CN104403207A - Building plastic formwork and preparation method thereof - Google Patents
Building plastic formwork and preparation method thereof Download PDFInfo
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- CN104403207A CN104403207A CN201410689648.4A CN201410689648A CN104403207A CN 104403207 A CN104403207 A CN 104403207A CN 201410689648 A CN201410689648 A CN 201410689648A CN 104403207 A CN104403207 A CN 104403207A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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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
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G9/05—Forming boards or similar elements the form surface being of plastics
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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
- 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/028—Hollow fillers; Syntactic material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The invention discloses a building plastic formwork and a preparation method thereof. The formwork consists of an upper layer, a lower layer and a middle layer, wherein the upper layer and the lower layer are both prepared from co-polypropylene, the middle layer is prepared from the following raw materials in percentage by weight: 25%-35% of polyethylene, 37.5%-45% of co-polypropylene, 18%-25% of polypropylene fiber, 3%-7% of calcium-magnesium powder and 1.5%-3% of a defoaming agent. The preparation method comprises the following steps: 1), mixing raw materials of the middle layer uniformly; 2), loading the uniformly mixed raw materials in step 1) for plastification; 3), performing plastification on co-polypropylene and performing vertical dividing; 4), performing extrusion forming on extruded and plastified materials in step 2) and materials subjected to dividing in step 3) simultaneously, cooling and polishing, and making air holes and nail holes, naturally cooling after punching, and finally performing edge cutting, shaping and dimensioning. The building plastic formwork has the advantages that good waterproofness, wear resistance, toughness, high stress resistance, high easiness in demoulding are realized, and the formwork can be repeatedly used and recycled. The preparation method is simple in process, low in preparation cost and suitable for industrial production.
Description
Technical field
The present invention relates to building template technical field, be specifically related to a kind of building plastic formwork and preparation method thereof.
Background technology
In the constructions such as house building, bridge, tunnel construction and fragment of brick production, often application concrete depositing technique, mixed
Solidifying native casting process needs building template.Traditional building template adopts wooden form and Sheet Steel Form, and the enhancing that scarcity and people due to timber resources realize wood protection, wooden form is withdrawn from the market gradually.Sheet Steel Form can meet the needs of building trade; but steel and cement have good affinity; and steel are easily with corrosion; cause steel demoulding difficulty after construction; need to apply one deck releasing agent before use; so not only cause construction loaded down with trivial details, and stripper very easily pollutes reinforcing bar or building surface, and then or cause quality accident or bring difficulty to next step building operation.Moreover, Sheet Steel Form, reusing in process easily by collision deformation, makes the cement surface very unfairness be poured, often needs again to carry out smooth modification with cement, add operation and workload.
Along with the development of Building technology, occurred bamboo glue pattern plate in recent years, bamboo glue pattern plate is cut into slices by bamboo to weave into curtain shape, and then viscose glue lamination, surface treatment form.Due to the water-wet behavior of bamboo itself, waterproof layer is damaged after a number of uses, easily causes distortion, damages after making moist.More seriously, Bamboo Formwork not easily reclaims, can form a large amount of building waste after damaging.
Summary of the invention
For solving prior art Problems existing, the invention provides a kind of building plastic formwork, this plastic mould have water-fast, corrosion-resistant, indeformable, good toughness, strong stress resistance, good permeability, the demoulding easily, can Reusability and the advantage such as recyclable, use this template environmental protection, easy construction, can significantly cost-saving and reduction of erection time.
Present invention also offers the preparation method of this building plastic formwork, the method technical process is simple to operation, and processing condition are easy to control, and raw materials used is common raw material, and equipment used is common device, and thus preparation cost is low, is applicable to suitability for industrialized production.
Realizing the technical scheme that above-mentioned purpose of the present invention takes is:
a kind of building plastic formwork, be made up of upper strata, lower floor and middle layer, the upper and lower are that raw material is prepared from by Co-polypropylene, middle layer by 25% ~ 35% polyethylene, 37.5% ~ 45% Co-polypropylene, the polypropylene fibre of 18% ~ 25%, the dry powder of 3% ~ 7% and 1.5% ~ 3% defoamer be that raw material is prepared from, above all by percentage to the quality.
Technique scheme is improved further, middle layer by 30% ~ 35% polyethylene, 40% ~ 45% Co-polypropylene, the polypropylene fibre of 20% ~ 25%, the dry powder of 3% ~ 6% and 1.5% ~ 2% defoamer be that raw material is prepared from; Middle layer by 32% polyethylene, 41% Co-polypropylene, the polypropylene fibre of 21%, the dry powder of 4% and 12% defoamer be that raw material is prepared from; Described Plastic defoamer is Siloxane-Oxyalkylene Copolymers defoamer, carboxylic acid-N-alkylamide, dimethyl silicone oil or glyceryl monostearate.
A preparation method for building plastic formwork, comprises the steps:
1) mixer is warming up to 38 ~ 45 DEG C, the raw material in preparation middle layer is added in mixer and mixes 10 ~ 15 minutes;
2) the material material loading mixed in step 1) is plastified to single-screw extrusion machine, controlling single-screw extrusion machine barrel one district temperature is 185 ~ 195 DEG C, two district's temperature are 160 ~ 170 DEG C, three district's temperature are 170 ~ 180 DEG C, four district's temperature are 180 ~ 190 DEG C, and five district's temperature are 180 ~ 190 DEG C, and six district's temperature are 170 ~ 180 DEG C, screw speed is 50 ~ 80 revs/min;
3) the material copolymerization polypropylene material loading of preparation the upper and lower is plastified to another single-screw extrusion machine, controlling single-screw extrusion machine barrel one district temperature is 160 ~ 165 DEG C, two district's temperature are 165 ~ 170 DEG C, three district's temperature are 170 ~ 175 DEG C, four district's temperature are 175 ~ 180 DEG C, five district's temperature are 180 ~ 190 DEG C, and screw speed is 10 ~ 20 revs/min, then the Co-polypropylene after extruding plasticizing are shunted up and down by divider;
4) by step 2) in the material shunted up and down through multilayer divider in material after extruding plasticizing and step 3) enter in board mould simultaneously, the temperature of switchboard timber die is 165 ~ 170 DEG C, be squeezed into sheet material, then enter and coldly in three-roller calendar go polishing, the temperature controlling water coolant in three-roller calendar is 40 ~ 50 DEG C, after sheet material being cooled to 75 ~ 85 DEG C, enter automatic hydraulic tapping and plugging machine again and beat breather hole on sheet material, the temperature of hydraulic control automatic punch is 68 ~ 72 DEG C, breather hole enters another automatic hydraulic punching nail hole on sheet material after having beaten, the temperature of hydraulic control automatic punch is 68 ~ 72 DEG C, rear naturally cooling has been beaten in nail hole, last cutting edge sizing, dimensioning.
As shown from the above technical solution, the middle layer of this plastic mould adopts polyethylene, Co-polypropylene, polypropylene fibre, dry powder and defoamer are raw material, these raw materials adopt ratio of the present invention to mix, then plastify in material loading to single-screw extrusion machine, the temperature and the screw speed that control each district of single-screw extrusion machine barrel are very crucial, whether the control of each district temperature and screw speed suitably directly can affect the Performance and quality of plastic mould, as water-fast, acidproof, the performance such as alkaline-resisting and corrosion-resistant, the material copolymerization polypropylene material loading of preparation the upper and lower is plastified to another single-screw extrusion machine simultaneously, control the temperature in each district of single-screw extrusion machine barrel equally well, after having plastified, after shunting up and down with divider and the material of middle layer raw material gained after plastics processing enter on board mould is squeezed into and has simultaneously, in, the sheet material of lower three layers, the mold temperature of switchboard timber die is also very crucial, mold temperature plays a decisive role to sheet material three formable layer, sheet material after shaping cools polishing through three-roller calendar, in three-roller calendar, the temperature of water coolant controls equally very crucial, this is by the toughness to template, the performance such as resistance and intensity has an impact, cooling polishing after on sheet material nailing sub-aperture and breather hole, the temperature of nailing sub-aperture and breather hole also will control appropriately, the low effect that all can affect punching of Tai Gaotai.
Compared with prior art, its beneficial effect and advantage are in the present invention:
1) this template water resistance is good, and in water, long-term immersion is non-foaming, not stratified.
2) this template good toughness, can do the template of plane of bending, and has enough physical strengths, indeformable, and dimensional stabilizing, not warpage, do not ftracture.
3) this template environmental protection, discharges without any toxic and harmful, substantially pollution-free to environment.
4) this template is acidproof, alkaline-resisting and corrosion-resistant, and antiseptic property is good, and various construction environment is all applicable, and uses and deposit and do not need to do any anticorrosion, damp-proof treatment.
5) high, shock-resistant, the wear-resistant and strong stress resistance of this template strength, template is abandon from 15 floors, has no damage, very durable, use long service life, thus can Reusability, turnover rate is high, turnover access times can reach 50-100 time, be 10-20 times of wooden form, and Reusability rear surface are still smooth without dirt settling.
6) this template good permeability, can discharge free-water unnecessary in young concrete and air, significantly improves concrete performance.
7) the waste and old template after the use of this template can utilize by paid recovery, for building constructor has saved cost, compared with wooden form, bamboo glue pattern plate cost depletions, considerably reduces concrete depositing cost, reduces construction costs.
8) the very easily demoulding of this template is used, this template belongs to macromolecular material, surface smoothing, bright and clean, without the need to brush releasing agent, during the demoulding, remove supported underneath, basic Automatic-falling, not only reduce clean, upkeep cost, and dismounting wastage rate are extremely low, wooden form wastage rate are 1.57%, the wastage rate of Wood-plastic formwork are 0.8%, and the wastage rate of this template are 0.2%.
9) use this template can the reduction of erection time, this template surface be level and smooth, bright and clean, and cast object smooth surface is attractive in appearance, can reach dry wall requirement, deduct wall secondary plastering technique after concrete depositing, can direct faced deorative, the reduction of erection time 30%.
10) use this template construction convenient, easy installation and removal, quick and safety, this template class is horizontal, longitudinal connects combination arbitrarily, can saw, hole and nail, the performances such as saw, boring and nail are equal to wooden form, bamboo glue pattern plate, due to Sheet Steel Form, the framework template of different shape can also be processed into as required.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1:
1) mass percent preparing middle layer raw material is as follows: polyethylene 25%, Co-polypropylene 45%, polypropylene fibre 20%, dry powder 7% and Siloxane-Oxyalkylene Copolymers 3%, mixer is warming up to 38 DEG C, more above-mentioned each feed composition is added in mixer mix 10 minutes.
2) the material material loading mixed in step 1) is plastified to plastics single-screw extrusion machine SJ90, controlling single-screw extrusion machine barrel one district temperature is 185 DEG C, two district's temperature are 160 DEG C, three district's temperature are 170 DEG C, four district's temperature are 180 DEG C, five district's temperature are 190 DEG C, and six district's temperature are 170 DEG C, and screw speed is 50 revs/min.
3) Co-polypropylene material loading is plastified to another plastics single-screw extrusion machine SJ90, control single-screw extrusion machine barrel one district temperature 160 DEG C, two district's temperature are 165 DEG C, three district's temperature are 170 DEG C, four district's temperature are 175 DEG C, five district's temperature are 180 DEG C, and screw speed is 10 revs/min, then the Co-polypropylene after extruding plasticizing are shunted up and down by multi-layer co-extruded divider JW-FPQ.
4) by step 2) in the material shunted up and down through multilayer divider in material after extruding plasticizing and step 3) enter in board mould simultaneously, the temperature of switchboard timber die Jx-003 is 165 DEG C, be squeezed into sheet material, the upper strata of sheet material, lower floor and middle layer are formed, then enter and coldly in three-roller calendar YR-1500 go polishing, the temperature controlling water coolant in three-roller calendar is 50 DEG C, after sheet material being cooled to 75 DEG C, enter automatic hydraulic tapping and plugging machine MZ-ROB100PV2-1-380 again and beat breather hole on sheet material, the temperature of hydraulic control automatic punch is 72 DEG C, breather hole enters another automatic hydraulic tapping and plugging machine nail hole on sheet material after having beaten, the temperature of hydraulic control automatic punch is 68 DEG C, rear naturally cooling has been beaten in nail hole, last cutting edge sizing, dimensioning, obtain this building plastic formwork.
The various performances of building plastic formwork, wooden form and the bamboo glue pattern plate embodiment 1 prepared are tested, and the result of test is as shown in the table:
As seen from the above table, this template superior performance, properties is much better than wooden form and bamboo glue pattern plate, is desirable building template.
This building plastic formwork and wooden form are carried out use experiment, with every layer of 1000 square metres of floor area of building, 48 floor height buildings are example, the template situation of use: one batch 3 cover template, often open template 1.67 square metres, use the result of experiment as following table:
Wherein, the price 70 yuan of plastic mould/, rented template with 10 months and calculate.
As seen from the above table, this plastic mould significantly can reduce construction costs.
The cost performance of wooden form and plastic mould compared, comparative result is as following table:
| Template type | Cost (unit/square metre) | Minimum access times | Final account cost (unit/square metre/time) |
| Wooden form | 33 | 7 | 4.7 |
| Plastic mould | 77.84 | 50 | 1.55 |
As seen from the above table, use plastic mould every square metre cost-saved 3.15 yuan at every turn, use the cost of plastic mould to be equivalent to 33% of wooden form.As can be seen here, use plastic mould can be significantly cost-saving.
Embodiment 2:
1) mass percent preparing middle layer raw material is as follows: polyethylene 35%, Co-polypropylene 42.5%, polypropylene fibre 18%, dry powder 3% and carboxylic acid-N-alkylamide 1.5%, mixer is warming up to 38 DEG C, more above-mentioned each feed composition is added in mixer mix 15 minutes.
2) the material material loading mixed in step 1) is plastified to single-screw extrusion machine SJ90, controlling single-screw extrusion machine barrel one district temperature is 195 DEG C, two district's temperature are 170 DEG C, three district's temperature are 180 DEG C, four district's temperature are 190 DEG C, five district's temperature are 180 DEG C, and six district's temperature are 180 DEG C, and screw speed is 80 revs/min.
3) Co-polypropylene material loading is plastified to another single-screw extrusion machine SJ90, control single-screw extrusion machine barrel one district temperature 165 DEG C, two district's temperature are 170 DEG C, three district's temperature are 175 DEG C, four district's temperature are 180 DEG C, five district's temperature are 190 DEG C, and screw speed is 20 revs/min, then by the Co-polypropylene after extruding plasticizing by shunting under multi-layer co-extruded divider JW-FPQ.
4) by step 2) in the material shunted up and down through multilayer divider in material after extruding plasticizing and step 3) enter in board mould simultaneously, the temperature of switchboard timber die Jx-003 is 170 DEG C, be squeezed into sheet material, the upper strata of sheet material, lower floor and middle layer are formed, then enter and coldly in three-roller calendar YR-1500 go polishing, the temperature controlling water coolant in three-roller calendar is 40 DEG C, after sheet material being cooled to 85 DEG C, enter automatic hydraulic tapping and plugging machine MZ-ROB100PV2-1-380 again and beat breather hole on sheet material, the temperature controlling automatic hydraulic automatic punch is 68 DEG C, breather hole enters another automatic hydraulic punching nail hole on sheet material after having beaten, the temperature of hydraulic control automatic punch is 72 DEG C, rear naturally cooling has been beaten in nail hole, last cutting edge sizing, dimensioning, obtain this building plastic formwork.
Embodiment 3:
1) mass percent preparing middle layer raw material is as follows: polyethylene 31%, Co-polypropylene 37.5%, polypropylene fibre 25%, dry powder 5% and Siloxane-Oxyalkylene Copolymers 1.5%, mixer is warming up to 42 DEG C, more above-mentioned each feed composition is added in mixer mix 13 minutes.
2) the material material loading mixed in step 1) is plastified to single-screw extrusion machine, controlling single-screw extrusion machine barrel one district temperature is 190 DEG C, two district's temperature are 165 DEG C, three district's temperature are 175 DEG C, four district's temperature are 185 DEG C, five district's temperature are 185 DEG C, and six district's temperature are 170 DEG C, and screw speed is 70 revs/min.
3) Co-polypropylene material loading is plastified to another single-screw extrusion machine, controlling single-screw extrusion machine barrel one district temperature is 163 DEG C, two district's temperature are 168 DEG C, three district's temperature are 172 DEG C, four district's temperature are 177 DEG C, five district's temperature are 185 DEG C, and screw speed is 15 revs/min, then the Co-polypropylene after extruding plasticizing are shunted up and down by multilayer divider.
4) by step 2) in the material shunted up and down through material diversion device in material after extruding plasticizing and step 3) enter in board mould simultaneously, the temperature of switchboard timber die is 167 DEG C, be squeezed into sheet material, the upper strata of sheet material, lower floor and middle layer are formed, then enter and coldly in three-roller calendar go polishing, the temperature controlling water coolant in three-roller calendar is 45 DEG C, after sheet material being cooled to 80 DEG C, enter automatic hydraulic tapping and plugging machine again and beat breather hole on sheet material, the temperature of hydraulic control automatic punch is 70 DEG C, breather hole enters another automatic hydraulic punching nail hole on sheet material after having beaten, the temperature of hydraulic control automatic punch is 70 DEG C, rear naturally cooling has been beaten in nail hole, last cutting edge sizing, dimensioning, obtain this building plastic formwork.
Claims (5)
1. a building plastic formwork, be made up of upper strata, lower floor and middle layer, it is characterized in that: the upper and lower are that raw material is prepared from by Co-polypropylene, middle layer by 25% ~ 35% polyethylene, 37.5% ~ 45% Co-polypropylene, the polypropylene fibre of 18% ~ 25%, the dry powder of 3% ~ 7% and 1.5% ~ 3% defoamer be that raw material is prepared from, above all by percentage to the quality.
2. building plastic formwork according to claim 1, is characterized in that: middle layer by 30% ~ 35% polyethylene, 40% ~ 45% Co-polypropylene, the polypropylene fibre of 20% ~ 25%, the dry powder of 3% ~ 6% and 1.5% ~ 2% defoamer be that raw material is prepared from.
3. building plastic formwork according to claim 2, is characterized in that: middle layer by 32% polyethylene, 41% Co-polypropylene, the polypropylene fibre of 21%, the dry powder of 4% and 12% defoamer be that raw material is prepared from.
4. building plastic formwork according to claim 1, is characterized in that: described Plastic defoamer is Siloxane-Oxyalkylene Copolymers defoamer, carboxylic acid-N-alkylamide, dimethyl silicone oil or glyceryl monostearate.
5. a preparation method for building plastic formwork according to claim 1, is characterized in that comprising the steps:
1) mixer is warming up to 38 ~ 45 DEG C, the raw material in preparation middle layer is added in mixer and mixes 10 ~ 15 minutes;
2) the material material loading mixed in step 1) is plastified to single-screw extrusion machine, controlling single-screw extrusion machine barrel one district temperature is 185 ~ 195 DEG C, two district's temperature are 160 ~ 170 DEG C, three district's temperature are 170 ~ 180 DEG C, four district's temperature are 180 ~ 190 DEG C, and five district's temperature are 180 ~ 190 DEG C, and six district's temperature are 170 ~ 180 DEG C, screw speed is 50 ~ 80 revs/min;
3) the material copolymerization polypropylene material loading of preparation the upper and lower is plastified to another single-screw extrusion machine, controlling single-screw extrusion machine barrel one district temperature is 160 ~ 165 DEG C, two district's temperature are 165 ~ 170 DEG C, three district's temperature are 170 ~ 175 DEG C, four district's temperature are 175 ~ 180 DEG C, five district's temperature are 180 ~ 190 DEG C, and screw speed is 10 ~ 20 revs/min, then the Co-polypropylene after extruding plasticizing are shunted up and down by divider;
4) by step 2) in the material shunted up and down through multilayer divider in material after extruding plasticizing and step 3) enter in board mould simultaneously, the temperature of switchboard timber die is 165 ~ 170 DEG C, be squeezed into sheet material, then enter and coldly in three-roller calendar go polishing, the temperature controlling water coolant in three-roller calendar is 40 ~ 50 DEG C, after sheet material being cooled to 75 ~ 85 DEG C, enter automatic hydraulic tapping and plugging machine again and beat breather hole on sheet material, the temperature of hydraulic control automatic punch is 68 ~ 72 DEG C, breather hole enters another automatic hydraulic punching nail hole on sheet material after having beaten, the temperature of hydraulic control automatic punch is 68 ~ 72 DEG C, rear cooling has been played in nail hole, last cutting edge sizing, dimensioning.
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| CN201410689648.4A CN104403207B (en) | 2014-11-26 | 2014-11-26 | A kind of building plastic formwork and preparation method thereof |
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| CN201410689648.4A CN104403207B (en) | 2014-11-26 | 2014-11-26 | A kind of building plastic formwork and preparation method thereof |
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| CN106827439A (en) * | 2016-12-22 | 2017-06-13 | 张家港市大能塑料制品有限公司 | A kind of plastic processing |
| CN108117685A (en) * | 2018-01-25 | 2018-06-05 | 浙江三门宏桥橡塑科技有限公司 | A kind of anti-aging desktop |
| CN109435399A (en) * | 2018-11-06 | 2019-03-08 | 云南云冶中信塑木新型材料有限公司 | A kind of New Type Architecture Mode preparation method based on pp substrate |
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