CN206374171U - The radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber - Google Patents
The radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber Download PDFInfo
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- CN206374171U CN206374171U CN201621384649.9U CN201621384649U CN206374171U CN 206374171 U CN206374171 U CN 206374171U CN 201621384649 U CN201621384649 U CN 201621384649U CN 206374171 U CN206374171 U CN 206374171U
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- chopped fiber
- radial oriented
- resistance dam
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- 239000000835 fiber Substances 0.000 title claims abstract description 65
- 238000000465 moulding Methods 0.000 title claims abstract description 16
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 14
- 238000010070 extrusion (rubber) Methods 0.000 title claims abstract description 12
- 238000004513 sizing Methods 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 46
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 230000009977 dual effect Effects 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 27
- 238000003825 pressing Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 3
- 230000035800 maturation Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- 238000010008 shearing Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000013329 compounding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 208000010727 head pressing Diseases 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model is related to the radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber, including the entrance linked together, changeover portion, it is orientated section and mouth template, the orientation section is built-in with continuous resistance dam, the runner for being orientated section is formed by the symmetrical continuous resistance dam structure of regulating block and minute surface, its structure is the not contour dual waves wave structure of specular, continuous resistance dam structure resistance dam crest reduces step by step in orientation section, valley increases step by step, last extrusion neck ring mold, realize the radial oriented of chopped fiber, the utility model can realize the radial oriented process of fiber in tire tread molding equipment in existing remanufacture, do not change maturation remanufactures tire tread moulding process, strengthen its die swell ability in the crest and trough under by certain size and ratio using sizing material middle short fiber, make chopped fiber preferably radial oriented with optimal handpiece size.
Description
Technical field
The utility model is related to the radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber, especially in chopped fiber
The radial oriented extrusion molding apparatus for being applied to remanufacture tire tread.
Background technology
With developing rapidly for auto industry, the junked tire annual production of China is also global most.Junked tire conduct
Solid waste, is a kind of " black pollution ", how to clean and the high-valued junked tire that recycles is as a significant problem,
Currently, junked tire is recycled mainly has the ways such as tyre rebuilding, production rubber powder, production reclaimed rubber, damaged tire cracking
Footpath.Wherein, tyre rebuilding is the preferred manner that junked tire is recycled, have the advantages that it is most environmentally friendly, most save resource, into
Mode is recycled for the junked tire that developed country generally uses.Generally often renovate once, tire can be obtained equivalent to new
The service life of tire 60%~90%, the performance such as wear-resisting, safe nor affects on it and normally used.In raw material and energy resource consumption side
Face, retreads are respectively manufacture same specification new tyre 15%~30% and 20%~30%, and price only 20%~
50%, show that cut-fiber reinforcement rubber composite material is the ideal material for preparing high-performance retreads by substantial amounts of research
One of.Chopped fiber is added in sizing material, and chopped fiber is suitably oriented in sizing material, the rolling resistance of tire can be made substantially to drop
It is low, it was reported that for car tire, rolling resistance reduction by 5%~7% can save fuel 1%;For load-carrying tire, rolling resistance drop
It is low by 2%~4%, fuel 1% can be saved.And in each part of tire, the rolling resistance that tyre surface is produced occupies total roll and hindered
The 49% of power.Therefore, the rolling resistance of tyre surface is effectively reduced, important influence will be produced to saving the energy, reducing discharge, this is right
Have for petroleum resources increasingly China of scarcity and have very great significance;The tear resistance of tyre surface, wearability, anti-collapse use up block
Performance is improved, and can make tire lightweight, and can also make traveling lower noise, improves the comfortableness of seating, so as to meet wide
The consumption demand of the big people and meet national energy-saving, emission reduction, the production requirement of environmental protection.
CN101352927A discloses a kind of method for extruding and forming short fiber reinforced-rubber composite material in radial direction, will first contain
The rubber molten mass for having chopped fiber carries out extrusion processing in an extruder;Screw rod end in extruder barrel, rubber is squeezed into
Axial orientation runner, is orientated using sizing material flow direction, realizes that chopped fiber axial direction takes in the axial orientation runner of head
To;Sizing material after axial orientation, by resistance dam formed by the thickness as contracted channel, is utilized under extrusion pressure effect
Chopped fiber in the characteristics of rubber extruding expands, sizing material occurs rolling during rapid expansion after sizing material is by resistance dam and inclined
Tiltedly;Sizing material after expansion continues to flow along runner, in the centre and marginal portion of runner because velocity gradient aggravates inclination, short fibre
The radial oriented increase of dimension, and and then realize radial oriented.
CN101337435A discloses a kind of radial extruding forming device of cut-fiber reinforcement rubber composite material, its flange
Eight screwed holes are formed with front, with eight double threaded screws and nut by flange and changeover portion, resistance dam supporting plate, stereotype plate, machine
Head pressing plate is linked together successively in order, and excessive glue valve is housed directly over flange, and underface bores a screwed hole to install pressure biography
Sensor;A pair of resistance dam regulating blocks are placed in the middle of resistance dam supporting plate, resistance dam regulating bolt one end is fixed with resistance dam regulating block, the other end
It is connected through a screw thread and is connected with resistance dam supporting plate, resistance dam regulating bolt control resistance dam gap;A pair of sizings are placed in the middle of stereotype plate
Regulating block come adjust sizing gap, sizing regulating block be clipped between resistance dam supporting plate and head pressing plate and be fixed by screw.
CN102431145A discloses a kind of device for performing radial orientation molding on short fibers of tire tread rubber, is adjusted by head pressure
Bolt, head pressure adjustment valve and filter glue plate composition head entrance, by orientation gap regulating block, orientation clearance adjusting screw,
Bypass type block and orientation gap gripper shoe groups are radially orientated section, by gap adjustment block of shaping, sizing clearance adjusting screw and fixed
Type gap gripper shoe groups into sizing section;Eight through holes are evenly arranged on ring flange, respectively with eight bolts are by ring flange and extrude
Machine fuselage is connected, and head entrance is connected with ring flange and fixed with stiffener plate, and heating cooling is formed with head entrance
Water circulation channel, its arrival end is formed with worry offset plate, head pressure regulating valve respectively with head pressure regulating bolt and head entrance
Duan Xianglian.
All it is the characteristic expanded using rubber extruding in the radial oriented method of above-mentioned patent middle short fiber and principle, makes tire
Chopped fiber in the glue of face is rolled in sizing material expansion process along expansion direction, shows inclined trend, is finally made short
Fiber is radial oriented, but it is the not contour dual waves wave of specular not disclose continuous resistance dam in orientation section in the prior art
During structure under special ratios chopped fiber sizing material compression energy, i.e. ripple of the sizing material middle short fiber under by certain size and ratio
Peak and trough, the power of its die swell ability.
Utility model content
In order to change above mentioned problem in the prior art, the utility model provides the radial oriented enhancing tread rubber of chopped fiber and squeezed
Go out shaped device, including entrance, changeover portion, orientation section and the mouth template linked together, entrance sets one along extrusion side
To the filter plate of carded staple, continuous resistance dam structure is set in orientation section so that the chopped fiber in sizing material is with the compression of sizing material
Expansion is overturn, and is shaped in mouth mold section sizing material, and final chopped fiber is with radial direction i.e. perpendicular to extrusion direction in rubber
It is orientated in matrix.
Preferably:Continuous resistance dam structure is the symmetrical wave structure of minute surface, 2 sections of resistance dam first paragraph a length of 30mm, second
Segment length is 25mm, and every section of resistance dam peak value reduces step by step, the ultimate range between two peak values of specular be respectively 50mm and
40mm, valley increases step by step, and the ultimate range between two valleies of specular is respectively 30mm, 20mm and 10mm, mouth mold
The sizing material Way out of centre is arranged on, the runner for being orientated section is formed by the symmetrical continuous resistance dam structure of minute surface, and continuous resistance dam is adjusted
Adjustable column one end is connected by pressing plate on the outside of locking nub, the adjustable column other end is connected through a screw thread intermediate plate, intermediate plate, mouth template and
The fixed plate of changeover portion passes through Stud connection.
Preferably:Entrance be a flange, the flange center position be sizing material entrance, sizing material entrance by filter plate with
The runner of changeover portion is communicated, and filter plate is a perforated plate, and aperture is less than staple length, more than chopped fiber particle diameter, preferably 1.0-
3.6mm。
Preferably:The runner of entrance is gradually tapered up, and the excessive glue device of connection runner, excessive glue dress are set above entrance
Put including excessive glue valve and matched regulating bolt.
Preferably:Changeover portion includes temperature is housed on the outside of fixed plate and the runner formed on the inside of fixed plate, fixed plate
Sensor and pressure sensor.
The utility model has advantages below compared with prior art:One be can it is existing remanufacture tire tread into
The radial oriented process of fiber is realized in type equipment, do not change maturation remanufactures tire tread moulding process;Two be practical new
Type device volume is small, simple in construction, require relatively low to operating personnel's technical merit, so as to ensure that the quality of extruded tread sizing material is steady
It is qualitative good;Three be orientation process simple possible, is analyzed using chopped fiber suspension rheology, rubber is received in flow process
Velocity gradient is radially oriented fiber for negative elongation flow field effect, using sizing material by continuous resistance dam be specular not
During contour dual waves wave structure under special ratios chopped fiber sizing material compression energy, i.e., sizing material middle short fiber pass through specific chi
Strengthen its die swell ability during crest and trough under very little and ratio, and make the more preferable ground diameter of chopped fiber using optimal handpiece size
To orientation.
Brief description of the drawings
Fig. 1 is main sectional view of the present utility model;
Fig. 2 is principle schematic diagram of the present utility model;
Fig. 3 is glue stuff compounding under the different dimension scales of Wave crest and wave trough of the device specular of the present invention parallel to extrusion side
To the electron microscopic picture of cross section, when the distance between two valleies of specular are respectively 30mm, 20mm and 10mm, a, b, c
Distance is respectively 50mm and 40mm respectively between two peak values of specular, 50mm and 30mm, 50mm and 50mm, 40mm and
Electron microscopic picture during 50mm;
1 filter plate, 2 flanges, 3 excessive glue valve regulation bolts, 4 excessive glue valves, 5 temperature sensors, 6 adjustable columns, 7 continuous resistance dam regulations
Block, 8 mouth templates, 9 nuts, 10 studs, 11 pads, 12 mouth molds, 13 pressing plates, 14 intermediate plates, 15 fixed plates, 16 pressure sensors,
17 runner plates.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model provides the radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber, including even
Entrance, changeover portion, orientation section and the mouth template 8 being connected together, entrance set one along the filter for extruding direction carded staple
Continuous resistance dam structure 7 is set in plate 1, orientation section so that the chopped fiber in sizing material is overturn with the compression-expansion of sizing material,
Mouth mold section sizing material is shaped, and final chopped fiber is orientated with radial direction perpendicular to extrusion direction in rubber matrix.
Continuous resistance dam structure is the symmetrical wave structure of minute surface, and 2 sections of a length of 30mm of resistance dam first paragraph, second segment is a length of
25mm, every section of resistance dam peak value reduces step by step, and the ultimate range between two peak values of specular is respectively 50mm and 40mm, paddy
Value increases step by step, and the ultimate range between two valleies of specular is respectively 30mm, 20mm and 10mm, during mouth mold is arranged on
Between sizing material Way out, the runner for being orientated section is formed by the symmetrical continuous resistance dam structure of minute surface, on the outside of continuous resistance dam regulating block
The one end of adjustable column 6 is connected by pressing plate, the other end of adjustable column 6 is connected through a screw thread intermediate plate 14, intermediate plate 14, the and of mouth template 8
The fixed plate 15 of changeover portion is by Stud connection, as shown in figure 3, the different sizes of the Wave crest and wave trough of the device specular by inventing
Glue stuff compounding can be seen that this most very much not contour double wave spike of distance parallel to the electron microscopic picture of extrusion direction cross section under ratio
Under unrestrained structure proportion, chopped fiber die swell ability is maximum, extrudes the radial oriented degree highest of adhesive tape chopped fiber.
Entrance is a flange 2, and the center of flange 2 is sizing material entrance, and sizing material entrance passes through filter plate 1 and changeover portion
Runner communicate, filter plate 1 be a perforated plate, aperture be less than staple length, more than chopped fiber particle diameter, preferably 1.0-3.6mm.
The runner of entrance is gradually tapered up, and the excessive glue device of connection runner is set above entrance, and excessive glue device includes overflowing
Glue valve 4 and matched regulating bolt 3.
Changeover portion includes fixed plate 15 and the runner formed by the inner side of fixed plate 15, and the outside of fixed plate 15 is equipped with TEMP
Device 5 and pressure sensor 16.
The radial oriented enhancing tread rubber extrusion molding apparatus orientation feature of the chopped fiber of this example it is main by filter plate 1, it is continuous
Resistance dam alignment plate 8 and adjustment portion are grouped into, and the annexation of the present apparatus leans on bolt connection for the front end of flange 2 with cross-head,
Rear end welds together with runner plate 17, and there are excessive glue valve 4 and excessive glue valve regulation bolt 3, regulation orientation head in the top of runner plate 17
Interior pressure, reduces the pressure in aligning device by adjusting excessive glue valve regulation bolt 3 when pressure is excessive, temperature sensor 5,
Pressure sensor 16 is fixed in fixed plate 15, and the temperature and pressure in aligning device is monitored in real time, and sizing material flows through company
Potential energy increases when chopped fiber moves to trough with sizing material after continuous resistance dam alignment plate 8, then passes through crest section and obtains bigger stretching
Stress, chopped fiber is flowed through after multistage resistance dam, upset degree is further increased in the presence of shearing and elongation flow field, is realized again
Manufacture the forming process of fiber-wall-element model in tire tread glue.Runner plate opposite side has 6 screwed holes, is connected with stud 10, stud
Fixed plate 15, intermediate plate 14, mouth template 8 is fixed successively finally to be fixed by nut 9.Mouth mold 12 is fixed on mouth template.Flow simultaneously
Guidance tape 17 and mouth template 8 are provided with cooling water hole, and the temperature control of aligning device is realized under external temperature control device.Adjust part
Operation principle is:Adjustable column 6 is with intermediate plate 14 to be threadedly coupled, and the up and down motion of adjustable column can be realized by being connected through a screw thread,
And be that pressured plate 13 realizes connection between adjustable column 6 and continuous resistance dam regulating block 7, therefore the circumferential movement of screw thread is converted into company
The up and down motion of continuous resistance dam regulating block 7.
As shown in Fig. 2 the utility model device orientation principle:Glue is through expecting entrance filter plate with holes, and filter version aperture is less than short
Fibre length, more than chopped fiber particle diameter so that chopped fiber is orientated along extrusion direction, is flowed into after orientation section, chopped fiber is with glue
Material moves to trough section potential energy increase, to obtain bigger tensile stress when by crest section, due to continuous resistance dam structure
Resistance dam crest reduces step by step, valley increases step by step, chopped fiber is flowed through after multistage resistance dam in the presence of shearing and elongation flow field
Upset degree is further increased, extrusion neck ring mold, realizes the radial oriented of chopped fiber.It should be noted that the device withIt is cold
Material feeding pin bolt extruder is supporting.
The utility model fiber reinforcement, which remanufactures comprising the concrete steps that for tire tread radial extruding forming, will first contain
The tire tread glue that remanufactures of chopped fiber is added in extruder by screw rod progress extrusion plasticizing, the spiral shell in extruder barrel
Bar end, the tire tread glue that remanufactures after extrusion processing is squeezed into filter plate, realizes that axial direction of the chopped fiber in sizing material takes
To;Sizing material flows through the continuous resistance dam of gradually gap shrinks in extrusion pressure, it is ensured that while the abundant flowing of sizing material, increase
The potential energy of rubber, chopped fiber is flowed through after multistage resistance dam, upset degree is further increased in the presence of shearing and elongation flow field,
So as to realize that chopped fiber is radial oriented, it the experiment proved that, under ratio of the present utility model and size condition, its radial oriented journey
Spend highest.
The expressing technique flow that the radial oriented enhancing of the chopped fiber remanufactures tire tread extrusion molding apparatus is as follows:
1st, the tire tread glue that remanufactures containing chopped fiber is added in cold feed extruder, extruder is XJW60-200,
Screw speed is set to 15 revs/min, by the rotation and shearing of screw rod, realizes the extrusion processing for remanufacturing tire tread compound
Shaping;
2nd, remanufacture tire tread compound and enter utility model device after the conveying of screw rod, sizing material is certain by one
The filter plate 1 in aperture, chopped fiber is smoothed out with the fingers directly;
3rd, pressure in head is adjusted by adjusting excessive glue valve bolt 3, pressure is maintained 3-10M Pa, to ensure sizing material matter
The normal trouble free service of amount and equipment;
4 then tread mix reach orientation section through changeover portion, the continuous resistance dam structure in continuous resistance dam regulating block 7 can be with
Ensure sufficient sizing material flowing, sizing material is through overcompression, extrusion swelling after continuous resistance dam regulating block 7 for sizing material, and chopped fiber is radially passed through
The extruder head of mouth mold 12;
Embodiments above is merely to illustrate and unrestricted the technical solution of the utility model, does not depart from the utility model essence
Any modification or partial replacement of god, all should cover among right of the present utility model.
Claims (6)
1. chopped fiber it is radial oriented enhancing tread rubber extrusion molding apparatus, including link together entrance, changeover portion, orientation
Section and mouth template, entrance set one along the filter plate for extruding direction carded staple, are orientated in section and set continuous resistance dam structure, glue
Chopped fiber in material is overturn with the compression-expansion of sizing material, is shaped in mouth mold section sizing material, it is characterised in that:It is described to take
Into section, continuous resistance dam is the not contour dual waves wave structure of specular.
2. the radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber as claimed in claim 1, it is characterised in that:It is orientated section
Interior continuous resistance dam structure resistance dam crest reduces step by step, valley increases step by step, and 2 sections of a length of 30mm of resistance dam first paragraph, second segment is a length of
25mm, every section of resistance dam peak value reduces step by step, and the ultimate range between two peak values of specular is respectively 50mm and 40mm, paddy
Value increases step by step, and the ultimate range between two valleies of specular is respectively 30mm, 20mm and 10mm, during mouth mold is arranged on
Between sizing material Way out, the runner for being orientated section is formed by the symmetrical continuous resistance dam structure of minute surface, on the outside of continuous resistance dam regulating block
Adjustable column one end is connected by pressing plate, the adjustable column other end is connected through a screw thread intermediate plate, intermediate plate, mouth template and changeover portion
Fixed plate passes through Stud connection.
3. the radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber as claimed in claim 1, it is characterised in that:Continuous resistance
Adjustable column one end is connected by pressing plate on the outside of dam structure, the adjustable column other end is connected through a screw thread intermediate plate, intermediate plate, mouth template
Pass through Stud connection with the fixed plate of changeover portion.
4. the radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber as claimed in claim 1, it is characterised in that:Entrance
For a flange, the flange center position is sizing material entrance, and sizing material entrance is communicated by filter plate with the runner of changeover portion.
5. the radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber as claimed in claim 1, it is characterised in that:Entrance
Runner gradually taper up, the excessive glue device of connection runner is set above entrance, and excessive glue device includes excessive glue valve and matched
Regulating bolt.
6. the radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber as described in claim 1-5 is any, it is characterised in that:
Changeover portion includes temperature sensor and pressure sensing are housed on the outside of fixed plate and the runner formed on the inside of fixed plate, fixed plate
Device.
Priority Applications (1)
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CN201621384649.9U CN206374171U (en) | 2016-12-16 | 2016-12-16 | The radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber |
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CN201621384649.9U CN206374171U (en) | 2016-12-16 | 2016-12-16 | The radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106626442A (en) * | 2016-12-16 | 2017-05-10 | 青岛科技大学 | Method for enhancing extrusion molding of tread rubber by utilizing radial orientation of short fiber |
CN106738764A (en) * | 2016-12-16 | 2017-05-31 | 青岛科技大学 | The radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber |
CN111805869A (en) * | 2020-06-30 | 2020-10-23 | 南京玻璃纤维研究设计院有限公司 | Thread inner wall extrusion die and method for improving fiberization degree of film material rod |
CN111923359A (en) * | 2020-07-20 | 2020-11-13 | 广东聚石化学股份有限公司 | Glass fiber reinforced polypropylene material and preparation method and preparation device thereof |
-
2016
- 2016-12-16 CN CN201621384649.9U patent/CN206374171U/en active Active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106626442A (en) * | 2016-12-16 | 2017-05-10 | 青岛科技大学 | Method for enhancing extrusion molding of tread rubber by utilizing radial orientation of short fiber |
CN106738764A (en) * | 2016-12-16 | 2017-05-31 | 青岛科技大学 | The radial oriented enhancing tread rubber extrusion molding apparatus of chopped fiber |
CN106626442B (en) * | 2016-12-16 | 2019-07-26 | 青岛科技大学 | The radial oriented enhancing tread rubber extruding forming method of staple fiber |
CN111805869A (en) * | 2020-06-30 | 2020-10-23 | 南京玻璃纤维研究设计院有限公司 | Thread inner wall extrusion die and method for improving fiberization degree of film material rod |
CN111805869B (en) * | 2020-06-30 | 2022-04-15 | 南京玻璃纤维研究设计院有限公司 | Thread inner wall extrusion die and method for improving fiberization degree of film material rod |
CN111923359A (en) * | 2020-07-20 | 2020-11-13 | 广东聚石化学股份有限公司 | Glass fiber reinforced polypropylene material and preparation method and preparation device thereof |
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