CN103350492A - Equipment for vertically extruding ultra-high molecular weight polyethylene - Google Patents
Equipment for vertically extruding ultra-high molecular weight polyethylene Download PDFInfo
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- CN103350492A CN103350492A CN 201310318924 CN201310318924A CN103350492A CN 103350492 A CN103350492 A CN 103350492A CN 201310318924 CN201310318924 CN 201310318924 CN 201310318924 A CN201310318924 A CN 201310318924A CN 103350492 A CN103350492 A CN 103350492A
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Abstract
The invention relates to equipment for vertically extruding ultra-high molecular weight polyethylene. The equipment is characterized in that 2-8 single-screw extruders are simultaneously feed molds and are distributed in a horizontal circumference manner; the included angles between two adjacent extruders are equal to one another. Under the action of the extrusion molds, extruded material vertically grows upwards and is cooled down to be made into tubular products. The equipment is also characterized by comprising a machine frame (1), a perforated plate (2), flow passages (3), 90-degree elbows (4), an external mold (5), an internal mold (6), a pressing mold (7), an internal mold cooling water trough (8), an external mold cooling water trough (9), a base plate (10) and a plurality of single-screw extruders, wherein each single-screw extruder comprises a heater (11), a motor (12), a screw (13) and a hopper (14). The equipment has the advantages that large-diameter pipes of which the walls have different thicknesses between 10 mm to 50 mm can be obtained through the co-extrusion method of the extruders; the deficiency that thick-walled pipes can not be extruded through a horizontal-extrusion method is made up.
Description
Technical field
The present invention relates to a kind of ultra-high molecular weight polyethylene and extrude equipment, particularly a kind of polyethylene with HMW 1,500,000-1,050 ten thousand is vertically extruded equipment as what raw material were produced the thick tube wall tubing of heavy caliber.
Background technology
What ultra-high molecular weight polyethylene (UHMWPE) was high relatively minute gives its extremely excellent performance in quality: 1. fabulous environmental stress crack resistance, be 200 times of common high density polyethylene (HDPE) (HDPE), the 5-10 of common plastics doubly; 2. extremely strong wearability occupies the plastics first place, be common plastics 5-7 doubly, the 7-10 of steel pipe doubly; 3. high resistance to impact, impact strength is the highest in existing plastics, even still keep quite high impact strength under-70 ℃ of conditions; 4. excellent self lubricity is suitable with polytetrafluoroethylene (PTFE) (PTFE); 5. good chemical stability, electrical insulating property, fatigue durability and weatherability; 6. nontoxic, do not absorb water, density is little, do not adhere to, antistatic, inhale noise, and be easy to machining, pigmentable.Therefore can say that UHMWPE is existing top quality engineering plastics.Compare with metal pipe material with other plastic pipe with its tubing of making, all has in many aspects obvious advantage, these good characteristics make ultra-high molecular weight polyethylene have important use value, therefore, the goods equipment research of production and processing ultra-high molecular weight polyethylene becomes the heat subject of plastics circle and industrial circle always.
At present, ultrahigh molecular weight polyethylene tubing extrude the form that most employing separate unit extruder level is extruded, because ultra-high molecular weight polyethylene has poor fluidity and the few characteristics of separate unit extruder extrusion capacity, the form that level is extruded can not be extruded the tubing of large-diameter pipe wall thickness, and rate of extrusion is slow, and production efficiency is low.
Summary of the invention
The object of the invention is to overcome above shortcomings in the horizontal extruding technology, and a kind of reasonable in design is provided, easy to use, production efficiency is high, extrudes effective ultra-high molecular weight polyethylene and vertically extrudes equipment.
A technical problem to be solved by this invention is: provide a kind of can satisfy the thick tube wall tube extrusion of heavy caliber amount method.
For solving the problems of the technologies described above, the technical solution used in the present invention is: utilize the simultaneously method of feed of 2-8 platform single-screw bar extruder, can guarantee has enough extrusion capacities to mould, and overcome the poor fluidity defective of ultra-high molecular weight polyethylene material melt, and greatly lowered the too huge pressure loss that causes because of system.
A technical problem to be solved by this invention is: provide a kind of material that guarantees to extrude the method that is evenly distributed on the requirement of mould inner mould circumference.
For solving the problems of the technologies described above, the technical solution used in the present invention is: to many horizontal circle distribution of single screw extrusion machine, the angle of arbitrary neighborhood two extruders equates mutually.
A technical problem to be solved by this invention is: owing to adopt simultaneously feed of many single-screw bar extruders, provide a kind of method that will guarantee that each extruder extrusion pressure is stable.
For solving the problems of the technologies described above, the technical solution used in the present invention is: because the pressure of each extruder extruded material is indefinite, prevent that the excessive mould that causes of somewhere pressure from damaging, need the speed of every extruder extruded material of monitoring and regulate in real time the extrusion pressure of every extruder.
A technical problem to be solved by this invention is: the straight line that provides a kind of spiral squeezing form with material to change into material is extruded the method for form.
For solving the problems of the technologies described above, the technical solution used in the present invention is: be connected with porous plate between the extruded stock mouth of extruder and runner.
Description of drawings
Fig. 1 is that the ultra-high molecular weight polyethylene of this patent is vertically extruded the equipment schematic diagram.
Fig. 2 is the top view that the ultra-high molecular weight polyethylene of this patent is vertically extruded equipment.
The specific embodiment
Below in conjunction with accompanying drawing and by embodiment this patent is described in further detail, following examples are to the explanation of this patent and this patent is not limited to following examples.
Embodiment
As shown in Figure 1, the vertical extrusion system equipment of super high molecular weight mainly comprises frame (1), porous plate (2), runner (3), 90
0Elbow (4), external mold (5), internal mold (6), pressing mold (7), internal mold bosh (8), external mold bosh (9), base plate (10) and many single screw extrusion machines form.
Be Φ 800mm producing caliber, during the navigation channel desilting steel-plastics composite pipe of wall thickness about 20mm, the internal mold that needs custom mold is Φ 780 mm, and adventitia is Φ 810mm, and is installed in the center of frame with bolt.Its extrusion step is: the charge door (14) of the ultra-high molecular weight polyethylene raw material being sent into simultaneously single screw extrusion machine, passing through successively motor (12) provides power to carry and compacting to screw rod (13), after heater (11) heating, through porous plate (2), runner (3) and 90
0Elbow (4) is extruded material and is supplied in mould, that material increases vertically upward under the acting in conjunction of extrusion pressure and extrusion die, through internal mold bosh (8) and external mold bosh (9) solidification tube, tubing is complete with basic curing when arriving the upper port of mould, then applies back pressure to extruded material.
In sum, this patent has following advantage: be that 500mm-2000mm, pipe thickness scope are the ultrahigh molecular weight polyethylene tubing of 10mm-50mm applicable to extruding the caliber scope, remedied the shortcoming that separate unit extruder extrusion capacity in the horizontal extrusion method is extruded such tubing not; The matching die of this equipment is simple in structure, easy to use, and reduces its cost of investment, can reduce the manufacturing cost of tubing; Simultaneously, the linear velocity scope that this equipment can adopt the method for 2-8 platform extruder co-extrusion can reach extruding pipe material is 5mm-100mm, improves rate of extrusion.It is a kind of easy to use that this patent provides, and production efficiency is high, extrudes the vertical extrusion method of effective ultra-high molecular weight polyethylene, and extruding pipe material is still kept the good characteristics such as the resistance to impact, frost resistance, compression resistance of ultra-high molecular weight polyethylene.
Claims (6)
1. ultra-high molecular weight polyethylene is vertically extruded equipment, by frame (1), porous plate (2), runner (3), 90
0Elbow (4), external mold (5), internal mold (6), pressing mold (7), internal mold bosh (8), external mold bosh (9), base plate (10) and many single screw extrusion machines form, and extruder is connected 90 with runner (3) through porous plate (2)
0Elbow (4) is the material that level is extruded to be transformed into vertically extrude, pressing mold (7) is between mould external mold (5) and the mould inner mould (6), mould external mold (5) and mould inner mould (6) are fixed on the base plate (10) with high-strength bolt, have respectively internal mold bosh (8) and external mold bosh (9) to carry out the cooling and shaping extruding pipe material at external mold (5) and internal mold (6).
2. ultra-high molecular weight polyethylene according to claim 1 is vertically extruded equipment, and single-screw bar extruder wherein is characterized as: be made of heater (11), motor (12), screw rod (13), loading hopper (14).
3. ultra-high molecular weight polyethylene according to claim 1 is vertically extruded equipment, many single-screw bar extruders wherein are characterized as: available 2-8 platform does not wait the extruder of number of units, it is horizontally disposed that its putting position is circumference, and the angle of arbitrary neighborhood two extruders equates mutually.
4. ultra-high molecular weight polyethylene according to claim 1 is vertically extruded equipment, and wherein said tubing goods are characterized as: caliber is that 500mm-2000mm does not wait, pipe thickness is the tubing of 10mm-50mm.
5. ultra-high molecular weight polyethylene according to claim 1 is vertically extruded equipment, wherein said porous plate feature: be the rectilinear motion that the screw of material is converted into material.
6. ultra-high molecular weight polyethylene according to claim 1 is vertically extruded equipment, and the linear velocity scope that can guarantee extruding pipe material is the 5mm-100mm per minute, pressure limit 10MPa-50 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310318924 CN103350492A (en) | 2013-07-27 | 2013-07-27 | Equipment for vertically extruding ultra-high molecular weight polyethylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310318924 CN103350492A (en) | 2013-07-27 | 2013-07-27 | Equipment for vertically extruding ultra-high molecular weight polyethylene |
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| Publication Number | Publication Date |
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| CN103350492A true CN103350492A (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201310318924 Pending CN103350492A (en) | 2013-07-27 | 2013-07-27 | Equipment for vertically extruding ultra-high molecular weight polyethylene |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881870A (en) * | 2014-11-25 | 2016-08-24 | 新疆天业（集团）有限公司 | Rotary porous plate device |
| CN108705730A (en) * | 2018-06-22 | 2018-10-26 | 康命源（安徽）塑料科技发展股份有限公司 | A kind of big mouth plastic conduit forming method of high intensity and former |
-
2013
- 2013-07-27 CN CN 201310318924 patent/CN103350492A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881870A (en) * | 2014-11-25 | 2016-08-24 | 新疆天业（集团）有限公司 | Rotary porous plate device |
| CN108705730A (en) * | 2018-06-22 | 2018-10-26 | 康命源（安徽）塑料科技发展股份有限公司 | A kind of big mouth plastic conduit forming method of high intensity and former |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131016 |