CN110901201B - Preparation process of power battery buffering heat insulation pad - Google Patents
Preparation process of power battery buffering heat insulation pad Download PDFInfo
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- CN110901201B CN110901201B CN201911109715.XA CN201911109715A CN110901201B CN 110901201 B CN110901201 B CN 110901201B CN 201911109715 A CN201911109715 A CN 201911109715A CN 110901201 B CN110901201 B CN 110901201B
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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
- B32B37/10—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
- B32B37/1018—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 using only vacuum
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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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/10—Removing layers, or parts of layers, mechanically or chemically
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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
- B32B43/00—Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
- B32B43/003—Cutting
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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
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
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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
- B32B2307/56—Damping, energy absorption
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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
The invention discloses a preparation process of a power battery buffering heat insulation pad, which comprises the following steps: s1, preprocessing; the method specifically comprises the following steps: s1.1, preparing a buffer frame; s1.2, preparing a flame-retardant heat-insulating layer; s1.3, preparing an encapsulation film; s2, assembling and processing the semi-finished product; the method specifically comprises the following steps: s2.1, packaging the film
Compounding with a tool for assembling; s2.2, a buffer frame, a flame-retardant heat-insulating layer and an encapsulation film
And the compounded packaging film
Processing to form a semi-finished product; and S3, preparing a finished product and cutting. The invention can make 2-240 sheets at most at one time in the forming process, the used auxiliary tool can be recycled, a positioning device is also arranged for cutting, the precision is ensured, and the thickness of the product breaks through the limit of 2mm and can be 0.1-10 mm; greatly reduces the loss of raw materials, has high automation degree in the whole preparation process and ensures the quality of products.
Description
Technical Field
The invention belongs to the technical field of batteries of electric vehicles, and particularly relates to a preparation process of a power battery buffering heat-insulating pad.
Background
The battery buffering heat insulation pad is a product appearing only in recent years, and a mature process is not available, so that the preparation process of the battery buffering heat insulation pad is also characterized, and the common problem is that 4 pieces can be manufactured each time during assembly and hot press molding.
In order to ensure the yield, a labor-intensive processing mode is adopted, one sheet of the rubber frame is cut manually during cutting, the efficiency is very low, the cutting precision is greatly influenced by the proficiency and the quality of personnel, the requirements of a vehicle enterprise CPK1.67 cannot be met, and the width of the frame edge of the rubber frame reaches 30mm due to the influence of pressure during hot pressing, but an actually used product only needs 5-10 mm wide, so that the material utilization rate is low, the cost is high, more solid waste garbage can be formed in the process of manufacturing the buffering heat insulation pad, the enterprise cost and the environmental protection pressure are increased, and the thickness of the buffering heat insulation pad cannot exceed 2mm due to the limitation of the existing process preparation conditions.
Disclosure of Invention
The invention aims to solve the technical problems of low utilization rate of materials, high cost and limited product thickness of the existing preparation process of the buffering heat-insulating pad of the power battery, and accordingly provides a preparation process of the buffering heat-insulating pad of the power battery.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a preparation process of a power battery buffering heat insulation pad comprises the following steps:
and S1, preprocessing.
The method comprises the following specific steps: s1.1, preparing a buffer frame, wherein the thickness of the buffer frame is 0.1-10 mm;
the buffer frame is a silicon rubber frame, the upper surface and the lower surface of the buffer frame are subjected to activation treatment for 20-200 s by using a silicon rubber surface treatment material, the surface polarity is improved, the treated silicon rubber frame is obtained, and the prepared silicon rubber frame is used within 24 h.
The buffer frame can be made of one or more of silicon rubber, styrene butadiene rubber, nitrile rubber, ethylene propylene rubber and other synthetic rubber and natural rubber with buffer and flame retardant functions.
S1.2, preparing a flame-retardant heat-insulating layer;
the flame-retardant heat-insulation layer is made of fiber batting or fiber batting composite materials, foam or foam composite materials, and the flame-retardant heat-insulation felt with the thickness of 0.1-10 mm is cut for 2-5 times for later use by a cutting machine.
When the flame-retardant heat-insulating layer is a fiber batt, the fiber batt is one or more of a ceramic fiber felt, a glass fiber felt, a pre-oxidized fiber batt, a carbon fiber felt, a basalt fiber felt, a spandex fiber felt, a polyester fiber felt, a nylon fiber felt, a PET fiber felt, a high silica fiber felt and other fiber felts with flame-retardant functions.
When the flame-retardant heat-insulating layer is a fiber-based composite material, the fiber-based composite material is an aerogel flame-retardant heat-insulating felt or a white carbon black flame-retardant heat-insulating felt, and the base material of the aerogel flame-retardant heat-insulating felt or the white carbon black flame-retardant heat-insulating felt is one or more of a ceramic fiber felt, a glass fiber felt, a pre-oxidized fiber felt, a carbon fiber felt, a basalt fiber felt, a spandex fiber felt, a polyester fiber felt, a nylon fiber felt, a PET fiber felt, a high-silica fiber felt and other fiber felts with flame-retardant functions.
The aerogel of the flame-retardant and heat-insulating aerogel felt can be one or more of inorganic oxide aerogel, organic polymer aerogel, carbide aerogel, graphene aerogel and other aerogel with heat insulation function.
The white carbon black of the white carbon black flame-retardant heat-insulating felt can be one or more of precipitated silica, fumed silica, superfine silica gel, powdery synthetic aluminum silicate, calcium silicate and other white carbon black with heat-insulating function.
When the flame-retardant heat-insulating layer is foam, the foam can be one or more of polyimide foam, melamine foam, PU foam, antistatic foam, conductive foam, EPE, antistatic EPE, PORON, CR, EVA, bridging PE, SBR, EPDM and other foams with heat-insulating function.
When fire-retardant insulating layer is the cotton combined material of bubble, the cotton combined material of bubble is the fire-retardant adiabatic cotton of aerogel or the fire-retardant adiabatic cotton of white carbon black, the fire-retardant adiabatic cotton of aerogel base material with the fire-retardant adiabatic cotton of white carbon black is that polyimide bubble is cotton, melamine bubble is cotton, PU bubble is cotton, prevents that static bubble is cotton, electrically conducts the bubble cotton, EPE, prevents in static EPE, PORON, CR, EVA, bridging PE, SBR, EPDM and other foams that have the thermal-insulated function one or more.
The aerogel of the flame-retardant heat-insulating cotton aerogel can be one or more of inorganic oxide aerogel, organic polymer aerogel, carbide aerogel, graphene aerogel and other aerogel with heat-insulating function. The white carbon black of the white carbon black flame-retardant heat-insulating cotton can be one or more of precipitated silica, fumed silica, superfine silica gel, powdery synthetic aluminum silicate, calcium silicate and other white carbon black with heat-insulating function.
S1.3, preparing an encapsulation film, wherein the thickness of the encapsulation film is 0.001-0.2 mm;
the packaging film comprises a packaging film
And an encapsulation film
And the packaging film is a polymer film, the polymer film is cut into required length and width dimensions by a cutting machine, and the polymer film is one or more of a PI film, a PET film, a PP film, a PC film, a PVC film, a PU film, a graphite film and a polymer film layer made of other polymer materials with insulating and flame-retardant functions.
S2, assembling and processing the semi-finished product
；
S2.1, packaging the film
Compounding with a tool for assembling;
firstly, setting the heating temperature of a flat plate heater to be 100-250 ℃;
then, the packaging film is torn
The release film on, and the packaging film
Spreading in a flat plate heater, and placing the tool in the packaging film
Upper, pressing5 s-30 s later, compounding the packaging film
Taking out the workpiece together with the tool;
s2.2, a buffer frame, a flame-retardant heat-insulating layer and an encapsulation film
And the compounded packaging film
Processing to form semi-finished product
；
Firstly, the buffer frame is put into the container and carries the packaging film
In the tool groove; then, putting the flame-retardant heat-insulating felt into a buffer frame; finally, the packaging film is torn
A release film of (2), a packaging film
The cover carries an encapsulation film
A semi-finished product is obtained on the tool of the buffer frame and the flame-retardant heat-insulating layer
。
S3, preparing a semi-finished product
And cutting to obtain a finished product;
s3.1, preparing a semi-finished product
；
Firstly, installing a mould in vacuum hot-pressing equipment, setting the heating temperature of the vacuum hot-pressing equipment to be 80-300 ℃, the heating time to be 20-100 s and the pressure to be 1-100 kg.f/cm, and selectively switching on or off the vacuumizing;
then, when the temperature of the vacuum hot-pressing equipment reaches the set value, the vacuum hot-pressing equipment is opened, and the semi-finished product manufactured in the step S2 is used
Putting 1-20 plates at one time; and then, selectively switching on or off the vacuum pumping according to the previous setting, wherein the vacuum pumping is performed if the vacuum pumping is set, or the vacuum pumping is not performed, then the vacuum hot-pressing equipment is closed for compounding, and after the compounding is finished, the semi-finished product is taken out to obtain
And cooling it to below 80 ℃;
s3.2, cutting to obtain a finished product;
firstly, a cutting die is flatly paved on an operation table of hydraulic equipment, and then a semi-finished product is obtained
Placing the semi-finished product on a cutting die, and then starting a hydraulic equipment operating platform to semi-finished product
And (4) blanking to obtain a demoulded finished product buffering heat insulation pad, and detecting the size, thickness and appearance of the obtained product, wherein the product is qualified and is a good product.
The power battery buffering heat-insulating pad manufactured by the preparation process of the power battery buffering heat-insulating pad comprises an encapsulation film
And a packaging film
The buffer frame and the flame-retardant heat-insulating layer; packaging film
And an encapsulation film
A buffer frame and a flame-retardant heat-insulating layer are arranged between the two parts, and the flame-retardant heat-insulating layer is positioned in the buffer hole of the buffer frame.
The preparation process of the buffer heat-insulating pad is summarized as pretreatment, composite assembly and forming cutting, firstly, the used raw materials are treated in advance, and then the pretreated raw materials are compositely assembled into a semi-finished product under certain process conditions
Then, for a plurality of semi-finished products
Compounding with vacuum hot pressing equipment and mold to form semi-finished product
Semi-finished product
The method comprises the following steps of cooling, blanking by using a hydraulic equipment operating platform to obtain a product, wherein 2-240 sheets can be manufactured at most at one time in a forming process, used auxiliary tools can be recycled, a positioning device is also arranged for cutting, the precision is ensured, and the thickness of the product breaks through the limit of 2mm and can be 0.1 mm-10 mm; greatly reduces the loss of raw materials, has high automation degree in the whole preparation process and ensures the quality of products.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a power battery buffering heat insulation mat according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example 1:
a preparation process of a power battery buffering heat insulation pad comprises the following steps:
and S1, preprocessing.
The method comprises the following specific steps: s1.1, preparing a buffer frame, wherein the thickness of the buffer frame is 0.1-10 mm; the thickness of the buffer frame in this embodiment is preferably 0.8-5 mm, and certainly may be 0.1mm, 0.8mm, 1mm, 2mm, 6mm, 8mm, 10mm, and the like.
In this embodiment, the buffer frame is a square-shaped silicon rubber frame, the upper and lower surfaces of the square-shaped frame are activated for 20-200 seconds by using a silicon rubber surface treatment material, the surface polarity is improved, the square-shaped silicon rubber frame is obtained, and the prepared square-shaped silicon rubber frame is used within 24 hours.
The buffer frame can be made of one or more of silicon rubber, styrene butadiene rubber, nitrile rubber, ethylene propylene rubber and other synthetic rubber and natural rubber with buffer and flame retardant functions.
And the structure of the buffer frame is not limited as long as the buffer frame can have a space for accommodating the flame-retardant heat-insulating layer.
S1.2, preparing a flame-retardant heat-insulating layer;
the flame-retardant heat-insulating layer is made of fiber batts or fiber batting composite materials, foam or foam composite materials, the flame-retardant heat-insulating felt with the thickness of 0.1-10 mm is cut for 2-5 times by using a cutting machine for standby, and the thickness of the flame-retardant heat-insulating felt in the embodiment is preferably 0.3-4 mm.
When the flame-retardant heat-insulating layer is a fiber batt, the fiber batt is one or more of a ceramic fiber felt, a glass fiber felt, a pre-oxidized fiber batt, a carbon fiber felt, a basalt fiber felt, a spandex fiber felt, a polyester fiber felt, a nylon fiber felt, a PET fiber felt, a high silica fiber felt and other fiber felts with flame-retardant functions.
When the flame-retardant heat-insulating layer is a fiber-filled composite material, the fiber-filled composite material is an aerogel flame-retardant heat-insulating felt or a white carbon black flame-retardant heat-insulating felt.
The base materials of the aerogel flame-retardant heat-insulating felt and the white carbon black flame-retardant heat-insulating felt are one or more of ceramic fiber felt, glass fiber felt, pre-oxidized fiber felt, carbon fiber felt, basalt fiber felt, spandex fiber felt, polyester fiber felt, nylon fiber felt, PET fiber felt, high silica fiber felt and other fiber felts with flame-retardant functions.
The aerogel of the flame-retardant and heat-insulating aerogel felt can be one or more of inorganic oxide aerogel, organic polymer aerogel, carbide aerogel, graphene aerogel and other aerogel with heat insulation function.
The white carbon black of the white carbon black flame-retardant heat-insulating felt can be one or more of precipitated silica, fumed silica, superfine silica gel, powdery synthetic aluminum silicate, calcium silicate and other white carbon black with heat-insulating function.
When the flame-retardant heat-insulating layer is foam, the foam can be one or more of polyimide foam, melamine foam, PU foam, antistatic foam, conductive foam, EPE, antistatic EPE, PORON, CR, EVA, bridging PE, SBR, EPDM and other foams with heat-insulating function.
When fire-retardant insulating layer is the cotton combined material of bubble, the cotton combined material of bubble is the fire-retardant adiabatic cotton of aerogel or the fire-retardant adiabatic cotton of white carbon black, the fire-retardant adiabatic cotton of aerogel base material with the fire-retardant adiabatic cotton of white carbon black is that polyimide bubble is cotton, melamine bubble is cotton, PU bubble is cotton, prevents that static bubble is cotton, electrically conducts the bubble cotton, EPE, prevents in static EPE, PORON, CR, EVA, bridging PE, SBR, EPDM and other foams that have the thermal-insulated function one or more.
The aerogel of the flame-retardant heat-insulating cotton aerogel can be one or more of inorganic oxide aerogel, organic polymer aerogel, carbide aerogel, graphene aerogel and other aerogel with heat-insulating function. The white carbon black of the white carbon black flame-retardant heat-insulating cotton can be one or more of precipitated silica, fumed silica, superfine silica gel, powdery synthetic aluminum silicate, calcium silicate and other white carbon black with heat-insulating function.
S1.3, preparing an encapsulation film, wherein the thickness of the encapsulation film is 0.001-0.2 mm; in the embodiment, the thickness of the packaging film is preferably 0.03-0.08 mm; but of course also 0.001mm, 0.005mm, 0.01mm, 0.1mm, 0.15mm and 0.2 mm.
The packaging film comprises a packaging film
And an encapsulation film
And the packaging film is a polymer film, the polymer film is cut into required length and width dimensions by a cutting machine, and the polymer film is one or more of a PI film, a PET film, a PP film, a PC film, a PVC film, a PU film, a graphite film and a polymer film layer made of other polymer materials with insulating and flame-retardant functions.
S2, assembling and processing the semi-finished product
；
S2.1, packaging the film
Compounding with a tool for assembling;
firstly, setting the heating temperature of a flat plate heater to be 100-250 ℃; in the embodiment, the heating temperature is preferably 200-250 ℃, and may be 100 ℃, 150 ℃, 200 ℃ and 250 ℃.
Then, the packaging film is torn
The release film on, and the packaging film
Spreading in a flat plate heater, and placing the tool in the packaging film
Pressing for 5-30 s, and compounding the packaging film
Taking out the workpiece together with the tool; the pressing time is preferably 10-15S, and can be 5S, 10S, 15S, 20S, 25S and 30S.
S2.2, a buffer frame, a flame-retardant heat-insulating layer and an encapsulation film
And the compounded packaging film
Processing to form semi-finished product
；
Firstly, the buffer frame is put into the container and carries the packaging film
In the tool groove; then, putting the flame-retardant heat-insulating felt into a buffer frame; finally, the packaging film is torn
A release film of (2), a packaging film
The cover carries an encapsulation film
A semi-finished product is obtained on the tool of the buffer frame and the flame-retardant heat-insulating layer
。
S3, preparing a semi-finished product
And cutting to obtain a finished product;
s3.1, preparing a semi-finished product
；
Firstly, installing a mould in vacuum hot-pressing equipment, setting the heating temperature of the vacuum hot-pressing equipment to be 80-300 ℃, the heating time to be 20-100 s and the pressure to be 1-100 kg.f/cm, and switching on or off a vacuumizing selection, wherein whether vacuumizing is needed in the subsequent steps is set in advance; in the embodiment, the heating temperature is preferably 180-230 ℃, and can be 80 ℃, 100 ℃, 150 ℃, 200 ℃, 250 ℃ and 300 ℃; the heating time is preferably 20-40 s, and can be 20s, 35s, 50s, 65s, 80s and 100 s; the pressure is preferably 25 to 35 kg.f/cm, but may be 1 kg.f/cm, 10 kg.f/cm, 20 kg.f/cm, 45 kg.f/cm, 60 kg.f/cm or 100 kg.f/cm.
Then, when the temperature of the vacuum hot-pressing equipment reaches the set value, the vacuum hot-pressing equipment is opened, and the semi-finished product manufactured in the step S2 is used
Putting 1-20 plates at one time; then, the vacuumizing is selected to be on or off according to the previous setting, when the vacuumizing is selected to be on, the vacuumizing process is needed, otherwise, the vacuumizing process is not carried out, then the vacuum hot-pressing equipment is closed for compounding, and after the compounding is finished, the semi-finished product is taken out to obtain the semi-finished product
And cooling itCooling to below 80 ℃;
s3.2, cutting to obtain a finished product;
firstly, a cutting die is flatly paved on an operation table of hydraulic equipment, and then a semi-finished product is obtained
Placing the semi-finished product on a cutting die, and then starting a hydraulic equipment operating platform to semi-finished product
And (4) blanking to obtain a demoulded finished product buffering heat insulation pad, and detecting the size, thickness and appearance of the obtained product, wherein the product is qualified and is a good product.
Of course, the concept that the thickness of the flame-retardant heat-insulating layer is less than or equal to that of the buffer frame and the thicker the product to be manufactured, the longer the compounding time is required in the embodiment.
Example 2:
a power battery buffering heat insulation pad is manufactured by using a preparation process of the power battery buffering heat insulation pad, as shown in figure 1, and comprises an encapsulation film
(1) And a packaging film
(2) The buffer frame (3) and the flame-retardant heat-insulating layer (4); packaging film
(1) And an encapsulation film
(2) A buffer frame (3) and a flame-retardant heat-insulating layer (4) are arranged between the two parts, and the flame-retardant heat-insulating layer (4) is positioned in the buffer hole of the buffer frame (3).
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (4)
1. A preparation process of a power battery buffering heat insulation pad is characterized by comprising the following steps: s1, preprocessing;
s1.1, preparing a buffer frame;
the buffer frame is a silicon rubber frame, the upper surface and the lower surface of the buffer frame are subjected to activation treatment for 20 s-200 s by using a silicon rubber surface treatment material, the surface polarity is improved, the treated silicon rubber frame is obtained, and the prepared silicon rubber frame is used within 24 h; the thickness of the buffer frame is 0.1-10 mm;
s1.2, preparing a flame-retardant heat-insulating layer;
the flame-retardant heat-insulating layer is made of fiber padding or fiber padding composite materials or foam composite materials, and the flame-retardant heat-insulating felt with the thickness of 0.1-10 mm is cut for 2-5 times by using a cutting machine for later use;
s1.3, preparing an encapsulation film;
the packaging film comprises a packaging film I and a packaging film II, the packaging film is a high molecular film, and the high molecular film is cut into required length and width dimensions by a cutting machine;
s2, assembling and processing the semi-finished product I;
the assembling and processing of the semi-finished product I comprises the following specific steps:
s2.1, compounding the packaging film I with a tool for assembling;
firstly, setting the heating temperature of a flat plate heater to be 100-250 ℃;
then tearing off the release film on the packaging film I, flatly laying the packaging film I in a flat plate heater, then placing a tool used for assembling on the packaging film I, pressing for 5-30 s, and taking out the combined packaging film I and the tool together;
s2.2, processing the buffer frame, the flame-retardant heat-insulating layer and the packaging film II with the compounded packaging film I to form a semi-finished product I;
firstly, placing a buffer frame into a tool groove carrying a packaging film I; then, putting the flame-retardant heat-insulating layer into a buffer frame; finally, tearing off the release film of the packaging film II, and covering the packaging film II on a tool carrying the packaging film I, the buffer frame and the flame-retardant heat-insulating layer to obtain a semi-finished product I;
s3, preparing a semi-finished product II and cutting to obtain a finished product;
the method comprises the following specific steps:
s3.1, manufacturing a semi-finished product II;
firstly, a mould is arranged in vacuum hot-pressing equipment, the heating temperature of the vacuum hot-pressing equipment is set to be 80-300 ℃, the heating time is set to be 20-100 s, and the pressure is set to be 1 kg/cm2 ~100 kg/cm2The vacuumizing is selectively switched on or off;
then, when the temperature of the vacuum hot-pressing equipment reaches a set value, opening the vacuum hot-pressing equipment, and putting the semi-finished product I manufactured in the step S2 into 1-20 plates at one time; then, vacuumizing to select on or off, then closing the vacuum hot-pressing equipment for compounding, taking out to obtain a semi-finished product II after compounding is finished, and cooling to below 80 ℃;
s3.2, cutting to obtain a finished product;
firstly, a cutting die is flatly paved on a hydraulic equipment operating platform, then a semi-finished product II is placed on the cutting die, and then the hydraulic equipment operating platform is started to blank the semi-finished product II to obtain a demoulded finished product buffering heat insulation pad.
2. The preparation process of the power battery buffering heat insulation pad according to claim 1, characterized in that: the thickness of the packaging film I and the thickness of the packaging film II are both 0.001-0.2 mm.
3. A power battery buffering and heat insulating pad manufactured by the preparation process of the power battery buffering and heat insulating pad as claimed in any one of claims 1-2.
4. The power battery buffering and heat insulating mat as claimed in claim 3, wherein: comprises a packaging film I (1), a packaging film II (2), a buffer frame (3) and a flame-retardant heat-insulating layer (4); a buffer frame (3) and a flame-retardant heat-insulating layer (4) are arranged between the packaging film I (1) and the packaging film II (2), and the flame-retardant heat-insulating layer (4) is positioned in a buffer hole of the buffer frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911109715.XA CN110901201B (en) | 2019-11-14 | 2019-11-14 | Preparation process of power battery buffering heat insulation pad |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911109715.XA CN110901201B (en) | 2019-11-14 | 2019-11-14 | Preparation process of power battery buffering heat insulation pad |
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| Publication Number | Publication Date |
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| CN110901201A CN110901201A (en) | 2020-03-24 |
| CN110901201B true CN110901201B (en) | 2022-04-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113512875A (en) * | 2020-03-27 | 2021-10-19 | 江苏泛亚微透科技股份有限公司 | Silicon dioxide aerogel ceramic fiber cloth composite material thin plate for electric vehicle storage battery, heat insulation pad product and application |
| CN111350028A (en) * | 2020-04-20 | 2020-06-30 | 上海高观达材料科技有限公司 | Pre-oxidized fiber needled felt for battery module buffering heat insulation pad and production process thereof |
| CN112009042A (en) * | 2020-09-14 | 2020-12-01 | 湖南行必达网联科技有限公司 | Engine compartment heat insulation pad and manufacturing method thereof |
| CN114311867B (en) * | 2021-11-19 | 2023-10-20 | 河南爱彼爱和新材料有限公司 | Novel laminated aerogel composite heat insulation pad |
| CN114590001B (en) * | 2022-02-16 | 2023-10-20 | 河南爱彼爱和新材料有限公司 | Novel aerogel composite heat insulation pad with folding structure |
| CN115447159A (en) * | 2022-09-05 | 2022-12-09 | 东莞市硅翔绝缘材料有限公司 | Heat insulation pad film-pasting packaging process |
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