CN112157966A - Fiber reinforced metal material composite board - Google Patents
Fiber reinforced metal material composite board Download PDFInfo
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- CN112157966A CN112157966A CN202011053396.8A CN202011053396A CN112157966A CN 112157966 A CN112157966 A CN 112157966A CN 202011053396 A CN202011053396 A CN 202011053396A CN 112157966 A CN112157966 A CN 112157966A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
- B32B37/003—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality to avoid air inclusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/106—Carbon fibres, e.g. graphite fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/08—Cars
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Abstract
A fiber reinforced metal material composite board belongs to the technical field of composite materials. The composite board comprises metal sheets, fiber reinforced composite material prepreg cloth and adhesive films, wherein the number of the metal sheets is more than or equal to 2, and the upper surface and the lower surface of the composite board are both the metal sheets; the number of the fiber reinforced composite material prepreg cloth is more than or equal to 1 layer; an adhesive film is arranged between the metal sheet and the fiber reinforced composite material prepreg cloth. The composite board has the advantages that the composite board makes up for the insufficient strength and rigidity of the metal material, enhances the impact resistance of the fiber composite material, finally enables the composite board to have high specific rigidity and specific strength, excellent fatigue performance and damage tolerance performance, and simultaneously clamps the fiber reinforced composite material between the metal sheets to avoid the phenomena of aging and the like caused by the contact of the fiber reinforced composite material with high-oxygen media such as air and the like.
Description
Technical Field
The invention belongs to the technical field of composite materials, and particularly relates to a fiber-reinforced metal material composite board. In particular to a fiber reinforced metal light composite board applied to the field of automobile light weight and a preparation method thereof.
Background
The advanced fiber reinforced resin matrix composite material has excellent performances such as high specific strength, high specific modulus, low density and the like, and is increasingly widely applied. The common advanced reinforced fibers comprise carbon fibers, aramid fibers, basalt fibers, glass fibers and the like, each fiber has the common characteristics of high strength, low density and the like, but each fiber has the particularity, for example, the carbon fibers have the highest strength, but belong to conductive materials, when the fiber is used for structural reinforcement, the influence of electrochemical corrosion on the whole structure must be considered, the cost is highest, the application range is limited, but in recent years, along with the vigorous development of the carbon fiber preparation industry, the price of the carbon fibers is also in the trend of descending year by year, the application short plates of the carbon fibers gradually disappear, and the fiber is certainly and widely applied in the future; the aramid fiber has the strength between that of carbon fiber and that of glass fiber, is non-conductive, does not need to consider the influence of electrochemical corrosion, has high shear strength, can be used in the fields requiring high impact performance such as bulletproof and the like, but has poor heat resistance, is easy to absorb moisture and influences the application range; the basalt fiber is high-temperature resistant and low-temperature resistant, belongs to an excellent heat-insulating material, but has higher density than other fibers; although the strength of the glass fiber is not high, the manufacturing cost is lowest, and the glass fiber can be used in the fields with lower strength requirements and relatively strict cost control. Compared with the traditional metal material, the fiber reinforced resin matrix composite material still has the defects of poor impact resistance, high cost, poor ductility and the like.
Over thousands of years of development of metal materials, particularly steel materials, the smelting and processing processes are relatively mature, the strength of each variety basically reaches the highest level, the continuous upward breakthrough is very difficult, the density of the metal materials is relatively high, and the metal materials are not the first choice for light weight in many fields. In recent years, although light alloys such as magnesium, aluminum, and lithium have appeared, the application ratio of metal materials has been decreasing in the fields of weight reduction such as aerospace and automobiles. But the metal material has the advantages of high plasticity, wide traditional processing industry foundation and the like which are not possessed by the fiber reinforced resin matrix composite material.
In order to overcome the respective defects of the fiber reinforced resin matrix composite material and the metal material, the two materials are brought into play in a centralized way
The method has great significance for exploring the advanced fiber reinforced metal material technology. Conventional steel sheets for automobiles are gradually becoming thinner and lighter in strength due to weight reduction, but this causes insufficient rigidity and excessive spring back due to excessive thinning. The direct use of the conventional fiber composite material for automobiles can improve the phenomenon, but the aging phenomenon caused by illumination, high and low temperature, acid and alkali and the like exists, so that the fiber composite material cannot be applied on a large scale.
In summary, there is an urgent need in the field of automobile lightweight for a material and a preparation method thereof, which can not only solve the problem of insufficient rigidity of an automobile steel plate due to lightweight thinning, but also solve the problem of aging of an automobile fiber reinforced resin matrix composite due to illumination, high and low temperature and acidity and alkalinity.
Disclosure of Invention
The invention aims to provide a fiber-reinforced metal material composite board, which solves the problems of insufficient rigidity of an automobile steel plate caused by thinning and aging of an automobile fiber-reinforced resin matrix composite material in the prior light weight field. Meanwhile, the coating can be matched with the existing automobile coating production line and production process.
A fiber reinforced metal material composite board comprises metal sheets 1, fiber reinforced composite material prepreg cloth 2 and an adhesive film 3, wherein the number of the metal sheets 1 is more than or equal to 2, and the upper surface and the lower surface of the composite board are both the metal sheets 1; the number of the fiber reinforced composite material prepreg cloth 2 is more than or equal to 1 layer; an adhesive film 3 is arranged between the metal sheet 1 and the fiber reinforced composite material prepreg 2.
The metal sheet 1 is one of metal plates such as a steel plate, an aluminum alloy plate, a magnesium alloy plate or a titanium alloy plate with the thickness of 0.2 mm-2 mm.
The fiber reinforcement in the fiber reinforced composite material prepreg 2 is one of carbon fiber, aramid fiber, glass fiber or basalt fiber.
The adhesive film 3 is epoxy resin adhesive.
The preparation method of the composite board comprises the following specific steps and parameters:
1. carrying out surface treatment such as sand blasting coarsening, alcohol/acetone wiping degreasing, acid cleaning and the like on the non-exposed surface of the metal sheet 1;
2. and uniformly coating a layer of adhesive film 3 on the non-exposed surface of the metal sheet 1 after surface treatment.
3. Cleaning the die, and uniformly coating a metal release agent on the surface of the die for later use;
4. laying according to the rule that metal sheets 1 and fiber reinforced composite material prepreg cloth 2 are alternately laid, and a layer of glue film 3 is coated between the metal sheets and the fiber reinforced composite material prepreg cloth;
5. pressing and stacking are carried out, pressure is applied from one side to the other side of the paved composite plate to drive air, then the metal sheet 1 is fixed on the upper surface and the lower surface of the fiber reinforced composite material prepreg cloth 2, and then the metal sheet is placed into a mold and is matched with the mold; the hot pressing temperature is 120-180 ℃, and the pressure is 80kgf/cm2～120kgf/cm2The time is 0.5h to 4 h.
6. And cooling to room temperature after reaching the time, and demolding to obtain the flat and warp-free composite board.
The invention has the advantages that: the composite board formed by the sandwich structure formed by alternately laying the metal sheets, the adhesive film and the fiber reinforced composite material prepreg at a certain temperature and pressure not only makes up the deficiency of the strength and the rigidity of the metal material, but also enhances the shock resistance of the fiber reinforced composite material, finally ensures that the composite board not only has high specific rigidity and specific strength, but also has excellent fatigue performance and damage tolerance performance, and simultaneously clamps the fiber reinforced composite material between the metal sheets to avoid the phenomena of aging and the like caused by the contact of the fiber reinforced composite material and high-oxygen media such as air and the like.
Drawings
Fig. 1 is a schematic structural view of the composite plate of the present invention. The composite material comprises a metal sheet 1, a fiber reinforced composite material prepreg 2 and a glue film 3.
Detailed Description
Example 1
The metal sheet 1 is made of IF steel plate with thickness of 0.5mm, the fiber-reinforced composite material prepreg 2 is made of carbon fiber-reinforced composite material unidirectional prepreg, the adhesive film 3 is made of 9432 epoxy resin glue, the upper and lower surfaces are made of IF steel plate, and the middle layer is made of [0/90 ]]36 layers of unidirectional prepreg cloth of carbon fiber reinforced composite material are arranged. The method comprises the following specific steps: carrying out surface treatment such as sand blasting coarsening, alcohol/acetone wiping degreasing, acid cleaning and the like on the non-exposed surface of the IF steel plate with the thickness of 0.5mm, and then uniformly coating a layer of 9432 epoxy resin glue; the carbon fiber reinforced composite material is unidirectionally presoaked according to the formula [0/90 ]]3Arranging and layering; simultaneously cleaning the die, and uniformly coating a metal release agent on the surface of the die for later use; the treated IF steel plate and the laid carbon fiber reinforced composite materialPressing and overlapping the prepreg cloth, applying pressure from one side of the paved composite board to the other side to drive air, fixing the IF steel plate on the upper surface and the lower surface of the carbon fiber reinforced composite prepreg cloth, putting the carbon fiber reinforced composite prepreg cloth into a mold, and closing the mold; the hot pressing temperature was 140 ℃ and the pressure was 100kgf/cm2The time is 2 hours; and cooling to room temperature after reaching the time, and demolding to obtain the flat and warp-free composite board.
The resulting panels were subjected to tensile testing according to the GB/T228.1-2010 standard, with the following comparative results:
TABLE 1 mechanical Properties of composite sheet and Metal sheet
| Tensile strength at 90 DEG/MPa | 0 degree tensile strength/MPa | |
| IF steel | 276 | 287 |
| Example 1 | 487 | 495 |
Example 2
The metal sheet 1 is a tin plate substrate with the thickness of 0.2mm, the fiber reinforced composite material prepreg 2 is a carbon fiber reinforced composite material unidirectional prepreg, the adhesive film 3 is 9432 epoxy resin glue, the upper surface and the lower surface of the adhesive film are provided with the zinc plate substrates, and the middle layer is [0/90 ]]36 layers of unidirectional prepreg cloth of carbon fiber reinforced composite material are arranged. In particular toThe method comprises the following steps: carrying out surface treatment such as sand blasting coarsening, alcohol/acetone wiping degreasing, acid washing and the like on the non-exposed surface of a tin plate substrate with the thickness of 0.2mm, and then uniformly coating a layer of 9432 epoxy resin glue; the carbon fiber reinforced composite material is unidirectionally presoaked according to the formula [0/90 ]]3Arranging and layering; simultaneously cleaning the die, and uniformly coating a metal release agent on the surface of the die for later use; pressing and overlapping the treated tinned plate substrate and the laid carbon fiber reinforced composite material prepreg cloth, applying pressure from one side of the laid composite board to the other side to drive air, fixing the tinned plate substrate on the upper surface and the lower surface of the carbon fiber reinforced composite material prepreg cloth, putting the tinned plate substrate into a mold, and closing the mold; the hot pressing temperature was 140 ℃ and the pressure was 100kgf/cm2The time is 2 hours; and cooling to room temperature after reaching the time, and demolding to obtain the flat and warp-free composite board.
The resulting panels were subjected to tensile testing according to the GB/T228.1-2010 standard, with the following comparative results:
TABLE 2 mechanical properties of composite and metal sheets
| Tensile strength at 90 DEG/MPa | 0 degree tensile strength/MPa | |
| Tinned plate substrate | 420 | 425 |
| Example 2 | 806 | 810 |
Example 3
The metal sheet 1 is a tin plate substrate with the thickness of 0.2mm, the fiber reinforced composite material prepreg 2 is a carbon fiber reinforced composite material unidirectional prepreg, the adhesive film 3 is 9432 epoxy resin glue, the upper surface and the lower surface of the adhesive film are provided with the zinc plate substrates, and the middle layer is [0/0/0/0/0/0 ]]6 layers of unidirectional prepreg cloth of carbon fiber reinforced composite material are arranged. The method comprises the following specific steps: carrying out surface treatment such as sand blasting coarsening, alcohol/acetone wiping degreasing, acid washing and the like on the non-exposed surface of a tin plate substrate with the thickness of 0.2mm, and then uniformly coating a layer of 9432 epoxy resin glue; the carbon fiber reinforced composite material is unidirectionally presoaked according to the formula [0/0/0/0/0/0 ]]Arranging and layering; simultaneously cleaning the die, and uniformly coating a metal release agent on the surface of the die for later use; pressing and overlapping the treated tinned plate substrate and the laid carbon fiber reinforced composite material prepreg cloth, applying pressure from one side of the laid composite board to the other side to drive air, fixing the tinned plate substrate on the upper surface and the lower surface of the carbon fiber reinforced composite material prepreg cloth, putting the tinned plate substrate into a mold, and closing the mold; the hot pressing temperature was 140 ℃ and the pressure was 100kgf/cm2The time is 2 hours; and cooling to room temperature after reaching the time, and demolding to obtain the flat and warp-free composite board.
The resulting panels were subjected to tensile testing according to the GB/T228.1-2010 standard, with the following comparative results:
TABLE 3 mechanical Properties of composite sheet and Metal sheet
| Tensile strength at 90 DEG/MPa | 0 degree tensile strength/MPa | |
| Tinned plate substrate | 420 | 425 |
| Example 3 | 195 | 1332 |
Example 4
The metal sheet 1 is made of DP590 steel plate with thickness of 1mm, the fiber reinforced composite material prepreg 2 is made of carbon fiber reinforced composite material unidirectional prepreg, the adhesive film 3 is made of 9432 epoxy resin glue, the upper and lower surfaces are IF steel plates, and the middle layer is [0/90 ]]36 layers of unidirectional prepreg cloth of carbon fiber reinforced composite material are arranged. The method comprises the following specific steps: carrying out surface treatment such as sand blasting coarsening, alcohol/acetone wiping degreasing, acid cleaning and the like on the non-exposed surface of the DP590 steel plate with the thickness of 1mm, and then uniformly coating a layer of 9432 epoxy resin glue; the carbon fiber reinforced composite material is unidirectionally presoaked according to the formula [0/90 ]]3Arranging and layering; simultaneously cleaning the die, and uniformly coating a metal release agent on the surface of the die for later use; laminating the processed DP590 steel plate and the laid carbon fiber reinforced composite material prepreg cloth, applying pressure from one side of the laid composite plate to the other side to drive air, fixing the DP590 steel plate on the upper surface and the lower surface of the carbon fiber reinforced composite material prepreg cloth, putting the carbon fiber reinforced composite material prepreg cloth into a mold, and closing the mold; the hot pressing temperature was 140 ℃ and the pressure was 100kgf/cm2The time is 2 hours; and cooling to room temperature after reaching the time, and demolding to obtain the flat and warp-free composite board.
The resulting panels were subjected to tensile testing according to the GB/T228.1-2010 standard, with the following comparative results:
TABLE 4 mechanical Properties of composite sheet and Metal sheet
| Tensile strength at 90 DEG/MPa | 0 degree tensile strength/MPa | |
| DP590 steel | 617 | 629 |
| Example 4 | 1145 | 1167 |
Example 5
The metal sheet 1 is made of aviation 7-series aluminum alloy plate with thickness of 1mm, the fiber-reinforced composite material prepreg 2 is made of carbon fiber-reinforced composite material unidirectional prepreg, the adhesive film 3 is made of 9432 epoxy resin glue, the upper and lower surfaces are IF steel plates, and the middle layer is [0/90 ]]36 layers of unidirectional prepreg cloth of carbon fiber reinforced composite material are arranged. The method comprises the following specific steps: carrying out surface treatment such as sand blasting coarsening, alcohol/acetone wiping degreasing, acid pickling and the like on the non-exposed surface of the aviation 7-series aluminum alloy plate with the thickness of 1mm, and then uniformly coating a layer of 9432 epoxy resin glue; the carbon fiber reinforced composite material is unidirectionally presoaked according to the formula [0/90 ]]3Arranging and layering; simultaneously cleaning the die, and uniformly coating a metal release agent on the surface of the die for later use; laminating the treated aviation 7-series aluminum alloy plate and the laid carbon fiber reinforced composite material prepreg cloth, pressing from one side of the laid composite plate to the other side to drive air, fixing the aviation 7-series aluminum alloy plate on the upper surface and the lower surface of the carbon fiber reinforced composite material prepreg cloth, putting the carbon fiber reinforced composite material prepreg cloth into a mold, and closing the mold; the hot pressing temperature was 140 ℃ and the pressure was 100kgf/cm2The time is 2 hours; and cooling to room temperature after reaching the time, and demolding to obtain the flat and warp-free composite board.
The resulting panels were subjected to tensile testing according to the GB/T228.1-2010 standard, with the following comparative results:
TABLE 5 mechanical properties of composite and metal sheets
| Tensile strength at 90 DEG/MPa | 0 degree tensile strength/MPa | |
| 7-series aluminum alloy | 548 | 556 |
| Example 5 | 980 | 998 |
Example 6
The metal sheet 1 is 6 series aluminum alloy plate with thickness of 1mm for automobile outer plate, the fiber reinforced composite material prepreg 2 is one-way prepreg of carbon fiber reinforced composite material, the adhesive film 3 is 9432 epoxy resin glue, the upper and lower surfaces are IF steel plate, and the middle layer is [0/90 ]]36 layers of unidirectional prepreg cloth of carbon fiber reinforced composite material are arranged. The method comprises the following specific steps: carrying out surface treatment such as sand blasting coarsening, alcohol/acetone wiping degreasing, acid pickling and the like on the non-exposed surface of a 6-series aluminum alloy plate with the thickness of 1mm for an automobile outer plate, and then uniformly coating a layer of 9432 epoxy resin glue; the carbon fiber reinforced composite material is unidirectionally presoaked according to the formula [0/90 ]]3Arranging and layering; simultaneously cleaning the die, and uniformly coating a metal release agent on the surface of the die for later use; treated steam6 series aluminum alloy plates for the outer plate of the automobile are laminated with the laid carbon fiber reinforced composite material prepreg cloth, pressure is applied from one side of the laid composite plate to the other side of the laid composite plate to drive air, then the 6 series aluminum alloy plates for the outer plate of the automobile are fixed on the upper surface and the lower surface of the carbon fiber reinforced composite material prepreg cloth, then the outer plate of the automobile is placed into a mold, and the mold is closed; the hot pressing temperature was 140 ℃ and the pressure was 100kgf/cm2The time is 2 hours; and cooling to room temperature after reaching the time, and demolding to obtain the flat and warp-free composite board.
The resulting panels were subjected to tensile testing according to the GB/T228.1-2010 standard, with the following comparative results:
TABLE 6 mechanical properties of composite and metal sheets
| Tensile strength at 90 DEG/MPa | 0 degree tensile strength/MPa | |
| 6 series aluminum alloy | 249 | 255 |
| Example 6 | 480 | 495 |
Example 7
The metal sheet 1 is a 5-series aluminum alloy plate with the thickness of 1mm for an automobile inner plate, the fiber reinforced composite material prepreg 2 is a carbon fiber reinforced composite material one-way prepreg, the adhesive film 3 is 9432 epoxy resin glue, and the upper surface and the lower surface of the adhesive film are laidIs an IF steel plate with an intermediate layer of [0/90]36 layers of unidirectional prepreg cloth of carbon fiber reinforced composite material are arranged. The method comprises the following specific steps: carrying out surface treatment such as sand blasting coarsening, alcohol/acetone wiping degreasing, acid pickling and the like on the non-exposed surface of a 5-series aluminum alloy plate with the thickness of 1mm for an automobile inner plate, and then uniformly coating a layer of 9432 epoxy resin glue; the carbon fiber reinforced composite material is unidirectionally presoaked according to the formula [0/90 ]]3Arranging and layering; simultaneously cleaning the die, and uniformly coating a metal release agent on the surface of the die for later use; pressing and overlapping the treated 5-series aluminum alloy plate for the automobile inner plate and the laid carbon fiber reinforced composite material prepreg cloth, applying pressure from one side of the laid composite plate to the other side to drive air, fixing the 5-series aluminum alloy plate for the automobile inner plate on the upper surface and the lower surface of the carbon fiber reinforced composite material prepreg cloth, putting the automobile inner plate into a mold, and closing the mold; the hot pressing temperature was 140 ℃ and the pressure was 100kgf/cm2The time is 2 hours; and cooling to room temperature after reaching the time, and demolding to obtain the flat and warp-free composite board.
The resulting panels were subjected to tensile testing according to the GB/T228.1-2010 standard, with the following comparative results:
TABLE 7 mechanical properties of composite and metal sheets
| Tensile strength at 90 DEG/MPa | 0 degree tensile strength/MPa | |
| 5 series aluminum alloy | 247 | 254 |
| Example 7 | 476 | 489 |
Example 8
The metal sheet 1 is made of TC4 titanium alloy plate with thickness of 1mm, the fiber-reinforced composite material prepreg 2 is made of carbon fiber-reinforced composite material unidirectional prepreg, the adhesive film 3 is made of 9432 epoxy resin glue, the upper and lower surfaces are IF steel plates, and the middle layer is [0/90 ]]36 layers of unidirectional prepreg cloth of carbon fiber reinforced composite material are arranged. The method comprises the following specific steps: carrying out surface treatment such as sand blasting coarsening, alcohol/acetone wiping degreasing, acid washing and the like on the non-exposed surface of the TC4 titanium alloy plate with the thickness of 1mm, and then uniformly coating a layer of 9432 epoxy resin glue; the carbon fiber reinforced composite material is unidirectionally presoaked according to the formula [0/90 ]]3Arranging and layering; simultaneously cleaning the die, and uniformly coating a metal release agent on the surface of the die for later use; laminating the treated TC4 titanium alloy plate and the laid carbon fiber reinforced composite material prepreg cloth, pressing from one side of the laid composite plate to the other side of the laid composite plate to drive air, fixing the TC4 titanium alloy plate on the upper surface and the lower surface of the carbon fiber reinforced composite material prepreg cloth, putting the carbon fiber reinforced composite material prepreg cloth into a mold, and closing the mold; the hot pressing temperature was 140 ℃ and the pressure was 100kgf/cm2The time is 2 hours; and cooling to room temperature after reaching the time, and demolding to obtain the flat and warp-free composite board.
The resulting panels were subjected to tensile testing according to the GB/T228.1-2010 standard, with the following comparative results:
TABLE 8 mechanical properties of composite and metal sheets
Claims (5)
1. The fiber-reinforced metal material composite board is characterized by comprising metal sheets (1), fiber-reinforced composite material prepreg cloth (2) and adhesive films (3), wherein the number of the metal sheets (1) is more than or equal to 2, and the upper surface and the lower surface of the composite board are both the metal sheets (1); the number of the fiber reinforced composite material prepreg cloth (2) is more than or equal to 1 layer; an adhesive film (3) is arranged between the metal sheet (1) and the fiber reinforced composite material prepreg cloth (2).
2. A composite board according to claim 1, wherein the metal sheet (1) is one of a steel sheet, an aluminum alloy sheet, a magnesium alloy sheet or a titanium alloy sheet having a thickness of 0.2mm to 2 mm.
3. A composite board according to claim 1, characterised in that the fibre reinforcement in the fibre-reinforced composite prepreg cloth (2) is one of carbon fibres, aramid fibres, glass fibres or basalt fibres.
4. A composite board according to claim 1, characterised in that the glue film (3) is an epoxy glue.
5. The composite board according to claim 1, wherein the preparation method of the composite board comprises the following specific steps and parameters:
1) carrying out surface treatment such as sand blasting coarsening, alcohol/acetone wiping degreasing, acid cleaning and the like on the non-exposed surface of the metal sheet (1);
2) uniformly coating a layer of adhesive film (3) on the non-exposed surface of the metal sheet (1) after surface treatment;
3) cleaning the die, and uniformly coating a metal release agent on the surface of the die for later use;
4) paving metal sheets (1) and fiber reinforced composite material prepreg cloth (2) at intervals, and coating a layer of adhesive film (3) between the metal sheets and the fiber reinforced composite material prepreg cloth for paving;
5) pressing and stacking are carried out, pressure is applied from one side to the other side of the paved composite plate to drive air, then the metal sheet (1) is fixed on the upper surface and the lower surface of the fiber reinforced composite material prepreg cloth (2), and then the metal sheet is placed into a mold and is matched with the mold; temperature of hot pressingAt 120-180 deg.C and pressure of 80kgf/cm2～120kgf/cm2The time is 0.5h to 4 h;
6) and cooling to room temperature after reaching the time, and demolding to obtain the flat and warp-free composite board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011053396.8A CN112157966A (en) | 2020-09-29 | 2020-09-29 | Fiber reinforced metal material composite board |
Applications Claiming Priority (1)
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| CN113059874A (en) * | 2021-02-08 | 2021-07-02 | 北京协同创新研究院 | Thermoplastic super-hybrid composite laminated board and preparation method thereof |
| CN115157723A (en) * | 2022-06-28 | 2022-10-11 | 台州学院 | Metal-wrapped composite material forming process based on reconfigurable flexible die |
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