CN106363933A - Continuous fibre reinforced PVC building template equipment and forming method thereof - Google Patents
Continuous fibre reinforced PVC building template equipment and forming method thereof Download PDFInfo
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- CN106363933A CN106363933A CN201610755015.8A CN201610755015A CN106363933A CN 106363933 A CN106363933 A CN 106363933A CN 201610755015 A CN201610755015 A CN 201610755015A CN 106363933 A CN106363933 A CN 106363933A
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- Prior art keywords
- pvc
- continuous
- roll
- forming method
- prepreg
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Classifications
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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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
-
- 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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Abstract
The invention discloses a continuous fibre reinforced PVC building template equipment and a forming method thereof. A surface layer is made from a continuous fibre reinforced PVC prepreg, a middle core material layer is made from a hard PVC foamed material, and the surface layer is bonded with the middle core material layer in a manner of thermal compounding. A template prepared by the method disclosed by the invention has the advantages of being low in density, high in strength and long in life, and is wide in application range compared with other templates and capable of being matched with a frame and used independently; and compared with other types of templates, the cost of the template can be reduced through adopting the PVC material, the weight of a plate can be reduced and the plate can also be compounded with the PVC prepreg without adding an adhesive film and other materials through choosing a PVC hard foaming technology for the middle core material layer. The prepared product and the generated leftover materials in the forming method disclosed by the invention can be recycled, and the forming method belongs to green product technologies.
Description
Technical field
The invention belongs to technical field of polymer materials, particularly to a kind of continuous lod pvc building template equipment
And its forming method.
Background technology
Plastic formwork is a kind of energy-saving and Green Product, is continue plank sheathing, combined steel formwork, bamboo and wood blocking tool
Another new regeneration product after plate, all-steel big shuttering.Plastic formwork obtained in architectural engineering and science of bridge building in recent years
Preliminary Applications, achieve certain effect, but do not obtain the attention of building industry.Popularization and application plastic formwork should be " to mould
Dai Mu ", " to mould Dai Gang ", the important measures economizing on resources.
At present, there is the various plastic formwork of many enterprise developments, such as hard reinforced plastics template, wood plastics composite template, gmt
Plastic formwork, floor plastic formwork and plastics large template system etc..With the continuous improvement of form work engineering technical merit, template is advised
Lattice forward direction seriation and architecture development, occur in that the template system being much applied to different construction works, mould as big in assembled
Plate, hydraulic slip form, hydraulic climbing shuttering, platform mould, cylinder mould, bridge formwork, tunnel form, cantilever form etc..
Should be the Main way of template industry Future Development using plastic formwork, meet the building industry green that country advocates
Construction concept, will be an important milestone of building template development history, be the revolution of construction industry.
Due to plastic formwork good market prospect, and the flourishing of continuous fiber reinforced thermoplastic composite material, give
The upgrading of building template with the addition of new vitality.Patent 201110000869.2 discloses a kind of continuous fiber plastic coated belt material
Compound increase building template, using surface layer for bonding one for particieboard through double-side hot-melt adhesive in the middle of continuous fiber reinforced thermoplastic band
Rise, although this method can make, hot melt adhesive film price is higher, product cost can be made to increase, and hot melt adhesive film and plane
The bond strength of the thermosetting adhering resin used by card is not high, has a strong impact on the life-span of template.Patent
Cn201610103703.6 discloses a kind of fiber reinforcement building template and preparation method thereof, using addition continuous lod heat
Plastic composites surface layer is used as middle dielectric layer by hot compound nonwoven cloth, is making plywood, during particieboard, directly
As surface layer, building template is made by the method for nonwoven layer gluing making sheet although producing quick, but itself is still
There are the hard defects of wooden template, such as hygroscopic, easily damage by worms, middle core service life is short, the problems such as reclaim difficult.Patent
201210313498.8 " a kind of building templates and preparation method thereof " disclose continuous fiber reinforced composite materials layer and the fibre that is chopped
Dimension strengthens composite layer and passes through staggered lay, by hot-forming.Although overall plastic structure is employed on material, produce
Product density is big, is suitable only for joining frame use, range is single.Patent 201110258944.5 " build by a kind of thermoplastic fibre enhancing
The preparation method of building mould " disclose a kind of surface material for extrusion modified resin Sized glass cloth, core is the building mould of gmt
Board manufacturing method, the density of sheet material is little, but the low intensity of lightweight gmt material, modulus is little, the short life of template application, and material
Material high cost, is unfavorable for promoting.
Content of the invention
The technical problem to be solved, is for the defect in aforementioned background art and deficiency, provides a kind of company
Continuous fiber reinforcement pvc building template equipment and its forming method, the building template production efficiency of this kind of structure is high, and surface is succinct,
And the selection of material is thermoplastic resin, harmless, free from environmental pollution.
The technical scheme is that and be achieved in that: a kind of continuous lod pvc building template equipment and its molding
Method, including
Step (1): first by material and auxiliary agent precise, be subsequently poured in high-speed mixer and carry out hot mixed and cold mixed heel row
Go out, pour in the elevating hopper of extruder;
Step (2): being spread continuous fiber by creel is derived, through wearing silk row, makes continuous fiber be maintained at same plane
Interior, then in the presence of other multiple round rollers such as floating jockey pulley, differential type dispersion roller, continuous fiber is deployed into specifically
Surface density, is then coated with the thermoplastic resin of double screw extruder extrusion melting, after w type mold cavity, warp
After crossing continuous metal roller roll-in cooling, it is crimped winding, obtains continuous lod pvc prepreg tape;
Step (3): pvc prepreg tape is unreeled by unwinding rack, thereon according to design requirement, lays special angle and layer
The pvc prepreg of number, makes it smooth by metallic roll, draws material so as to carry out roll-in with multiple metallic roll after baking oven,
Make pvc prepreg carry out being compacted into plate according to the thickness of design, then the pvc pre-impregnated sheet after roll-in is preheated, with extrusion
The hard pvc foamed board extruded in machine mould carries out directly heat and is combined, by progressively roll-in, the cooling of multiple metallic roll, the most laggard
Row cuts, collects.
As one preferred embodiment, continuous fibre enhancement resin prepreg is by the component system comprising following weight portion
Become:
50~60 parts of continuous fiber;
40~50 parts of thermoplastic resin, auxiliary agent.
As one preferred embodiment, described continuous fiber is selected from inorganic continuous fiber, described inorganic continuous fiber choosing
From glass fibre, carbon fiber, boron fibre or basalt fibre, described thermoplastic resin selects autohemagglutination polrvinyl chloride.
As one preferred embodiment, mode of heating is electrical heating or Infrared Heating, and step (1) high speed mixer mixes
Dump temperature after conjunction is 120-130 DEG C, and the dump temperature of cold mixer is 40-45 DEG C.
As one preferred embodiment, the floating jockey pulley in step (2) is linked together with screw mandrel, real as needed
Now rise or decline, differential type dispersion roller is welded into a round roller for many round rollers, when continuous fiber passes through its surface, its
The normal linear velocity producing of rotating ratio is slow, contacts with continuous fiber in batch (-type), continuous fiber is equably broken up, and do not damage
Continuous fiber, other round rollers have multiple round rollers of aluminium oxide for plated surface, and round roller roll neck is 100-500mm, and fiber launches density
For glass fibre 800-1200g/m2, basalt fibre 120-150g/m2, carbon fiber 180-240g/m2, aramid fiber 180-
240g/m2, the type of cooling of metal roll-in cooling is natural cooling or air-cooled.
As one preferred embodiment, in step (3), the number of plies of pvc prepreg is 1 to 5 layer, pvc prepreg overlay angle
Spend for 0 °/90 °/0 °/90 °/0 °, 0 °/0 °/90 °/0 °/0 °, one or more of 0 °/90 °/90 °/90 °/0 °.
As one preferred embodiment, the roller being used for smooth pvc prepreg in step (3) has aluminium oxide for plated surface
Multiple round rollers, baking oven for heating temperature is 160 DEG C -200 DEG C, and mode of heating is one of electrical heating or Infrared Heating, roll-in pressure
Power is 1-3mpa, and preheating temperature is 180 DEG C -200 DEG C, and mode of heating is one of electrical heating or Infrared Heating.
As one preferred embodiment, the metalling roll surface being used for cooling in step (3) reaches minute surface through grinding process
Effect, in the metallic roll for cooling, first metallic roll roll neck is more than 800mm, and other metallic roll roll necks are 500-600mm,
The type of cooling is natural cooling or water flowing cooling, and rolling pressure is 3-7mpa.
As one preferred embodiment, in step (3), pvc prepreg is at least a face in building template.
As one preferred embodiment, whole technical process medium velocity is constant, and speed is 1-8m/min.
After employing technique scheme, the invention has the beneficial effects as follows:
1st, the raw material in the present invention and equipment, including the selection to prepreg and forming method, can accomplish that equipment is simple,
Cheap, technological requirement is not high, continuous production, improves efficiency.
2nd, to have density little for the template prepared by the present invention, and intensity is high, and the advantage of life-span length compares other template application models
Enclose wide, frame can be joined, also can be used alone.Compare other types template, using pvc material, the cost of template can be reduced, middle
Core layer selects the hard foamed technology of pvc, both can reduce panel weight, can be combined with pvc prepreg again, need not add glue
Film and other materials.
3rd, the prepared product in the present invention and produced leftover pieces, recyclable recycling, belong to Green Product skill
Art.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, also may be used
So that other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the overall structure diagram of continuous lod pvc building template of the present invention.
In figure, 1- surface layer;Core layer in the middle of 2-.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
A kind of continuous lod pvc building template, is made up of surface layer 1 and middle core layer 2, the material of surface layer 1 is even
Continuous fiber reinforcement pvc prepreg, the material of middle core layer 2 is hard pvc expanded material, and surface layer 1 is passed through with middle core layer 2
The compound mode of heat is bonded.
The production method 1 of embodiment 1:pvc building template
Step (1): after the various raw material of precise and auxiliary agent, pvc resin and auxiliary agent are poured into after high-speed mixer, low speed
Start high-speed mixer.After mixing a period of time, when mixed at high speed built-in temperature rises to 120 DEG C, material is entered cold mixer,
Start cold mixer, after material temperature is down to 40 DEG C, after discharge gate discharging, pour in the loading hopper of double screw extruder.
Step (2): being spread continuous glass fibre by creel is derived, through wearing silk row, makes continuous fiber be maintained at same
In plane.Then in floating jockey pulley, in the presence of other multiple round rollers such as differential type dispersion roller, continuous glass fibre is launched
To 1000g/, then it is coated with the pvc resin of double screw extruder extrusion melting, after w type mold cavity, warp
After crossing continuous metal roller roll-in cooling, it is crimped winding, obtains continuous lod pvc prepreg.
Step (3): pvc prepreg tape is unreeled by unwinding rack, thereon according to design requirement, lays 5 layers of prepreg tape, in advance
Leaching material laying angle is 0 °/90 °/0 °/90 °/0 °, makes it smooth by metallic roll, and traction material is so as to be passed through after baking oven
Multiple metallic roll carry out roll-in, make pvc prepreg carry out being compacted into plate according to the thickness of design, then will be pre- for the pvc after roll-in
After leaching plate is preheated, carry out after directly heat is compound with the hard pvc foamed board of extrusion in extruding machine mold, by multiple metals
Roller progressively roll-in, cooling, finally cut, collected.
The production method 2 of embodiment 2:pvc building template
Step (1): after the various raw material of precise and auxiliary agent, pvc resin and auxiliary agent are poured into after high-speed mixer, low speed
Start high-speed mixer.After mixing a period of time, when mixed at high speed built-in temperature rises to 120 DEG C, material is entered cold mixer,
Start cold mixer, after material temperature is down to 40 DEG C, after discharge gate discharging, pour in the loading hopper of double screw extruder.
Step (2): being spread continuous glass fibre by creel is derived, through wearing silk row, makes continuous fiber be maintained at same
In plane.Then in floating jockey pulley, in the presence of other multiple round rollers such as differential type dispersion roller, continuous glass fibre is launched
To 1000g/, then it is coated with the pvc resin of double screw extruder extrusion melting, after w type mold cavity, warp
After crossing continuous metal roller roll-in cooling, it is crimped winding, obtains continuous lod pvc prepreg.
Step (3): pvc prepreg tape is unreeled by unwinding rack, thereon according to design requirement, lays 5 layers of prepreg tape, in advance
Leaching material laying angle is 0 °/0 °/90 °/0 °/0 °, makes it smooth by metallic roll, and traction material is so as to be passed through after baking oven
Multiple metallic roll carry out roll-in, make pvc prepreg carry out being compacted into plate according to the thickness of design, then will be pre- for the pvc after roll-in
After leaching plate is preheated, carry out after directly heat is compound with the hard pvc foamed board of extrusion in extruding machine mold, by multiple metals
Roller progressively roll-in, cooling, finally cut, collected.
The production method 3 of embodiment 3:pvc building template
Step (1): after the various raw material of precise and auxiliary agent, pvc resin and auxiliary agent are poured into after high-speed mixer, low speed
Start high-speed mixer.After mixing a period of time, when mixed at high speed built-in temperature rises to 120 DEG C, material is entered cold mixer,
Start cold mixer, after material temperature is down to 40 DEG C, after discharge gate discharging, pour in the loading hopper of double screw extruder.
Step (2): being spread continuous glass fibre by creel is derived, through wearing silk row, makes continuous fiber be maintained at same
In plane.Then in floating jockey pulley, in the presence of other multiple round rollers such as differential type dispersion roller, continuous glass fibre is launched
To 1200g/, then it is coated with the pvc resin of double screw extruder extrusion melting, after w type mold cavity, warp
After crossing continuous metal roller roll-in cooling, it is crimped winding, obtains continuous lod pvc prepreg.
Step (3): pvc prepreg tape is unreeled by unwinding rack, thereon according to design requirement, lays 5 layers of prepreg tape, in advance
Leaching material laying angle is 0 °/90 °/0 °/90 °/0 °, makes it smooth by metallic roll, and traction material is so as to be passed through after baking oven
Multiple metallic roll carry out roll-in, make pvc prepreg carry out being compacted into plate according to the thickness of design, then will be pre- for the pvc after roll-in
After leaching plate is preheated, carry out after directly heat is compound with the hard pvc foamed board of extrusion in extruding machine mold, by multiple metals
Roller progressively roll-in, cooling, finally cut, collected.
The production method 4 of embodiment 4:pvc building template
Step (1): after the various raw material of precise and auxiliary agent, pvc resin and auxiliary agent are poured into after high-speed mixer, low speed
Start high-speed mixer.After mixing a period of time, when mixed at high speed built-in temperature rises to 120 DEG C, material is entered cold mixer,
Start cold mixer, after material temperature is down to 40 DEG C, after discharge gate discharging, pour in the loading hopper of double screw extruder.
Step (2): being spread continuous glass fibre by creel is derived, through wearing silk row, makes continuous fiber be maintained at same
In plane.Then in floating jockey pulley, in the presence of other multiple round rollers such as differential type dispersion roller, continuous glass fibre is launched
To 1000g/, then it is coated with the pvc resin of double screw extruder extrusion melting, after w type mold cavity, warp
After crossing continuous metal roller roll-in cooling, it is crimped winding, obtains continuous lod pvc prepreg.
Step (3): pvc prepreg tape is unreeled by unwinding rack, thereon according to design requirement, lays 3 layers of prepreg tape, in advance
Leaching material laying angle is 0 °/90 °/0 °, makes it smooth by metallic roll, and traction material is so as to pass through multiple gold after baking oven
Belong to roller and carry out roll-in, make pvc prepreg carry out being compacted into plate according to the thickness of design, then the pvc pre-impregnated sheet after roll-in is entered
After row preheating, carry out after directly heat is compound with the hard pvc foamed board of extrusion in extruding machine mold, by multiple metallic roll progressively
Roll-in, cooling, finally cut, collected.
Performance | Method of testing | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
Bending property | gb/t 9341-2000 | mpa | 190 | 232 | 210 | 170 |
Bending moduluses | gb/t 9341-2000 | gp | 7 | 9 | 7.5 | 6 |
Tensile break strength | gb/t 1040-2006 | mpa | 200 | 230 | 200 | 180 |
Impact strength | jg 149-2003 | kj/m2 | 145 | 169 | 151 | 118 |
It can be seen that the quantity of the lay of prepreg tape is more in sheet material from behavioral observation, intensity is bigger, the paving of prepreg tape
Layer, determines the performance of sheet material it can be seen that the maximum effect of economic interests according to its performance and actual application environment, can be embodied
Benefit.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (10)
1. continuous lod pvc building template equipment and its forming method are it is characterised in that include:
Step (1): first by material and auxiliary agent precise, be subsequently poured in high-speed mixer carry out heat mixed and cold mixed after discharge,
Pour in the elevating hopper of extruder;
Step (2): being spread continuous fiber by creel is derived, through wearing silk row, makes continuous fiber keep in the same plane, connecing
In the presence of other multiple round rollers such as floating jockey pulley, differential type dispersion roller, continuous fiber is deployed into specific face close
Degree, is then coated with the thermoplastic resin of double screw extruder extrusion melting, after w type mold cavity, Jing Guolian
After continuous metallic roll roll-in cooling, it is crimped winding, obtains continuous lod pvc prepreg tape;
Step (3): pvc prepreg tape is unreeled by unwinding rack, thereon according to design requirement, lays special angle and the number of plies
Pvc prepreg, makes it smooth by metallic roll, and traction material, so as to carry out roll-in with multiple metallic roll after baking oven, makes
Pvc prepreg carries out being compacted into plate according to the thickness of design, is then preheated the pvc pre-impregnated sheet after roll-in, with extruder
The hard pvc foamed board extruded in mould carries out directly heat and is combined, and by progressively roll-in, the cooling of multiple metallic roll, finally carries out
Cut, collect.
2. continuous lod pvc building template equipment as claimed in claim 1 and its forming method are it is characterised in that connect
Continuous fiber-reinforced resin prepreg is made up of the component comprising following weight portion:
50~60 parts of continuous fiber;
40~50 parts of thermoplastic resin, auxiliary agent.
3. continuous lod pvc building template equipment as claimed in claim 2 and its forming method it is characterised in that: institute
State continuous fiber and be selected from inorganic continuous fiber, described inorganic continuous fiber is selected from glass fibre, carbon fiber, boron fibre or basalt
Fiber, described thermoplastic resin selects autohemagglutination polrvinyl chloride.
4. continuous lod pvc building template equipment as claimed in claim 1 and its forming method it is characterised in that: plus
Hot mode is electrical heating or Infrared Heating, and the mixed dump temperature of step (1) high speed mixer is 120-130 DEG C, cold mixed
The dump temperature of machine is 40-45 DEG C.
5. continuous lod pvc building template equipment as claimed in claim 1 and its forming method it is characterised in that: step
Suddenly the floating jockey pulley in (2) is linked together with screw mandrel, realizes as needed rising or declines, and differential type dispersion roller is many
Root round roller is welded into a round roller, and when continuous fiber passes through its surface, the normal linear velocity producing of its rotating ratio is slow, in interval
Formula is contacted with continuous fiber, and continuous fiber is equably broken up, and does not damage continuous fiber, and other round rollers have oxidation for plated surface
Multiple round rollers of aluminum, round roller roll neck is 100-500mm, and it is glass fibre 800-1200g/m that fiber launches density2, basalt fibre
Dimension 120-150g/m2, carbon fiber 180-240g/m2, aramid fiber 180-240g/m2, the type of cooling of metal roll-in cooling is certainly
So cooling or air-cooled.
6. continuous lod pvc building template equipment as claimed in claim 1 and its forming method it is characterised in that: step
Suddenly in (3), the number of plies of pvc prepreg is 1 to 5 layer, and pvc prepreg overlay angle is 0 °/90 °/0 °/90 °/0 °, 0 °/0 °/90 °/
0 °/0 °, one or more of 0 °/90 °/90 °/90 °/0 °.
7. continuous lod pvc building template equipment as claimed in claim 1 and its forming method it is characterised in that: step
Suddenly the roller being used for smooth pvc prepreg in (3) has multiple round rollers of aluminium oxide for plated surface, baking oven for heating temperature for 160 DEG C-
200 DEG C, mode of heating is one of electrical heating or Infrared Heating, and rolling pressure is 1-3mpa, and preheating temperature is 180 DEG C -200
DEG C, mode of heating is one of electrical heating or Infrared Heating.
8. continuous lod pvc building template equipment as claimed in claim 1 and its forming method it is characterised in that: step
Suddenly the metalling roll surface being used for cooling in (3) reaches mirror effect through grinding process, in the metallic roll for cooling, first gold
Belong to roller roll neck and be more than 800mm, other metallic roll roll necks are 500-600mm, the type of cooling is natural cooling or water flowing cooling, roll-in
Pressure is 3-7mpa.
9. continuous lod pvc building template equipment as claimed in claim 1 and its forming method it is characterised in that: step
Suddenly in (3), pvc prepreg is at least a face in building template.
10. continuous lod pvc building template equipment as claimed in claim 1 and its forming method it is characterised in that: whole
Individual technical process medium velocity is constant, and speed is 1-8m/min.
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Cited By (5)
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CN107053697A (en) * | 2016-09-12 | 2017-08-18 | 青岛集威新材料科技有限公司 | A kind of continuous lod PVC building templates and forming method |
CN107877991A (en) * | 2017-11-01 | 2018-04-06 | 广州金发碳纤维新材料发展有限公司 | A kind of high rigidity Thick Composite and preparation method thereof |
CN110561853A (en) * | 2019-09-30 | 2019-12-13 | 云南福达机电有限公司 | Wear-resistant composite bottom plate for cigarette storage frame and processing method thereof |
CN113561600A (en) * | 2021-07-29 | 2021-10-29 | 浙江浩卓新材料科技有限公司 | Preparation method of fiber-reinforced PP (polypropylene) foam insulation board |
CN115071043A (en) * | 2022-06-16 | 2022-09-20 | 中国十七冶集团有限公司 | Large-batch plastic surface fiber reinforced production method |
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