CN104402510A - Manufacturing method of light building board - Google Patents
Manufacturing method of light building board Download PDFInfo
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- CN104402510A CN104402510A CN201410672600.2A CN201410672600A CN104402510A CN 104402510 A CN104402510 A CN 104402510A CN 201410672600 A CN201410672600 A CN 201410672600A CN 104402510 A CN104402510 A CN 104402510A
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- cement
- starch
- building board
- expanded material
- hardening
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Abstract
The invention discloses a manufacturing method of a light building board. The manufacturing method comprises the following steps: adding a balanced amount of starch expanded material in foamed rapid hardening cement mixed slurry to be stirred uniformly, injecting the rapid hardening cement mixed slurry containing the starch expanded material into a forming mould for hardening forming. Since the hardening time of the rapid hardening cement is short, and the starch expanded material has certain water resistance, during the cement hardening process, the rapid hardening cement has been prehardened before the starch expanded material scatters and is dissolved, but the interior of the rapid hardening cement has no flowability, and the starch expanded material can be poured into a foamed space to reduce the volume weight of the product to enable the product to be lighter. Meanwhile, during the process of foamed magnesium cement hardening, most of the starch expanded material forms starch glue through micro-grinding and high-temperature gelatinization, and the starch expanded material is diffused toward the surrounding space in a starch glue form at the later period of hardening, so that the flexural and compressive strength of the product is improved greatly.
Description
Technical field
The present invention relates to technical field of construction and decoration materials, particularly relate to a kind of kind of light building board manufacture method.
Background technology
Existing color steel plate structure is filling with light material between two steel plates normally, as added foam beads in foam cement, in hardening of cement process, foam beads is filled in the steam bubble of steel plate contact surface, increase the bonding strength of color steel and foam cement, make the lighter in weight of color steel simultaneously.Although the color steel of this structure can meet, part is light-weighted has good requirement of strength simultaneously, but owing to adding foam beads in foam cement, when color steel is near the high temperature that catches fire, although there will not be bright catching fire, but high temperature makes the foam beads that makes of macromolecular material give off toxic and harmful, makes the fire prevention of color steel not reach requirement.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of kind of light building board manufacture method and color steel, and the building board manufacture method of this lightweight ensures that the building board produced has lighting, and anti-folding and anti-pressing degree significantly increases simultaneously.
In order to solve the problems of the technologies described above, the invention provides a kind of kind of light building board manufacture method, this kind of light building board manufacture method comprises: system foaming slip step, cement fondu is made slip, stirring adding the appropriate frothing foam be made up of water and whipping agent in cement fondu slip again, forming foaming cement fondu mixed slurry; Make moulding mixture slurry step, in foaming cement fondu mixed slurry, add appropriate property starch swelling thing stir, be formed into moulding mixture slurry; Hardened forming step, carries out hardened forming by shaping slip injection moulding mould.
Say further, the 1%-5% contained for magnesium cement quality of described property starch Peng compound.
Say further, described property starch swelling thing comprises the starch of corn, rice, flour and/or glutinous rice.
Say further, cement fondu comprises magnesium cement.
Say further, described magnesium cement comprises magnesia cement, magnesium oxysulfide concrete and phosphorus-oxygen-magnesium cement.
The present invention discloses a kind of kind of light building board manufacture method, comprise system foaming slip step, cement fondu is made slip, then stirs adding the frothing foam be made up of water and whipping agent in right amount in cement fondu slip, form cement fondu cement foam mixed slurry; Make moulding mixture slurry step, in foaming cement fondu mixed slurry, add appropriate property starch swelling thing stir, be formed into moulding mixture slurry; Hardened forming step, carries out hardened forming by shaping slip injection moulding mould.Because cement fondu setting time is short, the such as magnesia cement presetting period is 35 minutes to 1 hour, the popping fold adding the starch swelling thing of flours can reach 90 times and water can reach a few hours steady time, in cement fondu process of setting, starch swelling thing is neither defeated and dispersed, is also not dissolved in the water of shaping slip.Before the defeated and dispersed dissolving of starch swelling thing, cement fondu completes initial set, and its inside no longer has mobility, and starch swelling thing just can complete the foaming space that filled with foaming material is formed, and then reduces the unit weight of product, makes product more lightweight.Simultaneously starch swelling thing in the course of processing through amylan that the gelatinization of Crushing of Ultrafine pyroprocessing is formed, gelatinization rate is up to more than 80%, spread with the peripherad space of the form of amylan at the later stage starch swelling thing of sclerosis, the internal structure of product is combined closely, and the bending and compressive strength reaching product significantly promotes.The sheet material of the method manufacture is adopted to may be used for fire-resistant door core, light cellular partition board core, architecture exterior wall insulating materials etc.
Embodiment
In order to make the object of invention, technical scheme and advantage clearly, below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
This kind of light building board manufacture method, comprises system foaming slip step, cement fondu is made slip, then in cement fondu, adds appropriate foam material stir, and forms foaming cement fondu mixed slurry;
Make moulding mixture slurry step, in foaming cement fondu mixed slurry, add appropriate property starch swelling thing stir, be formed into moulding mixture slurry;
Hardened forming step, carries out hardened forming by shaping slip injection moulding mould.
Specifically, described cement fondu refers to that setting time is shorter, and usual setting time is at hours half an hour to 3, and the presetting period is about 35 minutes to 1 hour.This cement fondu can adopt magnesium cement, as magnesia cement, magnesium oxysulfide concrete and phosphorus-oxygen-magnesium cement.
First to magnesium cement production systD slip, then will stir adding the appropriate frothing foam be made up of water and whipping agent in magnesium cement slurry, forming foaming magnesium cement mixing slip.Purposes according to product suitably increases or reduces gas release.
In foaming magnesium cement mixing slip, add appropriate property starch Peng compound again, and stir, be formed into moulding mixture slurry, this shaping slip is the foaming magnesium cement mixing slip containing sexual starch swelling thing.This property starch Peng U content can be the 1%-5% of magnesium cement quality, also can suitably increase as required or reduce.Described property starch swelling thing comprises the starch of corn, rice, flour and/or glutinous rice.Adopt magnesium cement mainly fast based on its sclerosis, the waterproof requirement of material of construction can be met simultaneously.The cement that therefore can only meet above-mentioned requirements can realize object of the present invention.The mixed slurry of above-mentioned starch Peng compound is reinjected in forming mould and be cured process.
Because magnesium cement is cement fondu, setting time is short, and the usual presetting period is 35 minutes to 1 hour, and the starch swelling thing of flours itself has certain water resisting property, in magnesium hardening of cement process, starch swelling thing is neither defeated and dispersed, is also not dissolved in the water of shaping slip.
Before the defeated and dispersed dissolving of starch swelling thing, magnesium cement completes initial set, and its inside no longer has mobility, and starch swelling thing just can complete the foaming space that filled with foaming material is formed, and then reduces the unit weight of product, makes product more lightweight.Magnesium cement sends a large amount of heats in process of setting simultaneously, the temperature of usual magnesium cement magnesium cement in process of setting is about 100 degree, starch swelling thing in magnesium hardening of cement process through the gelatinization of Crushing of Ultrafine pyroprocessing formed amylan, experimentally calculate, gelatinization rate is up to more than 80%, spread with the peripherad space of the form of amylan at the later stage starch swelling thing of sclerosis, the internal structure of product is combined closely, and the bending and compressive strength reaching product significantly promotes.
Adopt the sheet material of the method manufacture can act on interlayer for the production of color steel, fire door, ceiling etc., the building places such as dust-free purification, thermal insulation be warming can be widely used in.Its hydrolysis time of starch swelling thing for other classes is short, such as W-Gum puff, Starch rice puff hydrolysis time are shorter, just hydrolysis phenomena may be there is when initial set does not appear in cement, the additive adding and extend starch Peng compound dissolution time can be added in right amount, its hydrolysis time of starch swelling thing is extended, before starch swelling thing is not hydrolyzed, just sclerosis, also can reach object of the present invention.
According to different starch swelling thing characteristic, different additives is added for the hydrolysis time extending starch swelling thing, applicable additive can be selected according to prior art after starch swelling species is determined, make its hydrolysis time size jelling time.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. a kind of light building board manufacture method, comprising:
System foaming slip step, makes slip by cement fondu, then stirs adding the appropriate frothing foam be made up of water and whipping agent in cement fondu slip, forms foaming cement fondu mixed slurry;
Make moulding mixture slurry step, in foaming cement fondu mixed slurry, add appropriate property starch swelling thing stir, be formed into moulding mixture slurry; Hardened forming step, carries out hardened forming by shaping slip injection moulding mould.
2. kind of light building board manufacture method according to claim 1, is characterized in that: the 1%-5% contained for magnesium cement quality of described property starch Peng compound.
3. kind of light building board manufacture method according to claim 1 and 2, is characterized in that: described property starch swelling thing comprises the starch of corn, rice, flour and/or glutinous rice.
4. kind of light building board manufacture method according to claim 1, is characterized in that: cement fondu comprises magnesium cement.
5. kind of light building board manufacture method according to claim 4, is characterized in that: described magnesium cement comprises magnesia cement, magnesium oxysulfide concrete and phosphorus-oxygen-magnesium cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410672600.2A CN104402510A (en) | 2014-11-22 | 2014-11-22 | Manufacturing method of light building board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410672600.2A CN104402510A (en) | 2014-11-22 | 2014-11-22 | Manufacturing method of light building board |
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| Publication Number | Publication Date |
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| CN104402510A true CN104402510A (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410672600.2A Pending CN104402510A (en) | 2014-11-22 | 2014-11-22 | Manufacturing method of light building board |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104926266A (en) * | 2015-06-10 | 2015-09-23 | 安徽安旺门业有限公司 | Low-pollution fireproof door core |
| CN104961426A (en) * | 2015-06-10 | 2015-10-07 | 安徽安旺门业有限公司 | Fireproof door core |
| CN104987030A (en) * | 2015-06-10 | 2015-10-21 | 安徽安旺门业有限公司 | High-intensity fireproof door core |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1266082A (en) * | 1999-03-06 | 2000-09-13 | 王存孝 | Low-temp. material and making method |
| CN101139195A (en) * | 2007-08-24 | 2008-03-12 | 吴家根 | Method for preparing inorganic heat preservation insulating board |
| CN101203345A (en) * | 2005-06-09 | 2008-06-18 | 美国石膏公司 | High starch light weight gypsum wallboard |
-
2014
- 2014-11-22 CN CN201410672600.2A patent/CN104402510A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1266082A (en) * | 1999-03-06 | 2000-09-13 | 王存孝 | Low-temp. material and making method |
| CN101203345A (en) * | 2005-06-09 | 2008-06-18 | 美国石膏公司 | High starch light weight gypsum wallboard |
| CN101139195A (en) * | 2007-08-24 | 2008-03-12 | 吴家根 | Method for preparing inorganic heat preservation insulating board |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104926266A (en) * | 2015-06-10 | 2015-09-23 | 安徽安旺门业有限公司 | Low-pollution fireproof door core |
| CN104961426A (en) * | 2015-06-10 | 2015-10-07 | 安徽安旺门业有限公司 | Fireproof door core |
| CN104987030A (en) * | 2015-06-10 | 2015-10-21 | 安徽安旺门业有限公司 | High-intensity fireproof door core |
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Application publication date: 20150311 |