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Magnesium oxysulfide fireproof door core board produced by rolling line

A fire door core board, magnesium oxysulfate technology, applied in the direction of pressure rollers, ceramic products, other household appliances, etc., can solve the problems of low strength and water absorption, low fire rating, poor performance, etc., to achieve high water absorption, fire prevention High Performance, Strong Effects

Active Publication Date: 2018-11-20
ZHUODA NEW MATERIALS TECH GRP WEIHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing method of filling the fire door core board is to use the mold to fill it up manually, the filling efficiency is low, the performance is poor, and it is prone to cracking and powder loss. There is also a process of rolling flat line production using magnesium chloride material. Low grade, low strength and water absorption, can not meet the requirements of modern fire protection

Method used

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  • Magnesium oxysulfide fireproof door core board produced by rolling line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Prepare each raw material in parts by weight: 30 parts of silica fume, 10 parts of magnesium sulfate, 5 parts of magnesium oxide, 30 parts of water, 2 parts of palm fiber with a length of 0.1-1mm, 3 parts of modifier and invalid 0.5 part of phosphoric acid-based polishing liquid, prepare, then load, stir and mix evenly. Among them, palm fiber is soaked in alkaline water with a mass concentration of 10% for 1 hour and rinsed with clean water before use;

[0025] (2) Paving;

[0026] (3) Keep the material paved in (2) at a temperature of 25°C and a humidity of 80% in the maintenance vehicle, curing for 7-28 days, and recording the compressive strength at 7 days and 28 days of curing;

[0027] (4) Mechanical engraving.

[0028] Among them, the modifier is a mixture of foaming agent, foam stabilizer and tackifier in parts by weight; among them, the foaming agent is 0.5 part, the foam stabilizer is 0.5 part, and the tackifier is 1 part; The foaming agent is silkworm pupa high-z...

Embodiment 2

[0030] (1) Prepare each raw material in parts by weight: 50 parts of silica fume, 15 parts of magnesium sulfate, 10 parts of magnesium oxide, 55 parts of water and 12 parts of modifier, prepare, then load, stir and mix evenly. , Palm fiber is soaked in alkaline water with a mass concentration of 15% for 2 hours and then rinsed with clean water before use;

[0031] (2) Paving;

[0032] (3) Keep the material paved in (2) at a temperature of 30°C and a humidity of 60% in the maintenance vehicle for 7-28 days of curing, and record the compressive strength at 7 days and 28 days of curing;

[0033] (4) Mechanical engraving.

[0034] Among them, the modifier is a mixture of foaming agent, foam stabilizer and tackifier in parts by weight; among them, the foaming agent is 2 parts, the foam stabilizer is 3 parts, and the tackifier is 7 parts; The foaming agent is water-soluble glutinous rice protein; the foam stabilizer is selenate polysaccharide, high-viscosity carboxymethyl cellulose (HV-CMC...

Embodiment 3

[0036] (1) Prepare the raw materials in parts by weight: 40 parts of silica fume, 12 parts of magnesium sulfate, 8 parts of magnesium oxide, 43 parts of water, 5 parts of palm fiber with a length of 0.1-1 mm and 7 parts of modifiers. OK, then load, stir and mix evenly. Among them, the palm fiber is soaked in alkaline water with a mass concentration of 20% for 3 hours and then rinsed with clean water before use;

[0037] (2) Paving;

[0038] (3) Keep the material paved in (2) at a temperature of 27°C and a humidity of 70% in the maintenance vehicle for 7-28 days of curing, and record the compressive strength at 7 days and 28 days of curing;

[0039] (4) Mechanical engraving.

[0040] Among them, the modifier is a mixture of foaming agent, foam stabilizer and tackifier in parts by weight; among them, the foaming agent is 1.2 parts, the foam stabilizer is 1.5 parts, and the tackifier is 4 parts; The foaming agent is sodium butyl naphthalene sulfonate and fish meal; the foam stabilizer i...

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Abstract

The invention discloses an S-O-Mg fireproof door core board produced in a rolling and flattening line. The S-O-Mg fireproof door core board is prepared from the following raw materials in parts by weight: 30 to 50 parts of silicon ash, 10 to 15 parts of MgSO4, 5 to 10 parts of MgO, 30 to 55 parts of water, 2 to 9 parts of palm fiber of which the length is 0.1mm to 1mm and 3 to 12 parts of modifier. A method for producing the S-O-Mg fireproof door core board in the rolling and flattening line comprises the following steps of (1) feeding and stirring; (2) paving; (3) maintaining: keeping the temperature in a maintenance vehicle to be 25 DEG C to 30 DEG C and the humidity to be 60 percent to 80 percent, and maintaining for 7 days to 28 days; (4) mechanically engraving. The S-O-Mg fireproof door core board disclosed by the invention is reasonable in formula and convenient to use; an obtained product is high in fireproof performance, large in strength, moderate in density and high in water absorption rate; production is further carried out by adopting the rolling and flattening line, so that the production efficiency is greatly increased, products can be continuously produced, corners are tidy, and no adhesion is generated.

Description

Technical field [0001] The invention relates to a core board for a fireproof door, in particular to a core board for a magnesium oxysulfide fireproof door produced by a rolling line. Background technique [0002] At present, the core board of fire doors mainly uses expanded perlite as the main raw material, mixed with a certain proportion of inorganic high-binding agents and chemical additives, and processed through a complete set of procedures. The existing method of filling the core plate of the fire door is to use the mold to fill it manually, the filling efficiency is low, the performance is poor, and it is prone to cracking and powder falling. There is also a process of using magnesium chloride to roll flat line production. The disadvantage is that the steel is corroded and fireproof. The grade is low, the strength and water absorption are low, and it cannot meet the requirements of modern fire protection. [0003] The information disclosed in the background section is only i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/30C04B38/02B28B3/12
CPCB28B3/12C04B28/30C04B2103/44C04B2103/50C04B2111/28C04B9/00C04B18/146C04B18/248C04B24/16C04B24/14C04B24/12C04B24/02C04B24/38C04B24/04C04B22/062C04B24/383C04B24/386C04B24/26C04B24/32C04B24/40C04B24/00C04B38/02
Inventor 杨卓舒余中华孙吉利陈强董晓楠邹阳陈展庆月
Owner ZHUODA NEW MATERIALS TECH GRP WEIHAI CO LTD
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