KR20170082407A - automobiles weather strip structure and manufacturing method - Google Patents
automobiles weather strip structure and manufacturing method Download PDFInfo
- Publication number
- KR20170082407A KR20170082407A KR1020160001764A KR20160001764A KR20170082407A KR 20170082407 A KR20170082407 A KR 20170082407A KR 1020160001764 A KR1020160001764 A KR 1020160001764A KR 20160001764 A KR20160001764 A KR 20160001764A KR 20170082407 A KR20170082407 A KR 20170082407A
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- KR
- South Korea
- Prior art keywords
- weather strip
- slip agent
- curing
- primer
- manufacturing
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0053—Producing sealings
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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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
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- B29C47/0009—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J10/00—Sealing arrangements
- B60J10/80—Sealing arrangements specially adapted for opening panels, e.g. doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/06—Sealing strips
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
Abstract
According to the structure and the manufacturing method of the weather strip for automotive vehicle of the present invention, the cross-sectional shape is formed in a U-shape and has a seal part having a sealing function, a joining member integrally formed with the seal part and engaged with the flange part of the vehicle, (A) a weather strip manufacturing step of producing a weather strip by extrusion-molding the core and the thermoplastic elastomer; (b) a pretreatment step of pretreating the surface of the prepared weather strip; (c) a slip agent applying step of applying a slip agent mixed with silicon and polyurethane to the surface of the pretreated prepreg; And (d) a curing step of curing the coating layer coated with the slipping agent in the slipping agent application step.
The effects of the present invention as described above can provide a manufacturing method of a weather strip structure for automobiles that can improve emotional quality, reinforceability, and wear resistance.
Description
The present invention relates to a structure and a manufacturing method of a weather strip for automobiles, and more particularly to a weather strip for a vehicle, which is made of an olefin rubber or a thermoplastic elastomer and is formed so that a slip layer having low friction resistance is formed on the surface of the weather strip. To a structure and a manufacturing method of the strip.
Generally, weather strips for automobiles are used to seal doors and bodies, door channels or trunk lids to prevent outside air, sound, dust, rain, The rubber packing on the edge absorbs the shock when the door is closed or suppresses vibration of the door trunk lid during traveling.
These weather strips include body weather strips, door weather strips, glass run, trunk lid and back door weather strips. These are installed between the body side and the door frame to absorb the impact when the door is closed, Thereby preventing foreign matter from entering.
Conventional weather strips are manufactured by coextrusion with the extrusion of a plastic slip agent on the surface of the seal portion. However, the durability of the slip agent is excellent, but due to the hardness, the compressive load is increased, and accordingly, it is difficult to commercialize the slip agent due to various problems such as surface fracture.
On the other hand, in the case of Japanese Laid-Open Patent Publication No. 2004-149102, the surface layer is extremely hard to be subjected to permanent deformation, and it is difficult to control by the multiple extrusion. Further, there is a serious problem of contamination of dust and the like due to surface static electricity, and there are many problems due to handling problems, resulting in commercialization.
In addition, European Patent Publication No. 01197519 relates to a polyolefin resin composition which makes it possible to produce a product with improved strength, impact resistance and heat resistance, a process for the production of a polyolefin resin compound and a polyolefin product. However, the European patent also has the disadvantages of the above-mentioned prior art.
It is an object of the present invention, which is devised to solve the problems as described above, to provide a weather strip for automobile which can improve the sensibility, the reinforcing property and the wear resistance by applying a liquid slip agent to the surface of the seal portion or the engagement member of the weather strip. And a method for manufacturing the same.
In order to accomplish the above object, according to the present invention, there is provided a method of manufacturing a weather strip structure for automotive vehicles, the method including the steps of: forming a U-shaped cross-section seal part having a seal function; A method for manufacturing a structure of a weather strip for a vehicle, the method comprising the steps of: (a) preparing a weather strip by extrusion molding the core and a thermoplastic elastomer; Manufacturing steps; (b) a pretreatment step of pretreating the surface of the prepared weather strip; (c) a slip agent applying step of applying a slip agent mixed with silicon and polyurethane to the surface of the pretreated prepreg; And (d) a curing step of curing the coating layer coated with the slipping agent in the slipping agent application step.
The pretreatment step is pre-treated by any one of a method of applying primer and a method of electrically irradiating plasma.
In addition, the slip agent applying step slips the slip agent mixed with the silicone and polyurethane onto the surface of the weather strip at a surface temperature of the weather strip of 25 ° C to 150 ° C.
The slip agent is composed of any one or a combination of two or more of 20% to 90% of silicon and 10% to 80% of polyurethane.
In the curing step, the weather strip is cured by any one or combination of infrared (IR), near infrared (NIR), and heat at a temperature of 50 ° C to 160 ° C and cured at a predetermined temperature and time.
And (e) a first cooling step of cooling the weather strip after (a) or after (b); And (f) after the step (d), cooling the weather strip.
The core of the weather strip may be made of any one of a thermoplastic material such as polypropylene or polyamide or steel and the thermoplastic material may be a talc or a glass fiber ) Is added.
The thermoplastic elastomer is composed of one or more of styrene type, olefin type, urethane type, amide type, polyester type, vinyl chloride type and modified type thereof.
INDUSTRIAL APPLICABILITY The effects of the present invention as described above can provide a structure and a manufacturing method of a weather strip for an automobile which can improve sensibility quality, permanent deformation performance, reinforcement performance, and wear resistance.
1 is a cross-sectional view illustrating a weather strip for a vehicle according to a preferred embodiment of the present invention.
2 is a flowchart showing a manufacturing method of a weather strip structure for a vehicle according to a preferred embodiment of the present invention.
3 and 4 are tables and graphs showing LLS (Long Term Load Set GMW15564) test results of a weather strip fabricated by a method for manufacturing a weather strip structure for an automobile according to a preferred embodiment of the present invention.
5 is an illustration of a weather strip fabricated and applied by a structure and a manufacturing method of a weather strip for a vehicle according to a preferred embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
Hereinafter, the present invention will be described with reference to the drawings for explaining a method of manufacturing a weather strip structure for an automobile according to embodiments of the present invention.
FIG. 1 is a cross-sectional view showing a weather strip for a vehicle according to a preferred embodiment of the present invention, and FIG. 2 is a flowchart showing a method for manufacturing a weather strip structure for a vehicle according to a preferred embodiment of the present invention.
1 and 2, a method of manufacturing a weather strip according to an embodiment of the present invention includes a seal portion having a U-shaped cross section and having a sealing function, a coupling member integrally formed with the seal portion and coupled to a flange portion of the vehicle, And a core inserted into the interior of the coupling member.
The method for manufacturing a weather strip structure for an automobile according to the present invention includes a weather strip manufacturing step (S10), a preprocessing step (S20), a slip draft forming step (S30) and a curing step (S40).
In the weather strip manufacturing step S10, the
At this time, it is preferable that the core material of the weather strip is made of any one of thermoplastic material or steel to which talc or glass fiber is added to polypropylene or polyamide.
The pretreatment step S20 is a pretreatment such as a chemical, electrical, or physical treatment method on the surface of the
At this time, when the surface temperature of the produced
In this case, the primer further includes at least one of fluorine, polypropylene, polyethylene, carbon, amide wax, adhesion promoter and oil.
In the slip forming step S30, a mixed slip agent containing silicon and polyurethane is applied to the surface of the primer applied in the preprocessing step S20.
At this time, the slip step S30 is a step of applying a slip agent in which silicon and polyurethane are mixed to the surface of the
At this time, the slip agent is composed mainly of a mixture of 20% to 90% of silicon and 10% to 80% of polyurethane.
More preferably, it is preferable to coat the surface of the
That is, by applying it to the surface of the
In addition, dust and the like are not contaminated by static electricity.
The curing step (S40) cures the coating layer composed of the primer and the slipping agent.
At this time, the curing step S40 is a step of curing the
Particularly, by curing by indirect heat such as infrared ray (IR), near infrared ray (NIR), or heat, thermal deformation of the
Further, a manufacturing method of a weather strip structure for an automobile according to the present invention further includes a first cooling step and a second cooling step.
The first cooling step cools the
The second cooling step cools the
The
The thermoplastic elastomer may be a thermoplastic styrenic block copolymer (SBC), a thermoplastic olefinic elastomer (TPO), a thermoplastic polyurethane (TPU), a thermoplastic polyamide (TPAE), a thermoplastic polyester elastomer TPEE, thermoplastic PVC (TPVC), and modified products thereof, or a combination of two or more thereof.
At this time, the tensile strength of the material used for the seal portion of the weather strip is preferably 1.0 to 5.0 MPa.
Hereinafter, a report on the LLS (Long Term Load Set GMW15564) test of a weather strip for a vehicle manufactured by the manufacturing method according to the present invention will be described.
3 and 4 are tables and graphs showing LLS (Long Term Load Set GMW15564) test results of a weather strip fabricated by a method for manufacturing a weather strip structure for an automobile according to a preferred embodiment of the present invention.
Referring to the LLS (Long Term Load Set GMW15564) test report of an automotive weather strip manufactured by the manufacturing method according to the present invention, as shown in FIGS. 3 and 4, the standard of the
3 and 4, a method for manufacturing a weather strip structure for an automotive vehicle according to the present invention includes applying a slip agent in which silicon and polyurethane are mixed on a surface of a thermoplastic elastomer, It can be seen that the rate of change of compressive load is 38.2% at temperature of. In the case of the weather strip of the present invention, the rate of change of the compressive load exceeds 43%.
Therefore, the structure and the manufacturing method of the automotive weather strip according to the present invention can be applied to the surface of the thermoplastic elastomer by applying a slip agent composed of a thermoplastic elastomer and mixed with silicon and polyurethane, .
Therefore, the weather strip of the present invention includes a seal portion having a U-shaped cross section and having a sealing function, a joint member formed integrally with the seal portion and engaged with a flange portion of the vehicle, and a core inserted into the joint member Wherein the weather strip is formed by extruding the core and the thermoplastic elastomer, applying a primer to the surface of the extruded weather strip, and applying silicone and polyurethane onto the surface of the applied primer. And the coating layer composed of the primer and the slip agent is cured. When the surface temperature of the extruded weather strip is in the range of 25 ° C to 150 ° C at the time of applying the primer, the primer is applied, And a slip agent in which the silicon and the polyurethane are mixed is sandwiched by the table of the weather strip Characterized in that the slurry is sprayed with a spray at a surface temperature of 25 ° C to 150 ° C and applied to the surface of the weather strip, characterized in that the slip agent is 50% to 90% of silicon and 10% to 50% of polyurethane do.
The weather strip according to the present invention is characterized in that the weather strip has a tensile strength of 2.0 to 3.0 MPa.
Further, the present invention is characterized in that the curing process of the coating layer is cured by any one or combination of infrared (IR), near infrared (NIR), and heat at a temperature of 50 ° C to 160 ° C and curing within 5 minutes .
The present invention further provides an automotive weather strip, which further comprises a first cooling step of applying the primer to the weather strip followed by cooling, and a second cooling step of curing the coating layer composed of the slipping agent followed by cooling .
Further, the present invention is characterized in that the elastic modulus of the weather strip on which the slip agent is coated is 2000 to 5000 MPa.
5 is an illustration of a weather strip according to a preferred embodiment of the present invention.
5, the weather strip manufactured by the method of manufacturing a weather strip structure for an automobile according to the present invention is applied to various places such as a door side part, a sunroof part, a trunk & tail gate, And it is possible to improve the compression set, the reinforcing property and the abrasion resistance more than the conventional ones.
It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.
10: Weather Strip
11: Seal
12: Core
13:
Claims (13)
(a) a weather strip manufacturing step of producing a weather strip by extrusion-molding the core and the thermoplastic elastomer;
(b) a pretreatment step of pretreating the surface of the prepared weather strip;
(c) a slip agent applying step of applying a slip agent mixed with silicon and polyurethane to the surface of the pretreated prepreg; And
(d) a curing step of curing the coating layer coated with the slipping agent in the slipping agent application step.
Wherein the pretreatment is carried out by any one of a method of applying a primer and a method of electrically conducting plasma irradiation.
Wherein a slip agent in which the silicone and polyurethane are mixed is applied to the surface of the weather strip at a surface temperature of the weather strip of 25 占 폚 to 150 占 폚.
, 20% to 90% of silicon, and 10% to 80% of polyurethane.
Wherein the weather strip is cured at a temperature of 50 ° C to 160 ° C by any one of infrared light (IR), near infrared light (NIR), and heat, and is cured at a predetermined temperature and time. ≪ / RTI >
(e) a first cooling step of cooling the weather strip after (a) or after (b); And
(f) a second cooling step of cooling the weather strip after the step (d).
A polypropylene or a polyamide is made of a thermoplastic material or steel,
Wherein the thermoplastic material is a mixture of talc or glass fiber.
The method for manufacturing a weather strip structure for automobile according to claim 1, wherein the weather strip structure is formed of one or more of styrene type, olefin type, urethane type, amide type, polyester type, vinyl chloride type and modified type thereof.
The weather strip is formed by extruding the core and the thermoplastic elastomer,
The surface of the extruded weather strip is coated with a primer,
Applying a slip agent containing silicon and polyurethane on the surface of the applied primer, curing the coating layer composed of the primer and the slip agent,
When the primer is applied, when the surface temperature of the extruded weather strip is 25 ° C to 150 ° C, the primer is applied and cured within 1 minute,
A slip agent comprising a mixture of silicon and polyurethane is sprayed on the surface of the weather strip at a surface temperature of the weather strip of 25 ° C to 150 ° C to apply the slip agent to the surface of the weather strip, Urethane is 10% to 50% by weight.
And a tensile strength of 2.0 to 3.0 MPa.
Characterized in that the weather strip is cured by any one or combination of infrared (IR), near infrared (NIR) and warm heat at a temperature of 50 to 160 DEG C and curing is carried out for 5 minutes or less.
A first cooling step of applying the primer to the weather strip and then cooling the weather strip; and a second cooling step of cooling after curing the coating layer composed of the slipping agent.
Wherein the elastic modulus of the weather strip coated with the slip agent is 2000 to 5000 MPa.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160001764A KR20170082407A (en) | 2016-01-06 | 2016-01-06 | automobiles weather strip structure and manufacturing method |
| EP16786620.1A EP3290194B1 (en) | 2015-04-28 | 2016-02-11 | Vehicle weather strip structure and manufacturing method |
| US15/535,057 US20170348936A1 (en) | 2015-04-28 | 2016-02-11 | Automobiles weather strip structure and manufacturing method |
| PCT/KR2016/001400 WO2016175433A1 (en) | 2015-04-28 | 2016-02-11 | Vehicle weather strip structure and manufacturing method |
| CN201680012211.4A CN107278216A (en) | 2015-04-28 | 2016-02-11 | The structure and manufacture method of automobile weather strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160001764A KR20170082407A (en) | 2016-01-06 | 2016-01-06 | automobiles weather strip structure and manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20170082407A true KR20170082407A (en) | 2017-07-14 |
Family
ID=59358784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020160001764A KR20170082407A (en) | 2015-04-28 | 2016-01-06 | automobiles weather strip structure and manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20170082407A (en) |
-
2016
- 2016-01-06 KR KR1020160001764A patent/KR20170082407A/en unknown
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