CN102085689A

CN102085689A - Production method for inorganic foaming board

Info

Publication number: CN102085689A
Application number: CN201010560545XA
Authority: CN
Inventors: 卢文成
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-26
Filing date: 2010-11-26
Publication date: 2011-06-08

Abstract

The invention discloses a production method for an inorganic foaming board, comprising the steps of pouring and foaming in a flat die. After the foaming process is finished and a material has no flowability, the material is pressed from the upper surface to the required thickness by using a flat clamp, and then a curing process is carried out. The production method for the inorganic foaming insulation board is characterized in that the material is pressed by using the flat clamp when the material has no flowability after the foaming is finished and before curing is carried out, so that the upper surface of the material is flat, and the thickness is guaranteed to be even and precise. In addition, a compact layer is formed on the upper surface after the material is pressed, the strength and the hardness of the surface of the material are enhanced, and fracture resistance, slag falling resistance and resistance to pressure are improved.

Description

The production method of inorganic foamed plate

Technical field

The invention belongs to building material field, is a kind of production method of inorganic foamed plate specifically.

Background technology

Inorganic foamed sheet material comprises foam cement plate and the foaming plaster plate that cement, flyash are made through foaming, the inorganic foamed cement pearlite slab, and its production process all is by cast in mould, foaming, maintenance condensation cure.

This class inorganic foamed material adopts the warming plate that forms after above-mentioned cast, foaming, the condensation cure production technology, owing to can't accurately controlling that natural foaming has, causes defectives such as the out-of-flatness of product upper surface, thickness and precision difference; In addition, though this inorganic foamed plate is because the low and good heat preservation performance of density, but its intensity of this porous loose structure is also relatively poor, slag even whole cracked is fallen on stressed easy surface when carrying, construction, the easy comminuted depression in surface during local compression, and then also cause the application property of product not good.

Summary of the invention

The above-mentioned deficiency of the inorganic foamed plate of producing at the production method of present inorganic foamed plate, the object of the present invention is to provide a kind of production method of novel inorganic foamed plate, the inorganic foamed plate surface strength that this method is produced is good, and surfacing, thickness are even.

A kind of production method of inorganic foamed plate is included in cast in the flat-die, foaming, it is characterized in that: after foaming is finished and material when no longer having flowability, be pressed downwardly onto desired thickness with flat clamp from upper surface, and then carry out maintenance.

Before cast, can also in flat-die, lay metal or nonmetal net earlier, or nonwoven or paper, to be compounded in foaming plate lower surface, to increase the intensity of foaming plate and protect its surface, prevent fracture or fall slag.

After having laid net or nonwoven, also can be coated with the inorganic slurry that one deck does not contain blowing agent; to form dense layer on the surface; form the hard containment vessel that one deck does not have the foaming pore on the porous loose structure surface; further strengthen intensity; not only can strengthen anti-fracture and resist to fall the slag performance, and surperficial anti-pressure ability also strengthens.

Surface after having been pressed by flat clamp can also be coated with one deck inorganic slurry to form dense layer, forms the duricrust of the nothing foaming pore harder than compacting surface on this surface.Before pressing after foaming is finished and with flat clamp, also the material surface after foaming is laid metal or nonmetal net, or nonwoven or paper, and to form enhancement Layer at foaming plate upper surface, the plate surface of foaming is strengthened handling.

The production method of this inorganic foamed plate of the present invention, owing to after foaming is finished and before maintenance, do not suppress with flat clamp when material has flowability, so not only can make the material upper surface smooth, and can guarantee that thickness is all even accurately.Do not have foaming pore or the middle less and less dense layer of part that foams of foaming pore ratio through suppressing back upper surface formation one deck in addition, strengthened the intensity and the hardness of material surface, improve anti-rupture, resist to fall slag and compressive property.

Description of drawings

Fig. 1 is lapping or a nonwoven in flat-die;

Fig. 2 is the brush inorganic slurry;

Fig. 3 is the inorganic foamed slurry of cast;

Fig. 4 is the foaming completion status;

Fig. 5 is for laying net or nonwoven;

Fig. 6 is the compacting state;

Fig. 7 is the compacting completion status;

Fig. 8 is the maintenance state;

Fig. 9 is inorganic foamed panel products.

Figure 10 is another kind of embodiment schematic diagram.

The specific embodiment

Below by a specific embodiment the present invention is described in further detail, to help understanding content of the present invention.

As shown in Figure 1, lay metal or nonmetal net 3 in the bottom of the flat-die of forming by flat underside 1 and rectangle framed 2, or nonwoven, framed and flat underside is a split-type structural, so that take off its frame as required before compacting.

As shown in Figure 2, be coated with the inorganic slurry 4 that one deck does not contain blowing agent in the flat-die bottom, and flatten with brush or trowel, slurry 4 will soak metal or nonmetal net 3, was compounded with the closely knit protective layer of net 3 with formation.Inorganic slurry can be for identical with the expanded material composition but do not contain the slurry of blowing agent, also can for the different inorganic slurry of follow-up expanded material composition.

As shown in Figure 3, the quantitative inorganic foamed slurry 5 of cast in flat-die, inorganic foamed slurry 5 can be any slurry of producing inorganic foamed plate that is applicable to, cement coal ash paste expanded material for example, Foamed Gypsum material, inorganic foamed cement perlite material etc.

As shown in Figure 4, inorganic foamed slurry foams, and forms the porous loose structure 6 that contains sealed porosity.

As shown in Figure 5, after foaming is finished and material when no longer having flowability, re-lay layer of metal or nonmetal net 7 at porous loose structure 6 upper surfaces, or nonwoven.Because material does not flow, can remove framed according to the height relationships of follow-up compacting amount and flat-die this moment.

As shown in Figure 6, semi-finished product are put on the press 8, be pressed downwardly onto desired thickness with flat clamp from upper surface, as shown in Figure 7, because foaming this moment has finished and material does not have flowability, and condensation cure not, during compacting be in the nip region of upper surface certain altitude material be extruded formation and do not contain foaming pore or little dense layer 9 that contains pore, so be not retained and pressure can not transmit following pore downwards, foaming plate middle part still is a porous loose structure 6, metal of Pu Sheing or nonmetal net 7 pressurizeds are merged into the surface that is compounded in dense layer 9 simultaneously, and guaranteed smooth and thickness accurate of upper surface because foaming process has been finished no longer and foamed this moment, evenly.Adopt press compacting efficient height, can certainly suppress by hand, or be put on the flat clamp with weight and suppress.

As shown in Figure 8, shift out press and carry out maintenance, the inorganic material condensation cure.Obtain the plate plate shown in Fig. 9,10, plate plate middle part is for containing the porous loose structure 6 of sealed porosity, to guarantee light weight and to have good heat-insulating property that porous loose structure 6 upper and lower surfaces are the dense layer 4,9 that does not contain the pore of foaming formation, and the net 3,7 of booster action is played on the surface.Product up and down two and smooth, and can guarantee the thickness uniformity of identical product or same specification requirement different product.

For the process of deployment of netting among Fig. 1 and Fig. 5, can select for use or need not according to the requirement of product.And brush inorganic slurry process also can determine whether select for use as required among Fig. 2.

In addition, as shown in figure 10, also can be coated with one deck inorganic slurry on the surface of being pressed by flat clamp to form dense layer 10, this inorganic slurry can form the duricrust that does not have the foaming pore at product surface.

Claims

1. the production method of an inorganic foamed plate is included in cast in the flat-die, foaming, it is characterized in that: after foaming is finished and material when no longer having flowability, also be pressed downwardly onto desired thickness with flat clamp from upper surface, and then carry out maintenance.

2. production method as claimed in claim 1 is characterized in that: lay metal or nonmetal net, perhaps nonwoven before cast earlier in flat-die.

3. production method as claimed in claim 2 is characterized in that: also be coated with the inorganic slurry that one deck does not contain blowing agent after having laid net or nonwoven, to form dense layer on the surface.

4. as described production method one of in the claim 1 to 3, it is characterized in that: after foaming is finished and before pressing with flat clamp, also the material surface after foaming is laid metal or nonmetal net, perhaps nonwoven.

5. as described production method one of in the claim 1 to 3, it is characterized in that: the surface after having been pressed by flat clamp also is coated with one deck inorganic slurry to form dense layer.

6. production method as claimed in claim 4 is characterized in that: the surface after having been pressed by flat clamp also is coated with one deck inorganic slurry to form dense layer.

7. as described production method one of in the claim 1 to 3, it is characterized in that: described flat-die is by flat underside and rectangle is framed forms, and framed and flat underside are split-type structural.

8. as described production method one of in the claim 1 to 3, it is characterized in that: flat clamp is to press down with press.