JPH0157053B2 - - Google Patents
Info
- Publication number
- JPH0157053B2 JPH0157053B2 JP5753485A JP5753485A JPH0157053B2 JP H0157053 B2 JPH0157053 B2 JP H0157053B2 JP 5753485 A JP5753485 A JP 5753485A JP 5753485 A JP5753485 A JP 5753485A JP H0157053 B2 JPH0157053 B2 JP H0157053B2
- Authority
- JP
- Japan
- Prior art keywords
- glass fiber
- nozzle
- molten glass
- section
- cross
- 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
Links
- 239000003365 glass fiber Substances 0.000 claims description 37
- 239000006060 molten glass Substances 0.000 claims description 31
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 238000007664 blowing Methods 0.000 claims description 12
- 238000009987 spinning Methods 0.000 claims description 10
- 239000000112 cooling gas Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 230000001788 irregular Effects 0.000 description 12
- 239000011521 glass Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 238000004804 winding Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
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)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は異形断面のガラス繊維の製造方法に関
する。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a method for manufacturing glass fibers with irregular cross sections.
従来の技術
一般に、ガラス繊維は溶融ガラスを円形断面の
多数のノズル孔を形成したブツシングから紡出し
て多数のフイラメントに形成し、これらのフイラ
メントをストランドに集束して巻取ることにより
製造されており、製造されたガラス繊維の各単糸
は円形の断面形状を有している。ガラス繊維の主
たる用途は、熱硬化性樹脂、熱可塑性樹脂などに
混入する補強材である。ガラス繊維の表面には一
般に処理剤を付着させ、ガラス―樹脂界面の接着
力を与えている。Conventional technology Generally, glass fiber is manufactured by spinning molten glass from a bushing with a large number of circular cross-section nozzle holes to form a large number of filaments, and then collecting and winding these filaments into a strand. , each filament of glass fiber produced has a circular cross-sectional shape. The main use of glass fiber is as a reinforcing material mixed into thermosetting resins, thermoplastic resins, etc. Generally, a treatment agent is attached to the surface of the glass fiber to provide adhesive strength at the glass-resin interface.
発明が解決しようとする問題点
近年、樹脂とガラス繊維とを含む複合材の強度
向上がますます望まれている。また、フイラメン
トワインデイング、プルトルージヨン、ロービン
グクロス、電絶クロス等の長繊維用途には薄いス
トランドが要求されるようになつてきた。Problems to be Solved by the Invention In recent years, it has been increasingly desired to improve the strength of composite materials containing resin and glass fiber. Additionally, thin strands are now required for long fiber applications such as filament winding, pultrusion, roving cloth, and electric insulation cloth.
本発明者等はかかる要望に鑑み種々検討の結
果、複合材、特に比較的短いチツプドストランド
を用いた複合材の強度向上には、ガラス繊維と樹
脂との間の界面接着力を強めることが重要であ
り、ガラス繊維と樹脂との間の接着力は、従来の
ような円形断面に代えて、長円形、楕円形等の非
円形断面即ち異形断面としたガラス繊維により向
上することを見出した。この原因は、異形断面の
ガラス繊維は円形断面に比べ、比表面積が大き
く、この為ガラス繊維と樹脂との間の全接着力が
大きくなり、補強効果が大きいものと考えられ
る。ところが、こような異形断面のガラス繊維は
極めて製造が困難である。即ち、前記したように
ガラス繊維製造には、溶融ガラスをノズル孔から
紡出して繊維化するが、この際、溶融ガラスは高
温度では粘度が低く表面張力が高い為に、例えば
ノズル孔断面を楕円形或いは長円形等の細長い形
状としても、ノズル孔から紡出されたガラスは直
ちに円形となつてしまい、楕円形、長円形等の異
形断面のガラス繊維が得られない。 The inventors of the present invention have conducted various studies in light of such requests, and have found that in order to improve the strength of composite materials, especially composite materials using relatively short chipped strands, it is necessary to strengthen the interfacial adhesion between glass fiber and resin. It has been found that the adhesive force between glass fiber and resin can be improved by using glass fiber with a non-circular cross-section such as an oval or elliptical cross-section, that is, an irregular cross-section, instead of the conventional circular cross-section. . The reason for this is thought to be that glass fibers with irregular cross sections have a larger specific surface area than those with circular cross sections, and therefore the total adhesive force between the glass fibers and the resin becomes larger, resulting in a greater reinforcing effect. However, glass fibers with such irregular cross sections are extremely difficult to manufacture. That is, as mentioned above, in the production of glass fiber, molten glass is spun out from a nozzle hole and made into fibers. At this time, since molten glass has low viscosity and high surface tension at high temperatures, for example, the cross section of the nozzle hole is Even if the glass has an elongated shape such as an ellipse or an oblong, the glass spun from the nozzle hole immediately becomes circular, making it impossible to obtain a glass fiber having an irregular cross section such as an oval or an oblong.
本発明はかかる問題点を解消せんとするもの
で、楕円形、長円形等の異形断面のガラス繊維を
製造する方法を提供することを目的とする
問題点を解決するための手段
上記目的を達成すべくなされた本発明は、溶融
ガラスを、断面における最大寸法と最小寸法との
比が1.5対１から６対１の間にある非円形断面の
孔形状をしたノズル孔から、常圧若しくは加圧下
で紡出させ、紡出された溶融ガラスに冷却用気体
を吹き付けることにより速やかに冷却することを
特徴とするものである。 The present invention aims to solve such problems, and aims to provide a method for producing glass fibers having irregular cross sections such as ellipsoids and ellipses. Means for solving the problems Achieving the above objects The present invention aims to process molten glass through a nozzle hole having a non-circular cross-sectional shape in which the ratio of the maximum dimension to the minimum dimension in the cross section is between 1.5:1 and 6:1 under normal pressure or under applied pressure. It is characterized by spinning under pressure and rapidly cooling the spun molten glass by blowing a cooling gas onto it.
以下、図面を参照して本発明を更に詳細に説明
する。第１図は本発明方法によるガラス繊維製造
装置を示す概略側面図、第２図はその要部の正面
図である。参照符号１は多数のノズル孔を備えた
ノズル板２を底部に持つブツシング、３は集束剤
塗布ローラー、４は集束ローラー、５は巻取装置
である。ブツシング１に供給された溶融ガラス７
はノズル板２の多数のノズル孔８から紡出されて
フイラメント９となり、集束剤を塗布された後、
集束ローラー４でストランド１０に集束され、巻
取装置５の巻取管１１上に巻取られる。 Hereinafter, the present invention will be explained in more detail with reference to the drawings. FIG. 1 is a schematic side view showing a glass fiber manufacturing apparatus according to the method of the present invention, and FIG. 2 is a front view of the main parts thereof. Reference numeral 1 is a bushing having a nozzle plate 2 provided with a large number of nozzle holes at the bottom, 3 is a sizing agent application roller, 4 is a focusing roller, and 5 is a winding device. Molten glass 7 supplied to bushing 1
is spun out from the numerous nozzle holes 8 of the nozzle plate 2 to become a filament 9, and after being coated with a sizing agent,
The strand 10 is collected by the collecting roller 4 and wound onto the winding tube 11 of the winding device 5.
かかるガラス繊維製造において、本発明ではノ
ズル板２に形成されているノズル孔８として、断
面形状が長円形、楕円形、長方形又は端部の形状
がいかなるものであれ本質的に長辺と短辺とから
なる非円形断面のものを用いる。ノズル板２とし
ては図面に示すように単に平板状のものに多数の
ノズル孔８を穿孔したものであつてもよく、又各
ノズル孔のところにノズル面より下方に突出する
突起（チツプ）を形成したものであつてもよい。
そのノズル板は使用する圧力（溶融ガラス紡出圧
力）に耐える強度を有することが必要である。使
用圧力については後述する。 In the production of such glass fiber, in the present invention, the nozzle hole 8 formed in the nozzle plate 2 essentially has a long side and a short side, regardless of the cross-sectional shape of the oval, ellipse, rectangle, or the shape of the end. Use one with a non-circular cross section consisting of As shown in the drawing, the nozzle plate 2 may be simply a flat plate with a large number of nozzle holes 8 bored therein, or each nozzle hole may have a protrusion (chip) projecting downward from the nozzle surface. It may be a formed one.
The nozzle plate needs to have strength to withstand the pressure used (molten glass spinning pressure). The working pressure will be described later.
ところで、前記したように、単に非円形断面の
ノズル孔８を用いて溶融ガラスを紡出し繊維化し
ても、紡出された非円形断面の溶融ガラスはその
表面張力により直ちに円形に戻り、結局所望の非
円形断面のガラスフイラメントは得られない。そ
こで、本発明ではノズル板２の下方に冷却用気体
（以下、冷風と略称する）を吹き出す冷風吹出装
置１４を配置し、冷風をノズル板２から紡出され
た溶融ガラスに吹き付け急冷することを特徴とす
る。非円形断面のノズル孔８から非円形断面で紡
出された溶融ガラスは、その表面張力により円形
断面になる傾向があるが、冷風により急冷すると
粘度が急激に増して固化し、その為表面張力によ
り円形に変形する作用が制限され、最終的に非円
形断面のガラス繊維を得られることが判明した。 By the way, as mentioned above, even if molten glass is simply spun into fibers using the nozzle hole 8 with a non-circular cross-section, the spun molten glass with a non-circular cross-section will immediately return to a circular shape due to its surface tension, and will eventually form the desired shape. A glass filament with a non-circular cross section cannot be obtained. Therefore, in the present invention, a cold air blowing device 14 that blows out cooling gas (hereinafter referred to as cold air) is arranged below the nozzle plate 2, and the cold air is blown onto the molten glass spun from the nozzle plate 2 to rapidly cool it. Features. Molten glass spun with a non-circular cross-section from the nozzle hole 8 with a non-circular cross-section tends to have a circular cross-section due to its surface tension, but when it is rapidly cooled by cold air, its viscosity increases rapidly and solidifies, so that the surface tension It was found that the effect of deforming into a circular shape was limited by this, and it was finally possible to obtain a glass fiber with a non-circular cross section.
ここで、冷却に用いる気体は空気、窒素等が用
いられるが、コスト次第では他の気体、例えば不
活性ガス等を用いることも当然である。冷風吹出
装置１４としては、図面では各ノズル孔８に対応
して設けた多数の冷風吹出パイプ１５を備えたも
のを示したが、この例に限定されず、単一の或い
は少数の大きい吹出口を備えたものであつてもよ
い。冷風の風量は0.05／min孔から３／min
孔に選定することが好ましい。風量0.05／min
孔以下では冷却効果において不足を生じ断面が円
形に近くなることがある。一方３／min孔以上
では気流によりガラス繊維の流れに乱れを生じ繊
維が絡まる等のトラブルを生じることがある。最
も好適な風量は0.2／min孔から１／min孔で
あつた。冷風の吹き付け方向は、ノズル面に対し
て並行から直角まで可能であるが、最も望ましい
のはノズル面に対して75度〜85度の角度でノズル
面に向かつて吹き付けるのが良い。これ以下の角
度で吹き付ける場合には、１方向からの吹き付け
はガラス繊維の流れに乱れを起こすことがあるの
で、相対する方向からバランスを取りながら吹き
付けるのが、好ましい。 Here, the gas used for cooling is air, nitrogen, etc., but depending on the cost, other gases, such as inert gas, etc. may of course be used. Although the cold air blowing device 14 is shown in the drawing as having a large number of cold air blowing pipes 15 provided corresponding to each nozzle hole 8, it is not limited to this example, and may include a single or a small number of large blowing ports. It may be equipped with the following. Cool air flow rate is 3/min from 0.05/min hole
It is preferable to select a hole. Air volume 0.05/min
Below the hole, the cooling effect may be insufficient and the cross section may become nearly circular. On the other hand, if the hole is 3/min or more, the flow of the glass fibers may be disturbed by the airflow, causing problems such as fibers getting tangled. The most suitable air flow rate was from 0.2/min hole to 1/min hole. The direction in which the cold air is blown can range from parallel to perpendicular to the nozzle surface, but it is most desirable to blow the cold air toward the nozzle surface at an angle of 75 degrees to 85 degrees. When spraying at an angle smaller than this, spraying from one direction may disrupt the flow of glass fibers, so it is preferable to spray from opposing directions while maintaining balance.
ノズル板２から溶融ガラスを紡出する際の溶融
ガラス圧力は、従来のように、単に溶融ガラスの
ヘツド圧のみによる常圧でも可能である。しかし
ながら、常圧では、冷風によるノズル板２の冷却
により紡出量の低下が生じる場合があり、これを
避けるにはガラス温度を高する必要がある。ガラ
ス温度を高くすると粘度が低下し、紡出後の溶融
ガラスが円形に戻る傾向が強くなるので、好まし
くない。そこで、ブツシング内の溶融ガラスを適
当な方法で加圧し、加圧下で溶融ガラスを押し出
すことが好ましい。このように溶融ガラスを加圧
下で押し出すことにより、溶融ガラスを粘度の高
い状態で押し出すことが可能となり、紡出された
ガラスが円形に変形する傾向を一層制限でき、よ
り異形性の高いガラス繊維が得られる。溶融ガラ
スに加える圧力は高い程、高粘度の溶融ガラスを
紡出することが可能となり、異形性維持の点から
は好ましいが、ブツシングの強度上の制限がある
ため、通常は８Kg／cm2以下が好ましい。 The pressure of the molten glass when spinning the molten glass from the nozzle plate 2 may be normal pressure based only on the head pressure of the molten glass, as in the conventional case. However, at normal pressure, the spinning amount may decrease due to cooling of the nozzle plate 2 by cold air, and in order to avoid this, it is necessary to increase the glass temperature. If the glass temperature is raised, the viscosity decreases and the molten glass after spinning has a strong tendency to return to a circular shape, which is not preferable. Therefore, it is preferable to pressurize the molten glass in the bushing by an appropriate method and extrude the molten glass under pressure. By extruding the molten glass under pressure in this way, it is possible to extrude the molten glass in a highly viscous state, which further limits the tendency of the spun glass to deform into a circular shape, resulting in glass fibers with a higher degree of deformation. is obtained. The higher the pressure applied to the molten glass, the more viscous the molten glass can be spun, which is preferable from the point of view of maintaining the deformation. However, due to limitations on the strength of the bushing, it is usually less than 8 kg/cm 2 is preferred.
常圧で溶融ガラスを非円形断面のノズル孔８か
ら紡出し、冷風を吹き付けて急冷した場合におい
て、ノズル孔断面における最大寸法（長径或いは
長辺の長さ）と最小寸法（短径或いは短辺の長
さ）との比（以下長短比という）とフイラメント
断面における長短比とには概略次の関係があるこ
とが判明した。即ち、ノズル孔の長短比が２対１
の時フイラメントの長短比が1.2対１位になり、
ノズル孔の長短比が６対１の時フイラメントの長
短比が２対１位になる。ノズル孔の長短比はこれ
以上としてもフイラメントの長短比は余り増加せ
ず、飽和状態となる。また、加圧下で溶融ガラス
を紡出する場合には、ノズル孔の長短比が1.5対
１の時フイラメントの長短比が1.2対１となり、
ノズル孔の長短比が６対１の時フイラメントの長
短比が３対１位となる。異形断面フイラメントの
長短比は、1.2対１程度よりも小さいと、異形断
面の効果が少ないので、好ましくない。従つて、
本発明に用いるノズル孔８の断面における長短比
は1.5対１から６対１の間に選定する。 When molten glass is spun at normal pressure through a nozzle hole 8 with a non-circular cross section and quenched by blowing cold air, the maximum dimension (length of the major axis or long side) and the minimum dimension (the length of the short axis or short side) in the cross section of the nozzle hole are It has been found that there is approximately the following relationship between the ratio of the length of the filament (hereinafter referred to as the length ratio) and the length ratio of the filament cross section. That is, the length ratio of the nozzle hole is 2:1.
When , the length ratio of the filament is 1.2:1,
When the length ratio of the nozzle hole is 6:1, the length ratio of the filament is 2:1. Even if the length ratio of the nozzle hole is greater than this, the length ratio of the filament does not increase much and becomes saturated. In addition, when spinning molten glass under pressure, when the length ratio of the nozzle hole is 1.5:1, the length ratio of the filament is 1.2:1,
When the length ratio of the nozzle hole is 6:1, the length ratio of the filament is 3:1. If the length ratio of the irregular cross-section filament is smaller than about 1.2:1, the effect of the irregular cross-section will be less, which is not preferable. Therefore,
The length ratio in the cross section of the nozzle hole 8 used in the present invention is selected between 1.5:1 and 6:1.
上記した異形断面のノゾル孔から紡出されて形
成された多数の偏平フイラメントはストランドに
集束され、巻取装置に巻取られるが、その途中に
おいて集束剤塗布ローラーやガイド上を走行する
さい、各フイラメントが同方向に並び、そのため
従来の円形断面のフイラメントを集束したストラ
ンドに比べて、ストランド幅の広い偏平な糸が得
られる。 A large number of flat filaments formed by spinning from the above-mentioned nozzle holes with irregular cross-sections are collected into a strand and wound up on a winding device, but during this process, as they run on a sizing agent application roller and a guide, each The filaments are aligned in the same direction, resulting in a flat yarn with a wider strand width than conventional strands made of circular cross-section filaments.
かくして得られたストランドをFRTPのチヨツ
プドストランドとして使用した所、引張り強さが
10〜15％向上した。また、このストランドを織物
に使用した場合は従来の２／３位の厚さにするこ
とが可能であつた。 When the strand thus obtained was used as a chopped strand for FRTP, the tensile strength was
Improved by 10-15%. Furthermore, when this strand was used for textiles, it was possible to reduce the thickness to about 2/3 of the conventional thickness.
実施例
第１表に示す形状、寸法のノズル孔を有するノ
ズル板（厚さ1.5mm）を用いてガラス繊維製造を
行つたところ、第１表に示す寸法を有し、且つ第
３図に示す異形断面のガラス繊維の製造が可能で
あつた。Example When glass fiber was manufactured using a nozzle plate (thickness 1.5 mm) having nozzle holes having the shape and dimensions shown in Table 1, the results showed that the glass fiber had the dimensions shown in Table 1 and as shown in Figure 3. It was possible to manufacture glass fibers with irregular cross sections.
第１表
ノズル孔形状 長方形
ノズル長辺 2.5mm
ノズル短辺 1.1mm
ノズル長短比 2.28対１
溶融ガラス温度 1260℃
紡出圧力 常圧
冷風量 １／min孔
吹き付け角度 75度
冷風吹出パイプ径 ２mm
フイラメント長径 40.0μ
フイラメント短径 30.0μ
フイラメント長短比 1.33対１
発明の効果
以上に説明した如く、本発明方法によれば、異
形断面のノズル孔から紡出した溶融ガラスに冷風
を吹き付けて急冷、固化するものであるので、紡
出された溶融ガラスが円形に変形するのを制限
し、楕円形、長円形等の異形断面を有するガラス
繊維を製造することが可能である。かくして製造
された異形断面のガラス繊維は従来の円形断面の
ガラス繊維に比べ比表面積が増加しており、複合
材の補強材として使用した時樹脂に対する接着力
が大きく、複合材の強度を向上させることができ
る。また、このガラス繊維から幅広の薄いストラ
ンドを得ることができ、このストランドを用いて
薄い織物を製造できる利点をも有している。 Table 1 Nozzle hole shape Rectangular nozzle long side 2.5mm Nozzle short side 1.1mm Nozzle length ratio 2.28:1 Molten glass temperature 1260℃ Spinning pressure Normal pressure cold air flow 1/min Hole blowing angle 75 degrees Cold air blowing pipe diameter 2mm Filament long diameter 40.0μ Filament minor diameter 30.0μ Filament length ratio 1.33:1 Effects of the invention As explained above, according to the method of the present invention, molten glass spun from a nozzle hole with an irregular cross section is rapidly cooled and solidified by blowing cold air onto it. Therefore, it is possible to restrict the deformation of the spun molten glass into a circular shape and to produce glass fibers having irregularly shaped cross sections such as ellipsoids and ellipses. The glass fibers with irregular cross-sections produced in this way have an increased specific surface area compared to conventional glass fibers with circular cross-sections, and when used as reinforcing materials for composite materials, they have greater adhesion to resin and improve the strength of composite materials. be able to. Further, it has the advantage that wide and thin strands can be obtained from this glass fiber, and thin woven fabrics can be manufactured using these strands.
第１図は本発明方法を実施するガラス繊維製造
装置を示す概略側面図、第２図はその要部の正面
図、第３図は本発明方法により製造したガラス繊
維の断面顕微鏡写真を基に作成した断面図であ
る。
１…ブツシング、２…ノズル板、３…集束剤塗
布ローラー、４…集束ローラー、５…巻取装置、
７…溶融ガラス、８…ノズル孔、９…フイラメン
ト、１０…ストランド、１４…冷風吹出装置、１
５…冷風吹出パイプ。
Fig. 1 is a schematic side view showing a glass fiber manufacturing apparatus that carries out the method of the present invention, Fig. 2 is a front view of the main parts thereof, and Fig. 3 is based on a cross-sectional micrograph of the glass fiber manufactured by the method of the present invention. It is a created cross-sectional view. DESCRIPTION OF SYMBOLS 1... Bushing, 2... Nozzle plate, 3... Sizing agent application roller, 4... Focusing roller, 5... Winding device,
7... Molten glass, 8... Nozzle hole, 9... Filament, 10... Strand, 14... Cold air blowing device, 1
5...Cold air blowing pipe.
Claims (1)
寸法との比が1.5対１から６対１の間にある非円
形断面の孔形状をしたノズル孔から、常圧若しく
は加圧下で紡出させ、紡出された溶融ガラスに冷
却用気体を吹き付けることにより速やかに冷却す
ることを特徴とするガラス繊維の製造方法。 ２ 前記冷却用気体を、ノズル孔の下方からノズ
ル面に向けて吹き付けることを特徴とする特許請
求の範囲第１項記載のガラス繊維の製造方法。 ３ 前記冷却用気体をノズル面に対して75〜85度
の角度で吹き付けることを特徴とする特許請求の
範囲第１項又は第２項記載のガラス繊維の製造方
法。 ４ 前記冷却用気体の風量が0.05／min孔から
３／min孔であることを特徴とする特許請求の
範囲第１項から第３項のいずれか１項に記載のガ
ラス繊維の製造方法。 ５ 前記冷却用気体が空気若しくは窒素であるこ
とを特徴とする特許請求の範囲第１項から第４項
のいずれか１項に記載のガラス繊維の製造方法。 ６ 前記ノズル孔の断面形状が長円形であること
を特徴とする特許請求の範囲第１項から第５項の
いずれか１項に記載のガラス繊維の製造方法。 ７ 前記ノズルの断面形状が長方形であることを
特徴とする特許請求の範囲第１項から第５項のい
ずれか１項に記載のガラス繊維の製造方法。[Scope of Claims] 1. Molten glass is passed through a nozzle hole having a non-circular cross-section in which the ratio of the maximum dimension to the minimum dimension in the cross section is between 1.5:1 and 6:1 under normal pressure or pressurization. 1. A method for producing glass fiber, which comprises spinning the molten glass with a cooling gas and rapidly cooling the spun molten glass by blowing a cooling gas onto the spun molten glass. 2. The method for manufacturing glass fiber according to claim 1, characterized in that the cooling gas is blown toward the nozzle surface from below the nozzle hole. 3. The method for manufacturing glass fiber according to claim 1 or 2, characterized in that the cooling gas is blown at an angle of 75 to 85 degrees with respect to the nozzle surface. 4. The method for manufacturing glass fiber according to any one of claims 1 to 3, wherein the air flow rate of the cooling gas is from 0.05/min hole to 3/min hole. 5. The method for manufacturing glass fiber according to any one of claims 1 to 4, wherein the cooling gas is air or nitrogen. 6. The method for producing glass fiber according to any one of claims 1 to 5, wherein the nozzle hole has an oval cross-sectional shape. 7. The method for manufacturing glass fiber according to any one of claims 1 to 5, wherein the nozzle has a rectangular cross-sectional shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5753485A JPS61219731A (en) | 1985-03-23 | 1985-03-23 | Production of glass fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5753485A JPS61219731A (en) | 1985-03-23 | 1985-03-23 | Production of glass fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61219731A JPS61219731A (en) | 1986-09-30 |
| JPH0157053B2 true JPH0157053B2 (en) | 1989-12-04 |
Family
ID=13058416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5753485A Granted JPS61219731A (en) | 1985-03-23 | 1985-03-23 | Production of glass fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61219731A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0617244B2 (en) * | 1986-02-14 | 1994-03-09 | オ−ウエンズ−コ−ニング・フアイバ−グラス・コ−ポレイシヨン | Method and apparatus for producing mineral fibers having non-circular cross section |
| JP2919885B2 (en) * | 1989-12-13 | 1999-07-19 | ポリプラスチックス株式会社 | Vibration-damping polyalkylene terephthalate resin composition and molded article thereof |
| JP2919892B2 (en) * | 1990-01-24 | 1999-07-19 | ポリプラスチックス株式会社 | Vibration damping polyester resin composition and molded article thereof |
| JP2925636B2 (en) * | 1990-03-12 | 1999-07-28 | ポリプラスチックス株式会社 | Vibration damping polyester resin composition and molded article thereof |
| IT1265070B1 (en) * | 1993-05-18 | 1996-10-30 | Eniricerche Spa | FLEXIBLE THERMOPLASTIC COMPOSITE FILAMENT CONTAINING CONTINUOUS FIBERS AND PROCEDURE FOR ITS PREPARATION |
| JP4365193B2 (en) * | 2003-11-27 | 2009-11-18 | オーウェンスコーニング製造株式会社 | Glass strand manufacturing equipment |
| CN109153794B (en) * | 2016-05-27 | 2021-04-09 | 三菱瓦斯化学株式会社 | Material and molded article |
-
1985
- 1985-03-23 JP JP5753485A patent/JPS61219731A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61219731A (en) | 1986-09-30 |
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| LAPS | Cancellation because of no payment of annual fees |