CN103373204A - Outside sealing strip of automobile window and manufacturing method thereof - Google Patents
Outside sealing strip of automobile window and manufacturing method thereof Download PDFInfo
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- CN103373204A CN103373204A CN2012101233550A CN201210123355A CN103373204A CN 103373204 A CN103373204 A CN 103373204A CN 2012101233550 A CN2012101233550 A CN 2012101233550A CN 201210123355 A CN201210123355 A CN 201210123355A CN 103373204 A CN103373204 A CN 103373204A
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Abstract
The invention provides an outside sealing strip of an automobile window. The outside sealing strip comprises a framework and a base body, wherein the framework is made of alloy plastics of chlorinated polyvinyl chloride and acrylonitrile-butadiene-styrene, the framework is in a long-strip shape, and a fracture surface of the framework is shaped like a reversed U-shaped structure. The reversed U-shaped structure comprises a top portion, a first lateral portion close to window glass and a second lateral portion away from the window glass. The base body is made of polyvinyl chloride and wraps on the periphery of the framework, a first protrusion is arranged on the base body on the outer side of the first lateral portion, and lint is arranged on the side of the first protrusion contacted with the window glass. Burrs are arranged on the contact portion of the base body on the inner side of the first lateral portion and an automobile door panel. The invention further provides a manufacturing method of the outside sealing strip of the automobile window. The outside sealing strip of the automobile window is good in binding force, and the manufacturing method of the outside sealing strip is simple, omits steps of adjusting formed steel belts in the prior art and reduces procedures.
Description
Technical field
The invention belongs to the weather strip for automobile field, relate to a kind of sealing strip on outer side of car window and preparation method thereof.
Background technology
Along with improving constantly of the national economic development, business prosperity and living standards of the people, automobile quantity increases day by day.The lightweight of automobile is more and more paid attention to by each large automotive giant.The sealing property of motor-vehicle glass window is one of important document that affects car mass.Sealing band can guarantee the sealing between the structural member of wind glass and vehicle, so that can prevent from entering vehicle interior such as the environmental concerns of rainwater, dust and/or wind.Particularly the sealing band for glass of movable window has some special requirements, and whether whether these windows can be fully linearly (horizontal or vertical) mobile, collapsible or can non-linearly move (for example rotatable).These requirements comprise high resiliency and sealing member life-span, sealing band presentation quality and about the obvious stability of environmental concerns.The motor-vehicle glass window sealing band that uses at present, all with metal as skeleton because metal hardness is high, can meet the demands, but metal is heavier, can increase like this weight of automobile, and the preparation process more complicated of metallic framework.
In order to address the above problem, applicant of the present invention discloses a kind of sealing strip on outer side of car window in application number is the patent of CN201110327255.5, described sealing band comprises skeleton and matrix, described skeleton is chlorinated polyviny chloride, its outward appearance is strip, and its section is and is similar to inverted " U " type structure; Described inverted " U " type structure is divided into the top and near the first sidepiece of glass for vehicle window and away from the second sidepiece of glass for vehicle window; Described matrix is polyvinylchloride, and described matrix is coated on around the described skeleton, and is provided with the first projection at the outside of the first sidepiece matrix, and the side that described the first projection contacts with glass for vehicle window is provided with flannelette; Inboard matrix and the door panel contact position of described the first sidepiece are provided with burr.This patent has solved the problem of vehicle weight and preparation process complexity, but its impact resistance is poor.
Summary of the invention
The present invention provides good window sealing strip of a kind of impact resistance and preparation method thereof for solving the poor technical matters of impact resistance of existing window sealing strip.
The invention provides a kind of sealing strip on outer side of car window, described sealing band comprises skeleton and matrix, described skeleton is the alloy plastic of chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer, and its outward appearance is strip, and its section is and is similar to inverted " U " type structure; Described inverted " U " type structure is divided into the top and near the first sidepiece of glass for vehicle window and away from the second sidepiece of glass for vehicle window; Described matrix is polyvinylchloride, and described matrix is coated on around the described skeleton, and is provided with the first projection at the outside of the first sidepiece matrix, and the side that described the first projection contacts with glass for vehicle window is provided with flannelette; Inboard matrix and the door panel contact position of described the first sidepiece are provided with burr.
The present invention also provides a kind of preparation method of window sealing strip, the method is alloy plastic and the polyvinylchloride compound extrusion moulding with chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer formation, wherein said polyvinylchloride coats the alloy plastic of chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer formation fully, then flannelette is sticked on the side that the first projection contacts with glass for vehicle window, at high temperature that the glue thawing of flannelette bottom is bonding with the soft limit of PVC base system, solidify stickup after the typing of the drowning stock mould of process and the cooling in water fully.
The chlorinated polyviny chloride of sealing band of the present invention by high hardness and the compound extruded of the alloy plastic skeleton of acrylonitrile-butadiene-styrene copolymer and the plastic material of PVC matrix, guaranteed product satisfy assemble in, difficult drop-off, proof strength.Replace steel band as skeleton with the alloy plastic of chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer, not only lightweight as CPVC (weight of CPVC be steel 1/5), the lightweight that has greatly improved automobile.And the most acid of the same ability with CPVC, alkali, salt, good chemical resistance is arranged, heat-resisting aspect also obviously is better than other plastics, all obviously improves in serviceability temperature (than the high 35-40 of polyvinyl chloride resin), intensity, the performance such as heat-resisting, fire-retardant.Because the CPVC processing temperature is higher and scope is narrower, the tendency of the HCL that thermolysis is emitted increases, and is very high and strength under shock CPVC self is poor to the requirement of former and machine-shaping technology.And ABS mixes the generation concurrent mixture as a kind of anti-impact modifier with CPVC, can improve the strength under shock of CPVC, improves its breaking elongation, reduces its melt viscosity and Vicat softening point, improves its toughness.ABS resin can also effectively reduce the balancing torque of CPVC/ABS alloy, improves the flowing power of co-mixing system, makes the easier plasticizing of concurrent mixture, thereby has improved the processing characteristics of CPVC.Identical with PVC goods processing mode aspect processing, only needing to change some processing conditions at processing equipment can process, and prior advantage is to have reduced operation, has improved efficient.
Description of drawings
Fig. 1 is the sectional schematic diagram of window sealing strip of the present invention.
Fig. 2 is equipment scheme drawing used in the test method.
The specific embodiment
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The invention provides a kind of sealing strip on outer side of car window, described sealing band comprises skeleton and matrix, described skeleton is the alloy plastic of chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer, and its outward appearance is strip, and its section is and is similar to inverted " U " type structure; Described inverted " U " type structure is divided into the top and near the first sidepiece of glass for vehicle window and away from the second sidepiece of glass for vehicle window; Described matrix is polyvinylchloride, and described matrix is coated on around the described skeleton, and is provided with the first projection at the outside of the first sidepiece matrix, and the side that described the first projection contacts with glass for vehicle window is provided with flannelette; Inboard matrix and the door panel contact position of described the first sidepiece are provided with burr.
The component of chlorinated polyviny chloride and polyvinylchloride most of identical can well stick together, and is not easy to come off.ABS resin can also effectively reduce the balancing torque of CPVC/ABS alloy, improves the flowing power of co-mixing system, makes the easier plasticizing of concurrent mixture, thereby has improved the processing characteristics of CPVC.And chlorinated polyviny chloride and ABS can alleviate the weight of automobile than metal light.
According to sealing strip on outer side of car window provided by the present invention, preferably, the mol ratio of chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer is 2.7-3.35:1 in the alloy plastic of described chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer.Along with the increase of ABS consumption, the minimum plasticization temperature decrease of CPVC/ABS alloy, the minimum plasticization temperature of pure CPVC is 186 ℃, (be that CPVC and ABS proportion of composing are 3:1, the minimum plasticization temperature of alloy is reduced to 166 ℃ during ABS when adding 25 parts; The reduction amplitude reaches 20 ℃, adds the processing temperature that ABS can decrease CPVC, improves its processing characteristics.Because the resistance to heat of ABS resin itself is good, when its consumption during less than 25 parts, the vicat softening point temperature impact of alloy not quite; But after the ABS consumption was greater than 25 parts, the vicat softening point temperature of alloy sharply descended, and when being 40 parts to the ABS consumption, downswing just slows down, and illustrated after the ABS consumption is greater than 25 parts, increased the resistance to heat variation of alloy with the ABS consumption.
According to sealing strip on outer side of car window provided by the present invention, stronger and reduce the thickness of skeleton for the intensity that can make skeleton, preferably, the thickness of described skeleton is 0.5-0.8mm as far as possible.
According to sealing strip on outer side of car window provided by the present invention, but little to assemble later withdrawal force large at the resistance of assembling in order to make sealing band, and preferably, the thickness of described burr is 0.8-1.2 mm, and length is 3.5-4.5 mm; Described burr and skeleton are 130-150 ° in the angle of installation direction.
Described installation direction refers to sealing band is installed to the direction of glass outer side, i.e. the opening direction of inverted " U " type structure.
According to sealing strip on outer side of car window provided by the present invention, with glass better sealing and binding force are arranged in order to make the first projection, preferably, the thickness of described the first projection is 2.3-2.7 mm, length is 13.5-14.5 mm; Described the first projection is 115-125 ° with skeleton in the angle of installation direction.
According to sealing strip on outer side of car window provided by the present invention, preferably, on the matrix near one side of something of glass for vehicle window, also be provided with the second projection, described the second projection is positioned at the first protruding top; Described the second projection can make the outward appearance of sealing band more attractive in appearance.For the second projection can be tried one's best less and glass contact, more preferably, described the second projection thickness is 1.8-2.2 mm, and length is 12.5-13.5 mm; Described the second projection is 115-125 ° with skeleton in the angle of installation direction.
Preferably, the density 1.45-1.58g/cm of described chlorinated polyviny chloride
3
Preferably, described chlorinated polyviny chloride chlorinity be 63-69%.The chlorinity of CPVC is than high 5-10 the point of PVC.Heat-resisting, acidproof, alkaline-resisting, the salt tolerant of very large raising material, be the performance of oxidizer.
Below in conjunction with accompanying drawing sealing band of the present invention is described in detail.As shown in Figure 1, the sealing bar comprises skeleton 1 and matrix 2, described skeleton 1 is the alloy plastic that chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer form, its outward appearance is strip, its section is and is similar to inverted " U " type structure, and described inverted " U " type structure is divided into top 11 and near the first sidepiece 12 of glass for vehicle window and away from the second sidepiece 13 of glass for vehicle window; Matrix 2 is polyvinylchloride, and described matrix 2 is coated on around the described skeleton 1, and is provided with the first projection 21 at the outside matrix 2 of the first sidepiece 12, and described the first projection 21 sides that contact with glass for vehicle window are provided with flannelette 22; Inboard matrix 2 and the door panel contact position of described the first sidepiece 12 are provided with burr 23.On the matrix 2 of the first sidepiece 12, also be provided with the second projection 24, the second projections 24 and be positioned at the first protruding 21 tops.
The invention provides a kind of preparation method of window sealing strip, the method is alloy plastic and the polyvinylchloride compound extrusion moulding with chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer formation, wherein said polyvinylchloride coats the alloy plastic of chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer formation fully, then flannelette is sticked on the side that the first projection contacts with glass for vehicle window, at high temperature that the glue thawing of flannelette bottom is bonding with the soft limit of PVC base system, solidify stickup after the typing of the drowning stock mould of process and the cooling in water fully.
Preferably, the alloy plastic that described chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer form and the method for polyvinylchloride compound extrusion moulding are for adding respectively two extruders with chlorinated polyviny chloride and the alloy plastic of acrylonitrile-butadiene-styrene copolymer formation and the raw material of polyvinylchloride, and the heat stepwise temperature of chlorinated polyviny chloride is 150-170 ℃; The analgesic temperature of the segmentation of polyvinylchloride is 105-115 ℃.
Preferably, then the method for described stickup flannelette for being pasted together flannelette in extrusion molding through being positioned on the extrusion die with sample.
Preferably, the alloy plastic that forms of described polyvinylchloride and acrylonitrile-butadiene-styrene copolymer is to be mixing the obtaining of ratio of 2.7-3.35:1 according to mol ratio by polyvinylchloride and acrylonitrile-butadiene-styrene copolymer.
The invention provides the compound extruded window sealing strip technology of alloy plastic and the PVC of a kind of CPVC and ABS, saved the step of existing technique furnishing steel band of model, reduced operation.Improve the strength under shock of CPVC, improve its breaking elongation, reduce its melt viscosity and Vicat softening point, improve its toughness.ABS resin can also effectively reduce the balancing torque of CPVC/ABS alloy, improves the flowing power of co-mixing system, makes the easier plasticizing of concurrent mixture, thereby has improved the processing characteristics of CPVC.Save cost, improved production efficiency.
Below in conjunction with embodiment, the present invention is described in further detail.
The total amount of the alloy plastic of chlorinated polyviny chloride (CPVC) and acrylonitrile-butadiene-styrene copolymer (ABS) is 100 parts, and wherein the ABS consumption is 12.5 parts; The alloy plastic of chlorinated polyviny chloride (CPVC) and acrylonitrile-butadiene-styrene copolymer (ABS) and the raw material of polyvinylchloride are added respectively the two extruders extrusion molding, and the heat stepwise temperature of CPVC/ABS is about 185 ℃; The heat stepwise temperature of polyvinylchloride is 110 ℃.The complete clad alloy plastic skeleton of wherein said polyvinylchloride, then flannelette is sticked on the side that the first projection contacts with glass for vehicle window, at high temperature that the glue thawing of flannelette bottom is bonding with the soft limit of PVC matrix, solidify stickup after the typing of the drowning stock mould of process and the cooling in water fully and prepare sealing band A1.The raw material of chlorinated polyviny chloride and polyvinylchloride is added respectively the two extruders extrusion molding, and the heat stepwise temperature of chlorinated polyviny chloride is 160 ℃; The analgesic temperature of the segmentation of polyvinylchloride is 110 ℃.Wherein said polyvinylchloride coats chlorinated polyviny chloride fully, then flannelette is sticked on the side that the first projection contacts with glass for vehicle window, at high temperature that the glue thawing of flannelette bottom is bonding with the soft limit of PVC matrix, solidify stickup after the typing of the drowning stock mould of process and the cooling in water fully and prepare sealing band A1.The thickness of skeleton is 0.6mm; The thickness of burr is 1.0mm, and length is 4.0mm, and angle is 140 °.The thickness of the first projection is 2.5mm, and length is 14mm, and angle is 120 °.Be provided with the second projection at the matrix near one side of something of glass for vehicle window, described the second projection thickness is 2.0mm, and length is 13mm, and angle is 120 °.
Method according to embodiment 1 prepares sealing band A2.Difference is: the ABS consumption is 25 parts; Do not have the second projection, the thickness of skeleton is 0.5cm; The thickness of burr is 0.8mm, and length is 3.5mm, and angle is 130 °.The thickness of the first projection is 2.3mm, and length is 13.5mm, and angle is 115 °.
Embodiment 3
Method according to embodiment 1 prepares sealing band A3.Difference is: the ABS consumption is 37.5 parts; The thickness of skeleton is 0.8mm; The thickness of burr is 1.2mm, and length is 4.5mm, and angle is 150 °.The thickness of the first projection is 2.7mm, and length is 14.5mm, and angle is 125 °.Be provided with the second projection at the matrix near one side of something of glass for vehicle window, described the second projection thickness is 2.2mm, and length is 13.5mm, and angle is 125 °.
Embodiment 4
Method according to embodiment 1 prepares sealing band A4.Difference is: the ABS consumption is 50 parts.
Embodiment 5
Method according to embodiment 1 prepares sealing band A5.Difference is: the ABS consumption is 7.5 parts.
Comparative Examples 1
Method according to embodiment 1 prepares sealing band B1.Difference is: do not contain ABS.
Test method: impact strength
Test machine: universal tensile testing machine.
Test sample: sealing band A1-A5 and B1 are parked at least 3h.
Content measurement: the sealing band impact strength, make the sealing band matrix impact and fracture at hand, measure the merit that consumes when sample fractures, and record the collapse strength of anti-impact force effect.
The length of sample: 100mm.
Test method: will remove the lower end (distance among Fig. 2 between two fulcrums 4 is 70mm) that the first sealing band matrix 3 protruding and the second projection is placed on the tool such as Fig. 2 and is fixed on experimental engine with blade, in the upper end of experimental engine by the hammer 5 of termination fillet along the center-point of sealing band matrix to pressing down, data to recording demonstration after matrix fractures the results are shown in Table 1.
Table 1
| The sealing band kind | Average impact strength (J/m) |
| A1 | 490 |
| A2 | 627 |
| A3 | 515 |
| A4 | 435 |
| A5 | 340 |
| B1 | 98 |
As can be seen from Table 1, the peel strength of the former sealing band greater than Comparative Examples of the impact strength of sealing band of the present invention illustrate that the binding force of sealing band of the present invention is good, and the method is simple, save the step of existing technique furnishing steel band of model, reduced operation.
Claims (10)
1. sealing strip on outer side of car window, it is characterized in that described sealing band comprises skeleton and matrix, described skeleton is the alloy plastic of chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer, its outward appearance is strip, and its section is and is similar to inverted " U " type structure; Described inverted " U " type structure is divided into the top and near the first sidepiece of glass for vehicle window and away from the second sidepiece of glass for vehicle window; Described matrix is polyvinylchloride, and described matrix is coated on around the described skeleton, and is provided with the first projection at the outside of the first sidepiece matrix, and the side that described the first projection contacts with glass for vehicle window is provided with flannelette; Inboard matrix and the door panel contact position of described the first sidepiece are provided with burr.
2. sealing band according to claim 1 is characterized in that, the mol ratio of chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer is 2.7-3.35:1 in the alloy plastic of described chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer.
3. sealing band according to claim 1 is characterized in that, the thickness of described skeleton is 05-0.8mm.
4. sealing band according to claim 1 is characterized in that, the thickness of described burr is 0.8-1.2 mm, and length is 3.5-4.5 mm; Described burr and skeleton are 130-150 ° in the angle of installation direction.
5. sealing band according to claim 1 is characterized in that, the thickness of described the first projection is 2.3-2.7 mm, and length is 13.5-14.5 mm; Described the first projection is 115-125 ° with skeleton in the angle of installation direction.
6. sealing band according to claim 1 is characterized in that, also is provided with the second projection on the matrix near one side of something of glass for vehicle window, and described the second projection is positioned at the first protruding top; Described the second projection thickness is 1.8-2.2 mm, and length is 12.5-13.5 mm; Described the second projection is 115-125 ° with skeleton in the angle of installation direction.
7. the preparation method of a window sealing strip claimed in claim 1, it is characterized in that, the method is alloy plastic and the polyvinylchloride compound extrusion moulding with chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer formation, wherein said polyvinylchloride coats the alloy plastic of chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer formation fully, then flannelette is sticked on the side that the first projection contacts with glass for vehicle window, at high temperature that the glue thawing of flannelette bottom is bonding with the soft limit of PVC base system, solidify stickup after the typing of the drowning stock mould of process and the cooling in water fully.
8. method according to claim 7, it is characterized in that, the alloy plastic that described chlorinated polyviny chloride and acrylonitrile-butadiene-styrene copolymer form and the method for polyvinylchloride compound extrusion moulding are for adding respectively two extruders with chlorinated polyviny chloride and the alloy plastic of acrylonitrile-butadiene-styrene copolymer formation and the raw material of polyvinylchloride, and the heat stepwise temperature of chlorinated polyviny chloride is 150-170 ℃; The analgesic temperature of the segmentation of polyvinylchloride is 105-115 ℃.
9. method according to claim 7 is characterized in that, then the method for described stickup flannelette for being pasted together flannelette in extrusion molding through being positioned on the extrusion die with sample.
10. method according to claim 7, it is characterized in that the alloy plastic that described polyvinylchloride and acrylonitrile-butadiene-styrene copolymer form is to be mixing the obtaining of ratio of 2.7-3.35 according to mol ratio by polyvinylchloride and acrylonitrile-butadiene-styrene copolymer.
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| CN201210123355.0A CN103373204B (en) | 2012-04-25 | 2012-04-25 | A kind of sealing strip on outer side of car window and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210123355.0A CN103373204B (en) | 2012-04-25 | 2012-04-25 | A kind of sealing strip on outer side of car window and preparation method thereof |
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| CN103373204B CN103373204B (en) | 2016-11-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106394206A (en) * | 2015-07-31 | 2017-02-15 | 旭硝子株式会社 | Automobile beltline portion sound insulating structure and automobile door glass |
| CN108116198A (en) * | 2016-11-28 | 2018-06-05 | 长城汽车股份有限公司 | Water is cut and automobile door glass jacking system |
| CN109421494A (en) * | 2017-08-24 | 2019-03-05 | 江苏锋驰汽车车身制造有限公司 | A kind of vehicle window sealing structure |
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|---|---|
| CN103373204B (en) | 2016-11-02 |
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