CN104527011A - Production technology for PEI plastic plate - Google Patents
Production technology for PEI plastic plate Download PDFInfo
- Publication number
- CN104527011A CN104527011A CN201410617010.XA CN201410617010A CN104527011A CN 104527011 A CN104527011 A CN 104527011A CN 201410617010 A CN201410617010 A CN 201410617010A CN 104527011 A CN104527011 A CN 104527011A
- Authority
- CN
- China
- Prior art keywords
- pei
- extruded
- screw rod
- extrusion
- shaping
- Prior art date
- 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.)
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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
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/832—Heating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92085—Velocity
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92209—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A production technology for a PEI plastic plate sequentially comprises the following steps of feeding, drying, plastifying extrusion, forming/shaping, feeding and drying. Drying is carried out through circulating hot air; according to plastifying extrusion, through temperature of a machine cylinder and a screw rod, PEI raw materials are balanced and then are continuously extruded; according to forming/shaping, due to spiral extrusion of the screw rod, a mould blank is formed and shaped in a certain shape and is extruded out of a mold; and in the plastifying extrusion process, the machine cylinder is heated in a three-area-divided manner, and a melt can be conveniently formed with a certain viscosity kept, that is, the first area is at the temperature ranging from 320 DEG C to 330 DEG C, the second area is at the temperature ranging from 310 DEG C to 320 DEG C, the third area is at the temperature ranging 300 DEG C to 310 DEG C, a joint is at the temperature ranging from 290 DEG C to 300 DEG C, and the speed of an extrusion screw rod is 8r/min to 10r/min. According to the plastifying extrusion working procedure, the heating manner is changed, so that the traditional mode from low to high is changed, and the mode from high to low is used, so that the temperature is reduced gradually; and the flowing performance of the raw materials is poorer and poorer, and when extrusion is improved, gum blasting cannot happen, that is, the gum overflowing phenomenon is avoided.
Description
Technical field
The present invention relates to PEI technology field, be specifically related to a kind of PEI plastic plate production technology.
Background technology
The extrusion molding of PEI plate is that granular material is joined in the machine barrel of extruder by hopper, under the extruding impetus that material rotates at screw rod, be fed forward and compacting by the rubbing action of machine tube inner wall and screw surface, by heater and the friction preheating of machine barrel outside, fusion plastification under high temperature, condition of high voltage.Then, the screw rod rotated continuously pushes extrusion die fused materials again, and the fused materials extruded from extrusion die becomes required PEI goods through cooling and shaping.The extrusion molding of PEI plate is that granular material is joined in the machine barrel of extruder by hopper, under the extruding impetus that material rotates at screw rod, be fed forward and compacting by the rubbing action of machine tube inner wall and screw surface, by heater and the friction preheating of machine barrel outside, fusion plastification under high temperature, condition of high voltage.Then, the screw rod rotated continuously pushes extrusion die fused materials again, and the fused materials extruded from extrusion die becomes required PEI goods through cooling and shaping.
Summary of the invention
The object of the invention is to the defect overcoming prior art, provide and extrude effective, low in energy consumption PEI plastic plate production technology.
The present invention is achieved in that a kind of PEI plastic plate production technology, comprises the following steps successively: feed intake, and dry, plasticizing is extruded, shaping/sizing
Feed intake, PEI raw material dropped into processing unit (plant),
Dry: carry out drying by 120 DEG C of circulating airs to PEI raw material, drying time, 4-6H, made the water content in PEI raw material be 0.2-0.3%;
Plasticizing is extruded, and by barrel by after PEI fusing evenly, through screw rod, is extruded continuously;
Shaping/sizing is rotary squeezing due to screw rod, makes the improving uniformity of melt with mobility enter head by porous plate, and is extruded mould by after the type embryo forming of definite shape, sizing;
When plasticizing is extruded, point 3rd district heat to machine barrel, and just melt keeps certain viscosity shaping, that is:
One district: 350-360 DEG C
2nd district: 340-350 DEG C
3rd district: 330-340 DEG C
Joint: 320-330 DEG C
Extrusion screw rod speed: 15-18r/min
Wherein, by arranging water circulation cooling device, recirculated water cooling is carried out to the feeding end extruding barrel.
The invention has the beneficial effects as follows:
A kind of PEI plastic plate production technology, comprise the following steps successively: feed intake, dry, plasticizing is extruded, shaping/sizing
Feed intake, PEI raw material dropped into processing unit (plant),
Dry: carry out drying by 120 DEG C of circulating airs to PEI raw material, drying time, 4-6H, made the water content in PEI raw material be 0.2-0.3%;
Plasticizing is extruded, and by barrel by after PEI fusing evenly, through screw rod, is extruded continuously;
Shaping/sizing is rotary squeezing due to screw rod, makes the improving uniformity of melt with mobility enter head by porous plate, and is extruded mould by after the type embryo forming of definite shape, sizing;
When plasticizing is extruded, point 3rd district heat to machine barrel, and just melt keeps certain viscosity shaping, that is:
One district: 350-360 DEG C
2nd district: 340-350 DEG C
3rd district: 330-340 DEG C
Joint: 320-330 DEG C
Extrusion screw rod speed: 8-10r/min.
Operation is extruded in plasticizing of the present invention, by changing to its heating mode, change traditional mode from low to high, use by high mode on earth, temperature reduces gradually, makes the mobility of raw material reach the optimum state of technological requirement, when supercharging is extruded, can not namely there is excessive glue phenomenon by quick-fried glue, reach the object improving seed output and quality simultaneously.
Detailed description of the invention
A kind of PEI plastic plate production technology, comprise the following steps successively: feed intake, dry, plasticizing is extruded, shaping/sizing
Feed intake, PEI raw material dropped into processing unit (plant),
Dry: carry out drying by 120 DEG C of circulating airs to PEI raw material, drying time, 4-6H, made the water content in PEI raw material be 0.2-0.3%;
Plasticizing is extruded, and by barrel by after PEI fusing evenly, through screw rod, is extruded continuously;
Shaping/sizing is rotary squeezing due to screw rod, makes the improving uniformity of melt with mobility enter head by porous plate, and is extruded mould by after the type embryo forming of definite shape, sizing;
When plasticizing is extruded, point 3rd district heat to machine barrel, and just melt keeps certain viscosity shaping, that is:
One district: 350-360 DEG C
2nd district: 340-350 DEG C
3rd district: 330-340 DEG C
Joint: 320-330 DEG C
Extrusion screw rod speed: 15-18r/min
Operation is extruded in plasticizing of the present invention, by changing to its heating mode, change traditional mode from low to high, use by high mode on earth, temperature reduces gradually, makes the mobility of raw material reach the optimum state of technological requirement, when supercharging is extruded, can not namely there is excessive glue phenomenon by quick-fried glue, reach the object improving seed output and quality simultaneously.
Wherein, by arranging water circulation cooling device, recirculated water cooling is carried out to the feeding end extruding barrel.Reach uniform blanking, avoid not blanking or the uneven problem of blanking.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a PEI plastic plate production technology, is characterized in that, comprises the following steps successively: feed intake, and dry, plasticizing is extruded, shaping/sizing, heat preservation hot process;
Feed intake, PEI raw material dropped into processing unit (plant),
Dry: carry out drying by 120 DEG C of circulating airs to PEI raw material, drying time, 4-6H, made the water content in PEI raw material be 0.2-0.3%;
Plasticizing is extruded, and by barrel by after PEI fusing evenly, through screw rod, is extruded continuously;
Shaping/sizing is rotary squeezing due to screw rod, makes the improving uniformity of melt with mobility enter head by porous plate, and is extruded mould by after the type embryo forming of definite shape, sizing;
When plasticizing is extruded, point 3rd district heat to machine barrel, and just melt keeps certain viscosity shaping, that is:
One district: 350-360 DEG C
2nd district: 340-350 DEG C
3rd district: 330-340 DEG C
Joint: 320-330 DEG C
Extrusion screw rod speed: 15-18r/min.
2. a kind of PEI plastic plate production technology according to claim 1, is characterized in that: carry out recirculated water cooling by arranging water circulation cooling device to the feeding end extruding barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410617010.XA CN104527011A (en) | 2014-11-04 | 2014-11-04 | Production technology for PEI plastic plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410617010.XA CN104527011A (en) | 2014-11-04 | 2014-11-04 | Production technology for PEI plastic plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104527011A true CN104527011A (en) | 2015-04-22 |
Family
ID=52842731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410617010.XA Pending CN104527011A (en) | 2014-11-04 | 2014-11-04 | Production technology for PEI plastic plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104527011A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215847A (en) * | 2008-01-15 | 2008-07-09 | 重庆顾地塑胶电器有限公司 | Single layer wall polychloroethylene mute drainpipe |
| US20100055404A1 (en) * | 2008-09-02 | 2010-03-04 | Fujifilm Corporation | Method for producing film and optical film |
| CN101700693A (en) * | 2009-10-19 | 2010-05-05 | 上海市合成树脂研究所 | Thermoplastic polyimide film shaping device |
| CN103753835A (en) * | 2013-11-01 | 2014-04-30 | 深圳市恩欣龙特种工程塑料有限公司 | Equipment and process for production of PEI plastic board |
-
2014
- 2014-11-04 CN CN201410617010.XA patent/CN104527011A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215847A (en) * | 2008-01-15 | 2008-07-09 | 重庆顾地塑胶电器有限公司 | Single layer wall polychloroethylene mute drainpipe |
| US20100055404A1 (en) * | 2008-09-02 | 2010-03-04 | Fujifilm Corporation | Method for producing film and optical film |
| CN101700693A (en) * | 2009-10-19 | 2010-05-05 | 上海市合成树脂研究所 | Thermoplastic polyimide film shaping device |
| CN103753835A (en) * | 2013-11-01 | 2014-04-30 | 深圳市恩欣龙特种工程塑料有限公司 | Equipment and process for production of PEI plastic board |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |
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| RJ01 | Rejection of invention patent application after publication |