CN115674734A - Compartment plate, manufacturing process thereof and refrigerator car - Google Patents
Compartment plate, manufacturing process thereof and refrigerator car Download PDFInfo
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- CN115674734A CN115674734A CN202211230418.2A CN202211230418A CN115674734A CN 115674734 A CN115674734 A CN 115674734A CN 202211230418 A CN202211230418 A CN 202211230418A CN 115674734 A CN115674734 A CN 115674734A
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Abstract
The application relates to the field of material manufacturing, in particular to a compartment plate, a manufacturing process of the compartment plate and a refrigerator car. The process comprises prefabricating a carriage plate mold according to a three-dimensional model of the device; after a release agent is coated in the compartment plate mold, a gel coat is sprayed; paving glass fiber fabric on the gel coat; spraying unsaturated polyester resin and chopped roving on the glass fiber fabric; closing the compartment plate mold; injecting foaming materials into a cavity of the closed carriage plate mold; and opening the mold after the foaming material is cured to obtain the compartment plate. When the mold is selected, the mold is manufactured and used according to the vehicle body structure, and the foaming material is filled after the mold is closed, so that the manufactured compartment plate is a non-planar special-shaped compartment plate, is closer to a vehicle body line and can be fully attached to a vehicle body. Meanwhile, when different carriage plates are spliced and assembled, splicing gaps are small, the assembling difficulty is reduced, excessive gaps are not easily generated, the heat insulation performance of the carriage is improved, and the requirement of high-quality transportation is further met.
Description
Technical Field
The application relates to the field of material manufacturing, in particular to a compartment plate, a manufacturing process of the compartment plate and a refrigerator car.
Background
As a special device for cold chain transportation, a refrigerator car, a thermostat, and the like are widely used for transportation of goods such as vaccines, vegetables, and meat, and particularly, in recent years, the cold chain industry is placed under national strategic level. Therefore, the quality of cold chain products is improved, and development of manufacturing process routes of the refrigerated truck carriage plate becomes research and development focuses of various manufacturers. By taking a refrigerator car as an example, the light passenger refrigerator car is taken as an important category of the refrigerator car, the problems of cold chain city distribution and last kilometer are solved, the light passenger refrigerator car can freely go in and out of places such as supermarkets, underground garages of residential districts and the like, and the transportation mode is flexible.
At present, the manufacturing process applied to the inside heat-insulation carriage body of the light passenger refrigerator car has the defects that the manufacturing mode of the carriage plate is traditional, and even the carriage plate needs to be cut and spliced manually, so that a large number of gaps often exist in different carriage plates during splicing. The refrigerator car for light passenger manufactured by similar process has insufficient thermal insulation performance of the carriage body, and can not meet the transportation requirements of products such as special food, medicines and the like.
Disclosure of Invention
In view of this, the application provides a carriage plate and a manufacturing process thereof, and a refrigerator car, which solves or improves the technical problems that the manufacturing process of the carriage plate for the cold chain in the prior art has defects, and the produced carriage plate causes insufficient thermal insulation performance of the carriage.
According to a first aspect of the present application, there is provided a manufacturing process of a compartment plate, the manufacturing process of the compartment plate comprising: prefabricating a carriage plate mold according to the three-dimensional model of the application device; after a release agent is coated in the compartment plate mold, a gel coat is sprayed; paving a glass fiber fabric on the gel coat; spraying an unsaturated polyester resin and chopped roving on the glass fiber fabric; closing the compartment plate mold; injecting foaming materials into a cavity of the closed carriage plate mold; and opening the mold after the foaming material is cured to obtain the compartment plate.
In one possible implementation, the laying of the glass fiber fabric on the gel coat includes: determining the specification of the glass fiber fabric according to the preset area of the compartment plate; and paving a glass fiber fabric corresponding to the specification on the surface of the gel coat.
In one possible implementation, in the step of prefabricating a panel mould according to the three-dimensional model of the application device, the panel mould includes: a bottom die and a cover die; the bottom die and the cover die are made of glass fiber reinforced plastics.
In one possible implementation, the clamping the panel mold includes: hoisting the cover mold above the bottom mold, and closing the cover mold and the bottom mold; and the press locks the cover die and the bottom die after die assembly according to preset pressure.
In a possible implementation manner, in the step of spraying the gel coat after the step of applying the release agent in the compartment plate mold, the gel coat is: and (3) coating m-phenyl neopentyl glycol with a gel coat.
In a possible implementation manner, after the step of spraying the gel coat after the step of applying the release agent in the compartment plate mold, the manufacturing process further includes: and curing the gel coat in the compartment plate die according to a preset curing temperature.
In one possible implementation, the spraying unsaturated polyester resin and chopped roving on the glass fiber fabric comprises: adding an accelerator into the unsaturated polyester resin and stirring to obtain a stirred material; transferring the stirred material to a feed tank; preserving the heat of the stirred materials in the feeding tank according to a preset constant temperature to obtain the unsaturated polyester resin for injection; the unsaturated polyester resin for spraying is mixed with the chopped roving, and the mixed unsaturated polyester resin and chopped roving are sprayed on the glass fiber fabric.
In a possible implementation manner, in the step of injecting the foaming material into the cavity of the closed compartment plate mold, the foaming material is black and white material.
According to a second aspect of the present application, there is also provided a compartment panel, which is manufactured by using the manufacturing process of the compartment panel as described in any one of the above aspects.
In one possible implementation, the panel includes: a gel coat layer; the structural layer is attached to the gel coat layer and comprises a glass fiber fabric, unsaturated polyester resin and chopped roving; and the heat insulation layer is attached to the structural layer and comprises a cured foaming material.
According to a third aspect of the present application, there is also provided a refrigerated vehicle comprising: the carriage plate is arranged on the body of the refrigerator car.
The application provides a railway carriage or compartment board and manufacturing process, refrigerator car thereof, wherein the application provides a manufacturing process of railway carriage or compartment board, specifically includes: prefabricating a carriage plate mold according to the three-dimensional model of the application device; after a release agent is coated in the compartment plate mold, a gel coat is sprayed; paving glass fiber fabric on the gel coat; spraying unsaturated polyester resin and chopped roving on the glass fiber fabric; closing the compartment plate mold; injecting foaming materials into a cavity of the closed carriage plate mold; and opening the mold after the foaming material is cured to obtain the compartment plate. The manufacturing process of the compartment plate is a novel wet-method closed-die integrated forming process, when the die is selected for use, the die is manufactured and used according to the structure of the application device, and meanwhile, the foaming material is filled in the closed die, so that the manufactured compartment plate is a non-planar special-shaped compartment plate, is closer to the line of the application device, and can be fully attached to the application device, such as a refrigerator car body. Meanwhile, when different carriage plates are assembled in a splicing mode, splicing gaps are small, the assembling difficulty is reduced, too many gaps are not prone to being generated, the heat insulation performance of a carriage body or a carriage is improved, and the requirement for high-quality transportation is further met.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing in more detail embodiments of the present application with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings, like reference numbers generally indicate like parts or steps.
Fig. 1 is a schematic flow chart illustrating a manufacturing process of a compartment plate according to an embodiment of the present disclosure.
Fig. 2 is a partial schematic flow chart illustrating a manufacturing process of a carriage plate according to another embodiment of the present disclosure.
Fig. 3 is a partial schematic flow chart of a manufacturing process of a compartment plate according to another embodiment of the present disclosure.
Fig. 4 is a partial cross-sectional view of a compartment panel according to an embodiment of the present application.
Fig. 5 is a block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise. In the embodiment of the present application, all directional indicators (such as up, down, left, right, front, rear, top, bottom \8230;) are used only to explain the relative positional relationship between the components, the motion, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Summary of the application
Further analysis of the technical problems in the background art by the applicant has revealed that:
cold chain conveyors generally require thermal insulation due to the specific nature of the product they transport. Taking a refrigerator car as an example, the refrigerator car is used as a special vehicle for road transportation, is widely applied to transportation of goods such as vaccines, vegetables, meat and the like, is listed as a national strategic layer in the cold chain industry in recent years, improves the quality of refrigerator car products, and expands the manufacturing process route of a refrigerator car carriage plate to become the research and development focus of various refrigerator car manufacturers. The light passenger refrigerator car is used as an important category of refrigerator cars, solves the problems of cold chain urban distribution and last kilometer, can freely go in and out of places such as supermarkets, residential district underground garages and the like, and is flexible in transportation mode.
At present, the manufacturing process applied to the internal heat-insulation carriage body of the light passenger refrigerator car has the traditional manufacturing mode of the carriage plate, and even the carriage plate needs to be cut and spliced manually, so that a large number of gaps often exist in different carriage plates during splicing. Specifically, the process route generally adopted by the internal heat-insulation compartment body of the light passenger refrigerator car is as follows: the method comprises the steps of purchasing a glass fiber reinforced plastic skin, knife-coating the glass fiber reinforced plastic skin with unsaturated polyester resin or structural adhesive, placing a polyurethane or XPS (extruded polystyrene foam) foam board, and then assembling the glass fiber reinforced plastic skin with the structural adhesive and fasteners. The refrigerator car for light passenger manufactured by similar process has insufficient thermal insulation performance of the carriage body, and can not meet the transportation requirements of products such as special food, medicines and the like.
In addition, the carriage plate manufactured by the process has the following defects: 1. when the thermal insulation carriage plate adopts a dry bonding process, the manufactured carriage plate is easy to delaminate and crack, and the service life of the carriage body is short; 2. the manual cutting of the thermal insulation carriage plate of the light passenger refrigerator car generally needs manual cutting, the dimensional precision of the carriage plate is difficult to guarantee, a large number of gaps are easy to appear during splicing, sealant is required to be used for filling, and the situation of glue failure is easy to appear in the situation; 3. the common light passenger refrigerated van plate has heavier weight and can not meet the requirement of light weight of a car body; 4. the refrigerator van bodies on the market are generally easy to leak water, and a lot of impurities are easy to remain in gaps, so that the heat insulation performance of the van bodies is influenced, and the refrigerator van bodies are not easy to clean; 5. the spliced carriage plate can not be attached to the carriage wall, so that the internal space of the light bus can not be fully and effectively utilized, and the goods storage space is extruded.
In view of this, the present application provides a compartment plate, a manufacturing process thereof, and a refrigerator car, wherein the manufacturing process of the compartment plate specifically includes the following steps: prefabricating a carriage plate mold according to the three-dimensional model of the application device; after a release agent is coated in the compartment plate mold, a gel coat is sprayed; paving glass fiber fabric on the gel coat; spraying unsaturated polyester resin and chopped roving on the glass fiber fabric; closing the compartment plate mold; injecting foaming materials into a cavity of the closed carriage plate mold; and opening the mold after the foaming material is cured to obtain the compartment plate. The manufacturing process of the compartment plate is a novel wet-method closed-die integrated forming process, when a die is selected for use, the die is manufactured and used according to an application device, such as a car body, and the structure, and meanwhile, a foaming material is filled after the die is closed, so that the manufactured compartment plate is a non-planar-structure special-shaped compartment plate, is more close to lines of the application device, and can be fully attached to the application device. Meanwhile, when different carriage plates are assembled in a splicing mode, splicing gaps are small, the assembling difficulty is reduced, excessive gaps are not prone to being generated, the heat insulation performance of the carriage is improved, and the requirement for high-quality transportation is further met.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a schematic flow chart illustrating a manufacturing process of a compartment plate according to an embodiment of the present disclosure. As shown in fig. 1, the manufacturing process of the compartment plate may specifically include the following steps:
step 10: and prefabricating the compartment plate mold according to the three-dimensional model of the application device.
The application device refers to a device to which the compartment plate is applied, such as a refrigerator, an aviation case, a marine refrigeration compartment, a storage tank constant-temperature compartment, a refrigerated truck and the like. The process will be illustrated in the context of a refrigerated vehicle, and the application device may be a body of the refrigerated vehicle, and the three-dimensional model may be a digital model of the body, including, for example, the shape, size, and associated parameters of the body. The three-dimensional model preparation mould that combines the automobile body can make mould itself press close to the automobile body size more, and then makes the preparation of railway carriage or compartment board more be close to with the automobile body appearance, so reduces the follow-up technology degree of difficulty when splicing the railway carriage or compartment board. In addition, the obtained compartment plate product has good heat insulation performance, and perfect fit can be improved among different compartment plates, so that the requirement on sealing performance is met.
Step 20: and after a release agent is coated in the compartment plate mould, spraying a gel coat.
The release agent is a product for reducing the release difficulty of the compartment plate. The gel coat is a coloring thixotropic product which is formed by dispersing glass Fiber Reinforced Plastic (FRP) and table top finish paint in Unsaturated Polyester (UP) by adding pigments, thixotropic agents and the like. The mold release agent is coated in the grinding tool, which is beneficial to the mold release operation after the carriage plate is manufactured, and the gel coat is sprayed in the mold, so that a protective layer can be provided for the surface of the carriage plate, thereby reducing the corrosion of the carriage plate by external environment media in the use process and prolonging the service life of the carriage plate.
Step 30: and paving glass fiber fabric on the gel coat.
The glass fiber is an inorganic non-metallic material with excellent performance, and the glass fiber fabric is fabric made of the glass fiber. The glass fiber is coated on the surface of the gel coat in the die, so that the strength of the compartment plate can be improved, and the phenomenon of layering imagination and stripping of the compartment plate can be reduced.
Step 40: the unsaturated polyester resin and the chopped roving were sprayed on the glass fabric.
Unsaturated polyester resins are generally linear high molecular compounds having ester bonds and unsaturated double bonds, which are obtained by polycondensation of unsaturated dibasic acids and dihydric alcohols or saturated dibasic acids and unsaturated dihydric alcohols; the chopped roving is obtained by cutting long glass fiber into short glass fiber with length of 2.5-4cm by a blade. The unsaturated polyester resin is used as the structural matrix of the carriage plate outer skin, so that the carriage plate outer skin has better mechanical property, and the corrosion resistance of the carriage plate outer skin is improved. Meanwhile, the short-cut roving and the sprayed unsaturated polyester resin are mixed through the air flow, then the mixed unsaturated polyester resin and the short-cut roving are uniformly sprayed on a die, and the short-cut roving is utilized to fill gaps in the glass fiber fabric, so that the bubble retention is reduced, the strength of the compartment plate is further ensured, and the probability of generating empty drum is reduced.
Step 50: and closing the compartment plate mold.
And (4) closing the carriage plate mold by using turnover equipment and the like so as to inject foaming materials into the closed carriage plate mold.
Step 60: and injecting foaming materials into the cavity of the closed carriage plate mold.
The foaming material is a foaming material which is prepared by adding a catalyst, a foam stabilizer, a foaming agent and other auxiliary materials into raw materials such as plastic (PE, EVA and the like) and rubber and the like, and foaming the raw materials through physical foaming or crosslinking foaming, so that a large amount of fine foam is generated in the plastic and the rubber, the volume is increased, the density is reduced, the soft foaming material is light in weight and good in softness, and the soft foaming material has the functions of buffering, sound absorption, shock absorption, heat preservation, filtration and the like. Through the characteristics of the foaming material, the refrigerator car carriage plate with the heat preservation performance is formed, so that the heat preservation performance of the refrigerator car is improved.
Step 70: and opening the mold after the foaming material is cured to obtain the compartment plate.
And (4) curing the foaming material, and then opening the mold to obtain the special-shaped carriage plate with the heat preservation performance. After the compartment plates at different positions of the car body, such as the top plate, the bottom plate, the side plates and the like, are manufactured, trimming is carried out on the flash of each compartment plate. In addition, because each railway carriage or compartment board has all formed the dysmorphism that is close with the automobile body shape under the effect of customization railway carriage or compartment board mould, so each railway carriage or compartment board is when the concatenation installation, and the clearance between the railway carriage or compartment board of different positions is less, and the junction laminating is inseparabler, only need utilize sealed glue to seal the junction can, so can improve sealed effect, and then guarantee the heat insulating ability of refrigerator car, further satisfy the requirement of high-quality transportation.
In a possible implementation manner, fig. 2 is a partial schematic flow chart of a manufacturing process of a compartment plate according to another embodiment of the present application. As shown in fig. 2, step 30 (laying glass fiber fabric on gel coat) may further include the following steps:
step 301: and determining the specification of the glass fiber fabric according to the preset area of the compartment plate.
Because different positions of the same compartment plate may have different performance requirements, for example, the plate body near the connection position between the compartment plates has higher requirement on strength, and the plate body near the goods storage space of the vehicle body has higher requirement on heat insulation performance. Therefore, before the glass fiber fabric is paved, a plurality of preset areas can be divided according to the performance requirements of the compartment plate, and the glass fiber fabric with different specifications and different quantities is paved aiming at different preset areas, so that the glass fiber fabric can better adapt to the requirements of the compartment plate.
The specification of the glass fiber may be one or more of an alkali-free roving cloth, an intermediate-alkali non-twisted roving cloth, a chopped strand mat, a random roving cloth, and a continuous strand mat, and the specific use case depends on the specific application scenario, and it should be understood that the specification is only an exemplary example, and is not a further limitation to the glass fiber fabric.
Step 302: and paving the glass fiber fabric corresponding to the specification on the surface of the gel coat.
The glass fiber fabric is correspondingly paved according to different requirements of different positions of the compartment plate, so that the performance of the glass fiber fabric can be effectively exerted, and meanwhile, the strength performance, the impact resistance, the shear strength, the appearance and the like of the obtained compartment plate can be effectively improved, if the appearance of the compartment plate is smoother and cleaner, the probability of leaving glass fiber grains is reduced.
Specifically, the compartment plate mold in step 10 (prefabricating the compartment plate mold according to the three-dimensional model of the application device) may include a bottom mold and a cover mold, and both the bottom mold and the cover mold may be made of glass fiber reinforced plastics. Among them, the glass Fiber Reinforced Plastic (FRP), also called GFRP, is a fiber reinforced plastic, generally a reinforced plastic using glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix, and using glass fiber or its products as reinforcing material, and is called glass fiber reinforced plastic, or called glass fiber reinforced plastic. Selecting a glass fiber reinforced plastic mold, manufacturing the mold according to a three-dimensional model of a vehicle body structure, and respectively polishing and grinding the surfaces of the cover mold and the bottom mold after the manufacturing is finished to form a mirror surface effect. And finally, uniformly coating a special glass fiber reinforced plastic release agent on steel plates of the bottom die and the cover die, and after the surface of the die is fully dried, transferring to the next procedure. Through the steps, the carriage plate die has better mechanical property, corrosion resistance, high temperature resistance and the like, demolding after the subsequent carriage plate is manufactured is facilitated, and the appearance integrity of the carriage plate is improved.
In another possible implementation, as shown in fig. 2, the step 50 (clamping the panel mold) may further include the steps of:
step 501: and hoisting the cover mold to the position above the bottom mold, and closing the cover mold and the bottom mold.
Step 502: and the press locks the cover die and the bottom die after die assembly according to preset pressure.
And hoisting the cover mold above the bottom mold by using turnover equipment, closing the cover mold and the bottom mold, transferring the closed carriage plate mold to a main material platform, locking the cover mold and the bottom mold by using a press, and applying preset pressure to the cover mold and the bottom mold so as to form an injection cavity for the carriage plate mold.
Specifically, in one embodiment, the gel coat in step 20 (after applying the release agent in the compartment mold, spraying the gel coat) is preferably selected from m-phenyl neopentyl glycol gel coat. The matrix resin of the m-phenyl neopentyl glycol gel coat is neopentyl glycol/m-benzoic acid unsaturated polyester, and the gel coat has good mechanical property and weather resistance, and is particularly suitable for places with high requirements on weather resistance and water resistance, so that the weather resistance, the mechanical property and the like of the compartment plate are improved. Meanwhile, the spraying equipment of the gel coat can adopt spraying machine equipment for producing the solid rake, and the gel coat can be automatically fed. And then, a manual gel coat spraying mode can be selected, and after the spraying is finished, the thickness of the gel coat is measured by a thickness gauge so as to meet the design requirements and improve the related performance of the compartment plate.
Preferably, as shown in fig. 2, after step 30 (laying glass fiber fabric on gel coat), the manufacturing process of the compartment plate may further include the following steps:
step 31: and curing the gel coat in the compartment plate mold according to the preset curing temperature.
The preset curing temperature is the curing temperature suitable for the selected gel coat, and when the gel coat is the m-phenyl neopentyl glycol gel coat, the preset curing temperature can be set to be 35-40 ℃, and meanwhile, the step is realized by utilizing a drying room. The gel coat in the compartment plate die is heated and cured, so that the production efficiency is improved, and the gel coat is effectively and fully cured.
In a possible implementation manner, fig. 3 is a partial schematic flow chart of a manufacturing process of a compartment plate according to another embodiment of the present application. As shown in fig. 3, step 40 (spraying unsaturated polyester resin and chopped roving on the glass fabric) may further include the steps of:
step 401: and adding an accelerator into the unsaturated polyester resin and stirring to obtain a stirred material.
And (3) pumping a proper amount of unsaturated polyester resin from the resin preparation tank by using a diaphragm pump, adding the accelerator after pumping is finished, stirring, and stirring uniformly to wait for transfer.
Step 402: the stirred material was transferred to a feed tank.
Step 403: and preserving the heat of the stirred materials in the feeding tank according to the preset constant temperature to obtain the unsaturated polyester resin for injection.
The choice of whether to heat the unsaturated polyester resin in the supply tank, in combination with the temperature of the day of production, is made so that the resin is thermostatically maintained at the temperature required by the process, preferably at a temperature of 35 ± 2 ℃.
Step 404: and mixing the unsaturated polyester resin for spraying with the chopped roving, and spraying the mixed unsaturated polyester resin and the chopped roving on the glass fiber fabric.
And mixing the unsaturated polyester resin and the chopped roving through air flow, and then uniformly and manually spraying the mixed unsaturated polyester resin and the chopped roving on the surface of the glass fiber fabric to form a structural layer matrix of the outer skin.
In another possible implementation, the foaming material in step 60 (injecting the foaming material into the cavity of the closed compartment plate mold) may be black and white material or polyurethane foam. One of the main raw materials of the polyurethane thermal insulation material is polyurethane rigid foam combined polyether. The polyurethane rigid foam composite polyether is also called white material, and is called black and white material together with polymeric diphenylmethane diisocyanate. The black and white material is adopted as the foaming material, so that the compartment plate has the characteristics of heat insulation and preservation, light weight and low load, and simultaneously has excellent waterproof performance, and the obtained compartment plate has the characteristics of water resistance and heat preservation.
According to a second aspect of the present application, there is also provided a compartment plate, which is manufactured by using the manufacturing process of the compartment plate in any one of the above embodiments.
The compartment plate is prepared by the following steps:
prefabricating a carriage plate mold according to the three-dimensional model of the application device; after a release agent is coated in the compartment plate mold, a gel coat is sprayed; paving glass fiber fabric on the gel coat; spraying unsaturated polyester resin and chopped roving on the glass fiber fabric; closing the compartment plate mold; injecting foaming materials into a cavity of the closed carriage plate mold; and opening the mold after the foaming material is cured to obtain the compartment plate. The manufacturing process of the compartment plate is a novel wet-method closed-die integrated forming process, when the die is selected for use, the die is manufactured and used according to the structure of the vehicle body, and meanwhile, the foaming material is filled after the die is closed, so that the manufactured compartment plate is a special-shaped compartment plate with a non-planar structure, is closer to the line of the vehicle body, and can be fully attached to the vehicle body. Meanwhile, when different carriage plates are assembled in a splicing mode, splicing gaps are small, the assembling difficulty is reduced, excessive gaps are not prone to being generated, the heat insulation performance of the box body is improved, and the requirement for high-quality transportation is further met. Thus, the carriage plate also has the characteristics.
Fig. 4 is a partial cross-sectional view of a compartment panel according to an embodiment of the present application. As shown in fig. 4, the compartment plate is a compartment plate manufactured by the above manufacturing process.
It will be understood that the above-mentioned compartment plate can be used in refrigerated vehicles, and also in transport devices having strict requirements for temperature, such as freezers, aviation boxes, sea transport refrigerated compartments, storage tank constant temperature compartments, etc., which all produce the above-mentioned effect of strong heat-insulating property.
In a possible implementation manner, as shown in fig. 4, the compartment plate may include: gel coat layer 1, structural layer 2 and heat preservation 3. Wherein, the gel coat layer 1 is a layer body formed by spraying gel coat; the structural layer 2 is a layer body formed by glass fiber fabric, unsaturated polyester resin, chopped roving and the like, and the structural layer 2 is attached to the gel coat layer 1; the heat-insulating layer 3 is a layer body formed after the foaming material is cured, and the heat-insulating layer 3 is attached to the structural layer 2.
In addition, according to a third aspect of the present application, the present application also provides a refrigerator car comprising the above refrigerator car panel.
The refrigerator car that this application embodiment provided has included aforementioned refrigerator car railway carriage or compartment board, also possesses the beneficial effect that refrigerator car railway carriage or compartment board possessed, and it is no longer repeated here.
It should be noted that the refrigerator car may be not only a light passenger refrigerator car, but also other types of refrigerator cars, and the present application does not limit this.
Next, an electronic apparatus according to an embodiment of the present application is described with reference to fig. 5.
FIG. 5 illustrates a block diagram of an electronic device in accordance with an embodiment of the present application.
As shown in fig. 5, the electronic device 10 includes one or more processors 11 and memory 12.
The processor 11 may be a Central Processing Unit (CPU) or other form of processing unit having data processing capabilities and/or instruction execution capabilities, and may control other components in the electronic device 10 to perform desired functions.
Memory 12 may include one or more computer program products that may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, random Access Memory (RAM), cache memory (cache), and/or the like. The non-volatile memory may include, for example, read Only Memory (ROM), hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer readable storage medium and executed by the processor 11 to implement the above-described manufacturing process of the carriage plate of the various embodiments of the present application and/or other desired functions.
In one example, the electronic device 10 may further include: an input device 13 and an output device 14, which are interconnected by a bus system and/or other form of connection mechanism (not shown).
When the electronic device is a stand-alone device, the input means 13 may be a communication network connector for receiving the acquired input signals from the first device and the second device.
The input device 13 may also include, for example, a keyboard, a mouse, and the like.
The output device 14 may output various information including the determined distance information, direction information, and the like to the outside. The output devices 14 may include, for example, a display, speakers, a printer, and a communication network and its connected remote output devices, among others.
Of course, for simplicity, only some of the components of the electronic device 10 relevant to the present application are shown in fig. 5, and components such as buses, input/output interfaces, and the like are omitted. In addition, the electronic device 10 may include any other suitable components depending on the particular application.
As a third aspect of the present application, there is provided a computer-readable storage medium storing a computer program for executing the steps of:
prefabricating a compartment plate mold according to a three-dimensional model of the vehicle body; spraying gel coats in the compartment plate mould; paving glass fiber fabric on the gel coat; spraying unsaturated polyester resin and chopped roving on the glass fiber fabric; closing the compartment plate mold; injecting foaming materials into a cavity of the closed carriage plate mold; and opening the mold after the foaming material is cured to obtain the carriage plate.
In addition to the methods and apparatus described above, embodiments of the present application may also be a computer program product comprising computer program information which, when executed by a processor, causes the processor to perform the steps in the method of manufacturing a carriage plate according to various embodiments of the present application described in the present specification.
The computer program product may be used to write program code for performing the operations of embodiments of the present application in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server.
Furthermore, embodiments of the present application may also be a computer readable storage medium having stored thereon computer program information which, when executed by a processor, causes the processor to perform the steps in the manufacturing process method of a compartment plate according to various embodiments of the present application.
A computer-readable storage medium may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may include, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the foregoing disclosure is not intended to be exhaustive or to limit the disclosure to the precise details disclosed.
The block diagrams of devices, apparatuses, systems referred to in this application are only given as illustrative examples and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by one skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".
It should also be noted that in the devices, apparatuses, and methods of the present application, the components or steps may be decomposed and/or recombined. These decompositions and/or recombinations are to be considered as equivalents of the present application.
Claims (11)
1. A manufacturing process of a compartment plate is characterized by comprising the following steps:
prefabricating a carriage plate mold according to the three-dimensional model of the application device;
after a release agent is coated in the compartment plate mold, a gel coat is sprayed;
paving a glass fiber fabric on the gel coat;
spraying an unsaturated polyester resin and chopped roving on the glass fiber fabric;
closing the compartment plate mold;
injecting foaming materials into a cavity of the closed carriage plate mold;
and opening the mold after the foaming material is cured to obtain the compartment plate.
2. The manufacturing process of the compartment plate of claim 1, wherein the step of coating the gel coat with glass fiber fabric comprises the following steps:
determining the specification of the glass fiber fabric according to the preset area of the compartment plate;
and paving a glass fiber fabric corresponding to the specification on the surface of the gel coat.
3. The manufacturing process of the compartment plate according to claim 1, wherein in the step of prefabricating the compartment plate mold according to the three-dimensional model of the application device, the compartment plate mold comprises:
a bottom die and a cover die;
the bottom die and the cover die are made of glass fiber reinforced plastics.
4. The manufacturing process of a carriage plate as claimed in claim 3, wherein the closing of the carriage plate mold comprises:
hoisting the cover mold above the bottom mold, and closing the cover mold and the bottom mold;
and the press locks the cover die and the bottom die after die assembly according to preset pressure.
5. The manufacturing process of the compartment plate according to claim 1, wherein in the step of spraying the gel coat after the step of coating the release agent in the compartment plate mold, the gel coat is:
and (3) coating m-phenyl neopentyl glycol with a gel coat.
6. The manufacturing process of the compartment plate of claim 5, wherein after the step of spraying the gel coat after the step of coating the release agent in the compartment plate mold, the manufacturing process further comprises:
and curing the gel coat in the compartment plate mold according to a preset curing temperature.
7. The manufacturing process of the compartment plate of claim 1, wherein the spraying of the unsaturated polyester resin and the chopped roving on the glass fabric comprises:
adding an accelerant into the unsaturated polyester resin and stirring to obtain a stirred material;
transferring the stirred material to a feed tank;
preserving the heat of the stirred materials in the feeding tank according to a preset constant temperature to obtain the unsaturated polyester resin for injection;
and mixing the unsaturated polyester resin for spraying with the chopped roving, and spraying the mixed unsaturated polyester resin and chopped roving on the glass fiber fabric.
8. The manufacturing process of the carriage plate as claimed in claim 1, wherein in the step of injecting the foaming material into the cavity of the carriage plate mold after the mold closing, the foaming material is black and white material.
9. A compartment plate, characterized in that it is manufactured by the process for manufacturing a compartment plate according to any one of claims 1 to 8.
10. The carriage panel of claim 9, comprising:
a gel coat layer;
the structural layer is attached to the gel coat layer and comprises a glass fiber fabric, unsaturated polyester resin and chopped roving; and
the heat preservation layer is attached to the structural layer and comprises cured foaming materials.
11. A refrigerated vehicle, comprising:
the panel of claim 9 or 10 disposed on a body of the refrigerated vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211230418.2A CN115674734A (en) | 2022-09-30 | 2022-09-30 | Compartment plate, manufacturing process thereof and refrigerator car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211230418.2A CN115674734A (en) | 2022-09-30 | 2022-09-30 | Compartment plate, manufacturing process thereof and refrigerator car |
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| CN115674734A true CN115674734A (en) | 2023-02-03 |
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| CN202211230418.2A Pending CN115674734A (en) | 2022-09-30 | 2022-09-30 | Compartment plate, manufacturing process thereof and refrigerator car |
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