JP3516238B2 - Manufacturing method of bushing plate - Google Patents

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 a so-called bushing plate, a base plate having nozzle holes for a molten glass filling box or bushing used for producing glass fibers or glass fibers such as continuous glass filaments. is there.

[0002]

2. Description of the Related Art Conventionally, as a method of manufacturing a bushing plate of this type, for example, JP-A-60-7714 has been used.
The method disclosed in Japanese Patent Publication No. 2 is known. According to such a conventional method, after arranging a large number of nozzle holes in the plate material, the nozzle holes on the plate material surface are arranged side by side in a row or in a vertical direction, and the holes or holes in the horizontal or vertical rows are machined so as to form a convex strip shape around the holes. After that, by forming the nozzle outline around each nozzle hole by electrical discharge machining using an electrode jig that has a recess or hole that matches the nozzle shape around each nozzle hole to near the convex base end. The bushing plate is manufactured by forming nozzles in the plate material. By the way, in this type of bushing plate, the arrangement interval and the number of nozzles vary depending on the application in which it is used. That is,
According to these applications for producing glass fibers or continuous glass filaments, for example, nozzles in which the number is changed in the range of 200 to 4000, so-called individual bushing plates in which the arrangement interval and the number of holes are changed in the range of 200 to 4000 holes Is required. Therefore, in the conventional method, an electrode jig having a recess or a hole having a nozzle shape corresponding to the nozzle hole arrangement interval and the number of the nozzle holes for electric discharge machining is required. That is, since a dedicated processing jig is required, in order to manufacture individual (several types) bushing plates in which the arrangement interval and the number of nozzles are changed, the discharge having the recesses or holes corresponding to the arrangement interval and the number of nozzles is required. The electrode jigs for processing must be manufactured and prepared individually. That is, the arrangement interval and the number of holes vary from 200 holes to 4000 holes, for example, 200 holes, 400 holes, 800 holes, 1600 holes, etc. All of these arrangement intervals and the number of holes or holes corresponding to the holes. Since it is necessary to individually prepare and prepare electrode jigs having the above, the production cost is enormous, and the equipment cost is enormous. At the same time, storage management of all of them is required, so a wide storage space is secured. It had many problems such as having to do it.

[0003]

SUMMARY OF THE INVENTION According to the present invention, there is a portion in which the arrangement spacing is slightly changed even if the number of holes is changed in the range of 200 to 4000 holes in the horizontal or vertical direction which is continuous with the entire length in one direction of the plate material. Focusing on this, by preparing one or several types of jigs that have holding portions that hold the above-mentioned portions whose arrangement intervals do not change over the entire length in parallel at fixed intervals, the range from 200 holes to 4000 holes can be obtained. It is an object of the present invention to provide a manufacturing method capable of manufacturing a bushing plate, which is commonly used for manufacturing a bushing plate in which the number of holes is changed.

The above-mentioned part of the plate material which is continuous in one direction with the arrangement interval changing only slightly means that the molten glass discharged from nozzles of the plate material arranged in a row in a row at intervals according to the number of holes is cooled. It is an installation part for installing a cooling mechanism such as a heat exchange fin that solidifies between nozzle groups arranged in parallel in every two rows in the vertical direction, and this installation portion manufactures good quality glass fiber. In this type of fiber industry, it is important to provide glass fibers such as glass fibers or continuous glass filaments by providing the nozzles arranged in a row in the longitudinal direction at intervals of two rows every two rows. It is a mandatory condition.

[0005]

The technical means taken by the present invention to achieve the above object is to form a large number of holes at regular intervals in a plate material made of a Pt-based alloy, and then By interposing a Pt material between the hole and the nozzle made of Pt-based alloy attached to this hole, and then performing a hot treatment .
The surface of the hole is joined to the surface of the nozzle . At this time, the hot treatment is performed at 1000 to 1400 ° C.
It may be applied in a temperature atmosphere. Further, bored a number of holes at a constant sequence interval plate material made of Pt-based alloy, by interposing a Pt material between the nozzle made of Pt-based alloy attached to this hole and the hole, and thereafter By pressing the Pt material in the solid state , the nozzle surface is pressure bonded to the hole surface.
Characterized by joining . Furthermore, a large number of holes are formed in the plate material made of Pt-based alloy at regular array intervals,
By interposing a Pt material between each hole and a nozzle made of a Pt-based alloy attached to this hole, and then simultaneously performing hot / pressure welding treatment in the solid state of the Pt material , the nozzle surface is
It is characterized in that the surface of the hole is pressure-bonded . On this occasion,
The hot treatment and pressure treatment are performed simultaneously at 600 to 1400 ° C.
May be given. Further, the hot treatment and / or pressure welding treatment
Hold the entire length of the back surface of the plate before applying
Nozzle on a jig that has holding parts in parallel at regular intervals.
It is characterized in that the above-mentioned plate on which a package is installed is placed.

[0006]

Therefore, according to the technical means described in claims 1 and 2 of the present invention described above, by hot working, both materials are provided between the Pt material and the plate material made of the Pt-based alloy and the nozzle. Diffusion of Pt atoms occurs, and the Pt atoms are bonded to each other by this diffusion, whereby the nozzle is bonded to each hole of the plate material and integrated with the plate material. Further, according to the technical means of claim 3 , the Pt material undergoes a plastic deformation conforming to the hole surface and the nozzle surface of the plate material made of a Pt-based alloy by the pressure welding, and the plastic deformation causes the Pt material to become a plate material. The nozzle is bonded to each hole of the plate material and integrated with the plate material by press-fitting both the unevenness of the hole surface and the uneven surface of the nozzle surface. Further, claim 4
According to the technical means described in ( 5) and (5), the Pt material undergoes pressure-welding while simultaneously undergoing plastic deformation that conforms to the hole surface and the nozzle surface of the plate material made of a Pt-based alloy while being promoted by hot working. The nozzles are bonded to the holes of the plate material and the unevenness of the nozzle surface, whereby the nozzles are joined to the holes of the plate material and integrated with the plate material. And the technique according to claim 6.
According to the surgical means, the part between the upper surface of the holding part and the holding part
The distance (height) between the upper surface of the
The length of the protruding part of the nozzle that exists in a protruding state
By making it longer and not contacting the nozzle with the jig,
Prevents the nozzle from breaking.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the practice of the present invention will be described below. Claim 1 (hereinafter referred to as the first invention) is that a plate material 1 made of a Pt-based alloy is provided with a large number of holes 2 at regular intervals. Then
Next, a Pt material 4 is interposed between each hole 2 and a nozzle 3 made of a Pt-based alloy to be attached to the hole 2, and then a hot treatment is applied to the plate material 1 made of the Pt material 4 and the Pt-based alloy. By causing diffusion of Pt atoms of both materials between the nozzle 3 and the nozzle 3, and bonding the nozzles 3 to each hole 2 of the plate material 1 by the bonding of Pt atoms by this diffusion, and integrating with the plate material 1. , A bushing plate having a large number of nozzles 3 at predetermined array intervals (see FIGS. 1 and 2).

The hole 2 has a step which penetrates the plate material 1 from a plate front surface 1-1 toward a back surface 1-2 thereof as illustrated in FIGS. 3 to 5 by using a drilling tool such as a drill. ，
Taper, hole shape with upper half tapered, or recessed in plate back surface 1-2 that is coaxially communicated with nozzle hole 5 drilled from plate surface 1-1 as illustrated in FIG. The nozzles 3 that are attached to the holes 2 conform to each hole shape and are formed at predetermined intervals according to the hole shape and the like.
And Pt material 4 are formed between them and the outer shape.

As a method of interposing the Pt material 4 interposed between each hole 2 of the plate material 1 and the nozzle 3, a film-shaped Pt foil is wound around the surface (outer surface) of the nozzle 3 or a hole is formed. 2 Interposition between the hole 2 and the nozzle 3 by winding it on the surface (inner surface), or a step or taper that can adapt the Pt foil to the surface (inner surface) shape of the hole 2 as shown in FIG. It is formed into a tubular shape such as a shape and is inserted and set on the nozzle 3 side or the hole 2 side so as to be interposed between both the hole 2 and the nozzle 3 and further plated on the nozzle 3 side or the hole 2 side or both. It is conceivable that the Pt film is preliminarily attached by the appropriate attachment means, so that the Pt film is interposed between both the hole 2 and the nozzle 3, and one of them is selected. The Pt-based alloy used for the plate material 1 and nozzle 3 is Pt-
Rh alloy, or Pt over ZrO ₂ alloy that the ZrO ₂ oxide particles was allowed mixing finely dispersed and the like to Pt.

Next, a method for manufacturing a bushing plate by hot processing (hereinafter referred to as the present method) will be described based on the following hot working conditions.

A. Furnace used: Electric or gas heating furnace b. Furnace temperature: 1000-1400 ° C c. Material of plate material: Pt-Rh alloy d. Nozzle material: Pt-Rh alloy e. Plate material thickness: 1.5 mm f. Nozzle shape (size): shown in FIG. 8 g. Pt material: Pt foil with a thickness of 5 to 10μ Note that the reason for setting the furnace temperature to 1000 to 1400 ° C is 10
Below 00 ° C, the bonding (diffusion) of Pt atoms in the Pt-based alloy, the plate material 1 and the nozzle 3 and the Pt foil 4 is unlikely to occur. On the other hand, if the temperature exceeds 1400 ° C., thermal stress strain (residual strain) occurs in the plate material 1, and the quality of the manufactured glass fiber or the like becomes uneven. The furnace temperature setting of 1000 to 1400 ° C. is a case where no mechanical pressure (pressure contact force) is applied between the surface of the hole 2 and the surface of the nozzle 3, and it is not limited to this when the pressure is applied. First, in this method, each hole 2 of the plate material 1 in which a large number of holes 2 are drilled at a predetermined arrangement interval by drilling with a drill or the like is formed on the surface (outer surface).
The nozzle 3 wound with the Pt foil 4 is inserted and set, and the Pt foil 4 is interposed between the nozzles 3, and then the plate material 1 is prefabricated as shown in FIG. The plate material 1 is provided with the installation portions 7 of the cooling mechanisms 6 such as heat exchange fins existing at intervals of two rows of the nozzle groups 3-1 arranged in the horizontal direction.
Back surface 1-2 of the jig 9 having a holding portion 8 for holding the entire length
Place in an electric or gas heating furnace with it placed on top. Thus, according to the method of the first aspect of the present invention, the Pt foil 4 and the hole 2 surface (inner surface) and the nozzle 3 surface (outer surface) of the Pt foil 4 and the plate material 1 are subjected to hot working in an atmosphere of a furnace temperature of 1000 to 1400 ° C. Diffusion occurs in which Pt atoms of both materials migrate (displace) between them and the Pt atoms bond to each other by this diffusion, and the surface of the nozzle 3 is fusion-bonded to the surface of each hole 2 of the plate material 1 A bushing plate integrated with material 1 is obtained.

By the way, the installation portions 7 of the cooling mechanisms 6 such as the heat exchange fins existing at intervals of two rows of the nozzle groups 3-1 arranged in one row in the vertical direction in the horizontal direction are provided over the entire length of the back surface 1-2 of the plate material 1. The jig 9 having the holding portions 8 for holding in parallel at a constant interval is manufactured and placed in a size corresponding to 4000 holes, and all jigs from 200 holes to 4000 holes are prepared. It may be used for manufacturing bushing plates, or several types such as 200-hole to 800-hole, and 1600-hole to 2400-hole for easier handling. It may be placed so that it can be appropriately used depending on the number of holes.

Next, claim 2 (hereinafter referred to as the second invention)
The embodiment of the present construction method according to the present invention will be described. In such an embodiment, the plate material 1 and the nozzle 3, and the Pt material 4 interposed between both the nozzle 3 and the hole 2 of the plate material 1 are described above. Since it is the same as the embodiment of the first invention, the detailed description thereof will be omitted. In this embodiment, the pressure treatment is applied instead of the hot treatment described in the first aspect of the invention, so that the Pt material 4 has holes 2 in the plate material 1 made of a Pt-based alloy.
By causing plastic deformation that conforms to the surface (inner surface) and the surface of the nozzle 3 (outer surface), this plastic deformation press-bonds both the unevenness of the hole 2 surface of the plate material 1 of the Pt material 4 and the unevenness of the nozzle 3 surface to the nozzle. The surface 3 is joined to the surface of each hole 2 of the plate material 1 to be integrated with the plate material 1. However,
The second invention uses a Pt foil as the Pt material 4 interposed between both the plate material 1 and the nozzle 3 and the nozzle 2 and the hole 2 of the plate material 1 described in detail in the first invention, and press-contacts the Pt foil 4. By giving plastic deformation by processing, the surface of the nozzle 3 is pressure-bonded to the surface of the hole 2 by the plastic deformation of the Pt foil 4 to achieve integration with the plate material 1, and thereby a large number of predetermined intervals are arranged. The bushing plate having the nozzles 3 is manufactured.

Next, the present method of manufacturing the bushing plate by the pressure welding process will be described based on the following pressure welding processing conditions.

A. Pressing means: Press b. Material of plate material: Pt-Rh alloy c. Nozzle material: Pt-Rh alloy d. Plate material thickness: 1.5 mm e. Nozzle shape (size): shown in FIG. 6 f. Pt material: Pt foil having a thickness of 5 to 10 μm As described in detail in the first aspect of the invention, the plate material 1 in which the nozzle 3 is inserted and set by interposing the Pt foil 4 between each hole 2 is placed on the jig 9. Set on the base (lower mold) of the press machine in the
The pressure plate (upper die) of the press is lowered until the upper ends of the nozzles 3 existing in a state of protruding from the surface 1-1 of the plate material 1 are flush with the surface 1-1 of the plate material 1.
Thus, according to the present invention method of the second invention, Pt
Between the surface of the hole 2 of the plate material 1 and the surface of the nozzle 3 the foil 4 is caused to undergo plastic deformation that conforms to both surfaces, and this plastic deformation causes the Pt foil 4 to have both the unevenness on the surface of the hole 2 and the unevenness on the surface of the nozzle 3. By pressing the surface of the nozzle 3 onto the surface of each hole 2 of the plate material 1, the bushing plate integrated with the plate material 1 is obtained (see FIG. 1).

Next, claim 3 (hereinafter referred to as a third invention)
The embodiment of the present construction method according to the present invention will be described. In such an embodiment, the plate material 1 and the nozzle 3, and the Pt material 4 interposed between both the nozzle 3 and the hole 2 of the plate material 1 are described above. Since it is the same as the embodiment of the first invention, the detailed description thereof will be omitted. In this embodiment, the Pt material 4 is formed by pressure welding by simultaneously performing the hot treatment described in the first invention and the pressure welding described in the second invention.
The plate material 1 of the Pt-based alloy, which is made of Pt-based alloy, is caused to accelerate while thermally promoting the plastic deformation that accompanies the hole 2 surface (inner surface) and the nozzle 3 surface (outer surface). The surface of the nozzle 3 is bonded to the surface of each hole 2 of the plate material 1 by pressure bonding to both the unevenness of the surface of the hole 2 and the unevenness of the surface of the nozzle 3 to be integrated with the plate material 1. Therefore, the third invention uses the Pt foil as the Pt material 4 interposed between the plate material 1 and the nozzle 3 and the nozzle 2 and the hole 2 of the plate material 1 described in the first and second inventions, By subjecting the Pt foil 4 to plastic deformation by hot working and pressure welding, the surface of the nozzle 3 is pressure-bonded to the surface of the hole 2 by the plastic deformation of the Pt foil 4 to achieve integration with the plate material 1. As a result, a bushing plate having a large number of nozzles 3 at a predetermined arrangement interval is manufactured.

Next, the present method of manufacturing the bushing plate by the hot / pressing treatment will be described. The hot / pressing working conditions of the present method according to the third invention are those described in the first and second inventions, respectively. And the pressure welding process conditions are almost the same, except that the temperature inside the furnace under the hot working conditions described in the first invention is set to 600 to 1400 ° C, and the pressure welding process such as a press machine is internally used as the equipment to be used. Since an electric or gas heating furnace equipped with a machine is used, its description is omitted. As described in detail in the first aspect of the invention, a plate material 1 in which a nozzle 3 is inserted and set with a Pt foil 4 interposed between each plate 2 and a plate material 1 placed on a jig 9 is pressed in an electric or gas heating furnace. Set on the base (lower mold) of the machine, the surface of plate material 1
1-1 The pressure plate (upper die) of the press machine is lowered in the furnace temperature atmosphere of 600 to 1400 ° C until the upper end of each nozzle 3 existing in a state protruding from the 1-1 becomes flush with the surface 1-1. Let

Thus, according to the method of the present invention of the third aspect, the Pt foil 4 interposed between both the nozzle 3 and the hole 2 of the plate material 1 is hot-pressed in a furnace temperature atmosphere of 600 to 1400 ° C. It is caused by accelerating the plastic deformation of the Pt foil 4 by performing pressure welding while applying the processing, and by this plastic deformation, the Pt foil 4 is promptly pressed to both the irregularities on the surface of the hole 2 and the irregularities of the nozzle 3 surface. The surface of the nozzle 3 to the plate material 1
A bushing plate joined to the surface of each hole 2 and integrated with the plate material 1 can be obtained (see FIG. 1), and can be obtained in a short time with high productivity as compared with the first and second inventions, and the nozzle 3 The bonded state to the plate material 1 becomes stronger. In addition, as described above, it can be carried out in a state where the temperature is kept lower than the temperature in the furnace described in the first aspect of the invention and the pressure (pressure contact force) by the press described in the second aspect of the invention is reduced.

In the production of the bushing plate by the hot / pressing process according to the third aspect of the present invention, in the case of mass production rather than mass production, as described above, the press machine such as a press machine is installed inside an electric or gas heating furnace. Without using the equipment installed in, the hole 2 portion of the plate material 1 in which the nozzle 3 is inserted and set is heated by an appropriate heating means such as a gas banner and the like while hitting each nozzle 3 with a hammer or the like. Also has the same effect.

[0020]

Since the manufacturing method of the present invention is constructed as described above, it has the following operational effects. According to claim 1, Pt atoms of both materials are diffused between the Pt material and the plate material made of a Pt-based alloy and the nozzle by hot working, and the Pt atoms are bonded to each other by this diffusion, The nozzle is joined to each hole in the plate material to obtain a bushing plate integrated with the plate material. This
Therefore, the Pt material itself does not deform, and the Pt material has a constant array spacing.
Pre-drilled holes in the plate material with many holes
Even if hot processing is performed after installing the nozzle, the nozzle
If the position is misaligned or the nozzle is tilted
To prevent. According to claim 2, the plate material and
Easy bonding (diffusion) of Pt atoms between nozzle and nozzle and Pt material
In addition, thermal stress strain is generated in the plate material.
By preventing, for example, manufacturing glass fiber
It is possible to prevent uneven quality. According to claim 3 , the Pt material is plastically deformed by pressure welding so that the hole surface of the plate material made of a Pt-based alloy and the nozzle surface are conformed to each other, and the plastic deformation causes the Pt material to be uneven on the hole surface of the plate material. The nozzle is bonded to each hole of the plate material by press-fitting to both the concave and convex portions on the surface of the nozzle to obtain a bushing plate integrated with the plate material. Therefore, the Pt material itself does not deform,
For plate material with many holes at regular intervals
After attaching the nozzle with pre-drilled holes, hot treatment
Even if you go, the nozzle position may shift and the nozzle may tilt.
Prevent you from leaving. According to the fourth aspect of the present invention, the Pt material undergoes the plastic deformation that is adapted to the hole surface and the nozzle surface of the Pt-based alloy at the same time by the pressure welding, while being promoted by the hot working. The nozzle is joined to each hole of the plate material by press-fitting to both the unevenness of the hole surface of the material and the unevenness of the nozzle surface, and a bushing plate integrated with the plate material is obtained. For this reason, change to the Pt material itself.
A shape with no holes and a large number of holes drilled at regular intervals.
After attaching the nozzle with pre-drilled holes to the rate material
Nozzle position may be misaligned even after hot processing
And prevent the nozzle from tilting. Claim 5
According to the description, the temperature when performing hot treatment or the like is 600 ° C. or higher.
By setting it above, the recrystallization of platinum is promoted so that the diffusion
It is easy to happen. According to claim 6, of the holding part
Distance (height) between the upper surface and the upper surface of the part between the holding parts
Are present in a state of protruding from the back surface of the plate material.
Make the nozzle longer than the length of the protruding part
Preventing the nozzle from breaking by not making contact.

Therefore, according to the manufacturing method of the present invention, 200
By preparing one or several types of jigs that have holding portions in parallel at regular intervals for holding the portions whose arrangement intervals change only slightly even if the number of holes changes from 4000 holes to 4000 holes over the entire length. The general purpose is to manufacture bushing plates whose number of holes varies from 200 to 4000 holes, which can be used to manufacture the bushing plate, and for the nozzle outer shape processing according to the change in the number of holes of the bushing plate to be manufactured conventionally. Since it is not necessary to individually manufacture and prepare electrode jigs having dents or holes, it is possible to significantly reduce the equipment and management labor. Therefore, it is possible to inexpensively manufacture and provide a bushing plate that manufactures glass fibers or glass fibers such as continuous glass filaments. Further, according to the third aspect, since the bushing plate is manufactured by simultaneously performing the heat treatment and the pressure contact treatment, the bushing plate can be obtained with high productivity in a short time,
Moreover, the nozzle can be more firmly joined to the plate material.

[Brief description of drawings]

FIG. 1 is a bottom view of a bushing plate obtained by the manufacturing method of the present invention.

[Fig. 2] The same vertical section front view

FIG. 3 is an enlarged sectional view of the main part.

FIG. 4 is an enlarged cross-sectional view of the main portion showing the holes formed in the plate material and the nozzles attached to the plate materials in different shapes.

FIG. 5 is an enlarged cross-sectional view of the main part showing the holes formed in the plate material and the nozzles attached to the plates in different shapes.

FIG. 6 is an enlarged cross-sectional view of the main part showing the shape of a hole formed in a plate material, the shape of a nozzle attached to the hole, and the mounting form thereof.

FIG. 7 is a perspective view showing an example of a Pt material formation mode.

FIG. 8 is a sectional view showing an example of the shape and dimensions of a nozzle.

FIG. 9 is a perspective view showing a jig used in the present invention having holding portions at regular intervals.

[Explanation of symbols]

1 ... Plate material 2 ... Hole 3 ... Nozzle 4 ... Pt material (Pt foil)

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) C03B 37/00-37/16

Claims (6)

(57) [Claims] 1. A plate material made of a Pt-based alloy is formed with a large number of holes at regular intervals, and the Pt material is interposed between each hole and a nozzle made of a Pt-based alloy attached to the holes,
After that, by subjecting the hole surface to the nozzle
A method for manufacturing a bushing plate, which comprises bonding to a surface . 2. The hot treatment is performed at 1000 to 1400 ° C.
The method according to claim 1, wherein the heating is performed in a temperature atmosphere.
Bushing plate manufacturing method. 3. A plate material made of a Pt-based alloy is formed with a large number of holes at regular intervals, and the Pt material is interposed between each hole and a nozzle made of a Pt-based alloy attached to the holes,
After that, the Pt material is subjected to the pressure welding treatment in the solid state .
A method of manufacturing a bushing plate , wherein the nozzle surface is pressure-bonded to the hole surface . 4. A plate material made of a Pt-based alloy is formed with a large number of holes at regular intervals, and the Pt material is interposed between each hole and a nozzle made of a Pt-based alloy attached to the holes.
After that, the Pt material in the solid state is subjected to hot treatment and pressure welding treatment at the same time so that the nozzle surface is pressure-bonded to the hole surface.
A method for manufacturing a bushing plate, which comprises: 5. The hot treatment / pressing treatment is 600 to 14
5. It is applied simultaneously at 00 ° C. 5.
Of manufacturing bushing plate of. 6. The hot treatment and / or pressure welding treatment is performed.
Before that, hold the holding part that holds the entire length of the back surface of the plate.
Nozzles are installed on jigs that are arranged in parallel at regular intervals.
2. The plate which is placed is placed.
5. A method for manufacturing the bushing plate according to any one of
Law.