CN102729353A - Thermoplastic resin granulation method and device thereof - Google Patents
Thermoplastic resin granulation method and device thereof Download PDFInfo
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- CN102729353A CN102729353A CN2012102030731A CN201210203073A CN102729353A CN 102729353 A CN102729353 A CN 102729353A CN 2012102030731 A CN2012102030731 A CN 2012102030731A CN 201210203073 A CN201210203073 A CN 201210203073A CN 102729353 A CN102729353 A CN 102729353A
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Abstract
The present invention discloses a thermoplastic resin granulation method and a device thereof. The method comprises the following steps: carrying out composite extruding on a thermoplastic resin and an inorganic filler with an extruder to form a composite resin; carrying out bracing water cooling and granulation on the composite resin with a bracing granulation machine to form particles; screening the particles with a screening machine; and separating the particles from the powder with a particle separation device. According to the thermoplastic resin granulation method of the present invention, bracing water cooling, granulation and screening are sequentially performed, and then the particle separation device is adopted to separate the particles from the powder, such that the powder content in the particles is reduced, the powder problem of the downstream injection molding plant during the production process is effectively solved, and the production efficiency and the yield are improved.
Description
Technical field
The present invention relates to chemical technology field, relate in particular to a kind of thermoplastic resin prilling process and equipment.
Background technology
Thermoplastic resin (Thermoplastic); Because it can do solid-state and liquid conversion under temperature conditions changes; So strong, the composite modified advantage such as workable of machinability is arranged, is widely used in the fields such as electronics, automobile, machine-building, daily necessities.
Thermoplastic resin is many in the engineering plastics field to be used with the form of composite of adding glass fibre or inorganic filler; And in order to strengthen intensity, to reduce cost, mostly the production technology of this thermoplastic resin is the compound cheaply tie rod cold cut granulation pattern of extruding.But, in extruding tie rod cold cut granulating working procedure, because the influence of inorganic filler will produce a large amount of powder.And the filling ratio is high more, and the powder of generation is also many more.This powder and finished product mix particles will cause various problems to the injection moulding production in later stage together.For example; Stop up the injection machine charging aperture, injection-molded item is rough, the die venting mouth stops up, goods are filled insufficient or overlap is many, the products machinery performance descends or the like unusually; Cause that injection moulding plant produced efficient is low, qualification rate is low, and then make the quality of goods be difficult to guarantee.
Summary of the invention
Main purpose of the present invention provides a kind of thermoplastic resin prilling process, is intended to reduce the content of powder of particle.
The invention provides a kind of thermoplastic resin prilling process, may further comprise the steps:
Extruder carries out compound extruding with thermoplastic resin and inorganic filler, forms compound resin;
Strand pelletizer with compound resin through the tie rod water-cooled but, pelletizing forms particle;
Screening machine sieves particle;
Particle sorting apparatus separates particle with powder.
Preferably, said particle sorting apparatus is cyclone separator or at least one screening machine.
Preferably, said particle sorting apparatus is the combination of cyclone separator and at least one screening machine.
Preferably, said particle sorting apparatus carries out particle and powder also to comprise before the separation steps:
Surface processing device carries out surface treatment with particle.
Preferably, said particle sorting apparatus carries out particle and powder also to comprise after the separation steps:
Powder recovering device will pass through the Powder Recovery of separation, and add said extruder.
The present invention also provides a kind of thermoplastic resin Granulation Equipments, comprising:
Extruder is used for thermoplastic resin and inorganic filler are carried out compound extruding, and forms compound resin;
Strand pelletizer, be used for compound resin through the tie rod water-cooled but, pelletizing forms particle;
Screening machine is used for particle is sieved;
Particle sorting apparatus is used for particle and powder separation.
Preferably, said particle sorting apparatus is cyclone separator or at least one screening machine.
Preferably, said particle sorting apparatus is the combination of cyclone separator and at least one screening machine.
Preferably, also comprise surface processing device, be used for before said particle sorting apparatus is with particle and powder separation, particle being carried out surface treatment.
Preferably, also comprise powder recovering device, be used for Powder Recovery, and add said extruder through separating.
The present invention through in the thermoplastic resin prilling process through the tie rod water-cooled but, after the pelletizing, screening; Pass through surface processing device, particle sorting apparatus again with particle and powder separation; Thereby the content of powder in the reduction particle; Effectively solve the powder puzzlement that downstream injection moulding factory faces in process of production, enhance productivity and qualification rate.In addition, the powder after will separating through powder recovering device carries out recycling, has practiced thrift cost.
Description of drawings
Fig. 1 is the schematic flow sheet of thermoplastic resin prilling process one embodiment of the present invention;
Fig. 2 is the schematic flow sheet of another embodiment of thermoplastic resin prilling process of the present invention;
Fig. 3 is the schematic flow sheet of the another embodiment of thermoplastic resin prilling process of the present invention;
Fig. 4 be thermoplastic resin Granulation Equipments one embodiment of the present invention structural representation;
Fig. 5 is the structural representation of another embodiment of thermoplastic resin Granulation Equipments of the present invention;
Fig. 6 is the structural representation of the another embodiment of thermoplastic resin Granulation Equipments of the present invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
The specific embodiment
Further specify technical scheme of the present invention below in conjunction with Figure of description and specific embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to Fig. 1, it is the schematic flow sheet of thermoplastic resin prilling process one embodiment of the present invention.Thermoplastic resin prilling process of the present invention may further comprise the steps:
Step S01, extruder carry out compound extruding with thermoplastic resin and inorganic filler, form compound resin;
Thermoplastic resin and inorganic filler are proportionally carried out proportioning, and it is carried out compound extruding through extruder, form compound resin.In the present embodiment, the proportioning ratio of inorganic filler and thermoplastic resin is (pressing mass ratio): thermoplastic resin 20%-40%, inorganic filler 5%-70%, glass fibre 0%-40%, particular modification additive 0%-10%.This extruder can be single screw extrusion machine, double screw extruder or multi-screw extruder.The extruder that adopts in the embodiment of the invention is the cocurrent and parallel double screw extruder that Toshiba produces.The feeding machine of this extruder is the weight-loss type compute type.Thermoplastic resin and inorganic filler, special additive can use independent feeding or premix feeding afterwards; The independent feeding of glass fibre, extrusion temperature are 230 ℃-360 ℃; Screw speed is 200 revolutions per seconds-400 revolutions per seconds, and output is 200 kilograms/hour-400 kilograms/hour, compound extruding.Certainly, also can adopt other extruder, not do qualification at this.In embodiments of the present invention, this thermoplastic resin can comprise engineering plastics PPS, LCP, PBT, PA or the like.
Step S02, strand pelletizer with compound resin through the tie rod water-cooled but, pelletizing forms particle;
After compound resin is extruded by extruder, and through the tie rod water-cooled but, be sent to pelleter again, its size according to required particle carried out pelletizing, and form particle through pelleter.For example, diameter is 2-3mm, and length is the particle of 2.5-3.5mm.
Step S03, screening machine sieve particle;
The screening machine mainly combination of the perforate sieve plate through different apertures is realized the sorting to the target material; When using; Rely on vibrating motor that energy is provided; Make material on sieve plate, disperse, vibrate and move along predetermined direction, material can reach the purpose of sorting through the sieve plate in different apertures in the process that moves.Therefore, the screening of this screening machine is mainly used in and isolates special-shaped particle, simultaneously also can be with the part powder separation of particle, and the content of powder in the grain products is 8000-15000ppm at this moment.
Step S04, particle sorting apparatus separate particle with powder.
In one embodiment of the present invention, above-mentioned particle sorting apparatus can be cyclone separator.This cyclone separator is realized the separation of material different component through the weight difference of material in the process of wind-force convey materials.With being mixed with particles of powder entering cyclone separator under the drive of wind-force because powder weight is little, so its under the drive of wind-force, will discharge from exhaust outlet, owing to particle weight is big, so its relation because of gravity is stayed in the cyclone separator.Therefore, in order to take powder out of outlet better, and particle is stayed in the cyclone separator, and the size of wind-force can be according to parameter such as the structure of specification, density and the cyclone separator of particle and concrete the setting just do not done qualification at this in this cyclone separator.Through the separation of cyclone separator, can reduce the content of powder of particle, this moment, the content of powder of product was 6000-13000ppm.
In another embodiment of the present invention, above-mentioned particle sorting apparatus also can be at least one screening machine.The sized granules rank depends on the size of perforate on the sieve plate in this screening machine, if the size of perforate is less than the size of particle on the sieve plate, then this particle can not drop from the hole, and stays on the sieve plate.For example, be that 2-3mm, length are the particle of 2.5-3.5mm for diameter, the aperture on this sieve plate is then less than the diameter of particle and greater than the diameter of powder, for example the aperture on the sieve plate is below the 2mm, more than the 1.5mm.And the vibration of this sieve plate also can be so that the powder on the particle breaks away from from particle, and from the hole, drops, and therefore, utilizes this method, can reduce the content of powder of particle.Screening machine can also be provided with the multilayer screening, and for example the aperture of ground floor sieve plate is 5-6mm, and the aperture of the second layer is 1.5-2mm or the like, and amplitude is 1.5-2.5mm.So through the multilayer screening of screening machine, not only can isolate special-shaped particle, but also further reduce the content of powder of particle, this moment, the content of powder of product was 3000-6000ppm.It is understandable that this screening machine can be identical with the parameter of the screening machine of step S03; Also can be different, for example carry out corresponding setting according to the size of particle.And this particle sorting apparatus can be the range upon range of setting of a plurality of screening machines, thereby can carry out multiple screening to particle, has further reduced the content of powder of particle.
In another embodiment of the present invention, above-mentioned particle sorting apparatus can be the combination of cyclone separator and at least one screening machine.Particle carries out the powder separation first time through cyclone separator earlier, passes through the powder separation second time of at least one screening machine again, thereby can further reduce the content of powder of particle.After being used through cyclone separator and screening machine, the content of powder of its particle is 2000ppm-5000ppm.
The embodiment of the invention through in the thermoplastic resin prilling process through the tie rod water-cooled but, after the pelletizing, screening; Pass through particle sorting apparatus again with particle and powder separation; Thereby the content of powder in the reduction particle; Effectively solve the powder puzzlement that downstream injection moulding factory faces in process of production, enhance productivity and qualification rate.
With reference to Fig. 2, it is the schematic flow sheet of another embodiment of thermoplastic resin prilling process of the present invention.Be with the difference of said method embodiment: before the step S04 of the foregoing description, also comprise:
Step S05, surface processing device carry out surface treatment with particle.
Above-mentioned surface processing device is through in the process that particle is moved in surface processing device; Friction between the particle, between particle and the surface processing device inwall is carried out polishing to the surface of particle, thereby makes the surface of the particle after handling can prevent that particle from producing once more that powder comes off or the particle possibility of bonding powder once more.In the present embodiment, this surface processing device can be blending tank, and it is the pipeline configuration of a L shaped passage, and particle gets into tangential direction from the lower end of this blending tank, and after in blending tank, rotating under the drive of high velocity air, discharges from outlet.Under the certain situation of the conduit volume of blending tank, air velocity is big more, the better effects if of the polishing on surface.Air-flow is used to the energy that particle provides motion, and its speed can be provided with according to the concrete condition of particle, and the air velocity of the every conveying that can carry out particle is all within the protection domain of this patent.It is understandable that above-mentioned surface processing device also can carry out other devices of polishing for other to the surface of particle.
The embodiment of the invention is carried out powder separation through particle sorting apparatus to it again through after earlier grain products being carried out the surface finish processing, greatly reduces the content of powder of particle.Wherein, if when particle sorting apparatus is at least one screening machine, the combination of itself and surface processing device is 1000-2000ppm with the content of powder that makes particle; If particle sorting apparatus is when being cyclone separator, the combination of itself and surface processing device is 7000-13000ppm with the content of powder that makes particle; If particle sorting apparatus is when being the combination of cyclone separator and at least one screening machine, the combination of itself and surface processing device is 500-800ppm with the content of powder that makes particle.
With reference to Fig. 3, it is the schematic flow sheet of the another embodiment of thermoplastic resin process for granulating of the present invention.On the basis of the foregoing description, present embodiment thermoplastic resin process for granulating also comprises after above-mentioned steps S04 or step S05:
The Powder Recovery that step S06, powder recovering device will pass through separation adds extruder.
After above-mentioned steps S04 and the step S05, particle forms with powder and separates shape, and particle can be used as finished product, offers downstream injection moulding factory and does the raw material use, and powder then can be recycled to extruder and reuse.
Powder after the embodiment of the invention also will be separated through powder recovering device carries out recycling, thereby has practiced thrift cost.
With reference to Fig. 4, it is the structural representation of thermoplastic resin Granulation Equipments one embodiment of the present invention.This thermoplastic resin Granulation Equipments comprises extruder 100, strand pelletizer 200, screening machine 300 and particle sorting apparatus 400, wherein:
Extruder 100 is used for thermoplastic resin and inorganic filler are carried out compound extruding, and forms compound resin;
At first thermoplastic resin and inorganic filler are proportionally carried out proportioning, and it is carried out compound extruding through extruder 100, form compound resin.In the present embodiment, the proportioning ratio of inorganic filler and thermoplastic resin is (pressing mass ratio): thermoplastic resin 20%-40%, inorganic filler 5%-70%, glass fibre 0%-40%, particular modification additive 0%-10%.This extruder can be single screw extrusion machine, double screw extruder or multi-screw extruder.The cocurrent and parallel double screw extruder that the extruder 100 that adopts in the embodiment of the invention is produced for Toshiba.The feeding machine of this extruder is the weight-loss type compute type.Thermoplastic resin and inorganic filler, special additive can use independent feeding or premix feeding afterwards; The independent feeding of glass fibre, extrusion temperature are 230 ℃-360 ℃; Screw speed is 200RPM-400RPM, and output is 200KG/H-400KG/H, compound extruding.
After compound resin is extruded by extruder 100, and pass through strand pelletizer 200 it is carried out the tie rod water-cooled but, carry out pelletizing according to the size of required particle again, and form particle.This particle is mainly isolated special-shaped particle through the screening of screening machine 300 then, simultaneously also can be with the part powder separation on the particle, and the content of powder in the grain products is 8000-15000ppm at this moment.At last, through particle sorting apparatus 400 it is carried out powder separation once more again.
In one embodiment of the present invention, above-mentioned particle sorting apparatus 400 can be cyclone separator.This cyclone separator is realized the separation of material different component through the weight difference of material in the process of wind-force convey materials.With being mixed with particles of powder entering cyclone separator under the drive of wind-force because powder weight is little, so its under the drive of wind-force, will discharge from exhaust outlet, owing to particle weight is big, so its relation because of gravity is stayed in the cyclone separator.Therefore, in order to take powder out of outlet better, and particle is stayed in the cyclone separator, and the size of wind-force can be according to parameter such as the structure of specification, density and the cyclone separator of particle and concrete the setting just do not done qualification at this in this cyclone separator.Through the separation of cyclone separator, can reduce the content of powder of particle, this moment, the content of powder of product was 6000-13000ppm.
In another embodiment of the present invention, above-mentioned particle sorting apparatus 400 can be at least one screening machine.The sized granules rank depends on the size of perforate on the sieve plate in this screening machine, if the size of perforate is less than the size of particle on the sieve plate, then this particle can not drop from the hole, and stays on the sieve plate.For example, be that 2-3mm, length are the particle of 2.5-3.5mm for diameter, the aperture on this sieve plate is then less than the diameter of particle and greater than the diameter of powder, for example the aperture on the sieve plate is below the 2mm, more than the 1.5mm.And the vibration of this sieve plate also can be so that the powder on the particle breaks away from from particle, and from the hole, drops, and therefore, utilizes this method, can reduce the content of powder of particle.Screening machine can also be provided with the multilayer screening, and for example the aperture of ground floor sieve plate is 5-6mm, and the aperture of the second layer is 1.5-2mm or the like, and amplitude is 1.5-2.5mm.So through the multilayer screening of screening machine, not only can isolate special-shaped particle, but also further reduce the content of powder of particle, this moment, the content of powder of product was 3000-6000ppm.It is understandable that this screening machine can be identical with the parameter of screening machine 300; Also can be different, for example carry out corresponding setting according to the size of particle.And this particle sorting apparatus can be the range upon range of setting of a plurality of screening machines, thereby can carry out multiple screening to particle, has further reduced the content of powder of particle.
In another embodiment of the present invention, above-mentioned particle sorting apparatus 400 can be the combination of cyclone separator and at least one screening machine.Particle carries out the powder separation first time through cyclone separator earlier, passes through the powder separation second time of at least one screening machine again, thereby can further reduce the content of powder of particle.After being used through cyclone separator and screening machine, the content of powder of its particle is 2000-5000ppm.
The embodiment of the invention through in the thermoplastic resin prilling process through the tie rod water-cooled but, after the pelletizing, screening; Pass through particle sorting apparatus 400 again with particle and powder separation; Thereby the content of powder in the reduction particle; Effectively solve the powder puzzlement that downstream injection moulding factory faces in process of production, enhance productivity and qualification rate.
With reference to Fig. 5, it is the structural representation of another embodiment of thermoplastic resin Granulation Equipments of the present invention.Be with the difference of the said equipment embodiment: the thermoplastic resin Granulation Equipments of this embodiment also comprises: surface processing device 500 is used for 400 pairs of particles of said particle sorting apparatus are carried out before the powder separation particle being carried out surface treatment.Particularly, grain products will pass through the surface finish of surface processing device 500 and handle before 400 pairs of particles of particle sorting apparatus carry out powder separation.This surface processing device 500 is through in the process that particle is moved in surface processing device 500; Friction between the particle, between particle and surface processing device 500 inwalls is carried out polishing to the surface of particle, thereby makes the surface of the particle after handling can prevent that particle from producing once more that powder comes off or the particle possibility of bonding powder once more.In the present embodiment, this surface processing device 500 can be blending tank, and it is the pipeline configuration of a L shaped passage, and particle gets into tangential direction from the lower end of this blending tank, and after in blending tank, rotating under the drive of high velocity air, discharges from outlet.Under the certain situation of the conduit volume of blending tank, air velocity is big more, the better effects if of the polishing on surface.Air-flow is used to the energy that particle provides motion, and its speed can be provided with according to the concrete condition of particle, and the air velocity of the every conveying that can carry out particle is all within the protection domain of this patent.It is understandable that above-mentioned surface processing device 500 also can carry out other devices of polishing for other to the surface of particle.
The embodiment of the invention is carried out the surface finish processing to grain products earlier through surface processing device 500, through particle sorting apparatus 400 it is carried out powder separation again.Wherein, if when particle sorting apparatus is at least one screening machine, the combination of itself and surface processing device is 1000-2000ppm with the content of powder that makes particle; If particle sorting apparatus is when being cyclone separator, the combination of itself and surface processing device is 7000-13000ppm with the content of powder that makes particle; If particle sorting apparatus is when being the combination of cyclone separator and at least one screening machine, the combination of itself and surface processing device is 500-800ppm with the content of powder that makes particle.
With reference to Fig. 6, it is the structural representation of the another embodiment of thermoplastic resin Granulation Equipments of the present invention.On the basis of said system embodiment, present embodiment thermoplastic resin Granulation Equipments also comprises:
Powder recovering device 600 is used for the Powder Recovery through separating is added extruder 100.
At particle sorting apparatus 400 with particle with after powder separates, particle can be used as finished product, offers downstream injection moulding factory and does raw material and use, powder then comes back to extruder through powder recovering device 600 and reuses.Powder after the embodiment of the invention also will be separated through powder recovering device 600 carries out recycling, thereby has practiced thrift cost.
The above is merely the preferred embodiments of the present invention; Be not so limit its claim; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. a thermoplastic resin prilling process is characterized in that, may further comprise the steps:
Extruder carries out compound extruding with thermoplastic resin and inorganic filler, forms compound resin;
Strand pelletizer with compound resin through the tie rod water-cooled but, pelletizing forms particle;
Screening machine sieves particle;
Particle sorting apparatus separates particle with powder.
2. thermoplastic resin prilling process according to claim 1 is characterized in that, said particle sorting apparatus is cyclone separator or at least one screening machine.
3. thermoplastic resin prilling process according to claim 1 is characterized in that, said particle sorting apparatus is the combination of cyclone separator and at least one screening machine.
4. according to claim 2 or 3 described thermoplastic resin prilling process, it is characterized in that said particle sorting apparatus carries out particle and powder also to comprise before the separation steps:
Surface processing device carries out surface treatment with particle.
5. according to claim 1 or 2 or 3 described thermoplastic resin prilling process, it is characterized in that said particle sorting apparatus carries out particle and powder also to comprise after the separation steps:
Powder recovering device will pass through the Powder Recovery of separation, and add said extruder.
6. a thermoplastic resin Granulation Equipments is characterized in that, comprising:
Extruder is used for thermoplastic resin and inorganic filler are carried out compound extruding, and forms compound resin;
Strand pelletizer, be used for compound resin through the tie rod water-cooled but, pelletizing forms particle;
Screening machine is used for particle is sieved;
Particle sorting apparatus is used for particle and powder separation.
7. thermoplastic resin Granulation Equipments according to claim 6 is characterized in that, said particle sorting apparatus is cyclone separator or at least one screening machine.
8. thermoplastic resin Granulation Equipments according to claim 6 is characterized in that, said particle sorting apparatus is the combination of cyclone separator and at least one screening machine.
9. according to claim 7 or 8 described thermoplastic resin Granulation Equipments, it is characterized in that, also comprise surface processing device, be used for before said particle sorting apparatus is with particle and powder separation, particle being carried out surface treatment.
10. according to claim 6 or 7 or 8 described thermoplastic resin Granulation Equipments, it is characterized in that, also comprise powder recovering device, be used for Powder Recovery, and add said extruder through separating.
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| CN201210203073.1A CN102729353B (en) | 2012-06-19 | 2012-06-19 | Thermoplastic resin granulation method and device thereof |
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| CN201210203073.1A CN102729353B (en) | 2012-06-19 | 2012-06-19 | Thermoplastic resin granulation method and device thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105643830A (en) * | 2016-03-23 | 2016-06-08 | 广西信和新合成材料有限公司 | Hot pelletizing process for phenolic moulding plastics |
| CN106236396A (en) * | 2016-08-19 | 2016-12-21 | 厦门延江新材料股份有限公司 | A kind of water-absorbing film and manufacture method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4491553A (en) * | 1979-07-17 | 1985-01-01 | Lion Corporation | Method for producing filler-loaded thermoplastic resin composite |
| CN101885914A (en) * | 2010-07-13 | 2010-11-17 | 东莞市意普万工程塑料有限公司 | Composite material special for automobile engine oil pan and preparation method thereof |
| CN101955612A (en) * | 2010-06-22 | 2011-01-26 | 长江水利委员会长江科学院 | Composite plastic model sand for sediment solid model experiment and preparation method thereof |
| CN102294764A (en) * | 2011-08-24 | 2011-12-28 | 昆山科信橡塑机械有限公司 | Two-stage banburying production unit for low-smoke and halogen-free cable materials |
-
2012
- 2012-06-19 CN CN201210203073.1A patent/CN102729353B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4491553A (en) * | 1979-07-17 | 1985-01-01 | Lion Corporation | Method for producing filler-loaded thermoplastic resin composite |
| CN101955612A (en) * | 2010-06-22 | 2011-01-26 | 长江水利委员会长江科学院 | Composite plastic model sand for sediment solid model experiment and preparation method thereof |
| CN101885914A (en) * | 2010-07-13 | 2010-11-17 | 东莞市意普万工程塑料有限公司 | Composite material special for automobile engine oil pan and preparation method thereof |
| CN102294764A (en) * | 2011-08-24 | 2011-12-28 | 昆山科信橡塑机械有限公司 | Two-stage banburying production unit for low-smoke and halogen-free cable materials |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105643830A (en) * | 2016-03-23 | 2016-06-08 | 广西信和新合成材料有限公司 | Hot pelletizing process for phenolic moulding plastics |
| CN106236396A (en) * | 2016-08-19 | 2016-12-21 | 厦门延江新材料股份有限公司 | A kind of water-absorbing film and manufacture method thereof |
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| CN102729353B (en) | 2015-04-15 |
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