CN110549533A - Freezer cabinet installation method - Google Patents
Freezer cabinet installation method Download PDFInfo
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- CN110549533A CN110549533A CN201810541675.5A CN201810541675A CN110549533A CN 110549533 A CN110549533 A CN 110549533A CN 201810541675 A CN201810541675 A CN 201810541675A CN 110549533 A CN110549533 A CN 110549533A
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- inner container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/04—Making preforms by assembling preformed material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1223—Joining preformed parts which have previously been filled with foam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/35—Component parts; Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/35—Component parts; Details or accessories
- B29C44/351—Means for preventing foam to leak out from the foaming device during foaming
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/08—Copolymers of styrene
- C08J2325/10—Copolymers of styrene with conjugated dienes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
- C08J2423/28—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/06—Sulfur
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
Abstract
The invention relates to the field of electromechanical installation, and provides a freezer cabinet installation method aiming at the problem of reduced sealing performance caused by welding, wherein the technical scheme is as follows: including (1) panel shaping, (2) shell, inner bag and heat preservation are assembled, with the preliminary location concatenation of each inner bag board of inner bag, with the preliminary location concatenation of each outer casing board of shell, at the junction of each inner bag board and the not crosslinked thermosetting plastics of junction coating of each outer casing board, thermosetting plastics are sticky liquid when not crosslinked, then cover the heat preservation of not foaming on the inner bag surface, again with the outer shell cover outside the inner bag, (3) the heating is with foaming heat preservation and connect shell and inner bag, (4) spare part is assembled. The non-crosslinked thermosetting plastic permeates into gaps at the joints of the adjacent outer shell plates and the adjacent inner container plates, and after the heating crosslinking, the thermosetting plastic completely blocks the gaps at the joints of the adjacent outer shell plates and the adjacent inner container plates, so that the sealing effect is better.
Description
Technical Field
The invention relates to the field of electromechanical installation, in particular to a freezer cabinet installation method.
Background
a freezer is a low-temperature refrigeration and freezing device for achieving deep freezing effect. Commonly referred to as freezers, etc. Freezer cabinets are used in a wide variety of applications, from the food industry to the medical industry and the like. The refrigeration space of the quick-freezing cabinet is from-45 ℃ to 0 ℃ according to different use environments and use effect requirements, and the refrigeration space has respective intervals.
The refrigerating cabinet on the market comprises a shell, an inner container, a heat insulation layer clamped between the shell and the inner container and refrigerating equipment for refrigerating the inner container, wherein a plurality of plates are connected through welding to form the shell with an opening and the inner container in the preparation process of the refrigerating cabinet, and after the shell, the inner container and the heat insulation layer are assembled, parts such as a cabinet door are assembled.
But a plurality of panel are at the welded in-process, the welding misoperation that appears leads to the welding seam to produce the condition such as sand eye unavoidably for the leakproofness of adjacent panel junction is very reduced, probably leads to in the use cold air to reveal, increases the energy consumption, still improves the space.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a freezer cabinet installation method which has the advantage of good sealing performance.
in order to achieve the purpose, the invention provides the following technical scheme:
A freezer cabinet installation method comprising the steps of:
(1) Forming a plate;
(2) The shell, the inner container and the heat-insulating layer are assembled, and the assembling method specifically comprises the following steps:
preliminarily positioning and splicing the inner liner plates of the inner liner, preliminarily positioning and splicing the outer shell plates of the shell, coating non-crosslinked thermosetting plastic at the joint of the inner liner plates and the joint of the outer shell plates, wherein the thermosetting plastic is in a sticky liquid state when not crosslinked, covering a non-foamed heat insulation layer on the outer surface of the inner liner, and then sleeving the outer shell outside the inner liner;
(3) The heating is with foaming heat preservation and connect shell and inner bag, specifically as follows:
the inner container and the shell are placed in a heating box with the openings facing downwards and heated to enable the heat-insulating layer to foam and the thermosetting plastic to be crosslinked;
(4) And (5) assembling parts.
by adopting the technical scheme, the joints of the adjacent outer shell plates and the joints of the adjacent inner container plates are coated with the non-crosslinked thermosetting plastic, the thermosetting plastic is heated and quickly crosslinked while heating and foaming are carried out, the adjacent outer shell plates are connected by using the thermosetting plastic, the non-crosslinked thermosetting plastic is enabled to permeate into the gaps at the joints of the adjacent outer shell plates and the adjacent inner container plates because the thermosetting plastic is in a sticky liquid state before being crosslinked, and after heating and crosslinking, the thermosetting plastic completely blocks the gaps at the joints of the adjacent outer shell plates and the adjacent inner container plates, so that the sealing effect is good, the condition of cold air leakage in practical use is reduced, and the energy is saved and the environment is protected; meanwhile, the thermosetting plastic is adopted to utilize the better rigidity of the thermosetting plastic, so that the stability of the thermosetting plastic for connecting the outer shell plate and the inner container plate is improved, and the stability of the outer shell and the inner container is ensured; through placing shell and inner bag opening orientation in the heating cabinet heating for heat preservation foaming and thermosetting plastics cross-linking go on in step, fix a position shell and inner bag through the heat preservation foaming with automatic simultaneously, convenient operation, efficiency is higher.
Preferably, in the step (2), preliminary positioning and splicing are performed through spot welding, and the adjacent shell plates are preliminarily positioned and spliced through spot welding.
Adopt above-mentioned technical scheme, carry out preliminary location concatenation to housing plate and inner bag board through spot welding, utilize spot welding to provide stable engaging force, the machining precision requirement is lower simultaneously, and the operation of being convenient for improves the connection stability of adjacent housing plate and adjacent inner bag board simultaneously through spot welding and thermosetting plastics cooperation, guarantees the stability of shell and inner bag.
Preferably, in the step (2), an unvulcanized sealing strip is pasted at the joint of the adjacent inner container plates, and the unvulcanized sealing strip is positioned on the outer surface of the inner container.
By adopting the technical scheme, the connecting part of the inner container plates is plugged by the unvulcanized sealing strips, the sealing effect is further improved, meanwhile, the unvulcanized sealing strips are positioned on the outer surface of the inner container, when the foaming heat preservation layer is heated, the unvulcanized sealing strips are extruded by the heat preservation layer, so that the unvulcanized sealing strips are uniformly paved at the connecting part of the adjacent inner container plates, the vulcanized sealing strips are tightly connected with the inner container, and the effect of increasing the connecting force of the adjacent inner container plates is achieved.
preferably, in the step (2), an unvulcanized sealing tape is pasted at the joint of the adjacent outer shell plates, and the unvulcanized sealing tape is positioned on the inner surface of the outer shell.
By adopting the technical scheme, the sealing effect is further improved by plugging the joints of the outer shell plates through the unvulcanized sealing strips, and meanwhile, because the unvulcanized sealing strips are positioned on the inner surface of the outer shell, when the foaming heat-insulating layer is heated, the unvulcanized sealing strips are extruded by the heat-insulating layer, so that the unvulcanized sealing strips are uniformly paved at the joints of the adjacent outer shell plates, the vulcanized sealing strips are tightly connected with the outer shell, and the effect of increasing the connecting force of the adjacent inner container plates is achieved.
preferably, in the step (3), after the bottom of the heating box is filled with the talcum powder, the shell and the inner container are placed on the talcum powder with the openings facing downwards.
By adopting the technical scheme, the talcum powder is fully sprayed at the bottom of the heating box, so that the friction force between the bottom of the heating box and the shell and the friction force between the bottom of the heating box and the inner container are greatly reduced, and the relative position between the shell and the inner container is easily adjusted when the heat-insulating layer is foamed, so that the shell and the inner container are positioned in the foaming process.
preferably, 1% by mass of glass fiber is added into the thermosetting plastic.
By adopting the technical scheme, the glass fiber is added into the thermosetting plastic to reinforce the thermosetting plastic, so that the connecting force of the crosslinked thermosetting plastic to the adjacent outer shell plates and the adjacent inner container plates is increased, and the stability of the outer shell and the inner container is improved.
Preferably, the thermosetting plastic is an unsaturated polyester resin.
by adopting the technical scheme, the unsaturated polyester resin can be cured at normal temperature and normal pressure, so that after the shell and the liner are placed in the heating box, the unprotected polyester resin is rapidly cured by heating, the curing efficiency is improved, and the assembly efficiency is further improved.
Preferably, 0.5 to 1 mass percent of cobalt salt is added into the sealing strip.
By adopting the technical scheme, the connecting force of the sealing strip and metal is improved by heating the cobalt salt in the sealing strip, so that the connecting stability of the sealing strip and the shell or the inner container is improved, and the stability of the shell and the inner container is improved while the sealing performance is improved.
Preferably, the sealing strip is made of butyl rubber and the vulcanization system is a sulfur vulcanization system.
by adopting the technical scheme, better air tightness is provided through the butyl rubber, a sulfur vulcanization system is utilized to enable the application range of the vulcanization temperature to be larger, and the adjustable range of the vulcanization speed of the sealing strip is larger, so that the sealing strip is convenient to be matched with thermosetting resin curing and heat insulation layer foaming.
Preferably, the heat-insulating layer is composed of the following component materials, wherein the components are represented by mass parts:
70-80 parts of a polystyrene butadiene copolymer;
20-30 parts of brominated butyl rubber;
4-5 parts of sulfur;
2-3 parts of an accelerator;
2-3 parts of a foaming agent;
1-2 parts of foam stabilizer.
By adopting the technical scheme, the rigidity brought by the benzene ring in the polystyrene butadiene copolymer is utilized, so that the heat-insulating layer has better rigidity strength, the liner and the shell are connected through better support, the overall stability is improved, meanwhile, brominated butyl rubber is utilized to provide improved air tightness, the overall air tightness is further increased, the heat-insulating effect after refrigeration is improved, and the heat-insulating structure is energy-saving and environment-friendly.
in conclusion, the invention has the following beneficial effects:
1. Because the thermosetting plastic is in a sticky liquid state before being crosslinked, the uncrosslinked thermosetting plastic can permeate into the gaps at the joints of the adjacent outer shell plates and the adjacent inner container plates, and after being heated and crosslinked, the thermosetting plastic can completely block the gaps at the joints of the adjacent outer shell plates and the adjacent inner container plates, so that the sealing effect is better;
2. The thermosetting plastic is adopted to utilize the better rigidity of the thermosetting plastic, so that the stability of the thermosetting plastic for connecting the outer shell plate and the inner container plate is improved, and the stability of the outer shell and the inner container is ensured;
3. Provide stable engaging force through spot welding, through spot welding and thermosetting plastics cooperation, improve the connection stability of adjacent shell board and adjacent inner bag board, guarantee the stability of shell and inner bag.
4. By adding the glass fiber into the thermosetting plastic, the connecting force of the crosslinked thermosetting plastic to the adjacent outer shell plates and the adjacent inner container plates is increased, and the stability of the outer shell and the inner container is improved.
5. rigidity brought by benzene rings in polystyrene butadiene copolymer is utilized, so that the heat-insulating layer is better supported and connected with the inner container and the shell, the brominated butyl rubber is utilized to provide improved air tightness, the integral air tightness is improved, the heat-insulating effect after refrigeration is improved, and the heat-insulating device is energy-saving and environment-friendly.
Detailed Description
The present invention will be described in detail with reference to examples.
example 1
A freezer cabinet installation method comprising the steps of:
(1) And (3) forming the plate, which comprises the following steps:
Transporting panel to laser cutting machine department, cutting into housing plate and inner bag board through laser cutting, then transporting housing plate and inner bag board to stamping equipment department and carrying out the punching press in order to carry out the finish machining and form the slab muscle to the face of housing plate and inner bag board, place the housing plate and the inner bag board branch case at different positions and transport to the process down.
(2) the shell, the inner container and the heat-insulating layer are assembled, and the assembling method specifically comprises the following steps:
And each shell plate of the shell is preliminarily fixed through spot welding, and each shell plate is placed on the male die for positioning during spot welding.
the inner container plates of the inner container are preliminarily fixed through spot welding, and during spot welding, the inner container plates are placed on the male die to be positioned.
The joint of the adjacent shell plates is spot-welded once every 30cm, and the joint of the adjacent inner container plates is spot-welded once every 30 cm.
And coating the non-crosslinked thermosetting plastic in a viscous liquid state on the joint of the adjacent inner container plates on the inner container after spot welding, wherein the outer surface of the inner container is coated for 5 times, and the inner surface of the inner container is coated for 3 times.
After standing for 30 minutes, adhering an uncrosslinked sealing strip on the outer surface of the inner container along the length direction of the connecting seam of the adjacent inner container plates, and then adhering an unfoamed heat-insulating layer on the outer surface of the inner container.
and (3) coating uncrosslinked thermosetting plastic in a viscous liquid state on the joints of the adjacent shell plates on the shell subjected to spot welding, wherein the outer surface of the shell is coated for 5 times, and the inner surface of the shell is coated for 3 times.
Standing for 30 minutes, adhering non-crosslinked sealing strips on the inner surface of the shell along the length direction of the connecting seam of the adjacent shell plates, and then sleeving the shell on the inner container adhered with the heat insulation layer, wherein the opening direction of the shell is consistent with the opening direction of the inner container.
through the non-crosslinked thermosetting plastics of the thick liquid form of coating in adjacent inner bag board junction and shell plate junction for thermosetting plastics infiltrates in adjacent inner bag board joint seam and the adjacent shell plate joint seam, makes the joint seam of the adjacent inner bag board of thermosetting plastics sealing after the crosslinking and the joint seam of adjacent shell plate, improves the leakproofness.
(3) the heating is with foaming heat preservation and connect shell and inner bag, specifically as follows:
the inner surface of the bottom of the heating box is fully sprinkled with talcum powder, then the openings of the shell and the inner container are downward and placed in the heating box, and the heating box is started to heat.
The heating temperature was 150 ℃ and the heating time was 30 minutes.
the uncrosslinked thermosetting plastic is heated by heating to enable the crosslinking speed to be fast, and simultaneously, the uncrosslinked sealing strip is crosslinked and the heat insulation layer is foamed.
The outer surface of the heat-insulating layer is abutted against the inner surface of the shell when the heat-insulating layer is foamed, when the inner container and the shell are in improper positions, the heat-insulating layer is stressed unevenly, the inner container and the shell are driven to slide on the talcum powder by utilizing the reaction force, so that the relative position of the inner container and the shell is adjusted, and the positioning is realized.
Extrude the sealing strip through the heat preservation foaming time for the better laminating of sealing strip improves gas tightness and stability at the internal surface of shell and the surface of inner bag.
(4) the parts are assembled as follows:
The cabinet body is formed after the shell, the inner container and the heat preservation layer are integrally heated, then the cabinet door is hinged to the opening of the cabinet body, the cabinet body is connected with the support legs, the door lock is installed, and finally the refrigeration equipment is connected to the outer wall of the cabinet body and is communicated with the inner container to refrigerate the inner container, so that the installation is completed.
In this embodiment, the thermosetting plastic is unsaturated polyester resin, and 1% by mass of glass fiber is added to the thermosetting plastic.
Utilize glass fiber to the reinforcement of thermosetting plastics, the joint force when increasing thermosetting plastics and connecting adjacent shell board or adjacent inner bag board improves stability.
The sealing strip in the embodiment is composed of the following component materials, wherein the components are represented by mass parts:
80 parts of butyl rubber; 20 parts of natural rubber; 20 parts of carbon black; 3 parts of sulfur; and 1 parts of an accelerator D.
0.5 percent of cobalt salt is added into the sealing strip by mass percent.
In this embodiment, the thermal insulation layer is composed of the following component materials, wherein each component is represented by mass fraction:
70 parts of a polystyrene butadiene copolymer; 30 parts of brominated butyl rubber; 4 parts of sulfur; NS2 parts of an accelerator; 2 parts of a foaming agent; 1 part of foam stabilizer.
The vulcanization speed of the sealing strip is reduced through the accelerator D, and the vulcanization speed of the heat-insulating layer is improved through the accelerator NS, so that the sealing strip is deformed and tightly covered on the inner container and the outer shell and then crosslinked by producing enough strength to extrude the sealing strip after the heat-insulating layer is foamed.
Because the thermosetting plastic is unsaturated polyester resin, the thermosetting plastic is rapidly crosslinked and cured in a heating environment, so that the condition that the thermosetting plastic is positioned in the connecting seams between the adjacent inner container plates and the outer shell plate when the sealing strip is extruded is avoided.
the benzene ring in the polystyrene butadiene copolymer is used for providing enough rigidity, so that the support of the heat-insulating layer on the shell and the liner is increased, and the stability is improved.
The joint force of the sealing strip and metal is improved by using cobalt salt, so that the sealing strip is better connected to the inner container and the outer shell, and the air tightness is improved.
Example 2
The difference from example 1 is that 1% of cobalt salt is added to the seal.
the peel strength of the weatherstrip of example 1 was 3.5MPa, and that of the weatherstrip of example 2 was 3.9MPa, and it was found that the peel strength of the weatherstrip increased with the increase in the amount of the cobalt salt.
The peel strength was measured as follows:
Make unvulcanized sealing strip 3 thickness for 1mm, length is 100mm, the width is 10 mm's sample, tile the sample on the steel sheet, cellophane is placed to the one end of sample, cellophane is located between sample and the steel sheet, cellophane separates sample tip 10mm long part and steel sheet completely, through the vulcanizing press of flat sheet to steel sheet and sample intensification vulcanization, detect through tensile testing machine after the cooling, sample tip and the steel sheet tip that are kept apart by cellophane centre gripping respectively in order to stretch and then peel off sample and steel sheet on two anchor clamps of tensile testing machine, obtain data.
example 3
The difference from the example 1 is that the heat-insulating layer is composed of the following component materials, wherein the components are expressed by mass fraction:
75 parts of a polystyrene butadiene copolymer; 25 parts of brominated butyl rubber; 4 parts of sulfur; NS2 parts of an accelerator; 2 parts of a foaming agent; 1 part of foam stabilizer.
example 4
The difference from the example 1 is that the heat-insulating layer is composed of the following component materials, wherein the components are expressed by mass fraction:
80 parts of a polystyrene butadiene copolymer; 20 parts of brominated butyl rubber; 5 parts of sulfur; NS3 parts of an accelerator; 3 parts of a foaming agent; 2 parts of foam stabilizer.
the compression strength of the insulating layer in the embodiment 1 is 3.2 MPa;
Example 3 the compressive strength of the insulating layer is 3.8 MPa;
Example 4 the compressive strength of the insulating layer was 4.5 MPa.
therefore, the compressive strength of the heat-insulating layer is increased along with the increase of the dosage of the polystyrene butadiene copolymer, and the stability of the supporting liner and the shell is further improved.
The compression strength test method is as follows:
After foaming and vulcanizing the heat insulation layer, supporting a square sample with the length, width and height of 10cm, testing the sample in a state that the upper surface of the sample is horizontally arranged, applying pressure to the sample through a pressure testing machine, and recording data when the sample is compressed by 1 cm.
The pressure applying part of the pressure testing machine for extruding the sample is a steel plate with the length and the width of 10cm, and the steel plate just covers the upper surface of the sample.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. a freezer cabinet installation method is characterized in that: the method comprises the following steps:
(1) Forming a plate;
(2) The shell, the inner container and the heat-insulating layer are assembled, and the assembling method specifically comprises the following steps:
Preliminarily positioning and splicing the inner liner plates of the inner liner, preliminarily positioning and splicing the outer shell plates of the shell, coating non-crosslinked thermosetting plastic at the joint of the inner liner plates and the joint of the outer shell plates, wherein the thermosetting plastic is in a sticky liquid state when not crosslinked, covering a non-foamed heat insulation layer on the outer surface of the inner liner, and then sleeving the outer shell outside the inner liner;
(3) The heating is with foaming heat preservation and connect shell and inner bag, specifically as follows:
The inner container and the shell are placed in a heating box with the openings facing downwards and heated to enable the heat-insulating layer to foam and the thermosetting plastic to be crosslinked;
(4) And (5) assembling parts.
2. a freezer cabinet installation method as claimed in claim 1 wherein: and (3) in the step (2), performing primary positioning splicing through spot welding, and performing primary positioning splicing on adjacent shell plates through spot welding.
3. A freezer cabinet installation method as claimed in claim 2 wherein: and (3) in the step (2), an unvulcanized sealing strip is pasted at the joint of the adjacent inner container plates, and the unvulcanized sealing strip is positioned on the outer surface of the inner container.
4. A freezer cabinet installation method as claimed in claim 3 wherein: and (3) in the step (2), adhering unvulcanized sealing strips at the joints of the adjacent outer shell plates, wherein the unvulcanized sealing strips are positioned on the inner surface of the outer shell.
5. a freezer cabinet installation method as claimed in claim 4 wherein: in the step (3), after the bottom of the heating box is fully sprayed with the talcum powder, the shell and the inner container are placed on the talcum powder with the openings facing downwards.
6. A freezer cabinet installation method according to any one of claims 1 to 5 wherein 1% by weight of glass fibres are incorporated in the thermosetting plastic.
7. A freezer cabinet installation method as claimed in claim 6 wherein: the thermosetting plastic is unsaturated polyester resin.
8. A freezer cabinet installation method as claimed in any one of claims 3 to 5 wherein: and 0.5-1% of cobalt salt by mass is added into the sealing strip.
9. A freezer cabinet installation method as claimed in claim 8 wherein: the sealing strip is made of butyl rubber and the vulcanization system is a sulfur vulcanization system.
10. A freezer cabinet installation method as claimed in claim 6 wherein: the heat-insulating layer is composed of the following component materials in parts by mass:
70-80 parts of a polystyrene butadiene copolymer;
20-30 parts of brominated butyl rubber;
4-5 parts of sulfur;
2-3 parts of an accelerator;
2-3 parts of a foaming agent;
1-2 parts of foam stabilizer.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1271644A (en) * | 1999-04-23 | 2000-11-01 | Lg电子株式会社 | Method for manufacturing vacuum heat insulating material core |
| US20060010884A1 (en) * | 2001-01-19 | 2006-01-19 | Crane Plastics Company Llc | Cooling of extruded and compression molded materials |
| JP2006194543A (en) * | 2005-01-14 | 2006-07-27 | Nagase Chemtex Corp | Method of manufacturing heat exchanger |
| CN101735497A (en) * | 2009-12-09 | 2010-06-16 | 浙江仕峰实业有限公司 | Physical foaming ethane-butadiene rubber composite capable of being injected and crosslinked, as well as preparation method, product and processing method thereof |
| CN101952677A (en) * | 2008-02-19 | 2011-01-19 | Bsh博世和西门子家用器具有限公司 | Refrigerating appliance, method and device for the production thereof |
| CN102027279A (en) * | 2008-05-13 | 2011-04-20 | 汉高两合股份公司 | Connection of tubes using thermally curable adhesives |
| CN102218819A (en) * | 2011-03-08 | 2011-10-19 | 福建赛特新材股份有限公司 | Method for sticking vacuum thermal insulation slabs and method for producing incubator internally comprising vacuum thermal insulation slabs |
| CN102878750A (en) * | 2012-10-23 | 2013-01-16 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN103047818A (en) * | 2012-12-10 | 2013-04-17 | 合肥美的荣事达电冰箱有限公司 | Refrigerator, door thereof and manufacturing method of door |
| US20140353317A1 (en) * | 2013-06-03 | 2014-12-04 | Sonoco Development, Inc. | Thermally Insulated VIP Sandwich Shipper and Method of Making Same |
| US20150129176A1 (en) * | 2009-10-13 | 2015-05-14 | Sonoco Development, Inc. | Thermally-controlled packaging device and method of making |
| WO2017067805A1 (en) * | 2015-10-19 | 2017-04-27 | Basf Se | Sandwich structure including a vip and method for producing the same |
-
2018
- 2018-05-30 CN CN201810541675.5A patent/CN110549533B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1271644A (en) * | 1999-04-23 | 2000-11-01 | Lg电子株式会社 | Method for manufacturing vacuum heat insulating material core |
| US20060010884A1 (en) * | 2001-01-19 | 2006-01-19 | Crane Plastics Company Llc | Cooling of extruded and compression molded materials |
| JP2006194543A (en) * | 2005-01-14 | 2006-07-27 | Nagase Chemtex Corp | Method of manufacturing heat exchanger |
| CN101952677A (en) * | 2008-02-19 | 2011-01-19 | Bsh博世和西门子家用器具有限公司 | Refrigerating appliance, method and device for the production thereof |
| CN102027279A (en) * | 2008-05-13 | 2011-04-20 | 汉高两合股份公司 | Connection of tubes using thermally curable adhesives |
| US20150129176A1 (en) * | 2009-10-13 | 2015-05-14 | Sonoco Development, Inc. | Thermally-controlled packaging device and method of making |
| CN101735497A (en) * | 2009-12-09 | 2010-06-16 | 浙江仕峰实业有限公司 | Physical foaming ethane-butadiene rubber composite capable of being injected and crosslinked, as well as preparation method, product and processing method thereof |
| CN102218819A (en) * | 2011-03-08 | 2011-10-19 | 福建赛特新材股份有限公司 | Method for sticking vacuum thermal insulation slabs and method for producing incubator internally comprising vacuum thermal insulation slabs |
| CN102878750A (en) * | 2012-10-23 | 2013-01-16 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN103047818A (en) * | 2012-12-10 | 2013-04-17 | 合肥美的荣事达电冰箱有限公司 | Refrigerator, door thereof and manufacturing method of door |
| US20140353317A1 (en) * | 2013-06-03 | 2014-12-04 | Sonoco Development, Inc. | Thermally Insulated VIP Sandwich Shipper and Method of Making Same |
| WO2017067805A1 (en) * | 2015-10-19 | 2017-04-27 | Basf Se | Sandwich structure including a vip and method for producing the same |
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