CN112743964A - Preparation process of refrigerator bottom plate - Google Patents
Preparation process of refrigerator bottom plate Download PDFInfo
- Publication number
- CN112743964A CN112743964A CN201911035813.3A CN201911035813A CN112743964A CN 112743964 A CN112743964 A CN 112743964A CN 201911035813 A CN201911035813 A CN 201911035813A CN 112743964 A CN112743964 A CN 112743964A
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- CN
- China
- Prior art keywords
- bottom plate
- refrigerator
- blank
- refrigerator bottom
- steps
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B32B43/00—Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
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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
- F25D23/00—General constructional features
-
- 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
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
-
- 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
- B32B2509/00—Household appliances
- B32B2509/10—Refrigerators or refrigerating equipment
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a preparation process of a refrigerator bottom plate, which comprises the following steps: selecting a material which is formed by sequentially compounding a carbon fiber felt layer, a PE film layer and an aluminum foil layer as a preparation raw material of a refrigerator bottom plate; unfolding the bottom plate of the refrigerator to a flat plate state, wherein 60% -70% of the thickness of the material is deducted during the unfolding calculation at the folding angle; according to the length and width value of the refrigerator bottom plate which is unfolded into a flat plate state, a square blank with a corresponding size is cut at the whole material commercial cutting position, and the length and width value of the blank is 15-25 mm larger than the length and width value of the unfolded refrigerator bottom plate on one side; putting the cut blank into a special die to be punched and formed; and (4) bending and forming the blank with the punched appearance in a bending machine. By adopting the process for manufacturing the refrigerator bottom plate, the new material can adapt to the forming of the irregular shape of the refrigerator bottom plate, the influence of different extensibility of the new material on the size of the refrigerator bottom plate is solved, and the design size of the refrigerator bottom plate is ensured.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a preparation process of a refrigerator bottom plate.
Background
Refrigerator bottom plates are generally divided into two categories: one is a galvanized steel bottom plate, which is mainly used for top-grade refrigerators or large refrigerators, and the common refrigerators do not consider using because of high price. The combined part of PP hollow board and galvanized steel board is mainly used in middle and low end refrigerator and small refrigerator and has lower cost than that of steel bottom board.
With the concern on the safety performance of the refrigerator, a new requirement is provided for the flame retardant property of the refrigerator bottom plate, and the galvanized steel bottom plate can meet the flame retardant requirement but is expensive; the price of the combined bottom plate of the PP hollow plate and the galvanized steel plate is moderate, but the new flame-retardant requirement is difficult to achieve. At present, I develops a new material capable of replacing a galvanized steel bottom plate and a combined bottom plate of a PP hollow plate and a galvanized steel plate, but how to prepare a method with the size and the stability meeting the requirements of a refrigerator bottom plate by using the new material is invented and needed to be solved.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the invention aims to provide a preparation process of a refrigerator bottom plate.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a preparation process of a refrigerator bottom plate comprises the following steps:
s1, selecting a material formed by sequentially compounding a carbon fiber felt layer, a PE film layer and an aluminum foil layer as a preparation raw material of a refrigerator bottom plate; unfolding the bottom plate of the refrigerator to a flat plate state, wherein 60% -70% of the thickness of the material is deducted during the unfolding calculation at the folding angle;
s2, according to the length and width value of the refrigerator bottom plate which is unfolded into a flat plate state, cutting a square blank with a corresponding size at the position of the whole material, wherein the length and width value of the blank is 15-25 mm larger than that of the unfolded refrigerator bottom plate on one side;
s3, putting the cut blank into a special die to be punched and molded;
and S4, bending and forming the blank with the punched appearance in a bending machine.
Compared with the prior art, the invention has the beneficial effects that:
1. the new material is used for manufacturing the refrigerator bottom plate according to the process, the production process is simple, the preparation cost and the material cost of the refrigerator bottom plate are reduced, and the flame retardant property of the refrigerator is improved;
2. by adopting the process for manufacturing the refrigerator bottom plate, the new material can adapt to the forming of the irregular shape of the refrigerator bottom plate, the influence of different extensibility of the new material on the size of the refrigerator bottom plate is solved, and the design size of the refrigerator bottom plate is ensured.
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 described in 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 diagram of a new material for a bottom plate of a refrigerator provided by an embodiment.
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 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 invention.
Referring to fig. 1, a new material for preparing a bottom plate of a refrigerator is formed by sequentially compounding a carbon fiber felt layer 10, a PE film layer 20 and an aluminum foil layer 30.
The process for preparing the refrigerator bottom plate by adopting the materials comprises the following steps:
s1, selecting a material formed by sequentially compounding a carbon fiber felt layer, a PE film layer and an aluminum foil layer as a preparation raw material of a refrigerator bottom plate; unfolding the refrigerator bottom plate to a flat plate state, wherein 70% of the material thickness is deducted during the unfolding calculation at the folding angle;
s2, according to the length and width value of the refrigerator bottom plate which is unfolded into a flat plate state, cutting a square blank with a corresponding size at the position of the whole material, wherein the length and width value of the blank is 15-25 mm larger than the length and width value of the unfolded refrigerator bottom plate on one side so as to be convenient for fixing the blank in a stamping die;
and S3, putting the cut blank into a special die for punch forming.
And S4, bending and forming the blank with the punched appearance in a bending machine.
If the refrigerator bottom plate is in a three-dimensional shape, the refrigerator bottom plate bent and formed in the step S3 is placed on a special shape maintaining jig for fixed forming, and the maintaining time is 5h-8 h.
In step S3, the blank is placed in a stamping die with the carbon fiber felt layer facing upwards, so that one stamping die can complete the forming of the external dimension and the bending line of the refrigerator bottom plate at one time. The bending lines are positioned in the carbon fiber felt layer, and the depth of the bending lines is one half of the thickness of the carbon fiber felt layer. Because the bending knife contacts the softer felt layer first, in order to ensure the punching quality of the shape edge, the blank is compacted by pressing down the blank with a pressure plate before the punching knife contacts the blank.
The carbon fiber felt is made of polyacrylonitrile pre-oxidized fiber, and scraps such as scraps generated in punching can be left in the die and the bending machine, and before the blank is placed in the stamping die and the bending machine, the stamping die and the bending machine are blown by high-pressure air flow, so that irreparable indentation formed by the scraps on the surface of the aluminum foil layer can be avoided.
Also can the one deck protection aluminium foil layer outward appearance of laminating from type paper on the aluminium foil layer surface, place the shape at the refrigerator bottom plate and keep on the tool before fixed shaping will it can to tear from type paper.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A preparation process of a refrigerator bottom plate is characterized by comprising the following steps: the method comprises the following steps:
s1, selecting a material formed by sequentially compounding a carbon fiber felt layer, a PE film layer and an aluminum foil layer as a preparation raw material of a refrigerator bottom plate; unfolding the bottom plate of the refrigerator to a flat plate state, wherein 60% -70% of the thickness of the material is deducted during the unfolding calculation at the folding angle;
s2, according to the length and width value of the refrigerator bottom plate which is unfolded into a flat plate state, cutting a square blank with a corresponding size at the position of the whole material, wherein the length and width value of the blank is 15-25 mm larger than that of the unfolded refrigerator bottom plate on one side;
s3, putting the cut blank into a special die to be punched and molded;
and S4, bending and forming the blank with the punched appearance in a bending machine.
2. The process of claim 1, wherein the step of preparing the refrigerator base plate comprises the following steps: and (5) placing the refrigerator bottom plate formed in the step (S4) on a special shape maintaining jig for fixing and forming, wherein the maintaining time is 5-8 h.
3. The process of claim 1, wherein the step of preparing the refrigerator base plate comprises the following steps: and S3, stamping the outline dimension and the bending line of the refrigerator bottom plate, wherein the bending line is positioned in the carbon fiber felt layer and the depth of the bending line is one half of the thickness of the carbon fiber felt layer.
4. The process of claim 3, wherein the step of preparing the refrigerator base plate comprises the following steps: in step S3, the blank is placed in a punching die with the carbon fiber felt layer facing upward, and the blank is compacted by pressing down the blank with a pressure plate before the punching blade contacts the blank.
5. The process of claim 4, wherein the step of preparing the refrigerator base plate comprises the following steps: the stamping die and the bending machine are blown with high pressure air streams before the blank is placed into the stamping die and the bending machine.
6. The process for preparing a refrigerator bottom plate according to claim 2, wherein: the surface of the aluminum foil layer is attached with a layer of release paper, and the release paper is torn off before the refrigerator bottom plate is placed on the shape keeping jig for fixing and forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911035813.3A CN112743964B (en) | 2019-10-29 | 2019-10-29 | Preparation process of refrigerator bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911035813.3A CN112743964B (en) | 2019-10-29 | 2019-10-29 | Preparation process of refrigerator bottom plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112743964A true CN112743964A (en) | 2021-05-04 |
| CN112743964B CN112743964B (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911035813.3A Active CN112743964B (en) | 2019-10-29 | 2019-10-29 | Preparation process of refrigerator bottom plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112743964B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2239348Y (en) * | 1995-06-27 | 1996-11-06 | 张先锋 | Aluminium foil compounded plate |
| CN106862379A (en) * | 2017-01-18 | 2017-06-20 | 滁州市新康达金属制品有限公司 | A kind of refrigerator bottom plate stamping part processing and treating method |
| CN208035546U (en) * | 2018-01-22 | 2018-11-02 | 淮安清华科技节能材料有限公司 | A kind of sound-insulating material with aluminium foil layer |
-
2019
- 2019-10-29 CN CN201911035813.3A patent/CN112743964B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2239348Y (en) * | 1995-06-27 | 1996-11-06 | 张先锋 | Aluminium foil compounded plate |
| CN106862379A (en) * | 2017-01-18 | 2017-06-20 | 滁州市新康达金属制品有限公司 | A kind of refrigerator bottom plate stamping part processing and treating method |
| CN208035546U (en) * | 2018-01-22 | 2018-11-02 | 淮安清华科技节能材料有限公司 | A kind of sound-insulating material with aluminium foil layer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112743964B (en) | 2022-10-18 |
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