CN202862672U - Three-layer co-extrusion MPP (Massively Parallel Processing) pipe with high light and low friction - Google Patents
Three-layer co-extrusion MPP (Massively Parallel Processing) pipe with high light and low friction Download PDFInfo
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- CN202862672U CN202862672U CN201220436721.3U CN201220436721U CN202862672U CN 202862672 U CN202862672 U CN 202862672U CN 201220436721 U CN201220436721 U CN 201220436721U CN 202862672 U CN202862672 U CN 202862672U
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Abstract
The utility model relates to an industrial pipe and in particular to a three-layer co-extrusion MPP (Massively Parallel Processing) pipe with high light and low friction. The three-layer co-extrusion MPP pipe comprises an outer layer, a middle layer and an inner layer which are fused together in turn by hot melting. The three-layer co-extrusion MPP pipe is characterized in that the outer layer, the middle layer and the inner layer are all of a tubular solid structure; the outer layer is a modified polypropylene material structure layer with excellent toughness; the middle layer is a beta-PP (Polypropylene) material structure layer; and the inner layer is a nylon-modified polypropylene material structure layer. The three-layer co-extrusion MPP pipe with high light and low friction is high in tensile strength and ring stiffness, good in heat resistance and low in friction coefficient and meets the requirement of non-excavation construction.
Description
Technical field
The utility model relates to a kind of industrial tubing, relates in particular to a kind of Gao Guang, the three-layer co-extruded MPP tubing of low friction.
Background technology
The tubing in power cable sheath field is generally HDPE pipe and common MPP power pipe at present, and wherein there is following shortcoming in the HDPE pipe: 1, poor heat resistance, dimension card can only reach about 80 degree; 2, hot strength is low, about 18～20Mpa; 3, elasticity modulus of materials is low, and about 800Mpa causes pipe ring stiffness on the low side thus; 4, the material friction coefficient is relatively high, is 0.3～0.33, causes thus the resistance of tubing when wearing cable relatively large, the impact construction.
Common MPP pipe is compared and had following shortcoming: 1, heat resistance is relatively low, about 150 degree of vicat temperature; 2, hot strength is relatively low, for greater than 25MPa; 3, elasticity modulus of materials is relatively low, is 1000～1000Mpa, and pipe ring stiffness is on the low side to some extent; 4, the material friction coefficient is relatively high, is 0.3～0.33.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of hot strength high, and ring stiffness is high, good heat resistance, and coefficient of friction is low and satisfy the Gao Guang of non-excavating construction requirement, the three-layer co-extruded MPP tubing of low friction.
The utility model is achieved in that a kind of Gao Guang, the three-layer co-extruded MPP tubing of low friction, comprise skin, intermediate layer and internal layer, merge successively by hot melt between described skin, intermediate layer and the internal layer, it is characterized in that: described skin, intermediate layer and internal layer are the tubulose solid construction, described skin is the modified polypropylene material structure sheaf of good-toughness, the intermediate layer is β-PP(β modification HOPP) the material structure layer, internal layer is modified nylon polypropylene material structure sheaf.
Described skin is the planomural structure sheaf, and thickness is 1-15mm.
Described intermediate layer is the planomural structure sheaf, and thickness is 3-20mm.
Described internal layer is the planomural structure sheaf, and thickness is 0.5-3mm.
The utility model Gao Guang, the three-layer co-extruded MPP tubing of low friction have the following advantages: 1, excellent heat resistance, vicat temperature can reach more than 160 degree, and the internal layer that contacts with cable especially because adopting the modified nylon polypropylene material, has improved dimension card heat resisting temperature greatly; 2, hot strength is higher, greater than 28Mpa, because adopting β-PP(β modification HOPP in the intermediate layer), the tubing stretching resistance improves greatly, can satisfy more remote construction requirement; 3, elasticity modulus of materials is high, can reach more than the 1300Mpa, adopts β-PP because of the intermediate layer, and the ring stiffness of tubing obviously improves, and the critical external compressive resistance ability is stronger; 4, coefficient of friction is low, and because the internal layer that contacts with cable adopts the modified nylon polypropylene material, so the pipe material inner wall coefficient of friction is lower than 0.2, greatly reduces the resistance of cable when wearing cable, improved efficiency of construction.
Description of drawings
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the overall structure schematic diagram of the utility model Gao Guang, the three-layer co-extruded MPP tubing of low friction.
The specific embodiment
Come the utility model is described in detail below in conjunction with specific embodiment.
See also shown in Figure 1, a kind of Gao Guang described in the utility model, the three-layer co-extruded MPP tubing of low friction, comprise skin 1, intermediate layer 2 and internal layer 3, merge successively by hot melt between described outer 1, intermediate layer 2 and the internal layer 3, described outer 1, intermediate layer 2 and internal layer 3 are the tubulose solid construction, described outer 1 is the modified polypropylene material structure sheaf of good-toughness, and intermediate layer 2 is the beta-PP material structure sheaf, and internal layer 3 is modified nylon polypropylene material structure sheaf.
Outer 1 is the planomural structure sheaf, and thickness is 1-15mm, and outer 1 adopts the modified polypropylene material of good-toughness to make, and can improve the ability of anti-external impact; Intermediate layer 2 is the planomural structure sheaf, and thickness is 3-20mm, and intermediate layer 2 adopts beta-PP material to make, and can improve ring stiffness, hot strength, the dimension card heat resistance of tubing; Internal layer 3 is the planomural structure sheaf, and thickness is 0.5-3mm, and internal layer 3 adopts the modified nylon polypropylene material, can improve the tubing heat resistance, reduces the pipe material inner wall coefficient of friction, improve the pipe material inner wall glossiness.
The production method of the utility model Gao Guang, the three-layer co-extruded MPP tubing of low friction the steps include:
Step 1, extrude the intermediate layer with the A extruder;
Step 2, extrude skin with the B extruder;
Step 4, with trilaminate material under the effect of high temperature, high pressure, by common composite die, be fused into an integral body with three layers, behind vacuum, cooling and shaping, form the smooth three layers of smooth tubing of inside and outside wall.
Claims (4)
1. a high light, the three-layer co-extruded MPP tubing of low friction, comprise skin, intermediate layer and internal layer, merge successively by hot melt between described skin, intermediate layer and the internal layer, it is characterized in that: described skin, intermediate layer and internal layer are the tubulose solid construction, described skin is the modified polypropene structure sheaf of good-toughness, the intermediate layer is β-PP structure sheaf, and internal layer is modified nylon polypropylene structure sheaf.
2. Gao Guang according to claim 1, the three-layer co-extruded MPP tubing of low friction, it is characterized in that: described skin is the planomural structure sheaf, thickness is 1-15mm.
3. Gao Guang according to claim 1, the three-layer co-extruded MPP tubing of low friction, it is characterized in that: described intermediate layer is the planomural structure sheaf, thickness is 3-20mm.
4. Gao Guang according to claim 1, the three-layer co-extruded MPP tubing of low friction, it is characterized in that: described internal layer is the planomural structure sheaf, thickness is 0.5-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220436721.3U CN202862672U (en) | 2012-08-30 | 2012-08-30 | Three-layer co-extrusion MPP (Massively Parallel Processing) pipe with high light and low friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220436721.3U CN202862672U (en) | 2012-08-30 | 2012-08-30 | Three-layer co-extrusion MPP (Massively Parallel Processing) pipe with high light and low friction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202862672U true CN202862672U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220436721.3U Expired - Lifetime CN202862672U (en) | 2012-08-30 | 2012-08-30 | Three-layer co-extrusion MPP (Massively Parallel Processing) pipe with high light and low friction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202862672U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837454A (en) * | 2012-08-30 | 2012-12-26 | 广东威立瑞科技有限公司 | Highlight and low-friction three-layer coextruded MPP (Modified Polypropylene) pipe and production method thereof |
| CN104795781A (en) * | 2015-04-30 | 2015-07-22 | 赵朝端 | Low-friction modified polypropylene/glass fiber reinforced plastic composite electrical tube and manufacturing method thereof |
-
2012
- 2012-08-30 CN CN201220436721.3U patent/CN202862672U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837454A (en) * | 2012-08-30 | 2012-12-26 | 广东威立瑞科技有限公司 | Highlight and low-friction three-layer coextruded MPP (Modified Polypropylene) pipe and production method thereof |
| CN104795781A (en) * | 2015-04-30 | 2015-07-22 | 赵朝端 | Low-friction modified polypropylene/glass fiber reinforced plastic composite electrical tube and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |
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| CX01 | Expiry of patent term |