JPS63291884A - Colored glazed building panel and production thereof - Google Patents

Abstract

PURPOSE:To contrive to produce colored glazed building panels having high nobleness and good appearance industrially and advantageously, by applying transparent or translucent glaze to colored inorganic panels by flame spray coating and decorating. CONSTITUTION:The colored glazed building panels are formed by applying transparent or translucent glaze to colored inorganic panels by flame spray coating and decorating. Colored cement concrete panels which are obtained by coloring inorganic panels essentially consisting of cement concrete are preferable as the colored inorganic panels with respect to industrial aspect and performance. The colored inorganic panels used are obtained by dispersing heat- resistant pigment for ceramic ware into inorganic panels and coloring.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a colored glazed architectural panel and a method for manufacturing the same. More specifically, the present invention relates to a colored glazed architectural panel in which the surface of a colored inorganic panel such as a colored concrete panel is coated with a transparent or translucent glaze by flame spraying, and a method for producing the same.

[Prior Art] It has been known that various architectural molded bodies can be made into decorative objects by subjecting them to surface treatment depending on their materials.

For example, it is generally known that when applying glaze to cement products such as concrete boards, tiles are pasted or the glaze is fired and made into a decorative material (Japanese Patent Laid-Open No. 60-122
782, JP-A-60-176932, JP-A-60-65779).

Another method is to glaze a concrete plate and then heat and fire only the surface using a burner (Japanese Patent Application Laid-Open No. 60-197).
-5086 publication).

Incidentally, a method of surface-processing the surface of materials such as metals or ceramics by thermal spraying is known, but thermal spraying technology has made remarkable progress with the recent development of thermal spray guns and thermal spraying materials.

For this reason, several applications of thermal spraying to building materials have been proposed.
No. 775), or surface decoration method by flame spraying cement and/or cement clinker (Japanese Patent Laid-Open No. 61
-10088) etc. have been proposed.

Problems to be Solved by the Invention] Problems with conventional glazed concrete products are as follows.

■When attaching tiles, ceramic plates, etc. to a concrete board, there is a possibility that the tiles, etc. will peel off due to changes over time. Tiles or ceramic plates generally have a size of 300x3001 square or less, and it is impossible on a commercial basis to manufacture a single piece of large size such as 100x2500 square.

■When glazing concrete products and firing them in a heating furnace, etc., in order to improve the heat resistance of the concrete base material,
Special consideration had to be given to the composition of fire-resistant materials such as aggregates and cement. A large firing furnace such as a tunnel furnace or a single furnace is required as a firing means, and a large amount of thermal energy is required to heat the entire concrete base material. Furthermore, rapid heating and cooling of the concrete base material causes cracks to occur, so heating and cooling in the firing furnace requires a long time.

As described above, this type of method is unprofitable and uneconomical because it involves large-scale capital investment and sacrifice of thermal energy.

■The above glass spray coating method (Japanese Patent Application Laid-Open No. 60-235775
The glaze is applied by plasma spraying, but this method requires that the gas used be an inert gas such as N2, N2, Ar or He, and that high heat of 10,000°C or higher is required. Therefore, when it comes to low-melting-point thermal spray materials such as glass powder, the yield of the thermal spray material is poor due to volatilization or evaporation.

Further, plasma spraying is not suitable for mass production of large-scale molded bodies, and has problems such as high production costs.

On the other hand, in the method of thermally spraying cement or cement clinker by flame spraying, the problem of volatilization is the same as that mentioned above because the cement is very fine particles, and it is also impossible to form a glass coating.

For this reason, the present inventors first studied the application of glaze to cement concrete panels by flame spraying, and hoped to succeed in its development (Japanese Patent Application No. 71964/1982).

However, even if an attempt is made to apply a colored glaze directly using a flame spraying method in order to obtain a colored panel, fading and color spots occur, making it impossible to obtain the desired uniformly colored colored panel using the above method.

The reason for this is thought to be that the flame temperature during flame spraying is extremely high, and the colored glaze thermally decomposes, causing discoloration and discoloration.

[Means for Solving the Problems] In view of the above-mentioned problems, the present invention was completed as a result of extensive research into inexpensive colored glazes for cement concrete panels and the like.

Accordingly, the present invention resides in a colored glazed architectural panel characterized in that it is made by glazing a colored inorganic panel with a transparent or translucent glaze by flame spraying.

Furthermore, the present invention provides a colored inorganic panel by molding an inorganic base material obtained by adding and mixing a coloring agent such as a heat-resistant pigment or a pigment for ceramics to an inorganic base material raw material, and then flame spraying the panel surface with a transparent or translucent glaze. The present invention relates to a method for manufacturing a colored glazed architectural panel, which is characterized by applying the glaze using a method.

[Work] The present invention will be explained in detail below.

In the present invention, the inorganic molded article for construction that is the material to be thermally sprayed is hardly limited and can be widely applied. This is one of the advantages of the present invention, although the flame temperature in flame spraying is in the range of 2000-3000°C.
This is because the heat load on the base material is extremely small, for example around 150° C., and therefore there is little thermal shock to the base material.

Therefore, the inorganic molded body in the present invention is a building material molded using one or more types of inorganic materials as main raw materials, but its shape is often a panel, and other shapes such as
It may have any desired shape depending on the purpose of the building material, such as concave, convex, wavy, or block-like.

Examples of inorganic materials include cement, calcium silicate, silica, gypsum, carbon, various by-product slags, lime,
Magnesia, alumina, iron oxide, aluminosilicate (
Examples include one or more synthetic or natural products selected from zeolite), perlite, shirasu, clay minerals, glass foam, asbestos, and the like.

Typical construction materials using such materials include cement concrete boards, cement mortar boards, ALC boards, lightweight cement boards containing lightweight inorganic particles, gypsum boards, asbestos slate boards, calcium silicate boards, and blocks thereof. It is mentioned in

In addition, these molded bodies may be formed by laminating molded bodies of the same or different types, and as long as these are the main materials, various fire-resistant aggregates, granular materials such as metal materials, and short fibers may be used as fillers. There is no problem even if it is blended as

In the above, from an industrial and performance standpoint, cement concrete panels in the presence or absence of various fire-resistant aggregates are most suitable for the present invention.

In the present invention, it is important that the panel is colored in a predetermined color tone by dispersing a heat-resistant colored pigment in advance.

That is, the colored glazed architectural panel according to the present invention is characterized in that a transparent or translucent glaze is applied onto the colored panel by flame spraying.

The transparent or translucent glaze is not particularly limited as long as it can be applied to the base material by flame spraying, but in most cases, glazes known in the field of ceramic manufacturing such as tiles are preferred.

The thickness of the glazed film on a colored panel varies depending on the use of the panel, the type of glaze, the physical properties of the panel, and the glazing conditions by flame spraying, but in most cases it is 0.05 to 1.
The colored glazed architectural panel according to the present invention, which has a pot ring preferably in the range of 0.1 to 0.5 cm, is a colored inorganic panel coated with a transparent or semi-transparent glaze, so it has a lower diameter than a simple colored panel. The aesthetic appearance is completely different, and it is uniform and dignified with virtually no color spots.

The colored glazed architectural panel according to the present invention can be produced industrially advantageously by the following method.

That is, in the manufacturing method according to the present invention, a colored panel is obtained by molding an inorganic base material prepared by adding and mixing a coloring agent such as a heat-resistant pigment or a pigment for ceramics to an inorganic base material, and then the panel surface is coated with a non-transparent, semi-transparent material. Flame spraying method with glaze (characterized by glazing).

The inorganic base material is as described above, and the coloring material added thereto is a coloring material such as a heat-resistant pigment or a pigment for ceramics. Ceramic pigments are known in the art, for example Zr-5i
-Pr series, Ti-8b-Cr series, Zr-V series, Ti-C
r-W system, Ti-3b-Cr-Fe system, Fe-8b-C
r-Si system, Fe-Cr-Zn system, Fe-Cr-Zn-
3i system, Fe-Cr-Zn-Mn system, Aj! -Mn-based,
5n-Cr system, S n -Cr-Co system, C.

-Zn-8i system, Co-3i system, Co-Al-Cr system,
Zr-3i-V system, Cr-Al1! system, Cr-Co-A
J-Zn series, Fe-Cr series, Cr-Fe-C
It is a frit or fired pigment containing so-called transition element oxides and silicates such as o -M n series and Fe-1 series.

The blending ratio of these colorants to the inorganic base material varies depending on their type, physical properties, purpose of use, etc., but in most cases it is 0.5 parts by weight per 100 parts by weight of the inorganic base material.
-5 parts by weight, preferably 1-3 parts by weight.

The reason for this is that if the blending ratio is less than 0.5 parts by weight, no coloring effect can be expected, and if it exceeds 5 parts by weight, the strength of the molded material will deteriorate, and furthermore, it is economically unfavorable.

The method for producing an inorganic substrate with a coloring material added thereto is not particularly limited, and an operation of adding a desired amount of a coloring material at the raw material preparation stage in a known production method may be used.

For example, to give one example of creating a concrete color block, white cement is preferably colored with a refractory powder such as chamotte, volcanic rock, calcined mullite, slag, etc. as an aggregate, or an auxiliary material such as finely divided silica as another filler. After blending with the materials, a predetermined amount of water is added, mixed, and shaped.

It is desirable that colored inorganic panels be thoroughly dried and dehydrated before being glazed by flame spraying.

Therefore, as a means of this, prior to glazing the dry panel,
It is best to preheat with flame spraying.

The reason for this is that if there is moisture near the panel surface, cracks are likely to occur in the mucous membrane due to dehydration during glazing by flame spraying, impairing the aesthetic appearance of the glazed surface and causing peeling.

Next, since the glaze used in the flame spraying method is used for cosmetic purposes that takes advantage of the coloring of the colored panel, it must be transparent or translucent, or if desired, pale milky white, and generally contains no glaze. Lead borate and lead-free borate frits are used.

Glazing by flame spraying is performed using oxygen, air, and flammable gases such as propane and hydrogen, and the surface temperature of the panel is approximately 150-2.
It is necessary to repeat the process at a temperature not exceeding 50°C.

For this purpose, the spraying machine or panel is moved at a constant speed to glaze the panel surface, the scanning speed is 2 to 5-7 minutes, and the spray distance from the spray burner to the panel surface is 300 minutes.
-400 mm, preferably 330-380 mm is suitable.

By applying the glaze using flame spraying, it creates a classy,
Beautiful colored inorganic panels can be advantageously produced industrially and are particularly effective as architectural panels.

Note that the above-mentioned glazing operation may be performed multiple times as necessary.

[Example] The present invention will be further explained with reference to Examples and Comparative Examples below.

K1 Kurishiro Cement [Onoda Cement Co., Ltd.] 1100 copies;
100 parts of crushed chamotte, 3 parts of Ti-3b-Cr yellow ceramic pigment (Hyuga Sangyo, G-455) and 35 parts of water were mixed, the resulting mixture was charged into a formwork, and the concrete color block (3001 Part m x 300 mm x 30 wheels m
)It was created. After removing the frame and air drying, preheat the concrete color block with flame only without taking out the spraying material to remove moisture, then spraying distance #Ii: 350III1
11. When borosilicate frit was sprayed by flame spraying using propane, oxygen, and air using flame spraying conditions of 3 m/min at scanning speed, a beautiful yellow makeup with a surface glass layer of about 100μ was obtained. A board was obtained.

F e -Cr -Z n-based ceramic pigment (Hyuga Sangyo Co., Ltd.
A concrete color block was prepared in the same manner as in Example 1 except that M-10) was used, and it was thermally sprayed with borosilicate frit in the same manner as in Example 1. A beautiful chestnut brown decorative board with a surface glass layer of about 100 μm was obtained.

A decorative board was prepared in the same manner as in Example 1, except that the following ceramic pigment (manufactured by Hyuga Sangyo) was used.

□ ・Kamijo JL3 F
e-Cr-based (L-96) Reddish brown 4 Ti
-Cr-1 series (T-9) Reddish brown 5 ^ffi
-Mn series (B-300) Pink 6 Co
-Zn-5i series (M-470) Cobalt blue Co-Zn-^l series (N-923) Cobalt blue 8 Zr-5i-V series (M-1700)
) Rucoblue 9 Cr-Ca-^1-Zn series (
M-128) Peacock 10 Fe-Cr system (M-
252) Gray 11 Cr-Fe-Co-M
n-based (M-617) black gray 12 Cr-Fe-Co
System (M-700) Black gray 13 Zr-V system (
Z-580) Yellow Chestnut JJL” - White cement [manufactured by Onoda Cement Co., Ltd., 3100 parts,
Mix 35 parts of crushed chamotte and 35 parts of water, charge the resulting mixture into a formwork, and fill it with white concrete blocks (5 parts).
00mmX 500m+wX 20+m) was created.

After removing the frame and drying naturally, borosilicate frit was sprayed by flame spraying using propane, oxygen, and air using the following flame spraying conditions: spraying distance = 350n+m, scan speed: 3ta, 1 minute, and the result was approximately 150μ A beautiful decorative board with a surface glass layer was obtained.

E1: The same cobalt blue colored concrete block as in Example 6 was used in the same manner as in Example 14, except that the flame spraying conditions were changed to spraying distance: 400 mm and scanning speed = 4 mm/min. When borosilicate frit was sprayed by flame spraying, a beautiful decorative board with a surface glass layer of about 500 μm was obtained.

The same pink concrete block as in Example 5 was used in the same manner as in Example 14, except that the flame spraying conditions were changed to spray distance: 400 mm and scanning speed: 2.5 m/min. When borosilicate frit was sprayed by flame spraying, a beautiful decorative board with a surface glass layer of about 300 μm was obtained.

The same method as in Example 14 was used except that the flame spraying conditions were changed to spray distance = 350IlIII+ and scanning speed: 2.5 m/min using the same white concrete block as in Example 14. When borosilicate frit was thermally sprayed, a beautiful decorative board with a surface glass layer of about 600 μm was obtained.

As shown in Examples 14 to 17, as the thickness of the glazed film increased, the sense of mass improved due to the relationship with the refractive index of the glazed film.

A concrete color block was prepared by increasing the amount of the ceramic pigment (M-10) used in Example 2 to 5 parts. The color tone of the resulting concrete color block was quite deep, but the bending strength of the concrete color block increased from 90 kg/cm2 when 3 parts of ceramic pigment was added to 80 kg/cm2.
It decreased to 9/c+w”.

Maru 1 Takumi L% Part of the glass layer of the decorative board obtained in Example 1 was peeled off,
A borosilicate frit was sprayed on top for reinforcement purposes. The thickness of the glass layer in the unpeeled portion was approximately 200 μm, but no change in color tone was observed.

[Effects of the Invention] According to the present invention, cement base materials, in other words, almost all secondary cement products can be inexpensively used as construction base materials, gypsum materials, asbestos slate materials, calcium silicate, and other inorganic construction materials. It can be applied to create beautiful glazed makeup.

Applications include, for example, for housing and multi-story buildings, including exterior materials, interior materials, partition materials, various panels, blocks, roofing materials, flooring materials, stair treads, bathrooms, basements, and other areas that come into contact with water. Examples include building materials.

Claims (1)

[Claims] 1. A colored glazed architectural panel, characterized in that it is made by glazing a colored inorganic panel with a transparent or translucent glaze by flame spraying. 2. The colored glazed architectural panel according to claim 1, wherein the colored inorganic panel is a colored cement concrete panel made of cement concrete as a main material. 3. Claim 1, wherein the colored inorganic panel is colored by dispersing a heat-resistant pigment for ceramics into the inorganic panel.
A panel for colored glazing according to item 1 or 2. 4. A colored inorganic panel is obtained by molding an inorganic base material obtained by adding and mixing a coloring agent such as a heat-resistant pigment or a pigment for ceramics to the inorganic base material raw material, and then flame-coating the surface of the panel with a transparent or translucent glaze. A method for manufacturing a colored glazed architectural panel, characterized in that the glaze is applied by a thermal spraying method. 5. The method for producing a colored glazed architectural panel according to claim 4, wherein the colored inorganic panel or metal panel is preheated.