JP2001107219A - Multi-stage hot dipping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-stage hot dipping device which can prevent degradation of wires, suppress degradation of the production efficiency, and easily manufacture a variety of kinds of linear composite materials. SOLUTION: A multi-stage hot dipping device 1 comprises a plurality of hot dipping devices 2a, 2b and 2c. The respective hot dipping devices 2a, 2b and 2c comprise a pressure vessel 7, a dipping tank 5, an inlet seal part 14, an outlet seal part 15, a throttling part 16, and a wire feeding means 10. The dipping tank 5 is provided within the pressure vessel 7 to store the molten metals 6a, 6b and 6c. The inlet seal part 14 communicates the outside with the inside of the pressure vessel 7. The throttling part 16 is provided between the seal parts 14 and 15 to communicate the inside and the outside of the dipping tank 5 with each other. The wire feeding means 10 feeds wires 4a, 4b and 4c into the dipping tank 5 via the inlet seal part 14. The hot dipping devices 2a, 2b and 2c are disposed in series along the perpendicular direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-stage melt impregnation apparatus for producing a linear composite material comprising a linear or wire-like reinforcing fiber and a metal matrix.

[0002]

2. Description of the Related Art A linear or wire-shaped composite material (hereinafter collectively referred to as a "linear composite material") is a fibrous material, a linear material, a fibrous material bundle, or a linear material bundle. In addition, the shape can maximize the function of the core material such as a "linear material").
It is used in a wide range of applications from building materials to aerospace.

[0003] These linear composite materials use, as a core material, a material of a fibrous bundle such as an organic fiber or an inorganic fiber, or a material of a linear bundle such as a metal wire bundle, and a resin or a metal as a matrix. It is formed by adding a flame retardant improving material, an abrasion resistance improving material, or a pigment or other filler as necessary.

The above-described linear composite material is formed, for example, by an extruder 100 shown in FIG. The extruder 100 illustrated in FIG. 5 is used for covering an electric wire, which is a kind of a composite material. FIG. 5A is a side view, and FIG.
(B) is a front view.

The extruder 100 illustrated in FIG. 5 includes an apparatus main body 101, a hopper 102, a stirring section 103, a heating section 104, and a die 105. Device body 1
01 is installed on a floor such as a factory. Hopper 1
In reference numeral 02, a matrix material (usually a resin) is supplied from above the apparatus main body 101, and the matrix material is supplied to the stirring unit 103.

[0006] The stirring section 103 includes a motor 106 and a screw 107. The motor 106 is connected to the apparatus body 10
It is attached to 1. The screw 107 is attached to the device body 10
It is attached to 1. Screw 107 is a motor 106
Is driven to rotate. The stirring unit 103 includes the hopper 10
The matrix material supplied from the
06 agitates by driving the screw 107 to rotate, and supplies it to the inner periphery of a hole 108 of the die 105 which will be described later.

The heating unit 104 heats and melts the matrix material which is stirred by the stirring unit 103 and supplied to the inner periphery of the hole 108 of the die 105. The die 105 has a hole 108 through which a linear material 109 can pass. The matrix material which is stirred by the stirring unit 103 and melted by the heating unit 104 is supplied to the inner periphery of the hole 108 of the die 105.

As shown in FIG. 5B, the extruder 100 continuously introduces the linear material 109 into the hole 108 of the die 105 and is supplied through the hopper 102 and the stirring unit 103. A matrix material is coated on the surface of the linear material 109 in the hole 108 to form a linear composite material 110.
Take out continuously. At this time, the amount of the matrix material is regulated to a necessary amount by the die 105.

On the other hand, in the case of a composite material using carbon fiber (long fiber), polyimide long fiber or the like as a core material, a dip method as schematically shown in FIG. 6 is known. In the dipping method, an impregnation tank 121 for containing a molten matrix material and a pulley 122 rotatably provided in the impregnation tank 121 are used.

[0010] Then, the wire material 109 is wrapped around the pulley 122, the wire material 109 is continuously immersed in the matrix material accommodated in the impregnation tank 121, and the direction is changed using the pulley 122 to form a composite material. This is a method in which the material 110 is pulled up.

[0011]

When the extruder 100 illustrated in FIG. 5 and the dip method illustrated in FIG. 6 are used, when the linear composite material 110 is formed relatively thick,
In order to ensure that the wire material 109 is impregnated with the matrix material, the wire material 109 is passed through the hole 108 of the die 105 for a relatively long time or is immersed in the matrix material in the impregnation tank 121. The need had arisen. For this reason, when a material whose strength is reduced by contact with the matrix is used as the linear material 109, the linear material 109 may be deteriorated by the contact of the molten matrix material.

As described above, in order to manufacture a relatively thick linear composite material 110, the linear material 109 is passed through the hole 108 of the die 105 for a relatively long time, Since it is necessary to be immersed in the composite material 121, the operation time required for manufacturing the linear composite material 110 is prolonged, and the production efficiency of the linear composite material 110 tends to decrease.

Further, when the extruder 100 and the dip method are used, when forming the linear composite material 110, only one kind of matrix material can be used. It has been difficult to apply it to a variety of specifications, such as the inability to form a linear composite material 110 that has increased rigidity and is less likely to bend, and a linear composite material 110 that has lower rigidity and is intentionally easily bent.

Accordingly, an object of the present invention is to prevent the linear material from deteriorating and to suppress a decrease in production efficiency.
An object of the present invention is to provide a multi-stage melt impregnating apparatus capable of easily producing various linear composite materials.

[0015]

In order to solve the above-mentioned problems and to achieve the object, a multi-stage melt impregnating apparatus of the present invention contains a pressure vessel and a metal provided in the pressure vessel and melted therein. Impregnation tank, an inlet seal provided at the bottom of the impregnation tank and communicating the outside with the inside of the impregnation tank, and an outlet seal provided at the top of the pressure vessel and communicating the inside of the pressure vessel and the outside with each other And a throttle portion provided between these seal portions and communicating the inside and outside of the impregnation tank with each other, and pressurized gas supply means for supplying gas pressurized into the pressure vessel, The linear material is supplied into the impregnation tank through the inlet seal portion to impregnate the molten metal, and the metal-impregnated linear material is taken out through the squeezing portion and the outlet seal portion. A solution that can form a material A plurality of impregnating devices are provided, and the linear composite material taken out through the outlet seal portion of the melt impregnating device located on the lower side is passed through the inlet seal portion of the melt impregnating device located on the upper side of the melt impregnating device, into the impregnation tank. The melt impregnating devices are arranged in series with each other along the vertical direction so that they can be supplied.

According to the multi-stage melting and impregnating apparatus of the present invention, the molten metal contained in the impregnation tank is impregnated with the linear material from the bottom to the top through the impregnation tank to thereby impregnate the linear metal. A plurality of melt impregnation devices forming a composite material are provided, and these melt impregnation devices are arranged in series with each other along the vertical direction.

For this reason, when forming a linear composite material,
After passing the linear material through the lower melt impregnation device, the linear material is passed through the upper melt impregnation device. When passing the linear material through the melt impregnating device located above, a new linear material was passed through the impregnation tank of the melt impregnating device located below from the linear material supply means of the melt impregnating device. It may or may not be supplied to the outer periphery of the linear material.

As described above, the linear composite material is gradually thickened by using a plurality of melt impregnating apparatuses. Further, the outer periphery of the linear composite material formed through the impregnation tank of the lower melt impregnation apparatus is formed so as to cover the metal or the like melted using the upper melt impregnation apparatus. For this reason, a linear composite material having a plurality of layers arranged coaxially with each other and stacked on each other along the radial direction can be formed.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a multi-stage melt impregnation apparatus 1 according to an embodiment of the present invention will be described with reference to FIGS. The multi-stage melt impregnation device 1 includes a plurality of melt impregnation devices 2 as shown in FIG. These melt impregnation devices 2 are arranged in series with each other along the vertical direction. In the illustrated example, three melt impregnation devices 2 are provided. Hereinafter, the three melt impregnation devices 2 shown in FIG. 1 are referred to as a first melt impregnation device 2a, a second melt impregnation device 2b, and a third melt impregnation device 2c from below.

In the multi-stage melt impregnating apparatus 1, the linear material 4a is melted from the lower part of the first melt impregnating apparatus 2a in the impregnation tank 5 described later of the first melt impregnating apparatus 2a. Dipped in metal 6a to form a linear composite material 3a,
Further, a linear material 4b is added to the linear composite material 3a to form a second material.
From below the molten impregnating device 2b, is immersed in the molten metal 6b accommodated in the impregnation tank 5 of the second molten impregnating device 2b to form the linear composite material 3b. The linear material 4c is added to the molten metal 6c contained in the impregnation tank 5 of the third melt impregnation device 2c from below the third melt impregnation device 2c. Is an apparatus for forming

The multi-stage melt impregnating device 1 comprises the melt impregnating devices 2a, 2b, 2c,
The linear composite materials 3a, 3b taken out through an outlet seal portion 15 described later of FIGS.
The melt impregnating devices 2b and 2c located above the a and 2b are arranged in series with each other along the vertical direction so that they can be supplied into the impregnation tank 5 through an inlet seal portion 14 described later.

That is, the multi-stage melt impregnation apparatus 1 converts the linear composite material 3a taken out through the outlet seal section 15 of the first melt impregnation apparatus 2a through the inlet seal section 14 of the second melt impregnation apparatus 2b. The first melt impregnating device 2a and the second melt impregnating device 2b are arranged so that they can be supplied into the impregnation tank 5 of the melt impregnating device 2b.

Further, the multi-stage melt impregnating apparatus 1 converts the linear composite material 3a taken out through the second outlet seal section 15 of the second melt impregnating apparatus 2b through the inlet seal section 14 of the third melt impregnating apparatus 2c. The second melt impregnating device 2b and the third melt impregnating device 2c are arranged so that they can be supplied into the impregnation tank 5 of the third melt impregnating device 2c.

Since the melt impregnation devices 2a, 2b and 2c have substantially the same configuration, the configuration of the first melt impregnation device 2a will be described below. As shown in FIG. 2, the first melt impregnation device 2a
, An impregnation tank 5, an electric furnace 8 as a heating means, a pressurized gas supply means 9, and a linear material supply means 10.

The pressure vessel 7 has a space inside.
The impregnation tank 5 is provided inside the pressure vessel 7.
The impregnation tank 5 has a space inside. The impregnation tank 5 is provided with a metal 6a as a material for the matrix melted therein.
(6b, 6c).

Metal 6 as the matrix material
As a, 6b, and 6c, any material that can be melted when heated and solidified by cooling can be appropriately selected and used. For example, metals such as copper, aluminum, iron, tin, silver and magnesium, or alloys containing two or more of these metals are heated to a temperature required for melting. The impregnation tank 5 may be provided with a means such as stirring or circulating the molten metal 6a, 6b, 6c as required, so that the composition thereof can be kept uniform.

The electric furnace 8 heats the metal 6a (6b, 6c) accommodated in the impregnation tank 5, and
(6b, 6c) is always kept at a temperature equal to or higher than the melting point. The pressurized gas supply means 9 includes a gas pipe 11, a pressurized valve 12, and the like. The gas pipe 11 is connected to a pressurized gas supply source (not shown) and opens into the pressure vessel 7.

The gas pipe 11 supplies the gas supplied from the pressurized gas supply source into the pressure vessel 7. The pressurizing valve 12 can switch between supplying the gas into the pressure vessel 7 through the gas pipe 11 and stopping the supply of the gas.

The pressurized gas supply source can continuously supply pressurized gas into the pressure vessel 7. As the pressurized gas supply source, for example, a large-capacity cylinder or a compression pump is used. Further, as the pressurized gas supplied from the pressurized gas supply source, for example, nitrogen gas, argon gas, helium gas, air, or the like is used.

The metal 6 as a matrix material
Since a, 6b, and 6c are molten in the impregnation tank 5,
When there is a possibility that inconvenience may occur due to reaction with oxygen or the like in the air, the pressurized gas supplied by the pressurized gas supply source may be a rare gas such as an argon gas, or a molten metal 6a such as nitrogen. It is desirable to use a so-called inert gas which does not react with 6b and 6c.

The linear material supply means 10 includes a pulley 13 and the like rotatably provided at the bottom of the pressure vessel 7. Each of the pulleys 13 has a plurality of fibers 19a, 19a.
b, 19c (shown in FIG. 3 and the like) are wound around the linear members 4a, 4b, 4c. The pulley 13 changes the direction of the linear members 4a, 4b, and 4c, and
Lead to 4.

The linear material supply means 10 guides the linear materials 4 a, 4 b, 4 c by the pulley 13, and
4 and can be continuously supplied into the impregnation tank 5. Further, the second and third melt impregnation devices 2b, 2
In (c), the linear supply means 10 can supply the linear members 4b and 4c to the outer periphery of the linear composite materials 3a and 3b.

The above-mentioned linear members 4a, 4b, 4c
Constitutes a core material (reinforcing material) of the linear composite materials 3a, 3b, 3c, and the fibers 19a, 19b, 19c constituting the linear materials 4a, 4b, 4c include graphite fiber, carbon fiber, and carbonized fiber. Inorganic fibers (ceramic fibers) such as silicon fibers, silica fibers, boron fibers and alumina fibers, synthetic fibers such as polyimide, nylon, and polyester, and, if necessary, chemical fibers such as rayon and cotton yarn, natural fibers, and stainless steel. Metal fibers such as copper and steel can be used.

The fibers 19a, 19b, 19c constituting the linear members 4a, 4b, 4c are formed by the metal members 6a, 6b,
It is necessary to select a material that does not cause changes such as decomposition, melting, and deterioration at the melting temperature of 6c.

Further, the fibers 19a, 19b, and 19c constituting the linear members 4a, 4b, and 4c are made of not only materials having mechanical improvement effects such as tensile strength, bending strength, bending characteristics, and wear resistance. It does not point to electrical characteristics,
It is desirable to select one that improves various characteristics such as electromagnetic characteristics and thermal characteristics (such as thermal conductivity) according to the intended use.

The melt impregnating device 2a comprises an inlet seal 14 provided at the bottom of the impregnation tank 5, an outlet seal 15 provided at the top of the pressure vessel 7,
And a throttle section 16 provided between the first and second shutters 4 and 15.

The inlet seal portion 14 is formed to penetrate the pressure vessel 7, and is formed in an orifice shape which communicates the outside and the inside of the impregnation tank 5 through the pressure vessel 7.

The inner diameter of the inlet seal portion 14 is substantially the same as or slightly larger than the outer diameter of the linear material 4a supplied from the linear supply means 10 in the first melt impregnation device 2a. In addition, the inner diameter of the inlet seal portion 14 is
In the second and third melt impregnation devices 2b, 2c, the linear members 4b, 4b,
4c is formed to be substantially equal to or slightly thicker than the outer diameter of the combined 4c.

The outlet seal portion 15 is formed in an orifice shape penetrating the pressure vessel 7 and communicating the outside and the inside of the pressure vessel 7 with each other. The outlet seal portion 15 is provided with a linear composite material 3a, 3b,
3c passes inside. The inner diameter of the outlet seal portion 15 is
The outer diameter of the linear composite material 3a, 3b, 3c is substantially equal to or slightly thicker.

The squeezing section 16 is provided above the impregnation tank 5 and communicates the inside and outside of the impregnation tank 5 with each other. The throttle unit 16 is disposed at a position substantially equal to the level of the liquid level of the molten metals 6a, 6b, 6c stored in the impregnation tank 5. A die having a relatively long structure is used as the throttle unit 16.

The linear members 4a, 4b, 4c and the linear composite materials 3a, 3b are passed through the inlet seal portion 14 of the narrowed portion 16 inside. Metal 6a, 6 of the impregnation tank 5
linear composite material 3a, 3 formed by impregnation with b, 6c
The thicknesses of b and 3c are regulated by the constricted portion 16 and, at the same time, the impregnating tank 5 is provided in the pressure vessel 7 pressurized by the pressurized gas supply means 9, so that the inner diameter is reduced. The generation of voids is prevented.

Also, the inlet seal portion 14 and the throttle portion 16
The outlet seal portion 15 and the outlet seal portion 15 are located on the same line. That is, the provision of the squeezed portion 16 and the like at such a position causes the deviation of the fibers 19a, 19b, 19c constituting the linear materials 4a, 4b, 4c as the core material in the linear composite material 3c of the product. Even if the linear members 4a, 4b, and 4c are delicate materials such as a bundle of fibrous materials, the linear composite material 3 has ideal performance without damaging them.
c can be formed.

The inlet seal portion 14 and the outlet seal portion 1
A commonly used sealing method such as a so-called orifice seal or a so-called labyrinth seal can be applied to the wire member 5.
A sealing method that bends a, 4b, and 4c is undesirable, and usually uses an orifice seal.

The inlet seal portion 14 is provided at the bottom of the impregnation tank 5, but during actual operation, the inlet seal portion 1 is provided.
4, the linear materials 4a, 4b, 4c and the linear composite material 3
Since a and 3b are continuously supplied at an appropriate speed, the leakage of the metal 6a, 6b and 6c contained in the impregnation tank 5 from the inlet seal portion 14 is prevented even in the orifice shape as described above. it can.

On the other hand, since the outlet seal portion 15 is a small-diameter orifice seal, leakage of the gas inside the impregnation tank 5 and the pressure vessel 7 from this portion is small, and the gas is supplied from the pressurized gas supply means 9. The internal pressure is kept constant because the amount of gas to be generated is sufficiently large.

When the linear composite material 3c is formed by using the multi-stage melt impregnating apparatus 1 having the above-described configuration, first, the linear material 4a is supplied to the linear material supply means 10 of the first melt impregnating apparatus 2a. The direction is turned upward by the pulley 13 and the inlet seal portion 14 is changed.
From the molten metal 6a in the impregnation tank 5 of the first molten impregnating apparatus 2a, and after controlling it to have an appropriate matrix content and a desired thickness by the narrowing section 16, the outlet seal section 15 It is further continuously taken out of the first melt impregnation device 2a.

Then, the linear composite material 3a as the first layer shown in FIGS. 3 and 4 is formed. This linear composite material 3a includes fibers 19a constituting the linear material 4a and a matrix 17a formed by solidifying the metal 6a.

Outlet seal portion 5 of first melt impregnation device 2a
The linear composite material 3a continuously taken out to the outside
Is continuously introduced into the molten metal 6b in the impregnation tank 5 from the inlet seal portion 14 of the second molten impregnation device 2b. After controlling the proper matrix content and the desired thickness by the expansion unit 16, it is continuously taken out from the outlet seal unit 5 to the outside of the second melt impregnation device 2 b. At this time, the second
From the linear material supply means 10 of the melt impregnation device 2b
b may or may not be supplied to the outer periphery of the linear composite material 3a.

Then, a linear composite material 3b having a second layer 18b formed on the outer periphery of the linear composite material 3a shown in FIGS. 3 and 4 is formed. The second layer 18b is disposed coaxially with the linear composite material 3a as the first layer.

The second layer 18b shown in FIG. 3 shows a case where the linear material 4b is supplied from the linear material supply means 10. The second layer 18b shown in FIG.
b, and a matrix 17b formed by solidifying the metal 6b.

The second layer 18b shown in FIG. 4 shows a case where the linear material 4b is not supplied from the linear material supply means 10. The second layer 18b shown in FIG. 4 includes a matrix 17b formed by solidifying the metal 6b.

Outlet seal portion 5 of second melt impregnation device 2b
The linear composite material 3b continuously taken out to the outside
Is continuously introduced into the molten metal 6c in the impregnation tank 5 from the inlet seal portion 14 of the third molten impregnation device 2c. After controlling the proper matrix content and the desired thickness in the narrowing section 16, the linear composite material 3c is obtained by continuously taking out from the outlet seal section 5 to the outside of the third melt impregnating apparatus 2c. . At this time, the linear material 4c may or may not be supplied to the outer periphery of the linear composite material 3b from the linear material supply means 10 of the third melt impregnation device 2c.

Then, a linear composite material 3c having a third layer 18c formed on the outer periphery of the linear composite material 3b shown in FIGS. 3 and 4 is formed. The third layer 18c is arranged coaxially with the linear composite material 3a as the first layer and the second layer 18b.

The third layer 18c shown in FIG. 3 shows a case where the linear material 4c is supplied from the linear material supply means 10. The third layer 18c shown in FIG.
and a matrix 17c formed by solidifying the metal 6c.

The third layer 18c shown in FIG. 4 shows a case where the linear material 4c is not supplied from the linear material supply means 10. The third layer 18c shown in FIG. 4 includes a matrix 17c formed by solidifying the metal 6c.

As shown in FIGS. 3 and 4, the linear composite material 3c obtained by the above-described multi-stage melt impregnation apparatus 1
It includes a linear composite material 3a as a first layer, a second layer 18b, and a third layer 18c coaxially arranged. And the linear composite material 3 as these first layers
a, the second layer 18b and the third layer 18c are arranged in order from the inside of the linear composite material 3c.
Are stacked on each other along the radial direction.

According to the multi-stage melting and impregnating apparatus 1 of the present embodiment, the molten metals 6a, 6
b, 6c are impregnated with the linear materials 4a, 4b, 4c from the bottom toward the top, thereby impregnating the melt impregnating devices 2a, 2b, 2c to form the linear composite materials 3a, 3b, 3c.
2c are arranged in series with each other along the vertical direction.

When the linear composite material 3c is formed, the linear materials 4a, 4b, 4c are sequentially transferred from the lower melt impregnation devices 2a, 2b to the upper melt impregnation devices 2b, 2c.
Form through such as.

As described above, the plurality of melt impregnation devices 2a, 2
By using b and 2c, the linear composite materials 3a, 3b and 3c are formed gradually thicker. Therefore, even when the relatively thick linear composite material 3c is formed, the linear members 4a, 4b, 4
The time during which c is immersed in the metals 6a, 6b, 6c in the impregnation tank 5 can be suppressed.

Therefore, the fibers 6a, 6b, and 6c of the fibers 19a, 19b, and 19c constituting the linear members 4a, 4b, and 4c,
In addition to suppressing the deterioration of the linear composite material 3c due to heat, the work time required to produce the linear composite material 3c can be suppressed, and a decrease in the production efficiency of the linear composite material 3c can be suppressed. In addition, since the deterioration of the linear members 4a, 4b, and 4c and the decrease in production efficiency can be suppressed, it is possible to easily form the relatively thick linear composite material 3c.

Further, the melt impregnating device 2a,
The outer peripheries of the linear composite materials 3a, 3b formed through 2b are formed so as to cover the molten metals 6b, 6c, etc. using the melt impregnation devices 2b, 2c located above. At this time, it is not necessary to supply new linear members 4b and 4c. For this reason, a plurality of layers 3a, 18b, 18 that are arranged coaxially with each other and stacked along the radial direction.
The linear composite material 3c having c can be formed.

Therefore, the linear material supply means 10 supplies the linear materials 4a, 4b, 4c of different materials to each of the melt impregnation devices 2a, 2b, 2c, or the metal 6a, 6b, 6c are melt impregnated devices 2a, 2b,
By making it different every 2c, a linear composite material 3c with various specifications can be manufactured.

For example, the third outermost layer of the linear composite material 3c
By using the metal 6c and the linear member 4c, which are materials having relatively high rigidity, in the melt impregnating apparatus 2c for forming the layer 18c, the linear composite material 3c that is relatively hard to bend can be formed. The melt impregnating device 2c for forming the third layer 18c is made of a metal 6c of a material having a relatively low rigidity.
By using the linear material 4c, the linear composite material 3c that is relatively easily bent and has high elasticity can be formed.

Further, the melt impregnating device 2c for forming the third layer 18c produces a linear composite material 3c which is hardly corroded by using, for example, aluminum or the like which relatively easily forms a passivation as the metal 6c. be able to.

By not supplying the linear material 4c from the linear material supply means 10 of the melt impregnating apparatus 2c for forming the third layer 18c, the linear composite material 3c in which the linear material 4c is not exposed to the outside is manufactured. And the third layer 18c
By supplying the linear material 4c from the linear material supply means 10 of the melt impregnation device 2c that forms the linear composite material 3c including the linear material 4c also in the third layer 18c as the outermost layer. Can be formed.

As described above, the plurality of melt impregnation devices 2a, 2
By using b, 2c to produce a linear composite material 3c having a plurality of layers 3a, 18b, 18c arranged coaxially with one another and stacked radially, it is possible to produce linear composite materials of various specifications. The composite material 3c can be easily manufactured.

The respective melt impregnation devices 2a, 2
In b and 2c, a throttle portion 16 is provided between the inlet seal portion 14 and the outlet seal portion 15. The throttle unit 16 is provided at a position lower than the ceiling of the impregnation tank 5. The thickness of the linear composite materials 3a, 3b, 3c to be formed is regulated by the constricted portion 16 and, at the same time, the inside of the pressure vessel 7 is pressurized by the pressurized gas supply means 9, so that Voids are prevented from being generated inside the linear composite materials 3a, 3b, 3c.

Further, at the same time, the linear members 4a, 4b, 4c
And complete contact with the metals 6a, 6b, 6c to complete the impregnation, and increase the production speed (speed of the linear materials 4a, 4b, 4c supplied to the impregnation tank 5) at that time. And increase productivity.

The inlet seal portion 14 and the throttle portion 16
And the outlet seal portion 15 are arranged on the same line. Therefore, the formed linear composite materials 3a, 3b, 3
c, the fibers 19 constituting the linear members 4a, 4b, 4c
a, 19b and 19c are prevented from being biased, and
Even if a, 4b, and 4c are delicate materials such as fiber bundles, the linear composite material 3 having ideal performance without damaging them.
a, 3b and 3c can be formed.

Therefore, when the multi-stage melt impregnation apparatus 1 of the present embodiment is used, the excellent linear composite material 3 having the optimum content of the metals 6a, 6b and 6c and having no defects such as voids.
c can be obtained.

Further, in the above-described embodiment, the multi-stage melt impregnation apparatus 1 provided with three melt impregnation apparatuses 2a, 2b, 2c
However, according to the specification of the linear composite material 3c to be manufactured without sticking to three, the melt impregnation devices 2a, 2a,
Of course, if the number of 2b and 2c is plural, it may be increased or decreased as appropriate.

According to the present invention, the linear members 4a, 4a
Since the metals 6a, 6b, and 6c can reliably penetrate into the spaces between the fibers 19a, 19b, and 19c constituting the b and 4c,
Fibers 19 constituting the aforementioned linear members 4a, 4b, 4c
Those obtained by twisting or knitting a, 19b, and 19c with each other to form a twisted string or a braid can also be used.

In the linear composite material 3c obtained by using the multi-stage melt impregnating apparatus 1 shown in the above-described embodiment, as described above, the metal 6a,
When the fibers 19a, 19b, 19c constituting the linear members 4a, 4b, 4c using 6b, 6c are particularly high-strength fibers such as ceramic fibers or carbon fibers, they are used as center lines of stranded conductors for electric wires. If this is the case, the electric wire can be made strong and lightweight.

[0074]

As described above, according to the present invention, when a linear composite material is formed, the linear material is passed through the melt impregnating device located below, and then linearly passed through the upper melt impregnation device. Form through the material. When the wire is passed through the upper melt impregnation device, a new wire can be supplied from the wire material supply means to the outer periphery of the wire passed through the lower melt impregnation device. .

As described above, the linear composite material is gradually thickened by using a plurality of melt impregnation devices. For this reason, the time during which the linear material is exposed to the molten metal is suppressed, and deterioration of the linear material due to heat can be suppressed. In addition, since the linear composite material is formed gradually thicker using a plurality of melt impregnation devices, the linear material is immersed in the metal in the impregnation tank even when forming a relatively thick linear composite material. It is possible to suppress the time required for the operation.

Therefore, the working time required for producing the linear composite material can be suppressed, and the production efficiency of the linear composite material can be prevented from lowering. Further, since the deterioration of the linear material and the decrease in the production efficiency can be suppressed, a relatively thick linear composite material can be easily formed.

Further, the outer periphery of the linear composite material formed through the lower melt impregnating device is formed so as to cover the metal or the like melted by using the upper melt impregnating device. At this time, it is not necessary to supply a new linear material. Therefore, it is possible to form a linear composite material having a plurality of layers stacked in a radial direction coaxial with each other.

Accordingly, the linear material supply means can supply linear materials of different materials to each melt impregnating apparatus, and can make the metal contained in the impregnation tank different for each melt impregnating apparatus.

For example, the melt impregnating device for forming the outermost layer of the linear composite material may use a metal and a linear material having relatively high rigidity to form a linear composite material that is relatively hard to bend. it can. Further, by using a metal and a linear material of a material having relatively low rigidity in the melt impregnating device for forming the outermost layer, it is possible to form a linear composite material which is relatively easily bent and has high elasticity.

Further, a linear composite material having excellent corrosion resistance can be formed by using a metal such as aluminum, which is relatively easy to form a passivation, in the melt impregnating apparatus for forming the outermost layer. By not supplying the linear material from the linear material supply means of the melt impregnation apparatus for forming the outermost layer, a linear composite material in which the linear material is not exposed to the outside can be formed, and the outermost layer can be formed. By supplying the linear material from the linear material supply means of the melting and impregnating apparatus, a linear composite material including the linear material in the outer layer can be formed.

As described above, by using a plurality of melt impregnating apparatuses to form a linear composite material having a plurality of layers laminated in a radial direction coaxial with each other, a linear composite material having various specifications can be formed. A composite material can be easily formed.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of a multi-stage melt impregnation apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a configuration of a melt impregnation device of the multi-stage melt impregnation device of the embodiment.

FIG. 3 is a schematic diagram showing a linear composite material obtained by the multi-stage melt impregnation apparatus of the embodiment.

FIG. 4 is a schematic view showing a linear composite material obtained by the multi-stage melt impregnation apparatus of the embodiment.

FIG. 5A is a side view of an extruder used for a conventional electric wire manufacturing and the like. (B) is a front view of the extruder shown in FIG. 5 (A).

FIG. 6 is an explanatory view showing a conventional method for producing a composite material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Multi-stage impregnation apparatus 2a 1st impregnation apparatus 2b 2nd impregnation apparatus 2c 3rd impregnation apparatus 3a Linear composite material 3b Linear composite material 3c Linear composite material 4a Linear material 4b Linear material 4c Wire material 5 Impregnation tank 6a Molten metal 6b Molten metal 6c Molten metal 7 Pressure vessel 9 Pressurized gas supply means 10 Wire material supply means 14 Inlet seal part 15 Outlet seal part 16 Restricted part

Claims (1)

[Claims] 1. A pressure vessel, an impregnation tank provided in the pressure vessel and containing molten metal therein, and an inlet seal provided at the bottom of the impregnation tank and communicating the outside with the inside of the impregnation tank. Part, an outlet seal part provided above the pressure vessel and communicating the inside and the outside of the pressure vessel with each other, and a throttle part provided between these seal parts and communicating the inside and the outside of the impregnation tank with each other And a pressurized gas supply means for supplying a pressurized gas into the pressure vessel, and a linear material is supplied into the impregnation tank through the inlet seal portion 14 to impregnate the molten metal. The melt impregnating device capable of forming a linear composite material by taking out the linear material impregnated with the metal through the squeezing portion and the outlet seal portion is provided. Through the outlet seal The melt-impregnated devices were arranged in series with each other along the vertical direction so that the linear composite material extracted and taken out could be supplied into the impregnation tank through the inlet seal portion of the melt-impregnating device located above the melt-impregnating device. A multi-stage melt impregnation apparatus characterized by the above-mentioned.