CN107035285B - A kind of fireproof door frame - Google Patents

A kind of fireproof door frame Download PDF

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Publication number
CN107035285B
CN107035285B CN201710450745.1A CN201710450745A CN107035285B CN 107035285 B CN107035285 B CN 107035285B CN 201710450745 A CN201710450745 A CN 201710450745A CN 107035285 B CN107035285 B CN 107035285B
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substrate
stalk
door frame
fireproof door
fire
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CN107035285A (en
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石植
石竹武
徐正明
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/161—Profile members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
    • E06B1/04—Frames for doors, windows, or the like to be fixed in openings
    • E06B1/52—Frames specially adapted for doors
    • E06B1/526—Frames specially adapted for doors for door wings that can be set up to open either left or right, outwards or inwards, e.g. provided with grooves for easily detachable hinges or latch plates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/16—Halogen-containing compounds
    • C08K2003/166—Magnesium halide, e.g. magnesium chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/222—Magnesia, i.e. magnesium oxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • C08K2003/3063—Magnesium sulfate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C08K2003/324—Alkali metal phosphate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • 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
    • C08L2201/00—Properties
    • C08L2201/06—Biodegradable

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

The invention discloses a kind of fireproof door frames, including first substrate and the second substrate, the first substrate is located at fireproof door frame towards the side of wall, and the second substrate is located at fireproof door frame towards the side of door leaf, first substrate and the second substrate using inorganic binder and rifle nail connection；The first substrate and the second substrate cut out to obtain using fire-retardant fireproof stalk board according to certain size, and the one side segmentation that the first substrate is contacted with wall reinforces strong reinforced using multiple U-shaped steel.The present invention has abandoned traditional wooden structures doorframe, and creative replaces timber to manufacture doorframe using environmental protection flame retardant stalk board, has saved resource, has effectively reduced crop straw burning bring environmental pollution；Fireproof door frame combustibility of the present invention meets A1 grades of prescribed requirement, and flue gas toxity meets the prescribed requirement of safe level-one, and performance is very excellent.

Description

A kind of fireproof door frame
Technical field
The present invention relates to a kind of doorframe, especially a kind of fireproof door frame profile belongs to fireproof material technology field.
Background technique
With the rapid rising of building trade, the manufacturing technology of fire resistant doorsets also further develops and mature, the matter of fire resistant doorsets Amount becomes the necessary factor of each family selection；And as fire resistant doorsets installation carrier doorframe selection be also it is of crucial importance, it is traditional Fireproof door frame is generally made of steel or wood.Steel door frame, which is typically provided in, must support the situation that fire resistant spreads one hour or more Under；And wood door be usually easier by fire invasion, thus with needing support fire resistant sprawling one hour door below on.
The Chinese patent of Patent No. 00215291.6 discloses a kind of combined door frame, it includes surrounding layer and is located at outer Liner layer in covering, surrounding layer are made of aluminium alloy extrusions, and liner layer is by timber, artificial high-density plate and chemical packing material It is made, this doorframe is aesthetic in appearance, is not easy burn into long service life, but its fire protecting performance is not production cost very well It is relatively high.The Chinese patent of Patent No. 00215291.6 discloses a kind of combined door frame, it include surrounding layer and be located at outsourcing Liner layer in layer, surrounding layer are made of aluminium alloy extrusions, and liner layer is by timber, artificial high-density plate and chemical packing material system At this doorframe is aesthetic in appearance, is not easy burn into long service life, but its fire protecting performance is not very well, and production cost also compares It is higher.The Chinese patent of Patent No. 200720062107.4 discloses a kind of Wooden fireproof door frame, including door frame and dress Decoration panel, door frame include counter-fire front, counter-fire side, carry on the back fiery face, the mounting surface being mounted on wall, and match with gate flap The stifled fiery face closed and face of banking up a fire, door frame counter-fire front, counter-fire side and carrying on the back between fiery face and decoration panel have with a thickness of The fire-retardant fireproof plate of 5mm, in the stifled fiery face of door frame and the fire-retardant fireproof having between face and decoration panel with a thickness of 3mm of banking up a fire Plate.Though can be seen that this kind of doorframe tool flame retardant effect by above-mentioned, but its structure is complex, and same production technology is also relative complex.
However, either existing steel-made fire-retardant door doorframe or fire-proof wooden door doorframe, fire protecting performance also far away can Meet the high request of modern industry sphere of life, therefore, exploitation fire protecting performance is more excellent, the high high-performance fire-resistant of fire-protection rating Door frame is a significant and very necessary job.
Summary of the invention
It is to be the provision of a kind of fire prevention that fire protecting performance is excellent it is an object of the invention to overcome the deficiencies in the prior art Door frame, the fireproof door frame are cut out using the environment-friendly stalk plate of high fire-retardance smoke suppressing, and the fireproof door frame is 1200 DEG C or more at a high temperature of it is fire-retardant be not carbonized, be indeformable, without harmful smoke and gas body generate, and high temperature it is not thermally conductive, meet water it is not swollen It is swollen, thoroughly solve the problems such as wooden frame wood material is fire-retardant to be not thorough, and burning is easy.
To solve the above-mentioned problems, the technical scheme adopted by the invention is as follows:
A kind of fireproof door frame, including first substrate (121) and the second substrate (122), which is characterized in that first base Plate (121) is located at fireproof door frame towards the side of wall, and the second substrate is located at fireproof door frame towards the side of door leaf, First substrate (121) and the second substrate (122) are using inorganic binder and rifle nail connection；The first substrate (121) and second Substrate (122) is cut out to obtain using fire-retardant fireproof stalk board according to certain size, and the first substrate (121) and wall The one side segmentation of contact is reinforced strong (123) using the zinc-plated steel of multiple U-shapeds and is reinforced；Wherein, the fireproof door frame uses Environmental protection flame retardant stalk board is cut out, and the raw material composition of the stalk board includes: 50~100 parts of stalk particle, and fire retardant 10~ 200 parts, 1~50 part of binder；The fire retardant raw material composition include magnesia, magnesium chloride, magnesium sulfate, nanometer antimony oxide, Ultra-fine SILICA FUME, citric acid, sodium phosphate and boric acid, the binder are inorganic binder, and raw material composition includes Aluminum sol, water Glass, polyvinyl alcohol and deionized water.
Wherein, the width of the first substrate (121) is greater than the width of the second substrate (122).
The side of the first substrate (121) and the second substrate (122) direction outdoors is mutually flush composition mounting surface；It is described First substrate (121) is spaced apart from each other composition cascaded surface towards the side in door with the second substrate (122).
It is that the offcut of steel plate discarded using industrial process is processed to obtain that the U-shaped steel, which reinforces strong (123), size root It is adjusted according to the width and thickness of first substrate (121).
In terms of percentage composition, the content of fire retardant raw material composition be respectively magnesia 20~35%, magnesium chloride 10~ 20%, magnesium sulfate 5~15%, nanometer antimony oxide 5~20%, ultra-fine SILICA FUME 5~20%, 0.1~2% citric acid, 0.5~ 3% sodium phosphate and 0.5~2% boric acid；The content of the inorganic binder raw material composition is respectively Aluminum sol 1~5%, waterglass 5~10%, polyvinyl alcohol 5~20% and deionized water 70~95%.
The stalk is selected from Wheat Straw, rice straw, corn stover, cotton stalk, peanut shell, bamboo branch leaf, rape straw At least one of stalk；For the moisture content of the stalk less than 12%, the length after chaffcutter shreds is 5~10cm.
The magnesia is formed by magnesite or dolomite calcination, and the calcining is light-burned, calcination temperature 550-750 ℃。
In addition, the preparation method of the environmental protection flame retardant stalk board successively includes the following steps: raw material agricultural crop straw → tear open Bundle → removing impurity → crushing → metering, distributing, packaging → application flame-retardant mixture → application binder mixtures → mat formation into mould → Pre-molding → sizing cold pressing → maintenance → demoulding → semi-finished product saw when → drying → veneer → product is sawed → polishing → finished product Detection storage.
In the inventive solutions, the stalk for manufacturing environmental protection flame retardant stalk board is basic material, is carried out to stalk During chopping, to the length of stalk by certain requirement, because stalk is divided into the auxiliary dress of a point table, sandwich layer, surface layer is staple fiber, The flatness and compactness and waterproofness of plate face can be improved in fibre length 3-5mm；Sandwich layer is long fibre, fibre length 5-10mm, The advantages such as internal bond strength and anti-folding, the compression strength of plate can be improved.
The binder of manufacture environmental protection flame retardant stalk board is primarily used to adherency straw particle, makes continuous uniform Structure；Binder of the invention is different from the organic binder of previous industrial application, is the inorganic binder of independent research, the nothing The composition of machine binder can be Aluminum sol, waterglass, polyvinyl alcohol and deionized water；Wherein Aluminum sol, waterglass, polyethylene In the technical solution of pure and mild deionized water, polyvinyl alcohol is that a kind of colourless, nontoxic, non-corrosive, biodegradable green is viscous Agent is tied, when aqueous solution and stalk particle contact, the close contact and intermolecular suction-operated shape of PVA molecule can be relied on At the continuous film with certain mechanical performance, so that stalk particle is uniformly adhered to each other；But due to PVA carbochain Length and the size of alcoholysis degree directly affect the physical mechanical property of film, so that can not when polyvinyl alcohol is separately as binder Good stalk board is manufactured completely, and the present invention is by being added a certain proportion of Aluminum sol and waterglass, on the one hand by by aluminium Colloidal dispersion increases the bonding stability and mechanical performance of polyvinyl alcohol at high temperature, another aspect Aluminum sol into polyvinyl alcohol It can be combined into sial synthetic with the silicon in waterglass, at spaced point shape reticular structure living, hence it is evident that improve polyvinyl alcohol bonding The high temperature resistance and adhering and filming performance energy of agent, and due to the presence of waterglass, stalk board is also enhanced to a certain extent Corrosion resistance.
The fire retardant main function of manufacture environmental protection flame retardant stalk board is to prevent the flammability of straw particle, raw material Composition includes magnesia, magnesium chloride, magnesium sulfate, antimony oxide, ultra-fine SILICA FUME, citric acid, sodium phosphate and boric acid；Above-mentioned fire-retardant In agent component, magnesia, magnesium chloride, magnesium sulfate are three kinds of basic ingredients；Magnesia is formed by magnesite or dolomite calcination, institute State calcining be it is light-burned, calcination temperature is 550-750 DEG C, and light calcined magnesia fusing point is greater than 2800 DEG C, has preferable fire prevention anti- Rotten effect, magnesium chloride have the function of fire resistant flame retardant using industrial magnesium chloride hexahydrate, react with magnesia and generate 5Mg (OH)2· MgCl2·8H2O phase generates intensity, and plate is made to have excellent low temperature resistance and fire protecting performance；And magnesium sulfate is industrial MgSO4·7H2O, fineness can react with magnesia in 70-80 mesh and generate intensity, improve the water-resistance and moisture resistance of plate；So And be only three kinds sufficiently as fire retardant with magnesia, magnesium chloride, magnesium sulfate, the effect of resistance to lasting high temperature can not be reached Fruit, the performance for improving fire retardant by addition antimony oxide and ultra-fine SILICA FUME of the invention；Wherein, nanometer antimony oxide Meet with ultra-fine SILICA FUME and be added into basic flame-retardant composition, the every aspect of stalk particle is penetrated into the state of dispersion, no But it can be effectively improved the fire retardant performance of stalk board, the impact strength and toughness of material can also be improved, and have both suppression cigarette Effect.
In conclusion the invention has the advantages that are as follows: (1) present invention has abandoned traditional wooden structures doorframe, Creative replaces timber to manufacture fireproof door frame using fire-retardant fireproof stalk board, and in fire, which can It is fire-retardant well, play the role of fireproof completely；In addition, the first substrate segmentation of doorframe of the present invention uses multiple U-shaped galvanized steels Matter is reinforced being good for and be reinforced, and further strengthens the intensity of doorframe, and the steel is reinforced strong being the steel plate discarded using engineering Leftover pieces are processed to obtain, and realize the recycling of waste, are effectively saved resource；
(2) fire-retardant fireproof stalk board of the present invention overcomes previous fire-retardant stalk board and brings content of formaldehyde using organic urea-formaldehyde glue High defect, using inorganic glue as adhesive, prepared stalk board content of formaldehyde is down to 0.03-0.05mg/L, far below the world The 0.5mg/L of standard requirements, environmental-protecting performance is very good, provides a new approach for industrialization large-scale application；
(3) fire-retardant stalk board flame retardant property of the invention is very excellent, by National Fire building material quality supervision and inspection Heart detection, according to standard GB/T 8624-2012 " construction material and classification of combustion properties of building materials and products ", GB/T 20285-2006 " hazardous classification of tobacco-producing toxicity of materials ", inspection result is shown, product of the present invention material combustion performance meets A1 grades of prescribed requirement, I.e. combustibility reaches A1 grades non-ignitable, and flue gas toxity meets the prescribed requirement of safe level-one, i.e. flue gas toxity reaches safe level-one AQ1；
(4) the fire-retardant stalk board of present invention institute is surveyed according to GB/T4897-2003 with very excellent resistance to boiling water boiling performance Internal bond strength numerical value is 1.05-1.12MPa after obtaining 5 hours boiling water boilings, and measuring 24 hours thickness swelling rates is only 1.7%；
(5) fire-retardant stalk board of the invention, is measured according to method as defined in GB/T 17657-2013, fire-retardant stalk The density of plate is greater than 1000Kg/m3, the static bending strength under panel normal condition is more than or equal to 25 megapascal/millimeter, and elasticity modulus is big In being equal to 2400 megapascal/millimeter, moisture content is 7~12%.
Detailed description of the invention
For the clearer technical solution for illustrating the embodiment of the present invention, below to needing attached drawing to be used to make in embodiment It is simple to introduce.It should be appreciated that the following drawings illustrates only certain embodiments of the invention, it is not construed as to model of the present invention The limitation enclosed.To those skilled in the art, without creative efforts, it can obtain according to these attached drawings Obtain other accompanying drawings.
Fig. 1 is the overall structure diagram of fire resistant doorsets in the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of fireproof door frame in the embodiment of the present invention.
Fig. 3 be Fig. 2 structural schematic diagram from A-A to sectional plane.
Wherein, the corresponding title of appended drawing reference is as follows:
100- fire resistant doorsets；
110- fireproof door leaf；
120- fireproof door frame；
130- hinge for fireproof；
121- first substrate；
122- the second substrate；
The zinc-plated steel of 123-U is reinforced strong.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing, to the present invention Technical solution in embodiment carries out clear, complete description.Obviously, described embodiment is that a part of the invention is implemented Example, instead of all the embodiments.
Therefore, the model of claimed invention is not intended to limit to the detailed description of the embodiment of the present invention below It encloses, but is merely representative of section Example of the invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not having Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature and technology in embodiment and embodiment in the present invention Scheme can be combined with each other.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
It should also be noted that, in the description of the present invention unless specifically defined or limited otherwise, term " connection " is answered It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be direct phase It even, can also be indirectly connected through an intermediary.To those skilled in the art, can understand as the case may be above-mentioned The concrete meaning of term in the present invention.
Embodiment 1
Referring to Fig.1, Fig. 1 is the overall structure diagram of fire resistant doorsets 100 in the embodiment of the present invention, and fire resistant doorsets 100 include door Fan 110 and doorframe 120, door leaf 110 and doorframe 120 are connected by hinge 130, and door leaf 110 and doorframe 120 are rectangular frame Structure, size can formulate cutting according to actual needs and accordingly, be not construed as limiting.The material of door leaf 110 in the embodiment of the present invention Matter is not construed as limiting, and can be wooden boards or other materials profile.
Referring to Fig. 2, Fig. 2 is the structural schematic diagram of fireproof door frame 120 in the embodiment of the present invention, and fireproof door frame is all made of Environmental protection flame retardant stalk board is cut out.
It is the sectional view along A-A of Fig. 2 referring to Fig. 3, Fig. 3.Fireproof door frame 120 includes first substrate 121 and the second substrate 122, first substrate 121 is located at fireproof door frame towards the side of wall, and the second substrate 122 is located at fireproof door frame towards door leaf Side；The width of first substrate 121 is greater than the width of the second substrate 122；First substrate 121 and the second substrate 122 use nothing Machine binder and rifle nail connection.In addition, the one side segmentation that the first substrate 121 is contacted with wall uses the zinc-plated steel of multiple U Reinforce strong 123 to be reinforced, plays the role of reinforcing doorframe intensity, and the steel is reinforced strong being the steel plate discarded using engineering Leftover pieces are processed to obtain, and realize the recycling of waste, are effectively saved resource.
Manufacture the raw material composition of the present embodiment environmental protection flame retardant stalk board are as follows: stalk particle 40Kg, fire retardant 15Kg, binder 10Kg；Wherein, the content of the fire retardant raw material composition is respectively magnesia 4.5Kg, magnesium chloride 2.25Kg, magnesium sulfate 2.25Kg, nanometer antimony oxide 2.25Kg, ultra-fine SILICA FUME 3Kg, 0.15Kg citric acid, 0.3Kg sodium phosphate, 0.3Kg boric acid；It is described The content of inorganic binder raw material composition is respectively Aluminum sol 0.3Kg, waterglass 0.5Kg, polyvinyl alcohol 0.8Kg and deionized water 8.4Kg。
The manufacturing process of the present embodiment environmental protection flame retardant stalk board are as follows:
(1) agricultural crop straw removal of impurities crushes: special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and The stalk cleaned out is subjected to natural drying drying, controls the moisture content of stalk between about 10%；Then stalk is distinguished It is input to table, crushed in sandwich layer pulverizer, surface layer pulverizer is crushed to 3-5mm, and sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging: original is weighed according to table, sandwich layer stalk particle 40Kg, fire retardant 15Kg, binder 10Kg respectively Then material stirs according to different stalk particle, fire retardant and binder are placed in different vessels of table, sandwich layer stalk respectively Even formation table, sandwich layer mixture；
(3) mat formation mould: the table, sandwich layer mixture are respectively delivered in spreading machine, it is mixed according to surface layer surface layer of mating formation Material is closed, sandwich layer is mated formation sandwich layer mixture, and spreading machine uniformly mats formation table, sandwich layer mixture point 50 times onto backing plate, formation 50 Mat formation and mix the bed of material, then every, which is mated formation, mixes the bed of material and be sent in mold together with backing plate；
(4) pre-molding: under the humidity that room temperature and dew-point temperature are 75 degrees Celsius, the mixture on backing plate is applied 3.8×105The pressure of newton forms the prefabricated slab of the stalk fibre after precompressed 15s；
(5) sizing cold pressing: at normal temperature, 50 prefabricated slabs of stalk fibre are put into Mould locking machine together with the backing plate In structure, and apply 1.3 × 107The pressure of newton, constant pressure 20min form the stalk fibre base of certain altitude；
(6) mode locking: the stalk fibre base that above-mentioned sizing cold pressing step is obtained locks in a mold together with the backing plate, and 1.2 × 10 are applied to it7The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) maintenance demoulding: unlock the stalk fibre sizing slab, and the stalk fibre is taken out from the backing plate Dimension sizing slab；
(8) dry: above-mentioned stalk fibre sizing slab being put into infrared cyclic drying case dry 20s, obtains environmentally friendly resistance Fire stalk boards half-finished product；The infrared band that the infrared cyclic drying case is set is 1-3 micron
(9) semi-finished product saw side: carrying out cutting edge processing to above-mentioned homogeneous straw core boards half-finished product according to actual demand, obtain phase Answer the environmental protection flame retardant stalk boards half-finished product of length and width；
(10) sanding: the environmental protection flame retardant stalk boards half-finished product after polishing above-mentioned saw side using sander obtains the environmental protection Fire-retardant stalk board finished product；
(11) it is packed and stored: quality examination being carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product is packaged And it is put in storage preservation.
Performance measurement: (1) boiling is tested: take the stalk board of manufacture to be placed in boiling 5h in 100 DEG C of boiling water, it is then dry in 60 DEG C Dry, rear internal bond strength numerical value is 1.08MPa after measuring boiling, and intensity is 1.20MPa before boiling；
(2) combustion experiment, experimental result are carried out according to method as defined in GB8624-2012 are as follows: gross calorific value PCS is about 1.5MJ/Kg, fire growth rate index FIGR0.2MJ are about 20W/s, and heat always discharges about 2.8MJ in 600s, and flame is horizontal It is less than sample edge to sprawling length, flue gas generating rate index is about 0.8m2/s2, total smoke-producing amount is about 34m in 600s2, reach To A1 grade standard.
(3) it is measured according to method as defined in GB/T 17657-2013, the density of the fire-retardant stalk board of the present embodiment is about 1020Kg/m3, the static bending strength under panel normal condition is about 35 megapascal/millimeter, and elasticity modulus is about 2490 megapascal/millimeter, Moisture content is 8.4%.
(4) it is measured according to method as defined in GB18580-2002, the fire-retardant stalk board burst size of methanal of the present embodiment is about For 0.05mg/L.
Comparative example 1
The comparative example fireproof door frame is the same as embodiment 1；
Manufacture the raw material composition of this comparative example environmental protection flame retardant stalk board are as follows: stalk particle 40Kg, fire retardant 15Kg, binder 10Kg；Wherein, the content of the fire retardant raw material composition is respectively magnesia 4.5Kg, magnesium chloride 2.25Kg, magnesium sulfate 2.25Kg, ultra-fine SILICA FUME 5.25Kg, 0.15Kg citric acid, 0.3Kg sodium phosphate, 0.3Kg boric acid；The inorganic binder raw material The content of composition is respectively Aluminum sol 0.3Kg, waterglass 0.5Kg, polyvinyl alcohol 0.8Kg and deionized water 8.4Kg.
The manufacturing process of the present embodiment environmental protection flame retardant stalk board are as follows:
(1) agricultural crop straw removal of impurities crushes: special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and The stalk cleaned out is subjected to natural drying drying, controls the moisture content of stalk between about 10%；Then stalk is distinguished It is input to table, crushed in sandwich layer pulverizer, surface layer pulverizer is crushed to 3-5mm, and sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging: original is weighed according to table, sandwich layer stalk particle 40Kg, fire retardant 15Kg, binder 10Kg respectively Then material stirs according to different stalk particle, fire retardant and binder are placed in different vessels of table, sandwich layer stalk respectively Even formation table, sandwich layer mixture；
(3) mat formation mould: the table, sandwich layer mixture are respectively delivered in spreading machine, it is mixed according to surface layer surface layer of mating formation Material is closed, sandwich layer is mated formation sandwich layer mixture, and spreading machine uniformly mats formation table, sandwich layer mixture point 50 times onto backing plate, formation 50 Mat formation and mix the bed of material, then every, which is mated formation, mixes the bed of material and be sent in mold together with backing plate；
(4) pre-molding: under the humidity that room temperature and dew-point temperature are 75 degrees Celsius, the mixture on backing plate is applied 3.8×105The pressure of newton forms the prefabricated slab of the stalk fibre after precompressed 15s；
(5) sizing cold pressing: at normal temperature, 50 prefabricated slabs of stalk fibre are put into Mould locking machine together with the backing plate In structure, and apply 1.3 × 107The pressure of newton, constant pressure 20min form the stalk fibre base of certain altitude；
(6) mode locking: the stalk fibre base that above-mentioned sizing cold pressing step is obtained locks in a mold together with the backing plate, and 1.2 × 10 are applied to it7The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) maintenance demoulding: unlock the stalk fibre sizing slab, and the stalk fibre is taken out from the backing plate Dimension sizing slab；
(8) dry: above-mentioned stalk fibre sizing slab being put into infrared cyclic drying case dry 20s, obtains environmentally friendly resistance Fire stalk boards half-finished product；The infrared band that the infrared cyclic drying case is set is 1-3 micron
(9) semi-finished product saw side: carrying out cutting edge processing to above-mentioned homogeneous straw core boards half-finished product according to actual demand, obtain phase Answer the environmental protection flame retardant stalk boards half-finished product of length and width；
(10) sanding: the environmental protection flame retardant stalk boards half-finished product after polishing above-mentioned saw side using sander obtains the environmental protection Fire-retardant stalk board finished product；
(11) it is packed and stored: quality examination being carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product is packaged And it is put in storage preservation.
Performance measurement: (1) boiling is tested: take the stalk board of manufacture to be placed in boiling 5h in 100 DEG C of boiling water, it is then dry in 60 DEG C Dry, rear internal bond strength numerical value is 0.70MPa after measuring boiling, and intensity is 0.91MPa before boiling；
(2) combustion experiment, experimental result are carried out according to method as defined in GB8624-2012 are as follows: gross calorific value PCS is about 2.6MJ/Kg, fire growth rate index FIGR0.2MJ are about 58W/s, and heat always discharges about 5.0MJ in 600s, and flame is horizontal It is less than the long wing edge of sample to sprawling length, flue gas generating rate index is about 2.6m2/s2, total smoke-producing amount is about in 600s 70m2, not up to A1 grade standard.
(3) it is measured according to method as defined in GB/T 17657-2013, the density of the fire-retardant stalk board of the present embodiment is about 1000Kg/m3, the static bending strength under panel normal condition is about 19 megapascal/millimeter, and elasticity modulus is about 2050 megapascal/millimeter, Moisture content is 8.7%.
(4) it is measured according to method as defined in GB18580-2002, the fire-retardant stalk board burst size of methanal of the present embodiment is about For 0.05mg/L.
Comparative example 2
The comparative example fireproof door frame is the same as embodiment 1；
Manufacture the raw material composition of this comparative example environmental protection flame retardant stalk board are as follows: stalk particle 40Kg, fire retardant 15Kg, binder 10Kg；Wherein, the content of the fire retardant raw material composition is respectively magnesia 4.5Kg, magnesium chloride 2.25Kg, magnesium sulfate 2.25Kg, nanometer antimony oxide 5.25Kg, 0.15Kg citric acid, 0.3Kg sodium phosphate, 0.3Kg boric acid；The inorganic binder raw material The content of composition is respectively Aluminum sol 0.3Kg, waterglass 0.5Kg, polyvinyl alcohol 0.8Kg and deionized water 8.4Kg.
The manufacturing process of the present embodiment environmental protection flame retardant stalk board are as follows:
(1) agricultural crop straw removal of impurities crushes: special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and The stalk cleaned out is subjected to natural drying drying, controls the moisture content of stalk between about 10%；Then stalk is distinguished It is input to table, crushed in sandwich layer pulverizer, surface layer pulverizer is crushed to 3-5mm, and sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging: original is weighed according to table, sandwich layer stalk particle 40Kg, fire retardant 15Kg, binder 10Kg respectively Then material stirs according to different stalk particle, fire retardant and binder are placed in different vessels of table, sandwich layer stalk respectively Even formation table, sandwich layer mixture；
(3) mat formation mould: the table, sandwich layer mixture are respectively delivered in spreading machine, it is mixed according to surface layer surface layer of mating formation Material is closed, sandwich layer is mated formation sandwich layer mixture, and spreading machine uniformly mats formation table, sandwich layer mixture point 50 times onto backing plate, formation 50 Mat formation and mix the bed of material, then every, which is mated formation, mixes the bed of material and be sent in mold together with backing plate；
(4) pre-molding: under the humidity that room temperature and dew-point temperature are 75 degrees Celsius, the mixture on backing plate is applied 3.8×105The pressure of newton forms the prefabricated slab of the stalk fibre after precompressed 15s；
(5) sizing cold pressing: at normal temperature, 50 prefabricated slabs of stalk fibre are put into Mould locking machine together with the backing plate In structure, and apply 1.3 × 107The pressure of newton, constant pressure 20min form the stalk fibre base of certain altitude；
(6) mode locking: the stalk fibre base that above-mentioned sizing cold pressing step is obtained locks in a mold together with the backing plate, and 1.2 × 10 are applied to it7The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) maintenance demoulding: unlock the stalk fibre sizing slab, and the stalk fibre is taken out from the backing plate Dimension sizing slab；
(8) dry: above-mentioned stalk fibre sizing slab being put into infrared cyclic drying case dry 20s, obtains environmentally friendly resistance Fire stalk boards half-finished product；The infrared band that the infrared cyclic drying case is set is 1-3 micron
(9) semi-finished product saw side: carrying out cutting edge processing to above-mentioned homogeneous straw core boards half-finished product according to actual demand, obtain phase Answer the environmental protection flame retardant stalk boards half-finished product of length and width；
(10) sanding: the environmental protection flame retardant stalk boards half-finished product after polishing above-mentioned saw side using sander obtains the environmental protection Fire-retardant stalk board finished product；
(11) it is packed and stored: quality examination being carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product is packaged And it is put in storage preservation.
Performance measurement: (1) boiling is tested: take the stalk board of manufacture to be placed in boiling 5h in 100 DEG C of boiling water, it is then dry in 60 DEG C Dry, rear internal bond strength numerical value is 0.65MPa after measuring boiling, and intensity is 0.97MPa before boiling；
(2) combustion experiment, experimental result are carried out according to method as defined in GB8624-2012 are as follows: gross calorific value PCS is about 2.8MJ/Kg, fire growth rate index FIGR0.2MJ are about 62W/s, and heat always discharges about 5.3MJ in 600s, and flame is horizontal It is less than sample edge to sprawling length, flue gas generating rate index is about 2.7m2/s2, total smoke-producing amount is about 72m in 600s2, not Reach A1 grade standard.
(3) it is measured according to method as defined in GB/T 17657-2013, the density of the fire-retardant stalk board of the present embodiment is about 1010Kg/m3, the static bending strength under panel normal condition is about 21 megapascal/millimeter, and elasticity modulus is about 2090 megapascal/millimeter, Moisture content is 8.6%.
(4) it is measured according to method as defined in GB18580-2002, the fire-retardant stalk board burst size of methanal of the present embodiment is about For 0.05mg/L.
Comparative example 3
The comparative example fireproof door frame is the same as embodiment 1；
Manufacture the raw material composition of this comparative example environmental protection flame retardant stalk board are as follows: stalk particle 40Kg, fire retardant 15Kg, binder 10Kg；Wherein, the content of the fire retardant raw material composition is respectively magnesia 4.5Kg, magnesium chloride 2.25Kg, magnesium sulfate 2.25Kg, nanometer antimony oxide 2.25Kg, ultra-fine SILICA FUME 3Kg, 0.15Kg citric acid, 0.3Kg sodium phosphate, 0.3Kg boric acid；It is described The content of inorganic binder raw material composition is respectively waterglass 0.8Kg, polyvinyl alcohol 0.8Kg and deionized water 8.4Kg.
The manufacturing process of the present embodiment environmental protection flame retardant stalk board are as follows:
(1) agricultural crop straw removal of impurities crushes: special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and The stalk cleaned out is subjected to natural drying drying, controls the moisture content of stalk between about 10%；Then stalk is distinguished It is input to table, crushed in sandwich layer pulverizer, surface layer pulverizer is crushed to 3-5mm, and sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging: original is weighed according to table, sandwich layer stalk particle 40Kg, fire retardant 15Kg, binder 10Kg respectively Then material stirs according to different stalk particle, fire retardant and binder are placed in different vessels of table, sandwich layer stalk respectively Even formation table, sandwich layer mixture；
(3) mat formation mould: the table, sandwich layer mixture are respectively delivered in spreading machine, it is mixed according to surface layer surface layer of mating formation Material is closed, sandwich layer is mated formation sandwich layer mixture, and spreading machine uniformly mats formation table, sandwich layer mixture point 50 times onto backing plate, formation 50 Mat formation and mix the bed of material, then every, which is mated formation, mixes the bed of material and be sent in mold together with backing plate；
(4) pre-molding: under the humidity that room temperature and dew-point temperature are 75 degrees Celsius, the mixture on backing plate is applied 3.8×105The pressure of newton forms the prefabricated slab of the stalk fibre after precompressed 15s；
(5) sizing cold pressing: at normal temperature, 50 prefabricated slabs of stalk fibre are put into Mould locking machine together with the backing plate In structure, and apply 1.3 × 107The pressure of newton, constant pressure 20min form the stalk fibre base of certain altitude；
(6) mode locking: the stalk fibre base that above-mentioned sizing cold pressing step is obtained locks in a mold together with the backing plate, and 1.2 × 10 are applied to it7The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) maintenance demoulding: unlock the stalk fibre sizing slab, and the stalk fibre is taken out from the backing plate Dimension sizing slab；
(8) dry: above-mentioned stalk fibre sizing slab being put into infrared cyclic drying case dry 20s, obtains environmentally friendly resistance Fire stalk boards half-finished product；The infrared band that the infrared cyclic drying case is set is 1-3 micron
(9) semi-finished product saw side: carrying out cutting edge processing to above-mentioned homogeneous straw core boards half-finished product according to actual demand, obtain phase Answer the environmental protection flame retardant stalk boards half-finished product of length and width；
(10) sanding: the environmental protection flame retardant stalk boards half-finished product after polishing above-mentioned saw side using sander obtains the environmental protection Fire-retardant stalk board finished product；
(11) it is packed and stored: quality examination being carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product is packaged And it is put in storage preservation.
Performance measurement: (1) boiling is tested: take the stalk board of manufacture to be placed in boiling 5h in 100 DEG C of boiling water, it is then dry in 60 DEG C Dry, rear internal bond strength numerical value is 0.55MPa after measuring boiling, and intensity is 0.82MPa before boiling；
(2) combustion experiment, experimental result are carried out according to method as defined in GB8624-2012 are as follows: gross calorific value PCS is about 2.6MJ/Kg, fire growth rate index FIGR0.2MJ are about 35W/s, and heat always discharges about 4.1MJ in 600s, and flame is horizontal It is less than sample edge to sprawling length, flue gas generating rate index is about 1.7m2/s2, total smoke-producing amount is about 52m in 600s2, not Reach A1 grade standard.
(3) it is measured according to method as defined in GB/T 17657-2013, the density of the fire-retardant stalk board of the present embodiment is about 960Kg/m3, the static bending strength under panel normal condition is about 24 megapascal/millimeter, and elasticity modulus is about 2300 megapascal/millimeter, is contained Water rate is 8.1%.
(4) it is measured according to method as defined in GB18580-2002, the fire-retardant stalk board burst size of methanal of the present embodiment is about For 0.05mg/L.
Comparative example 4
The comparative example fireproof door frame is the same as embodiment 1；
Manufacture the raw material composition of this comparative example environmental protection flame retardant stalk board are as follows: stalk particle 40Kg, fire retardant 15Kg, binder 10Kg；Wherein, the content of the fire retardant raw material composition is respectively magnesia 4.5Kg, magnesium chloride 2.25Kg, magnesium sulfate 2.25Kg, nanometer antimony oxide 2.25Kg, ultra-fine SILICA FUME 3Kg, 0.15Kg citric acid, 0.3Kg sodium phosphate, 0.3Kg boric acid；It is described The content of inorganic binder raw material composition is respectively Aluminum sol 0.8Kg, polyvinyl alcohol 0.8Kg and deionized water 8.4Kg.
The manufacturing process of the present embodiment environmental protection flame retardant stalk board are as follows:
(1) agricultural crop straw removal of impurities crushes: special equipment removes brick and tile, stone, soil and metal class impurity in stalk, and The stalk cleaned out is subjected to natural drying drying, controls the moisture content of stalk between about 10%；Then stalk is distinguished It is input to table, crushed in sandwich layer pulverizer, surface layer pulverizer is crushed to 3-5mm, and sandwich layer pulverizer is crushed to 5-10mm；
(2) metering, distributing, packaging: original is weighed according to table, sandwich layer stalk particle 40Kg, fire retardant 15Kg, binder 10Kg respectively Then material stirs according to different stalk particle, fire retardant and binder are placed in different vessels of table, sandwich layer stalk respectively Even formation table, sandwich layer mixture；
(3) mat formation mould: the table, sandwich layer mixture are respectively delivered in spreading machine, it is mixed according to surface layer surface layer of mating formation Material is closed, sandwich layer is mated formation sandwich layer mixture, and spreading machine uniformly mats formation table, sandwich layer mixture point 50 times onto backing plate, formation 50 Mat formation and mix the bed of material, then every, which is mated formation, mixes the bed of material and be sent in mold together with backing plate；
(4) pre-molding: under the humidity that room temperature and dew-point temperature are 75 degrees Celsius, the mixture on backing plate is applied 3.8×105The pressure of newton forms the prefabricated slab of the stalk fibre after precompressed 15s；
(5) sizing cold pressing: at normal temperature, 50 prefabricated slabs of stalk fibre are put into Mould locking machine together with the backing plate In structure, and apply 1.3 × 107The pressure of newton, constant pressure 20min form the stalk fibre base of certain altitude；
(6) mode locking: the stalk fibre base that above-mentioned sizing cold pressing step is obtained locks in a mold together with the backing plate, and 1.2 × 10 are applied to it7The pressure of newton carries out solidification a period of time, forms stalk fibre sizing slab；
(7) maintenance demoulding: unlock the stalk fibre sizing slab, and the stalk fibre is taken out from the backing plate Dimension sizing slab；
(8) dry: above-mentioned stalk fibre sizing slab being put into infrared cyclic drying case dry 20s, obtains environmentally friendly resistance Fire stalk boards half-finished product；The infrared band that the infrared cyclic drying case is set is 1-3 micron
(9) semi-finished product saw side: carrying out cutting edge processing to above-mentioned homogeneous straw core boards half-finished product according to actual demand, obtain phase Answer the environmental protection flame retardant stalk boards half-finished product of length and width；
(10) sanding: the environmental protection flame retardant stalk boards half-finished product after polishing above-mentioned saw side using sander obtains the environmental protection Fire-retardant stalk board finished product；
(11) it is packed and stored: quality examination being carried out to above-mentioned environmental protection flame retardant stalk board finished product, and qualified product is packaged And it is put in storage preservation.
Performance measurement: (1) boiling is tested: take the stalk board of manufacture to be placed in boiling 5h in 100 DEG C of boiling water, it is then dry in 60 DEG C Dry, rear internal bond strength numerical value is 0.60MPa after measuring boiling, and intensity is 0.93MPa before boiling；
(2) combustion experiment, experimental result are carried out according to method as defined in GB8624-2012 are as follows: gross calorific value PCS is about 2.6MJ/Kg, fire growth rate index FIGR0.2MJ are about 49W/s, and heat always discharges about 4.7MJ in 600s, and flame is horizontal It is less than sample edge to sprawling length, flue gas generating rate index is about 2.5m2/s2, total smoke-producing amount is about 54m in 600s2, not Reach A1 grade standard.
(3) it is measured according to method as defined in GB/T 17657-2013, the density of the fire-retardant stalk board of the present embodiment is about 990Kg/m3, the static bending strength under panel normal condition is about 25 megapascal/millimeter, and elasticity modulus is about 2340 megapascal/millimeter, is contained Water rate is 8.5%.
(4) it is measured according to method as defined in GB18580-2002, the fire-retardant stalk board burst size of methanal of the present embodiment is about For 0.05mg/L.
The foregoing is merely section Examples of the invention, are not intended to restrict the invention, for art technology For personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (7)

1. a kind of fireproof door frame, including first substrate (121) and the second substrate (122), which is characterized in that the first substrate (121) it is located at side of the fireproof door frame towards wall, the second substrate is located at fireproof door frame towards the side of door leaf, the One substrate (121) and the second substrate (122) are using inorganic binder and rifle nail connection；The first substrate (121) and the second base Plate (122) is cut out to obtain using fire-retardant fireproof stalk board according to certain size, and the first substrate (121) connects with wall The one side segmentation of touching is reinforced key (123) using the zinc-plated steel of multiple U-shapeds and is reinforced；Wherein, the fireproof door frame uses ring Environment friendly flame-retardant stalk board is cut out, and the raw material composition of the stalk board includes: 50~100 parts of stalk particle, and fire retardant 10~ 200 parts, 1~50 part of binder；In terms of percentage composition, the content of fire retardant raw material composition be respectively magnesia 20~ 35%, magnesium chloride 10~20%, magnesium sulfate 5~15%, nanometer antimony oxide 5~20%, ultra-fine SILICA FUME 5~20%, 0.1~2% lemon Acid, 0.5~3% sodium phosphate and 0.5~2% boric acid；The content of inorganic binder raw material composition be respectively Aluminum sol 1~5%, Waterglass 5~10%, polyvinyl alcohol 5~20% and deionized water 70~95%.
2. fireproof door frame according to claim 1, which is characterized in that the width of the first substrate (121) is greater than the The width of two substrates (122).
3. fireproof door frame according to claim 2, which is characterized in that the first substrate (121) and the second substrate (122) composition mounting surface is mutually flush towards side outdoors；The first substrate (121) and the second substrate (122) are towards door Interior side is spaced apart from each other composition cascaded surface.
4. fireproof door frame according to claim 3, which is characterized in that the zinc-plated steel of U-shaped, which reinforces key (123), is It processes to obtain using the offcut of steel plate that industrial process is discarded, size is carried out according to the width and thickness of first substrate (121) Adjustment.
5. fireproof door frame according to claim 4, which is characterized in that the stalk be selected from Wheat Straw, rice straw, At least one of corn stover, cotton stalk, peanut shell, bamboo branch leaf, rape stalk；The moisture content of the stalk less than 12%, Length after chaffcutter shreds is 5~10cm.
6. fireproof door frame according to claim 5, which is characterized in that the magnesia is by magnesite or dolomite calcination Form, it is described calcining be it is light-burned, calcination temperature be 550-750 DEG C.
7. fireproof door frame according to claim 6, which is characterized in that the preparation method of the environmental protection flame retardant stalk board according to It is secondary to include the following steps: raw material agricultural crop straw → tear open bundle → removing impurity → crushing → metering, distributing, packaging → application fire retardant mixing Object → application binder mixtures → mat formation into mould → pre-molding → sizing cold pressing → maintenance → demoulding → semi-finished product saw side → Drying → veneer → product saw side → polishing → finished product detection storage.
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JP2005336472A (en) * 2004-04-28 2005-12-08 Konoshima Chemical Co Ltd Magnesium hydroxide-based flame retardant and method for producing the same, and flame-retardant resin composition
CN203792461U (en) * 2014-04-04 2014-08-27 信阳市四通机械制造有限公司 Special agitator for mixing materials of plant fiber boards
CN105064661A (en) * 2015-07-20 2015-11-18 江苏锐升新材料有限公司 PVC composite floorboard with high-strength wear-resistant layer structure
CN105331294A (en) * 2015-09-30 2016-02-17 信阳市四通机械制造有限公司 Flame retardant environmentally friendly adhesive and producing method of plant fiberboard
CN106589660A (en) * 2016-11-16 2017-04-26 国网山东省电力公司商河县供电公司 Fireproof flame retardant material for electric appliance shell

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061613A (en) * 1975-06-21 1977-12-06 H. H. Robertson Company Semisolid polymerizable compositions, method of preparing the same and thermoset products thereof
JP2005336472A (en) * 2004-04-28 2005-12-08 Konoshima Chemical Co Ltd Magnesium hydroxide-based flame retardant and method for producing the same, and flame-retardant resin composition
CN203792461U (en) * 2014-04-04 2014-08-27 信阳市四通机械制造有限公司 Special agitator for mixing materials of plant fiber boards
CN105064661A (en) * 2015-07-20 2015-11-18 江苏锐升新材料有限公司 PVC composite floorboard with high-strength wear-resistant layer structure
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CN106589660A (en) * 2016-11-16 2017-04-26 国网山东省电力公司商河县供电公司 Fireproof flame retardant material for electric appliance shell

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