CN102211393A - Screw rod suitable for machining of chlorinated ploy vinyl chloride (CPVC) - Google Patents
Screw rod suitable for machining of chlorinated ploy vinyl chloride (CPVC) Download PDFInfo
- Publication number
- CN102211393A CN102211393A CN2011101522664A CN201110152266A CN102211393A CN 102211393 A CN102211393 A CN 102211393A CN 2011101522664 A CN2011101522664 A CN 2011101522664A CN 201110152266 A CN201110152266 A CN 201110152266A CN 102211393 A CN102211393 A CN 102211393A
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- screw rod
- section
- cpvc
- machining
- chlorinated
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a screw rod suitable for machining of chlorinated ploy vinyl chloride (CPVC), which belongs to the field of screw rods. The screw rod comprises a screw rod body, wherein a conveying section, a conveying heating section, a preplasticizing section, a plasticizing section, an air exhaust section, an extrusion section and a homogenization section are sequentially arranged on the screw rod body according to the movement direction of a material; and the thread pitch of the plasticizing section is 60mm. Compared with the prior art, the screw rod suitable for the machining of the CPVC has the characteristics of reduction in compression strength and shear strength, difficulty in material burning and the like, so that the screw rod has extremely high popularization and application value.
Description
Technical field
The present invention relates to a kind of screw rod, especially a kind of screw rod that is applicable to CPVC processing.
Background technology
The screw rod of extruder is the vitals in the extruder, is used for the formation plastic sheeting is extruded in the plastic grain plasticizing.Screw rod is the heart of extruder, and the quality of the plastic products of production and productivity ratio all directly depend on the stability of the temperature homogeneity of the melt that machine is extruded and pressure, extrusion capacity, and these parameters all directly depend on the structural behaviour of screw rod.Present employed extruder screw is adding man-hour to CPVC, and the fluxing zone flight pitch is too little, and compressive strength increases, and has increased shear strength, easily thickener.At present, good solution is not also arranged.
Summary of the invention
Technical assignment of the present invention is to provide a kind of CPVC of being applicable to the screw rod of processing at above-mentioned deficiency of the prior art, and the screw rod of this a kind of CPVC of being applicable to processing has and reduced compressive strength, has reduced shear strength, is not easy the characteristics of thickener.
The technical solution adopted for the present invention to solve the technical problems is: it comprises the screw rod body, be disposed with the transportation section, carry bringing-up section, preplasticizing section, fluxing zone, exhaust section, extruding zone and homogenizing zone by the material movement direction on the described screw rod body, the flight pitch of described fluxing zone is 60mm.
The screw rod of a kind of CPVC of being applicable to processing of the present invention is compared with prior art, has following outstanding beneficial effect: reduced compressive strength, reduced shear strength, be not easy thickener, easy to use, improved characteristics such as the quality of the plastic products of producing and productivity ratio.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of screw rod of the CPVC of being applicable to processing;
Description of reference numerals: 1, screw rod body, 2, the transportation section, 3, carry bringing-up section, 4, the preplasticizing section, 5, fluxing zone, 6, exhaust section, 7, extruding zone, 8, homogenizing zone.
The specific embodiment
Explain below the screw rod work with reference to the 1 pair of a kind of CPVC of being applicable to processing of the present invention of Figure of description.
A kind of screw rod that is applicable to CPVC processing of the present invention, its structure comprises screw rod body 1, be disposed with transportation section 2, carry bringing-up section 3, preplasticizing section 4, fluxing zone 5, exhaust section 6, extruding zone 7 and homogenizing zone 8 by the material movement direction on the described screw rod body 1, the flight pitch of described fluxing zone 5 is 60mm.
Under the rotation of screw rod drives, material constantly moves towards screw tip, 2 carry fast through the transportation section, carry out preplasticizing through carrying bringing-up section 3 to enter preplasticizing section 4, enter fluxing zone 5 again and plastify, experience is sheared and plastifying fusion progressively, enter exhaust section 6, the moisture and volatile matter content in the material is discharged in decompression, and material is discharged after the homogenizing along extruding zone 7 and homogenizing zone 8, make the material melt obtain better homogenizing, and avoid producing overheated.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (1)
1. screw rod that is applicable to CPVC processing, comprise the screw rod body, it is characterized in that: be disposed with the transportation section, carry bringing-up section, preplasticizing section, fluxing zone, exhaust section, extruding zone and homogenizing zone by the material movement direction on the described screw rod body, the flight pitch of described fluxing zone is 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101522664A CN102211393A (en) | 2011-06-08 | 2011-06-08 | Screw rod suitable for machining of chlorinated ploy vinyl chloride (CPVC) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101522664A CN102211393A (en) | 2011-06-08 | 2011-06-08 | Screw rod suitable for machining of chlorinated ploy vinyl chloride (CPVC) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102211393A true CN102211393A (en) | 2011-10-12 |
Family
ID=44743042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101522664A Pending CN102211393A (en) | 2011-06-08 | 2011-06-08 | Screw rod suitable for machining of chlorinated ploy vinyl chloride (CPVC) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102211393A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2341795Y (en) * | 1998-10-22 | 1999-10-06 | 北京化工大学 | Conical double screw |
| DE102006011067A1 (en) * | 2006-03-08 | 2007-09-13 | Krauss-Maffei Kunststofftechnik Gmbh | Extruder / injection molding screw |
| CN201151186Y (en) * | 2007-12-13 | 2008-11-19 | 上海申威达机械有限公司 | Conical screw of small cone angle for twin-screw plastic extrusion machine |
| CN201208792Y (en) * | 2008-04-25 | 2009-03-18 | 施金亨 | Energy-saving screw rod |
| CN202123642U (en) * | 2011-06-08 | 2012-01-25 | 济南海富塑胶有限公司 | Screw applicable to processing of CPVC (chlorinated polyvinyl chloride) |
-
2011
- 2011-06-08 CN CN2011101522664A patent/CN102211393A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2341795Y (en) * | 1998-10-22 | 1999-10-06 | 北京化工大学 | Conical double screw |
| DE102006011067A1 (en) * | 2006-03-08 | 2007-09-13 | Krauss-Maffei Kunststofftechnik Gmbh | Extruder / injection molding screw |
| CN201151186Y (en) * | 2007-12-13 | 2008-11-19 | 上海申威达机械有限公司 | Conical screw of small cone angle for twin-screw plastic extrusion machine |
| CN201208792Y (en) * | 2008-04-25 | 2009-03-18 | 施金亨 | Energy-saving screw rod |
| CN202123642U (en) * | 2011-06-08 | 2012-01-25 | 济南海富塑胶有限公司 | Screw applicable to processing of CPVC (chlorinated polyvinyl chloride) |
Non-Patent Citations (1)
| Title |
|---|
| 朱复华: "《螺杆设计及其理论基础》", 31 May 1984 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111012 |