CN103310912A - Continuous winding, continuous unwinding and plastic extruding process for halogen-free low-smoke anti-flaming B-type polyolefin insulated wires - Google Patents
Continuous winding, continuous unwinding and plastic extruding process for halogen-free low-smoke anti-flaming B-type polyolefin insulated wires Download PDFInfo
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- CN103310912A CN103310912A CN2013102223194A CN201310222319A CN103310912A CN 103310912 A CN103310912 A CN 103310912A CN 2013102223194 A CN2013102223194 A CN 2013102223194A CN 201310222319 A CN201310222319 A CN 201310222319A CN 103310912 A CN103310912 A CN 103310912A
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Abstract
The invention provides a continuous winding, continuous unwinding and plastic extruding process for halogen-free low-smoke anti-flaming B-type polyolefin insulated wires. The process includes that S1, copper wires enter a wire stretcher for stretching; S2, copper cores after being stretched by the wire stretcher are annealed and heated through three metal guide wheels connected with a heating power supply; S3, the wires after being annealed and heated are extruded by a screw of a plastic extruding machine, and plastic is extruded on the copper cores; S4, irradiation crosslinking is performed by an electron accelerator. Wires processed by the process have good plasticization of insulating materials, small screw load and better insulating surfaces. Through reasonable mould matching, temperature at each section of the plastic extruding machine is strictly controlled, decomposition of low molecular materials in insulating materials caused by overheat is avoided to prevent the insulating materials from having air holes or unsmooth surfaces. Segmentation cooling is adopted after insulating extrusion (after mould stripping), and generation of insulating internal stress is avoided, so that excellent performance of products is guaranteed.
Description
Technical field
The present invention relates to a kind of processing technology of electric wire, particularly a kind of LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian moves back and extrusion process.
Background technology
Metal produces mechanical performance (tensile strength, percentage elongation etc.) and physical and chemical performance (resistivity, thermal conductivity etc.) variation in plastic history phenomenon claims work hardening; Because wire rod is in the process that stretches, the variation of its analytical structure causes that it hardening can take place, becomes fragile, resistivity raises, in order to recover the plasticity of monofilament, keep the good electric property of material, therefore wire rod need be heat-treated at a certain temperature (annealing in process).But be that the wire in the drawing process is annealed in the existing course of processing, be generally an annealing device is set specially, the metal needs of spooling again unwrapping wire make wire again annealed device anneal, and then annealed wire is twined rolling.So just taken wire drawing and annealing two procedures, unwrapping wire again wiry and winding are easy to generate problems such as broken string, and the production cycle is long, and production cost is big.
Extrusion molding also is the procedure in the course of processing of electric wire, extrusion molding is that plastic raw materials is heated, make it to be glutinous stream mode, adopt continuously extruded mode to carry out, push with screw rod by plastic extruding machine, plastics are extruded on conductor or the cable core as on insulating barrier, screen, sheath and the outer jacket, cool off then.But the easy decomposition of lower-molecular substance in the Insulation Material in the existing heating process causes insulation that pore or rough phenomenon are arranged; Can produce the insulation internal stress during cooling, the performance of product can not get guaranteeing.
Summary of the invention
The object of the present invention is to provide a kind of wire drawing and annealing two procedures of making to carry out synchronously also guaranteeing that the LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian of the performance of product moves back and extrusion process.
For solving the problems of the technologies described above, LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian of the present invention moves back and extrusion process, comprises the steps: S1, and copper cash enters drawing machine and carries out backguy; S2, the copper core of finishing backguy through drawing machine is by the heating of annealing of three metal guide wheels that are connected with heating power supply; S3, the electric wire after the annealing heating pushes with screw rod by plastic extruding machine, and plastics are extruded on the copper core.
Described annealing heating comprises: S2.1, and the copper core preheats between the first metal guide wheel and the second metal guide wheel; S2.2 anneals in the annealing pipe of copper core between the second metal guide wheel and the 3rd metal guide wheel; S2.3 carries out liquid cools with cooling fluid to the copper core; S2.4 dries up the copper core that has cooled off.
Described S3 comprises: S3.1, plastics carry out the segmentation plasticizing in the machine barrel of plastic extruding machine; S3.2 finishes the plasticizing plastics and pushes in mould by screw rod, extrudes on the copper core; S3.3, the electric wire of finishing extruding carries out the segmentation cooling.
Described pre-warmed length is 12m.
The length of described annealing is 2m.The pressure of protection steam is 0.4 ± 0.01Mpa in the described annealing pipe, is limited to 20Kg/h on the interior protection of the described annealing pipe steam consumption.
Described liquid cools adopts 0.5%～1% saponification emulsion, and pressure is 0.2Mpa, and consumption is 208L/min.
The linear velocity of described metal guide wheel is 900m/min, and the tension force of described metal guide wheel is 0.2Mpa.The output voltage of described heating power supply is 41.4V～46.5V, and the output current of described heating power supply is 0.73ka～0.77ka.
Described machine barrel is divided into four sections and plastifies, and the temperature of first section plasticizing is 130 ℃ ± 10 ℃, and the temperature of second section plasticizing is 140 ℃ ± 10 ℃, and the temperature of the 3rd section plasticizing is 150 ℃ ± 10 ℃, and the temperature of the 4th section plasticizing is 155 ℃ ± 10 ℃.
The draw ratio of described screw rod is 25:1, and the compression ratio of described screw rod is 2.0:1.
Described mould is half tubular molding tool.
Described segmentation cooling is divided into two sections and carries out water-cooled, first section be in water temperature in 80 ℃, length are 1.0 meters tank, second section is the normal temperature water-cooled.
LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian of the present invention moves back and the continuous annealing apparatus of extrusion process all is contained on the drawing machine between last wire-drawing wheel and spooler, constitute the continuous-output machine group of backguy-annealing-take-up, the line that comes out from last wire-drawing wheel passes through a plurality of metal guide wheels continuously, guide wheel links to each other with direct heating power supply, when annealed wire when the contact of these guide wheels is passed through, lead just has electric current to pass through, the resistance that lead is contacted with itself changes electric energy into the heat energy heating, has realized annealing.Wire-insulating compound plasticizing through the present invention's processing is good, the screw rod load is less, and the insulating surface quality is more excellent; And by rationally joining mould, strict control plastic extruding machine is extruded the temperature of each section, avoids the decomposition that causes lower-molecular substance in the Insulation Material because of overheated, and causing insulate pore or rough phenomenon; The segmentation cooling is taked in insulating exruded back (after the depanning), avoids the generation of internal stress of insulating, thereby has guaranteed the excellent properties of its product.
Embodiment
Below LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian of the present invention is moved back and extrusion process is described in further detail.
LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian of the present invention moves back and extrusion process, comprises three steps, and be respectively: S1, copper cash enter drawing machine and carry out backguy; S2, the copper core of finishing backguy through drawing machine is by the heating of annealing of three metal guide wheels that are connected with heating power supply; S3, the electric wire after the annealing heating pushes with screw rod by plastic extruding machine, and plastics are extruded on the copper core.
Because wire drawing in the past and annealing process is asynchronous carries out, the step that needs and related equipment are more, be unfavorable for it being that the Lian Lalian that adopts moves back production technology here, be that continuous annealing apparatus all is contained on the drawing machine between last wire-drawing wheel and spooler, constitute the continuous-output machine group of backguy-annealing-take-up, the line that comes out from last wire-drawing wheel passes through 3 metal guide wheels continuously, and the linear velocity of metal guide wheel is 900m/min, and tension force is 0.2Mpa.Guide wheel links to each other with direct heating power supply, and the output voltage of heating power supply is 41.4V～46.5V, and output current is 0.73ka～0.77ka.When the copper core the contact of these guide wheels by the time, lead just has electric current to pass through, the resistance that lead is contacted with itself changes electric energy into the heat energy heating, realizes annealing, heating and liquid cools.Wherein annealing is divided into two sections, and at first, the copper core preheats between the first metal guide wheel and the second metal guide wheel, and pre-warmed length is 12m; Secondly, anneal in the annealing pipe of the sealing of copper core between the second metal guide wheel and the 3rd metal guide wheel, the length of annealing is 2m, and the pressure of protection steam is 0.4 ± 0.01Mpa in the annealing pipe, is limited to 20Kg/h on the protection steam consumption; Then, with cooling fluid the copper core is carried out liquid cools, liquid cools adopts 0.5%～1% saponification emulsion, and pressure is 0.2Mpa, and consumption is 208L/min; At last, the moisture on the copper core that will cool off with the mode that dries up for twice dries up.
Plastics extrude and adopt continuously extruded mode to carry out, and push with screw rod by plastic extruding machine, and plastics are extruded on conductor or the cable core as on insulating barrier, screen, sheath and the outer jacket.Comprise: plastic phase, plastics carry out the segmentation plasticizing in the machine barrel of plastic extruding machine, machine barrel is divided into four sections and plastifies, the temperature of first section plasticizing is 130 ℃ ± 10 ℃, the temperature of second section plasticizing is 140 ℃ ± 10 ℃, the temperature of the 3rd section plasticizing is 150 ℃ ± 10 ℃, and the temperature of the 4th section plasticizing is 155 ℃ ± 10 ℃.Formative stage, finishing the plasticizing plastics pushes in mould by screw rod, extrude on the copper core, because the common screw extrusion pressure is excessive, problems such as the plasticizing of meeting generation plastics is bad, can't extrude, so it is 25:1 that extrusion screw rod is selected draw ratio for use, screw compression is than being 2.0:1, select for use half to squeeze the mould of tubular type, it combines having a few of squash type and crowded tubular type, having improved squash type, to be difficult for shortcoming and the extrusion pressure of tuningout big, also solved the shortcoming of the compactness poor (pine cover) of crowded tubular type extrusion plastic layer simultaneously; Be the typing stage at last, the electric wire of finishing extruding carries out the segmentation cooling, because the halogen-free and low-smoke flame-retardant polyolefin material is the crystal polymer thing, the cooling of its crystal polymer thing, may run into crystallisation problems, if adopt quick cooling method, can bring adverse influence to the plastic products tissue, produce internal stress, cause product to produce the phenomenon of be full of cracks in the future.The cooling that the present invention is is to be divided into two sections: first section be in water temperature in 80 ℃, length are 1.0 meters tank, second section is the normal temperature water-cooled.
LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian of the present invention moves back and the continuous annealing apparatus of extrusion process all is contained on the drawing machine between last wire-drawing wheel and spooler, constitute the continuous-output machine group of backguy-annealing-take-up, the line that comes out from last wire-drawing wheel passes through a plurality of metal guide wheels continuously, guide wheel links to each other with direct heating power supply, when annealed wire when the contact of these guide wheels is passed through, lead just has electric current to pass through, the resistance that lead is contacted with itself changes electric energy into the heat energy heating, has realized annealing.Wire-insulating compound plasticizing through the present invention's processing is good, the screw rod load is less, and the insulating surface quality is more excellent; And by rationally joining mould, strict control plastic extruding machine is extruded the temperature of each section, avoids the decomposition that causes lower-molecular substance in the Insulation Material because of overheated, and causing insulate pore or rough phenomenon; The segmentation cooling is taked in insulating exruded back (after the depanning), avoids the generation of internal stress of insulating, thereby has guaranteed the excellent properties of its product.
Below the preferred embodiment of the invention is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all modification that is equal to or replacement under the prerequisite of the invention spirit, the modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (13)
1. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian moves back and extrusion process, it is characterized in that, comprises the steps:
S1, copper cash enter drawing machine and carry out backguy;
S2, the copper core of finishing backguy through drawing machine is by the heating of annealing of three metal guide wheels that are connected with heating power supply;
S3, the electric wire after the annealing heating pushes with screw rod by plastic extruding machine, and plastics are extruded on the copper core.
2. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian according to claim 1 moves back and extrusion process, it is characterized in that, described annealing heating comprises:
S2.1, the copper core preheats between the first metal guide wheel and the second metal guide wheel;
S2.2 anneals in the annealing pipe of copper core between the second metal guide wheel and the 3rd metal guide wheel;
S2.3 carries out liquid cools with cooling fluid to the copper core;
S2.4 dries up the copper core that has cooled off.
3. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian according to claim 1 moves back and extrusion process, it is characterized in that described S3 comprises:
S3.1, plastics carry out the segmentation plasticizing in the machine barrel of plastic extruding machine;
S3.2 finishes the plasticizing plastics and pushes in mould by screw rod, extrudes on the copper core;
S3.3, the electric wire of finishing extruding carries out the segmentation cooling.
4. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian according to claim 2 moves back and extrusion process, it is characterized in that described pre-warmed length is 12m.
5. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian according to claim 2 moves back and extrusion process, it is characterized in that the length of described annealing is 2m.
6. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian according to claim 2 moves back and extrusion process; it is characterized in that; the pressure of protection steam is 0.4 ± 0.01Mpa in the described annealing pipe, is limited to 20Kg/h on the interior protection of the described annealing pipe steam consumption.
7. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian according to claim 2 moves back and extrusion process, it is characterized in that, described liquid cools adopts 0.5%～1% saponification emulsion, and pressure is 0.2Mpa, and consumption is 208L/min.
8. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian according to claim 1 moves back and extrusion process, it is characterized in that the linear velocity of described metal guide wheel is 900m/min, and the tension force of described metal guide wheel is 0.2Mpa.
9. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian according to claim 1 moves back and extrusion process, it is characterized in that the output voltage of described heating power supply is 41.4V～46.5V, and the output current of described heating power supply is 0.73ka～0.77ka.
10. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian according to claim 3 moves back and extrusion process, it is characterized in that, described machine barrel is divided into four sections and plastifies, the temperature of first section plasticizing is 130 ℃ ± 10 ℃, the temperature of second section plasticizing is 140 ℃ ± 10 ℃, the temperature of the 3rd section plasticizing is 150 ℃ ± 10 ℃, and the temperature of the 4th section plasticizing is 155 ℃ ± 10 ℃.
11. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian according to claim 3 moves back and extrusion process, it is characterized in that the draw ratio of described screw rod is 25:1, the compression ratio of described screw rod is 2.0:1.
12. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian according to claim 3 moves back and extrusion process, it is characterized in that described mould is half tubular molding tool.
13. LSOH anti-flaming category-B polyolefin insulation electric wire Lian Lalian according to claim 3 moves back and extrusion process, it is characterized in that, described segmentation cooling is divided into two sections and carries out water-cooled, first section be in water temperature in 80 ℃, length are 1.0 meters tank, second section is the normal temperature water-cooled.
The mould diameter of each passage that stretches, the lengthening coefficient that meets each passage wire rod and equipment slide coefficient, thus production efficiency and product quality guaranteed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102223194A CN103310912A (en) | 2013-06-05 | 2013-06-05 | Continuous winding, continuous unwinding and plastic extruding process for halogen-free low-smoke anti-flaming B-type polyolefin insulated wires |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102223194A CN103310912A (en) | 2013-06-05 | 2013-06-05 | Continuous winding, continuous unwinding and plastic extruding process for halogen-free low-smoke anti-flaming B-type polyolefin insulated wires |
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| CN103310912A true CN103310912A (en) | 2013-09-18 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006083322A (en) * | 2004-09-17 | 2006-03-30 | Riken Technos Corp | Crosslinked thermoplastic flame-retardant resin composition, method for producing the same and its molded article |
| CN101435017A (en) * | 2008-06-11 | 2009-05-20 | 潘勇 | Contact type aluminum wire continuous annealing method and apparatus |
| CN101494105A (en) * | 2009-03-13 | 2009-07-29 | 安徽华能电缆集团有限公司 | Method for manufacturing special cable of wind power plant |
| CN101519719A (en) * | 2009-04-01 | 2009-09-02 | 韩富生 | Method and device for thermally processing sclerotized nonferrous metal wires |
| CN102509577A (en) * | 2011-10-28 | 2012-06-20 | 南洋电缆集团有限公司 | Silane halogen-free flame retardant cross-linking polyolefine cable and manufacturing method thereof |
-
2013
- 2013-06-05 CN CN2013102223194A patent/CN103310912A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006083322A (en) * | 2004-09-17 | 2006-03-30 | Riken Technos Corp | Crosslinked thermoplastic flame-retardant resin composition, method for producing the same and its molded article |
| CN101435017A (en) * | 2008-06-11 | 2009-05-20 | 潘勇 | Contact type aluminum wire continuous annealing method and apparatus |
| CN101494105A (en) * | 2009-03-13 | 2009-07-29 | 安徽华能电缆集团有限公司 | Method for manufacturing special cable of wind power plant |
| CN101519719A (en) * | 2009-04-01 | 2009-09-02 | 韩富生 | Method and device for thermally processing sclerotized nonferrous metal wires |
| CN102509577A (en) * | 2011-10-28 | 2012-06-20 | 南洋电缆集团有限公司 | Silane halogen-free flame retardant cross-linking polyolefine cable and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王卫东: "《电缆工艺技术原理及应用》", 31 January 2013, article "退火工艺、塑料挤出工艺" * |
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Application publication date: 20130918 |