CN101722643A - Method for manufacturing one-step formed composite foamed plastic formwork - Google Patents
Method for manufacturing one-step formed composite foamed plastic formwork Download PDFInfo
- Publication number
- CN101722643A CN101722643A CN200910259567A CN200910259567A CN101722643A CN 101722643 A CN101722643 A CN 101722643A CN 200910259567 A CN200910259567 A CN 200910259567A CN 200910259567 A CN200910259567 A CN 200910259567A CN 101722643 A CN101722643 A CN 101722643A
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- plastic formwork
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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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a method for manufacturing a one-step formed composite foamed plastic formwork which comprises an upper surface layer, a lower surface layer and a core layer. The method comprises the following steps of: firstly, filling a core layer raw material into a high-speed mixing machine to perform mixing; secondly, sending the mixed core layer raw material into a double-screw extruder by a feeding machine, extruding the extruded material into a core layer extruder, and simultaneously sending surface layer raw materials into a plastic extruder; and thirdly, extruding the extruded core layer raw material, the upper surface layer raw material and the lower surface layer raw material into a confluence distributor, molding the materials in a mold, and performing three-roller press finishing or vacuum shaping, cooling and cutting to obtain a finished product. The method overcomes the defects that the plastic formwork has rigidity and tenacity; the plastic formwork can be extruded out with three layers or a plurality of layers and has a more reasonable structure; the middle part of the plastic formwork is a foam material; the weight of the plastic formwork is light; the plastic formwork plays a role in heat insulation and simultaneously reduces the abuse of large heat shrinkage rate of plastic, can be recovered for 100 percent, has more turnover times, high rigidity, cold resistance, high temperature resistance, corrosion resistance, acid and alkali resistance, easy demoulding and low production cost; besides, the plastic formwork can be customized to be made into any sizes, has fewer building wallboard seams, and has the advantages of making a wall body smoother and evener, saving more materials and the like.
Description
Technical field
The present invention relates to the manufacture method of the foamed plastic formwork that a kind of building field uses.
Background technology
At present, being used for the employed building template of various building fields mainly is steel material template, wood materials template and plastic formwork.Though the steel material template is firm in structure, often reusable, but in the process of using easily and concrete conglutination together, be difficult to the demoulding, and weight is big, corrosion easily, particularly is subjected to the erosion of water for a long time, and it is rotten to get rusty easily, reusable number of times greatly reduces, and is subjected to these problem restrictions service life easily.And the distortion of after being subjected to the dipping of water, rotting easily of the wood materials template template that to be timber do, and the building cost that the layering of will coming unglued after using several times can not use a large amount of wastes of causing timber also to increase greatly, building waste works the mischief for the environment and the mankind.The common plastics template, it is than great, and high temperature is yielding, and cold frangible, reusable number of times is few, has rigidity not have toughness, and specification such as cannot adjust arbitrarily at shortcoming.
Summary of the invention
Based on the problems referred to above, the purpose of this invention is to provide that a kind of cost is low, rigidity is high, the easy demoulding, good corrosion resistance, recyclable, can any length customized, the production method of the building template of long service life.
The objective of the invention is to be achieved through the following technical solutions:
The manufacture method of one-step formed composite foamed plastic formwork comprises top layer and sandwich layer up and down, and its raw material proportioning is:
Top layer up and down: the top layer olefin plastics accounts for raw material 40-95% up and down, the top layer filler accounts for raw material 5-40% up and down
Sandwich layer: glass fibre or string account for raw material 10-60%, blowing agent and account for that 0.2-3%, temperature regulato account for 0.6-5%, lubricant accounts for 0.3-2%,
Concrete handling process comprises:
One, the high-speed mixer of packing into after at first the sandwich layer raw material being mixed according to the raw material proportioning fully mixes, and sends into double screw extruder by feeder then, and the material of extruding is clamp-oned the sandwich layer extruder again; The top layer raw material is sent into the top layer plastic extruder according to the raw material proportioning by feeder up and down simultaneously;
Two, the sandwich layer that step 1 was handled and up and down the top layer raw material clamp-on the interflow distributor, through mould molding, then by three-roll press-polishing or Vacuum shaping, cooling, cutting, finished product.
It is by extruding the modification sandwich layer raw material that obtains high rigidity with olefin plastics and glass fibre or string that twin-screw is extruded; Described fibrous raw material is glass fibre or string;
Extruder temperature 110-210 degree; Feeder is by the spiral feeder raw material to be installed in the equipment to go; The top layer extruder can be regulated the toughness of product according to rotating speed; The sandwich layer plastic extruder is responsible for extruding the rigidity height that core material also can be regulated product by rotating speed;
Can be divided into three layers or multilayer raw material to raw material uniformly by the interflow distributor is generally the 8-28mm width with molten half product thickness of various width of mould molding or thickness then and can reaches 3000-30mm and then by three-roll press-polishing or Vacuum shaping the molten semi-finished product are tentatively finalized the design cooling, typing, cutting, finished product.
The sandwich layer raw material can directly obtain to have removed from the granulation link can reduce manufacturing cost greatly.
But the one-shot forming of this patent plastic formwork, the quantity-produced characteristics, and can produce big wide dough model flitch material, reduce energy consumption, reduce production cost, had the also characteristics of flexible of existing rigidity simultaneously, and good heat preservation performance in light weight, percent thermal shrinkage is little, cost low 100% is recyclable, number of turnover height, anticorrosion, acid and alkali-resistance, characteristics such as the easy demoulding.Do not use any bonding agent can not produce lamination in the multilayer.
The specific embodiment
The manufacture method of one-step formed composite foamed plastic formwork comprises top layer and sandwich layer up and down, and its raw material proportioning is:
Top layer up and down: the top layer olefin plastics accounts for raw material 40-95% up and down, the top layer filler accounts for raw material 5-40% up and down
Sandwich layer: glass fibre or string account for raw material 10-60%, blowing agent and account for that 0.2-3%, temperature regulato account for 0.6-5%, lubricant accounts for 0.3-2%,
Concrete handling process comprises:
One, the high-speed mixer of packing into after at first the sandwich layer raw material being mixed according to the raw material proportioning fully mixes, and sends into double screw extruder by feeder then, and the material of extruding is clamp-oned the sandwich layer extruder again; The top layer raw material is sent into the top layer plastic extruder according to the raw material proportioning by feeder up and down simultaneously;
Two, the sandwich layer that step 1 was handled and up and down the top layer raw material clamp-on the interflow distributor, through mould molding, then by three-roll press-polishing or Vacuum shaping, cooling, cutting, finished product.
It is by extruding the modification sandwich layer raw material that obtains high rigidity with olefin plastics and glass fibre or string that twin-screw is extruded; Described fibrous raw material is glass fibre or string;
Extruder temperature 110-210 degree; Feeder is by the spiral feeder raw material to be installed in the equipment to go; The top layer extruder can be regulated the toughness of product according to rotating speed; The sandwich layer plastic extruder is responsible for extruding the rigidity height that core material also can be regulated product by rotating speed;
Can be divided into three layers or multilayer raw material to raw material uniformly by the interflow distributor is generally the 8-28mm width with molten half product thickness of various width of mould molding or thickness then and can reaches 3000-30mm and then by three-roll press-polishing or Vacuum shaping the molten semi-finished product are tentatively finalized the design cooling, typing, cutting, finished product.
The sandwich layer raw material can directly obtain to have removed from the granulation link can reduce manufacturing cost greatly.
But the one-shot forming of this patent plastic formwork, the quantity-produced characteristics, and can produce big wide plastic plate, reduce energy consumption, reduce production cost, had simultaneously the also characteristics of flexible of existing rigidity, and good heat preservation performance in light weight, percent thermal shrinkage is little, cost low 100% is recyclable, number of turnover height, anticorrosion, acid and alkali-resistance, the characteristics such as the easy demoulding. Use any bonding agent can not produce lamination in the multilayer.
Claims (3)
1. the manufacture method of one-step formed composite foamed plastic formwork comprises top layer and sandwich layer up and down, and its raw material proportioning is:
Top layer up and down: the top layer olefin plastics accounts for raw material 40-95% up and down, the top layer filler accounts for raw material 5-40% up and down
Sandwich layer: glass fibre or string account for raw material 10-60%, blowing agent and account for that 0.2-3%, temperature regulato account for 0.6-5%, lubricant accounts for 0.3-2%,
Concrete handling process comprises:
One, the high-speed mixer of packing into after at first the sandwich layer raw material being mixed according to the raw material proportioning fully mixes, and sends into double screw extruder by feeder then, and the material of extruding is clamp-oned the sandwich layer extruder again; The top layer raw material is sent into the top layer plastic extruder according to the raw material proportioning by feeder up and down simultaneously;
Two, the sandwich layer that step 1 was handled and up and down the top layer raw material clamp-on the interflow distributor, through mould molding, then by three-roll press-polishing or Vacuum shaping, cooling, cutting, finished product.
2. manufacture method according to claim 1 is characterized in that, described fibrous raw material is glass fibre and/or string.
3. manufacture method according to claim 1 is characterized in that, described step 1 and step 2 can three or many produce simultaneously, also can produce the composite of three layers or multilayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910259567A CN101722643A (en) | 2009-12-21 | 2009-12-21 | Method for manufacturing one-step formed composite foamed plastic formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910259567A CN101722643A (en) | 2009-12-21 | 2009-12-21 | Method for manufacturing one-step formed composite foamed plastic formwork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101722643A true CN101722643A (en) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910259567A Pending CN101722643A (en) | 2009-12-21 | 2009-12-21 | Method for manufacturing one-step formed composite foamed plastic formwork |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923270A (en) * | 2012-10-16 | 2013-02-13 | 东莞市杰乐盛世运动用品有限公司 | Surfboard and manufacturing process thereof |
| CN103182818A (en) * | 2011-12-29 | 2013-07-03 | 上海杰事杰新材料(集团)股份有限公司 | Polycarbonate extrusion foaming composite sheet material and preparation method thereof |
| CN103231500A (en) * | 2013-03-25 | 2013-08-07 | 江苏百新塑业有限公司 | Molding method and special extrusion mold head of multilayer plastic building template |
| CN107116772A (en) * | 2017-06-07 | 2017-09-01 | 安徽韩华建材科技股份有限公司 | A kind of three-layer co-extruded preparation technique of plastic plate |
| CN108274716A (en) * | 2018-01-29 | 2018-07-13 | 王子华 | The manufacturing method of once-combined moulding plastics template |
-
2009
- 2009-12-21 CN CN200910259567A patent/CN101722643A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182818A (en) * | 2011-12-29 | 2013-07-03 | 上海杰事杰新材料(集团)股份有限公司 | Polycarbonate extrusion foaming composite sheet material and preparation method thereof |
| CN103182818B (en) * | 2011-12-29 | 2016-01-06 | 上海杰事杰新材料(集团)股份有限公司 | A kind of Merlon extrusion foaming composite board and preparation method thereof |
| CN102923270A (en) * | 2012-10-16 | 2013-02-13 | 东莞市杰乐盛世运动用品有限公司 | Surfboard and manufacturing process thereof |
| CN103231500A (en) * | 2013-03-25 | 2013-08-07 | 江苏百新塑业有限公司 | Molding method and special extrusion mold head of multilayer plastic building template |
| CN107116772A (en) * | 2017-06-07 | 2017-09-01 | 安徽韩华建材科技股份有限公司 | A kind of three-layer co-extruded preparation technique of plastic plate |
| CN107116772B (en) * | 2017-06-07 | 2019-05-24 | 安徽韩华建材科技股份有限公司 | A kind of three-layer co-extruded preparation technique of plastic plate |
| CN108274716A (en) * | 2018-01-29 | 2018-07-13 | 王子华 | The manufacturing method of once-combined moulding plastics template |
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Application publication date: 20100609 |