JP3763463B2 - Manufacturing method and manufacturing apparatus of pipe-shaped composite material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a manufacturing method and a manufacturing apparatus for a pipe-shaped composite material for manufacturing a pipe-shaped composite material by passing a large number of linear materials as a core material in a furnace filled with molten metal.
[0002]
[Prior art]
Conventionally, in Japanese Patent Laid-Open No. 7-284907, as shown in FIG. 8, as a fiber reinforced composite wire manufacturing apparatus 30, a ceramic fiber bundle 33 is passed as a core material in a crucible 32 filled with a molten metal 31. Thus, a pressure impregnation type manufacturing apparatus for manufacturing a wire-shaped fiber reinforced composite wire 34 is described.
[0003]
In the manufacturing apparatus 30 described above, the ceramic fiber bundle 33 is drawn out from the delivery bobbin 35 by being pinched by the pinch roll 36, deflected by the guide pulley 37, passed through the nozzle 38 and immersed in the molten metal 31 in the crucible 32, Further, after being deflected again by the guide pulley 39 in the crucible 32 and squeezed by the die 40, it is wound around the winding bobbin 42 via the guide pulley 41.
[0004]
In addition to the pressure impregnation method described above as a manufacturing method using a fiber reinforcement, for example, there is a batch method used when manufacturing a pipe-shaped composite material. In this batch method, a molten metal is filled into a mold having a predetermined shape to form a product, and pipe-shaped composite materials are removed from the mold and manufactured one by one.
[0005]
[Problems to be solved by the invention]
By the way, in the manufacturing apparatus 30 of the conventional fiber reinforced composite wire mentioned above, the wire-shaped fiber reinforced composite wire which the molten metal permeate | transmitted fully to the inside by blowing a wind from the nozzle 38 and opening a fiber bundle into the inside. 34 can be manufactured continuously. However, for example, when trying to manufacture a pipe-shaped composite material using a linear material as a core material by this pressure impregnation method, the fiber material and the like have been melted in a state where the linear material such as fibers is arranged at the core material position in the mold. Since there was no appropriate means for forming metal into a pipe shape, it was particularly difficult to continuously produce a pipe-shaped composite material having the above structure.
[0006]
On the other hand, in the batch method, the pipe-shaped composite material having the above structure can be manufactured. However, since each one is manufactured using a mold, there is a problem in low productivity. Moreover, when producing pipe-shaped composite materials of various forms with different pipe diameters and length dimensions, it is necessary to prepare molds corresponding to each of them, resulting in low production efficiency and high manufacturing costs. There was a problem.
[0007]
The present invention has been made in view of the above circumstances, and can continuously and easily manufacture a pipe-shaped composite material having an arbitrary length, and further increase production efficiency and reduce manufacturing costs. It aims at providing the manufacturing method and manufacturing apparatus of a pipe-shaped composite material which can be manufactured.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a method for producing a pipe-shaped composite material according to the present invention produces a pipe-shaped composite material by passing a linear material as a core material in a molten metal furnace filled with molten metal. In the manufacturing method,
Arranging the linear material corresponding to a predetermined tubular position, and introducing the linear material into the metal furnace;
The molten metal is impregnated by intermittently supplying the molten metal into the metal furnace with respect to the linear material continuously moved in the metal furnace, and at a predetermined interval along the longitudinal direction of the linear material. A metal impregnation process that forms a core exposed portion every time,
It is characterized by comprising a molding process in which a linear material impregnated with molten metal in the metal furnace is formed into a pipe shape and drawn from the metal furnace.
[0009]
Then, when the molten metal is intermittently supplied in the metal furnace to the linear material arranged corresponding to the tubular position and pulled out from the metal furnace, the portion of the molten metal impregnated with the molten metal A pipe-shaped composite material in which the core material exposed portion not impregnated is formed at predetermined intervals along the longitudinal direction of the linear material can be continuously manufactured.
[0010]
Moreover, the manufacturing apparatus of the pipe-shaped composite material according to the present invention for achieving the above object includes a molten metal furnace filled with at least a molten metal,
A first orifice arranged on the inlet side of the metal furnace and arranged in a tubular shape through each of the linear materials introduced from the outside;
A second orifice disposed on the outlet side of the metal furnace and passing through a linear material impregnated with molten metal to form a pipe,
This is achieved by a pipe-shaped composite material manufacturing apparatus comprising a molten metal supply means for intermittently supplying a predetermined amount of molten metal to the metal furnace.
[0011]
A large number of linear materials are introduced into the molten metal furnace in a state of being disposed in a tubular shape through the first orifice. The linear material is melted by passing through the second orifice in a state where the molten metal is intermittently supplied from the molten metal supply means in the molten metal furnace, impregnated with the molten metal and not impregnated with the molten metal. Pulled out of the metal furnace. Thus, the linear material is formed into a long pipe-shaped composite material provided with a core material exposed portion at every predetermined interval.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a method and apparatus for producing a pipe-shaped composite material according to the present invention will be described in detail with reference to the drawings.
1 to 4 show an embodiment of a pipe-shaped composite material manufacturing apparatus according to the present invention, FIG. 1 is a block diagram showing the pipe-shaped composite material manufacturing apparatus, and FIG. 2 is an enlarged view of the molten metal furnace of FIG. FIG. 3 is a plan view of the first and second orifices of the molten metal furnace shown in FIG. 2, (a) shows the first orifice, (b) shows the second orifice, and FIG. 4 is a sectional view of the first and second orifices of the molten metal furnace of FIG. 2, (a) shows the first orifice, (b) shows the second orifice, and FIG. 5 shows the pipe-shaped composite material of FIG. FIGS. 6A and 6B are diagrams illustrating a manufacturing method using the manufacturing apparatus of FIG. 6A, in which FIG. 6A shows a state in which the linear material is impregnated with molten metal, FIG. 6B shows a state in which the linear material is not impregnated with molten metal, It is a principal part perspective view which shows the state before the cutting | disconnection to each individual | organism | solid of a pipe-shaped composite material, FIG. 7 is the individual | organism | solid after a pipe-shaped composite material is cut | disconnected. It is a perspective view showing.
[0013]
In FIG. 1, a pipe-shaped composite material manufacturing apparatus 10 according to the present embodiment is made of, for example, an inorganic fiber such as carbon fiber or a metal fiber such as alumina fiber in a molten metal furnace 11 filled with a molten metal 20. The long pipe-shaped composite material 22 can be manufactured by passing the core material 21 continuously at a predetermined speed of, for example, 5 to 35 m / min.
[0014]
The molten metal furnace 11 is an electric furnace. The furnace is filled with a molten metal 20 from a molten metal receiving furnace 12 described later, and pressurized gas is supplied through a passage 14 and a valve 15 provided in the upper part of the furnace. It is provided so that it can be supplied.
[0015]
A first orifice 16 is provided on the inlet side (the lower side in FIG. 1) of the molten metal furnace 11.
As shown in FIGS. 3 (a) and 4 (a), the first orifices 16 have a large number of introduction ports 16a (eight in this example) at equal intervals on the circumference corresponding to a predetermined tube shape. A large number of linear members 21 introduced into the metal furnace from the outside are arranged in a tubular shape by passing through the inlet 16a.
[0016]
A second orifice 17 is provided on the outlet side of the molten metal furnace 11 (upper side in FIG. 1).
As shown in FIGS. 3 (b) and 4 (b), the second orifice 17 has a linear shape in which the outlet 17a is opened in an annular shape corresponding to a predetermined tubular shape and the molten metal 20 is impregnated. The material 21 is formed into a pipe shape by passing through the outlet 17a.
[0017]
The inlet port 16a of the first orifice 16 and the outlet port 17a of the second orifice 17 are appropriately selected in diameter and hole diameter according to the thickness of the linear material 21 to be passed and the thickness of the pipe-shaped composite material 22 to be manufactured. The
[0018]
A molten metal receiving furnace 12, which is also an electric furnace, is connected to the molten metal furnace 11 through a passage 18 and a valve 19.
The molten metal receiving furnace 12 includes a piston 13 inside, and when the piston 13 rises with the valve 19 opened, a predetermined amount of molten metal 20 is supplied into the molten metal furnace 11 through the passage 18. A predetermined amount of molten metal 20 is returned from the molten metal furnace 11 through the passage 18 by the lowering of the piston 13 with the valve 19 opened, and can be temporarily stored. That is, the molten metal receiving furnace 12 causes the molten metal 20 to intermittently flow into or out of the molten metal furnace 11 by repeating the lifting and lowering operation of the piston 13 synchronized with the opening / closing operation of the valve 19. Can do.
The molten metal receiving furnace 12, the piston 13, the passage 18 and the valve 19 constitute the molten metal supply means in the present invention.
[0019]
Next, the operation of the pipe-shaped composite material manufacturing apparatus of the present embodiment will be described with reference to FIG.
In the pipe-shaped composite material manufacturing apparatus 10, first, a large number of linear materials 21 that run continuously and are guided from the outside into the molten metal furnace 11 are in a predetermined tubular position by the introduction port 16 a of the first orifice 16. Are introduced into the molten metal furnace 11 (wire material introduction process).
[0020]
Next, the molten metal 20 filled in the molten metal furnace 11 is impregnated into the linear material 21 moving in the molten metal furnace 11 (metal impregnation process). At this time, as shown in FIG. 5 (a), the molten metal 20 supplied in a full state in the molten metal furnace 11 moves down the piston 13 with the valve 19 opened as shown in FIG. 5 (b). Thus, after a certain amount moves to the molten metal receiving furnace 12, the piston 13 rises again, so that it is returned to the molten metal furnace 11 as shown in FIG. Thereby, the molten metal 20 is intermittently supplied to the linear material 21 in which the molten metal 20 is impregnated by moving in the metal furnace, and the portions that do not impregnate the molten metal 20 are set at predetermined intervals. It is formed every time.
[0021]
Thereafter, the linear member 21 having a portion impregnated with the molten metal 20 and a portion not impregnated with the molten metal 20 (corresponding to a core material exposed portion 23 described later) passes through the outlet 17a of the second orifice 17. In a state where the part impregnated with the molten metal 20 is formed into a pipe shape, the molten metal 20 is drawn out from the inside of the molten metal furnace 11. As a result, as shown in FIG. 6, the pipe-shaped composite material 22 is manufactured in a long shape having a core material exposed portion 23 in which the linear material 21 serving as a core material is exposed in the longitudinal direction at regular intervals (molding). process). Then, the pipe-shaped composite material 22 is cut off at the upper and lower end portions of the core material exposed portion 23, so that a single pipe-shaped composite material 22 (see FIG. 7) having a required length dimension L as a product is obtained. 7).
In addition, as a specific example of the molten metal applied in said manufacturing apparatus, an aluminum alloy, a magnesium alloy, etc. can be mentioned. Moreover, the melting temperature in a molten metal furnace is 500-700 degreeC, for example.
[0022]
As described above, according to the above-described embodiment, the molten metal furnace 11 of the manufacturing apparatus 10 includes the first orifice 16 that arranges the linear material 21 at the tubular position and the second orifice 17 that forms the pipe. Equipped. The manufacturing apparatus 10 introduces a large number of linear materials 21 into the molten metal furnace 11 through the first orifice 16 in a state where the molten metal furnace 11 is filled with the molten metal 20 and the pressurized gas. After passing through the inside, it is sent out from the molten metal furnace 11 through the second orifice 17.
[0023]
Therefore, this manufacturing apparatus 10 can manufacture the pipe-shaped composite material 22 continuously and easily by the pressure impregnation method. Moreover, by adjusting the supply of molten metal to the molten metal furnace without preparing a plurality of types of molds having different length dimensions, each pipe has a length L that is freely changed The composite material 22 can be manufactured. Also, the manufacture of pipe-shaped composite materials having different tube diameters can be handled simply by replacing the orifice without requiring a significant change in the apparatus. As a result, pipe-shaped composite materials having arbitrary length L and different pipe diameters can be manufactured continuously with high production efficiency, and no large-scale capital investment is required, thereby reducing costs. .
[0024]
Further, according to the above-described embodiment, the molten metal receiving furnace 12 causes the molten metal 20 to intermittently flow into or out of the molten metal furnace 11 by repeating the raising and lowering of the piston 13 at every required interval. Since the core material exposed portions 23 that do not impregnate the molten metal 20 in the linear material 21 are formed at predetermined intervals, each of the pipe-shaped composite materials 22 for commercialization is converted into the core material exposed portions. 23 can be cut easily and easily.
[0025]
【The invention's effect】
As described above, the present invention includes a linear material introduction process in which a large number of linear materials as core materials are arranged corresponding to predetermined tubular positions and introduced into the molten metal furnace, and the inside of the molten metal furnace. By supplying molten metal intermittently to a continuously moving linear material, the molten metal is impregnated into the linear material, and a core exposed portion that exposes the linear material is formed at predetermined intervals. This process consists of a metal impregnation process and a molding process in which a molten metal-impregnated linear material is formed into a pipe shape. A pipe-shaped composite material having an arbitrary length can be manufactured continuously and easily. In addition, by changing the formation interval of the core material exposed part, or by changing the first and second orifices to predetermined ones, various types of pipe-shaped composite materials can be easily manufactured and produced. The efficiency can be increased, and at the same time, the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a pipe-shaped composite material manufacturing apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view showing a main part of the molten metal furnace shown in FIG. 1;
3 is a plan view of first and second orifices of the molten metal furnace of FIG. 2, wherein (a) shows the first orifice and (b) shows the second orifice, respectively.
4 is a cross-sectional view of the first and second orifices of the molten metal furnace of FIG. 2, wherein (a) shows the first orifice and (b) shows the second orifice, respectively.
FIGS. 5A and 5B are diagrams for explaining a manufacturing method using the pipe-shaped composite material manufacturing apparatus of FIG. 1, in which FIG. 5A shows a state in which the linear material is impregnated with molten metal, and FIG. The state which is not impregnated with a metal is shown.
FIG. 6 is a perspective view of a main part showing a state before the pipe-shaped composite material is cut into individual pieces.
FIG. 7 is a perspective view showing an individual after cutting a pipe-shaped composite material.
FIG. 8 is a schematic cross-sectional view showing a conventional fiber reinforced composite wire manufacturing apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Manufacturing apparatus 11 of pipe-shaped composite material Molten metal furnace 12 Molten metal receiving furnace 13 Piston 16 1st orifice 16a Inlet 17 Second orifice 17a Outlet 20 Molten metal 21 Linear material 22 Pipe-shaped composite material 23 Core material exposed part L Pipe-shaped composite length

Claims (2)

In a manufacturing method for manufacturing a pipe-shaped composite material by passing a linear material as a core material in a molten metal furnace filled with molten metal,
Arranging the linear material corresponding to a predetermined tubular position, and introducing the linear material into the metal furnace;
The molten metal is impregnated by intermittently supplying the molten metal into the metal furnace with respect to the linear material continuously moved in the metal furnace, and at a predetermined interval along the longitudinal direction of the linear material. A metal impregnation process to form a core exposed portion every time,
A method of manufacturing a pipe-shaped composite material, comprising: forming a linear material impregnated with molten metal in the metal furnace into a pipe shape and drawing it from the metal furnace. A molten metal furnace filled with at least a molten metal;
A first orifice arranged on the inlet side of the metal furnace and arranged in a tubular shape through each of the linear materials introduced from the outside;
A second orifice that is disposed on the outlet side of the metal furnace and passes through a linear material impregnated with molten metal to form a pipe,
An apparatus for producing a pipe-shaped composite material, comprising: molten metal supply means for intermittently supplying a predetermined amount of molten metal to the metal furnace.

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