CN105365186B - The drawing-in device of fire-retardant XPS extruded plastic foams plate - Google Patents
The drawing-in device of fire-retardant XPS extruded plastic foams plate Download PDFInfo
- Publication number
- CN105365186B CN105365186B CN201510871140.0A CN201510871140A CN105365186B CN 105365186 B CN105365186 B CN 105365186B CN 201510871140 A CN201510871140 A CN 201510871140A CN 105365186 B CN105365186 B CN 105365186B
- Authority
- CN
- China
- Prior art keywords
- hopper
- fire
- retardant
- frequency
- extruded plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/297—Feeding the extrusion material to the extruder at several locations, e.g. using several hoppers or using a separate additive feeding
-
- 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
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The drawing-in device of a kind of fire-retardant XPS extruded plastic foams plate of the present invention, it is characterised in that it includes screw extruder（1）, feed hopper（2）, the first hopper（3）, the second hopper（4）And frequency-change feeding device（5）, the feed hopper（2）It is arranged at screw extruder（1）Spout at, first hopper（3）The discharging opening of bottom is located at feed hopper（2）The left-half of top, second hopper（4）The discharge outlet of bottom and frequency-change feeding device（5）Charging aperture connection, frequency-change feeding device（5）Discharge nozzle road junction be located at right half part above feed hopper, wherein the first hopper（3）Interior placement PS pellets（6）, the second hopper（4）Interior placement fire retardant premix（7）.Therefore the present invention has the advantages of flexible product good flame retardation effect, simple production process, production safety, low cost.
Description
Technical field
The present invention relates to a kind of drawing-in device of fire-retardant XPS extruded plastic foams plate.
Background technology
XPS extruded plastic foam plates（Extruded polystyrene foam board）Foaming structure with closed pore, therefore thermal conductivity factor is small, tool
There is excellent heat-insulating property, be the first choice of various insulation constructions, but XPS extruded plastic foam plates are inflammable, fire is a little with therefore will adding
Fire retardant, reach fire retardant purpose.The compositional flame-retardant XPS extruded plastic foams such as expansible graphite, encapsulated red phosphorus can make hair
Foam material reaches fire retardant B1 levels, alternative poisonous hexabromocyclododecane flame retardant.
The production method of traditional addition fire retardant has two kinds：
The first production method is to add red phosphorus etc. that pasty state is made with expansible graphite or again TCPP, utilizes special infusion
Enter into the two level screw rod of foaming machine.Patent of invention：CN102990895.But TCPP is liquid, with the solid such as expansible graphite
Fire retardant composition pasty state fire retardant is that have certain ratio, must be injected when wanting and improving the fire resistance of expanded material more
Pasty state fire retardant, because the TCPP in pasty state fire retardant is liquid, the injection of excessive liquid will cause the motor of drive screw rod
Electric current is unstable and brings die pressure unstable, and die pressure shakiness can influence foaming forming technique.Therefore the method has office
It is sex-limited.
Second is universal method（With reference to the Adding Way of HBCD）, by expansible graphite, encapsulated red phosphorus
Mixed Deng solid flame retardant with PS pellets, barrel is added after mixing, mixed material enters one-level screw rod through barrel.This side
Though method is simple but may occur in which many problems in production：
1st, because graphite, encapsulated red phosphorus are powder, PS is pellet, can be well mixed by them, can give them
There is a banking process during feeding cylinder, powder, grain can produce segregation phenomenon in banking process.And the material in barrel enters spiral shell
It is a pile-up rejection process during cylinder, can also produces segregation phenomenon.So into the material in barrel be uneven.It can cause and set
Foaming is influenceed for the unstable of electric current.It can cause the unstable of fire resistance due to uneven.
2nd, encapsulated red phosphorus are combustibles, are ignited if the hard thing collision of two samples or friction, are mixed with graphite, PS pellets
It after conjunction or can burn, first, substantial amounts of air in compound be present, be had to and PS second, red phosphorus will play fire retardation
Ability is useful after expecting fully dispersed mixing, such as uses the product of red phosphorus flame-retardant.PS pellets can not with red phosphorus is fully dispersed mixes, so
It is particularly when material has just enter into screw rod and is caught fire due to the friction of screw rod in production.
3rd, because PS pellets are mixed with fire retardant with quantitative, fire retardant is such as increased and decreased in production to adjust foaming
Moulding process or change fire resistance it is very inconvenient, it is necessary to wait the material in barrel be finished after again by increase and decrease fire retardant after thing
Material is sent into barrel.Lack flexibility in technique.
Therefore be badly in need of seeking a kind of product good flame retardation effect, simple production process flexibly, low fire-retardant of production safety, cost
The production technology of the drawing-in device of the drawing-in device and its use of XPS extruded plastic foam the plates fire-retardant XPS extruded plastic foams plate.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of product good flame retardation effect, simple production process flexibly,
The drawing-in device of the low fire-retardant XPS extruded plastic foams plate of production safety, cost.
The object of the present invention is achieved like this：
A kind of drawing-in device of fire-retardant XPS extruded plastic foams plate, it includes screw extruder, feed hopper, the first hopper, second
Hopper and frequency-change feeding device, the feed hopper are arranged at the spout of screw extruder, and first feed hopper bottom goes out
Material mouth is located at the left-half above feed hopper, and the discharge outlet of second feed hopper bottom connects with the charging aperture of frequency-change feeding device
Connecing, the discharge nozzle road junction of frequency-change feeding device is located at the right half part above feed hopper, wherein PS pellets are placed in the first hopper, the
Fire retardant premix is placed in two hoppers.
As a preferred embodiment, the wherein discharge nozzle road junction of frequency-change feeding device and the discharging opening of the first hopper is in same level
On.
A kind of production technology of the drawing-in device of fire-retardant XPS extruded plastic foams plate, it is characterised in that using such as claim or
The drawing-in device of described fire-retardant XPS extruded plastic foams plate carries out feeding, fire retardant premix is added into the second hopper, by PS
Pellet is added into the first hopper；Be ready to high-pressure pump needs TCPP can start streamline, just start when open or not
Frequency-change feeding device is opened, the material needed for screw extruder is all supplied by the PS pellets in the first hopper, when streamline is opened
Begin to start to start frequency-change feeding device during note foaming agent, frequency opens smaller hello some fire retardant premix less at the beginning, to foaming
Start progressively to be enlarged to required frequency during shaping.
As a preferred embodiment, the fire retardant premix that the drawing-in device of fire-retardant XPS extruded plastic foams plate is supplied is no more than total material
40%.
As a preferred embodiment, fire retardant premix be 1 part of red phosphorus, it is expansible graphite 0.5-3 parts, PS powder 1-40 parts, anti-
Oxygen agent 0.01-0.2 parts, TCPP0.01-0.5 parts mix in mixer.
As a preferred embodiment, TCPP machine oil or vegetable oil substitute in fire retardant premix.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, PS pellets and fire retardant premix are fed into screw extruder respectively, can so solves the separation of pellet and powder
Phenomenon, although pellet and powder are fed respectively, they are the precentagewise same time to enter screw rod, can be incited somebody to action through screw rod
They are mixed, and foaming machine can be made to operate steadily, foamed products fire resistance stabilization.
2nd, the TCPP of the PS feed liquid states of red phosphorus, graphite and powdery is mixed into composition fire retardant premix, due to all
It is powder and a certain amount of TCPP of addition, so they will not be separated when being added in screw extruder.It is fire-retardant
Due to adding powdery PS in agent premix, can be mixed well with the red phosphorus of powdery, the red phosphorus so at one is collided
Or friction to during incendivity because side has the red phosphorus of PS presence in fact now to turn into fire retardant（Fire retardant premix now
Material can be considered by the product of red phosphorus flame-retardant）, so fire retardant premix it can not burn.TCPP addition can make what material mixed
More fully powder can be made not float simultaneously.
Therefore the present invention has the advantages of flexible product good flame retardation effect, simple production process, production safety, low cost.
Brief description of the drawings
Fig. 1 is the structural representation of the drawing-in device of the fire-retardant XPS extruded plastic foams plate of the present invention.
Wherein：
Screw extruder 1, feed hopper 2, the first hopper 3, the second hopper 4, frequency-change feeding device 5, PS pellets 6, fire retardant are pre-
Batch mixing 7.
Embodiment
Referring to Fig. 1, a kind of drawing-in device of fire-retardant XPS extruded plastic foams plate of the present invention, it includes screw extruder 1
（One-level screw rod）, feed hopper 2, the first hopper 3, the second hopper 4 and frequency-change feeding device 5, the feed hopper 2 be arranged at screw rod and squeeze
Go out at the spout of machine 1, the discharging opening of the bottom of the first hopper 3 is located at the left-half of the top of feed hopper 2, second material
The discharge outlet of 4 bottoms of struggling against is connected with the charging aperture of frequency-change feeding device 5, and the discharge nozzle road junction of frequency-change feeding device 5 is located at feed hopper
The right half part of top.Wherein the discharging opening at the discharge nozzle road junction of frequency-change feeding device 5 and the first hopper 3 is preferably in same level
On.PS pellets 6 are wherein placed in the first hopper 3, fire retardant premix 7 is placed in the second hopper 4, fire retardant premix 7 is red
1 part of phosphorus, expansible graphite（50 ~ 200 mesh）0.5-3 parts, PS powder 1-40 parts, antioxidant（Preferably antioxidant 1010 or anti-
Oxygen agent 168）0.01-0.2 parts, TCPP（Tricresyl phosphate（2- chloropropyls）Ester）0.01-0.5 parts（With material it is how many depending on material not
Conglomeration is defined）Fire retardant premix 7 is mixed into mixer.TCPP in fire retardant premix 7 also can with it is other as machine oil,
Vegetable oil etc. substitutes, but does not have fire retardation.
Operation principle：
If the total material required in screw extruder 1 is m parts, frequency-change feeding device 5 is not opened, then m parts material is all by the first material
The supply of bucket 3；If starting frequency-change feeding device 5, the fire retardant premix 7 supplied is a parts, then remaining b（b=m-a）Part material is by the
PS pellets 6 in one hopper 3 are filled automatically.The fire retardant premix 7 that the drawing-in device of this fire-retardant XPS extruded plastic foams plate is supplied with
40% no more than total material is advisable.Because what the drawing-in device of this fire-retardant XPS extruded plastic foams plate utilized is natural phenomena i.e. material
Stocking angle, therefore frequency-change feeding device should not be fed excessively.
Method of work：Fire retardant premix 7 is added into the second hopper 4, PS pellets 6 are added into the first hopper 3；
Get out high-pressure pump（At two level screw rod）The TCPP needed can start streamline, just can not drive frequency-change feeding device 5 during start,
Material needed for screw extruder 1 is all supplied by the PS pellets 6 in the first hopper 3, when streamline（At two level screw rod）
Start to start to start frequency-change feeding device 5 when noting foaming agent, frequency opens smaller hello some fire retardant premix 7 less at the beginning（This
Sample, which is done, can save fire retardant）, start progressively to be enlarged to required frequency during shaping to foaming.
This feeding manner need to only adjust one variable of frequency-change feeding device, can debug out the maximum addition of fire retardant premix
Amount, because the excessive addition of fire retardant premix can influence to foam, cross and do not reach flame retardant effect at least.So work as frequency-change feeding device
Added fire retardant premix has expected that influence is foamed, illustrate plus it is too many, progressively reduce the frequency of frequency-change feeding device, until
The fire retardant premix fed does not influence the maximum adding quantity that foaming can be considered fire retardant premix.
Embodiment one：
1 part of red phosphorus, 2 parts of expansible graphite, 4 parts of PS powders, 0.02 part of antioxidant, TCPP0.03 parts composition fire retardant is pre-
Batch mixing.When fire retardant premix and PS pellets are 3:When 7.Red phosphorus content is in the fire-retardant XPS extruded plastic foams plate produced
4.28%th, graphite 8.57%, the anti-flammability of fire-retardant XPS extruded plastic foams plate after the TCPP of total material quality 2% is injected on two level screw rod
It can reach B1 levels.
Embodiment two：
1 part of red phosphorus, 2 parts of expansible graphite, 4 parts of PS powders, 0.02 part of antioxidant, TCPP0.03 parts composition fire retardant is pre-
Batch mixing.When fire retardant premix and PS pellets are 3.5:6.5 when.Red phosphorus content is in the fire-retardant XPS extruded plastic foams plate produced
5%th, graphite 10%, the anti-flammability of fire-retardant XPS extruded plastic foams plate is reachable after the TCPP of injection total material quality 1% on two level screw rod
To B1 levels.
Embodiment three：
1 part of red phosphorus, 2 parts of expansible graphite, 4 parts of PS powders, 0.02 part of antioxidant, TCPP0.03 parts composition fire retardant is pre-
Batch mixing.When fire retardant premix and PS pellets are 4:When 6.Red phosphorus content is in the fire-retardant XPS extruded plastic foams plate produced
5.71%th, graphite 11.43%, need not inject TCPP on two level screw rod, and the anti-flammability of fire-retardant XPS extruded plastic foams plate can reach B1
Level.
Claims (4)
1. a kind of production technology of the drawing-in device of fire-retardant XPS extruded plastic foams plate, it is characterised in that use a kind of fire-retardant XPS extrusion moldings
The drawing-in device of foamed board carries out feeding, by fire retardant premix（7）Add to the second hopper（4）In, by PS pellets（6）Add
To the first hopper（3）In；Streamline can be started by getting out the TCPP of high-pressure pump needs, opened when just starting shooting or do not opened change
Frequency feeder（5）, screw extruder（1）Needed for material all by the first hopper（3）In PS pellets（6）Supply, Deng Daoliu
Waterline starts to start to start frequency-change feeding device when noting foaming agent（5）, frequency is opened at the beginning smaller feeds some fire retardants premix less
Material（7）, start progressively to be enlarged to required frequency during shaping to foaming；
A kind of drawing-in device of above-mentioned fire-retardant XPS extruded plastic foams plate includes screw extruder（1）, feed hopper（2）, the first hopper
（3）, the second hopper（4）And frequency-change feeding device（5）, the feed hopper（2）It is arranged at screw extruder（1）Spout at,
First hopper（3）The discharging opening of bottom is located at feed hopper（2）The left-half of top, second hopper（4）Bottom
Discharge outlet and frequency-change feeding device（5）Charging aperture connection, frequency-change feeding device（5）Discharge nozzle road junction be located above feed hopper
Right half part, wherein the first hopper（3）Interior placement PS pellets（6）, the second hopper（4）Interior placement fire retardant premix（7）；
Fire retardant premix be 1 part of red phosphorus, expansible graphite 0.5-3 parts, PS powder 1-40 parts, antioxidant 0.01-0.2 parts,
TCPP0.01-0.5 parts mix in mixer.
A kind of 2. production technology of the drawing-in device of fire-retardant XPS extruded plastic foams plate according to claim 1, it is characterised in that
Wherein frequency-change feeding device（5）Discharge nozzle road junction and the first hopper（3）Discharging opening in same level.
A kind of 3. production technology of the drawing-in device of fire-retardant XPS extruded plastic foams plate according to claim 1, it is characterised in that
The fire retardant premix that the drawing-in device of fire-retardant XPS extruded plastic foams plate is supplied is no more than the 40% of total material.
A kind of 4. production technology of the drawing-in device of fire-retardant XPS extruded plastic foams plate according to claim 1, it is characterised in that
TCPP machine oil or vegetable oil substitute in fire retardant premix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871140.0A CN105365186B (en) | 2015-12-02 | 2015-12-02 | The drawing-in device of fire-retardant XPS extruded plastic foams plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510871140.0A CN105365186B (en) | 2015-12-02 | 2015-12-02 | The drawing-in device of fire-retardant XPS extruded plastic foams plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105365186A CN105365186A (en) | 2016-03-02 |
| CN105365186B true CN105365186B (en) | 2017-12-05 |
Family
ID=55368062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510871140.0A Expired - Fee Related CN105365186B (en) | 2015-12-02 | 2015-12-02 | The drawing-in device of fire-retardant XPS extruded plastic foams plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105365186B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202045775U (en) * | 2010-12-16 | 2011-11-23 | 惠州市鼎晨新材料有限公司 | Production equipment for making black master batch from waste plastics |
| CN202965058U (en) * | 2012-12-05 | 2013-06-05 | 赵祖良 | High-pressure injection system of grain pasty fire retardant |
| CN104403216A (en) * | 2014-09-16 | 2015-03-11 | 北京天利合兴保温建材有限责任公司 | Modified plastic extruded board material and production method of modified plastic extruded board |
| CN204309150U (en) * | 2014-07-03 | 2015-05-06 | 江苏铸明节能科技有限公司 | The agitating device of extruded polystyrene board |
| CN205291524U (en) * | 2015-12-02 | 2016-06-08 | 赵祖良 | Feeding device of fire -retardant XPS extrusion molding foaming board |
-
2015
- 2015-12-02 CN CN201510871140.0A patent/CN105365186B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202045775U (en) * | 2010-12-16 | 2011-11-23 | 惠州市鼎晨新材料有限公司 | Production equipment for making black master batch from waste plastics |
| CN202965058U (en) * | 2012-12-05 | 2013-06-05 | 赵祖良 | High-pressure injection system of grain pasty fire retardant |
| CN204309150U (en) * | 2014-07-03 | 2015-05-06 | 江苏铸明节能科技有限公司 | The agitating device of extruded polystyrene board |
| CN104403216A (en) * | 2014-09-16 | 2015-03-11 | 北京天利合兴保温建材有限责任公司 | Modified plastic extruded board material and production method of modified plastic extruded board |
| CN205291524U (en) * | 2015-12-02 | 2016-06-08 | 赵祖良 | Feeding device of fire -retardant XPS extrusion molding foaming board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105365186A (en) | 2016-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101531770B (en) | Preparation and application of open-cell foamed polyolefin | |
| JP4436435B1 (en) | Molding material for extrusion foam molding and method for manufacturing the same, wood foam molded body manufactured using the molding material, method for manufacturing the wood foam molded body, and manufacturing apparatus | |
| CN104231462B (en) | GPES rigid foam composite plastic warming plates and its manufacture method | |
| CN103524950A (en) | PVC extrusion grade particulate material and preparation method thereof, and preparation method of extrusion product | |
| CN110815693A (en) | Wood-plastic physical micro-foaming extrusion injection molding machine and molding process | |
| CN101827884A (en) | Manufacturing method of foamed heat-insulating material utilizing paper and starch | |
| CN105885451A (en) | Foamed porous wood-plastic composite and preparation method thereof | |
| CN102408648A (en) | High-filling PVC (polyvinyl chloride) wood plastic foamed floor and preparation method thereof | |
| CN102453278B (en) | Foam polypropylene material in pulsating shear force field and preparation method thereof | |
| CN101914247A (en) | Device and method for continuously forming thermoplastic plastic foaming thick plate | |
| CN102766302A (en) | Formula for plastic pipe acrylonitrile butadiene styrene (ABS) modified hard chlorinated polyvinyl chloride and pipe preparation method | |
| CN105365186B (en) | The drawing-in device of fire-retardant XPS extruded plastic foams plate | |
| CN205291524U (en) | Feeding device of fire -retardant XPS extrusion molding foaming board | |
| RU2489946C1 (en) | Line for production of extruded feedstuffs | |
| ITMI20002615A1 (en) | EQUIPMENT FOR EXTRUDING FOIL OR SHEET IN EXPANDED POLYMER | |
| CN202517622U (en) | Forced feeding machine for plastic mix | |
| CN102729480A (en) | Method for producing low-foaming PVC (polyvinyl chloride) crust board | |
| CN204773111U (en) | A equipment for preparing prefoam EPO bead | |
| CN104139467B (en) | The process equipment of a kind of fire-retardant master granule and method | |
| JP2010138337A (en) | Method for producing molded article containing wood flour, and molded article | |
| CN109294045A (en) | A kind of anti-electrostatic fire retardant masterbatch and preparation method thereof | |
| CN206815572U (en) | Waste foamed cotton polyurethane fireproof block machining production line | |
| CN202965058U (en) | High-pressure injection system of grain pasty fire retardant | |
| CN203888172U (en) | Conical metering compression feeding machine | |
| CN211363370U (en) | Building board construction forming structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20181202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |