JPS6096540A - Manufacture of bushing plate - Google Patents

Manufacture of bushing plate

Info

Publication number
JPS6096540A
JPS6096540A JP20045283A JP20045283A JPS6096540A JP S6096540 A JPS6096540 A JP S6096540A JP 20045283 A JP20045283 A JP 20045283A JP 20045283 A JP20045283 A JP 20045283A JP S6096540 A JPS6096540 A JP S6096540A
Authority
JP
Japan
Prior art keywords
nozzle
tip
bushing plate
bushing
plate
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.)
Granted
Application number
JP20045283A
Other languages
Japanese (ja)
Other versions
JPH0333664B2 (en
Inventor
Akio Shiono
塩野　昭夫
Minoru Isaji
伊佐治　実
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tanaka Kikinzoku Kogyo KK
Original Assignee
Tanaka Kikinzoku Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tanaka Kikinzoku Kogyo KK filed Critical Tanaka Kikinzoku Kogyo KK
Priority to JP20045283A priority Critical patent/JPS6096540A/en
Publication of JPS6096540A publication Critical patent/JPS6096540A/en
Publication of JPH0333664B2 publication Critical patent/JPH0333664B2/ja
Granted legal-status Critical Current

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
    • C03B37/0805—Manufacturing, repairing, or other treatment of bushings, nozzles or bushing nozzle plates
    • 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)

Abstract

PURPOSE:To provide a bushing plate without causing the deformation and cracking of the nozzle hole, by protruding plural circular protrusions to a plate material, boring the nozzle holes to the protrusions from backside, and reducing the thickness of the nozzle wall by the electrical discharge machining of the outer circumfrence of the tip of the protruded nozzles. CONSTITUTION:A number of circular protrusions 2 are attached to the bushing palte material 1 made mainly of platinum. Each protrusion 2 is bored concentrically with a nozzle hole 3 from the backside of the plate e.g. by the extrusion machining with a punch, etc. to obtain a nozzle 4. The outer circumference of the tip of the nozzle 4 is subjected to the electrical discharge machining with an electrode having a number of circular cavities. The thickness of the nozzle wall is reduced and the tip of the nozzle is sharpened by this machining process. Molten glass can be extruded through the nozzle 4 of the bushing plate 5 without causing the damage of the nozzle by the pressure of the molten glass. Furthermore, since the wetting and spreading of the glass at the tip of the nozzle is limited, a thin glass fiber having high dimensional accuracy can be manufactured.

Description

【発明の詳細な説明】 本発明は、グラスファイバー又は連続した硝子フィラメ
ント等のガラス繊維を製造するのに用いる溶融ガラス充
填ボックス又はブッシングのノズル穴を有するベースプ
レート、所謂ブッシングプレートを作る方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of making a base plate, a so-called bushing plate, with nozzle holes of a molten glass filled box or bushing used for producing glass fibers, such as glass fibers or continuous glass filaments.

従来のブッシングプレートは、第１図に示す如くブッシ
ングプレート材料ｌに多数の円形突起２が突設され、こ
の円形突起２にノズル穴３が穿設されて、ノズル４が形
成されて成るものである。As shown in FIG. 1, a conventional bushing plate has a bushing plate material 1 with a number of circular protrusions 2 protruding from it, and nozzle holes 3 are formed in these circular protrusions 2 to form nozzles 4. be.

斯かるブッシングプレート５は、ノズル４の肉厚が厚い
ので、これから吐出される溶融ガラスが先端面で濡れ広
がり、紡糸されるグラスフプイノく−等の糸の太さが大
きく且つばらつきがあって、寸法精度が悪かった。In such a bushing plate 5, since the nozzle 4 has a thick wall, the molten glass discharged from the nozzle spreads wetly on the tip surface, and the thickness of the spun glass fiber yarn is large and uneven, resulting in Accuracy was poor.

この為、ノズル４の肉厚を薄くすることが行われている
が、ノズル４の外周を機械加工して０．３關以下に肉厚
を薄くすると、ノズル穴３が変形し易いものである。ま
たプレス加工等により円形突起２を突設した後、パンチ
の打ち込みにより円形突起２にノズル穴３を穿設し、肉
厚０．３ｍｍ以下の薄いノズル４を形成した場合には、
ノズル４の先端部に変形やクランクが生じ易いものであ
る。For this reason, attempts have been made to reduce the wall thickness of the nozzle 4, but if the outer periphery of the nozzle 4 is machined to reduce the wall thickness to 0.3 degrees or less, the nozzle hole 3 is likely to deform. . Further, when a circular protrusion 2 is protruded by pressing, etc., and a nozzle hole 3 is punched into the circular protrusion 2 to form a thin nozzle 4 with a wall thickness of 0.3 mm or less,
The tip of the nozzle 4 is likely to be deformed or cranked.

本発明は斯かる問題を解消すべくなれれたものであり、
ノズル穴を変形させたり、ノズル穴にタラワクを生じさ
せたりすることなくノズル先端部の肉厚を薄くすること
のできるブッシングプレートの製造方法を提供すること
を目的とするものである。The present invention has been developed to solve such problems,
It is an object of the present invention to provide a method for manufacturing a bushing plate that can reduce the thickness of a nozzle tip without deforming the nozzle hole or causing warping in the nozzle hole.

本発明のブッシングプレートの製造方法は、第２図ａに
示す如く白金を主成分とするブ・ノシングプレート相料
ｌに多数の円形突起２を配列突設し、次に第２図すに示
す如く円形突起２の裏側からパンチ打込みによる押出し
加工によりノズル穴３を同心に穿設してノズル４を形成
し、次いでノズル４の先端部外周を第２図Ｃに示す如く
多数の円形の穴６を設けた電極７にて放電加工して肉厚
を薄くし、先端部を細くするものである。The manufacturing method of the bushing plate of the present invention is as shown in FIG. As shown, a nozzle hole 3 is formed concentrically from the back side of the circular protrusion 2 by extrusion processing by punching to form a nozzle 4, and then the outer periphery of the tip of the nozzle 4 is formed with a large number of circular holes as shown in FIG. 2C. Electrode machining is performed using an electrode 7 provided with a diameter 6 to reduce the wall thickness and make the tip portion thinner.

尚、ブッシングプレート材料１に多数の円形突起２を配
列突設するには、ブッシングプレート材料１を型台に載
せてプレス加工や圧延加工によって行うか、又は切削加
工によって行い、円形突起２に同心にノズル穴３を穿設
するには、切削加工によって行うか又は押出加工によっ
て行うものである。Note that in order to arrange and protrude a large number of circular protrusions 2 on the bushing plate material 1, the bushing plate material 1 is placed on a mold table and pressed or rolled, or by cutting. The nozzle hole 3 is formed by cutting or extrusion.

上記のように本発明のブッシングプレートの製造方法で
は、ノズル４の先端部外周を放電加工して肉厚を薄くし
、先端部を細くするのであるから肉厚０．３１以下のノ
ズル４でも容易に得られ、ノズル４の先端部に変形やク
ラック等を発生させることが無い。従って、このブッシ
ングプレート５のノズル４から溶融ガラスを吐出すると
溶融ガラスの圧力によりノズル４が破損することが無く
、また先端面での濡れ広がりが小さく、紡糸されるグラ
スファイバー等の糸の太さが細（、且つばらつきが殆ん
ど無いので、寸法精度の高いものが得られる等の効果を
奏する。As described above, in the bushing plate manufacturing method of the present invention, the outer periphery of the tip of the nozzle 4 is subjected to electrical discharge machining to reduce the wall thickness and make the tip thinner, so it is easy to use the nozzle 4 with a wall thickness of 0.31 or less. The tip of the nozzle 4 will not be deformed or cracked. Therefore, when molten glass is discharged from the nozzle 4 of this bushing plate 5, the nozzle 4 is not damaged by the pressure of the molten glass, and the spread of wetting at the tip is small, and the thickness of the spun glass fiber etc. Since the diameter is thin (and there is almost no variation), it is possible to obtain products with high dimensional accuracy.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のブッシングプレートの要部断面図、第２
図ａ’、ｂ、ｃは本発明のブッシングプレートの製造方
法の工程を示す図である。 １−−−−−−ブッシングプレート材料、２−一−−・
−円形突起、３・−一−−−ノズル穴、４−−−−−−
ノズル、５−−−−−ブッシングプレート、６−−−−
−−円形の穴、７−−−−−一電極。 出願人　田中貴金属工業株式会社Figure 1 is a sectional view of the main parts of a conventional bushing plate, Figure 2
Figures a', b, and c are diagrams showing the steps of the method for manufacturing a bushing plate of the present invention. 1---Bushing plate material, 2-1---・
-Circular protrusion, 3・-1---Nozzle hole, 4------
Nozzle, 5---Bushing plate, 6------
--Circular hole, 7---One electrode. Applicant Tanaka Kikinzoku Kogyo Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] ブッシングプレー）４４料に多数の円形突起を配列突設
し、次に円形突起の裏側からノズル穴を同心に穿設して
ノズルを形成し、次いでノズルの先端部外周を放電加工
して肉厚を薄くすることを特徴とするブッシングプレー
トの製造方法。Bushing plate) A large number of circular protrusions are arranged and protruded from the 44 material, and then nozzle holes are drilled concentrically from the back side of the circular protrusions to form a nozzle.Then, the outer periphery of the tip of the nozzle is subjected to electric discharge machining to thicken the wall. A method for manufacturing a bushing plate characterized by making it thin.
JP20045283A 1983-10-26 1983-10-26 Manufacture of bushing plate Granted JPS6096540A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20045283A JPS6096540A (en) 1983-10-26 1983-10-26 Manufacture of bushing plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20045283A JPS6096540A (en) 1983-10-26 1983-10-26 Manufacture of bushing plate

Publications (2)

Publication Number Publication Date
JPS6096540A true JPS6096540A (en) 1985-05-30
JPH0333664B2 JPH0333664B2 (en) 1991-05-17

Family

ID=16424534

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20045283A Granted JPS6096540A (en) 1983-10-26 1983-10-26 Manufacture of bushing plate

Country Status (1)

Country Link
JP (1) JPS6096540A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62265142A (en) * 1986-05-13 1987-11-18 Tanaka Kikinzoku Kogyo Kk Production of bushing for spinning irregular shaped glass fiber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62265142A (en) * 1986-05-13 1987-11-18 Tanaka Kikinzoku Kogyo Kk Production of bushing for spinning irregular shaped glass fiber
JPH0572338B2 (en) * 1986-05-13 1993-10-12 Tanaka Precious Metal Ind

Also Published As

Publication number Publication date
JPH0333664B2 (en) 1991-05-17

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