JP2844440B2 - Method and apparatus for producing composite material of inorganic particle layer and metal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for producing a composite material of an inorganic particle layer and a metal and an apparatus for producing the same.

[0002]

2. Description of the Related Art Conventionally, a composite material of an inorganic particle layer and a metal is impregnated with a molten metal under pressure into a hollow inorganic particle layer containing porous glass particles, porous ceramic particles, or volcanic glassy deposits. It is manufactured by. For example, Japanese Patent Application No. 6-320927 discloses a method of manufacturing a composite material of an inorganic substance and a metal having a surface of a free design pattern, while applying a predetermined pressure to the surface of a molten metal and applying a pressure to the inside of a cavity of a molding die. The molten metal is impregnated in the intergranular spaces of the hollow spherical particles filled in the metal. Further, in the method for producing a composite material of an inorganic substance and a metal disclosed in Japanese Patent Application No. 7-116155, hollow particles are continuously supplied from a hopper into a graphite sleeve, and the liquidus lower limit temperature of a metal such as aluminum is reduced. The molten metal of aluminum or the like is supplied and penetrated into the intergranular space of the hollow spherical particles in the graphite sleeve heated and kept warm.

[0003]

However, due to the solidification property of the molten metal, the molten metal does not easily penetrate into the fine gaps between the inorganic particles. In addition, since inorganic particles are generally lighter than molten metal, they are difficult to be uniformly dispersed in the molten metal.

[0004] The present invention provides a composite material of an inorganic particle layer and a metal, which can easily penetrate the molten metal into fine gaps between the inorganic particles and evenly disperse the inorganic particles in the molten metal, and a production method thereof. It is to provide a manufacturing apparatus.

[0005]

To achieve the above object, according to the Invention The method of producing a composite material of inorganic particle layer and the metal of claim 1, the Rutotomoni bottom is opened upward is provided in the mold
A step of injecting the molten metal into the cavity with the steps of placing the inorganic particle layer on the implanted molten metal, Ltd.
The cylindrical member that defines the shape of the composite material to be
One end of the cylindrical member is placed in the inorganic particle layer described above.
Press toward the bottom of the cavity so that
With pressure, while applying a negative pressure to the surface of the cylindrical inorganic particle layer placed above the inner member and the cavity
Characterized in that it comprises the step of indicia pressurizing the pressing force toward the bottom of the tee.

The method for producing a composite material of an inorganic particle layer and a metal according to a second aspect is the method for producing a composite material of an inorganic particle layer and a metal according to the first aspect.
While applying a negative pressure to the surface,
The step of applying a pressing force allows air to pass through.
And a material that can prevent the molten metal from passing through
It is characterized in that it is performed through a formed plate-shaped member .

According to a third aspect of the present invention, there is provided a method of manufacturing a composite material of an inorganic particle layer and a metal, wherein the tubular member comprises
The edge of the plate-shaped member is surrounded by the edge of the plate-shaped member.
It is characterized by being attached .

[0008] To achieve the foregoing objects, apparatus for producing inorganic particle layer and the metal of the composite material according to claim 4, a mold having a cavity with a Rutotomoni bottom upwards is opened,
A material that is placed on the material layer composed of the molten metal injected into the cavity and the inorganic particle layer placed thereon, and that allows air to pass therethrough and that can prevent the molten metal from passing therethrough. a plate-like member made of, attached to the edge of the plate-like member so as to surround the edge of the plate-shaped member, in cooperation with the bottom surface and the plate-like member of said cavity, to be manufactured composite A cylindrical member that defines the shape of the material , and a combination of the cylindrical member and the plate member
The inorganic particles in which one end of the cylindrical member is described above
A pressing means for pressing against the bottom surface of the cavity as pressed into a layer, you to the other end of the tubular member
And negative pressure applying means for applying a negative pressure to the surface of the plate-shaped member .

According to a fifth aspect of the present invention, there is provided an apparatus for producing a composite material of an inorganic particle layer and a metal, wherein the plate-like member is made of a breathable graphite;
It is characterized by being made of one material selected from the group of breathable foamed metal, breathable sintered metal and breathable ceramics.

According to a sixth aspect of the present invention, there is provided an apparatus for manufacturing a composite material of an inorganic particle layer and a metal according to the fourth or fifth aspect, wherein the tubular member is made of an isolite or alumina-based refractory material. It is characterized by being made of one material selected from the group consisting of an object, a permanent coated iron, a graphite plate, and a ceramic plate.

A composite material of the inorganic particle layer and the metal according to claim 1.
According to the manufacturing method, the shape of the composite material to be manufactured is
One end of the cylindrical member defines an inorganic particle.
The bottom of the mold cavity so that it is pushed out of the layer
, So that it flows into the fluid inorganic particle layer
The cylindrical member enters and forms a space inside the cylindrical member
Further, simultaneously with the pressing of the cylindrical member, the inside of the cylindrical member is
Side while applying a negative pressure to the surface of the inorganic particle layer.
Since a pressing force is applied toward the bottom of the
Fluid minerals in a limited area inside the material
Negative pressure can be applied evenly to minute gaps between particles.
As a result, the molten metal penetrates evenly into the inorganic particles.
In addition to homogenizing the fluid inorganic particles in the molten metal
Can be dispersed. The inorganic particle layer according to claim 4,
According to the manufacturing equipment for metal composite materials,
The cylindrical member that defines the shape of the composite material and the air
A material that allows air flow and prohibits the passage of molten metal
The combination with the plate-shaped member made of
Cavity so that the edge is pushed into the inorganic particle layer
Pressing toward the bottom of
One end of the tubular member is pushed into the inside of the tubular member
Forming a space, and further forming a cylindrical member through a plate-shaped member.
Applying negative pressure to the surface of the inorganic particle layer inside the
Since a pressing force is applied toward the bottom of the cavity,
Fluidity in a limited area inside the
Applying negative pressure evenly to minute gaps between material particles
As a result, the molten metal is evenly immersed in the inorganic particles.
And also allows the flow of inorganic particles into the molten metal
It can be evenly distributed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to preferred embodiments shown in the drawings.

FIG. 1 is an explanatory view showing a first step of the embodiment of the present invention. The mold 1 has a cavity 2 which is open at the top. The cavity 2 has a horizontal cross section that increases upward, and the side wall 3 of the mold 1 that defines the cavity 2 is inclined. The bottom surface defining the cavity 2 of the mold 1 is substantially horizontal. The depth of the cavity 2 is 25 mm. The mold 1 is provided with a drain hole 5 for discharging an excess of the molten metal 4 poured into the cavity 2 at a height of 15 mm in depth.

FIG. 2 is an explanatory diagram showing a second step of the embodiment of the present invention. A molten metal 4 is injected into the cavity 2 at a depth of 15 mm.

An inorganic particle layer 6 having a depth of 10 mm is placed on the injected molten metal 4. The surface of the placed inorganic particle layer 6 is made uniform by the scraping plate 10.

Here, the depth of the inorganic particle layer 6 is made slightly larger than the thickness of the composite member to be manufactured. The depth of the molten metal 4 is set to be at least one third of the depth of the inorganic particle layer 6. In the inorganic particle layer 6, the shape of each particle is substantially spherical, and the diameter of each particle is dispersed around a standard value. In this case, the volume of the gap between the particles is empirically one third of the volume of the particle layer. Therefore, the depth of the molten metal 4 required to fill the gap between the inorganic particle layers 6 is one third of the depth of the inorganic particle layer 5.

On the other hand, a plate-like member 7 made of a material that allows air to pass therethrough and prohibits the above-mentioned molten metal from passing, and is defined in the shape of the composite member to be manufactured is prepared. I do. The thickness of the plate member 7 is 10 mm, and the mesh roughness is 0.1 to 0.2 mm. A tubular member 7 is attached to an edge of the plate-shaped member 6 so as to surround the edge. One end of the cylindrical member 8 is 10 m from the plate member 7.
It protrudes slightly longer than m. One end of the cylindrical member 8 is configured to cooperate with one surface of the plate member 7 and the bottom surface of the mold 1 to define the shape of the composite member to be manufactured. The other end of the cylindrical member 8 protrudes from the plate member 7 by an appropriate length. The other end of the tubular member 8 is connected to a vacuum pump 9. Thereby, the space defined by the other end of the cylindrical member 8 and the other surface of the plate member 7 is 620 mm.
A negative pressure of about Hg2 can be obtained.

Here, the plate-like member 7 is made of one material selected from the group consisting of permeable graphite, permeable foamed metal, permeable sintered metal and permeable ceramics. These materials have good air permeability and mold release properties. The tubular member 8 is made of isolite or alumina refractory (Lumiboard-
It is made of one material selected from the group consisting of trade name-), permanent coated iron, graphite plate and ceramic plate.

Next, as shown in FIG.
Mark a pressing force toward the bottom surface of the cavity 2 while applying a negative pressure to the surface of the pressure Subeku, the combination of the plate-like member 7 and the cylindrical member 8, one end of the tubular member 8 is in the inorganic particle layer 6
Push toward the bottom of cavity 2 so that
Pressing (FIG. 4), and one end of the cylindrical member 8 is brought into contact with the bottom surface of the mold 1 (FIG. 5). Here, FIGS. 3, 4 and 5
FIG. 4 is an explanatory view showing third, fourth, and fifth steps of the embodiment of the present invention, respectively. At this time, the vacuum pump 9 is operated, and the space defined by the other end of the cylindrical member 8 and the other surface of the plate member 7 is set to a negative pressure of about 620 mmHg. Also,
The combination of the mold 1, the plate member 7, and the cylindrical member 8 is inclined toward the drain hole 5 by about 10 degrees.

As a result, the air in the gap between the particles of the inorganic particle layer 6 at one end of the cylindrical member 8 is removed from the plate-like member 7.
To the other end of the cylindrical member 8, and the gap between the particles of the inorganic particle layer 6 is impregnated with the molten metal 4 instead. The molten metal overflowing in the cavity 2 is discharged out of the casting mold 1 through the drain hole 5. The mold 1 and the combination of the plate-shaped member 5 and the cylindrical member 8 are inclined by about 10 degrees toward the drain hole 5 so that the molten metal overflowing in the cavity 2 is discharged from the drain hole 5. That's why.

The manufactured composite member is released by inverting the mold 1.

In the above embodiment, the molten metal 4
Includes melts of copper, aluminum, magnesium, and their alloys.

In the above embodiment, the inorganic particle layer 5
Include vitreous particles (G light-trade name-), volcanic glassy deposits (Shirasu balloon-trade name-), and ceramic porous particles (cerabies-trade name-).

[0024] The glassy particles (G Light - Product Name -) is,
Crushing glass, after being foamed by heating and dissolving is produced by sizing. The glass beads, heat transfer conductivity ratio is smaller than the 0.06Kcal / m · h · ℃ and silica sand, the specific heat is large and 0.3~0.41cal / g · ℃,
The particle size is between 0.5 and 1 mm. G light has a specific gravity of 0.3 to 0.5, which is lighter than silica sand.

Further, the present G light has a sufficient fire resistance as a composite material with a non-ferrous metal. Also, if G-lite is used as the porous inorganic particles, recycling of glass waste can be achieved.

The volcanic vitreous deposit (Shirasu balloon-trade name-) is produced by heating and dissolving Shirasu, a volcanic eruptive substance, to foam and then sizing. The shirasu balloons, heat transfer conductivity rate 0.05~0.09Kcal
/ M · h · ° C, which is smaller than silica sand, and the specific heat is 0.24c
al / g · ° C. , particle size is 0.3 to 0.8 mm
It is. This shirasu balloon has a specific gravity of 0.07 to 0.2.
And lighter than quartz sand or glass beads.

[0027]

The composite material of the inorganic particle layer and the metal according to claim 1
According to the method of manufacturing the material, the shape of the composite material to be manufactured
A cylindrical member defining one end of an inorganic particle.
The bottom of the mold cavity so that it is pushed out of the child layer
Since it is pressed toward the surface, it is in the fluid inorganic particle layer.
The cylindrical member enters into the space to form a space inside the cylindrical member
And simultaneously with the pressing of the tubular member,
Applying a negative pressure to the surface of the inorganic particle layer inside
Since a pressing force is applied to the bottom of the cavity,
Fluid inorganic in a limited area inside the member
Negative pressure can be applied evenly to minute gaps between porous particles
As a result, the molten metal is evenly penetrated into the inorganic particles
In addition, the fluid inorganic particles can be homogenized in the molten metal.
Etc. can be dispersed. The inorganic particle layer according to claim 4.
And according to the metal composite material manufacturing equipment should be manufactured
A cylindrical member that defines the shape of the composite material, and air passes through
And forbid the passage of molten metal
Combination with a plate-shaped member made of material
Cavity so that one end is pushed into the inorganic particle layer
Pressed towards the bottom of the
One end of the tubular member is pushed into the layer and the inside of the tubular member is
To form a space, and furthermore, a cylindrical portion through a plate-shaped member.
Apply a negative pressure to the surface of the inorganic particle layer inside the material.
Since a pressing force is applied toward the bottom of the cavity,
Fluid in a limited area inside the tubular member
Negative pressure should be applied evenly to the fine gaps between inorganic particles.
As a result, the molten metal is evenly distributed in the inorganic particles.
Infiltration and the addition of fluid inorganic particles into the molten metal
Can be evenly distributed.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a first step of an embodiment of the present invention.

FIG. 2 is an explanatory view showing a second step of the embodiment of the present invention.

FIG. 3 is an explanatory view showing a third step of the embodiment of the present invention.

FIG. 4 is an explanatory view showing a fourth step of the embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a fifth step of the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mold 2 Cavity 3 Side wall 4 Molten metal 5 Drain hole 6 Inorganic particle layer 7 Plate member 8 Cylindrical member 9 Vacuum pump 10 Cutting plate

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B22D 19/00 B22D 19/14

Claims (6)

(57) [Claims] 1. A Rutotomoni upward is provided to the mold is opened
Injecting molten metal into a cavity having a bottom surface, placing an inorganic particle layer on the injected molten metal, and a cylindrical member defining the shape of the composite material to be produced
An inorganic particle layer in which one end of the cylindrical member is described above.
Toward the bottom of the cavity to be pushed into
While applying a negative pressure to the surface of the inorganic particle layer described above inside the cylindrical member.
Manufacturing method for the inorganic particle layer and the metal of the composite material, which comprises the step of indicia pressurizing the pressing force toward the bottom surface of the cavity. 2. The method according to claim 1, wherein the surface of the inorganic particle layer is negatively charged.
Pressing force toward the bottom of the cavity while applying pressure
The step of allowing air to pass through and
Made of a material that can prohibit the molten metal from passing
The method for producing a composite material of an inorganic particle layer and a metal according to claim 1, wherein the method is performed via a plate-shaped member . 3. The cylindrical member is configured so that an edge of the plate member is formed.
The method for producing a composite material of an inorganic particle layer and a metal according to claim 2, wherein the composite material is attached to an edge of the plate-shaped member so as to surround it . A mold wherein upward with calibration <br/> Activity with Rutotomoni bottom is opened, the molten metal injected into the cavity, and on the material layer made of inorganic particle layer is placed thereon A plate member made of a material that is mounted and that allows air to pass therethrough and prohibits the molten metal from passing therethrough; and a front plate surrounding an edge of the plate member.
The composite to be manufactured, attached to the edge of the plate-like member and cooperating with the bottom surface of the cavity and the plate-like member
A cylindrical member that defines the shape of the material , and a combination of the cylindrical member and the plate- shaped member, one end of the cylindrical member is
Pressing means for pressing toward the bottom surface of the cavity so as to be pushed into the placed inorganic particle layer ;
At the other end of the tubular member, a negative pressure is applied to the surface of the plate-like member.
An apparatus for producing a composite material of an inorganic particle layer and a metal, comprising a negative pressure applying means for applying a negative pressure . 5. The platy member is made of one material selected from the group consisting of permeable graphite, permeable foamed metal, permeable sintered metal, and permeable ceramics. 5. An apparatus for producing a composite material of an inorganic particle layer and a metal according to 4. 6. The cylindrical member is made of one material selected from the group consisting of isolite, alumina-based refractory, permanent coating iron, graphite plate and ceramic plate. Or the apparatus for producing a composite material of an inorganic particle layer and a metal according to 5.