CN105398018A - Production equipment and production process for novel multicolour wood-plastic composite material - Google Patents
Production equipment and production process for novel multicolour wood-plastic composite material Download PDFInfo
- Publication number
- CN105398018A CN105398018A CN201510826356.5A CN201510826356A CN105398018A CN 105398018 A CN105398018 A CN 105398018A CN 201510826356 A CN201510826356 A CN 201510826356A CN 105398018 A CN105398018 A CN 105398018A
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- Prior art keywords
- plastic composite
- screw rod
- wood plastic
- multicolour
- spout
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920001587 Wood-plastic composite Polymers 0.000 title claims abstract description 49
- 239000011155 wood-plastic composite Substances 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 239000000463 material Substances 0.000 title abstract 4
- 238000001125 extrusion Methods 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 16
- 239000004595 color masterbatch Substances 0.000 claims abstract description 6
- 238000005086 pumping Methods 0.000 claims description 15
- 238000005516 engineering process Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 5
- 230000006641 stabilisation Effects 0.000 claims description 5
- 238000011105 stabilization Methods 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 description 9
- 239000004033 plastic Substances 0.000 description 9
- 239000002023 wood Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect 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
- 239000002994 raw material Substances 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 invention relates to production equipment and a production process for a novel multicolour wood-plastic composite material. The production equipment comprises a rack, a main motor, a screw, a machine barrel, a vacuumizing device, a main feeding device and an auxiliary feeding device, wherein the screw is composed of a conical section and a cylindrical section, and the cylindrical section is arranged at a shallow spiral groove of the conical section. The production process comprises the steps of preheating the machine barrel and a die, adding light-colour wood-plastic composite material particles, regulating a speed, starting a vacuum pump, adding dark-colour colour master batches, and forming. The equipment disclosed by the invention is high in extrusion pressure, and is a conical single-screw extruder provided with the main feeding device, the auxiliary feeding device and the vacuumizing device, which is reasonable in extrusion speed, free from bubbles and bulges, used for producing a high-wood-flour-content multicolour wood-plastic composite material, and accurate and efficient in process.
Description
Technical field
The present invention relates to a kind of production equipment and production technology of wood plastic composite, be specifically related to a kind of production equipment and production technology of colorful wood plastic composite.
Background technology
Traditional wood plastic composite entire body solid colour, achromatization, the exploitation of multicolour wood plastic composite becomes one of study hotspot.Traditional single screw extrusion machine is due to without vacuum extractor, and dereliction drawing-in device, easily produces bubble, and the problems such as bulge extrude production by low velocity, and extrusion pressure is little, inefficiency, eliminate by industry.Existing multicolour wood plastic composite mainly adopts conical double screw extruder to produce, and in the wooden plastic particles of light color, adds dark look mother to obtain multicolour wood plastic composite.The primary raw material of wood plastic composite is recycled plastic, and composition is unstable, particularly multi-componently mixes recycled plastic, and performance difference is larger.Conical double screw extruder plasticizing better, look is female easily mixes the compatible conjunction of wooden plastic particles prepared by recycled plastic or partially compatible closes with multi-component, cause multicolour wood plastic composite background color color burn, color lines are unstable, poor reproducibility, particularly easily occur color mixture spot, product rejection rate is very high.
Summary of the invention
Goal of the invention: the object of the invention is to overcome deficiency of the prior art, there is provided a kind of extrusion pressure high, with the tapered single screw extruder of main drawing-in device, secondary drawing-in device, vacuum extractor, extruded velocity is reasonable, bubble-free bulge, for the production of equipment and the accurate production technology efficiently thereof of high wood powder content multicolour wood plastic composite.
Technical scheme: in order to solve the problems of the technologies described above, the production equipment of a kind of novel multicolour wood plastic composite of the present invention, it comprises frame, above described frame, one end is provided with mair motor, described mair motor is connected with screw rod, described screw rod is arranged in machine barrel, described machine barrel is provided with main spout and secondary spout, machine barrel between described main spout and secondary spout is provided with vacuum pumping opening, described vacuum pumping opening is connected with vacuum extractor, described main spout is connected with main drawing-in device, described secondary spout is connected with secondary drawing-in device, described screw rod is made up of conical section and cylindrical portion, described cylindrical portion is located at the shallow screw channel place of conical section.
Described main spout, secondary spout and vacuum pumping opening are all located on the machine barrel at screw rod conical section place.
The spiral groove depth of described screw rod conical section reduces gradually, to minimum with cylindrical portion junction.
Described machine barrel Shang Youqige heating-up temperature district.
All with respective forwardtransfer signal worm on described main drawing-in device and secondary drawing-in device.
Utilize this device fabrication to have the production technology of the wood plastic composite of multicolour effect, it comprises the following steps,
A, by machine barrel and mould and die preheating, to barrel zone temperature from charging zone, 180 DEG C are successively decreased to extruding 150 DEG C, district, mold temperature 140-150 DEG C, then continue constant temperature more than 2 hours;
B, the wood plastic composite particle of light colour is joined in main drawing-in device, open mair motor and main drawing-in device respectively, by Screw Extrusion, the rotating speed 10-70rpm of mair motor screw rod, after selecting a suitable mair motor screw speed, the rotating speed of the main drawing-in device screw rod of increase slowly and step by step, the rotating speed 10-70rpm of main drawing-in device screw rod, makes the electric current of mair motor be in the 50%-80% of Rated motor electric current;
C, wood plastic composite particle be moisture content volatilization after screw rod conical section is heated, and after current stabilization, opens vavuum pump, takes moisture away;
D, join in secondary drawing-in device by dark colour Masterbatch, wood plastic composite is by after the normal extrusion molding of mould from extruder, and open secondary drawing-in device, the rotating speed of secondary drawing-in device screw rod is 10-70rpm, obtains multicolour wood plastic composite.
Beneficial effect: the present invention compared with prior art, its remarkable advantage is: the first, and the present invention adopts Single screw extrusion, and plasticizing mixed weakens, wood plastic particles is not easy to merge mutually with Masterbatch, efficiently solves the problem that multicomponent recycled plastic produces colorful wood plastic composite color instability; Second, the present invention devises the singe screw of one group of taper, screw rod is made up of conical section and cylindrical portion, the screw channel of conical section screw rod shoals gradually, and is obviously deeper than cylindrical portion, and wooden plastic particles is not filled up completely in conical section screw rod, all the time " hungry feeding " state is in, and be heated in this section, moisture evaporation, takes away with vacuum extractor; 3rd, the present invention devises main drawing-in device, and make single screw extrusion machine of the present invention can regulate engine speed and main feeding rotating speed respectively, namely extrusion pressure is adjustable, when solving Single screw extrusion, the uncontrollable problem of color shape, has enriched the texture of color; 4th, the present invention devises the screw-rod structure that conical section combines with cylindrical portion, adds the extrusion pressure of singe screw, is applicable to the production of high wood powder content multicolour wood plastic composite; 5th, the present invention devises secondary drawing-in device, change traditional direct Masterbatch is first mixed with wooden plastic particles after the mode extruded again, simplify production stage, make the addition of look mother regulate at any time simultaneously, be conducive to adjusting at any time the lines of color and enrich degree.
Accompanying drawing explanation
Fig. 1 is the structural representation of production equipment described in the present invention;
Fig. 2 is the structural representation of screw rod described in the present invention and machine barrel.
Detailed description of the invention
Below in conjunction with drawings and Examples, invention is further described.
Embodiment 1:
As depicted in figs. 1 and 2, the production equipment of a kind of novel multicolour wood plastic composite of the present invention, it comprises frame 1, above described frame 1, one end is provided with mair motor 2, described mair motor 2 is connected with screw rod 3, described screw rod 3 is arranged in machine barrel 4, described machine barrel 4 is provided with main spout 5 and secondary spout 6, machine barrel 4 between described main spout 5 and secondary spout 6 is provided with vacuum pumping opening 7, described vacuum pumping opening 7 is connected with vacuum extractor 8, described main spout 5 is connected with main drawing-in device 9, described secondary spout 6 is connected with secondary drawing-in device 10, described screw rod 3 is made up of conical section 11 and cylindrical portion 12, described cylindrical portion 12 is located at the shallow screw channel place of conical section 11, described main spout 5, secondary spout 6 and vacuum pumping opening 7 are all located on the machine barrel at screw rod 3 conical section 11 place, the spiral groove depth of the conical section 11 of described screw rod 3 reduces gradually, and to cylindrical portion 12, place is minimum.
Utilize this device fabrication to have the production technology of the wood plastic composite of multicolour effect, it comprises the following steps,
A, by machine barrel and mould and die preheating, be 180 DEG C/180 DEG C/160 DEG C/160 DEG C/155 DEG C/150 DEG C/150 DEG C to barrel zone temperature from charging zone to extruding district, mold temperature 140 DEG C, then continues constant temperature 2 hours;
B, the wood plastic composite particle of light colour is joined in main drawing-in device, open mair motor and main drawing-in device respectively, by Screw Extrusion, select mair motor screw speed 15rpm, then the rotating speed of the main drawing-in device screw rod of increase slowly and step by step, makes the electric current of mair motor be in 50% of Rated motor electric current;
C, wood plastic composite particle be moisture content volatilization after screw rod conical section is heated, and after current stabilization, opens vavuum pump, takes moisture away;
D, join in secondary drawing-in device by dark colour Masterbatch, wood plastic composite is by after the normal extrusion molding of mould from extruder, and open secondary drawing-in device, the rotating speed of secondary drawing-in device screw rod is 10rpm, obtains multicolour wood plastic composite.
Embodiment 2:
As depicted in figs. 1 and 2, the production equipment of a kind of novel multicolour wood plastic composite of the present invention, it comprises frame 1, above described frame 1, one end is provided with mair motor 2, described mair motor 2 is connected with screw rod 3, described screw rod 3 is arranged in machine barrel 4, described machine barrel 4 is provided with main spout 5 and secondary spout 6, machine barrel 4 between described main spout 5 and secondary spout 6 is provided with vacuum pumping opening 7, described vacuum pumping opening 7 is connected with vacuum extractor 8, described main spout 5 is connected with main drawing-in device 9, described secondary spout 6 is connected with secondary drawing-in device 10, described screw rod 3 is made up of conical section 11 and cylindrical portion 12, described cylindrical portion 12 is located at the shallow screw channel place of conical section 11, described main spout 5, secondary spout 6 and vacuum pumping opening 7 are all located on the machine barrel at screw rod 3 conical section 11 place, the spiral groove depth of the conical section 11 of described screw rod 3 reduces gradually, and to cylindrical portion 12, place is minimum.
Utilize this device fabrication to have the production technology of the wood plastic composite of multicolour effect, it comprises the following steps,
A, by machine barrel and mould and die preheating, be 180 DEG C/180 DEG C/160 DEG C/160 DEG C/155 DEG C/150 DEG C/150 DEG C to barrel zone temperature from charging zone to extruding district, mold temperature 145 DEG C, then continues constant temperature 2 hours;
B, the wood plastic composite particle of light colour is joined in main drawing-in device, open mair motor and main drawing-in device respectively, by Screw Extrusion, select mair motor screw speed 30rpm, then the rotating speed of the main drawing-in device screw rod of increase slowly and step by step, makes the electric current of mair motor be in 60% of Rated motor electric current;
C, wood plastic composite particle be moisture content volatilization after screw rod conical section is heated, and after current stabilization, opens vavuum pump, takes moisture away;
D, join in secondary drawing-in device by dark colour Masterbatch, wood plastic composite is by after the normal extrusion molding of mould from extruder, and open secondary drawing-in device, the rotating speed of secondary drawing-in device screw rod is 20rpm, obtains multicolour wood plastic composite.
Embodiment 3:
As depicted in figs. 1 and 2, the production equipment of a kind of novel multicolour wood plastic composite of the present invention, it comprises frame 1, above described frame 1, one end is provided with mair motor 2, described mair motor 2 is connected with screw rod 3, described screw rod 3 is arranged in machine barrel 4, described machine barrel 4 is provided with main spout 5 and secondary spout 6, machine barrel 4 between described main spout 5 and secondary spout 6 is provided with vacuum pumping opening 7, described vacuum pumping opening 7 is connected with vacuum extractor 8, described main spout 5 is connected with main drawing-in device 9, described secondary spout 6 is connected with secondary drawing-in device 10, described screw rod 3 is made up of conical section 11 and cylindrical portion 12, described cylindrical portion 12 is located at the shallow screw channel place of conical section 11, described main spout 5, secondary spout 6 and vacuum pumping opening 7 are all located on the machine barrel at screw rod 3 conical section 11 place, the spiral groove depth of the conical section 11 of described screw rod 3 reduces gradually, and to cylindrical portion 12, place is minimum.
Utilize this device fabrication to have the production technology of the wood plastic composite of multicolour effect, it comprises the following steps,
A, by machine barrel and mould and die preheating, be 180 DEG C/180 DEG C/160 DEG C/160 DEG C/155 DEG C/150 DEG C/150 DEG C to barrel zone temperature from charging zone to extruding district, mold temperature 150 DEG C, then continues constant temperature 2 hours;
B, the wood plastic composite particle of light colour is joined in main drawing-in device, open mair motor and main drawing-in device respectively, by Screw Extrusion, select mair motor screw speed 50rpm, then the rotating speed of the main drawing-in device screw rod of increase slowly and step by step, makes the electric current of mair motor be in 80% of Rated motor electric current;
C, wood plastic composite particle be moisture content volatilization after screw rod conical section is heated, and after current stabilization, opens vavuum pump, takes moisture away;
D, join in secondary drawing-in device by dark colour Masterbatch, wood plastic composite is by after the normal extrusion molding of mould from extruder, and open secondary drawing-in device, the rotating speed of secondary drawing-in device screw rod is 50rpm, obtains multicolour wood plastic composite.
The present invention adopts Single screw extrusion, screw rod is made up of conical section and cylindrical portion, add main drawing-in device, secondary drawing-in device and vacuum extractor, extrusion pressure is high, and product is fine and close, bubble-free bulge, and color stable, adjustable, color to enrich degree high, be applicable to the production of high wood powder content multicolour wood plastic composite.
The invention provides a kind of thinking and method; the method and access of this technical scheme of specific implementation is a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art, under the premise without departing from the principles of the invention, some improvements and modifications can also be made; these improvements and modifications also should be considered as protection scope of the present invention, and all available prior art of each part not clear and definite in the present embodiment is realized.
Claims (4)
1. the production equipment of a novel multicolour wood plastic composite, it is characterized in that: it comprises frame (1), mair motor (2) is provided with in one end, described frame (1) top, described mair motor (2) is connected with screw rod (3), described screw rod (3) is arranged in machine barrel (4), described machine barrel (4) is provided with main spout (5) and secondary spout (6), machine barrel (4) between described main spout (5) and secondary spout (6) is provided with vacuum pumping opening (7), described vacuum pumping opening (7) is connected with vacuum extractor (8), described main spout (5) is connected with main drawing-in device (9), described secondary spout (6) is connected with secondary drawing-in device (10), described screw rod (3) is made up of conical section (11) and cylindrical portion (12), described cylindrical portion (12) is located at the shallow screw channel place of conical section (11).
2. the production equipment of novel multicolour wood plastic composite according to claim 1, is characterized in that: described main spout (5), secondary spout (6) and vacuum pumping opening (7) are all located on the machine barrel at screw rod (3) conical section (11) place.
3. the production equipment of novel multicolour wood plastic composite according to claim 1, is characterized in that: the spiral groove depth of described screw rod (3) conical section (11) reduces gradually, to minimum with cylindrical portion (12) junction.
4. utilize arbitrary described device fabrication in the claims 1-3 to have a production technology for the wood plastic composite of multicolour effect, it is characterized in that: it comprises the following steps,
A, by machine barrel and mould and die preheating, to barrel zone temperature from charging zone, 180 DEG C are successively decreased to extruding 150 DEG C, district, mold temperature 140-150 DEG C, then continue constant temperature more than 2 hours;
B, the wood plastic composite particle of light colour is joined in main drawing-in device, open mair motor and main drawing-in device respectively, by Screw Extrusion, the rotating speed 10-70rpm of mair motor screw rod, after selecting a suitable mair motor screw speed, the rotating speed of the main drawing-in device screw rod of increase slowly and step by step, the rotating speed 10-70rpm of main drawing-in device screw rod, makes the electric current of mair motor be in the 50%-80% of Rated motor electric current;
C, wood plastic composite particle be moisture content volatilization after screw rod conical section is heated, and after current stabilization, opens vavuum pump, takes moisture away;
D, join in secondary drawing-in device by dark colour Masterbatch, wood plastic composite is by after the normal extrusion molding of mould from extruder, and open secondary drawing-in device, the rotating speed of secondary drawing-in device screw rod is 10-70rpm, obtains multicolour wood plastic composite.
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 true CN105398018A (en) | 2016-03-16 |
| CN105398018B CN105398018B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110370595A (en) * | 2019-06-25 | 2019-10-25 | 宁波禾隆新材料股份有限公司 | A kind of wood moulding method for manufacturing, system, 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110370595A (en) * | 2019-06-25 | 2019-10-25 | 宁波禾隆新材料股份有限公司 | A kind of wood moulding method for manufacturing, system, storage medium |
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| Publication number | Publication date |
|---|---|
| CN105398018B (en) | 2017-12-01 |
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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. |
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