CN112297535A - Composite automobile cab sleeping plank and preparation method thereof - Google Patents

Composite automobile cab sleeping plank and preparation method thereof Download PDF

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Publication number
CN112297535A
CN112297535A CN202011306717.0A CN202011306717A CN112297535A CN 112297535 A CN112297535 A CN 112297535A CN 202011306717 A CN202011306717 A CN 202011306717A CN 112297535 A CN112297535 A CN 112297535A
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China
Prior art keywords
prepreg
honeycomb
sleeping
plank
composite
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CN202011306717.0A
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Chinese (zh)
Inventor
郑有亮
曲江
王石龙
曲晓华
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Changchun Longxin New Material Co ltd
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Changchun Longxin New Material Co ltd
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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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    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/02—Layered products comprising a layer of paper or cardboard next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a layer
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    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/008—Arrangements or adaptations of other passenger fittings, not otherwise provided for of beds
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    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
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    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
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  • Laminated Bodies (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention relates to a composite automobile cab sleeping plank and a preparation method thereof, belonging to the technical field of automobile manufacturing and polymer composite materials; the sleeper slab is made of a composite material formed by hot-pressing or cold-pressing honeycomb and prepreg, metal blocks or wood blocks are embedded in places needing screw fastening and punching, and after cutting, edge sealing is carried out on end faces by using fireproof edge sealing strips to form a product. The bending strength of the product can reach 70 MPa, the bending force can reach 1500N, and the bending elastic modulus can reach 5000N/mm2The bearing pressure can reach 7000N. The overall weight is only 1/3 of the common sleeping plank, the product has the advantages of light weight, high strength, fire resistance, flame retardance, sound insulation, noise reduction, damping, shock absorption and the like, and the preparation method is simple and the production efficiency is high.

Description

Composite automobile cab sleeping plank and preparation method thereof
Technical Field
The invention belongs to the technical field of automobile manufacturing and polymer composite materials, and particularly relates to a composite automobile cab sleeping board and a preparation method thereof.
Background
With the rapid development of society, the automobile holding amount is more and more, convenience and rapidness are brought to the traveling of people and the transportation of goods, energy conservation and environmental protection become the new trend of automobile development at present, and low energy consumption and low emission are the big problems of urgent thought required by the automobile manufacturing industry.
The light weight is an effective means in view of the emission reduction of the traditional automobile and the development trend of increasing the endurance of the new energy automobile.
Relevant studies show that the weight of the automobile is in certain relation with the emission, if the mass of the fuel automobile is reduced by 10%, the fuel consumption is reduced by 8%, the emission is reduced by 4%, and if the mass of the automobile is reduced by 100kg, the emission of carbon dioxide is reduced by 5g/km, so that the reduction of the weight of the automobile body becomes urgent.
Disclosure of Invention
The invention aims to provide a composite sleeper slab for an automobile cab and a preparation method thereof, and aims to solve the technical problem that the conventional sleeper slab for the cab is heavy.
In order to achieve the purpose, the composite sleeping plank for the automobile cab and the preparation method have the following specific technical scheme:
a composite automobile cab sleeping berth board comprises a honeycomb body, wherein a fixing part is embedded in the honeycomb body;
the honeycomb body both sides set up the preimpregnation material body, and are two-layer one side that the honeycomb body was kept away from to the preimpregnation material body all sets up from type paper layer, honeycomb body, preimpregnation material body and from type paper layer adopt hot pressing or cold pressing technology shaping, just honeycomb body, preimpregnation material body and from type paper layer's terminal surface set up the banding body.
Further, one side of the prepreg body, which faces the honeycomb body, is coated with a two-component epoxy adhesive in a scraping mode.
Further, the honeycomb body adopts at least one of aramid fiber paper honeycomb, aluminum honeycomb and glass cloth honeycomb.
Further, the prepreg body is made of at least one of glass fiber prepreg, carbon fiber prepreg and basalt fiber prepreg.
The invention also provides a preparation method of the composite sleeping plank for the automobile cab, which comprises the following steps when a hot pressing process is adopted, and the following steps are sequentially carried out:
step S1: and cutting the honeycomb and the prepreg according to the approximate size of the product, and embedding wood blocks or metal blocks which are required to be pre-embedded and have the same thickness as the honeycomb into the honeycomb.
Step S2: spreading the materials according to the sequence of release paper-prepreg-honeycomb-prepreg-release paper
Step S3: putting the paved materials into a multi-layer compounding machine preheated to 150 ℃ for pressure compounding under 2 MPa for 30min
Step S4: and opening the compound machine after the time is reached, taking out the product, cooling to room temperature, processing and cutting according to the shape and the size of the product, and sealing the edge of the end face by using a fireproof edge sealing strip to obtain the final product.
The invention also provides a preparation method of the composite sleeping plank for the automobile cab, which comprises the following steps when a cold pressing process is adopted, and the following steps are sequentially carried out:
step S1': pressing prepreg into prepreg curing sheet by multilayer compounding machine at 150 deg.C under 6 MPa for 10min
Step S1: cutting the solidified sheet and the honeycomb according to the approximate size of the product, and embedding wood blocks or metal blocks which are required to be pre-embedded and have the same thickness as the honeycomb into the honeycomb
Step S2': double-component epoxy adhesive blade-coated on single surface of prepreg curing sheet
Step S2: spreading the materials in the order of release paper-curing sheet (honeycomb facing adhesive) -honeycomb-curing sheet-release paper
Step S3: placing the paved materials into a press to carry out curing compounding at normal temperature under the pressure of 2 MPa for 24h
Step S4: and processing and cutting the compounded product according to the shape and the size of the product, and sealing edges of the end surfaces by using a fireproof edge sealing strip to obtain the final product.
The composite sleeping plank for the automobile cab and the preparation method have the following advantages: the invention relates to a composite material formed by hot pressing or cold pressing honeycomb and prepreg. The bending strength of the product can reach 70 MPa, the bending force can reach 1500N, and the bending elastic modulus can reach 5000N/mm2，The bearing pressure can reach 7000N. The overall weight is only 1/3 of the common sleeping plank, the product has the advantages of light weight, high strength, fire resistance, flame retardance, sound insulation, noise reduction, damping, shock absorption and the like, and the preparation method is simple and the production efficiency is high. Has important popularization and application values.
Drawings
Fig. 1 is a schematic view showing the structure of a composite sleeping board for a driver's cab of an automobile according to embodiments 1 to 3.
Fig. 2 is a schematic view of the structure of a composite sleeping board for a driver's cab in embodiments 4 and 5.
Fig. 3 is a schematic structural view of a honeycomb body of a composite sleeper for a vehicle cab according to the present invention.
Fig. 4 is a schematic view of a composite sleeping board for a driver's cab of a vehicle according to the present invention.
Fig. 5 is a front view of a composite sleeping board for a driver's cab of an automobile according to embodiments 1 to 3.
Fig. 6 is a sectional view in the direction a-a of fig. 5.
The notation in the figure is: 1. a honeycomb body; 2. a fixing member; 3. a prepreg body; 4. a release paper layer; 5. sealing the edge body; 6. a two-component epoxy adhesive layer.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, a composite sleeping board for a cab of an automobile and a method for manufacturing the same are described in detail below with reference to the accompanying drawings.
As shown in fig. 1-6, the composite sleeping plank for the automobile cab comprises a honeycomb body 1, wherein a fixing part 2 is embedded in the honeycomb body 1;
the honeycomb body comprises a honeycomb body 1, wherein prepreg bodies 3 are arranged on two sides of the honeycomb body 1, the prepreg bodies 3 are arranged on one sides, far away from the honeycomb body 1, of the prepreg bodies 4, the honeycomb body 1, the prepreg bodies 3 and the release paper layers 4 are formed by adopting a hot-pressing or cold-pressing process, and edge sealing bodies 5 are arranged on the end faces of the honeycomb body 1, the prepreg bodies 3 and the release paper layers 4.
In the present embodiment, the prepreg body 3 is coated with the two-component epoxy adhesive layer 6 on the side facing the honeycomb body 1.
In the present embodiment, the honeycomb body 1 is made of at least one of an aramid paper honeycomb, an aluminum honeycomb, and a glass cloth honeycomb.
In the present embodiment, the prepreg body 3 is at least one of a glass fiber prepreg, a carbon fiber prepreg, and a basalt fiber prepreg.
In this embodiment, the sealing body 5 is a fireproof sealing strip, and the fixing member 2 is a wood block or a metal block.
Example 1:
a composite sleeping plank for an automobile cab and a preparation method and steps are as follows:
1, cutting aramid paper honeycomb and glass fiber prepreg according to the approximate size of a product, and embedding an aluminum block which is required to be pre-embedded and has the same thickness as the honeycomb into the honeycomb;
2, paving the materials according to the sequence of release paper-prepreg-honeycomb-prepreg-release paper;
3 putting the paved materials into a multi-layer compounding machine preheated to 150 ℃ for pressure compounding under 2 MPa for 30 min;
and 4, opening the compound machine after the time is up, taking out the product, cooling to room temperature, processing and cutting according to the shape and the size of the product, and sealing the end surface by using a fireproof edge sealing strip to obtain the final product.
The performance parameters of the final product obtained in example 1 are shown in Table 1, in which the apparent density is determined according to GB/T6345-1995; the flat pressing performance detection refers to the GB/T1453-2005 standard detection; the bending performance is detected according to the GB/T1456-2005 standard, and the flat pressing performance is detected according to the sample size: 40mm by 15 mm; flexural property test sample size: 300mm 60mm 15 mm.
Table 1.
Figure BDA0002788527330000051
Example 2:
a composite sleeping plank for an automobile cab and a preparation method and steps are as follows:
1, cutting aramid paper honeycombs and carbon fiber prepregs according to the approximate size of a product, and embedding aluminum blocks which are required to be pre-embedded and have the same thickness as the honeycombs into the honeycombs;
2, paving the materials according to the sequence of release paper-prepreg-honeycomb-prepreg-release paper;
3 putting the paved materials into a multi-layer compounding machine preheated to 150 ℃ for pressure compounding under 2 MPa for 30 min;
and 4, opening the compound machine after the time is up, taking out the product, cooling to room temperature, processing and cutting according to the shape and the size of the product, and sealing the end surface by using a fireproof edge sealing strip to obtain the final product.
The performance parameters of the final product obtained in example 2 are shown in table 2, wherein the reference standards and sample sizes are the same as in example 1.
Table 2.
Figure BDA0002788527330000052
Figure BDA0002788527330000061
Example 3:
a composite sleeping plank for an automobile cab and a preparation method and steps are as follows:
1, cutting an aluminum honeycomb and basalt fiber prepreg according to the approximate size of a product, and embedding an aluminum block which is required to be pre-embedded and has the same thickness as the honeycomb into the honeycomb;
2, paving the materials according to the sequence of release paper-prepreg-honeycomb-prepreg-release paper;
3 putting the paved materials into a multi-layer compounding machine preheated to 150 ℃ for pressure compounding under 2 MPa for 30 min;
and 4, opening the compound machine after the time is up, taking out the product, cooling to room temperature, processing and cutting according to the shape and the size of the product, and sealing the end surface by using a fireproof edge sealing strip to obtain the final product.
The performance parameters of the final product obtained in example 3 are shown in table 3, wherein the reference standards and sample sizes are the same as in example 1.
Table 3.
Figure BDA0002788527330000062
Example 4:
a composite sleeping plank for an automobile cab and a preparation method and steps are as follows:
1, pressing glass fiber prepreg into a prepreg curing sheet by a multi-layer compounding machine at the temperature of 150 ℃, under the pressure of 6 MPa for 10 min;
2 cutting the glass fiber prepreg solidified sheet and the glass cloth honeycomb according to the approximate size of the product, and embedding wood blocks which need to be pre-embedded and have the same thickness as the honeycomb into the honeycomb;
3, coating a double-component epoxy adhesive layer 6 on one side of the curing sheet in a scraping way;
4, paving the materials in the order of release paper-curing sheet (honeycomb facing adhesive), honeycomb-curing sheet-release paper;
5, placing the paved materials into a press for curing and compounding at normal temperature under the pressure of 2 MPa for 24 hours;
and 6, processing and cutting the compounded product according to the shape and the size of the product, and sealing edges of the end surfaces by using a fireproof edge sealing strip to obtain the final product.
The performance parameters of the final product obtained in example 4 are shown in table 4, wherein the reference standards and sample sizes are the same as in example 1.
Table 4.
Figure BDA0002788527330000071
Example 5:
a composite sleeping plank for an automobile cab and a preparation method and steps are as follows:
1, pressing basalt fiber prepreg into a prepreg curing sheet by a multilayer compounding machine at the temperature of 150 ℃, under the pressure of 6 MPa for 10 min;
2 cutting a glass fiber prepreg solidified sheet and an aluminum honeycomb according to the approximate size of the product, and embedding wood blocks which are required to be pre-embedded and have the same thickness as the honeycomb into the honeycomb;
3, coating a double-component epoxy adhesive layer 6 on one side of the curing sheet in a scraping way;
4, paving the materials according to the sequence of release paper-curing sheet (with adhesive facing honeycomb) -honeycomb-curing sheet release paper;
5, placing the paved materials into a press for curing and compounding at normal temperature under the pressure of 2 MPa for 24 hours;
and 6, processing and cutting the compounded product according to the shape and the size of the product, and sealing edges of the end surfaces by using a fireproof edge sealing strip to obtain the final product.
The performance parameters of the final product obtained in example 5 are shown in table 5, wherein the reference standards and sample sizes are the same as in example 1.
Table 5.
Figure BDA0002788527330000081
As can be seen from the performance test data in tables 1-5, the apparent density of the sleeper plank of the automobile cab compounded by the invention is kg/m3186-212, the flat compressive strength Mpa of 3.96-4.85, the bearing pressure N of 6975-7435, the bending strength Mpa of 68.3-71.6, the bending force N of 1478-1587, and the bending elastic modulus N/mm25046 and 5285, the existing sleeping boards of the cab are all plywood, the bending strength is 32 MPa, and the bending elastic modulus is 2500N/mm2The bending force is 1400N, the bending elastic modulus of the product is large, which shows that the product has good rigidity and small bending deformation under the action of a certain force, and the data in tables 1 to 5 show that the product has light weight, is only 1/3 of plywood, has high strength, and is fireproof and flame-retardant.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (9)

1. The composite sleeping plank for the automobile cab is characterized by comprising a honeycomb body (1), wherein a fixing part (2) is embedded into the honeycomb body (1);
the honeycomb body (1) is characterized in that prepreg bodies (3) are arranged on two sides of the honeycomb body (1), two layers are arranged on one sides, away from the honeycomb body (1), of the prepreg bodies (3), release paper layers (4) are arranged on one sides, hot-pressing or cold-pressing forming is adopted on the honeycomb body (1), the prepreg bodies (3) and the release paper layers (4), and edge sealing bodies (5) are arranged on end faces of the honeycomb body (1), the prepreg bodies (3) and the release paper layers (4).
2. The composite sleeping plank for an automobile cab as claimed in claim 1, wherein the prepreg body (3) is coated with a two-component epoxy adhesive layer (6) on the side facing the honeycomb body (1).
3. The composite sleeping board for the automobile cab as claimed in claim 1, wherein the honeycomb body (1) is at least one of aramid paper honeycomb, aluminum honeycomb and glass cloth honeycomb.
4. The composite vehicle cab sleeping board according to claim 1, wherein the prepreg body (3) is at least one of a glass fiber prepreg, a carbon fiber prepreg, and a basalt fiber prepreg.
5. A method of manufacturing a composite motor vehicle cab sleeping board according to any one of claims 1 to 4, comprising the following steps, in sequence:
step S1: cutting the honeycomb body (1) and the prepreg body (3) according to the approximate size of a product, and embedding a fixing part (2) which needs to be embedded and has the same thickness as the honeycomb body (1) into the honeycomb body (1);
step S2: paving the materials according to a certain sequence;
step S3: putting the paved materials into a multi-layer compounding machine preheated to 150 ℃ for pressure compounding under 2 MPa for 30 min;
step S4: and opening the compound machine after the time is reached, taking out the product, cooling the product to room temperature, processing and cutting the product according to the shape and the size of the product, and performing edge sealing on the end surface by using an edge sealing body (5) to obtain a final product.
6. The method for preparing the composite sleeping plank for the automobile cab as claimed in claim 5, wherein the step S2 is to lay the materials in the order of release paper-prepreg-honeycomb-prepreg-release paper.
7. The method for preparing a composite sleeping plank for a driver ' S cab of a vehicle as claimed in claim 5, wherein step S1 ' is performed before step S1, and step S1 ' is performed as follows: and pressing the prepreg into a prepreg curing sheet by a multilayer compounding machine at the temperature of 150 ℃ and under the pressure of 6 MPa for 10 min.
8. The method for preparing a composite sleeping plank for a driver ' S cab of a vehicle as claimed in claim 7, wherein step S2 ' is performed between steps S1 and S2, and step S2 ' is performed by: and (3) coating a double-component epoxy adhesive layer (6) on one side of the prepreg curing sheet in a scraping manner.
9. The method for preparing the composite sleeping plank for the automobile cab as claimed in claim 7 or 8, wherein the step S2 is to lay the materials in the order of release paper-cured sheet-honeycomb-cured sheet-release paper.
CN202011306717.0A 2020-11-20 2020-11-20 Composite automobile cab sleeping plank and preparation method thereof Pending CN112297535A (en)

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