CN101722690A - Surface-skinning free foaming PVC plastic board and preparation method thereof - Google Patents
Surface-skinning free foaming PVC plastic board and preparation method thereof Download PDFInfo
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- CN101722690A CN101722690A CN200910227264A CN200910227264A CN101722690A CN 101722690 A CN101722690 A CN 101722690A CN 200910227264 A CN200910227264 A CN 200910227264A CN 200910227264 A CN200910227264 A CN 200910227264A CN 101722690 A CN101722690 A CN 101722690A
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Abstract
The invention relates to a surface-skinning free foaming PVC plastic board and a preparation method thereof, and the upper surface and the lower surface of the free foaming PVC plastic board become dense crust layers. A cooling device is additionally arranged between a three-roll calender and a die in order to suddenly cool the upper and the lower surfaces of the free foaming PVC plastic board after demoulding, thereby forming the dense crust layers on the upper and the lower surfaces. The inner layer of the free foaming PVC plastic board are not cooled, and can normally and freely foam, and the surface-skinning free foaming PVC plastic board is prepared after being calendered by the three-roll calender and cooled by natural air. The method has the advantages of low equipment investment, science and simplicity, low energy consumption, easy manual operation and low manufacture cost. The surface-skinning free foaming PVC plastic board has high compactness and greatly improved surface smoothness, thereby the application range of the free foaming PVC plastic board is expanded.
Description
Technical field
The invention belongs to the plastic products manufacture field, relate to the free foaming PVC plastic board and preparation method thereof that a kind of upper and lower surface that makes the PVC plastic plate of free foaming becomes the surface skining of fine and close skinning cortex.
Background technology
PVC foaming plate in the market mainly contains two big classes: the one, and the PVC foaming plate of co-extrusion, it is to extrude jointly facing to a secondary mould with two extruders.Extruder is extruded the PVC melt that the do not foam lining as sheet material, another extruder then the PVC melt of extrusion foaming as sandwich layer.After mould was extruded, forming upper and lower surface was the hard PVC face that does not foam, and sandwich layer is the PVC interlayer of foaming.This method equipment has high input, and energy resource consumption is many, complex process, and panel density is big, the production cost height.Another kind of is free foaming PVC sheet material, and it is the PVC melt of separate unit extruder to single secondary mould extrusion foaming, owing to all be the foaming melt, just before three-roll press-polishing and air cooling, free wxpansion from inside to outside makes that inside and outside expansion ratio is almost equal for it.This sheet material owing to surface blister become matter soft, easily collapse the hole, scratch, influence its scope of application and life-span.The sheet material of producing like this, case hardness and fineness are all lower, and the scope of application of product is limited greatly, only can be used for case hardness and require lower place, makes the popularization of PVC plastic plate be subjected to certain restriction.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and a kind of method that adopts quenching by cooling device is provided, make the upper and lower surface of free foaming PVC plastic board become free foaming PVC plastic board of fine and close skinning cortex and preparation method thereof, this production method equipment less investment, simple to operate, production efficiency is high, plate surface is effective.
The object of the present invention is achieved like this:
A kind of free foaming PVC plastic board of surface skining comprises the PVC plastic plate, it is characterized in that: the upper and lower surface of PVC plastic plate is fine and close skinning cortex, is the free foaming layer in the middle of upper and lower surface be fine and close skinning cortex.This upper and lower surface is to obtain by the method that quenching is lowered the temperature for fine and close skinning cortex.
A kind of preparation method of free foaming PVC plastic board of surface skining is characterized in that: the preparation method carries out according to following steps:
(1), the good PVC raw material of prescription is put into the hopper of extruder,
(2), open the extruder be warmed to the production temperature,
(3), open the refrigeration machine be used for cooling device and begin refrigeration, open the circulatory system of cooling water pipe simultaneously, the temperature of regulating cooling device is to 10-18 ℃,
(4), the chill roll of open cold radiator cooler, and regulate the gap between two rollers up and down, the gap is greater than prepares to produce more than the thickness 10mm of sheet material,
(5), open three-roller calendar, open hauling machine, open the deburring saw, open the crosscut certificate,
(6), traction sheet material goes into chill roll-felt wrapped roll-hauling machine, the speed of regulating felt wrapped roll is mated with hauling machine,
(7), the gap of regulating chill roll is pressed onto the sheet material upper and lower surface, regulates the chill roll gap till suitable according to the thickness of producing sheet material,
(8), scale, deburring, the crosscut size that becomes to require, be finished product.
Characteristics of the present invention are: equipment investment is few, and science is simple, and energy resource consumption is few, and the workman operates easily, and production cost is low.The surface skining free foaming PVC plastic board that adopts this method to produce had both increased the sheet material packing, and the surface smoothness of free foaming PVC plastic board is improved greatly.Because the improvement of product surface performance has been expanded the scope of application of free foaming PVC plastic board, and has been become new a kind of surface skining free foaming PVC plastic board.
The specific embodiment
Embodiment 1: a kind of free foaming PVC plastic board of surface skining, comprise the PVC plastic plate, it is characterized in that: the upper and lower surface of PVC plastic plate is fine and close skinning cortex 1, is free foaming layer 2 at upper and lower surface for the centre of fine and close skinning cortex 1, this upper and lower surface is to obtain by the method that quenching is lowered the temperature for fine and close skinning cortex 1, at three-roller calendar, hauling machine, the front of deburring saw and crosscut certificate is provided with the chill roll of cooling device, the chill roll of cooling device is two rollers layout up and down, the PVC plastic plate material of heating through extruder at first enters up and down between two chill rolls, and then enter between the felt wrapped roll, by the quenching cooling formation skinning cortex 1 of chill roll.The present invention increases specific cooling device between three-roller calendar and die head, quenching cooling by chill roll, make PVC plastic plate upper and lower surface quenching after depanning of free foaming, produce the skinning of one deck densification in upper and lower surface, and inner sandwich layer is not owing to obtain cooling, still normal free foaming.After three-roll press-polishing and natural air cooling, just made the free foaming PVC plastic board of surface skining.
The preparation method of surface skining free foaming PVC plastic board is undertaken by following processing step:
1, the good PVC raw material of prescription is put into the hopper of extruder,
2, open the extruder that has been warmed to the production temperature,
3, open the refrigeration machine be used for cooling device and begin refrigeration, open the circulatory system of cooling water pipe simultaneously, regulate the temperature to 16 ℃ of cooling device,
4, the chill roll of open cold radiator cooler, and the gap between two rollers is about 20mm about regulating,
5, open three-roller calendar, unlatching hauling machine, unlatching deburring saw, unlatching crosscut certificate,
6, traction sheet material is gone into chill roll-felt wrapped roll-hauling machine, regulates the speed and the hauling machine coupling of felt wrapped roll,
7, the gap of adjusting chill roll is pressed onto the sheet material upper and lower surface, and the gap is 3mm,
8, scale 1220mm * 2440mm, deburring, crosscut are the thick finished product of 3mm.
Embodiment 2: a kind of free foaming PVC plastic board of surface skining, comprise the PVC plastic plate, it is characterized in that: the upper and lower surface of PVC plastic plate is fine and close skinning cortex 1, is free foaming layer 2 at upper and lower surface for the centre of fine and close skinning cortex 1, this upper and lower surface is to obtain by the method that quenching is lowered the temperature for fine and close skinning cortex 1, at three-roller calendar, hauling machine, the front of deburring saw and crosscut certificate is provided with the chill roll of cooling device, the chill roll of cooling device is two rollers layout up and down, the PVC plastic plate material of heating through extruder at first enters up and down between two chill rolls, and then enter between the felt wrapped roll, by the quenching cooling formation skinning cortex 1 of chill roll.
The preparation method of surface skining free foaming PVC plastic board is undertaken by following processing step:
1, the good PVC raw material of prescription is put into the hopper of extruder.
2, open the extruder that has been warmed to the production temperature.
3, open the refrigeration machine be used for cooling device and begin refrigeration, open the circulatory system of cooling water pipe simultaneously, regulate the temperature to 14 ℃ of cooling device.
4, the chill roll of open cold radiator cooler, and the gap between two rollers is about 20mm about regulating.
5, open three-roller calendar, unlatching hauling machine, unlatching deburring saw, unlatching crosscut certificate.
6, traction sheet material is gone into chill roll-felt wrapped roll-hauling machine, regulates the speed and the hauling machine coupling of felt wrapped roll.
7, the gap of adjusting chill roll is pressed onto the sheet material upper and lower surface, and the gap is 4mm.
8, scale 1220mm * 2440mm, deburring, crosscut are the thick finished product of 4mm.
Embodiment 3: a kind of free foaming PVC plastic board of surface skining, comprise the PVC plastic plate, it is characterized in that: the upper and lower surface of PVC plastic plate is fine and close skinning cortex 1, is free foaming layer 2 at upper and lower surface for the centre of fine and close skinning cortex 1, this upper and lower surface is to obtain by the method that quenching is lowered the temperature for fine and close skinning cortex 1, at three-roller calendar, hauling machine, the front of deburring saw and crosscut certificate is provided with the chill roll of cooling device, the chill roll of cooling device is two rollers layout up and down, the PVC plastic plate material of heating through extruder at first enters up and down between two chill rolls, and then enter between the felt wrapped roll, by the quenching cooling formation skinning cortex 1 of chill roll.
The preparation method of surface skining free foaming PVC plastic board is undertaken by following processing step:
1, the good PVC raw material of prescription is put into the hopper of extruder.
2, open the extruder that has been warmed to the production temperature.
3, open the refrigeration machine be used for cooling device and begin refrigeration, open the circulatory system of cooling water pipe simultaneously, regulate the temperature to 12 ℃ of cooling device.
4, the chill roll of open cold radiator cooler, and the gap between two rollers is about 25mm about regulating.
5, open three-roller calendar, unlatching hauling machine, unlatching deburring saw, unlatching crosscut certificate.
6, traction sheet material is gone into chill roll-felt wrapped roll-hauling machine, regulates the speed and the hauling machine coupling of felt wrapped roll.
7, the gap of adjusting chill roll is pressed onto the sheet material upper and lower surface, and the gap is about 6mm.
8, scale 1220mm * 2440mm, deburring, crosscut are the thick finished product of 6mm.
Characteristics of the present invention are: equipment investment is few, and science is simple, and energy resource consumption is few, and the workman operates easily, and production cost is low. The free foaming PVC plastic sheet with surface crusting that adopts the method to produce had both increased the sheet material packing, and the surface smoothness of free foaming PVC plastic board is improved greatly. Because the improvement of product surface performance has been expanded the scope of application of free foaming PVC plastic board, and has been become new a kind of free foaming PVC plastic sheet with surface crusting.
Claims (2)
1. the free foaming PVC plastic board of a surface skining, comprise the PVC plastic plate, it is characterized in that: the upper and lower surface of PVC plastic plate is fine and close skinning cortex (1), is free foaming layer (2) at upper and lower surface for the centre of fine and close skinning cortex (1), this upper and lower surface is to obtain by the method that quenching is lowered the temperature for fine and close skinning cortex (1), at three-roller calendar, hauling machine, the front of deburring saw and crosscut certificate is provided with the chill roll of cooling device, the chill roll of cooling device is two rollers layout up and down, the PVC plastic plate material of heating through extruder at first enters up and down between two chill rolls, and then enter between the felt wrapped roll, by the quenching cooling formation skinning cortex (1) of chill roll.
2. the preparation method of the free foaming PVC plastic board of a surface skining, it is characterized in that: the preparation method carries out according to following steps:
(1), the good PVC raw material of prescription is put into the hopper of extruder,
(2), open the extruder be warmed to the production temperature,
(3), open the refrigeration machine be used for cooling device and begin refrigeration, open the circulatory system of cooling water pipe simultaneously, the temperature of regulating cooling device is to 10-18 ℃,
(4), the chill roll of open cold radiator cooler, and regulate the gap between two rollers up and down, the gap is greater than prepares to produce more than the thickness 10mm of sheet material,
(5), open three-roller calendar, open hauling machine, open the deburring saw, open the crosscut certificate,
(6), traction sheet material goes into chill roll-felt wrapped roll-hauling machine, the speed of regulating felt wrapped roll is mated with hauling machine,
(7), the gap of regulating chill roll is pressed onto the sheet material upper and lower surface, regulates the chill roll gap till suitable according to the thickness of producing sheet material,
(8), scale, deburring, the crosscut size that becomes to require, be finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910227264A CN101722690B (en) | 2009-12-02 | 2009-12-02 | Surface-skinning free foaming PVC plastic board and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910227264A CN101722690B (en) | 2009-12-02 | 2009-12-02 | Surface-skinning free foaming PVC plastic board and preparation method thereof |
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| CN101722690A true CN101722690A (en) | 2010-06-09 |
| CN101722690B CN101722690B (en) | 2012-09-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072358A (en) * | 2013-01-28 | 2013-05-01 | 任四平 | Manufacturing method and equipment for micro-foaming sandwich layer steel-plastic composite plate for structure |
| CN104371213A (en) * | 2014-10-23 | 2015-02-25 | 周修君 | Bifacial-skinning rubber plastic flame-retardant thermal-insulation board and preparation method thereof |
| CN104494087A (en) * | 2014-12-19 | 2015-04-08 | 四川华骄环保科技有限公司 | Extrusion forming mechanism and production system of floor base material |
| CN110517833A (en) * | 2019-08-20 | 2019-11-29 | 国网山东省电力公司滨州供电公司 | A kind of low-k bilayer heterogeneous material cable and preparation method thereof |
| CN112063075A (en) * | 2020-09-11 | 2020-12-11 | 天津金鹏铝材制造有限公司 | Novel foaming wood-plastic composite section bar and preparation method thereof |
| CN113500784A (en) * | 2021-07-09 | 2021-10-15 | 汕头普乐士仪器有限公司 | Method for connecting PVC (polyvinyl chloride) foaming material and plastic parts |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524674A (en) * | 2003-09-16 | 2004-09-01 | 梅曙光 | Self-skinning mild foamed plastic flowered ground cushion and manufacturing method thereof |
| CN101249704A (en) * | 2008-03-31 | 2008-08-27 | 江苏绿源新材料有限公司 | Continuous production method of polyurethane insulation composite slab |
| CN101250906A (en) * | 2008-03-31 | 2008-08-27 | 江苏绿源新材料有限公司 | Polyurethane heat-preserving composition board |
-
2009
- 2009-12-02 CN CN200910227264A patent/CN101722690B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072358A (en) * | 2013-01-28 | 2013-05-01 | 任四平 | Manufacturing method and equipment for micro-foaming sandwich layer steel-plastic composite plate for structure |
| CN103072358B (en) * | 2013-01-28 | 2015-07-01 | 任四平 | Manufacturing method and equipment for micro-foaming sandwich layer steel-plastic composite plate for structure |
| CN104371213A (en) * | 2014-10-23 | 2015-02-25 | 周修君 | Bifacial-skinning rubber plastic flame-retardant thermal-insulation board and preparation method thereof |
| CN104494087A (en) * | 2014-12-19 | 2015-04-08 | 四川华骄环保科技有限公司 | Extrusion forming mechanism and production system of floor base material |
| CN110517833A (en) * | 2019-08-20 | 2019-11-29 | 国网山东省电力公司滨州供电公司 | A kind of low-k bilayer heterogeneous material cable and preparation method thereof |
| CN112063075A (en) * | 2020-09-11 | 2020-12-11 | 天津金鹏铝材制造有限公司 | Novel foaming wood-plastic composite section bar and preparation method thereof |
| CN113500784A (en) * | 2021-07-09 | 2021-10-15 | 汕头普乐士仪器有限公司 | Method for connecting PVC (polyvinyl chloride) foaming material and plastic parts |
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| CN101722690B (en) | 2012-09-26 |
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Granted publication date: 20120926 Termination date: 20121202 |