CN114516209B - Composite sheet for sticking roller and Kraft pipe production process using composite sheet - Google Patents
Composite sheet for sticking roller and Kraft pipe production process using composite sheet Download PDFInfo
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- CN114516209B CN114516209B CN202210153503.7A CN202210153503A CN114516209B CN 114516209 B CN114516209 B CN 114516209B CN 202210153503 A CN202210153503 A CN 202210153503A CN 114516209 B CN114516209 B CN 114516209B
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- 239000002131 composite material Substances 0.000 title claims abstract description 85
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 239000002655 kraft paper Substances 0.000 title abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 14
- 229920001903 high density polyethylene Polymers 0.000 claims description 13
- 239000004700 high-density polyethylene Substances 0.000 claims description 13
- 238000005516 engineering process Methods 0.000 claims 2
- 238000002360 preparation method Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 31
- 230000001070 adhesive effect Effects 0.000 description 31
- 239000005038 ethylene vinyl acetate Substances 0.000 description 19
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 19
- 238000010030 laminating Methods 0.000 description 12
- 239000004743 Polypropylene Substances 0.000 description 8
- 229920001155 polypropylene Polymers 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- -1 polypropylene Polymers 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 235000002911 Salvia sclarea Nutrition 0.000 description 4
- 244000182022 Salvia sclarea Species 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000004590 computer program Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 241000238097 Callinectes sapidus Species 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- B29L2023/00—Tubular articles
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention belongs to the field of pipe fitting manufacturing, and in particular relates to a composite sheet for a sticking roller and a Kraft pipe production process using the composite sheet, wherein the Kraft pipe production process comprises the following steps of S1: coextruding the composite sheet in a molten state; s2: rotating a die roller, winding the composite sheet extruded in the step S1 on the die roller, contacting the composite sheet with the die roller, heating the surface of the die roller to a first temperature, and attaching the composite sheet on the die roller through an attaching roller layer; s3: synchronously winding the extruded corrugated pipe on the composite sheet in the step S2 to obtain a semi-finished pipe; s4: and cooling the semi-finished tube to a second temperature, and demolding the semi-finished tube to obtain the Kramer. The invention can realize smooth roller wrapping of the composite sheet without heating the die roller, greatly improves the production efficiency and reduces the energy consumption.
Description
Technical Field
The invention belongs to the field of pipe fitting manufacturing, and particularly relates to a composite sheet for a sticking roller and a Kraft pipe production process using the composite sheet.
Background
A wall pipe with special structure and high external pressure resistance is made up of high-density polyethylene resin as main raw material, single-wall corrugated polypropylene (PP) pipe as supporting structure and hot winding.
However, in the existing manufacturing process of the carat pipe, most of the manufacturing process is a roller mold integrated method, a flat material belt and a U-shaped material belt which are in a molten state are extruded from an extruder die, uniformly wound on a heated roller mold according to a preset position, and after cooling, the flat material belt and the U-shaped material belt are demolded by a demolding mechanism, so that the carat pipe is obtained. At present, most of extruded flat material belts or U-shaped material belts are made of PE polyethylene, the softening point temperature of the PE material is 130 ℃, so that in order to enable the PE belts to be attached to the roller, the roller is required to be heated to about 130 ℃, the flat material belts or the U-shaped belts are wound and attached to the roller and then cooled to form the inner layer of the Kramer, the quality of products is difficult to be ensured, production equipment is required to be provided with corresponding heating modules for roller heating, the manufacturing cost is high, the energy waste is caused, and the production efficiency is seriously influenced.
Disclosure of Invention
The invention aims to overcome at least one defect in the prior art, and provides a composite sheet for a roller and a Kraft pipe production process using the composite sheet.
In order to solve the technical problems, the invention adopts the following technical scheme:
a composite sheet for a bonding roller is provided, which comprises a body and a bonding roller layer arranged on the surface of the body, wherein the softening point temperature of the bonding roller layer is lower than that of the body.
In this scheme, through setting up the laminating roller layer in a side of body, when producing the kla pipe, the composite sheet of melting is extruded earlier, because the softening point temperature on laminating roller layer is less than body temperature, therefore the composite sheet of molten state contacts with the mould roller and can heat the mould roller simultaneously for the local temperature of mould roller intensifies to the softening point temperature on laminating roller layer, guarantees that laminating roller layer can wrap up the mould roller, can improve the production efficiency of kla pipe like this greatly, and reduces the loss of the energy.
Preferably, the roll layer is made of EVA (ethylene-vinyl acetate copolymer) and the body is made of HDPE.
Preferably, the surface of the body is inlaid with the adhesive roller layer, and the exposed surface of the adhesive roller layer is flush with the surface of the body.
Preferably, the transverse width W of the body is 140-160 mm, and the thickness of the whole composite sheet is 3.5-4.5 mm.
Preferably, the transverse width D of the adhesive roller layer is 50% -100% of the transverse width W of the body, and the thickness of the adhesive roller layer is 0.1-1 mm.
The utility model also provides a production process of the Clar pipe using the composite sheet, which comprises the following steps:
s1: coextruding the composite sheet in a molten state;
s2: rotating a die roller, winding the composite sheet extruded in the step S1 on the die roller through a laminating roller layer, contacting the laminating roller layer of the composite sheet with the die roller, heating the surface of the die roller to a first temperature, and laminating the composite sheet on the die roller through the laminating roller layer;
s3: synchronously winding the extruded corrugated pipe on the composite sheet in the step S2 to obtain a semi-finished pipe;
s4: and cooling the semi-finished tube to a second temperature, and demolding the semi-finished tube to obtain the Kramer.
According to the scheme, the adhesive roller layer on the composite sheet in a molten state is made of EVA, the body is made of HDPE, the softening point temperature of the EVA is 70-80 ℃, the temperature of the composite sheet in the molten state reaches about 200 ℃, when the composite sheet is wound on the die roller, heat conduction occurs between the adhesive roller layer and the die roller, and the contact position of the die roller and the adhesive roller layer is rapidly heated to the softening point temperature of EVA, so that the composite sheet can wrap the die roller, and continuous production of a Kela tube is ensured.
Preferably, the temperature of the composite sheet in the molten state in step S1 is 180 to 220 ℃.
Preferably, the linear speed of rotation of the die cylinder in the step S2 is 8000-00 mm/min.
Preferably, in the step S2, the first temperature is 65 to 85 ℃.
Preferably, in the step S4, the second temperature is 45 to 55 ℃.
Compared with the prior art, the beneficial effects are that:
according to the method, the composite sheet with one side being made of EVA material is coextruded, the temperature of the composite sheet in a molten state reaches about 200 ℃, and heat conduction occurs when the composite sheet contacts with the die roller, so that the local surface temperature of the die roller rapidly reaches about 80 ℃, and further, the die roller can be wrapped by the composite sheet, and the production method does not need to heat the die roller through an additional heating device, so that the production and manufacturing cost can be greatly reduced, the energy consumption is reduced, and the production efficiency of the Kela tube can be improved.
Drawings
FIG. 1 is a schematic view showing the overall structure of a composite sheet according to example 1 of the present invention;
FIG. 2 is a block diagram of the process flow of the process for producing a Kela tube according to example 4 of the present invention;
FIG. 3 is a block diagram of the process flow of the process for producing a clara tube of example 5 of the present invention;
fig. 4 is a process flow diagram of the process for producing a clara tube of example 6 of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship described in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are orientations or positional relationships indicated by terms "upper", "lower", "left", "right", "long", "short", etc., based on the orientations or positional relationships shown in the drawings, this is merely for convenience in describing the present invention and simplifying the description, and is not an indication or suggestion that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present patent, and that it is possible for those of ordinary skill in the art to understand the specific meaning of the terms described above according to specific circumstances.
The technical scheme of the invention is further specifically described by the following specific embodiments with reference to the accompanying drawings:
example 1:
a first embodiment of a composite sheet for a roll is shown in fig. 1, and includes a body 1 and a roll layer 2 disposed on a surface of the body 1, wherein a softening point temperature of the roll layer 2 is lower than a softening point temperature of the body 1.
The roll layer 2 in this embodiment is made of EVA, preferably basf V6110M; the body 1 is made of HDPE material, and the brand of the material can be 5421B. The softening point temperature of the EVA material is 70-80 ℃, and the softening point temperature of the HDPE material is 130 ℃. Generally, when the composite sheet 100 is heated to a molten state of about 200 ℃ during production of the kraut pipe, when the composite sheet 100 in the molten state is wound on a mold roller for producing the kraut pipe, according to a heat conduction theory, the surface of the mold roller can be heated to about 80 ℃ by the composite sheet 100, so that the composite sheet 100 can smoothly wrap the roller, and can be smoothly demolded after being cooled to 50 ℃. In the embodiment where the EVA material is used as the adhesive roll layer 2 and is only a reference, other materials having a softening point of about 80 ℃ and capable of being well adhered to HDPE may be used in the specific implementation process, and will not be described in detail here.
In order to avoid uneven inner wall of the manufactured clar pipe or insufficient strength of the manufactured clar pipe caused by the existence of the adhesive roller layer 2, the adhesive roller layer 2 in the embodiment is inlaid on the surface of the body 1, and the exposed surface of the adhesive roller layer 2 is flush with the surface of the body 1, specifically, the adhesive roller layer 2 and the body 1 together form a square strip structure. Specifically, the composite sheet 100 may be formed by co-extrusion of an HDPE material and an EVA material, wherein 2-3 parts of carbon black masterbatch may be mixed in the HDPE material.
The transverse width W of the body 1 in this embodiment is 140mm, and the overall thickness of the composite sheet 100 is 3.5mm, i.e., the thickness of the body 1 after being superimposed on the adhesive roller layer 2 is 3.5mm. Specifically, because the EVA material is more elastic than the HDPE material, the force of wrapping the EVA material on the mold roller is greater than that of the HDPE, so the contact area between the adhesive roll layer 2 made of the EVA material and the mold roller cannot be too large, and the adhesive roll layer 2 made of the EVA material cannot be too thick, so the transverse width D of the adhesive roll layer 2 in this embodiment is 50% of the transverse width W of the body 1, and the thickness of the adhesive roll layer 2 is 0.1mm. Of course, in the embodiment, the thicknesses and lateral widths of the adhesive roll layer 2 and the body 1 are only referenced, and the embodiment is not to be construed as limiting the present embodiment, and the thicknesses and lateral widths of the adhesive roll layer 2 and the body 1 may be changed according to actual situations in the specific implementation process.
In this scheme, through setting up the laminating roller layer 2 in one side of the body 1 of compound sheet 100, when producing the kla pipe, the compound sheet 100 of coextrusion melting earlier, because laminating roller layer 2's softening point temperature is less than body 1 temperature, therefore the compound sheet 100 of molten state contacts with the mould roller and can heat the mould roller simultaneously for the local temperature of mould roller intensifies to laminating roller layer's softening point temperature, guarantees laminating roller layer 2 can wrap up the mould roller, can improve the production efficiency of kla pipe greatly like this, and reduces the loss of the energy.
Example 2:
the difference between this embodiment and embodiment 1 is that the transverse width W of the body 1 in this embodiment is 160mm, the thickness of the composite sheet 100 is 4.5mm, that is, the thickness of the body 1 and the adhesive roll layer 2 superimposed is 4.5mm, the transverse width D of the adhesive roll layer 2 is 90% of the transverse width W of the body 1, and the thickness of the adhesive roll layer 2 is 1mm.
Example 3:
the difference between this embodiment and embodiment 1 or embodiment 2 is that the transverse width W of the body 1 in this embodiment is 150mm, the thickness of the composite sheet 100 is 4mm, that is, the thickness of the body 1 and the adhesive roll layer 2 added is 4mm, the transverse width D of the adhesive roll layer 2 is 70% of the transverse width W of the body 1, and the thickness of the adhesive roll layer 2 is 0.5mm.
Example 4:
a first embodiment of a process for manufacturing a carat pipe using the composite sheet of example 1, example 2, or example 3 described above is shown in fig. 2, comprising the steps of:
s1: coextruding the composite sheet 100 in a molten state;
s2: rotating the mold roll, winding the composite sheet 100 extruded in the step S1 on the mold roll through the adhesive roll layer 2, contacting the adhesive roll layer 2 of the composite sheet 100 with the mold roll and heating the surface of the mold roll to a first temperature (namely, heating the position of the mold roll contacted with the composite sheet 100 to the first temperature), and attaching the composite sheet 100 on the mold roll through the adhesive roll layer 2;
s3: the extruded corrugated pipe is synchronously wound on the composite sheet 100 in the step S2 to obtain a semi-finished pipe, namely, the corrugated pipe is wound on the body 1 of the composite sheet 100;
s4: and cooling the semi-finished tube to a second temperature, and demolding the semi-finished tube to obtain the Kramer.
This embodiment may perform steps S1 to S4 based on the existing continuous production apparatus for clara pipe (e.g., the apparatus of patent publication No. CN113147010 a) to perform continuous production of clara pipe, and the related apparatus will not be described in detail. It does not need to carry out excessive transformation on the prior carat pipe continuous production equipment, and can avoid the increase of production cost.
In order to enable the composite sheet 100 to quickly heat the mold roll to the set temperature, the wall thickness of the mold roll in this embodiment is preferably 6mm, which is, of course, only a reference embodiment, and the wall thickness of the mold roll may be adjusted according to the temperature of the composite sheet 100, the rotation speed of the mold roll, and the like, and is not limited herein.
The temperature of the composite sheet 100 in the molten state in step S1 in this embodiment is 180 ℃.
In the present embodiment, the linear speed of rotation of the mold roll in step S2 is 8000mm/min, and this speed is set in consideration of sufficient contact time between the mold roll and the composite sheet 100, so that the composite sheet 100 can better wrap the mold roll to ensure product quality.
In step S2 in this embodiment, the first temperature is 65 ℃. In this embodiment, when the 180 ℃ composite sheet 100 is connected to the mold roller, the heat on the composite sheet 100 is transferred to the mold roller, and after the mold roller absorbs the heat according to the heat transfer theory (fourier law), the local surface temperature of the mold roller can reach 65 ℃, and the mold roller at 65 ℃ is close to the softening point temperature of EVA, so that good roller wrapping of the composite sheet 100 can be realized. This eliminates the need for an additional heating device to heat the mold roll to 65 c or even 130 c, and completes the heating operation of the mold roll while the wrapping operation of the composite sheet 100 is performed.
In order to avoid that the formed clary pipe is too tightly attached to the mold roller and cannot be demolded, in step S4 in the embodiment, the second temperature is 45 ℃, so that demolding is performed when the clary pipe is not completely cooled to room temperature, the damage to the inner wall caused by the overlarge attaching force between the inner wall of the clary pipe and the mold roller can be avoided, and the yield of the clary pipe is further improved.
It should be understood that after the HDPE and EVA materials are heated to 180 ℃ in two extruders, respectively, one extruder will extrude the HDPE body 1 and the other extruder will extrude the EVA applicator layer 2, and the body 1 and applicator layer 2 are formed into a strip-shaped composite sheet 100 through a composite die to be wound around a die cylinder.
The formed composite sheet 100 is then lapped over a mold roll which is rotated at a linear speed of 8000mm/min and pulled out by a pulling mechanism at a speed such that the composite sheet 100 is wound around the surface of the mold roll.
When the die roller winds the composite sheet 100, the third extruder heats the PP polypropylene material to 190 ℃, then extrudes the PP polypropylene material at the position where the die roller winds the composite sheet 100, and is attached to the composite sheet 100, after the PP polypropylene material is wound to a set length, the three extruders all stop extrusion, the die roller stops rotating, and the semi-finished pipe is cut at the corresponding position, so that the semi-finished pipe is obtained.
The semi-finished tube is cooled to 45 ℃ on a die, and is removed from a die roller by a demoulding mechanism, so as to obtain the Kela tube.
In this embodiment, the EVA material with a lower melting point is extruded as the adhesive roller layer 2 in the composite sheet 100, the adhesive roller layer 2 is directly contacted with the mold roller, and in the adhesive roller process, the heat of the composite sheet 100 in a molten state is conducted onto the mold roller, so that the temperature of the mold roller rises to the vicinity of the softening point of the EVA material, the composite sheet 100 can well wrap the mold roller, the mold roller does not need to be heated before the roller wrapping, the possibility of wrapping the roller at normal temperature is realized, the production efficiency of the krabbe tube is greatly improved, and the loss of energy is reduced.
Example 5:
as shown in fig. 3, which is a second example of a process for manufacturing a carat pipe, this example differs from example 4 only in that the temperature of the molten composite sheet 100 in this example is 200 ℃, the first temperature is 70 ℃, and the second temperature is 50 ℃; the linear speed of the die drum rotation was 9000mm/min.
Example 6:
as shown in fig. 4, which is a third example of a process for manufacturing a carat pipe, this example differs from example 4 or example 5 only in that the temperature of the molten composite sheet 100 in this example is 220 ℃, the first temperature is 80 ℃, and the second temperature is 55 ℃; the linear speed of the rotation of the die roller is 10000mm/min.
The present invention is described with reference to flowchart illustrations or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application, it being understood that each flowchart illustration or block in the flowchart illustrations or block diagrams, and combinations of flowcharts or blocks in the flowchart illustrations or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
It is to be understood that the above examples of the present invention are provided by way of illustration only and not by way of limitation of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (5)
1. The utility model provides a production technology for composite sheet preparation kla pipe of subsides roller, its characterized in that, composite sheet (100) include body (1) and set up in subsides roller layer (2) on body (1) surface, the softening point temperature of subsides roller layer (2) is less than the softening point temperature of body (1), subsides roller layer (2) inlay in the surface of body (1) and subsides roller layer (2) expose the face and the surface looks parallel and level of body (1), subsides roller layer (2) are the EVA material, body (1) are the HDPE material, and production technology includes following steps:
s1: coextruding a composite sheet (100) in a molten state at 180-220 ℃;
s2: rotating a die roller, winding and attaching the composite sheet (100) extruded in the step S1 on the die roller through a roller attaching layer (2), contacting the composite sheet (100) in a molten state with the die roller, and heating the surface of the die roller to a first temperature according to a heat conduction theory, wherein the first temperature is 65-85 ℃;
s3: synchronously winding the extruded corrugated pipe on the composite sheet (100) in the step S2 to obtain a semi-finished pipe;
s4: and cooling the semi-finished tube to a second temperature, and demolding the semi-finished tube to obtain the Kramer.
2. The production process for manufacturing the kla tube by using the composite sheet for the sticking roller according to claim 1, wherein the transverse width W of the body (1) is 140-160 mm, and the thickness of the composite sheet is 3.5-4.5 mm.
3. The production process for manufacturing the kla tube by using the composite sheet for the sticking roller according to claim 2, wherein the transverse width D of the sticking roller layer (2) is 50% -100% of the transverse width W of the body (1), and the thickness of the sticking roller layer (2) is 0.1-1 mm.
4. The process for manufacturing a kla tube by using the composite sheet for the sticking roll according to claim 1, wherein the linear speed of the rotation of the die roller in the step S2 is 8000-10000 mm/min.
5. The process for manufacturing a kla tube by using the composite sheet for a roll according to claim 1, wherein in the step S4, the second temperature is 45-55 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210153503.7A CN114516209B (en) | 2022-02-18 | 2022-02-18 | Composite sheet for sticking roller and Kraft pipe production process using composite sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210153503.7A CN114516209B (en) | 2022-02-18 | 2022-02-18 | Composite sheet for sticking roller and Kraft pipe production process using composite sheet |
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| Publication Number | Publication Date |
|---|---|
| CN114516209A CN114516209A (en) | 2022-05-20 |
| CN114516209B true CN114516209B (en) | 2024-03-08 |
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| CN202210153503.7A Active CN114516209B (en) | 2022-02-18 | 2022-02-18 | Composite sheet for sticking roller and Kraft pipe production process using composite sheet |
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| JPH01182031A (en) * | 1988-01-18 | 1989-07-19 | Toyo Chem Co Ltd | Manufacture of synthetic resin corrugated pipe |
| JP2003136577A (en) * | 2001-10-29 | 2003-05-14 | Mitsubishi Kagaku Form Plastic Kk | Manufacturing method for decorative foamed composite |
| CN104527189A (en) * | 2014-12-22 | 2015-04-22 | 江阴申隆包装材料有限公司 | Online double-layer composite plastic blow-molding film sheet and manufacturing method thereof |
| CN113147010A (en) * | 2021-04-13 | 2021-07-23 | 广东雄塑科技集团股份有限公司 | B-type krah pipe continuous production device and production method |
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2022
- 2022-02-18 CN CN202210153503.7A patent/CN114516209B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4000760A (en) * | 1973-11-05 | 1977-01-04 | William C. Heller, Jr. | Plastic hose having embedded reinforcing braid |
| US4329196A (en) * | 1979-08-16 | 1982-05-11 | Monsanto Company | Method of making a three-dimensional laminate |
| JPH01182031A (en) * | 1988-01-18 | 1989-07-19 | Toyo Chem Co Ltd | Manufacture of synthetic resin corrugated pipe |
| JP2003136577A (en) * | 2001-10-29 | 2003-05-14 | Mitsubishi Kagaku Form Plastic Kk | Manufacturing method for decorative foamed composite |
| CN104527189A (en) * | 2014-12-22 | 2015-04-22 | 江阴申隆包装材料有限公司 | Online double-layer composite plastic blow-molding film sheet and manufacturing method thereof |
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