JP3526235B2 - Method of manufacturing bushing for glass fiber production - Google Patents
Method of manufacturing bushing for glass fiber productionInfo
- Publication number
- JP3526235B2 JP3526235B2 JP11331899A JP11331899A JP3526235B2 JP 3526235 B2 JP3526235 B2 JP 3526235B2 JP 11331899 A JP11331899 A JP 11331899A JP 11331899 A JP11331899 A JP 11331899A JP 3526235 B2 JP3526235 B2 JP 3526235B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- glass fiber
- bushing
- tapered
- manufacturing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
- C03B37/083—Nozzles; Bushing nozzle plates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、ガラス繊維を製造
するのに用いるブッシングの製造方法に関する。
【０００２】
【従来の技術】従来のガラス繊維製造用ブッシングは、
一般に図１０に示すようにベースプレート１１に円孔１
２を多数穿設し、その多数の円孔１２に肉厚が全周全長
にわたって均一なパイプ１３を挿入し、その基端部を図
１１に示すように内側から押し拡げた後熱拡散接合して
製造していた。
【０００３】ところで、前者の方法により製造したガラ
ス繊維製造用ブッシングは、ベースプレート１１に対す
るパイプ１３の付け根付近に力がかかることがあり、ま
れに使用時ガラス吐出始めにガラスの流れをよくするた
め、生地取棒でこすった時、パイプ１３が付け根付近で
曲がったり、折れたりすることがあった。このためパイ
プ１３の肉厚を全部厚くすることが考えられるが、この
ようにすると吐出口部分の肉厚も厚くなり、吐出される
溶融ガラスの付着する量が多くなり、得られるガラス繊
維も太くなってしまう。また、上記の方法によりガラス
繊維製造用ブッシングを製造するとき、パイプ１３の取
付部が内側から押し拡げられることにより割れることが
あった。
【０００４】
【発明が解決しようとする課題】そこで本発明は、溶融
ガラスが吐出するパイプの肉厚を全長にわたって厚くせ
ずに、パイプの付け根付近で曲がったり、折れたりする
ことのないガラス繊維製造用ブッシングの製造方法を提
供しようとするものである。
【０００５】
【課題を解決するための手段】上記課題を解決するため
の本発明のガラス繊維製造用ブッシングの製造方法は、
ベースプレートに、先端が小径となるテーパ付円孔を多
数穿設すると共に、それらテーパ付円孔の先端周縁に中
空管状突起を延長形成し、他方パイプの先端部の肉厚が
薄く基端部の肉厚が厚くなるように外周にテーパを付す
と共に等しい内径の内周面の上端部のみ上方に拡開成形
して漏斗状の開口を形成し、然る後このパイプを前記ベ
ースプレートの多数のテーパ付円孔に挿通し、基端部を
テーパ付円孔及び中空管状突起の内周面に押し拡げて圧
着した後、熱拡散することを特徴とするものである。
【０００６】
【発明の実施の形態】本発明のガラス繊維製造用ブッシ
ングの製造方法の実施形態を図によって説明する。先
ず、ガラス繊維製造用ブッシングを図１によって説明す
ると、ベースプレート１に対する多数のパイプ２の取付
部２ａの付近の肉厚が、吐出口２ｂの付近の肉厚よりも
厚くなされて、ベースプレート１と多数のパイプ２が一
体化されて、ガラス繊維製造用ブッシング３が構成され
ている。このガラス繊維製造用ブッシング３の各パイプ
２に連なるベースプレート１の開口は、上方に拡開した
漏斗状の円孔４となっている。
【０００７】次に上記のガラス繊維製造用ブッシングを
製造する本発明の製造方法を図２〜図４によって説明す
ると、図２に示すようにベースプレート１に、先端が小
径となるテーパ付円孔１ａを多数穿設すると共に、それ
らテーパ付円孔１ａの先端周縁に中空管状突起１ｂを延
長形成する。この中空管状突起１ｂは、先端の肉厚より
も基端の肉厚が厚くなるように外周にテーパを付してい
る。他方、図３に示すようにパイプ２の先端部の肉厚が
薄く基端部の肉厚が厚くなるように外周にテーパ５を付
すと共に、等しい内径の内周面の上端部のみ上方に拡開
成形して漏斗状の開口６を形成する。然る後この図３の
パイプ２を図２のベースプレート１の多数のテーパ付円
孔１ａに図４（ａ）の状態を経て図４（ｂ）に示すよう
に挿通し、パイプ２の基端部をテーパ付円孔１ａ及び中
空管状突起１ｂの内周面に押し拡げて圧着した後、熱拡
散して、図１に示すガラス繊維製造用ブッシング３を得
る。
【０００８】上記のように製造されたガラス繊維製造用
ブッシング３は、ベースプレート１に対する多数のパイ
プ２の取付部２ａの付近の肉厚が、吐出口２ｂの付近の
肉厚よりも厚いので、衝撃を受けてもパイプ２の付け根
付近で曲がったり、折れたりすることがない。
【０００９】以下本発明のガラス繊維製造用ブッシング
の製造方法の具体的な実施例と従来例について説明す
る。
【００１０】<実施例>
厚さ1.8mm，幅50mm，長さ400mmのＰｔ−Ｒｈ10％合金よ
り成るベースプレートをプレス加工して、図２に示すよ
うに先端小径で、基端内径2.6mm，拡開角6.5度のテーパ
付円孔１ａを1000個3.5mm間隔に穿設すると共にそれら
テーパ付円孔１aの先端周縁に基端肉厚0.3mm，先端肉厚
0.2mm，長さ0.4mmの中空管状突起１bを延長形成した。
他方、内径1.6mm，外径2.6mmのＰｔ−Ａｕ５％合金パイ
プに、図３に示すように先端外径が2.05mmと肉厚が薄く
なるように外周に５度のテーパ５を付すと共に内周面の
上端部を長さ1.0mmにわたって拡開角35度でもって拡開
切削成形して漏斗状の開口６を形成した。然る後この図
３のパイプ２を図２のベースプレート１の多数のテーパ
付円孔１ａに図４（ｂ）に示すように挿通し、パイプ２
の基端部内プレス工具（図示省略）を入れてプレス加工
し、パイプ２の基端部を押し拡げてテーパ付円孔１ａ及
び中空管状突起１ｂの内周面に圧着し、最後に1400℃，
２時間の熱処理を行って熱拡散接合し、図１に示すガラ
ス繊維製造用ブッシング３を製造した。このガラス繊維
製造用ブッシング３の各パイプ２に連なるベースプレー
ト１の漏斗状の円孔４の開口径は、2.9mm，拡開角は35
度であり、各パイプ２の内径は1.7mm，基端外径3.05m
m，先端外径2.2mmで、吐出口２bの肉厚は0.25mm，取付
部２ａの肉厚は0.625〜0.675mmであって、５度のテーパ
が付されている。そしてベースプレート１とパイプ２と
が熱拡散結合した部分の断面を顕微鏡観察したところ、
ベースプレート１とパイプ２の境界では熱拡散により双
方の合金が拡散し、結晶が入り組み一体化して、充分な
金属結合が行われていた。
【００１１】<従来例>
実施例と同じ図２に示すベースプレート１の多数のテー
パ付円孔１ａに、図５に示すように内径1.6mm，外径2.1
mm，肉厚0.25mm，長さ6.0mmのＰｔ−Ａｕ合金パイプの
上端部に長さ3mmにわたって拡開角５度でもって拡開成
形して漏斗状の開口７を形成したパイプ２’を図６
（ａ）を経て図６（ｂ）を示すように挿通し、パイプ
２’の開口７内にプレス工具（図示省略）を入れてプレ
ス加工し、パイプ２’の開口７を押し拡げてテーパ付円
孔１ａ及び中空管状突起１ｂの内周面に圧着し、最後に
1400℃，２時間の熱処理を行って熱拡散接合し、図７に
示すガラス繊維製造用ブッシング３’を製造した。この
ガラス繊維製造用ブッシング３’の各パイプ２’に連な
るベースプレート１の漏斗状の円孔４’の開口径は2.9m
m，拡開角35度であり、各パイプ２’の内径は1.7mm，長
さ3.5mmの範囲の外径2.2mm，基端外径3.05mm，取付部
２’ａの肉厚は0.5〜0.55mmであって、５度のテーパが
付されている。そしてベースプレート１とパイプ２’と
が熱拡散接合した部分の断面を顕微鏡観察したところ、
ベースプレート１とパイプ２’の境界では熱拡散により
双方の合金が拡散し、結晶が入り組み一体化して、充分
な金属結合が行われていた。
【００１２】然して実施例及び従来例のガラス繊維製造
用ブッシングに於けるパイプ２，２’の先端部に、図８
（ａ）に示す測定用段付柱状治具１０を図８（ｂ）に示
すように挿入した上、該測定用段付柱状治具１０の未端
に荷重Ｐをかけて、パイプ２，２’のたわみ量を測定し
た処、図９のグラフに示すような結果を得た。尚、この
図９のグラフ中、従来例２としたガラス繊維製造用ブッ
シングは、パイプ２’の肉厚0.3mmとしたもので、その
他は前記従来例と同一寸法のものである。図９のグラフ
で明らかなように実施例のガラス繊維製造用ブッシング
は荷重が高いにもかかわらずたわみ量が少ないことが判
る。これはひとえに実施例のガラス繊維製造用ブッシン
グ３のパイプ２の取付部付近の肉厚が、パイプの先端吐
出口付近の肉厚よりも厚く形成されているからに他なら
ない。
【００１３】
【発明の効果】以上の説明で判るように本発明のガラス
繊維製造用ブッシングの製造方法で得られるブッシング
は、ベースプレートに対する多数のパイプの取付部付近
の肉厚が、パイプの先端吐出口付近の肉厚よりも厚くな
されてベースプレートと一体化されているので、パイプ
が衝撃を受けても取付部付近で曲がったり、折れたりす
ることがない。
【００１４】また、本発明のガラス繊維製造用ブッシン
グの製造方法によれば、パイプ製作時に取付部にテーパ
を付けるため、パイプを拡げても割れることがなくな
り、特にベースプレートに取付ける際、圧着力を高める
ために、パイプの内側を押し拡げる量を多くしても割れ
なくなり、上記の優れたガラス繊維製造用ブッシングを
容易に製造できる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a bushing used for manufacturing glass fibers. [0002] Conventional bushings for producing glass fiber are:
Generally, as shown in FIG.
2, a pipe 13 having a uniform thickness is inserted into the large number of circular holes 12 over the entire length of the entire circumference, and the base end thereof is expanded from the inside as shown in FIG. Had been manufactured. In the meantime, in the bushing for producing glass fiber produced by the former method, a force may be applied to the vicinity of the base of the pipe 13 with respect to the base plate 11. When rubbed with a dough bar, the pipe 13 may bend or break near the base. For this reason, it is conceivable to make the entire thickness of the pipe 13 thick. However, in this case, the thickness of the discharge port portion also increases, the amount of the molten glass to be discharged increases, and the obtained glass fiber becomes thick. turn into. Further, when the bushing for producing glass fiber is produced by the above method, the attachment portion of the pipe 13 may be broken by being pushed out from the inside. [0004] Accordingly, the present invention provides a glass fiber which does not bend or break near the base of the pipe without increasing the thickness of the pipe from which the molten glass is discharged over the entire length. An object of the present invention is to provide a method of manufacturing a manufacturing bushing . [0005] In order to solve the above problems,
The method for producing a bushing for glass fiber production of the present invention ,
In the base plate, a large number of tapered holes with small diameters are formed at the distal end, and hollow tubular projections are formed to extend around the distal end of the tapered holes. A taper is applied to the outer periphery so as to increase the wall thickness, and only the upper end portion of the inner peripheral surface having the same inner diameter is expanded and formed upward to form a funnel-shaped opening. It is characterized in that the base end is inserted into the circular hole, the base end portion is pressed and expanded to the tapered circular hole and the inner peripheral surface of the hollow tubular projection, and then thermally diffused. DETAILED DESCRIPTION OF THE INVENTION A bush for producing glass fibers according to the present invention.
An embodiment of a method for manufacturing a ring will be described with reference to the drawings. First, the bushing for manufacturing glass fiber will be described with reference to FIG. 1. The thickness of the vicinity of the mounting portion 2a of the plurality of pipes 2 with respect to the base plate 1 is made thicker than the thickness of the vicinity of the discharge port 2b. Are integrated to form a bushing 3 for glass fiber production. The opening of the base plate 1 connected to each pipe 2 of the glass fiber manufacturing bushing 3 is a funnel-shaped circular hole 4 that expands upward. Next, a manufacturing method of the present invention for manufacturing the above bushing for manufacturing glass fiber will be described with reference to FIGS. 2 to 4. As shown in FIG. And a plurality of hollow tubular projections 1b are formed on the periphery of the distal end of the tapered circular hole 1a. The outer periphery of the hollow tubular projection 1b is tapered so that the base end has a greater thickness than the distal end. On the other hand, as shown in FIG. 3, a taper 5 is provided on the outer periphery so that the thickness of the distal end portion of the pipe 2 is small and the thickness of the base end portion is large, and only the upper end portion of the inner peripheral surface having the same inner diameter is expanded upward. Opening is performed to form a funnel-shaped opening 6. Thereafter, the pipe 2 shown in FIG. 3 is inserted into the tapered holes 1a of the base plate 1 shown in FIG. 2 through the state shown in FIG. 4A as shown in FIG. The portion is pressed and spread over the inner peripheral surface of the tapered circular hole 1a and the hollow tubular projection 1b and pressed and then thermally diffused to obtain the glass fiber manufacturing bushing 3 shown in FIG. In the bushing 3 for manufacturing glass fiber manufactured as described above, the wall thickness near the mounting portion 2a of the many pipes 2 with respect to the base plate 1 is thicker than the wall thickness near the discharge port 2b. It does not bend or break in the vicinity of the base of the pipe 2 even if it is received. A bushing for producing glass fiber according to the present invention is described below.
A description will be given of a specific example and a conventional example of the manufacturing method of the present invention. <Example> A base plate made of a Pt-Rh 10% alloy having a thickness of 1.8 mm, a width of 50 mm, and a length of 400 mm was pressed, and as shown in FIG. Thousands of tapered holes 1a with an opening angle of 6.5 degrees are drilled at intervals of 3.5 mm, and a base wall thickness of 0.3 mm and a wall thickness of the front end of the tapered holes 1a are formed.
A hollow tubular projection 1b having a length of 0.2 mm and a length of 0.4 mm was formed to be extended.
On the other hand, a Pt-Au 5% alloy pipe having an inner diameter of 1.6 mm and an outer diameter of 2.6 mm is provided with a taper 5 of 5 degrees on the outer periphery so as to have a thinner outer diameter of 2.05 mm as shown in FIG. The upper end of the peripheral surface was expanded and cut at an expansion angle of 35 degrees over a length of 1.0 mm to form a funnel-shaped opening 6. Thereafter, the pipe 2 shown in FIG. 3 is inserted through a number of tapered circular holes 1a of the base plate 1 shown in FIG. 2 as shown in FIG.
A press tool (not shown) is inserted into the base end of the pipe 2 and press-worked. The base end of the pipe 2 is expanded and pressed to the inner peripheral surface of the tapered circular hole 1a and the hollow tubular projection 1b.
A heat treatment was performed for 2 hours to perform thermal diffusion bonding to produce the glass fiber producing bushing 3 shown in FIG. The opening diameter of the funnel-shaped circular hole 4 of the base plate 1 connected to each pipe 2 of the glass fiber manufacturing bushing 3 is 2.9 mm, and the spread angle is 35.
Degree, the inner diameter of each pipe 2 is 1.7mm, the base outer diameter is 3.05m
m, the tip outer diameter is 2.2 mm, the thickness of the discharge port 2b is 0.25 mm, and the thickness of the mounting portion 2a is 0.625 to 0.675 mm, and is tapered at 5 degrees. Then, when the cross section of the portion where the base plate 1 and the pipe 2 were thermally diffusion-bonded was observed with a microscope,
At the boundary between the base plate 1 and the pipe 2, both alloys diffused due to thermal diffusion, and the crystals were entangled and integrated, and sufficient metal bonding was performed. <Conventional Example> As shown in FIG. 5, a large number of tapered circular holes 1a of a base plate 1 shown in FIG.
Figure 2 shows a pipe 2 'having a funnel-shaped opening 7 formed by expanding the upper end portion of a Pt-Au alloy pipe having a thickness of 0.25 mm and a length of 6.0 mm, with a spread angle of 5 degrees over a length of 3 mm over a length of 3 mm. 6
As shown in FIG. 6B through (a), a press tool (not shown) is inserted into the opening 7 of the pipe 2 ′ to perform press working, and the opening 7 of the pipe 2 ′ is expanded by tapping. The inner peripheral surface of the circular hole 1a and the hollow tubular projection 1b is pressure-bonded, and finally,
A heat treatment was performed at 1400 ° C. for 2 hours to perform thermal diffusion bonding, thereby producing a glass fiber manufacturing bushing 3 ′ shown in FIG. The opening diameter of the funnel-shaped circular hole 4 'of the base plate 1 connected to each pipe 2' of the bushing 3 'for glass fiber production is 2.9 m.
m, the divergence angle is 35 degrees, the inside diameter of each pipe 2 'is 1.7mm, the outside diameter is 2.2mm in the range of 3.5mm, the base outside diameter is 3.05mm, and the thickness of the mounting part 2'a is 0.5 ~ 0.55 mm, with a 5 degree taper. Then, when the cross section of the portion where the base plate 1 and the pipe 2 'were thermally diffusion bonded was observed with a microscope,
At the boundary between the base plate 1 and the pipe 2 ′, both alloys diffused due to thermal diffusion, and the crystals were entangled and integrated, and sufficient metal bonding was performed. In the embodiment and the prior art bushing for producing glass fiber, the ends of the pipes 2 and 2 'are placed at the ends of FIG.
As shown in FIG. 8B, the measuring stepped columnar jig 10 shown in FIG. 8A is inserted, and a load P is applied to the end of the measuring stepped columnar jig 10 so that the pipes 2, 2 As a result of measuring the amount of deflection of ', the results shown in the graph of FIG. 9 were obtained. In the graph of FIG. 9, the bushing for producing glass fiber according to the conventional example 2 has a pipe 2 'having a thickness of 0.3 mm, and the other dimensions are the same as those of the conventional example. As is clear from the graph of FIG. 9, it can be seen that the bushing for glass fiber production of the example has a small amount of deflection despite the high load. This is only because the thickness of the glass fiber manufacturing bushing 3 in the vicinity of the mounting portion of the pipe 2 is formed to be thicker than the thickness of the vicinity of the discharge port at the tip of the pipe. As can be seen from the above description, the bushing obtained by the method for manufacturing a bushing for glass fiber production according to the present invention has a large thickness in the vicinity of the mounting portion of a large number of pipes with respect to the base plate. Since the pipe is made thicker than the wall near the outlet at the tip of the pipe and is integrated with the base plate, the pipe does not bend or break near the mounting portion even if it receives an impact. According to the method of manufacturing a bushing for manufacturing glass fiber of the present invention, the mounting portion is tapered at the time of manufacturing the pipe, so that the pipe is not broken even when it is expanded. Even if the amount of expanding the inside of the pipe is increased in order to increase the height, the pipe does not break, and the excellent glass fiber manufacturing bushing described above can be easily manufactured.
【図面の簡単な説明】
【図１】本発明のガラス繊維製造用ブッシングの一部を
示す縦断面図である。
【図２】本発明のガラス繊維製造用ブッシングを構成す
るベースプレートの製作形状を示す一部縦断面図であ
る。
【図３】本発明のガラス繊維製造用ブッシングを構成す
るパイプの製作形状を示す縦断面図である。
【図４】図２のベースプレートのテーパ付円孔に、図３
のパイプを挿通する途中（ａ）及び基端部をテーパ付円
孔に支持した状態（ｂ）を示す縦断面図である。
【図５】従来例のガラス繊維製造用ブッシングを構成す
るパイプの製作形状を示す縦断面図である。
【図６】図２のベースプレートのテーパ付円孔に、図５
のパイプを挿通する途中（ａ）及び上端の漏斗状の開口
の外周面をテーパ付円孔に支持した状態（ｂ）を示す縦
断面図である。
【図７】従来例のガラス繊維製造用ブッシングの一部を
示す縦断面図である。
【図８】実施例及び従来例のガラス繊維製造用ブッシン
グのパイプのたわみ測定治具（ａ）及びわたみ量測定要
領（ｂ）を示す図である。
【図９】実施例及び従来例のガラス繊維製造用ブッシン
グのパイプのたわみ量測定結果を示すグラフである。
【図１０】従来の一般的なガラス繊維製造用ブッシング
の製造要領を示す図である。
【図１１】従来のガラス繊維製造用ブッシングの他の製
造要領を示す図である。
【符号の説明】
１ ベースプレート
１ａ テーパ付円孔
１ｂ 中空管状突起
２，２’ パイプ
２ａ 取付部
２ｂ 吐出口
３ ガラス製造用ブッシング
４ 漏斗状の円孔
５ パイプ外周のテーパ
６ 漏斗状の開口BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing a part of a glass fiber manufacturing bushing of the present invention. FIG. 2 is a partial longitudinal sectional view showing a manufactured shape of a base plate constituting a bushing for producing glass fiber of the present invention. FIG. 3 is a longitudinal sectional view showing a manufactured shape of a pipe constituting a bushing for producing glass fiber of the present invention. FIG. 4 shows a tapered circular hole of the base plate of FIG.
FIG. 6 is a longitudinal sectional view showing a state in which the pipe is inserted (a) and a state in which the base end is supported by a tapered hole (b). FIG. 5 is a longitudinal sectional view showing a production shape of a pipe constituting a conventional bushing for producing glass fiber. FIG. 6 shows a tapered circular hole in the base plate of FIG.
FIG. 7 is a longitudinal sectional view showing a state in which the pipe is inserted (a) and a state in which the outer peripheral surface of the funnel-shaped opening at the upper end is supported by a tapered circular hole (b). FIG. 7 is a longitudinal sectional view showing a part of a conventional bushing for producing glass fiber. FIG. 8 is a view showing a deflection measuring jig (a) and a deflection measuring procedure (b) of a pipe of a bushing for producing glass fiber of an example and a conventional example. FIG. 9 is a graph showing the results of measuring the amount of deflection of a pipe of a bushing for producing glass fibers according to an example and a conventional example. FIG. 10 is a view showing a manufacturing method of a conventional general bushing for manufacturing glass fiber. FIG. 11 is a view showing another manufacturing method of a conventional bushing for producing glass fiber. DESCRIPTION OF SYMBOLS 1 Base plate 1a Tapered circular hole 1b Hollow tubular projection 2, 2 'Pipe 2a Attachment 2b Discharge port 3 Glass manufacturing bushing 4 Funnel-shaped circular hole 5 Pipe outer periphery 6 Funnel-shaped opening
Claims (1)
ーパ付円孔を多数穿設すると共に、それらテーパ付円孔
の先端周縁に中空管状突起を延長形成し、他方パイプの
先端部の肉厚が薄く基端部の肉厚が厚くなるように外周
にテーパを付すと共に、等しい内径の内周面の上端部の
み上方に拡開成形して漏斗状の開口を形成し、然る後こ
のパイプを前記ベースプレートの多数のテーパ付円孔に
挿通し、基端部をテーパ付円孔及び中空管状突起の内周
面に押し拡げて圧着した後、熱拡散することを特徴とす
るガラス繊維製造用ブッシングの製造方法。(57) [Claims 1] A large number of tapered circular holes with small diameters are formed in the base plate, and hollow tubular projections are formed to extend around the distal ends of the tapered holes. On the other hand, the outer periphery is tapered so that the thickness of the distal end portion of the pipe is thinner and the thickness of the base end portion is thicker, and only the upper end portion of the inner peripheral surface having the same inner diameter is expanded upward to form a funnel-shaped opening. After that, the pipe is inserted through a number of tapered holes in the base plate, and the base end is pressed and spread over the tapered hole and the inner peripheral surface of the hollow tubular projection, followed by heat diffusion. The manufacturing method of the bushing for glass fiber manufacture characterized by the above-mentioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11331899A JP3526235B2 (en) | 1999-04-21 | 1999-04-21 | Method of manufacturing bushing for glass fiber production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11331899A JP3526235B2 (en) | 1999-04-21 | 1999-04-21 | Method of manufacturing bushing for glass fiber production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000302472A JP2000302472A (en) | 2000-10-31 |
| JP3526235B2 true JP3526235B2 (en) | 2004-05-10 |
Family
ID=14609204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11331899A Expired - Fee Related JP3526235B2 (en) | 1999-04-21 | 1999-04-21 | Method of manufacturing bushing for glass fiber production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3526235B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153277B (en) * | 2010-12-24 | 2012-10-17 | 重庆国际复合材料有限公司 | Drain plate for preparing electronic grade spun yarns and electronic grade spun yarn preparation method |
| CN103193384B (en) * | 2013-04-18 | 2015-02-04 | 重庆国际复合材料有限公司 | Leak plate for drawing flat glass fibers and discharge spout thereof as well as flat glass fiber tow |
-
1999
- 1999-04-21 JP JP11331899A patent/JP3526235B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000302472A (en) | 2000-10-31 |
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