JPS6159892B2 - - Google Patents

Description

[Detailed Description of the Invention] [Summary] The present invention involves sandwiching a flat inorganic kneaded material between two hard materials such as upper and lower metal plates,
The present invention relates to a method for manufacturing an inorganic composite panel for building materials, in which the inorganic kneaded material is placed in a heating furnace, foamed and bonded to a hard material, and integrally formed.

[Prior art]

Conventionally, composite panels using this type of inorganic material are formed by using gypsum, water glass, etc. as a binder, mixing perlite or various artificial inorganic aggregates, and solidifying the mixture by sandwiching it between thin iron plates, etc. However, these panels had the disadvantage that it took a long time to dry the binder, making them unsuitable for mass production and resulting in high costs.

〔the purpose〕

The present invention eliminates the above drawbacks and is an inorganic kneading product in which silicate powder such as perlite and silica flour is kneaded with a liquid mixture of alkali silicate, slaked lime, and alkaline alum, and this is formed into a flat plate. To provide a method for manufacturing an inorganic composite panel for building materials, in which an object is sandwiched between two hard material plates, placed in a heating furnace, heated and foamed, and the inorganic kneaded material is brought into close contact with the hard material plates, and integrally formed. The purpose is to

〔composition〕

Next, a method for manufacturing an inorganic composite panel for building materials (hereinafter simply referred to as a panel) according to the present invention will be explained using the drawings. FIG. 1 is a schematic diagram of an embodiment showing the above manufacturing process, in which 1 is an upper hard material plate;
Reference numeral 2 denotes a lower hard material plate, which forms the upper and lower surfaces of panel A. The material is a thin metal plate, a silica plate, etc. In the case of a thin metal plate, as shown in Fig. 1,
It is continuously supplied by the coils 1a and 2a, or in the case of a Keikal plate or the like, in the form of a cut plate. 3 is a feeder for supplying the inorganic kneaded material 5, which is a mixture of an alkali silicate such as sodium silicate, slaked lime, and/or a saturated solution of alkaline alum such as potassium alum, or (and) a sodium borate solution. An appropriate amount of silicate powder such as pearlite powder, white carbon, or silica flour is mixed into the solution, and the inorganic kneaded material 5, which is kneaded into a rice cake shape, is passed through the slit 4 to form the lower hard material, as shown in FIG. 2a. It is supplied in the form of a flat plate on the plate 2.
To explain further, the width of the slit 4 is approximately the same as the width of the lower hard material plate 2, or is slightly smaller. In addition, as the feeder 3, it is also possible to use a vacuum extrusion molding machine or a vacuum clay kneading extrusion molding machine. After placing the inorganic kneaded material 5 on the lower hard material plate 2, the upper hard material plate 1 is supplied from the coil 1a.
Panels A' are stacked in front of the inlet 6a of the heating furnace 6 as shown in FIG. In the heating furnace 6, the panel A' shown in Fig. 2 was heated at a temperature of 450 to
The inorganic kneaded material 5 is gradually foamed by heating at 500°C.
The inorganic kneaded material 5 completely becomes a foamed inorganic material 5' as shown in FIG.
Panel A formed into a body is delivered. Note that among the materials for the upper and lower hard material plates 1 and 2, when using thin metal plates, punched metal plates, wire mesh, etc. may be used depending on the use and purpose. In this case,
The foamed inorganic material 5' is embedded in the punched holes of the metal plate, the mesh of the wire mesh, etc., which not only strengthens the adhesive force but also reduces the overall weight. It is also possible to use a metal thin plate as the lower hard material plate 2 and form it in advance into a predetermined shape, for example, a gutter-like cross section with male and female connecting parts on the side edges, and supply the inorganic kneaded material 5 to the gutter-shaped part. be.

〔effect〕

As mentioned above, according to the method for manufacturing an inorganic composite panel for building materials according to the present invention, the inorganic kneaded material is formed into a single piece while foaming in a heating furnace, so no adhesive is required, and the process is extremely simple. It has the characteristics of being able to be mass-produced and significantly reducing costs.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram illustrating the manufacturing method of an inorganic composite panel for building materials according to the present invention, and FIGS. 2 a to 2 c are explanatory diagrams showing the state of the inorganic composite panel for building materials in each step. 3...Feeder, 4...Slit, 6...Heating furnace.

Claims (1)

[Claims] 1 Extract an inorganic kneaded material made by kneading alkali silicate, slaked lime, and/or alkaline alum solution, and/or sodium borate solution, and silicate powder such as perlite and silica flour into a flat plate through a slit to form a hard lower part. The inorganic kneaded material is placed on the material plate, and then the upper hard material plate is laminated on the conveyor and then passed through a heating furnace to heat and foam the inorganic kneaded material and transform it into a foamed inorganic material. A method for manufacturing an inorganic composite panel for building materials, characterized by forming the panel in one piece.