
| CN204937248U (en) * | 2015-08-18 | 2016-01-06 | 北京汽车股份有限公司 | Automobile B-column and automobile |
| CN106608287B (en) * | 2016-12-05 | 2020-01-14 | 杭州都凌汽车研发有限公司 | Automobile B-pillar reinforcing plate assembly |
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