WO2012136142A1 - Dispositif d'alimentation utilisant la chaleur résiduelle d'une entrée/sortie de matériau d'une extrudeuse à vis de second ordre pour le préchauffage d'une charge de fibres - Google Patents

Dispositif d'alimentation utilisant la chaleur résiduelle d'une entrée/sortie de matériau d'une extrudeuse à vis de second ordre pour le préchauffage d'une charge de fibres Download PDF

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Publication number
WO2012136142A1
WO2012136142A1 PCT/CN2012/073559 CN2012073559W WO2012136142A1 WO 2012136142 A1 WO2012136142 A1 WO 2012136142A1 CN 2012073559 W CN2012073559 W CN 2012073559W WO 2012136142 A1 WO2012136142 A1 WO 2012136142A1
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WO
WIPO (PCT)
Prior art keywords
screw extruder
fiber
preheating
stage screw
hot air
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.)
Ceased
Application number
PCT/CN2012/073559
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English (en)
Chinese (zh)
Inventor
李良光
蒋鼎丰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FUJIAN HAIYUAN AUTOMATIC EQUIPMENTS Co Ltd
Original Assignee
FUJIAN HAIYUAN AUTOMATIC EQUIPMENTS Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FUJIAN HAIYUAN AUTOMATIC EQUIPMENTS Co Ltd filed Critical FUJIAN HAIYUAN AUTOMATIC EQUIPMENTS Co Ltd
Publication of WO2012136142A1 publication Critical patent/WO2012136142A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B29B7/90—Fillers or reinforcements, e.g. fibres
    • B29B7/905—Fillers or reinforcements, e.g. fibres with means for pretreatment of the charges or fibres
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/275—Recovery or reuse of energy or materials
    • B29C48/276—Recovery or reuse of energy or materials of energy
    • 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
    • B29C48/287—Raw material pre-treatment while 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B29C48/2886—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of fillers or of fibrous materials, e.g. short-fibre reinforcements
    • 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
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/385—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • 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
    • B29C48/793—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling upstream of the plasticising zone, e.g. heating in the hopper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the invention relates to the field of composite material processing, and is an extrusion molding of a fiber-reinforced thermoplastic composite material, in particular to a feeding device for preheating a feed fiber by using a second-stage screw extruder inlet and outlet.
  • LFT Long Fiber reinforced Thermoplastics, long fiber reinforced thermoplastics, are known as long fibers compared to fibers used in conventional fiber reinforced thermoplastics.
  • the fiber length in a fiber reinforced thermoplastic material is less than 1 mm, while in LFT, the fiber length is generally greater than 2 mm, and even the fiber length in the LFT can be maintained above 5 mm.
  • LFT-D-ILC is called long fiber reinforced thermoplastic material direct in-line compounding process technology (Long Fiber reinforced Thermoplastics-Direct processing-In Line Compounding).
  • LFT long fiber reinforced thermoplastic material direct in-line compounding process technology
  • Thermoplastics-Direct processing-In Line Compounding The application of LFT in automobiles is growing rapidly. Apart from the economic attractiveness, their main advantage is the flexibility in which materials can be compounded. Continuously variable fiber content, different types of fibers, plus engineering plastics open up potential applications.
  • the direct in-line fiber compounding system is integrated in the molding process, and the second-order screw extruder is usually used, that is, the two-screw extruder cooperates to complete the extrusion molding process.
  • thermoplastic pellets or powders and other auxiliaries are first added from the hopper of the first-stage screw extruder, plasticized by the screw, and the plasticized molten polymer is squeezed from the extrusion die of the first-stage screw extruder. Exit and enter the feed port of the second stage screw extruder.
  • the fibers are usually heated.
  • the twisted continuous fibers are spread out with a fork and heated by several consecutive hot rolls of the heating device. Then, it is taken up into the feed port of the second-stage screw extruder.
  • the molding compound which is sheared and compounded by the second-stage extruder is conveyed to a pressing (or injection) molding apparatus, whereby the apparatus performs the molding work of the LFT-D-ECM or LFT-D-IM process.
  • Heating the fiber is one of the key steps in the overall compounding process, although the use of heating equipment increases the investment cost, but without heating it will have a more significant negative impact.
  • the heating can remove the moisture in the fiber, thereby avoiding its entry into the melt and affecting the quality of the product.
  • a large amount of cold fiber not preheated into the melt causes a sudden drop in the melt temperature, resulting in an increase in viscosity, not only The plasticizing effect is poor, and it is not conducive to uniform mixing and sufficient wetting; again, the melt becomes thick and thick, and the fiber is easily broken under the rotary extrusion shearing action of the screw, which affects the final mechanical strength and quality of the product.
  • the traditional hot roll heating equipment is bulky, energy-intensive, and costly, but it is troubled by the industry because it cannot be exempted from this necessary process.
  • the technical problem to be solved by the present invention is to provide a feeding device for preheating the feed fiber by using the second-stage screw extruder into and out of the feed port, thereby eliminating or reducing the use of the conventional heating device, thereby greatly reducing the energy consumption cost.
  • the technical solution adopted by the present invention to solve the above technical problems is: a blanking device for preheating the feed fiber by using a second-stage screw extruder into and out of the feed port for extrusion molding of the direct online long fiber reinforced thermoplastic composite material
  • the chopped fibers extruded from the extrusion die of the first-stage screw extruder and the chopped fibers formed by cutting the continuous fibers through the chopping rolls are all fed into the feed port of the second-stage screw extruder, wherein
  • the unloading device is an unwinding rectification preheating cutting pipe, disposed under the fiber chopping roller, the unloading pipe is introduced into the feeding port of the second-stage screw extruder, and the first step is
  • the extrusion die of the screw extruder communicates with the blanking pipe, and the residual heat of the second-stage screw extruder includes the waste heat of the first-stage screw extruder extrusion melt and the second-stage screw extruder feed port The residual heat of the body is discharged into the
  • the invention fully and concentratedly utilizes the waste heat emitted by the first-stage screw extruder to extrude the melt and the waste heat emitted from the feed port of the second-stage screw extruder, and generates an upward hot air flow through a customized air-rectifying and discharging pipe.
  • Convective thermal contact with the cut-off fiber stream not only allows rapid evaporation of the moisture of the fiber, but also allows the fiber temperature to approach the melt temperature for preheating in a very short period of time.
  • the first-stage and second-stage screw extruders may be a single-screw extruder or a twin-screw extruder.
  • a twin-screw extruder the performance of each part of the mixture is more uniform than that of a single-screw extruder.
  • the air-conditioning rectification preheating feeding pipe is connected to a channel for supplementing hot air in the middle.
  • the height of the channel that supplements the hot air is close to the feed port of the second stage screw extruder.
  • the heat source through the passage that supplements the hot air is a hot air blower.
  • the hot air direction of the hot air passage is the tangential direction of the rotating updraft in the unwinding preheating discharge pipe.
  • the external hot air source is used to provide hot air to further dry and heat to cut off the falling fiber flow to achieve the optimum process state.
  • the external hot air source only serves as an auxiliary heat source, does not require a special power source for high power, saving energy;
  • the fibers are more easily mixed with the melt, and the dispersibility, the fracture resistance and the wettability are greatly improved, and the strength and quality of the product are also improved.
  • FIG. 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Figure 2 is a schematic view of the structure of a preferred embodiment of the present invention.
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • Embodiment 1 is a schematic view showing the structure of the present invention, a feeding device for preheating the feed fiber by using a second-stage screw extruder into and out of the feed port for direct online long fiber reinforced thermoplastic composite material.
  • the feed port 31 of the outlet 3 is extruded in the second-stage screw extruder 3 via a twin-screw 31, wherein the unloading device is an air-extracting and preheating blanking pipe 6, which is disposed on the fiber Below the chopping roller 7, the blanking pipe 6 is passed into the feed port 31 of the second-stage screw extruder 3, and the extrusion die 11 and the discharge pipe of the first-stage screw extruder 1 are 6 communicating, the residual heat of the first-stage screw extruder extruding the melt 2 and the residual heat of the second-stage screw extruder feed port 31 are discharged into the blanking pipe 6, and the chopped fiber 5 is subjected to Preheat.
  • the unloading device is an air-extracting and preheating blanking pipe 6, which is disposed
  • a channel 9 for supplementing hot air is added on the basis of Embodiment 1, which is connected to the blower of the wind blower, and the preheating of the feed pipe 6 is close to the feed port of the second-stage screw extruder.
  • the heat source through the passage 9 that supplements the hot air is a hot air blower.
  • the direction of the hot air entering the hot air passage 9 is the tangential direction of the rotating updraft in the unwinding preheating discharge pipe. The rest is the same as in the first embodiment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

L'invention concerne un dispositif d'alimentation utilisant la chaleur résiduelle d'une entrée/sortie de matériau d'une extrudeuse à vis de second ordre pour le préchauffage d'une charge de fibres, pour l'utilisation dans un moulage par extrusion d'un matériau composite thermoplastique renforcé par de longues fibres alignées directes. Un matériau fondu extrudé à partir d'une filière d'extrusion (11) d'une extrudeuse à vis de premier ordre (1) et les fibres coupées formées par découpe d'une fibre continue par l'intermédiaire d'un rouleau de coupe sont tous deux amenés dans une entrée de matériau (31) de l'extrudeuse à vis de second ordre (3). L'appareil est caractérisé en ce que : le dispositif d'alimentation est un tube d'alimentation souffleur rectificateur de préchauffage (6) disposé sous le rouleau de coupe des fibres (7), le tube d'alimentation est passé à travers l'entrée de matériau (31) de l'extrudeuse à vis de second ordre (3), la filière d'extrusion (11) de l'extrudeuse à vis de premier ordre (1) est en communication avec le tube d'alimentation (6), et la chaleur résiduelle de l'extrudeuse à vis de second ordre (3) est déchargée dans le tube d'alimentation (6). Le dispositif a les avantages suivants : investissement abaissé en éliminant le besoin d'un appareil à rouleaux de préchauffage électrique, conservation de l'énergie en utilisant complètement la chaleur résiduelle, évaporation rapide de l'humidité des fibres par contact thermique convectif entre de l'air chaud et la fibre, technique simplifiée, occurrence réduite d'un phénomène de « pontage », mélange facilité de la fibre et du matériau fondu, et donc résistance et qualité du produit améliorées.
PCT/CN2012/073559 2011-04-08 2012-04-06 Dispositif d'alimentation utilisant la chaleur résiduelle d'une entrée/sortie de matériau d'une extrudeuse à vis de second ordre pour le préchauffage d'une charge de fibres Ceased WO2012136142A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110087110.2 2011-04-08
CN2011100871102A CN102179915A (zh) 2011-04-08 2011-04-08 用二阶螺杆挤出机进出料口余热预热进料纤维的下料装置

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WO2012136142A1 true WO2012136142A1 (fr) 2012-10-11

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PCT/CN2012/073559 Ceased WO2012136142A1 (fr) 2011-04-08 2012-04-06 Dispositif d'alimentation utilisant la chaleur résiduelle d'une entrée/sortie de matériau d'une extrudeuse à vis de second ordre pour le préchauffage d'une charge de fibres

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CN (1) CN102179915A (fr)
WO (1) WO2012136142A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2987603B1 (fr) 2013-04-15 2017-07-26 Mitsubishi Heavy Industries Plastic Technology Co., Ltd. Appareil de moulage par injection et procédé de moulage par injection
CN118080650A (zh) * 2024-04-17 2024-05-28 山东金诚联创管业股份有限公司 钢管自动化压口装置
CN118700496A (zh) * 2024-03-22 2024-09-27 广东中宝电缆有限公司 一种三层共挤装置
CN119319661A (zh) * 2024-12-19 2025-01-17 邯郸市邯钢附属企业公司 一种挤出机螺杆料筒余热回收装置

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* Cited by examiner, † Cited by third party
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CN102179915A (zh) * 2011-04-08 2011-09-14 蒋鼎丰 用二阶螺杆挤出机进出料口余热预热进料纤维的下料装置
CN103978651A (zh) * 2014-05-07 2014-08-13 福建海源新材料科技有限公司 一种玻璃纤维增强pa的lft-d成型工艺

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US5750158A (en) * 1993-01-22 1998-05-12 Cincinnati Milacron Inc. Preheating apparatus for an extruder
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Publication number Priority date Publication date Assignee Title
US3263278A (en) * 1963-09-05 1966-08-02 Borg Warner Combined heater and feeder ram
CN2032938U (zh) * 1988-04-05 1989-02-22 马国实 节能热风式塑料再生挤出机
US5750158A (en) * 1993-01-22 1998-05-12 Cincinnati Milacron Inc. Preheating apparatus for an extruder
CN101935420A (zh) * 2010-08-26 2011-01-05 上海耀华大中新材料有限公司 一种lft-d材料的汽车底部导流板及其制造方法
CN102179915A (zh) * 2011-04-08 2011-09-14 蒋鼎丰 用二阶螺杆挤出机进出料口余热预热进料纤维的下料装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2987603B1 (fr) 2013-04-15 2017-07-26 Mitsubishi Heavy Industries Plastic Technology Co., Ltd. Appareil de moulage par injection et procédé de moulage par injection
CN118700496A (zh) * 2024-03-22 2024-09-27 广东中宝电缆有限公司 一种三层共挤装置
CN118080650A (zh) * 2024-04-17 2024-05-28 山东金诚联创管业股份有限公司 钢管自动化压口装置
CN119319661A (zh) * 2024-12-19 2025-01-17 邯郸市邯钢附属企业公司 一种挤出机螺杆料筒余热回收装置

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