CN202596508U - Light-weight gypsum fireproof door core plate - Google Patents
Light-weight gypsum fireproof door core plate Download PDFInfo
- Publication number
- CN202596508U CN202596508U CN 201220278221 CN201220278221U CN202596508U CN 202596508 U CN202596508 U CN 202596508U CN 201220278221 CN201220278221 CN 201220278221 CN 201220278221 U CN201220278221 U CN 201220278221U CN 202596508 U CN202596508 U CN 202596508U
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- door core
- gypsum
- core plate
- light
- core board
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Abstract
The utility model belongs to the field of building materials and relates to a light-weight gypsum fireproof door core plate. The light-weight gypsum fireproof door core plate comprises a door core plate which is formed by adhering high-strength gypsum to chopped fibers, wherein the thickness of the door core plate is between 3 cm and 7 cm; and grid cloth is arranged on the upper and lower surfaces of the door core plate or in the middle of the door core plate. The utility model has the advantages that the pH value of the light-weight gypsum fireproof door core plate is neutral, so a door frame cannot be corroded, and the door core plate has the characteristics of high strength, low combined cost, simple and reasonable production process, good moisture-absorption and moisture-proof effects and long fireproof limit time, and is environment-friendly and pollution-free.
Description
Technical field
The utility model belongs to building material field; Relate to a kind of door panel; Especially a kind of light gypsum anti-fire door core board; Door panel adopts the form of structure of the bonding chopped strand of high strength gypsum, is provided with grid cloth in the upper and lower surfaces or the centre of door panel, and it is good that this door panel has a high moisture absorption moisture effect of intensity.
Background technology
Current anti-fire door core board on the market mainly adopts four types of material preparations to form; The first kind is aluminium silicate wool plate, rock wool, mineral wool or glass wool, though these material light weight, heat insulation good, energy consumption is high in the manufacturing process; Adopt the organic adhesive moulding; Produce in manufacturing process and the use and pollute, be difficult to environmental requirement, have problems such as the anti-fire door core board globality is poor, fire endurance time weak point, poor mechanical property, easy deformation, use inconvenience simultaneously; Second type is perlite fireproof door core board, though fire line is better, sheet material adopts strong basicity bonding agent moulding such as water glass, is corrosive, and strength and toughness is relatively poor, the easy breakage of product in production and use; The 3rd type is the vermiculite anti-fire door core board, adopts the moulding of organic or inorganic bonding agent, exists complex manufacturing, raw material source to receive the problem that region limits, dry density are big, comprehensive cost is high; Though the 4th type is the magnesia oxychloride cement anti-fire door core board characteristics such as lightweight, intensity is higher, cost is low are arranged, its volume instability, moisture absorption, return halogen and return guardian technique difficult problems such as frost, buckling deformation, fire endurance time be short and never effectively solved.
Summary of the invention
The purpose of the utility model is the technical scheme that proposes a kind of light gypsum anti-fire door core board.Door panel adopts the form of structure of the bonding chopped strand of high strength gypsum, is provided with grid cloth in the upper and lower surfaces or the centre of door panel, and it is good that this door panel has a high moisture absorption moisture effect of intensity.
To achieve these goals, the technical scheme of the utility model is: a kind of light gypsum anti-fire door core board comprises that the thickness that is formed by the bonding chopped strand of high strength gypsum is the door panel of 3cm to 7cm, is provided with grid cloth in the upper and lower surfaces or the centre of door panel.
Said chopped strand is that diameter is not more than 40um, length is cut polyester fiber or short polypropylene fibre or the wood fibre cut at short glass fiber or the weak point of 6mm to 12mm.
Said high strength gypsum is chemical gypsum or natural anhydrite or by the α-semi-hydrated gypsum of natural dihydrate gypsum preparation, said grid cloth is that mesh size is the fiberglass gridding cloth of 4mm * 4mm or 6mm * 6mm.
The beneficial effect of the utility model is: gypsum door central layer pH value is neutral, and door frame is not corroded, and door panel has that intensity height, integrated cost are lower, production technology advantages of simple, environment friendly and pollution-free, the moisture absorption moisture effect is good, the fire endurance time is long characteristics.
Below in conjunction with accompanying drawing and embodiment the utility model is made a detailed description.
Description of drawings
Fig. 1 is the structural representation of the utility model grid cloth in the middle of door panel;
Fig. 2 is the structural representation of the utility model grid cloth at the door panel upper and lower surfaces.
The specific embodiment
A kind of light gypsum anti-fire door core board; Referring to Fig. 1 and Fig. 2, said door panel comprises that the thickness that is formed by the bonding chopped strand 1 of high strength gypsum is the door panel 2 of 3cm to 7cm, in order to strengthen the intensity of door panel; Upper and lower surfaces or centre at door panel are provided with grid cloth 3; Promptly when door panel is thin, only add one deck grid cloth in the centre of door panel, and when door panel is thicker the while at the upper and lower surfaces of door panel grid cloth is set respectively.Its manufacturing process is in a mould, to pour the calcium plaster aftershaping that mixes chopped strand into, if two-grid cloth is then first before pouring calcium plaster into up and down one deck grid cloth is layered on the mould bottom surface, again another layer grid cloth is layered on upper surface after getting well; Then after pouring half calcium plaster into, lay grid cloth if only add one deck grid cloth, and then pour second half calcium plaster into, effective for lightweight, in said high strength gypsum, mix blowing agent.
High strength gypsum described in the embodiment is chemical gypsum, natural anhydrite or a kind of by in the α-semi-hydrated gypsum of natural dihydrate gypsum preparation, its rupture strength 6.0MPa, compressive strength 50.0MPa.
Among the embodiment, said chopped strand is that diameter is not more than 40um, length is cut polyester fiber or short polypropylene fibre or the wood fibre cut at short glass fiber or the weak point of 6mm to 12mm.
Among the embodiment, said grid cloth is that mesh size is the fiberglass gridding cloth of 4mm * 4mm or 6mm * 6mm.
The foregoing description anti-fire door core board pH value is neutral 7, and door frame is not corroded, and door panel has the intensity height; Integrated cost is lower, and the production technology advantages of simple is environment friendly and pollution-free; The moisture absorption moisture effect is good, and the fire endurance time is long, this anti-fire door core board dry density 300 ~ 450kg/m
3, over dry compressive strength is not less than 1.0MPa, and the over dry rupture strength is not less than 0.5MPa, meets the A1 level fire-protection rating of GB8624-2006 " constructional materials and the classification of product burns performance ".
Claims (4)
1. a light gypsum anti-fire door core board is characterized in that, said door panel comprises that the thickness that is formed by the bonding chopped strand of high strength gypsum is the door panel of 3cm to 7cm, is provided with grid cloth in the upper and lower surfaces or the centre of door panel.
2. a kind of light gypsum anti-fire door core board according to claim 1 is characterized in that, said chopped strand is that diameter is not more than 40um, length is cut polyester fiber or short polypropylene fibre or the wood fibre cut at short glass fiber or the weak point of 6mm to 12mm.
3. a kind of light gypsum anti-fire door core board according to claim 1 is characterized in that, said high strength gypsum is chemical gypsum or natural anhydrite or by the α-semi-hydrated gypsum of natural dihydrate gypsum preparation.
4. a kind of light gypsum anti-fire door core board according to claim 1 is characterized in that, said grid cloth is that mesh size is the fiberglass gridding cloth of 4mm * 4mm or 6mm * 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278221 CN202596508U (en) | 2012-06-14 | 2012-06-14 | Light-weight gypsum fireproof door core plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278221 CN202596508U (en) | 2012-06-14 | 2012-06-14 | Light-weight gypsum fireproof door core plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202596508U true CN202596508U (en) | 2012-12-12 |
Family
ID=47314055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220278221 Expired - Lifetime CN202596508U (en) | 2012-06-14 | 2012-06-14 | Light-weight gypsum fireproof door core plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202596508U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2693704C1 (en) * | 2018-11-30 | 2019-07-04 | Общество с ограниченной ответственностью "Проффиллинг" (ООО "Проффиллинг") | Fire-resistant door leaf |
-
2012
- 2012-06-14 CN CN 201220278221 patent/CN202596508U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2693704C1 (en) * | 2018-11-30 | 2019-07-04 | Общество с ограниченной ответственностью "Проффиллинг" (ООО "Проффиллинг") | Fire-resistant door leaf |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |