JP2947295B2 - Bushing for fiber formation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to relates to a fiber-forming bushings for spinning by discharging the inorganic fiber material such as glass in the hot melt state from a number of nozzles.

[0002]

2. Description of the Related Art A bushing for forming a fiber is provided with a number of nozzles projecting from the bottom of a boat-shaped vessel made of Pt or a Pt alloy into which a molten fiber material is to be charged. The fiber-forming bushing is configured so as to have a fiber shape at the tip of the fiber. A method of attaching a nozzle to a bottom plate in such a bushing for forming a fiber is described in JP-B-45-2329 and JP-B-59-125.
No. 265. That is, FIG.
As shown in FIG. 4, a stud-shaped nozzle element 4 is formed by integrally integrating a foot portion 1 and a frusto-conical portion 3 having a step portion forming a large-diameter surface 2. The nozzle element 4 is shown in FIG. The foot 1 is locked in a hole 6 having a diameter of about 2 mm formed in the bottom plate 5 as shown in the figure. In this locking, a Pt solder for welding is used as a washer 7 having a thickness of about 0.2 mm. But at this time,
The washer 7 is used alone as shown in FIG. 5 and is positioned as shown in the left two rows of FIG. 6 and locked as shown in FIG. 7, or as shown in FIG. As shown in FIG. 9, the nozzle element 4 is aligned and locked as shown in FIG. 10, and the nozzle element 4 is locked in all the holes formed in the bottom plate 5 in this manner.
The bottom plate 5 and the periphery of the nozzle element 4 are heated to melt the washer 7 so as to be integrally formed. Thereafter, as shown in FIG. 11, a hole is formed in the center of each nozzle element 4 to form a bushing for forming fibers. However, according to such a conventional technique, in the process of forming glass fibers, since high-temperature and long-time heating is maintained, deformation occurs in the bushing itself, which affects the accuracy of the glass fibers, and unfavorably forms the glass fibers. is there. This is due to Pt-R, a component material of the bushing.
h There is a problem with the high temperature strength of the alloy.

[0003]

The problem to be solved is that the material constituting the bottom plate is made of a material which is less deformed even for a long time at a high temperature.

[0004]

SUMMARY OF THE INVENTION The present invention provides a Pt-Rh / Pt-R
u. One of Pt-Rh / Pt-Ir or Pt-Rh / Pt-W
By configuring as all integral and solid wearing Bruno nozzle element to the above multi-layer composite material of the bottom plate, high deformation of the bushing itself be in the formation of the glass fiber process high temperature for a long time heating is maintained with less precision machining It can be performed.

[0005]

FIG. 1 is an enlarged perspective view of a bottom plate material, and FIG. 2 is a sectional view showing a state in which a nozzle element is fitted into a hole of the bottom plate.
10% Rh-Pt alloy plate with a thickness of 12mm, a width of 120mm and a length of 400mm between two 8% 10% Rh-Pt alloy plates 120mm wide and 400mm long.
The Pt alloy plate 9 was sandwiched and pressed by hot rolling to a thickness of 10 mm to obtain a three-layer composite plate 10 of 10% Rh-Pt / 10% Ru-Pt / 10% Rh-Pt. Next, the composite plate 10 is cold-rolled to a thickness of 1.8 mm, cut into predetermined dimensions, and holes 11 for fitting nozzle elements are formed at predetermined intervals to form a bottom plate 12. The nozzle element 4 is the same as the conventional one, and the Rh-Pt
The foot 1 is formed by header processing of the alloy. The foot 1 of the nozzle element 4 is inserted into the hole 11 of the bottom plate through the Pt washer 7 as described above, and the foot 1 is caulked and locked. Then, the Pt washer 7 is melted by a burner and the nozzle is melted. The elements 4 are melted and fixed to form an integral unit.
Was drilled at the center of the sample to form a fiber-forming bushing. In the above embodiment, a composite material of 10% Rh-Pt and 10% Ru-Pt was used, but 10% Ir-Pt or 10% W-Pt may be used instead of 10% Ru-Pt.

[0006]

According to the present invention described in detail above, Pt
Pt is inserted into the hole made in the bottom plate of the alloy fiber bushing.
In the fiber-forming bushing with a welded anchoring the nozzle element made of alloy, Pt-Rh / Pt-Ru . Pt-Rh / Pt-Ir or
Pt-Rh / Pt-W in one or more multi-layer composite material of the bottom plate of the
By that the Roh nozzle element solid wear to the total integral has the effect of deformation of the bushing itself be in the formation of the glass fiber process high temperature for a long time heating is maintained Ru can be performed with high reduced precision processing Further, there is an effect that the durability of the bushing can be improved.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view of a bottom plate member of an embodiment.

FIG. 2 is a cross-sectional view showing a state where a nozzle element is fitted in a hole of a bottom plate.

FIG. 3 is a perspective view showing a conventional example of a nozzle element.

FIG. 4 is a plan view of a bottom plate.

FIG. 5 is a perspective view of a washer.

FIG. 6 is a plan view showing an attached state of a nozzle element.

FIG. 7 is a cross-sectional view of a state where the nozzle element is fitted in a hole of a bottom plate.

FIG. 8 is a plan view of a continuous sheet.

FIG. 9 is a plan view showing an attached state of a nozzle element.

FIG. 10 is a cross-sectional view showing a state where the nozzle element is fitted into a hole of the bottom plate.

FIG. 11 is an explanatory view showing a state where drilling is performed at the center of the nozzle element.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foot part 4 Nozzle element 7 Washer 8 Pt-Rh alloy plate 9 Pt-Ru alloy plate 10 Composite plate 11 Hole 12 Bottom plate

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yasuhiro Sagara 2-9-12 Kaji-cho, Chiyoda-ku, Tokyo Inside Tokuriki Main Store (72) Inventor Hideo Matsunawa 2-9-1, Kaji-cho, Chiyoda-ku, Tokyo Inside the Tokuriki Honten Co., Ltd. (72) Inventor Kazuo Kondo 2-9-1, Kaji-cho, Chiyoda-ku, Tokyo Inside the Tokuriki Honten Co., Ltd. (72) Takashi Nara 2-9-1, Kaji-cho, Chiyoda-ku, Tokyo Inside the Tokuriki Main Store (72) Inventor Shigeru Tanaka 2-9-12 Kaji-cho, Chiyoda-ku, Tokyo Inside the Tokuriki Main Store (56) References JP-A-2-31325 (JP, A) Japanese Patent Publication No. Sho 60-56590 ( JP, B2) (58) Field surveyed (Int. Cl. ⁶ , DB name) D01D 4/00-4/02

Claims (1)

(57) [Claims] 1. A into a hole drilled in the bottom plate of the Pt alloy fibers forming bushing, Oite the fiber forming bushings welded fixing the Pt alloy nozzle element, Pt-Rh / Pt-Ru . Pt-Rh / Pt-Ir or Pt-Rh / Pt-W
One type or more multi-layer composite material of the bottom plate of the Roh nozzle element
Fiber forming bushings <br/> Shin grayed characterized in that the total integrated by solid wear.