CN104354282B - A kind of polypropylene slab and the method manufacturing high-strength polypropylene sheet material with it - Google Patents
A kind of polypropylene slab and the method manufacturing high-strength polypropylene sheet material with it Download PDFInfo
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- CN104354282B CN104354282B CN201410662975.0A CN201410662975A CN104354282B CN 104354282 B CN104354282 B CN 104354282B CN 201410662975 A CN201410662975 A CN 201410662975A CN 104354282 B CN104354282 B CN 104354282B
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- mould
- cooling
- water
- polypropylene
- sheet material
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 69
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 69
- -1 polypropylene Polymers 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000007921 spray Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 238000007493 shaping process Methods 0.000 claims abstract description 23
- 239000000498 cooling water Substances 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- 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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/904—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using dry calibration, i.e. no quenching tank, e.g. with water spray for cooling or lubrication
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- 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
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
A kind of polypropylene slab, including shaping mould and stock mould, the hole core of band center cavity is installed between the upper and lower mould of shaping mould, cooling water spray gun is installed in the center cavity of hole core, cooling water spray gun is round tube shape structure, inner chamber is spray chamber, and its front end is coniform nozzle, and the taper seat of nozzle has little spray orifice；The upper and lower mould of stock mould is separately mounted on stent struts, and stent struts front end connects water fender, and water-cooling-sprayer II is installed in water fender inboard, sets cooling chamber in upper and lower mould, installs water-cooling-sprayer I in cooling chamber；Described hole core cross section or be circular or for square or for rectangle.This mould structure is simple, low cost, easy practice and extension；The method utilizing this Making mold high-strength polypropylene sheet material, simple including technique, improve polypropylene board impact strength effect obvious, low cost, pollution-free, the cooling water of ejection does not leaks, and does not flows backwards, thus avoids hole core cooling to cause extrusion fault.
Description
Technical field
The present invention relates to polypropylene board manufacture field, particularly to a kind of polypropylene slab and with its manufacture high-strength polypropylene sheet material method.
Background technology
Polypropylene (hereinafter referred to as PP) expanded material is with its excellent heat-resisting and mechanical performance, there is the market demand widely, but polypropylene is crystalline polymer, inside also exists the biggest spherocrystal, cause the low poor toughness of polyacrylic impact strength, especially embrittlement under low temperature, makes being restricted further with development of polypropylene (PP)；For improving the deficiency in PP performance, conventional method has two kinds:
1. elastic body toughening is modified, and they significantly improve the impact flexibility of matrix resin really, but inevitably reduce again rigidity and the intensity of matrix material simultaneously；
2. beta crystal-type nucleater is modified, its advantage is not only to improve goods impact resistance but also do not reduce the heat distortion temperature of goods, even can improve the heat distortion temperature of goods, two aspects making impact resistance and resistance to heat distorsion contradiction are taken into account, when using PP reworked material or PP to be compounded with other plastics, DeGrain.
Said method there is the problem that technique is more complicated, and cost is high.
Summary of the invention
It is an object of the invention to provide a kind of polypropylene slab that can be effectively improved polypropylene board intensity and the method manufacturing high-strength polypropylene sheet material with it, to overcome the above-mentioned deficiency existing for prior art.
The present invention adopts the technical scheme that: a kind of polypropylene slab, including shaping mould and stock mould, installs cooling water spray gun in installing the hole core of band center cavity, the center cavity of hole core between the upper and lower mould of described shaping mould；The upper and lower mould of described stock mould is separately mounted on stent struts, and stent struts front end connects water fender, and water fender inboard is installed the second water-cooling-sprayer, set cooling chamber in described stock mould upper and lower mould, installs the first water-cooling-sprayer in cooling chamber；Described hole core cross section or be circular or for square or for rectangle.
Its further technical scheme is: described cooling water spray gun is round tube shape structure, and inner chamber is spray chamber, and its front end is coniform nozzle, and the taper seat of nozzle has little spray orifice.
The present invention another solution is that a kind of method manufacturing high-strength polypropylene sheet material, described method is to utilize above-mentioned a kind of polypropylene slab, it is arranged on extruder, extruding from shaping mould when melt polypropylene is finalized while mould is shaped into hollow board material, to inside and outside sheet material and stock mould spray water cool down, make the rapid cooling and shaping of sheet material, thus obtain polypropylene or the polypropylene foamed plate of high beta-crystalline form content, specifically comprise the following steps that
(1) installation mold: above-mentioned a kind of polypropylene slab is arranged on the discharging opening of extruder, downward-sloping 5 10 ° of mould, i.e. mold center's line become 5 10 ° of angles with horizontal line；
(2) cooling water spray gun and the water-cooling-sprayer of mould are connected with external high pressure water pump respectively；
(3) when melt polypropylene extrude from shaping mould be finalized mould be shaped into hollow board material time, start high-pressure hydraulic pump to spray water: the hollow hole in sheet material is sprayed water and cooled down by cooling water spray gun simultaneously, second water-cooling-sprayer upper and lower surface outer to sheet material water spray cools down, stock mould cooling chamber water spray is cooled down by the first water-cooling-sprayer, make the rapid cooling and shaping of stock mould sheet material, thus obtain polypropylene or the polypropylene foamed plate of high beta-crystalline form content；
(4) finally cut by width, length.
Owing to taking technique scheme, a kind of polypropylene slab of the present invention and having the advantages that by its method manufacturing high-strength polypropylene sheet material
1. the one polypropylene slab of the present invention is to transform on the basis of original mould, only need to connect water fender on stent struts, water-cooling-sprayer is installed inside water fender and in stock mould cooling chamber, change hole core into hollow tubular structure and cooling water spray gun is installed, then coordinating extruder to use, can produce and obtain high-strength polypropylene sheet material, mould structure is simple, do not change original fitted position, too many cost, easy practice and extension will not be increased；
2. the present invention a kind of polypropylene slab and with its manufacture high-strength polypropylene sheet material method, it is designed to polypropylene board inside and outside hollow form spray water simultaneously, when utilizing polypropylene high molecular material at high temperature to carry out melt crystallization, meet with chilling, strand has crystallization rate quickly, spherocrystal is more regularly grown up, number is a lot, small-sized, form the spherocrystal granule of tiny densification, thus it is obtained without need for the polypropylene articles of the high beta-crystalline form content of beta crystal-type nucleater, technique is simple, improve polypropylene board impact strength effect obvious, low cost, pollution-free.
3. connect water fender due to stationary mould for mould support front end, when mould is installed downward-sloping 5 10 °, thus water spray will not leak, and will not flow backwards and make core cooling in hole cause extrusion fault.
Below in conjunction with the accompanying drawings and the embodiment technical characteristic to a kind of polypropylene slab of the present invention and by its method manufacturing high-strength polypropylene sheet material is further described.
Accompanying drawing explanation
Fig. 1 is the one polypropylene slab structural representation of the present invention；
Fig. 2 is the A portion enlarged drawing of Fig. 1；
Fig. 3 is that a kind of polypropylene slab uses state diagram；
Fig. 4～Fig. 6 is high-strength polypropylene plate construction schematic diagram:
Fig. 4 is circular hollow hole, and Fig. 5 is square hollow hole, and Fig. 6 is rectangle hollow hole；
In figure:
1 shaping mould, 2 hole cores, 3 cooling water spray guns, 31 nozzles, 311 little spray orifices, 32 spray chambers, 4 stock moulds, 41 cooling chambers, 5 first water-cooling-sprayers, 6 stent struts, 61 water fenders, 7 second water-cooling-sprayers, 8 hollow board materials, 81 polypropylene, 82 foaming layers, 83 hollow holes, 9 cooling water.
Detailed description of the invention
Embodiment one
A kind of polypropylene slab, including shaping mould 1 and stock mould 4, installs cooling water spray gun 3 in installing the hole core 2 of band center cavity, the center cavity of hole core between the upper and lower mould of described shaping mould 1；
The upper and lower mould of described stock mould 4 is separately mounted on upper and lower stent struts 6, upper and lower stent struts front end is all connected with water fender 61, the inboard of upper and lower water fender is respectively mounted the second water-cooling-sprayer 7, sets cooling chamber 41 in described upper and lower mould, installs the first water-cooling-sprayer 5 in cooling chamber；
Described hole core cross section is circular, and made sheet material mesopore is circular port.
Described cooling water spray gun 3 is round tube shape structure, and inner chamber is circular spray chamber 32, and its front end is coniform nozzle 31, and the taper seat of nozzle has little spray orifice 311.
Embodiment two
A kind of polypropylene slab, its basic structure is identical with embodiment one, including shaping mould 1 and stock mould 4, installs cooling water spray gun 3 in installing the hole core 2 of band center cavity, the center cavity of hole core between the upper and lower mould of described shaping mould 1；
Except that, described hole core cross section is square or is rectangle, and made sheet material mesopore is square or is rectangle.
As conversion can according to product need be designed to other shapes.
Embodiment three
A kind of method manufacturing high-strength polypropylene sheet material, described method is to utilize a kind of polypropylene slab described in embodiment one or two, it is arranged on extruder, extruding from shaping mould when melt polypropylene is finalized while mould is shaped into hollow board material, to inside and outside sheet material and stock mould spray water cool down, make the rapid cooling and shaping of sheet material, thus obtain polypropylene or the polypropylene foamed plate of high beta-crystalline form content, specifically comprise the following steps that
(1) installation mold: a kind of polypropylene slab described in embodiment one or two is arranged on the discharging opening of extruder, downward-sloping 5 10 ° of mould, i.e. mold center's line become 5 10 ° of angles with horizontal line；Purpose is in order to avoid the cooling aqueous reflux of ejection, makes hole core cooling cause extrusion fault；
(2) cooling water spray gun and the water-cooling-sprayer of mould are connected with external high pressure water pump respectively；
(3) when melt polypropylene extrude from shaping mould be finalized mould be shaped into hollow board material time, start high-pressure hydraulic pump to spray water: the hollow hole in sheet material is sprayed water and cooled down by cooling water spray gun simultaneously, second water-cooling-sprayer upper and lower surface outer to sheet material water spray cools down, stock mould cooling chamber water spray is cooled down by the first water-cooling-sprayer, make the rapid cooling and shaping of stock mould sheet material, thus obtain polypropylene or the polypropylene foamed plate of high beta-crystalline form content；
(4) finally cut by width, length, obtain finished product sheet material.
Claims (3)
1. a polypropylene slab, including shaping mould (1) and stock mould (4), it is characterised in that:
The hole core (2) of band center cavity is installed between the upper and lower mould of described shaping mould (1), cooling water spray gun (3) is installed in the center cavity of hole core；
The upper and lower mould of described stock mould (4) is separately mounted on stent struts (6), stent struts front end connects water fender (61), the second water-cooling-sprayer (7) is installed in water fender inboard, set cooling chamber (41) in the upper and lower mould of described stock mould (4), the first water-cooling-sprayer (5) is installed in cooling chamber；
Described hole core cross section or be circular or for square or for rectangle.
2. a kind of polypropylene slab, it is characterised in that: described cooling water spray gun (3) is round tube shape structure, and inner chamber is spray chamber (32), and its front end is coniform nozzle (31), and the taper seat of nozzle has little spray orifice (311).
3. the method manufacturing high-strength polypropylene sheet material, it is characterized in that: described method is to utilize a kind of polypropylene slab described in claim 1 or 2, it is arranged on extruder, extruding from shaping mould when melt polypropylene is finalized while mould is shaped into hollow board material, to inside and outside sheet material and stock mould spray water cool down, make the rapid cooling and shaping of sheet material, thus obtain polypropylene or the polypropylene foamed plate of high beta-crystalline form content, specifically comprise the following steps that
(1) installation mold: a kind of polypropylene slab described in claim 1 or 2 is arranged on the discharging opening of extruder, downward-sloping 5 10 ° of mould, i.e. mold center's line become 5 10 ° of angles with horizontal line；
(2) cooling water spray gun and the water-cooling-sprayer of mould are connected with external high pressure water pump respectively；
(3) when melt polypropylene extrude from shaping mould be finalized mould be shaped into hollow board material time, start high-pressure hydraulic pump to spray water: the hollow hole in sheet material is sprayed water and cooled down by cooling water spray gun simultaneously, second water-cooling-sprayer upper and lower surface outer to sheet material water spray cools down, stock mould cooling chamber water spray is cooled down by the first water-cooling-sprayer, make the rapid cooling and shaping of stock mould sheet material, thus obtain polypropylene or the polypropylene foamed plate of high beta-crystalline form content；
(4) finally cut by width, length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410662975.0A CN104354282B (en) | 2014-11-19 | 2014-11-19 | A kind of polypropylene slab and the method manufacturing high-strength polypropylene sheet material with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410662975.0A CN104354282B (en) | 2014-11-19 | 2014-11-19 | A kind of polypropylene slab and the method manufacturing high-strength polypropylene sheet material with it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104354282A CN104354282A (en) | 2015-02-18 |
| CN104354282B true CN104354282B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410662975.0A Active CN104354282B (en) | 2014-11-19 | 2014-11-19 | A kind of polypropylene slab and the method manufacturing high-strength polypropylene sheet material with it |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252732B (en) * | 2015-10-21 | 2020-01-24 | 吕昊 | Water-cooling plastic extruding machine and operation method thereof |
| CN108274721B (en) * | 2018-03-30 | 2024-05-31 | 漳州杰安塑料有限公司 | Forming die for three-hole stirring rod |
| CN110744828B (en) * | 2019-10-15 | 2022-02-08 | 浙江迈森科技有限公司 | Production process of car repairing lying plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077157A (en) * | 1993-03-02 | 1993-10-13 | 冯养正 | Vacuum water-cooling quick moulding method of special-shaped plastic material |
| JP2000225629A (en) * | 1998-12-01 | 2000-08-15 | Asahi Chem Ind Co Ltd | Resin molding and its molding method |
| WO2001049474A1 (en) * | 2000-01-07 | 2001-07-12 | Mars Incorporated | Multi-channel cooling die |
| CN102366992A (en) * | 2011-07-27 | 2012-03-07 | 黄石市通达塑料模具有限公司 | High-brightness plastic profile forming die |
| CN204263507U (en) * | 2014-11-19 | 2015-04-15 | 黎明 | A kind of polypropylene slab |
-
2014
- 2014-11-19 CN CN201410662975.0A patent/CN104354282B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077157A (en) * | 1993-03-02 | 1993-10-13 | 冯养正 | Vacuum water-cooling quick moulding method of special-shaped plastic material |
| JP2000225629A (en) * | 1998-12-01 | 2000-08-15 | Asahi Chem Ind Co Ltd | Resin molding and its molding method |
| WO2001049474A1 (en) * | 2000-01-07 | 2001-07-12 | Mars Incorporated | Multi-channel cooling die |
| CN102366992A (en) * | 2011-07-27 | 2012-03-07 | 黄石市通达塑料模具有限公司 | High-brightness plastic profile forming die |
| CN204263507U (en) * | 2014-11-19 | 2015-04-15 | 黎明 | A kind of polypropylene slab |
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| CN104354282A (en) | 2015-02-18 |
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Effective date of registration: 20170420 Address after: Kwun Tong Road in Liuzhou city 545616 No. 52 the Guangxi Zhuang Autonomous Region office 201 Patentee after: Liuzhou City Rui Plastic Technology Co., Ltd. Address before: 545006 Liuzhou City, north of the Yangtze River in the north of the Yangtze River Patentee before: Li Ming |