CN112356382A - Preparation method of hardware and plastic integrated piece - Google Patents
Preparation method of hardware and plastic integrated piece Download PDFInfo
- Publication number
- CN112356382A CN112356382A CN202011129382.XA CN202011129382A CN112356382A CN 112356382 A CN112356382 A CN 112356382A CN 202011129382 A CN202011129382 A CN 202011129382A CN 112356382 A CN112356382 A CN 112356382A
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- China
- Prior art keywords
- hardware
- plastic
- glue
- integrated piece
- sealing ring
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- 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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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The application provides a method for preparing a hardware and plastic integrated piece, which can increase the contact area between the hardware and the plastic and increase the obstruction of the flow of gas or other fluid substances by stamping a bent part on the surface of the hardware; glue is smeared on the surface of the hardware, a layer of glue film can be formed between the hardware and the plastic, the glue film can be used for bonding the hardware and the plastic, and the sealing effect can be achieved. The sealing ring in the traditional technology is directly cancelled, the cost is reduced, the sealing ring using soft glue is saved, and screws do not need to be locked in the structure; the space is saved, and when the product requirement is compact or the structure of the product cannot use the sealing ring, the position of the sealing ring does not need to be considered; the service life is long, and basically, the sealed place cannot be damaged as long as the product is not damaged; the sealing effect between the plastic and the hardware can reach IP67 level.
Description
Technical Field
The invention relates to the technical field of plastics, in particular to a preparation method of a hardware and plastic integrated piece.
Background
The molecular structures of plastic and hardware are different, the purpose of fusion welding cannot be achieved between the plastic and the hardware, in industrial production, structures formed by the plastic and the hardware are often used for various products, when the products need to be used outdoors or operated in water or other products need to be sealed, some products need to reach the standard of IP67 or above, generally most people adopt silica gel or other soft rubber as sealing rings, so that the purpose can be achieved, but the sealing rings cannot be made on some structures or the effect cannot be achieved by using the sealing rings;
the prior art has the following disadvantages:
1. the method of using the sealing ring occupies space, and sealing can not be realized under the condition of insufficient product space;
2. the sealing ring has a service life, and when the sealing ring is aged, a product needs to be disassembled to replace the sealing ring again;
3. some processing environment can't use the sealing washer, and the high temperature when the plastic secondary is moulded plastics, and the sealing washer is melted, can't play sealed effect.
Disclosure of Invention
In order to solve the problems, the invention provides a method for preparing a hardware and plastic integrated piece, which is characterized in that glue is coated on the surface of a bent part of a hardware, a layer of glue film can be formed between the hardware and the plastic, and the glue film can be used for bonding the hardware and the plastic, so that the sealing effect can be achieved.
In order to achieve the purpose, the invention adopts the technical scheme that: a preparation method of a hardware plastic integrated piece comprises the following steps:
step 3, uniformly coating glue on the contact position of the hardware and the plastic;
and 4, after the glue is fully cured, putting the hardware coated with the glue into a plastic mold for injection molding, taking the mold and forming a finished product.
Further, the specific steps of step 2 are: and (3) soaking the hardware treated in the step (1) in a solvent-based oil removal agent or an alkaline cleaning agent.
Further, the specific steps of step 2 are: and (3) electroplating or passivating the hardware treated in the step (1).
Further, in step 3, the glue component comprises butanone, epoxy resin, acetic acid mixture and xylene.
Further, the specific steps of step 3 are: and uniformly coating glue on the contact position of the hardware and the plastic, and naturally drying for 30-60 minutes after the glue is coated.
Further, the specific steps of step 3 are: uniformly coating glue on the contact position of the hardware and the plastic, and drying by a dryer at the drying temperature of 80-120 ℃.
Further, the glue consumption in step 3 is generally 10 square meters per kilogram.
The invention has the beneficial effects that: 1. in the application, one or more than one bent part is punched on the surface of the hardware, so that the contact area of the hardware and the plastic can be increased in the subsequent injection molding process, and the obstruction of the flow of gas or other fluid substances is increased; 2. glue is smeared on the surface of the hardware, a layer of glue film can be formed between the hardware and the plastic, the glue film can be used for bonding the hardware and the plastic, and the sealing effect can be achieved even under the condition that the contact area of the hardware is not increased. 3. The sealing ring in the traditional technology is directly cancelled, the cost is reduced, the sealing ring using soft glue is saved, and screws do not need to be locked in the structure; 4. the space is saved, and when the product requirement is compact or the structure of the product cannot use the sealing ring, the position of the sealing ring does not need to be considered; 5. the service life is long, and basically, the sealed place cannot be damaged as long as the product is not damaged; 6. the sealing effect between the plastic and the hardware can reach IP67 level.
Drawings
FIG. 1 is a flow chart of a method for making a gold plastic monolith according to the present application.
Fig. 2 is a structural schematic diagram of a bending part formed by hardware.
Fig. 3 is a schematic structural diagram of hardware after glue is coated on the hardware.
FIG. 4 is a cross-sectional view of the finished gold plastic monolith of the present application.
The reference numbers illustrate: 1. hardware; 11. a bending part; 12. glue; 2. and (3) plastic cement.
Detailed Description
The first embodiment is as follows:
referring to fig. 1, the present invention relates to a method for manufacturing a hardware plastic integrated piece, which includes the following steps:
step 3, uniformly coating glue 12 on the contact position of the hardware 1 and the plastic 2;
and 4, after the glue 12 is fully cured, putting the hardware 1 coated with the glue 12 into a plastic 2 mould for injection molding, taking the mould and forming a finished product.
Further, the specific steps of step 2 are: the hardware 1 treated in the step 1 is soaked in a solvent-based oil removal agent or an alkaline cleaning agent, so that cutting oil, protective oil, grease and the like on the surface are removed, the subsequent glue coating 12 process is facilitated, and the glue 12 is better adhered to the hardware.
Further, in step 3, the glue 12 comprises butanone, epoxy resin, acetic acid mixture, and xylene.
Further, the specific steps of step 3 are: uniformly coating glue 12 at the contact position of the hardware 1 and the plastic 2, and naturally drying for 30-60 minutes after coating the glue 12. The amount of glue 12 used in step 3 is typically 10 square meters per kilogram.
The second concrete implementation:
referring to fig. 1, the present invention relates to a method for manufacturing a hardware plastic integrated piece, which includes the following steps:
and 2, carrying out surface treatment on the hardware 1 treated in the step 1, wherein the surface treatment is electroplating or passivation treatment on the hardware 1.
Step 3, uniformly coating glue 12 on the contact position of the hardware 1 and the plastic 2;
and 4, after the glue 12 is fully cured, putting the hardware 1 coated with the glue 12 into a plastic 2 mould for injection molding, taking the mould and forming a finished product.
Further, the specific steps of step 3 are: uniformly coating glue 12 at the contact position of the hardware 1 and the plastic 2, and drying by a dryer at the drying temperature of 80-120 ℃. In this embodiment, the speed of curing can be increased by drying with a dryer.
Further, the amount of glue 12 used in step 3 is generally 10 square meters per kilogram.
In summary, in the present application, one or more than one bent portion 11 is stamped on the surface of the hardware 1, so that in the subsequent injection molding process, the contact area between the hardware 1 and the plastic 2 can be increased, and the obstruction of the flow of gas or other fluid substances can be increased; glue 12 is smeared on the surface of the hardware 1, a layer of glue film can be formed between the hardware and the plastic 2, the glue film can be used for bonding the hardware 1 and the plastic 2, and the sealing effect can be achieved even under the condition that the contact area of the hardware 1 is not increased. The sealing ring in the traditional technology is directly cancelled, the cost is reduced, the sealing ring using soft glue is saved, and screws do not need to be locked in the structure; the space is saved, and when the product requirement is compact or the structure of the product cannot use the sealing ring, the position of the sealing ring does not need to be considered; the service life is long, and basically, the sealed place cannot be damaged as long as the product is not damaged; the sealing effect between the plastic 2 and the hardware can reach IP67 level.
The above embodiments are merely illustrative of the preferred embodiments of the present invention, and not restrictive, and various changes and modifications to the technical solutions of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are intended to fall within the scope of the present invention defined by the appended claims.
Claims (7)
1. The preparation method of the hardware and plastic integrated piece is characterized by comprising the following steps:
step 1, stamping a hardware raw material to form a hardware, and forming one or more than one bent part on the hardware;
step 2, carrying out surface treatment on the hardware treated in the step 1;
step 3, uniformly coating glue on the contact position of the hardware and the plastic;
and 4, after the glue is fully cured, putting the hardware coated with the glue into a plastic mold for injection molding, taking the mold and forming a finished product.
2. The method for preparing the hardware and plastic integrated piece according to claim 1, wherein the specific steps in the step 2 are as follows: and (3) soaking the hardware treated in the step (1) in a solvent-based oil removal agent or an alkaline cleaning agent.
3. The method for preparing the hardware and plastic integrated piece according to claim 1, wherein the specific steps in the step 2 are as follows: and (3) electroplating or passivating the hardware treated in the step (1).
4. The method as claimed in claim 1, wherein in step 3, the glue component comprises butanone, epoxy resin, acetic acid mixture, xylene.
5. The method for preparing the hardware and plastic integrated piece according to claim 1 or 4, wherein the specific steps in the step 3 are as follows: and uniformly coating glue on the contact position of the hardware and the plastic, and naturally drying for 30-60 minutes after the glue is coated.
6. The method for preparing the hardware and plastic integrated piece according to claim 1 or 4, wherein the specific steps in the step 3 are as follows: uniformly coating glue on the contact position of the hardware and the plastic, and drying by a dryer at the drying temperature of 80-120 ℃.
7. The method of claim 1, wherein the amount of glue used in step 3 is generally 10 square meters per kilogram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011129382.XA CN112356382A (en) | 2020-10-21 | 2020-10-21 | Preparation method of hardware and plastic integrated piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011129382.XA CN112356382A (en) | 2020-10-21 | 2020-10-21 | Preparation method of hardware and plastic integrated piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112356382A true CN112356382A (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011129382.XA Pending CN112356382A (en) | 2020-10-21 | 2020-10-21 | Preparation method of hardware and plastic integrated piece |
Country Status (1)
| Country | Link |
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| CN (1) | CN112356382A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113681817A (en) * | 2021-08-18 | 2021-11-23 | 惠州市重信实业有限公司 | Hardware ring embedding process and embedding structure thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009052086A1 (en) * | 2009-11-05 | 2011-05-12 | Daimler Ag | Producing composite component of metal component and plastic material with cohesive adhesion between them, useful for vehicles, comprises partially pre-treating metal component surface, and spraying polyamide layer on pre-treated surface |
| CN109291364A (en) * | 2018-10-16 | 2019-02-01 | 苏州昀冢电子科技有限公司 | Hardware plastic cement integral piece and preparation method thereof |
-
2020
- 2020-10-21 CN CN202011129382.XA patent/CN112356382A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009052086A1 (en) * | 2009-11-05 | 2011-05-12 | Daimler Ag | Producing composite component of metal component and plastic material with cohesive adhesion between them, useful for vehicles, comprises partially pre-treating metal component surface, and spraying polyamide layer on pre-treated surface |
| CN109291364A (en) * | 2018-10-16 | 2019-02-01 | 苏州昀冢电子科技有限公司 | Hardware plastic cement integral piece and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113681817A (en) * | 2021-08-18 | 2021-11-23 | 惠州市重信实业有限公司 | Hardware ring embedding process and embedding structure thereof |
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Application publication date: 20210212 |