CN105398018B - A kind of production equipment and production technology of new multicolour wood plastic composite - Google Patents
A kind of production equipment and production technology of new multicolour wood plastic composite Download PDFInfo
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- CN105398018B CN105398018B CN201510826356.5A CN201510826356A CN105398018B CN 105398018 B CN105398018 B CN 105398018B CN 201510826356 A CN201510826356 A CN 201510826356A CN 105398018 B CN105398018 B CN 105398018B
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- screw rod
- plastic composite
- wood plastic
- spout
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- 229920001587 Wood-plastic composite Polymers 0.000 title claims abstract description 41
- 239000011155 wood-plastic composite Substances 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 16
- 239000002023 wood Substances 0.000 claims abstract description 14
- 238000007493 shaping process Methods 0.000 claims abstract 2
- 238000005086 pumping Methods 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 9
- 239000004595 color masterbatch Substances 0.000 claims description 8
- PLXMOAALOJOTIY-FPTXNFDTSA-N Aesculin Natural products OC[C@@H]1[C@@H](O)[C@H](O)[C@@H](O)[C@H](O)[C@H]1Oc2cc3C=CC(=O)Oc3cc2O PLXMOAALOJOTIY-FPTXNFDTSA-N 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 230000002045 lasting effect Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000000740 bleeding effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 4
- 239000004594 Masterbatch (MB) Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000771208 Buchanania arborescens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/297—Feeding the extrusion material to the extruder at several locations, e.g. using several hoppers or using a separate additive feeding
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/832—Heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of production equipment and production technology of new multicolour wood plastic composite, production equipment includes frame, main motor, screw rod, machine barrel, vacuum extractor, main drawing-in device, secondary drawing-in device, the screw rod are made up of conical section and cylindrical portion, and the cylindrical portion is located at the shallow screw channel of conical section；Production technology, it includes machine barrel and mould preheats, and adds the wood plastic composite particle of light colour, speed governing, opens vavuum pump, the Masterbatch to heighten the color, shaping.The equipment extrusion pressure of the present invention is high, with main drawing-in device, secondary drawing-in device, vacuum extractor tapered single screw extruder, extruded velocity is reasonable, bubble-free bulge, and for producing high wood powder content multicolour wood plastic composite, technique is accurately efficient.
Description
Technical field
The present invention relates to a kind of production equipment of wood plastic composite and production technology, and in particular to a kind of colorful wood moulding is answered
The production equipment and production technology of condensation material.
Background technology
Traditional wood plastic composite entire body solid colour, achromatization, multicolour wood plastic composite are developed into grinding
Study carefully one of focus.Traditional single screw extrusion machine is due to without vacuum extractor, dereliction drawing-in device, easily producing bubble, bulge
The problems such as, production is extruded by low velocity, extrusion pressure is small, and efficiency is low, is eliminated by industry.Existing multicolour
Wood plastic composite is mainly produced using conical double screw extruder, in light wood moulding particle, adds dark color masterbatch to obtain
Multicolour wood plastic composite.The primary raw material of wood plastic composite is recycled plastic, and composition is unstable, particularly multi-component
Mix recycled plastic, performance difference is larger.Conical double screw extruder plasticizing is preferable, and color masterbatch easily mixes recovery with multi-component
The compatible conjunction of wood moulding particle or partially compatible prepared by plastics is closed, and causes multicolour wood plastic composite background color color burn, color
Multi-color cord bar is unstable, poor reproducibility, color mixture spot particularly easily occurs, and product rejection rate is very high.
The content of the invention
Goal of the invention：The invention aims to overcome deficiency of the prior art, there is provided a kind of extrusion pressure is high, band
There are main drawing-in device, secondary drawing-in device, the tapered single screw extruder of vacuum extractor, extruded velocity is reasonable, bubble-free bulge,
For the equipment for producing high wood powder content multicolour wood plastic composite and its accurate efficient production technology.
Technical scheme：In order to solve the above-mentioned technical problem, a kind of new multicolour wood plastic composite of the present invention
Production equipment, it includes frame, and one end is provided with main motor above the frame, and the main motor is connected with screw rod, described
Screw rod is arranged in machine barrel, main spout and secondary spout is provided with the machine barrel, in the main spout and secondary spout
Between machine barrel be provided with vacuum pumping opening, the vacuum pumping opening is connected with vacuum extractor, and the main spout is fed with main
Material device is connected, and the secondary spout is connected with secondary drawing-in device, and the screw rod is made up of conical section and cylindrical portion, the cylindricality
Section is located at the shallow screw channel of conical section.
The main spout, secondary spout and vacuum pumping opening are all located on the machine barrel at screw rod conical section.
The spiral groove depth of the screw rod conical section is gradually reduced, extremely minimum with cylindrical portion junction.
The machine barrel Shang Youqige heating-up temperatures area.
Respective forwardtransfer signal worm is all carried on the main drawing-in device and secondary drawing-in device.
Using the production technology of wood plastic composite of the equipment production with polychrome color effect, it comprises the following steps,
A, machine barrel and mould are preheated, successively decreased for 150 DEG C from 180 DEG C of charging zone to extrusion zone to barrel zone temperature, mold temperature
140-150 DEG C, then lasting constant temperature more than 2 hours；
B, the wood plastic composite particle of light colour is added in main drawing-in device, is separately turned on main motor and main feeding
Device, by Screw Extrusion, the rotating speed 10-70rpm of main motor screw rod, after selecting a suitable main motor screw speed, slowly
And the rotating speed of the main drawing-in device screw rod of increase step by step, the rotating speed 10-70rpm of main drawing-in device screw rod so that main motor
Electric current is in the 50%-80% of Rated motor electric current；
C, wood plastic composite particle moisture content volatilization after screw rod conical section is heated, after electric current is stable, opens vavuum pump,
Take moisture away；
D, dark colour Masterbatch is added in secondary drawing-in device, wood plastic composite from extruder by mould just
After normal extrusion molding, secondary drawing-in device is opened, the rotating speed of secondary drawing-in device screw rod is 10-70rpm, obtains multicolour wood plastics composite
Material.
Beneficial effect：Compared with prior art, its remarkable advantage is the present invention：First, the present invention uses Single screw extrusion,
Plastify mixed to weaken, wood moulding particle is not easy to blend with Masterbatch, and it is more to efficiently solve the production of multicomponent recycled plastic
The problem of color wood plastic composite color is unstable；Second, the present invention devises the single screw rod of one group of taper, and screw rod is by conical section
Formed with cylindrical portion, the screw channel of conical section screw rod gradually becomes shallower as, and is substantially deeper than cylindrical portion so that wood moulding particle is in conical section spiral shell
It is not fully filled with bar, is in " hungry feeding " state all the time, and be heated in this section, moisture evaporation, is taken out with vacuum extractor
Walk；3rd, the present invention devises main drawing-in device, make single screw extrusion machine of the present invention can adjust respectively engine speed and
Main feeding rotating speed, i.e. extrusion pressure can adjust, and solve the problems, such as that color shape is unadjustable during Single screw extrusion, enriches color
Color texture；4th, the present invention devises the screw-rod structure that conical section is combined with cylindrical portion, adds the extrusion pressure of single screw rod
Power, suitable for the production of high wood powder content multicolour wood plastic composite；5th, the present invention devises secondary drawing-in device, changes
It is traditional it is direct Masterbatch is first mixed with wood moulding particle after the mode extruded again, simplify production stage, while make color masterbatch
Addition can be adjusted at any time, be advantageous to adjust the lines of color and abundant degree at any time.
Brief description of the drawings
Fig. 1 is the structural representation of heretofore described production equipment；
Fig. 2 is the structural representation of heretofore described screw rod and machine barrel.
Embodiment
Invention is further described with reference to the accompanying drawings and examples.
Embodiment 1：
As depicted in figs. 1 and 2, the production equipment of a kind of new multicolour wood plastic composite of the present invention, it is wrapped
Including rack 1, one end is provided with main motor 2 above the frame 1, and the main motor 2 is connected with screw rod 3, and the screw rod 3 is arranged on
In machine barrel 4, main spout 5 and secondary spout 6 are provided with the machine barrel 4, between the main spout 5 and secondary spout 6
Machine barrel 4 be provided with vacuum pumping opening 7, the vacuum pumping opening 7 is connected with vacuum extractor 8, and the main spout 5 is fed with main
Expect that device 9 is connected, the secondary spout 6 is connected with secondary drawing-in device 10, and the screw rod 3 is by 12 groups of conical section 11 and cylindrical portion
Into the cylindrical portion 12 is located at the shallow screw channel of conical section 11；The main spout 5, secondary spout 6 and vacuum pumping opening 7 are all
It is located on the machine barrel at the conical section 11 of screw rod 3；The spiral groove depth of the conical section 11 of the screw rod 3 is gradually reduced, to cylindrical portion 12
Place is minimum.
Using the production technology of wood plastic composite of the equipment production with polychrome color effect, it comprises the following steps,
A, machine barrel and mould are preheated, from charging zone to extrusion zone is 180 DEG C/180 DEG C/160 DEG C/160 to barrel zone temperature
DEG C/155 DEG C/150 DEG C/150 DEG C, 140 DEG C of mold temperature, then lasting constant temperature 2 hours；
B, the wood plastic composite particle of light colour is added in main drawing-in device, is separately turned on main motor and main feeding
Device, by Screw Extrusion, main motor screw speed 15rpm is selected, then the slow and main drawing-in device screw rod of increase step by step
Rotating speed so that the electric current of main motor is in the 50% of Rated motor electric current；
C, wood plastic composite particle moisture content volatilization after screw rod conical section is heated, after electric current is stable, opens vavuum pump,
Take moisture away；
D, dark colour Masterbatch is added in secondary drawing-in device, wood plastic composite from extruder by mould just
After normal extrusion molding, secondary drawing-in device is opened, the rotating speed of secondary drawing-in device screw rod is 10rpm, obtains multicolour wood and plastic composite
Material.
Embodiment 2：
As depicted in figs. 1 and 2, the production equipment of a kind of new multicolour wood plastic composite of the present invention, it is wrapped
Including rack 1, one end is provided with main motor 2 above the frame 1, and the main motor 2 is connected with screw rod 3, and the screw rod 3 is arranged on
In machine barrel 4, main spout 5 and secondary spout 6 are provided with the machine barrel 4, between the main spout 5 and secondary spout 6
Machine barrel 4 be provided with vacuum pumping opening 7, the vacuum pumping opening 7 is connected with vacuum extractor 8, and the main spout 5 is fed with main
Expect that device 9 is connected, the secondary spout 6 is connected with secondary drawing-in device 10, and the screw rod 3 is by 12 groups of conical section 11 and cylindrical portion
Into the cylindrical portion 12 is located at the shallow screw channel of conical section 11；The main spout 5, secondary spout 6 and vacuum pumping opening 7 are all
It is located on the machine barrel at the conical section 11 of screw rod 3；The spiral groove depth of the conical section 11 of the screw rod 3 is gradually reduced, to cylindrical portion 12
Place is minimum.
Using the production technology of wood plastic composite of the equipment production with polychrome color effect, it comprises the following steps,
A, machine barrel and mould are preheated, from charging zone to extrusion zone is 180 DEG C/180 DEG C/160 DEG C/160 to barrel zone temperature
DEG C/155 DEG C/150 DEG C/150 DEG C, 145 DEG C of mold temperature, then lasting constant temperature 2 hours；
B, the wood plastic composite particle of light colour is added in main drawing-in device, is separately turned on main motor and main feeding
Device, by Screw Extrusion, main motor screw speed 30rpm is selected, then the slow and main drawing-in device screw rod of increase step by step
Rotating speed so that the electric current of main motor is in the 60% of Rated motor electric current；
C, wood plastic composite particle moisture content volatilization after screw rod conical section is heated, after electric current is stable, opens vavuum pump,
Take moisture away；
D, dark colour Masterbatch is added in secondary drawing-in device, wood plastic composite from extruder by mould just
After normal extrusion molding, secondary drawing-in device is opened, the rotating speed of secondary drawing-in device screw rod is 20rpm, obtains multicolour wood and plastic composite
Material.
Embodiment 3：
As depicted in figs. 1 and 2, the production equipment of a kind of new multicolour wood plastic composite of the present invention, it is wrapped
Including rack 1, one end is provided with main motor 2 above the frame 1, and the main motor 2 is connected with screw rod 3, and the screw rod 3 is arranged on
In machine barrel 4, main spout 5 and secondary spout 6 are provided with the machine barrel 4, between the main spout 5 and secondary spout 6
Machine barrel 4 be provided with vacuum pumping opening 7, the vacuum pumping opening 7 is connected with vacuum extractor 8, and the main spout 5 is fed with main
Expect that device 9 is connected, the secondary spout 6 is connected with secondary drawing-in device 10, and the screw rod 3 is by 12 groups of conical section 11 and cylindrical portion
Into the cylindrical portion 12 is located at the shallow screw channel of conical section 11；The main spout 5, secondary spout 6 and vacuum pumping opening 7 are all
It is located on the machine barrel at the conical section 11 of screw rod 3；The spiral groove depth of the conical section 11 of the screw rod 3 is gradually reduced, to cylindrical portion 12
Place is minimum.
Using the production technology of wood plastic composite of the equipment production with polychrome color effect, it comprises the following steps,
A, machine barrel and mould are preheated, from charging zone to extrusion zone is 180 DEG C/180 DEG C/160 DEG C/160 to barrel zone temperature
DEG C/155 DEG C/150 DEG C/150 DEG C, 150 DEG C of mold temperature, then lasting constant temperature 2 hours；
B, the wood plastic composite particle of light colour is added in main drawing-in device, is separately turned on main motor and main feeding
Device, by Screw Extrusion, main motor screw speed 50rpm is selected, then the slow and main drawing-in device screw rod of increase step by step
Rotating speed so that the electric current of main motor is in the 80% of Rated motor electric current；
C, wood plastic composite particle moisture content volatilization after screw rod conical section is heated, after electric current is stable, opens vavuum pump,
Take moisture away；
D, dark colour Masterbatch is added in secondary drawing-in device, wood plastic composite from extruder by mould just
After normal extrusion molding, secondary drawing-in device is opened, the rotating speed of secondary drawing-in device screw rod is 50rpm, obtains multicolour wood and plastic composite
Material.
The present invention uses Single screw extrusion, and screw rod is made up of conical section and cylindrical portion, adds main drawing-in device, secondary feeding
Device and vacuum extractor, extrusion pressure are high, and product is fine and close, bubble-free bulge, and color stable, can adjust, color it is rich
Rich degree is high, suitable for the production of high wood powder content multicolour wood plastic composite.
The invention provides a kind of thinking and method, it is many to implement method and the approach of the technical scheme, above institute
State only is the preferred embodiment of the present invention, it is noted that for those skilled in the art, is not being departed from
On the premise of the principle of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded as the guarantor of the present invention
Scope is protected, the available prior art of each part being not known in the present embodiment is realized.
Claims (1)
1. a kind of wood plastic composite of the production equipment production with polychrome color effect using multicolour wood plastic composite
Production technology, it is characterised in that：
Production equipment, it includes frame（1）, in the frame（1）Top one end is provided with main motor（2）, the main motor（2）With
Screw rod（3）It is connected, the screw rod（3）Installed in machine barrel（4）It is interior, in the machine barrel（4）It is provided with main spout（5）With secondary feeding
Mouthful（6）, in the main spout（5）With secondary spout（6）Between machine barrel（4）It is provided with vacuum pumping opening（7）, the vacuum
Bleeding point（7）With vacuum extractor（8）It is connected, the main spout（5）With main drawing-in device（9）It is connected, the secondary spout
（6）With secondary drawing-in device（10）It is connected, the screw rod（3）By conical section（11）And cylindrical portion（12）Composition, the cylindrical portion
（12）It is located at conical section（11）Shallow screw channel at；The main spout（5）, secondary spout（6）And vacuum pumping opening（7）All it is located at
Screw rod（3）Conical section（11）On the machine barrel at place；The screw rod（3）Conical section（11）Spiral groove depth be gradually reduced, to and cylindricality
Section（12）Junction is minimum；
Production stage includes,
A, machine barrel and mould are preheated, successively decreased for 150 DEG C from 180 DEG C of charging zone to extrusion zone to barrel zone temperature, mold temperature 140-
150 DEG C, then lasting constant temperature more than 2 hours；
B, the wood plastic composite particle of light colour is added in main drawing-in device, is separately turned on main motor and main feeding dress
Put, by Screw Extrusion, the rotating speed 10-70rpm of main motor screw rod, after selecting a suitable main motor screw speed, it is slow and
The rotating speed of the main drawing-in device screw rod of increase step by step, the rotating speed 10-70rpm of main drawing-in device screw rod so that the electricity of main motor
50%-80% of the stream in Rated motor electric current；
C, wood plastic composite particle moisture content volatilization after screw rod conical section is heated, after electric current is stable, opens vavuum pump, takes away
Moisture；
D, dark colour Masterbatch is added in secondary drawing-in device, wood plastic composite is normally squeezed from extruder by mould
After going out shaping, secondary drawing-in device is opened, the rotating speed of secondary drawing-in device screw rod is 10-70rpm, obtains multicolour wood and plastic composite
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826356.5A CN105398018B (en) | 2015-11-25 | 2015-11-25 | A kind of production equipment and production technology of new multicolour wood plastic composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826356.5A CN105398018B (en) | 2015-11-25 | 2015-11-25 | A kind of production equipment and production technology of new multicolour wood plastic composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105398018A CN105398018A (en) | 2016-03-16 |
| CN105398018B true CN105398018B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510826356.5A Active CN105398018B (en) | 2015-11-25 | 2015-11-25 | A kind of production equipment and production technology of new multicolour wood plastic composite |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108215052A (en) * | 2017-12-30 | 2018-06-29 | 大连銮艺精密模塑制造有限公司 | Prevent the method for liquid crystal polymer resin injection moulding process surface product defect |
| CN110370595B (en) * | 2019-06-25 | 2022-12-30 | 宁波禾隆新材料股份有限公司 | Wood-plastic production manufacturing method, system and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4025274A (en) * | 1975-10-24 | 1977-05-24 | Toyo Soda Manufacturing Co., Ltd. | Apparatus and process for preparing thermoplastic resin composition |
| GB2076728A (en) * | 1980-05-21 | 1981-12-09 | Midland Ross Corp | Extrusion devices and methods of reclaiming scrap plastic material |
| CN205202096U (en) * | 2015-11-25 | 2016-05-04 | 无锡啄木鸟环保建材有限公司 | Novel multicolour wood plastic composite's production facility |
-
2015
- 2015-11-25 CN CN201510826356.5A patent/CN105398018B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4025274A (en) * | 1975-10-24 | 1977-05-24 | Toyo Soda Manufacturing Co., Ltd. | Apparatus and process for preparing thermoplastic resin composition |
| GB2076728A (en) * | 1980-05-21 | 1981-12-09 | Midland Ross Corp | Extrusion devices and methods of reclaiming scrap plastic material |
| CN205202096U (en) * | 2015-11-25 | 2016-05-04 | 无锡啄木鸟环保建材有限公司 | Novel multicolour wood plastic composite's production facility |
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| Publication number | Publication date |
|---|---|
| CN105398018A (en) | 2016-03-16 |
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Effective date of registration: 20231216 Address after: 223700 No. 212 Taihu Road, Siyang County, Suqian City, Jiangsu Province Patentee after: Jiangsu woodpeck New Material Co.,Ltd. Address before: 214201 Gaocheng Town, Environmental Science Park, Yixing City, Wuxi City, Jiangsu Province Patentee before: WUXI WOODPECKER ENVIRONMENTAL PROTECTION BUILDING MATERIALS CO.,LTD. |