CN109437788A - A kind of composite expanded polystyrene thermal insulation plate of fire-retardant type and its drawing method - Google Patents
A kind of composite expanded polystyrene thermal insulation plate of fire-retardant type and its drawing method Download PDFInfo
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- CN109437788A CN109437788A CN201811653224.7A CN201811653224A CN109437788A CN 109437788 A CN109437788 A CN 109437788A CN 201811653224 A CN201811653224 A CN 201811653224A CN 109437788 A CN109437788 A CN 109437788A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Abstract
The present invention relates to the field of building materials, a kind of composite expanded polystyrene thermal insulation plate of fire-retardant type and its drawing method are provided.The drawing method of the composite expanded polystyrene thermal insulation plate of the fire-retardant type include by raw material after mixing, through being at least molded three times, be shaped to plate.It reduces intergranular gap, little air, sucker and finishing room can form preferable negative pressure, be conducive to automated production by being repeatedly molded.The pressure-proof and snap-resistent tensile property of the composite expanded polystyrene thermal insulation plate of fire-retardant type obtained is good, and fire protecting performance is preferable, and thermal coefficient is lower, also, sucker and finishing room can form preferable negative pressure, be conducive to automated production.
Description
Technical field
The present invention relates to the field of building materials, in particular to a kind of composite expanded polystyrene thermal insulation plate of fire-retardant type
And its drawing method.
Background technique
Polystyrene thermal insulation plate is the foam heat-insulating board using polystyrene resin as raw material.It is mainly used for construction wall,
Roof heat insulation, composite plate heat preservation, freezer, air-conditioning, vehicle, ship insulation, floor heating, decoration engraving etc. purposes very
Extensively.Polystyrene thermal insulation plate in the prior art is through once molding formed for blocky blank.Blank stacking is placed on room temperature
Under.It when stacking, is separated between blank using parting bead, to divulge information.After blank has some strength after cured.But it is existing
Polystyrene thermal insulation plate sucker in technology and finishing room cannot form preferable negative pressure, can only manual sorting, sucker cannot be
Plate after cutting sucks up, and does not accomplish to automate.
Summary of the invention
The purpose of the present invention is to provide a kind of drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type, particles
Between gap it is small, little air, sucker and finishing room can form preferable negative pressure, be conducive to automated production.
Another object of the present invention is to provide a kind of above-mentioned composite expanded polystyrene thermal insulation plate of fire-retardant type, resistance to compression is anti-
Folding tensile property is good, and fire protecting performance is preferable, and thermal coefficient is lower, also, sucker and finishing room can form preferable negative pressure, favorably
In automated production.
The embodiment of the present invention is achieved in that
A kind of drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type comprising after mixing by raw material, warp
It is at least molded three times, is shaped to plate.
A kind of composite expanded polystyrene thermal insulation plate of fire-retardant type is protected using the composite expanded polystyrene of above-mentioned fire-retardant type
The drawing method of warm plate is suppressed.
The beneficial effect of the embodiment of the present invention is for example:
The drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type provided in this embodiment, is repeatedly molded, repeatedly
The gap between the particle of raw material and air are squeezed out, so that the structure of raw material is more preferably compact, sucker can be formed preferably with finished product
Negative pressure, and then the plate absorption after cutting is got up, realizes automatic transportation or processing.Control is at a specific intervals simultaneously
Time further promotes pressing effect.In the first mold process, pressing amount is big, and interval time is small, be conducive to quick pressing at
Type, and in subsequent second mold process, pressing amount is small, and interval time is appropriately extended, and is able to ascend the transverse direction of air and indulges
To burst size, the air of the composite expanded polystyrene thermal insulation plate of fire-retardant type is largely discharged, and hole is small, and internal crystallization water is few, inhales
Water rate reduces, and heat insulation effect is good.Simultaneously in the curing process, parting bead is not needed when stacking, no pressure, which is unevenly distributed, to be caused
Deformation, solve ventilating problem only need again interlude that blank is overturn.In addition, the fire-retardant type provided in the present embodiment
Composite expanded polystyrene thermal insulation plate, pressure-proof and snap-resistent tensile property is good, and fire protecting performance is preferable, and thermal coefficient is lower, also, inhales
Disk and finishing room can form preferable negative pressure, be conducive to automated production.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
The composite expanded polystyrene thermal insulation plate of the fire-retardant type of the embodiment of the present invention and its drawing method are carried out below specific
Explanation.
Present embodiments provide a kind of drawing method of composite expanded polystyrene thermal insulation plate of fire-retardant type comprising by raw material
After mixing, through being at least molded three times, it is shaped to plate.
Raw material in the present embodiment can be the raw material of common styrene insulation board, or distinctive in the present embodiment
Raw material.Specifically, in the present embodiment, raw material includes modified polystyrene material, the first cement and pretreated water mud, is modified poly-
The mass ratio of styrene materials, the first cement and pretreated water mud is 30-35:19-21:238-270.
Wherein, modified polystyrene material is mixed to get by following raw material: 11-13 parts of polystyrene foam particles, cream
19-22 parts of liquid type interfacial agents；Wherein, the solid content of emulsion-type interfacial agents is 18-21%.Pretreated water mud is according to parts by weight
Including 110-150 parts of the second cement, 14-16 parts of coal ash, it can be dispersed rubber powder 4-6 parts and 95-105 parts of water.
Polystyrene foam particles are a kind of light polymers.It is that foaming is added using polystyrene resin
Agent, while heating is softened, and is generated gas, is formed a kind of foamed plastics of rigid closed cell structure.In the present embodiment, pass through to
Emulsion-type interfacial agents are wherein added, and control the solid content of emulsion-type interfacial agents, to realize to polystyrene foam particles
Modification, formed modified polystyrene material, modified polystyrene material through sufficiently it is modified, performance is more preferably.
Inventor has found the curing time in later period when polystyrene thermal insulation plate is pressed in long-term work
It is long, and in solidification, it needs to be separated using parting bead, so that solidification process ventilation is uneven, blank surface is caused to occur
Denaturation, increases many leftover pieces.
Inventor changes into the first cement and the second cement, the first water by the way that the cement in original formula to be changed
Mud includes special cement 90-100% and ordinary cement 0-10% by mass percentage, and the second cement wraps by mass percentage
Include special cement 20-40% and ordinary cement 60-80%；By forming two kinds of different cement of proportion, to reinforce raw material
Curing performance.
Wherein, the content of special cement is high in the first cement, and ordinary cement content is low.Ordinary cement contains in second cement
Amount is high, and the content of special cement is low.When mixing the raw material of the composite expanded polystyrene thermal insulation plate of fire-retardant type, being first will be modified poly-
After styrene materials and the first cement mixing are uniform, then mix with pretreated water mud.Pretreated water mud will be coated on polyphenyl
The outside of the mixture of vinyl material and the first cement, and then outside ordinary cement content height is formd, inside ordinary cement contains
Measure few structure.In the present embodiment, using the special cement of high-content as internal layer, curing time is greatly shortened,
And can internal layer special cement content it is high, the high ingehious design of outer layer ordinary cement content, when can guarantee inside and outside solidification
Between it is more uniform, not only can shorten curing time, improving production efficiency, while the composite expanded polyphenyl of fire-retardant type can also be promoted
The performance of ethylene insulation board.
In the present embodiment, special cement include one of aluminate cement, sulphate aluminium cement, fluoroaluminate cement or
It is a variety of.Its setting rate is fast, and can heat release, solidification can be further strengthened by heat release in special cement content high internal layer
Speed.
Preferably, the first cement includes special cement 95-100% and ordinary cement 0-5% by mass percentage, and second
Cement includes special cement 20-30% and ordinary cement 70-80% by mass percentage.
Above-mentioned raw materials are uniformly mixed, specifically, first by modified polystyrene material and the first cement mixing it is uniform after, then
It is uniformly mixed with pretreated water mud, then by raw material after mixing in being molded in mold, in the present embodiment, through extremely
It is few to be molded three times, it is shaped to plate.
It in the present embodiment, is repeatedly molded, the gap between the particle of raw material and air is squeezed out repeatedly, so that the knot of raw material
Structure is more preferably compact, and sucker can form preferable negative pressure with finished product, and then the plate absorption after cutting is got up, and realizes automation
Transport or processing.
Specifically, in the present embodiment, be intermittent molding, arbitrarily between molding adjacent twice between be divided into 1-4s.Between
Formula of having a rest molding enables to the raw material being molded to have certain air release time, advantageously ensures that the equal of raw material inner air
Even distribution.
At least molding includes bouncing back at least once after being first molded pressing downwards with the first of the pressing amount of 80-120mm three times,
And continue to bounce back after pressing downwards with the second molding of the pressing amount of 30-70mm and carry out intermittent molding at least twice, it is shaped to
Plate.By control pressing amount in the present embodiment, so that the degree pressed each time is controlled, in initial pressing, due to raw material
Interior air is more, is easy to press, and in subsequent bonding processes, air has been discharged part, is not easy to press, the present embodiment
In, by controlling lesser pressing amount, is repeatedly pressed, the air in plate is further discharged, promotes the compacting journey of plate
Degree.
Interval time between any the first adjacent twice molding is 1-2s, between the second arbitrarily adjacent twice molding
Interval time be 3-4s.Control is equipped with specific interval time simultaneously, further promotes pressing effect.In the first mold process
In, pressing amount is big, and interval time is small, be conducive to quick pressing molding, and in subsequent second mold process, pressing amount is small,
Interval time is appropriately extended, and is able to ascend the horizontal and vertical burst size of air, and then the gas promoted in plate is evenly distributed
Property.
Specifically, molded several times are five times, and the initial thickness of the composite expanded polystyrene thermal insulation plate of fire-retardant type is 890-
910mm, is molded through five times, and thickness successively becomes 790-810mm, 740-760mm, 690-710mm, 640-660mm and 600-
610mm is locked followed by the self-locking device of limit 620mm, is locked to 620mm.Preferably, molded several times are five times, non-ignitable
The initial thickness of the composite expanded polystyrene thermal insulation plate of type be 900mm, through five times be molded, thickness successively become 800mm, 750mm,
700mm, 650mm and 600mm are locked followed by the self-locking device of limit 620mm, are locked to 620mm.In the present embodiment,
By the thickness of the composite expanded polystyrene thermal insulation plate of fire-retardant type after control pressing, it maximum can guarantee that fire-retardant type is composite expanded
Air in polystyrene thermal insulation plate excludes effect.Wherein, it when last time presses, needs to be pressure bonded to 620mm hereinafter, if early period
Pressing amount it is smaller, then being pressure bonded to 620mm pressing amount below for the last time can not be within the scope of the pressing amount of 30-70mm.
In the present embodiment, the preset value of self-locking device is 620mm, when pressing amount is in 620mm or more, not will start certainly
Lock, and when finally pressing thickness is pressure bonded to less than 620mm, about 610mm, starts self-locking, and self-locking device is by the top surface of plate
Four edges carry out it is self-locking, can effectively control the final thickness of plate.
It carries out preparing the composite expanded polystyrene guarantor of fire-retardant type by the pressing process provided in this embodiment being repeatedly molded
The air of warm plate, the composite expanded polystyrene thermal insulation plate of fire-retardant type is largely discharged, and hole is small, and internal crystallization water is few, water absorption rate
It reduces, heat insulation effect is good.Simultaneously in the curing process, parting bead, change caused by no pressure is unevenly distributed are not needed when stacking
Shape solves ventilating problem and only needs again interlude that blank is overturn.
Plate blank is stacked and is placed, is cut after solidification, the leftover pieces that cutting is generated form saw powder after crushing, will saw powder
It is added into raw material, the mass ratio for sawing powder and raw material is 1.1-1.3:1.Sawing powder is by the formation after the plate cutting after being molded
Leftover pieces obtain after crushed, in the present embodiment, to saw powder as filler, solve the problems, such as waste material.So that the entire production line
Solid waste is not discharged, corporate environment cost is greatly reduced.
In addition, a kind of composite expanded polystyrene thermal insulation plate of fire-retardant type is provided in the present embodiment, by above-mentioned non-ignitable
The drawing method of the composite expanded polystyrene thermal insulation plate of type, which is suppressed, to be obtained, and pressure-proof and snap-resistent tensile property is good, and fire protecting performance is preferable,
Thermal coefficient is lower, also, sucker and finishing room can form preferable negative pressure, be conducive to automated production.
With reference to embodiments to the composite expanded polystyrene thermal insulation plate of fire-retardant type and its drawing method of the invention into one
Step is illustrated.
Embodiment 1
Present embodiments provide a kind of drawing method of composite expanded polystyrene thermal insulation plate of fire-retardant type comprising:
Its raw material includes modified polystyrene material 32kg, the first cement 20kg and pretreated water mud 265kg, wherein
Modified polystyrene material is mixed to get by following raw material: 12 parts of polystyrene foam particles, 20 parts of emulsion-type interfacial agents；Cream
The solid content of liquid type interfacial agents is 20%.First cement includes special cement 100% by mass percentage；Pretreated water mud
It according to parts by weight include 130 parts of the second cement, 15 parts of powder of saw, 15 parts of coal ash, dispersible 5 parts and 100 parts of water of rubber powder；Wherein,
Second cement includes special cement 25% and ordinary cement 75% by mass percentage.
It first by modified polystyrene material and the first cement mixing, then mixes, is uniformly mixed with pretreated water mud again
Afterwards, be placed in molding apparatus, the initial thickness of raw material is 900mm, be then pressed and molded through five times, thickness successively become 800mm,
750mm, 700mm, 650mm and 600mm.Interval time is followed successively by 1s, 2s, 3s and 4s.Followed by the self-locking of limit 620mm
Device is locked, and is locked to 620mm, is demoulded after standing 12h, and plate blank is stacked and is placed, and when stacking does not need parting bead, after solidification
Cutting forms the composite expanded polystyrene thermal insulation plate of fire-retardant type.
Embodiment 2-5
Embodiment 2-5 provides a kind of drawing method of composite expanded polystyrene thermal insulation plate of fire-retardant type, component and reality
Apply that example 1 is identical, and difference is:
It in embodiment 2, is molded three times, raw material initial thickness is 890mm, is molded three times, thickness successively becomes
770mm,700mm,610mm.Interval time is followed successively by 1s and 3s, followed by limit 620mm self-locking device lock, lock to
620mm is demoulded after standing 16h.
It in embodiment 3, is molded through four times, raw material initial thickness is 910mm, is molded three times, thickness successively becomes
790mm,720mm,670mm,600mm.Interval time is followed successively by 2s, 3s and 3s, and the self-locking device followed by limit 620mm is anti-
Lock is locked to 620mm, is demoulded after standing 14h.
It in embodiment 4, is molded through five times, raw material initial thickness is 900mm, is molded through five times, and thickness successively becomes
810mm, 760mm, 710mm, 660mm and 610mm,.Interval time is followed successively by 1s, 2s, 3s and 4s, followed by limit
The self-locking device of 620mm is locked, and is locked to 620mm, is demoulded after standing 12h.
It in embodiment 5, is molded through five times, raw material initial thickness is 900mm, is molded through five times, and thickness successively becomes
790mm, 740mm, 690mm, 640mm and 605mm.Interval time is followed successively by 1s, 2s, 3s and 4s, followed by limit 620mm
Self-locking device lock, lock to 620mm, demoulded after standing 12h.
Embodiment 6-7
The composite expanded polystyrene thermal insulation plate of fire-retardant type that embodiment 6-7 is provided, drawing method is same as Example 1,
Difference is: component is different；
In embodiment 6, the component of conventional polystyrene thermal insulation plate in the prior art: ordinary portland cement 260Kg, again
Calcium powder 15Kg, coal ash 20Kg, early strength agent 1Kg, re-dispersible glue powder 10Kg, polystyrene foam particles 25Kg and water 210Kg.
In embodiment 7,1.2 times of original raw material quality of saw powder is additionally added in the component of embodiment 1.
In embodiment 8, raw material includes the first raw material (saw powder) and the second raw material, the quality of the first raw material and the second raw material
Than for 1.1:1, the second raw material includes modified polystyrene material 31kg, the first cement 20kg and pretreated water mud 240kg,
In, modified polystyrene material is mixed to get by following raw material: 13 parts of polystyrene foam particles, emulsion-type interfacial agents 20
Part；The solid content of emulsion-type interfacial agents is 20%.First cement includes special cement 96% and light water by mass percentage
Mud 4%；Pretreated water mud include according to parts by weight 120 parts of the second cement, 14.5 parts of coal ash, 4.5 parts of dispersible rubber powder and
101 parts of water；Wherein, the second cement includes special cement 30% and ordinary cement 70% by mass percentage.
In embodiment 9, raw material includes the first raw material (saw powder) and the second raw material, the quality of the first raw material and the second raw material
Than for 1.3:1, the second raw material includes modified polystyrene material 34kg, the first cement 20.5kg and pretreated water mud 258kg,
Wherein, modified polystyrene material is mixed to get by following raw material: 12 parts of polystyrene foam particles, emulsion-type interfacial agents 21
Part；The solid content of emulsion-type interfacial agents is 19%.First cement includes special cement 98% and light water by mass percentage
Mud 2%；Pretreated water mud includes 140 parts of the second cement, 15 parts of coal ash, 5 parts of dispersible rubber powder and water 98 according to parts by weight
Part；Wherein, the second cement includes special cement 35% and ordinary cement 65% by mass percentage.
Comparative example 1
Molded several times in embodiment 1 are become 1 time, are directly disposably pressure bonded to the raw material that initial thickness is 900mm
600mm is locked followed by the self-locking device of limit 620mm, is locked to 620mm, is demoulded after standing 12h.
Comparative example 2
Interval time in embodiment 1 in mold process is replaced with into 8s.
Comparative example 3
By the existing conventional primary pressure of group lease making of the polystyrene thermal insulation plate conventional in the prior art in embodiment 6
It closes, is directly pressure bonded to 600mm from 900mm, then locks to 620mm.
Experimental example 1
The composite expanded polystyrene thermal insulation plate sampling of fire-retardant type that embodiment 1 obtains is sent to Sichuan Province's construction engineering quality
Inspection center is detected, and detection project and testing result are as follows:
(1) dry density, compression strength and thermal coefficient are carried out to the composite expanded polystyrene thermal insulation plate sample of fire-retardant type
Detection, testing result is as follows:
(2) burning behavior class of the composite expanded polystyrene thermal insulation plate sample of fire-retardant type is detected, testing result
It is as follows:
(3) to the external thermal insulation system performance detection of the composite expanded polystyrene thermal insulation plate sample of fire-retardant type, detection knot
Fruit is as follows:
(4) weatherability of the composite expanded polystyrene thermal insulation plate sample of fire-retardant type is tested, testing result is as follows:
Wherein, as follows for the specific testing result of the tensile viscosity ruggedness test of upper table: on November 29th, 2018, to warp
System test specimen after atmospheric exposure test tests to test specimen tensile bond strength using eighth day of the twelfth lunar month tester.This test
Float coat and insulating layer tensile bond strength average value be 0.10MPa (breaking joint is cut to insulation layer surface), destroy position
In insulating layer, test result is as follows:
Experimental example 2
The performance of the embodiment 1-9 and comparative example 1-3 composite expanded polystyrene thermal insulation plate of fire-retardant type obtained is carried out
Detection, examination criteria please refer to above, and testing result is as follows:
As can be seen from the above table, the comprehensive performance of the present embodiment 1-5 and 7-9 is substantially better than comparative example 1-2, wherein real
The thermal coefficient for applying example 6 is excessively high, has been over 0.065W/ (mk), this is because using in embodiment 6 in the prior art
The component of conventional polystyrene thermal insulation plate, thermal coefficient is bad, and thermal insulation property is bad, and by mould three times in embodiment 2
It presses, five times compared to embodiment 1 are molded the increase of its thermal coefficient and compression strength reduces, therefore molded several times are to the property of product
There can be large effect.In addition, using one-step mould in comparative example 1, compression strength is small and tensile strength is less than 0.1, effect
It is poor.And in comparative example 2, the time being molded every time is increased, this will lead to cement solidification, it is not easy to be molded, finally be led
Cause properties of product not good enough.The multiple pressing of embodiment 6 is changed to one step press in comparative example 3, thermal coefficient and water absorption are bright
The reason of aobvious to increase, the thermal coefficient of embodiment 6 is not up to standard, this is based on its raw material, and the effect of embodiment 6 is better than comparative example
3 effect.
In conclusion the drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type provided in this embodiment, through multiple
Molding squeezes out the gap between the particle of raw material and air repeatedly, so that the structure of raw material is more preferably compact, sucker can be with finished product
Preferable negative pressure is formed, and then the plate absorption after cutting is got up, realizes automatic transportation or processing.Control is equipped with spy simultaneously
Fixed interval time further promotes pressing effect.In the first mold process, pressing amount is big, and interval time is small, is conducive to fast
Ram compression synthesis type, and in subsequent second mold process, pressing amount is small, and interval time is appropriately extended, and is able to ascend air
The air of horizontal and vertical burst size, the composite expanded polystyrene thermal insulation plate of fire-retardant type is largely discharged, and hole is small, internal crystallization
Water is few, water absorption rate reduces, and heat insulation effect is good.Simultaneously in the curing process, parting bead is not needed when stacking, no pressure is unevenly distributed
It is deformed caused by even, solves ventilating problem and only need to overturn blank in interlude.In addition, provided in the present embodiment
The composite expanded polystyrene thermal insulation plate of fire-retardant type, pressure-proof and snap-resistent tensile property is good, and fire protecting performance is preferable, and thermal coefficient is lower,
Also, sucker and finishing room can form preferable negative pressure, be conducive to automated production.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type, which is characterized in that it includes mixing raw material
After uniformly, through being at least molded three times, it is shaped to plate.
2. the drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type according to claim 1, which is characterized in that appoint
1-4s is divided between the meaning molding adjacent twice.
3. the drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type according to claim 1, which is characterized in that institute
It states and is at least molded three times including bouncing back at least once after first being pressed downwards with the first molding of the pressing amount of 80-120mm, and continue
Intermittent molding is carried out at least twice to bounce back after the second molding pressing downwards of the pressing amount of 30-70mm, is shaped to plate.
4. the drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type according to claim 3, which is characterized in that appoint
Interval time between meaning first molding adjacent twice is 1-2s, between arbitrarily adjacent twice second molding
Interval time is 3-4s.
5. the drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type according to claim 1 or 3, feature exist
In, the molded several times are five times, and the initial thickness of the composite expanded polystyrene thermal insulation plate of fire-retardant type is 890-910mm,
It being molded through five times, thickness successively becomes 790-810mm, 740-760mm, 690-710mm, 640-660mm and 600-610mm,
It locks, is locked to 620mm followed by the self-locking device of limit 620mm.
6. the drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type according to claim 5, which is characterized in that institute
Stating molded several times is five times, and the initial thickness of the composite expanded polystyrene thermal insulation plate of fire-retardant type is 900mm, Jing Wuci mould
Pressure, thickness successively become 800mm, 750mm, 700mm, 650mm and 600mm, and the self-locking device followed by limit 620mm is anti-
Lock, is locked to 620mm.
7. the drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type according to claim 5, which is characterized in that will
Plate blank stack place, cut after solidification, will cutting generate leftover pieces crush after formed saw powder, by the saw powder be added to
In the raw material, the mass ratio of the saw powder and the raw material is 1.1-1.3:1.
8. the drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type according to claim 1, which is characterized in that institute
Stating raw material includes the modified polystyrene material, the first cement and pretreatment cement that mass ratio is 30-35:19-21:238-270
Slurry, the pretreated water mud include 110-150 parts of the second cement, 14-16 parts of coal ash, dispersible rubber powder 4- according to parts by weight
6 parts and water 95-105 parts, when mixing the raw material, first by the modified polystyrene material and first cement mixing,
Then it is mixed again with the pretreated water mud.
9. the drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type according to claim 8, which is characterized in that institute
Stating the first cement by mass percentage includes special cement 90-100% and ordinary cement 0-10%, and second cement presses matter
Measuring percentage meter includes special cement 20-40% and ordinary cement 60-80%；The special cement includes aluminate cement, sulphur
One of aluminate cement, fluoroaluminate cement are a variety of.
10. a kind of composite expanded polystyrene thermal insulation plate of fire-retardant type, which is characterized in that it is using as claim 1-9 is any
The drawing method of the composite expanded polystyrene thermal insulation plate of fire-retardant type described in is suppressed.
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