CN104385544A - Extrusion molding process of POM plate - Google Patents
Extrusion molding process of POM plate Download PDFInfo
- Publication number
- CN104385544A CN104385544A CN201410614536.2A CN201410614536A CN104385544A CN 104385544 A CN104385544 A CN 104385544A CN 201410614536 A CN201410614536 A CN 201410614536A CN 104385544 A CN104385544 A CN 104385544A
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- CN
- China
- Prior art keywords
- zone
- barrel
- pom
- melt
- proparea
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2059/00—Use of polyacetals, e.g. POM, i.e. polyoxymethylene or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of plastic extrusion, and particularly relates to an extrusion molding process of a POM plate. The extrusion molding process is characterized in that the temperature zone in a charging barrel is changed innovatively; the charging barrel is divided into three zones along the charging direction and the output direction, namely a melting zone, a melt conveying zone and a solid conveying zone in sequence; the three zones are heated to the following set temperatures: 180-185 DEG C, 175-180 DEG C and 170-175 DEG C; the material is heated to be molten at an initial state, and the mixing uniformity of the material is high in the moving process; as the temperature of the material is gradually reduced when the charging barrel is subjected to pressurized extrusion, the flowability is decreased, and the phenomena of glue blasting and overflowing in the extruding process are effectively prevented.
Description
Technical field
The present invention relates to plastic extrusion technical field, be specifically related to a kind of POM plate extruding-out process.
Background technology
The Chinese invention patent that application number is " 201110297572.7 " discloses a kind of POM plate extruding-out process, and it comprises step 1, shaping front preparation, comprising: material prepares; Equipment adjusts; Step 2, plasticizing exhaust; Step 3, extrusion molding; Step 4, cutting plate; Step 5, heap plate; Step 6, roasting procedure.
Wherein, the shunting compressional zone of mould is divided into proparea and back zone by charging aperture to extrusion direction, the length in described proparea is 2 times of the length of described back zone, front left district and front-right zone is divided into before described, rear left district and rear right district is divided into after described, described front left district, rear left district, front-right zone and rear right district are heated to following design temperature simultaneously: 165 DEG C ~ 175 DEG C, front left district, 160 DEG C ~ 170 DEG C, rear left district, 165 DEG C ~ 175 DEG C, front-right zone, 160 DEG C ~ 170 DEG C, rear right district, then constant temperature half an hour; When the temperature in described front left district, front-right zone, rear left district and rear right district rises to 3/4ths of each design temperature, each for barrel district is heated to following design temperature simultaneously: 170 DEG C ~ 175 DEG C, solid conveying zone, melting zone 175 DEG C ~ 180 DEG C, 180 DEG C ~ 185 DEG C, melt Conveying district, then constant temperature half an hour; Start main frame, start screw rod, adjusting screw(rod) rotating speed is 3 ~ 4 rpms;
Prior art Problems existing is that surface effect is poor, and degree of mixing is poor.
Therefore, for existing problems of the prior art, need badly and provide a kind of surface effect technology of POM plate extruding-out process that is good, that mix to seem particularly important.
Summary of the invention
The object of the invention is to avoid weak point of the prior art and the POM plate extruding-out process that a kind of surface effect is good, mix is provided.
Goal of the invention of the present invention is achieved through the following technical solutions:
There is provided a kind of POM plate extruding-out process: comprise the steps:
Step 1, shaping front preparation, comprising:
Material prepares: mixed with the part by weight of color masterbatch by 100:3.2 by POM material;
Equipment adjusts: the shunting compressional zone of mould is divided into proparea and back zone by charging aperture to extrusion direction, described proparea, back zone are heated to following design temperature simultaneously: 165 DEG C ~ 175 DEG C, proparea, 160 DEG C ~ 170 DEG C, back zone, then constant temperature half an hour; When the temperature of described proparea, back zone rises to 3/4ths of each design temperature, barrel is divided into three districts along charging and outbound course, be followed successively by melting zone, melt Conveying district, solid conveying zone, following design temperature is heated to above-mentioned three districts: 180 DEG C ~ 185 DEG C, 175 DEG C ~ 180 DEG C, 170 DEG C ~ 175 DEG C, then constant temperature half an hour; Start main frame, start screw rod, adjusting screw(rod) rotating speed is 3 ~ 4 rpms;
Step 2, plasticizing exhaust: the material mixed is added material bin, make material be entered in barrel by hopper and plastify into melt in barrel, the gas that plasticizing produces is discharged by the steam vent that barrel designs;
Step 3, extrusion molding: melt enters mold cavity and from the extrusion molding of mould mouth, adjusting screw(rod) rotating speed is 10 ~ 12 rpms, regulate mould type cavity pressure to make melt be close to mould sizing inwall;
Step 4, cutting plate: the goods of cooling forming are cut;
Step 5, heap plate: the goods of well cutting are positioned on heap grillage;
Step 6, baking: the goods on heap grillage are put into oven cooking cycle.
Wherein, comprise roasting material process, described POM material before input, carries out roasting material with color masterbatch, roasting material temperature degree 70-80 °, 15 ~ 30 minutes time.
Wherein, while described heating cylinder, water flowing preheating is carried out to cooling zone.
Beneficial effect of the present invention:
Adopt POM plate extruding-out process of the present invention, innovation the temperature province in barrel is changed, barrel is divided into three districts along charging and outbound course, be followed successively by melting zone, melt Conveying district, solid conveying zone, following design temperature is heated to above-mentioned three districts: 180 DEG C ~ 185 DEG C, 175 DEG C ~ 180 DEG C, 170 DEG C ~ 175 DEG C, material in an initial condition, heating hot melt, in motion process, the uniformity of mixing of materials is high, and when barrel supercharging is extruded, because the temperature of material declines gradually, mobility weakens, effectively prevent the quick-fried glue occurred in extrusion, excessive glue phenomenon.
Because roasting material program effectively can reduce the moisture of material, improve extrusion efficiency.
Detailed description of the invention
With the following Examples the present invention is described in further detail.
Embodiment 1
A kind of POM plate extruding-out process: comprise the steps:
Step 1, shaping front preparation, comprising:
Material prepares: mixed with the part by weight of color masterbatch by 100:3.2 by POM material;
Equipment adjusts: the shunting compressional zone of mould is divided into proparea and back zone by charging aperture to extrusion direction, described proparea, back zone are heated to following design temperature simultaneously: 165 DEG C ~ 175 DEG C, proparea, 160 DEG C ~ 170 DEG C, back zone, then constant temperature half an hour; When the temperature of described proparea, back zone rises to 3/4ths of each design temperature, barrel is divided into three districts along charging and outbound course, be followed successively by melting zone, melt Conveying district, solid conveying zone, following design temperature is heated to above-mentioned three districts: 180 DEG C, 175 DEG C, 170 DEG C, then constant temperature half an hour; Start main frame, start screw rod, adjusting screw(rod) rotating speed is 3 ~ 4 rpms;
Step 2, plasticizing exhaust: the material mixed is added material bin, make material be entered in barrel by hopper and plastify into melt in barrel, the gas that plasticizing produces is discharged by the steam vent that barrel designs;
Step 3, extrusion molding: melt enters mold cavity and from the extrusion molding of mould mouth, adjusting screw(rod) rotating speed is 10 ~ 12 rpms, regulate mould type cavity pressure to make melt be close to mould sizing inwall;
Step 4, cutting plate: the goods of cooling forming are cut;
Step 5, heap plate: the goods of well cutting are positioned on heap grillage;
Step 6, baking: the goods on heap grillage are put into oven cooking cycle.
Wherein, comprise roasting material process, described POM material before input, carries out roasting material with color masterbatch, roasting material temperature degree 70-80 °, 15 ~ 30 minutes time.
Wherein, while described heating cylinder, water flowing preheating is carried out to cooling zone.
Adopt POM plate extruding-out process of the present invention, innovation the temperature province in barrel is changed, barrel is divided into three districts along charging and outbound course, be followed successively by melting zone, melt Conveying district, solid conveying zone, following design temperature is heated to above-mentioned three districts: 180 DEG C ~ 185 DEG C, 175 DEG C ~ 180 DEG C, 170 DEG C ~ 175 DEG C, material in an initial condition, heating hot melt, in motion process, the uniformity of mixing of materials is high, and when barrel supercharging is extruded, because the temperature of material declines gradually, mobility weakens, effectively prevent the quick-fried glue occurred in extrusion, excessive glue phenomenon.
Embodiment 2
A kind of POM plate extruding-out process: comprise the steps:
Step 1, shaping front preparation, comprising:
Material prepares: mixed with the part by weight of color masterbatch by 100:3.2 by POM material;
Equipment adjusts: the shunting compressional zone of mould is divided into proparea and back zone by charging aperture to extrusion direction, described proparea, back zone are heated to following design temperature simultaneously: 165 DEG C ~ 175 DEG C, proparea, 160 DEG C ~ 170 DEG C, back zone, then constant temperature half an hour; When the temperature of described proparea, back zone rises to 3/4ths of each design temperature, barrel is divided into three districts along charging and outbound course, be followed successively by melting zone, melt Conveying district, solid conveying zone, following design temperature is heated to above-mentioned three districts: 185 DEG C, 175 DEG C, 170 DEG C, then constant temperature half an hour; Start main frame, start screw rod, adjusting screw(rod) rotating speed is 8 ~ 10 rpms;
Step 2, plasticizing exhaust: the material mixed is added material bin, make material be entered in barrel by hopper and plastify into melt in barrel, the gas that plasticizing produces is discharged by the steam vent that barrel designs;
Step 3, extrusion molding: melt enters mold cavity and from the extrusion molding of mould mouth, adjusting screw(rod) rotating speed is 10 ~ 12 rpms, regulate mould type cavity pressure to make melt be close to mould sizing inwall;
Step 4, cutting plate: the goods of cooling forming are cut;
Step 5, heap plate: the goods of well cutting are positioned on heap grillage;
Step 6, baking: the goods on heap grillage are put into oven cooking cycle.
Wherein, comprise roasting material process, described POM material before input, carries out roasting material with color masterbatch, roasting material temperature degree 70-80 °, 15 ~ 30 minutes time.
Wherein, while described heating cylinder, water flowing preheating is carried out to cooling zone.
Embodiment 3
A kind of POM plate extruding-out process: comprise the steps:
Step 1, shaping front preparation, comprising:
Material prepares: mixed with the part by weight of color masterbatch by 100:3.2 by POM material;
Equipment adjusts: the shunting compressional zone of mould is divided into proparea and back zone by charging aperture to extrusion direction, described proparea, back zone are heated to following design temperature simultaneously: 165 DEG C ~ 175 DEG C, proparea, 160 DEG C ~ 170 DEG C, back zone, then constant temperature half an hour; When the temperature of described proparea, back zone rises to 3/4ths of each design temperature, barrel is divided into three districts along charging and outbound course, be followed successively by melting zone, melt Conveying district, solid conveying zone, following design temperature is heated to above-mentioned three districts: 183 DEG C, 176 DEG C, 173 DEG C, then constant temperature half an hour; Start main frame, start screw rod, adjusting screw(rod) rotating speed is 3 ~ 4 rpms;
Step 2, plasticizing exhaust: the material mixed is added material bin, make material be entered in barrel by hopper and plastify into melt in barrel, the gas that plasticizing produces is discharged by the steam vent that barrel designs;
Step 3, extrusion molding: melt enters mold cavity and from the extrusion molding of mould mouth, adjusting screw(rod) rotating speed is 10 ~ 12 rpms, regulate mould type cavity pressure to make melt be close to mould sizing inwall;
Step 4, cutting plate: the goods of cooling forming are cut;
Step 5, heap plate: the goods of well cutting are positioned on heap grillage;
Step 6, baking: the goods on heap grillage are put into oven cooking cycle.
Wherein, comprise roasting material process, described POM material before input, carries out roasting material with color masterbatch, roasting material temperature degree 70-80 °, 15 ~ 30 minutes time.
Wherein, while described heating cylinder, water flowing preheating is carried out to cooling zone.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although be explained in detail the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (3)
1. a POM plate extruding-out process: comprise the steps:
Step 1, shaping front preparation, comprising:
Material prepares: mixed with the part by weight of color masterbatch by 100:3.2 by POM material;
Equipment adjusts: the shunting compressional zone of mould is divided into proparea and back zone by charging aperture to extrusion direction, described proparea, back zone are heated to following design temperature simultaneously: 165 DEG C ~ 175 DEG C, proparea, 160 DEG C ~ 170 DEG C, back zone, then constant temperature half an hour; When the temperature of described proparea, back zone rises to 3/4ths of each design temperature, barrel is divided into three districts along charging and outbound course, be followed successively by melting zone, melt Conveying district, solid conveying zone, following design temperature is heated to above-mentioned three districts: 180 DEG C ~ 185 DEG C, 175 DEG C ~ 180 DEG C, 170 DEG C ~ 175 DEG C, then constant temperature half an hour; Start main frame, start screw rod, adjusting screw(rod) rotating speed is 3 ~ 4 rpms;
Step 2, plasticizing exhaust: the material mixed is added material bin, make material be entered in barrel by hopper and plastify into melt in barrel, the gas that plasticizing produces is discharged by the steam vent that barrel designs;
Step 3, extrusion molding: melt enters mold cavity and from the extrusion molding of mould mouth, adjusting screw(rod) rotating speed is 10 ~ 12 rpms, regulate mould type cavity pressure to make melt be close to mould sizing inwall;
Step 4, cutting plate: the goods of cooling forming are cut;
Step 5, heap plate: the goods of well cutting are positioned on heap grillage;
Step 6, baking: the goods on heap grillage are put into oven cooking cycle.
2. a kind of POM plate extruding-out process according to claim 1, is characterized in that: comprise roasting material process, and described POM material before input, carries out roasting material with color masterbatch, roasting material temperature degree 70-80 °, 15 ~ 30 minutes time.
3. a kind of POM plate extruding-out process according to claim 1, is characterized in that: carry out water flowing preheating to cooling zone while described heating cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614536.2A CN104385544A (en) | 2014-11-03 | 2014-11-03 | Extrusion molding process of POM plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614536.2A CN104385544A (en) | 2014-11-03 | 2014-11-03 | Extrusion molding process of POM plate |
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| Publication Number | Publication Date |
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| CN104385544A true CN104385544A (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410614536.2A Pending CN104385544A (en) | 2014-11-03 | 2014-11-03 | Extrusion molding process of POM plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967274A (en) * | 2017-04-28 | 2017-07-21 | 东莞市耐格美塑胶制品有限公司 | A kind of enhanced POM plate material and preparation method thereof |
-
2014
- 2014-11-03 CN CN201410614536.2A patent/CN104385544A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967274A (en) * | 2017-04-28 | 2017-07-21 | 东莞市耐格美塑胶制品有限公司 | A kind of enhanced POM plate material and preparation method thereof |
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Application publication date: 20150304 |