CN105317354A - Manufacturing method of luxurious fireproof and anti-explosion door - Google Patents
Manufacturing method of luxurious fireproof and anti-explosion door Download PDFInfo
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- CN105317354A CN105317354A CN201410379481.1A CN201410379481A CN105317354A CN 105317354 A CN105317354 A CN 105317354A CN 201410379481 A CN201410379481 A CN 201410379481A CN 105317354 A CN105317354 A CN 105317354A
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Abstract
The invention provides a manufacturing method of a steel and wood structure fireproof and burglarproof door. The steel and wood structure fireproof and burglarproof door is manufactured by adopting the steps such as flame retardant treatment, manufacturing of door leaf metal frames, anti-explosion treatment, surface decoration, frame covering outside the door, substrate polishing, waterproof treatment, paint immersion treatment, door lock treatment, hinge installation and the like; the unique fireproof and burglarproof door made of a steel and wood structure is good in fireproof performance, is ultra-strong, and can be arbitrarily molded, so that the problem that the styles of burglarproof doors are single is solved; in addition, an internal burglarproof metal frame can effectively prevent the damage of burglar tools, and when the door is broken by tools for cutting woods, the internal metal frame cannot be cut off; when the door is broken by tools for cutting metals, an external solid-wood multi-layer board cannot be cut off; the fireproof and burglarproof door makes up the disadvantages of the performance of an existing fireproof and burglarproof door, and solves the problems the burglarproof door is not environmentally friendly, not resistant to moisture or water, and cannot prevent burglary. The luxurious fireproof and anti-explosion door provided by the invention can reach optimal fireproof and anti-explosion effects, and is a best choice of banks, financial departments and national security departments.
Description
Technical field
a kind of fire-proof and explosion-proof door preparation method of the present invention, particularly relates to the preparation method of the shellproof explosion proof door of a kind of luxurious fire prevention.
Technical background
the fireproof and theftproof door sold in the market, the general metal that adopts makes, and ubiquity moulding is single, style, class, color and texture and whole structure inharmonious.But there is no shellproof explosion-proof effect, bring safely very large hidden danger to bank vault.
Summary of the invention
the object of the invention is to provide one better to solve the problem, and fire retarding wood, metal, high-strength PE nonwoven stitching 8-10 layer can be made full use of, UV unidirectional cloth, the material science such as carbon fiber board reasonably organically combine, namely fireproof and theftproof door style is solved single, of low grade, the inharmonic problem of color, texture, the preparation method of the fire-proof and explosion-proof door that antitheft shellproof explosion-proof performance improves.Combustibility of the present invention is not less than the C level of GB8624-2006 or the B1 level of GB8624-1997, and theftproof performance is not less than GB17565-1998 " anti-theft safety door general technical specifications " second class requirement., shellproof IIIA and, can anti-tommy gun, rifle, the destruction of antitank grenade.
for achieving the above object, the present invention is achieved by the following technical solutions:
a preparation method for luxurious fire-proof and explosion-proof door, is characterized in that: comprise the following steps:
the first step: flame treatment: the non-pressure vessel timber chosen being put into IV fire retardant mixed solution soaks, and the mode of pressurizeing after adopting first vacuum impregnates fire retardant, the timber impregnated enters drying kiln drying process;
second step: the making of door leaf metal frame: door limit adopts 30mmx100mmx2-2.5mm square tube; Upper and lower harbour all adopts 30mmx50mmx2mm-2.5mm square tube; Interior title adopts 30mmx30mmx2.0mm-2.5mm square tube, and hinge aperture place, door limit adds 30mmx30mmx2.0mm-2.5mm square tube and strengthens, and lockhole place strengthens especially, and soldering opening place polishes flat smooth, the thick flame-retardant solid wood bar of metal door frame surrounding envelope 15mm;
3rd step: technological processing for explosion protection feature: door leaf front metal frame obtained above is filled the thick carbon fiber board of 10-15mm, high strength PE nonwoven is sewed up 8-10 layer and is added unidirectional cloth, add 10-15mm carbon fiber board, two-sided envelope 0.8mm-1mm metal sheet and 5mm fire retardant, multi-layer plate, process flat smooth.
4th step: facing: panel adopts through the yellow jacket plate of flame treatment or the good timber of other seeds textures, and 10mm-15mm is thick, processes moulding by drawing, by the bookbinding of its gluing on above-mentioned steel timber core, need to detain line, gluing bookbinding button line, makes steel-wood structure fireproof and theftproof door of the present invention;
5th step: door pocket frame
5.1. adopt electrogalvanising steel plate, steel plate thickness is not less than 2.5mm.Flame-retardant solid wood is filled, flame-retardant solid wood facing;
5.2. door pocket frame is provided with U-lag, for mosaic sealing tape;
5.3. door pocket frame ground sill adopts corrosion resistant plate, thickness 0.8mm-1.2mm, and flame-retardant solid wood is filled, and ground sill height is not less than 50mm, and arranges sealing joint strip;
6th step: white stubble polishing: steel-wood structure fire-proof burglar-proof door leaf obtained above and door pocket frame are repaired, first with smooth with 240#-400# sand papering after 120#-150# sand paper.Need wire drawing process, to polish after first wire drawing;
7th step: waterproofing work: by steel-wood structure fire-proof burglar-proof door leaf of having polished obtained above, adopts nanometer wood waterproof agent to soak 5-10 minute, dries;
8th step: dipping lacquer process: adopt the outdoor paint of German Lei Mashi, by steel-wood structure fire-proof burglar-proof door leaf obtained above, put into dip tank and soak;
8.1. surfacing: working surface and material are without any greasy dirt, booty and other impurity; Before surface construction, first invade paint with open air and invade bubble, then paint with panel; Panel paint adopts German Lei Mashi to paint " water seal paint " outward or water paint carries out surfacing to it;
8.2. no matter adopt which kind of application mode door leaf and door frame surface even, smooth, smooth, without pit, bubble, rise drum and cut of damaging, crack;
9th step: door lock
9.1., after lockset locking, gap≤0.5mm before and after door leaf, is rocked;
9.2. the opening ways of door is external-open, and outside door lock, handle should be fixing handle;
9.3 door lock melt temperatures are not less than 950 DEG C;
tenth step: hinge
10.1. adopt and hide Theft-proof hinge, plating zinc on surface; Each door leaf installation is no less than three hinges and meets door body load-bearing requirements simultaneously, and hinge adopts CARBURIZING FURNACE FOR STAINLESS FASTENER to fix;
10.2. door leaf hinge should rotate flexibly, and under the pulling force of 49N, door leaf should be able to open and close flexibly, fluent phenomenon;
10.3. all steel component all carry out antirust treatment, and its melt temperature of the Hardware fitting such as hinge, latch is not less than 950 DEG C;
10.4. on door leaf, sealing joint strip adopts fire proof seal adhesive tape.
in the described first step: the preparation of fire retardant:
a) type fire retardant is made in the stirring that is added to the water by two or more mixture in wood fire retardant zinc hydroxide, aluminium hydroxide, magnesium hydroxide; Two or more mixture is added in 40-60 part melamine phosphate, aluminium hydroxide, magnesium hydroxide in usual 100 parts of water;
b) two or more mixture in the acid of organic wood fire retardant dicyandiamidines microcosmic salt, ammonium dihydrogen phosphate (ADP), Diammonium phosphate (DAP), APP, phosphoguanidine, phosphate is made type fire retardant;
c) one or more in methyl tri-tert peroxy-silane, vinyltrimethoxy silane, VTES, vinyl trichlorosilane are mixed and made into type fire retardant;
d) will add type fire retardant and solvent mixing 30-180 minute in type fire retardant, then add type fire retardant, 10-90 DEG C keeps filtration in 30-180 minute to make type fire retardant mixed liquor under the conditions;
described solution comprises water, ethanol, dimethylbenzene etc.;
the weight ratio type fire retardant of described type fire retardant mixed solution, type fire retardant and solvent, type fire retardant proportioning are 100:10-100:1-10;
described method sawn timber being placed in the mode of pressurizeing after GB150-1998 adopts first vacuum is: be evacuated to 600 ~ 650 millimetress of mercury when GB150-1998 impregnates fire retardant, keeps 60 ~ 90 minutes; Rely on vacuum to import in GB150-1998 by wood fire retardant, remove vacuum when wood fire retardant is full of pressure vessel, close vacuum valve; Slowly be pressurized to 1.0 ~ 1.5MPa, and keep 3 ~ 5 hours; Pressure relief when to reach the fire retardant amount of impregnating be 10% ~ 15% of wood weight, closes pressurizing valve and the valve being connected wood fire retardant holding vessel; Be evacuated to 600 ~ 650 millimetress of mercury, keep 15 ~ 30 minutes, remove vacuum, take out timber, moisture content is dried to 6%-10%.
the invention has the beneficial effects as follows: the steel of uniqueness of the present invention, wood, carbon fiber structural, well superpower solid of the fire-proof and explosion-proof door fireproof performance made, and can moulding arbitrarily, solve the problem that security door style is single; In addition inner antitheft metal frame, effectively can prevent the destruction of stealing tool, when destroying with the instrument of cutting timber, the metal frame of inside cannot be cut off; When destroying with the instrument of cutting metal, the multilayer solid wood board of outside cannot be cut; It is crucial that invention achieves shellproof anti-IIIA level, it can prevent AK47 tommy gun, rifle, the destruction of antitank grenade, and it not only compensate for the deficiency of existing fireproof and theftproof door performance, solves security door not environmentally, non-moistureproof water, not shellproof problem.Luxurious fire-proof and explosion-proof door of the present invention, can reach fire-proof and explosion-proof optimum efficiency; It is the optimal selection of bank, financial department and state security department.
performance:
1. shellproof grade: America NI J standard: IIIA level.
fire line: combustibility of the present invention is not less than the C level of GB8624-2006 or the B1 level of GB8624-1997,
3. theftproof: every body of registering one's residence, guarantee meet or exceed GB17565-1998 " anti-theft safety door general technical specifications " second class requirement.
decay resistance: normal operating condition does not occur cracking, depainting, corrosion, discolouration phenomena within lower 5 years.
cold-proof: entry door cold-proof heat insulation performance meets JGJ26-95 " Civil Building Energy Conservation design standard " and JGJ134-2001 " hot-summer and cold-winter area energy Saving Design of Residential Buildings standard ", entering house door Coefficient K≤2.0w/(m2k).
sound-proofing: entry door sound insulation value meets Ministry of Construction's housing industry and promotes that namely entering house door sound insulation factor is not less than 20 decibels to reaching the requirement of A level house in center " commercial residential buildings Reliable Evaluating Methods of Their Performance and index system ".
Accompanying drawing explanation
accompanying drawing (1) metal frame section of structure of the present invention.
the luxurious fire-proof and explosion-proof door figure of accompanying drawing (2) the present invention.
the luxurious fire-proof and explosion-proof door of accompanying drawing (3) the present invention; The sectional drawing of door pocket frame, door leaf structure.
the sectional drawing of accompanying drawing (4) door leaf of the present invention and threshold.
detailed description of the invention:
embodiment 1
in the described first step: the preparation of fire retardant:
a) type fire retardant is made in the stirring that is added to the water by two or more mixture in wood fire retardant zinc hydroxide, aluminium hydroxide, magnesium hydroxide; Two or more mixture is added in 40-60 part melamine phosphate, aluminium hydroxide, magnesium hydroxide in usual 100 parts of water;
b) two or more mixture in the acid of organic wood fire retardant dicyandiamidines microcosmic salt, ammonium dihydrogen phosphate (ADP), Diammonium phosphate (DAP), APP, phosphoguanidine, phosphate is made type fire retardant;
c) one or more in methyl tri-tert peroxy-silane, vinyltrimethoxy silane, VTES, vinyl trichlorosilane are mixed and made into type fire retardant;
d) will add type fire retardant and solvent mixing 30-180 minute in type fire retardant, then add type fire retardant, 10-90 DEG C keeps filtration in 30-180 minute to make type fire retardant mixed liquor under the conditions;
flame treatment: the non-pressure vessel timber chosen being put into IV fire retardant mixed solution soaks, and the mode of pressurizeing after adopting first vacuum impregnates fire retardant, the timber impregnated enters drying kiln drying process;
described solution comprises water, ethanol, dimethylbenzene etc.;
the weight ratio type fire retardant of described type fire retardant mixed solution, type fire retardant and solvent, type fire retardant proportioning are 100:10-100:1-10.
described method sawn timber being placed in the mode of pressurizeing after GB150-1998 adopts first vacuum is: be evacuated to 600 ~ 650 millimetress of mercury when GB150-1998 impregnates fire retardant, keeps 60 ~ 90 minutes; Rely on vacuum to import in GB150-1998 by wood fire retardant, remove vacuum when wood fire retardant is full of pressure vessel, close vacuum valve; Slowly be pressurized to 1.0 ~ 1.5MPa, and keep 3 ~ 5 hours; Pressure relief when to reach the fire retardant amount of impregnating be 10% ~ 15% of wood weight, closes pressurizing valve and the valve being connected wood fire retardant holding vessel; Be evacuated to 600 ~ 650 millimetress of mercury, keep 15 ~ 30 minutes, remove vacuum, take out timber, moisture content is dried to 6%-10%.
second step: the making of door leaf metal frame 1: door limit adopts 30mmx100mmx2-2.5mm square tube; Upper and lower harbour all adopts 30mmx50mmx2mm-2.5mm square tube; Interior title adopts 30mmx30mmx2.0mm-2.5mm square tube, and door limit hinge 2 tapping adds 30mmx30mmx2.0mm-2.5mm square tube and strengthens, and lockhole place strengthens especially, and soldering opening place polishes flat smooth, the thick flame-retardant solid wood bar of metal door frame surrounding envelope 15mm; As Fig. 1.
3rd step: technological processing for explosion protection feature: door leaf front metal frame 1 obtained above is filled the thick carbon fiber board 4 of 10-15mm, high strength PE nonwoven is sewed up 8-10 layer and is added unidirectional cloth 5, add 10-15mm carbon fiber board 4, two-sided envelope 0.8mm-1mm metal sheet 6 and 5mm fire retardant, multi-layer plate, process flat smooth.
4th step: facing: panel adopts through the yellow jacket plate of flame treatment or the good timber of other seeds textures, and 10mm-15mm is thick, processes moulding by drawing, by the bookbinding of its gluing on above-mentioned steel timber core, need to detain line, gluing bookbinding button line, makes steel-wood structure fireproof and theftproof door of the present invention.
5th step: door pocket frame
5.1. adopt electrogalvanising steel plate, steel plate thickness is not less than 2.5mm.Flame-retardant solid wood is filled, flame-retardant solid wood facing;
5.2. door pocket frame is provided with U-lag, for mosaic sealing tape.
door pocket frame ground sill adopts corrosion resistant plate, thickness 0.8mm-1.2mm, and flame-retardant solid wood is filled, and ground sill height is not less than 50mm, and arranges sealing joint strip.
6th step: white stubble polishing: steel-wood structure fire-proof burglar-proof door leaf obtained above and door pocket frame are repaired, first with smooth with 240#-400# sand papering after 120#-150# sand paper.Need wire drawing process, to polish after first wire drawing.
7th step: waterproofing work: by steel-wood structure fire-proof burglar-proof door leaf of having polished obtained above, adopts nanometer wood waterproof agent to soak 5-10 minute, dries.
8th step: dipping lacquer process: adopt the outdoor paint of German Lei Mashi, by steel-wood structure fire-proof burglar-proof door leaf obtained above, put into dip tank to soak it there is waterproof, anticorrosion, the feature such as ageing-resistant, process through above timber makes timber well moistureproof, waterproof effect, adapt to different environment, as drying, moist, coastal area, the area etc. that relative humidity is higher.
surfacing: working surface and material are without any greasy dirt, booty and other impurity; Before surface construction, first invade paint with open air and invade bubble, make timber have waterproof, humidity resistance, then paint with panel.Panel paint adopts German Lei Mashi to paint " water seal paint " outward or water paint carries out surfacing to it.
no matter adopt which kind of application mode door leaf and door frame surface even, smooth, smooth, without pit, bubble, rise drum and cut of damaging, crack.
9th step: door lock 3
9.1. key rotates flexibly after inserting lockhole, and dead bolt should be capable of expansion and contraction, without catching phenomenon; There is not the phenomenon that dead bolt and locked groove misplace.After lockset locking, before and after door leaf, rock gap≤0.5mm.
the opening ways of door is external-open, and outside door lock 3, handle should be fixing handle.
door lock 3 melt temperature is not less than 950 DEG C.
tenth step: hinge 2
10.1. adopt and hide Theft-proof hinge 2, plating zinc on surface; Each door leaf installation is no less than three hinges 2 and meets door body load-bearing requirements simultaneously, and hinge 2 adopts CARBURIZING FURNACE FOR STAINLESS FASTENER to fix.Greatly improve theftproof performance
10.2. door leaf hinge 2 should rotate flexibly, and under the pulling force of 49N, door leaf should be able to open and close flexibly, fluent phenomenon.
all steel component all carry out antirust treatment, and its melt temperatures of Hardware fitting such as hinge 2, latch are not less than 950 DEG C.
described sealing joint strip adopts fire proof seal adhesive tape.
Claims (5)
1. a preparation method for luxurious fire-proof and explosion-proof door, is characterized in that: comprise the following steps:
The first step: flame treatment: the non-pressure vessel timber chosen being put into IV fire retardant mixed solution soaks, and the mode of pressurizeing after adopting first vacuum impregnates fire retardant, the timber impregnated enters drying kiln drying process;
Second step: the making of door leaf metal frame: door limit adopts 30mmx100mmx2-2.5mm square tube; Upper and lower harbour all adopts 30mmx50mmx2mm-2.5mm square tube; Interior title adopts 30mmx30mmx2.0mm-2.5mm square tube, and hinge aperture place, door limit adds 30mmx30mmx2.0mm-2.5mm square tube and strengthens, and lockhole place strengthens especially, and soldering opening place polishes flat smooth, the thick flame-retardant solid wood bar of metal door frame surrounding envelope 15mm;
3rd step: technological processing for explosion protection feature: door leaf front metal frame obtained above is filled the thick carbon fiber board of 10-15mm, high strength PE nonwoven is sewed up 8-10 layer and is added unidirectional cloth, add 10-15mm carbon fiber board, two-sided envelope 0.8mm-1mm metal sheet and 5mm fire retardant, multi-layer plate, process flat smooth.
2. the 4th step: facing: panel adopts through the yellow jacket plate of flame treatment or the good timber of other seeds textures, 10mm-15mm is thick, moulding is processed by drawing, by the bookbinding of its gluing on above-mentioned steel timber core, need to detain line, gluing bookbinding button line, makes steel-wood structure fireproof and theftproof door of the present invention;
5th step: door pocket frame
5.1. adopt electrogalvanising steel plate, steel plate thickness is not less than 2.5mm.
3. flame-retardant solid wood is filled, flame-retardant solid wood facing;
5.2. door pocket frame is provided with U-lag, for mosaic sealing tape;
5.3. door pocket frame ground sill adopts corrosion resistant plate, thickness 0.8mm-1.2mm, and flame-retardant solid wood is filled, and ground sill height is not less than 50mm, and arranges sealing joint strip;
6th step: white stubble polishing: steel-wood structure fire-proof burglar-proof door leaf obtained above and door pocket frame are repaired, first with smooth with 240#-400# sand papering after 120#-150# sand paper.
4. need wire drawing process, to polish after first wire drawing;
7th step: waterproofing work: by steel-wood structure fire-proof burglar-proof door leaf of having polished obtained above, adopts nanometer wood waterproof agent to soak 5-10 minute, dries;
8th step: dipping lacquer process: adopt the outdoor paint of German Lei Mashi, by steel-wood structure fire-proof burglar-proof door leaf obtained above, put into dip tank and soak;
8.1. surfacing: working surface and material are without any greasy dirt, booty and other impurity; Before surface construction, first invade paint with open air and invade bubble, then paint with panel; Panel paint adopts German Lei Mashi to paint " water seal paint " outward or water paint carries out surfacing to it;
8.2. no matter adopt which kind of application mode door leaf and door frame surface even, smooth, smooth, without pit, bubble, rise drum and cut of damaging, crack;
9th step: door lock
9.1., after lockset locking, gap≤0.5mm before and after door leaf, is rocked;
9.2. the opening ways of door is external-open, and outside door lock, handle should be fixing handle;
9.3 door lock melt temperatures are not less than 950 DEG C;
Tenth step: hinge
10.1. adopt and hide Theft-proof hinge, plating zinc on surface; Each door leaf installation is no less than three hinges and meets door body load-bearing requirements simultaneously, and hinge adopts CARBURIZING FURNACE FOR STAINLESS FASTENER to fix;
10.2. door leaf hinge should rotate flexibly, and under the pulling force of 49N, door leaf should be able to open and close flexibly, fluent phenomenon;
10.3. all steel component all carry out antirust treatment, and its melt temperature of the Hardware fitting such as hinge, latch is not less than 950 DEG C;
10.4. on door leaf, sealing joint strip adopts fire proof seal adhesive tape.
5. the preparation method of a kind of luxurious fire-proof and explosion-proof door according to claim 1, is characterized in that: in the described first step: the preparation of fire retardant:
A) stirring that is added to the water by two or more mixture in wood fire retardant zinc hydroxide, aluminium hydroxide, magnesium hydroxide is made
type fire retardant; Two or more mixture is added in 40-60 part melamine phosphate, aluminium hydroxide, magnesium hydroxide in usual 100 parts of water;
B) two or more mixture in the acid of organic wood fire retardant dicyandiamidines microcosmic salt, ammonium dihydrogen phosphate (ADP), Diammonium phosphate (DAP), APP, phosphoguanidine, phosphate is made
type fire retardant;
C) one or more in methyl tri-tert peroxy-silane, vinyltrimethoxy silane, VTES, vinyl trichlorosilane are mixed
type fire retardant;
D) will
add in type fire retardant
type fire retardant and solvent mixing 30-180 minute, then add
type fire retardant, 10-90 DEG C keeps filtration in 30-180 minute to make under the conditions
type fire retardant mixed liquor;
Described solution comprises water, ethanol, dimethylbenzene etc.;
Described
the weight ratio of type fire retardant mixed solution
type fire retardant,
type fire retardant and solvent,
type fire retardant proportioning is 100:10-100:1-10;
Described method sawn timber being placed in the mode of pressurizeing after GB150-1998 adopts first vacuum is: be evacuated to 600 ~ 650 millimetress of mercury when GB150-1998 impregnates fire retardant, keeps 60 ~ 90 minutes; Rely on vacuum to import in GB150-1998 by wood fire retardant, remove vacuum when wood fire retardant is full of pressure vessel, close vacuum valve; Slowly be pressurized to 1.0 ~ 1.5MPa, and keep 3 ~ 5 hours; Pressure relief when to reach the fire retardant amount of impregnating be 10% ~ 15% of wood weight, closes pressurizing valve and the valve being connected wood fire retardant holding vessel; Be evacuated to 600 ~ 650 millimetress of mercury, keep 15 ~ 30 minutes, remove vacuum, take out timber, moisture content is dried to 6%-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410379481.1A CN105317354A (en) | 2014-08-05 | 2014-08-05 | Manufacturing method of luxurious fireproof and anti-explosion door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410379481.1A CN105317354A (en) | 2014-08-05 | 2014-08-05 | Manufacturing method of luxurious fireproof and anti-explosion door |
Publications (1)
| Publication Number | Publication Date |
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| CN105317354A true CN105317354A (en) | 2016-02-10 |
Family
ID=55245560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410379481.1A Pending CN105317354A (en) | 2014-08-05 | 2014-08-05 | Manufacturing method of luxurious fireproof and anti-explosion door |
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| CN (1) | CN105317354A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801571A (en) * | 2017-01-17 | 2017-06-06 | 成都华固特种门窗有限公司 | A kind of manufacture method of steel special type explosion proof door |
| CN109277785A (en) * | 2018-11-21 | 2019-01-29 | 泉州银盾斯金金属制品有限公司 | Production technology with high-intensitive high sound insulation value copper door |
| CN109629978A (en) * | 2018-11-20 | 2019-04-16 | 华侨大学 | A kind of hollow fire resistant doorsets and preparation method thereof |
-
2014
- 2014-08-05 CN CN201410379481.1A patent/CN105317354A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801571A (en) * | 2017-01-17 | 2017-06-06 | 成都华固特种门窗有限公司 | A kind of manufacture method of steel special type explosion proof door |
| CN109629978A (en) * | 2018-11-20 | 2019-04-16 | 华侨大学 | A kind of hollow fire resistant doorsets and preparation method thereof |
| CN109277785A (en) * | 2018-11-21 | 2019-01-29 | 泉州银盾斯金金属制品有限公司 | Production technology with high-intensitive high sound insulation value copper door |
| CN109277785B (en) * | 2018-11-21 | 2019-12-24 | 泉州银盾斯金金属制品有限公司 | Production process of copper door with high strength and high sound insulation performance |
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