CN204263507U - A kind of polypropylene slab - Google Patents
A kind of polypropylene slab Download PDFInfo
- Publication number
- CN204263507U CN204263507U CN201420696499.XU CN201420696499U CN204263507U CN 204263507 U CN204263507 U CN 204263507U CN 201420696499 U CN201420696499 U CN 201420696499U CN 204263507 U CN204263507 U CN 204263507U
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- CN
- China
- Prior art keywords
- cooling
- mould
- water
- polypropylene
- hole core
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
A kind of polypropylene slab, comprise shaping mould and stock mould, the hole core of mounting strap center cavity between the upper and lower mould of shaping mould, in the center cavity of hole core, cooling water spray gun is installed, 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 arranged on stent struts respectively, and stent struts front end connects water fender, and water-cooling-sprayer II is installed in water fender inboard, establishes 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 be rectangle.This mould structure is simple, and cost is low, easy practice and extension; Utilize the method for this Making mold high-strength polypropylene sheet material, comprise technique simple, improve polypropylene board impact strength successful, cost is low, pollution-free, and the cooling water of ejection does not leak, and does not flow backwards, thus avoids hole core cooling to cause extruding fault.
Description
Technical field
The utility model relates to polypropylene board and manufactures field, particularly a kind of with extruder with the use of polypropylene slab.
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 very large spherocrystal, cause the low poor toughness of polyacrylic impact strength, especially occurs at low temperatures is crisp, and the further utilization of polypropylene (PP) and development are restricted; For improving the deficiency in PP performance, conventional method has two kinds:
1. elastic body toughening modification, 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 modification, its advantage is the heat distortion temperature not only having improved goods impact resistance but also do not reduced goods, even can improve the heat distortion temperature of goods, two aspects of 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 Problems existing is: technique is more complicated, and cost is high.
Summary of the invention
The purpose of this utility model is to provide a kind of polypropylene slab that effectively can improve polypropylene board intensity, manufactures high-strength polypropylene sheet material, to overcome the above-mentioned deficiency existing for prior art with it.
The technical scheme that the utility model is taked is: a kind of polypropylene slab, comprises shaping mould and stock mould, the hole core of mounting strap center cavity between the upper and lower mould of described shaping mould, installs cooling water spray gun in the center cavity of hole core; The upper and lower mould of described stock mould is arranged on stent struts respectively, and stent struts front end connects water fender, and water-cooling-sprayer II is installed in water fender inboard, establishes cooling chamber in described upper and lower mould, installs water-cooling-sprayer I in cooling chamber; Described hole core cross section or be circular or for square or be 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.
Owing to taking technique scheme, a kind of polypropylene slab of the utility model has following beneficial effect:
1. a kind of polypropylene slab of the utility model transforms on the basis of original mould, only need connect water fender on stent struts, inside water fender He in stock mould cooling chamber, water-cooling-sprayer is installed, 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 can not be increased, easy practice and extension;
2. when using a kind of polypropylene slab of the utility model to manufacture high-strength polypropylene sheet material, polypropylene board is designed to spray water inside and outside hollow form simultaneously, when utilizing polypropylene high molecular material at high temperature to carry out melt crystallization, meet with chilling, strand has very fast crystallization rate, spherocrystal is grown up more regularly, number is a lot, small-sized, form the spherocrystal particle of tiny densification, thus obtain the polypropylene articles not needing the high beta-crystalline form content of beta crystal-type nucleater, technique is simple, improve polypropylene board impact strength successful, cost is low, pollution-free.
3., because stationary mould for mould support front end connects water fender, by downward-sloping for mould 5-10 ° during installation, water spray can be avoided to leak, flowing backwards makes core cooling in hole cause to extrude fault.
Be further described below in conjunction with the technical characteristic of drawings and Examples to a kind of polypropylene slab of the utility model.
Accompanying drawing explanation
Fig. 1 is a kind of polypropylene slab structural representation of utility model;
Fig. 2 is the A portion enlarged drawing of Fig. 1;
Fig. 3 is a kind of polypropylene slab using state figure;
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 core, 3-cooling water spray gun, 31-nozzle, 311-little spray orifice, 32-spray chamber, 4-stock mould, 41-cooling chamber, 5-water-cooling-sprayer I, 6-stent struts, 61-water fender, 7-water-cooling-sprayer II, 8-hollow board material, 81-polypropylene, 82-foaming layer, 83-hollow hole, 9-cooling water.
Detailed description of the invention
Embodiment one
A kind of polypropylene slab, comprises shaping mould 1 and stock mould 4, the hole core 2 of mounting strap center cavity between the upper and lower mould of described shaping mould 1, installs cooling water spray gun 3 in the center cavity of hole core;
The upper and lower mould of described stock mould 4 is arranged on upper and lower stent struts 6 respectively, upper and lower stent struts front end all connects water fender 61, water-cooling-sprayer II 7 is all installed in the inboard of upper and lower water fender, establishes cooling chamber 41 in described upper and lower mould, installs water-cooling-sprayer I 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, 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, comprises shaping mould 1 and stock mould 4, the hole core 2 of mounting strap center cavity between the upper and lower mould of described shaping mould 1, installs cooling water spray gun 3 in the center cavity of hole core;
Difference is, 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.
Use a kind of polypropylene slab of the utility model to manufacture the method for high-strength polypropylene sheet material, concrete steps are as follows:
(1) installation mold: the discharging opening a kind of polypropylene slab described in embodiment one or two being arranged on extruder, downward-sloping 5-10 ° of mould, i.e. mold center's line become 5-10 ° of angles with horizontal line; Object is in order to avoid the cooling water of ejection flows backwards, and hole core cooling is caused and extrudes fault;
(2) cooling water spray gun of mould is connected with external high pressure water pump respectively with water-cooling-sprayer;
(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: cooling water spray gun cools the hollow hole water spray in sheet material simultaneously, the outer upper and lower surface water spray of water-cooling-sprayer II pair of sheet material cools, water-cooling-sprayer I pair of stock mould cooling chamber water spray cools, 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 (2)
1. a polypropylene slab, comprises shaping mould (1) and stock mould (4), it is characterized in that:
The hole core (2) of mounting strap center cavity between the upper and lower mould of described shaping mould (1), installs cooling water spray gun (3) in the center cavity of hole core;
The upper and lower mould of described stock mould (4) is arranged on stent struts (6) respectively, stent struts front end connects water fender (61), water-cooling-sprayer II (7) is installed in water fender inboard, establishes cooling chamber (41) in described upper and lower mould, installs water-cooling-sprayer I (5) in cooling chamber;
Described hole core cross section or be circular or for square or be rectangle.
2. a kind of polypropylene slab as claimed in claim 1, it is characterized in that: described cooling water spray gun (3) is round tube shape structure, inner chamber is spray chamber (32), and its front end is coniform nozzle (31), the taper seat of nozzle has little spray orifice (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696499.XU CN204263507U (en) | 2014-11-19 | 2014-11-19 | A kind of polypropylene slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696499.XU CN204263507U (en) | 2014-11-19 | 2014-11-19 | A kind of polypropylene slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204263507U true CN204263507U (en) | 2015-04-15 |
Family
ID=52798403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420696499.XU Withdrawn - After Issue CN204263507U (en) | 2014-11-19 | 2014-11-19 | A kind of polypropylene slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204263507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354282A (en) * | 2014-11-19 | 2015-02-18 | 黎明 | Polypropylene plate die and method for manufacturing high-strength polypropylene panel using same |
-
2014
- 2014-11-19 CN CN201420696499.XU patent/CN204263507U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354282A (en) * | 2014-11-19 | 2015-02-18 | 黎明 | Polypropylene plate die and method for manufacturing high-strength polypropylene panel using same |
| CN104354282B (en) * | 2014-11-19 | 2016-09-14 | 黎明 | A kind of polypropylene slab and the method manufacturing high-strength polypropylene sheet material with it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150415 Effective date of abandoning: 20160914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |