CN111113853A - A mould for preparing composite material - Google Patents

A mould for preparing composite material Download PDF

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Publication number
CN111113853A
CN111113853A CN201911309536.0A CN201911309536A CN111113853A CN 111113853 A CN111113853 A CN 111113853A CN 201911309536 A CN201911309536 A CN 201911309536A CN 111113853 A CN111113853 A CN 111113853A
Authority
CN
China
Prior art keywords
melt
die
outlet
inlet
melt adhesive
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.)
Pending
Application number
CN201911309536.0A
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Chinese (zh)
Inventor
唐道远
邓少华
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.)
Anhui Sentai Wpc Group Co ltd
Original Assignee
Anhui Sentai Wpc Group 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 Anhui Sentai Wpc Group Co ltd filed Critical Anhui Sentai Wpc Group Co ltd
Priority to CN201911309536.0A priority Critical patent/CN111113853A/en
Priority to PCT/CN2020/082351 priority patent/WO2021120441A1/en
Publication of CN111113853A publication Critical patent/CN111113853A/en
Pending legal-status Critical Current

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    • 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
    • B29C48/30—Extrusion nozzles or dies
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • 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
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/10—Building elements, e.g. bricks, blocks, tiles, panels, posts, beams

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention relates to a die for preparing a composite section bar, and belongs to the technical field of dies. The die is formed by splicing and fixing a plurality of die plates and is provided with a cavity, a melt adhesive channel, a melt channel and a die outlet; the plurality of die plates at least comprise an inlet die plate, a melt adhesive die plate and an outlet die plate; the end face of the inlet template is provided with an inlet of the metal core material, and the die outlet is arranged on the end face of the outlet template. According to the invention, the melt casting space and the melt casting space are arranged at a certain interval of 0.5-2 cm, and the coating layer and the melt layer can be fused at the interface of the coating layer and the melt layer to a certain degree due to the arrangement of the interval; this fusing may promote a stronger attachment of the cladding layer to the metal core material.

Description

A mould for preparing composite material
Technical Field
The invention relates to a die for preparing a composite section bar, and belongs to the technical field of dies.
Background
Metal profiles are very commonly used in the construction field, such as aluminium alloy profiles and the like. The naked metal section bar is easy to be rusted; the coated metal section is also easily damaged physically, so that the coating is damaged, and thus, the metal section is easily rusted. A preferred solution is to mount a plastic sleeve on the outer surface of the metal profile, so that the metal profile is well protected. However, due to different material properties of metal and plastic, when the environmental temperature is different, the plastic sleeve often cracks due to asynchronous expansion and contraction caused by temperature, so that the plastic sleeve is difficult to provide protection for a long time.
European patent publication No. EP 2620276B 1 discloses a structural member comprising a monolithic extrusion member comprising a metal core, a covering layer comprising polyolefin resin and wood powder, the covering layer being formed on an outer surface of the metal core, and an adhesive layer, the adhesive layer being formed between the covering layer and the core, wherein the adhesive layer comprises a copolymer prepared by polymerizing at least α -olefin and an epoxy-containing unsaturated monomer, the metal core is a hollow-shaped aluminum core, a flat plate-like or irregular cross-section, and has a thickness of 1.1 to 3.0mm, the covering layer has a thickness of 0.7 to 5mm, the covering layer comprises 5 to 50 parts by weight of wood powder with respect to 100 parts by weight of polyolefin resin, the adhesive layer has a thickness of 0.05 to 0.5 mm, and the adhesive layer and the covering layer are simultaneously extrusion-molded.
Disclosure of Invention
The present invention is to solve the above problems, and thus provides a mold for manufacturing a composite profile. Through the die, the adhesive layer and the coating layer can be conveniently extruded and coated on the periphery of the metal core material together.
The technical scheme for solving the problems is as follows:
a mould for preparing composite section is formed by splicing and fixing a plurality of mould plates and is provided with a cavity, a melt adhesive channel, a melt material channel and a mould outlet; the plurality of die plates at least comprise an inlet die plate, a melt adhesive die plate and an outlet die plate; the end face of the inlet template is provided with an inlet of the metal core material, and the die outlet is arranged on the end face of the outlet template; the melt adhesive channel comprises a melt adhesive inlet, a melt adhesive cavity, a melt adhesive runner and a melt adhesive outlet, the melt adhesive inlet, the melt adhesive cavity and the melt adhesive runner are arranged on the melt adhesive template, and the melt adhesive outlet is arranged on the melt adhesive template or on the melt adhesive template; the melt channel comprises a melt inlet, a melt cavity, a melt channel and a melt outlet, the melt inlet, the melt cavity and the melt channel are arranged on the melt template, and the melt outlet is arranged on the melt template or the outlet template; a melt flow-casting space is formed between the melt outlet and the cavity; a molten gel casting space is formed between the molten gel outlet and the cavity.
Preferably, the outlet die plate and the melt die plate are the same die plate.
Preferably, the thickness of the melt-casting space is not less than 100 μm.
Preferably, the thickness of the melt-casting space is not less than 2mm and not more than 20 mm.
Preferably, the melt flow-casting space is arranged in front of the melt flow-casting space in the workpiece feeding direction of the die, and the space between the melt flow-casting space and the melt flow-casting space is 5-50 mm.
Preferably, the melt inlet is arranged on the side of the mold, and the melt inlet is arranged above the mold.
Preferably, the melt inlet is arranged above the mold, and the melt inlet is arranged on the side of the mold.
The invention has the following beneficial effects:
in the die, the melt casting space and the melt casting space are arranged at a certain interval of 0.5-2 cm, and the coating layer and the melt layer can be mixed and melted at the interface of the coating layer and the melt layer to a certain degree by the arrangement of the interval; because of the interval, the melt glue layer is firstly extruded on the metal core material and is solidified to a certain extent, but the solidification is not complete; because the material components of the coating layer and the melt adhesive layer have certain similarity, the coating layer and the melt adhesive layer are fused to a certain extent at the interface in a high-temperature and high-pressure die cavity environment; this fusing may promote a stronger attachment of the cladding layer to the metal core material.
Drawings
FIG. 1 is a schematic view of a product produced by using the mold of the present invention;
FIG. 2 is a schematic view of the mold construction of the present invention;
FIG. 3 is a schematic view of the construction of the melt adhesive template of the inventive die;
FIG. 4 is a schematic structural view of a melt template of the mold of the present invention;
in the figure, 1-metal core material, 2-coating layer and 3-adhesive layer;
41-cavity, 42-melt channel, 43-melt channel, 44-outlet of the mould;
42 a-melt adhesive inlet, 42 b-melt adhesive cavity, 42 c-melt adhesive runner and 42 e-melt adhesive casting space;
43 a-melt inlet, 43 b-melt chamber, 43 c-melt channel, 43 e-melt casting space;
401-inlet template, 402-melt adhesive template, 403-melt adhesive template, 404-inlet template, 405-water jacket.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
This detailed description is to be construed as illustrative only and is not limiting, since modifications will occur to those skilled in the art upon reading the preceding specification, and it is intended to be protected by the following claims.
Example one
As shown in fig. 1, a composite section includes a metal core 1 made of an aluminum alloy material, an adhesive layer 2 formed of a hot melt adhesive, and a coating layer 3 made of a plastic material.
The die structure for manufacturing the composite section is as follows:
as shown in fig. 2-4, the mold is formed by assembling and fixing a plurality of mold plates, and has a cavity 41, a melt channel 42, a melt channel 43 and a mold outlet 44; the plurality of mold plates at least comprises an inlet mold plate 401, a melt adhesive mold plate 402, a melt adhesive mold plate 403 and an outlet mold plate 404; an inlet of a metal core material 1 is arranged on the end face of the inlet template 401, and a mold outlet 44 is arranged on the end face of the outlet template 404; the melt adhesive channel 42 comprises a melt adhesive inlet 42a, a melt adhesive cavity 42b, a melt adhesive runner 42c and a melt adhesive outlet, and the melt adhesive inlet 42a, the melt adhesive cavity 42b, the melt adhesive runner 42c and the melt adhesive outlet are arranged on the melt adhesive template 402; the melt channel 43 comprises a melt inlet 43a, a melt cavity 43b, a melt channel 43c, and a melt outlet, the melt inlet 43a, the melt cavity 43b, and the melt outlet being disposed on the melt mold plate 403; a melt casting space 43e is formed between the melt outlet and the cavity 41; a melt flow-casting space 42e is formed between the melt outlet and the cavity 41.
The die further comprises a water jacket 405, the water jacket 405 is arranged behind the outlet die plate 404, and the water jacket has the main function of cooling the workpiece-composite section.
The preparation method of the composite section bar of the embodiment is as follows:
(1) preparation work:
two extruders are used, the first extruder is butted with the melt adhesive channel 42 of the die; the second extruder interfaces with the melt channel 42 of the die;
(2) introducing a metal core material:
preheating the metal core material 1 to form a hot metal core material, and introducing the hot metal core material into a cavity of a mold;
(3) melt adhesive extrusion:
putting a homopolymer (hot melt adhesive) of maleic anhydride grafted PE into a first extruder, obtaining the molten hot melt adhesive under the action of the first extruder, extruding the molten hot melt adhesive into a melt adhesive channel 42, leading out the molten hot melt adhesive from a melt adhesive outlet of a mold 4, entering a melt adhesive casting space 42e, and covering the outer peripheral surface of the hot metal core material 1 in the melt adhesive casting space 42e to form a metal core material containing adhesive; with the feeding of the metal core material 1, the metal core material containing the glue is also fed forwards at the same time; the temperature of the hot melt adhesive in the adhesive melting channel 42 is controlled to 210 ℃; when the hot melt adhesive is extruded, the rotating speed of the screw is 5.5 r/min;
(4) melt extrusion:
feeding the raw material and the additive into a second extruder, obtaining the molten raw material under the action of the second extruder, extruding the molten raw material into a melt channel 43, leading out from a melt outlet of a die 4, entering a melt casting space 43e, and covering the outer peripheral surface of the rubber-containing metal core material in the melt casting space 43e to form a blank of the composite profile; the blank is simultaneously fed forward along with the feeding of the metal core material 1;
(5) extruding:
the billet of composite profile is extruded from the exit 44 of the die to form the composite profile.
Example two
A mould for preparing a composite section bar is different from the first embodiment only in that a melt adhesive inlet is arranged on the side of the mould, and a melt inlet is arranged above the mould.
EXAMPLE III
A mould for preparing a composite section bar is different from the first embodiment only in that a melt adhesive inlet is arranged above the mould, and a melt inlet is arranged on the side of the mould.

Claims (7)

1. A mould for preparing composite material, which is characterized in that: the die is formed by splicing and fixing a plurality of die plates and is provided with a die cavity (41), a melt adhesive channel (42), a melt material channel (43) and a die outlet (44); the plurality of die plates at least comprises an inlet die plate (401), a melt adhesive die plate (402), a melt adhesive die plate (403) and an outlet die plate (404); an inlet of a metal core material is arranged on the end face of the inlet template (401), and a mold outlet (44) is arranged on the end face of the outlet template (404); the melt adhesive channel (42) comprises a melt adhesive inlet (42 a), a melt adhesive cavity (42 b), a melt adhesive runner (42 c) and a melt adhesive outlet, the melt adhesive inlet (42 a), the melt adhesive cavity (42 b) and the melt adhesive runner (42 c) are arranged on the melt adhesive template (402), and the melt adhesive outlet is arranged on the melt adhesive template (402) or on the melt adhesive template (403); the melt channel (43) comprises a melt inlet (43 a), a melt cavity (43 b), a melt channel (43 c) and a melt outlet, the melt inlet (43 a), the melt cavity (43 b) and the melt channel (43 c) are arranged on the melt template (403), and the melt outlet is arranged on the melt template (403) or on the outlet template (404); a melt casting space (43 e) is formed between the melt outlet and the cavity (41); a melt flow-casting space (42 e) is formed between the melt outlet and the cavity (41).
2. A mold as defined in claim 1, wherein: the exit die plate (404) and the melt die plate (403) are the same die plate.
3. A mold as defined in claim 1, wherein: the thickness of the melt-casting space (42 e) is not less than 100 μm.
4. A mold as defined in claim 1, wherein: the thickness of the melt-casting space (43 e) is not less than 2mm and not more than 20 mm.
5. A mold as defined in claim 1, wherein: in the workpiece feeding direction of the die, the melt casting space (42 e) is arranged in front of the melt casting space (43 e), and the space between the melt casting space and the melt casting space is 5-20 mm.
6. A mold as defined in claim 1, wherein: the melt inlet (42 a) is arranged on the side of the die, and the melt inlet (43 a) is arranged above the die.
7. A mold as defined in claim 1, wherein: the melt inlet (42 a) is arranged above the die, and the melt inlet (43 a) is arranged on the side of the die.
CN201911309536.0A 2019-12-18 2019-12-18 A mould for preparing composite material Pending CN111113853A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201911309536.0A CN111113853A (en) 2019-12-18 2019-12-18 A mould for preparing composite material
PCT/CN2020/082351 WO2021120441A1 (en) 2019-12-18 2020-03-31 Mold for preparing composite profile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911309536.0A CN111113853A (en) 2019-12-18 2019-12-18 A mould for preparing composite material

Publications (1)

Publication Number Publication Date
CN111113853A true CN111113853A (en) 2020-05-08

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ID=70499640

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911309536.0A Pending CN111113853A (en) 2019-12-18 2019-12-18 A mould for preparing composite material

Country Status (2)

Country Link
CN (1) CN111113853A (en)
WO (1) WO2021120441A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112157860A (en) * 2020-08-24 2021-01-01 南通博联材料科技有限公司 Method for manufacturing metal product coated by high polymer material
WO2021120440A1 (en) * 2019-12-18 2021-06-24 安徽森泰木塑集团股份有限公司 Composite profile
CN113320116A (en) * 2021-06-18 2021-08-31 无锡井上华光汽车部件有限公司 Variable-section extrusion die and extrusion method

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CN103209832A (en) * 2010-09-21 2013-07-17 仓敷纺绩株式会社 Integrally extrusion-molded object and building member

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JPS55150327A (en) * 1979-05-12 1980-11-22 Mito Kako:Kk Manufacture of imitation bamboo tube material
JPS58158216A (en) * 1982-03-13 1983-09-20 Kinugawa Rubber Ind Co Ltd Preparation of welt for automobile
JPS5985734A (en) * 1982-11-08 1984-05-17 Toyoda Gosei Co Ltd Manufacture of resin and metal composite molding
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CN1575962A (en) * 2003-07-22 2005-02-09 马林远 Producing teahnology for high-polymer composite pipe and its special die
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Publication number Priority date Publication date Assignee Title
CN103209832A (en) * 2010-09-21 2013-07-17 仓敷纺绩株式会社 Integrally extrusion-molded object and building member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021120440A1 (en) * 2019-12-18 2021-06-24 安徽森泰木塑集团股份有限公司 Composite profile
CN112157860A (en) * 2020-08-24 2021-01-01 南通博联材料科技有限公司 Method for manufacturing metal product coated by high polymer material
CN113320116A (en) * 2021-06-18 2021-08-31 无锡井上华光汽车部件有限公司 Variable-section extrusion die and extrusion method

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Application publication date: 20200508