JPH07117034A - Production of reinforcement-containing extruded material - Google Patents

Abstract

PURPOSE:To enable a reinforcement to exhibit its intrinsic superior performance by bringing the reinforcement into slight contact with a body. CONSTITUTION:In an extruding part 1, a die 5 is disposed at a tip part 41 of an introducing tube 4 with an insertion tube 31, of the extruding part 1, and a screw conveyor 2 is provided rearward of the die 5. Furthermore, a conveyor 86 is provided frontward of the extruding part 1. An extruded material 6 extruded from the die 5 moves in the direction of an arrow. The insertion tube 31 is extended to an outlet 72 of the die 5. in this manner, a reinforcement 7 is extruded simultaneously with the extrusion of a body 61 contained in the extruding part 1. Since the both move at the same speed, the body 61 adheres to the reinforcement 7 with a small adhesive force. Next, the obtained extruded material 6 is cured at 180 deg.C for 1.5hr in an autoclave, whereby the reinforcement 7 is brought into slight contact with the body 61. The intrinsic performance of the reinforcement 7 can be obtained, and a superior reinforcing performance can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an extruded material containing a reinforcing material, and more particularly to a method for producing an extruded material containing a reinforcing material that can provide original excellent reinforcing performance.

[0002]

2. Description of the Related Art Extruded materials such as extruded cement boards used for outer walls of buildings and extruded cement boards for molds are
It is reinforced by inserting reinforcing iron wire and roving material,
An extruder for producing such an extruded material is
As is known in the art, the structure of the extrusion molding part of this extrusion molding machine is such that the extrusion molding part 1 includes an induction pipe having an insertion pipe 3 and a guide pipe which follows the extrusion pipe 1 as shown in a sectional view in FIG. It has a screw conveyor 2 into which a base material (for example, cement) is press-fitted, and a die 5 is attached to the leading end of the guide tube of the extrusion molding section 1. The extrusion molding machine having the extrusion molding unit 1 sends the base material to the distal end portion by the screw conveyor 2 and the reinforcement material 7 from the insertion tube 3, so that the extrusion molding material 6 having the reinforcement material 7 from the mouthpiece 5 is produced. It is pushed onto the belt conveyor 8.

[0003]

However, when an extrusion molding material is manufactured by using an extrusion molding machine having such an extrusion molding portion 1, the extrusion molding material 6 has a base material 61 at the tip portion of the extrusion molding portion 1. After being extruded, the reinforcing material 7 is in close contact with the base material 61 while being sandwiched between the base materials 61, and is pulled by the adhesive force and pushed out together with the base material 61. As a result, the base material 61 and the reinforcing material 7 are too close to each other. On the contrary, there is a problem that the reinforcing effect is weakened, and particularly when the reinforcing material 7 is made of a synthetic resin such as an aramid roving material, it is remarkable.

Therefore, as a result of various investigations by the present inventors in order to solve the above-mentioned problems, the tip 71 of the insertion tube 3 through which the reinforcing material 7 is inserted in the extruded part 1 as shown in FIG. The base material 61 and the reinforcing material 7 are formed by the method of extending and providing to the outlet of the die 5 attached to the tip of the extrusion molding portion 1.
Since the base material 61 and the reinforcing material 7 are pulled out in a weakly adhered state instead of being drawn out by the adhesive force of the reinforcing material 7, the base material and the reinforcing material are slightly in contact with each other by curing the obtained extruded material. The present invention has been completed based on this finding, finding that original excellent performance can be obtained.

Therefore, the problem to be solved by the present invention is to provide an extruded material containing a reinforcing material capable of exhibiting the original excellent performance of the reinforcing material 7 in a state where the reinforcing material 7 and the base material 61 are slightly in contact with each other. It is to provide a manufacturing method.

[0006]

Means for solving the problems of the present invention are achieved by each invention as follows. (1) The base material is press-fitted into an extrusion-molded portion in which the tip of the insertion tube is arranged at the outlet of the die and pushed out from the die, while the reinforcing material is sent out from the tip of the insertion tube through the insertion tube, A method for producing an extruded material containing a reinforcing material, comprising forming an extruded material in which the reinforcing material is embedded in a base material, and then subjecting the extruded material to autoclave curing.

(2) A desired number of insertion pipes are juxtaposed and the inner diameter of the insertion pipes and the outer diameter of the reinforcing material are substantially the same, and the extruded material containing the reinforcing material according to the above (1). Manufacturing method.

(3) The method for producing an extruded product containing a reinforcing material according to the above (2), characterized in that the insertion tubes arranged side by side are arranged at the upper part and the lower part.

The present invention will be described in more detail below. Since the method of manufacturing the extruded material containing a reinforcing material of the present invention is installed so that the tip of the insertion tube is located at the outlet of the die, it is possible to remove the harmful effect of strong adhesion between the base material and the reinforcing material. In addition, since the obtained extruded material containing the reinforcing material is cured in an autoclave, it has an excellent effect that the original performance of the excellent reinforcing material can be exhibited. Further, by increasing the number of insertion tubes to a plurality and arranging the insertion tubes in the upper part and the lower part of the extrusion molding part, it is possible to manufacture an extrusion molding material having a further excellent reinforcing effect. Furthermore, since the inner diameter of the insertion tube and the outer diameter of the reinforcing material are substantially the same and are arranged at the position of the outlet of the mouthpiece, the base material hardly flows backward and spouts from the reinforcing material insertion opening of the insertion tube. The inner diameter of the insertion tube is preferably 1 mm to 3 mm.

The base material used in the present invention is made of an ordinary cement raw material, and the material of the reinforcing material is not particularly limited. For example, a glass roving material,
It is made of at least one of an aramid roving material and a synthetic fiber roving material. The glass roving material and the aramid roving material are obtained by bundling a plurality of glass fiber or aramid fiber filaments to form a cord-like body.
When synthetic fibers are used, polyamide-based fibers, polypropylene-based fibers, polyurethane-based fibers, polyester-based fibers, etc. may be used as a roving material in the same manner as glass fibers or aramid fibers, or in the form of mesh. Besides this,
Carbon fibers, vinylon, etc. are used as the roving material.

The size of the extruded material can be any desired size, but the width is usually 600 mm to 1000 m.
m, length 2000 mm to 4000 mm, thickness 25 mm
A 50 mm one is used. In the present invention, the extruded material obtained as described above is cured by autoclave,
This curing condition is a pressure of 2 kg / cm ^{2 to} 10 kg / cm
^{2. The} temperature is preferably 120 ° C to 180 ° C.

[0012]

In the method for manufacturing an extruded material containing a reinforcing material according to the present invention, the tip of the insertion tube provided at the end of the formed portion of the extruded material is located at the outlet of the die attached to the end of the formed portion. By extending so as to come into contact with the base material, the adverse effect of strong adhesion between the base material and the reinforcing material is eliminated, and the base material and the reinforcing material can be adhered with a weak force. Further, by subjecting the obtained extruded material containing a reinforcing material to autoclave curing, the base material contracts and the base material and the reinforcing material come into a state of slightly contacting each other, and excellent reinforcing performance can be obtained without impairing the original performance of the reinforcing material. . Further, by increasing the number of insertion tubes to a plurality and arranging the insertion tubes in the upper part and the lower part of the extrusion molding part, it is possible to manufacture an extrusion molding material having a further excellent reinforcing effect.

[0013]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples.

EXAMPLE FIG. 1 is a cross-sectional view showing the structure of an extruded part used in the method for producing an extruded material containing a reinforcing material according to the present invention. In FIG. 1, the extrusion molding unit 1 is provided with a base 5 at a tip end portion 41 of a guide tube 4 of the extrusion molding unit 1 including an insertion pipe 31, and a screw conveyor 2 is provided behind this. Further, a conveyor 8 is installed in front of the extrusion molding unit 1, and the extrusion molding material 6 extruded from the die 5 moves in the arrow direction. Here, the insertion tube 31 is provided so as to extend to the outlet 72 of the base 5. As a result, the base material 61 in the extrusion-molded portion 1 is extruded and at the same time the reinforcement material 7 is extruded, and these move at the same speed, so that the base material 61 adheres to the reinforcement material 7 with a weak force. Then, the obtained extruded material 6
After autoclaving at 80 ° C for 1.5 hours, the base material 6
1 and the reinforcing material 7 are slightly in contact with each other, the original performance of the reinforcing material 7 is obtained, and excellent reinforcing performance is obtained.

FIG. 2 is a partial perspective view showing the extruded portion to which the mouthpiece shown in FIG. 1 is attached. The mouthpiece 5 is attached to the leading end 4 of the guide tube of the extruded portion 1, and the insertion tube is further inserted. 3 are extended and juxtaposed at the exit of the base 5. 3 is a perspective view showing an extruded material extruded by the extruded part of FIG. 2, and 6 is an extruded material,
7 is a reinforcing material.

FIG. 4 shows another embodiment of the structure of the extruded part used in the method for producing an extruded product containing a reinforcing material according to the present invention, which is a cross-sectional view showing the structure of the extruded part in which insertion tubes are arranged above and below. It is a figure. In FIG. 4, the insertion tube 32 is arranged in the upper part of the extruded portion so that the reinforcing material is inserted from above, and the tip 73 of the insertion tube 32 is arranged at the outlet of the base 5. Further, the insertion tube 33 is arranged at the lower part of the extruded portion so that the reinforcing material is inserted from below, and the tip 74 of the insertion tube 33 is arranged at the outlet of the base 5. By arranging the insertion pipes 32 and 33 in the vertical direction in this manner, it is possible to obtain more excellent reinforcing performance.

[0017]

In the method for manufacturing an extrusion-molded material containing a reinforcing material of the present invention, since the tip of the insertion tube is extended to the outlet of the die attached to the tip of the extrusion-molded portion, the base material and the reinforcing material are disposed. It has an excellent effect that it can be bonded with a weak adhesive force, and by further curing, excellent reinforcing performance can be obtained without impairing the original performance of the reinforcing material.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a structure of an extrusion molding part used in a method for manufacturing an extrusion molding material containing a reinforcing material of the present invention.

FIG. 2 is a partial perspective view showing an extrusion molding unit of FIG.

FIG. 3 is a perspective view showing an extrusion-molded material obtained by the method for producing an extrusion-molded material containing a reinforcing material of the present invention.

FIG. 4 is a cross-sectional view showing another embodiment of the structure of the extrusion-molded portion used in the method for manufacturing an extrusion-molded material containing a reinforcing material of the present invention.

FIG. 5 is a cross-sectional view showing a structure of an extrusion molding portion used in a conventional method for manufacturing an extrusion molding material containing a reinforcing material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Extrusion molding part 2 Screw conveyor 3, 31, 32, 33 Insertion tube 4 Guide tube 41 Guide tube tip part 5 Base 6 Extrusion molding material 61 Base material (cement material) 7 Reinforcing material 71, 72, 73, 74 Tip of insertion tube 8 Belt conveyor 9 Roller

Claims (3)

[Claims] 1. A base material is press-fitted into an extrusion-molded portion disposed at a position of an outlet of a mouthpiece and pushed out from the mouthpiece, while a reinforcing material is sent out from the tip of the insertion tube through the insertion tube, A method for producing an extruded material containing a reinforcing material, which comprises forming an extruded material in which the reinforcing material is embedded in a base material from a die and then subjecting the extruded material to autoclave curing. 2. The production of an extruded product with reinforcement material according to claim 1, wherein a desired number of insertion tubes are juxtaposed and the inner diameter of the insertion tube and the outer diameter of the reinforcement material are substantially the same. Method. 3. The method for producing an extruded product containing a reinforcing material according to claim 2, wherein the juxtaposed insertion tubes are arranged at an upper part and a lower part.