CN106808638B - Moulding and forming method thereof, binding structure and vehicle window - Google Patents
Moulding and forming method thereof, binding structure and vehicle window Download PDFInfo
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- CN106808638B CN106808638B CN201510850096.5A CN201510850096A CN106808638B CN 106808638 B CN106808638 B CN 106808638B CN 201510850096 A CN201510850096 A CN 201510850096A CN 106808638 B CN106808638 B CN 106808638B
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- Prior art keywords
- moulding
- hollow ball
- body portion
- injection molding
- molding material
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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
- 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
- B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
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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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
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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
- B60J1/00—Windows; Windscreens; Accessories therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention provides a kind of moulding and forming method thereof, binding structure and vehicle window, and moulding includes body portion and multiple hollow balls for being scattered in body portion, wherein hollow ball includes the gas that the foaming agent of thermoplastic polymer shell and encapsulating inside the shell is formed；Body portion includes first and first opposite second and the middle part between first and second；It is distributed between at least part hollow ball of middle part and body portion that there are gaps.The beneficial effects of the present invention are, the gaps of formation can be used for reducing to a certain extent or offsetting deformation that the moulding surface formed occurred, collapses, and then can promote the production yield of the moulding of formation.
Description
Technical field
The present invention relates to automotive fields, and in particular to a kind of moulding and forming method thereof, binding structure and vehicle window.
Background technique
In order to improve the leakproofness of vehicle window so that vehicle window is preferably mounted among car body, the prior art car body with
The binding structure with sealing function is provided between vehicle window.
Existing binding structure is generally the moulding formed by Shooting Technique, that is to say, that needs injection raw material
Melt and pour into die for molding, cooling, to form moulding.But the injection raw material of the molten condition of high temperature is needed in mould
Molding is cooled and solidified in tool, and since transmission speed of the heat in injection molding material is inconsistent, the injection molding material on surface is more cooling to be become
Hard and then solidification, cooling slower, the receipts generated when gradually tapering up, and shrinking during cooling of the central part of injection molding material
Contracting power inwardly pulls injection molding material, this moulding surface for easilying lead to be formed deforms and collapses.It can not only lead in this way
Cause is formed by binding structure production yield and aesthetic measure is affected, it is also possible to cause binding structure that cannot install well
Assembly among car body or between influence binding structure and other component.
Existing binding structure is generally moulding, is formed by moulding using Shooting Technique and needs to cool down in a mold
Solidification.But please refer to shown in Fig. 1, it is the schematic diagram of the moulding 10 formed in the prior art, in the cooling mistake of moulding 10
A degree of contraction can occur for Cheng Zhong, moulding 10.Specifically, since the transmitting of 10 surface heat of moulding is very fast, moulding 10
Very fast cooling and curing molding；In contrast, the central part (please referring to the part in Fig. 1 center 12) of moulding 10 is due to warm
Transmitting is relatively slow and cooling is slower, and the central part of moulding 10 gradually tapers up and generates one to moulding 10 in cooling procedure
Power (please referring to two rows of arrows in Fig. 1) is pullled on surface, this surface for easilying lead to be formed by moulding 10 occurs one
Determine the deformation of degree and collapse 11, and then influence the production yield and aesthetic measure of the binding structure formed, also results in bound edge
Structure cannot be installed in car body well, or influenced other component and be assemblied on binding structure.
It is a kind of to solve that bound edge shrinks, the method that collapses is the entrained gas in injection molding material, in moulding cooling procedure, gas
Body occupies a part of space, reduces the contraction of moulding on the whole, thus solve to a certain extent bound edge shrink, asking of collapsing
Topic.But this method has the drawback that gas is easy evolution, this may cause bound edge surface there are stomata or generates gas trace.
The technology that another kind introduces stomata inside moulding is plastic foamed technology, such as the patent of Bath good fortune
Disclosed in CN1802408, it is mixed into physical blowing agent in TPU raw material to be foamed, the amount being added by control physical blowing agent
And TMA density obtains required foaming TPU, it, can be to avoid since gas is that be encapsulated in physical blowing agent shell intracorporal
The defect of surface pores or gas trace.However concern is primarily with the density of formed moulding for such technology, it is desirable to moulding
There is alap density, in the case where keeping intensity to mitigate weight, is formed by the main application packet of moulding
It includes sole, fascia etc. and requires the occasion that material weight is light, intensity is high, obtained moulding surface is relatively rough.It should
Class technology is unable to satisfy the high request of bound edge product Surface Quality at present.
Summary of the invention
Therefore, it is necessary to a kind of moulding and forming method thereof, binding structure and vehicle windows.It is formed with minimizing injection molding
The probability that binding structure deforms, collapses.
According to an aspect of the invention, there is provided a kind of moulding, including body portion and is scattered in more in the body portion
A hollow ball, wherein the hollow ball includes that thermoplastic polymer shell and the foaming agent being encapsulated in the shell are formed
Gas；The body portion includes first and first opposite second and between first and second
Middle part；It is distributed between at least part hollow ball of the middle part and the body portion that there are gaps.
One basic thought is that the gap being distributed between the hollow ball of the middle part and the body portion can block note
Power is pullled to moulding surface in plastic middle part contraction process, that is to say, that the gap can be used for a certain degree
Deformation that the moulding surface that upper reduction or counteracting are formed is occurred collapses, and then can promote the life of the moulding of formation
Produce yield.Meanwhile the shell of the hollow ball plays a supporting role to moulding body portion.
According to an aspect of the invention, there is provided a kind of method for forming moulding: providing injection raw material；In the note
Multiple expandable thermoplastic microspheres are mixed into modeling raw material, the expandable thermoplastic microspheres include thermoplastic polymer shell and packet
The foaming agent being enclosed in the shell；It melts the injection raw material to form injection molding material, so that the multiple expandable thermoplastic
Microsphere expansion becomes multiple hollow balls；The injection molding material for being mixed with the multiple hollow ball is injected into mold；It is cooling in injection molding material
It in contraction process, is separated with the injection molding material that mould side wall is not in contact at least part hollow ball and generates gap, to form note
Plastic.
One basic thought is, when moulding cooling meat, the middle part of moulding and is distributed in part therein
It is desorbed, separated to form the gap between empty ball, the gap of formation can block in moulding middle part contraction process to note
Pull power in plastic surface, that is to say, that the gap can be used for reducing to a certain extent or offsetting the injection molding formed
Deformation that part surface is occurred collapses, and then can promote the production yield of the moulding of formation.Meanwhile the hollow ball
Shell plays a supporting role to moulding body portion.
Detailed description of the invention
Fig. 1 is the schematic diagram of the moulding formed in the prior art；
Fig. 2 is that the injection molding material melted in method one embodiment of the invention for forming moulding is in showing in the cavity of mold
It is intended to；
Fig. 3 is the schematic diagram when present invention forms injection molding material cooling generation hole in one embodiment of method of moulding；
Fig. 4 is the partial enlarged view in Fig. 3 at box A；
Fig. 5 is the cross sectional microscopy photo of a moulding.
Specific embodiment
In view of the problems of the existing technology, the present invention provide a kind of moulding and forming method thereof, binding structure and
Vehicle window, the present invention is based on the discovery of inventor, the hollow ball that is formed in the foaming agent for being located at moulding middle part and moulding
Gap is introduced between body portion, this structure can be effectively prevented moulding surface deformation, collapse, and obtain the note of high surface quality
Plastic.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
Hereinafter, " expandable thermoplastic microspheres " are also referred to as physical blowing agent, usually with thermoplastic, polymeric materials
Shell, is encapsulated with foaming agent by polymer shell in microballoon, and foaming agent is usually compressed air or boiling temperature not higher than thermoplastic
The liquid of the softening temperature of property polymer shell.The polymer, for example, can be by making various ethylenically unsaturated monomers or monomer
Mixture polymerization obtains.Foaming agent, also referred to as foaming agent or propellant can use compressed air, chlorinated aliphatic hydrocarbon (example
Such as: monochloro methane, methylene chloride, dichloroethanes), one of alcohol, ether or a variety of.Temperature when microballoon starts expansion is known as
Tstart, and temperature when reaching maximum swelling is known as Tmax.
When " dwell time " refers to injection molding, material is full of the time kept under a certain pressure after type chamber.
" first 22 " refers to the part from 1/5 thickness on from moulding upper surface 101 to moulding thickness direction, " in
Between portion 23 " refer to that, to the part at 4/5 thickness from 1/5 thickness on moulding thickness direction, " second 24 " refers to from moulding
To the part of moulding lower surface 102 at 4/5 thickness on thickness direction.
Fig. 2 to Fig. 4 is please referred to, the structural schematic diagram of each step in one embodiment of method to form moulding.At this
In example, moulding is the binding structure for coating glass periphery.
Firstly, providing injection raw material.In the present embodiment, the injection raw material of pvc material can be provided.But this
Invention is not construed as limiting the injection raw material for providing which kind of material, in other embodiments of the invention, can also provide thermoplasticity
The injection raw material of polyamide or polyurethane material.
After this, multiple expandable thermoplastic microspheres are mixed into the injection raw material, the expandable thermoplastic microspheres
Shell with acrylic materials, encapsulated inside compressed nitrogen.The expandable thermoplastic microspheres are mixed into injection raw material
After will enter together plasticizing apparatus (for example, screw or plunger type plasticator) with injection raw material, be warming up to 180 DEG C, make
It obtains injection raw material to melt and be plasticized uniformly to form injection molding material, while in this plasticizing process, the third of expandable thermoplastic microspheres
The softening of olefin(e) acid resin material shell, the compressed nitrogen expansion of enclosure interior encapsulating cause during thermoplastic microspheres expand and to be formed
Empty ball 200.
It should be noted that also can choose the thermoplastic microspheres of other case materials, such as pvc material, so that
Plasticization temperature is located between the Tstart and Tmax of expandable thermoplastic microspheres；Also can choose others, to be encapsulated in shell intracorporal
Foam agent material, such as the mixture of isooctane and isopentane.The expandable thermoplastic microspheres can be can buy in the market
Physical blowing agent, such as AkzoNobel productionFoaming agent.
Later, the injection molding material for being blended with hollow ball 200 is injected into mold cavity.Fig. 2 is that injection molding material has just enter into mold
The schematic diagram of type chamber, as shown, body portion 100 includes upper surface 101 and lower surface 102, upper surface 101 is bonded in mold cavity
Wall, and the surface that final bound edge product can be observed, for the fitting of lower surface 102 by by the glass plate of bound edge, lower surface 102 will
Bound edge is connected together with glass.Body portion 100 may be roughly divided into first 22 and first 22 of neighbouring type cavity wall relatively
Second 24 and the middle part 23 between first 22 and second 24.As shown in Fig. 2, being full of mould in injection molding material
The moment of tool type chamber is dispersed with multiple hollow balls 200 in body portion 100.
Then, the dwell time is appropriately extended, i.e., material is full of the time kept under a certain pressure after type chamber.Common packet
The dwell time of side product is to use 5 seconds dwell times in this example embodiment less than 3 seconds.Within the dwell time, first 22
With second 24 since respectively close to surface 101 and surface 102, cooling velocity is very fast, therefore in first 22 and second 24
Hollow ball 200 comparatively fast solidify.Due to use be appropriately extended dwell time, the time that moulding is kept in mold compared with
It is long, so that the cooling rate of middle part 23 is slack-off, that is, the hollow ball 200 of middle part 23 is that Slow cooling (is higher than hollow
The time of the softening temperature of 200 shell of ball is extended), this makes the hollow ball 200 of middle part 23 within the extended dwell time
Contracts last, effect is the interface generation micro chink in hollow ball 200 and body portion 100, in subsequent injection molding material cooling meat
In the process, the stress that body portion 100 generates discharges at micro chink, even if the injection molding material of middle section continues cooling meat, also only
It is to continue to expand by the microvoid of formation, the influence to the moulding surface of formation becomes very little, and then can reduce moulding
The probability that surface deforms, collapses promotes the production yield of the moulding of formation.
There is sky between the hollow ball 200 and body portion 100 of middle part 23 in schematic diagram such as Fig. 3 of the bound edge finished product of formation
Gap 110, and gap is not present between body portion 100 rapidly due to solidifying by the hollow ball 200 of near surface 101 and 102.Part
Enlarged diagram between the hollow ball 200 and body portion 100 on moulding surface as shown in figure 4, be not present gap, middle part
There are widened gaps 110 between 23 hollow ball 200 and body portion 100, generally speaking, visually observe or microscopically observation produces
Product section is it can be found that the average-size in the gap 110 between the hollow ball 200 and body portion 100 of middle part 23 is greater than first
22 and second 24 hollow ball 200 and body portion 100 between gap 110 average-size.When specific detection, such as scanning
Observed under electron microscope, it can be found that the gap 110 between first 22 and second 24 hollow ball 200 and body portion 100
Smaller or tight；Between the hollow ball 200 and body portion 100 of middle part 23 there are obvious gaps 110.
Other than it can reduce the advantages of moulding surface deforms, collapses, another advantage of the embodiment is,
Due between first 22 and second 24 hollow ball 200 and body portion 100 there is no gap 110 or gap 110 are smaller,
That is hollow ball 200 and the contact area in body portion 100 is larger, so that the shell of hollow ball 200 plays machine to the body portion 100 of moulding
Tool supporting role, so that bound edge is unlikely to deform.
In addition, these hollow balls 200 occupy certain volume, thus the investment of injection raw material can be reduced, it is advantageous in this way
In saving injection raw material in the actual production process.
It should be noted that Fig. 3 and Fig. 4 is only schematic diagram that is succinct, being easy to understand, in the product actually obtained, and
Be not necessarily to it is each be respectively formed gap 110 around the hollow ball 200 of middle part 23, the gap 110 is also and shape heterogeneous
At around hollow ball 200.
Fig. 5 shows the photo of the section of a bound edge product under an optical microscope.As shown in figure 5, hollow ball 200 exists
The smooth sphere one by one in surface is rendered as in photo, the section in body portion 100 is rendered as reflective, roughish portion in photo
Point, gap 110 is rendered as black in photo.From fig. 5, it can be seen that being formed around not each hollow ball 200 free
Gap 110, gap 110 are also not formed uniformly around hollow ball 200.In order to guarantee to have enough gaps to receive injection molding material
The stress that contracting generates is released, it is preferable that observes the section of moulding under the microscope, the hollow ball of middle part is at least
There are gaps between 10% and body portion, it is preferable that there are gaps between at least 20% and body portion of the hollow ball of middle part, intermediate
There are gaps between at least 30% and body portion of the hollow ball in portion.When specific detection, such as observe under a scanning electron microscope
1000 μm or 500 μm of width of body portion section (such as illustrated in fig. 5 is about 650 μm of width of body portion section), can be with
It observes, the hollow ball quantity between body portion there are gap accounts at least the 10% of all hollow ball quantity.
It should also be noted that, the size of the hollow ball 200 after expansion is not easy excessive, it otherwise be easy to cause moulding table
Surface roughness increase, it is preferable that the size of the hollow ball 200 after expanding be not more than 100 μm, by select be suitble to size can
The size of hollow ball 200 may be implemented no more than 100 μm in expanded thermoplastic microspheres.For example, expandable thermoplastic microspheres are usually swollen
Swollen to 5 times sizes, therefore 80 μm of hollow ball 200 in order to obtain, can choose inflatable thermal of the original dimension at 15 μm or so
Plasticity microballoon.
It should also be noted that, the extended dwell time is not easy too long, dwell time of recommendation is 3-30S, more than 30S's
Dwell time is limited for the effect for further increasing the gap between hollow ball and body portion, and can reduce production efficiency, excellent
Selection of land, dwell time 4-6S.
It should also be noted that, the percentage that hollow ball accounts for moulding should be adjusted according to the contraction ratio of injection molding material
Section, the weight percent that generally hollow ball accounts for moulding is no more than 3%, otherwise may will affect moulding surface quality, hollow
Weight ratio shared by ball is too low, plays the role of limited, it is preferable that the weight percent that hollow ball accounts for moulding is 2%-3%.
It should also be noted that, can be by other householder methods, so that the part rapid cooling of neighbouring mold cavity, example
Such as by way of to mold water cooling, so that mould inner wall fast cooling, the advantage of doing so is that may insure apart from moulding
Tight between hollow ball in a distance of surface and body portion, gap exist only between the hollow ball of middle part and body portion.
It should also be noted that, so that the method for generating gap between the hollow ball and body portion of injection molding material middle part is not limited to
Previous embodiment.In another example, using hot flow path, i.e., to from injection moulding die casting mouth to product type chamber between glue point
Runner heated, the thermoplastic microspheres in such injection molding material begin to expand in runner.Compared to the situation of cold runner,
In dwell time identical situation, softening temperature is higher than by 200 shell of hollow ball in the injection molding material of hot flow path injection
Time be extended, therefore the hollow ball of injection molding material middle part be easier to and body portion desorption, generate gap.
The embodiment by moulding be bound edge for, it should be noted that the injection moulding process can be also used for preparation in addition to
Surface Quality except bound edge has the moulding of high request, such as some high-quality plastics household items.
In another embodiment of the present invention, a kind of moulding is provided, with reference to Fig. 3, which includes body portion 100
(material in body portion can be any suitable material such as polyvinyl chloride, polyamide thermoplastic or polyurethane material) and
The multiple hollow balls 200 being scattered in body portion 100, the hollow ball 200 include that thermoplastic polymer is (such as acrylic resin, poly-
Vinyl chloride etc.) it shell and is encapsulated in the intracorporal foaming agent of shell (such as compressed air, compressed nitrogen, isooctane and isopentane etc.)
The gas of formation, the body portion 100 include first 22, second 24 and between first 22 and second 24 in
Between portion 23, from partial enlargement Fig. 4 can be seen that between the hollow ball 200 and body portion 100 on moulding surface there is no sky
Gap, there are widened gaps 110 between the hollow ball 200 and body portion 100 of middle part 23, generally speaking, middle part 23 it is hollow
Hollow ball 200 of the average-size in the gap 110 between ball 200 and body portion 100 greater than first 22 and second 24 and body portion
The average-size in the gap 110 between 100.
One advantage of the moulding is, in the case where body portion 100 is shunk, between hollow ball 200 and body portion 100
Gap blocked body portion 100 shrink generate stress transfer to surface, to prevent internal stress from pullling surface, in turn
It can reduce the probability that moulding surface deforms, collapses.
Other than it can reduce the advantages of moulding surface deforms, collapses, another advantage of the embodiment is,
Due between first 22 and second 24 hollow ball 200 and body portion 100 there is no gap 110 or gap 110 are smaller,
Hollow ball 200 and the contact area in body portion 100 are larger, so that the shell of cured hollow ball 200 plays the body portion 100 of moulding
It is acted on to mechanical support, so that moulding is unlikely to deform.
In addition, these hollow balls 200 occupy certain volume, thus the investment of injection raw material can be reduced, it is advantageous in this way
In saving injection raw material in the actual production process.
It should be noted that Fig. 3 and Fig. 4 is only schematic diagram that is succinct, being easy to understand, in actual product, not necessarily
It each need to be respectively formed gap 110 around the hollow ball 200 of middle part 23, which also and heterogeneous is formed in
Around hollow ball 200.
Fig. 5 shows the photo of the section of a bound edge product under an optical microscope.As shown in figure 5, hollow ball 200 exists
The smooth sphere one by one in surface is rendered as in photo, the section in body portion 100 is rendered as reflective, roughish portion in photo
Point, gap 110 is rendered as black in photo.From fig. 5, it can be seen that being formed around not each hollow ball 200 free
Gap 110, gap 110 are also not formed uniformly around hollow ball 200.In order to guarantee to have enough gaps to receive injection molding material
The stress that contracting generates is released, it is preferable that there are gaps between at least 10% and body portion of the hollow ball of middle part, preferably
Ground, there are gap, at least 30% and body portions of the hollow ball of middle part between at least 20% and body portion of the hollow ball of middle part
Between there are gaps.
It should also be noted that, the size of the hollow ball 200 after expansion is not easy excessive, it otherwise be easy to cause moulding table
Surface roughness increase, it is preferable that the size of the hollow ball 200 after expanding be not more than 100 μm, by select be suitble to size can
The size of hollow ball 200 may be implemented no more than 100 μm in expanded thermoplastic microspheres.For example, expandable thermoplastic microspheres are usually swollen
Swollen to 5 times sizes, therefore 80 μm of hollow ball 200 in order to obtain, can choose inflatable thermal of the original dimension at 15 μm or so
Plasticity microballoon.
It should also be noted that, the percentage that hollow ball accounts for moulding should be adjusted according to the contraction ratio of injection molding material
Section, the weight percent that generally hollow ball accounts for moulding is no more than 3%, otherwise may will affect moulding surface quality, hollow
Weight ratio shared by ball is too low, plays the role of limited, it is preferable that the weight percent that hollow ball accounts for moulding is 2%-3%.
The moulding of the present embodiment can be applied to such as automobile glass encapsulation, and other than bound edge to surface matter
Amount has the moulding of high request, such as some high-quality plastics household items.
The moulding of the present embodiment can be prepared by preceding method embodiment, can also be obtained by other methods
It arrives, for example, using hot flow path, i.e., to heating into the runner between glue point from injection moulding die casting mouth to product type chamber, this
Thermoplastic microspheres in sample injection molding material begin to expand in runner.It is identical in the dwell time compared to the situation of cold runner
In the case of, the time higher than softening temperature of 200 shell of hollow ball in injection molding material injected by hot flow path is extended, therefore
The hollow ball of injection molding material middle part is easier to be desorbed with body portion, generates gap.
It should also be noted that, can be made by other householder methods hollow ball in first 22 and second 24 with
Tight between body portion, such as the part of neighbouring wall of die cavity is quickly cooled down, such as pass through the side to mold water cooling
Formula, so that mould inner wall fast cooling.
In addition, the binding structure includes above-mentioned moulding the present invention also provides a kind of binding structure.In addition, in this reality
It applies in example, the binding structure further includes card slot, and the card slot is for placing glass.But this is only one embodiment, this
Invention is not limited in any way this.
In addition, the vehicle window includes glass and above-mentioned binding structure, wherein institute the present invention also provides a kind of vehicle window
State the edge that binding structure is set to the glass.But this is only one embodiment, the present invention is not limited in any way this.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (12)
1. a kind of moulding, which is characterized in that including body portion and the multiple hollow balls being scattered in the body portion, wherein described
Hollow ball includes the gas that thermoplastic polymer shell and the foaming agent being encapsulated in the shell are formed；The body portion includes the
One and first opposite second and the middle part between first and second；It is distributed in described
Between portion hollow ball at least 10% and the body portion between there are gaps and the hollow ball in the moulding
Weight percent is not more than 3%.
2. moulding as described in claim 1, which is characterized in that at least 20% be distributed in the hollow ball of the middle part
There are gaps between the body portion.
3. moulding as described in claim 1, which is characterized in that at least 30% be distributed in the hollow ball of the middle part
There are gaps between the body portion.
4. moulding as described in claim 1, which is characterized in that be distributed in described first and second a part of hollow
There are gaps between ball and the body portion, are distributed in the average ruler in the gap between the hollow ball of the middle part and the body portion
The very little average-size for being greater than the gap being distributed between first and second hollow ball and the body portion.
5. moulding as described in claim 1, which is characterized in that the average diameter of the hollow ball is not more than 100 microns.
6. moulding as described in claim 1, which is characterized in that weight percent of the hollow ball in the moulding
In the range of 2%~3%.
7. moulding as described in claim 1, which is characterized in that the material in the body portion of the moulding is polyvinyl chloride, heat
Plastic polyamide or polyurethanes.
8. a kind of method for forming moulding characterized by comprising
Injection raw material is provided；
Multiple expandable thermoplastic microspheres are mixed into the injection raw material, the expandable thermoplastic microspheres include thermoplastic poly
The foaming agent for closing beyond the region of objective existence shell and being encapsulated in the shell；
Melt the injection raw material to form injection molding material so that the multiple expandable thermoplastic microspheres be expanded into it is multiple hollow
Ball；
The injection molding material for being mixed with the multiple hollow ball is injected into mold；
During injection molding material cooling meat, at least the one of the injection molding material and the multiple hollow ball that are not in contact with mould side wall
It is partially separated and generates gap, to form moulding；
During the injection molding material cooling meat, the extension dwell time makes the dwell time be 3-30 seconds.
9. method according to claim 8, which is characterized in that so that the dwell time is 4-6 seconds.
10. method according to claim 8, which is characterized in that make mixed multiple expandable thermoplastic microspheres in the note
Weight percent in plastic is not more than 3%.
11. a kind of binding structure characterized by comprising
Moulding as described in any one of claims 1 to 7.
12. a kind of vehicle window characterized by comprising
Glass, and
Binding structure as claimed in claim 11, the binding structure are set to the edge of the glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850096.5A CN106808638B (en) | 2015-11-27 | 2015-11-27 | Moulding and forming method thereof, binding structure and vehicle window |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850096.5A CN106808638B (en) | 2015-11-27 | 2015-11-27 | Moulding and forming method thereof, binding structure and vehicle window |
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| Publication Number | Publication Date |
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| CN106808638A CN106808638A (en) | 2017-06-09 |
| CN106808638B true CN106808638B (en) | 2019-07-02 |
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| CN115381220B (en) * | 2022-09-23 | 2024-04-16 | 戴博思昆(杭州)科技有限公司 | Multifunctional shoe cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5662731A (en) * | 1992-08-11 | 1997-09-02 | E. Khashoggi Industries | Compositions for manufacturing fiber-reinforced, starch-bound articles having a foamed cellular matrix |
| GB2305885B (en) * | 1995-10-05 | 1999-04-28 | Autoliv Dev | Improvements in or relating to a padding element |
| JP2001353744A (en) * | 2000-06-14 | 2001-12-25 | Canon Inc | Resin molded article for acoustic instrument of imaging instrument, housing structure of acoustic instrument or imaging instrument, resin molded article molded from resin material, damping member, damping mechanism, and fastening member |
| DE10236509A1 (en) * | 2002-08-09 | 2004-02-19 | Behr Gmbh & Co. | Injection molding material for shaped parts, useful for light weight sections, strips, tubes, hoses and plates for motor vehicles, aircraft and the space industry, comprises a plastics base material and foamed filler particles |
| DE10326138A1 (en) * | 2003-06-06 | 2004-12-23 | Basf Ag | Process for the production of expandable thermoplastic elastomers |
| CN104647679B (en) * | 2013-11-22 | 2018-07-17 | 法国圣戈班玻璃公司 | Form method, vehicle window and the mold of automobile glass encapsulation |
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2015
- 2015-11-27 CN CN201510850096.5A patent/CN106808638B/en not_active Expired - Fee Related
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