JPS6235981B2 - - Google Patents
Info
- Publication number
- JPS6235981B2 JPS6235981B2 JP5698480A JP5698480A JPS6235981B2 JP S6235981 B2 JPS6235981 B2 JP S6235981B2 JP 5698480 A JP5698480 A JP 5698480A JP 5698480 A JP5698480 A JP 5698480A JP S6235981 B2 JPS6235981 B2 JP S6235981B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- slit
- nozzle hole
- pressure air
- thread
- 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
- 239000000835 fiber Substances 0.000 claims description 48
- 238000009987 spinning Methods 0.000 claims description 22
- 239000012784 inorganic fiber Substances 0.000 claims description 21
- 230000001133 acceleration Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 2
- 238000009751 slip forming Methods 0.000 claims 1
- 239000003365 glass fiber Substances 0.000 description 17
- 239000006060 molten glass Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 210000002268 wool Anatomy 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
- C03B37/03—Drawing means, e.g. drawing drums ; Traction or tensioning devices
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)
- Inorganic Fibers (AREA)
Description
本発明は、高速気流を利用してガラス、岩綿等
の溶融無機質繊維原料から連続した無機質繊維を
紡糸する方法並びに装置に関する。
従来の溶融繊維原料から繊維を製造する方法と
しては火焔法、遠心法、高速回転法などがあり、
無機質繊維に対しては火焔法が一般的である。こ
の火焔法は石油燃料を使用しバーナなどによる高
速の火焔でもつて溶融無機質原料例えば溶融ガラ
スを吹き飛ばして微細化したガラス繊維をつくる
ものであつた。この方法は火焔吹き飛ばしによる
ため長尺繊維が得られず、また大量の石油燃料を
使用するため特に最近の石油事情等に鑑み生産性
が悪いものであつた。そこで石油を使用しないも
つと生産性の高い製法が望まれ、最近になつてジ
エツト気流を利用した高速繊維紡糸法が研究され
ている。溶融ポリマーを紡糸した有機質繊維に関
しては、例えば「エアージエツトノズルによる高
速紡糸について」（繊維学会誌、Vol30、No.２、
1974）に報告されている。しかしながら無機質繊
維に関しては上記方法によつても充分な生産性が
得られずその工業化をみるに至つていない。
本発明者は、以上の実状に鑑み高速気流を利用
する無機質繊維の製造に関し、その生産性の向上
と長繊維化につき研究を重ね、所要長の導糸管、
該導糸管に接続連通する所要長の加速管および両
管の接続部において高圧空気の噴出が加速管中心
に収斂するようになされた高圧空気噴出用の截頭
円錐状スリツトからなる特殊な組合わせを用いる
ことが極めて良好な結果をもたらすことを知見し
本発明の完成をみるに至つたものである。
すなわち本発明による長尺無機質繊維の紡糸方
法は、溶融炉の底部に設けたノズル孔から溶融し
た無機質繊維原料を糸状に流下させ、その固化繊
維部分を前記ノズル孔の下方に垂直に配置した導
糸管の上部開口から導入し、該導糸管の下部開口
外周面に形成される倒立截頭円錐状のスリツトか
ら前記導糸管に接続連通する加速管中に高圧空気
を管中心に収斂する如く噴出せしめ、前記導糸管
および加速管中に導かれる前記固化繊維部分にこ
れら管中に起生される高速気流に基づく引張力を
作用せしめることにより無機質繊維を連続的に紡
出することを特徴とするものであり、また上記方
法を実施するための紡糸装置は、無機質繊維原料
を溶融し、該溶融原料を糸状に流下させるための
ノズル孔を備えた溶融炉と、前記ノズル孔から流
下する溶融原料の固化繊維部分を導入する上部開
口を有しノズル孔の下方に垂直に配置された導糸
管と、該導糸管の下部開口外周面との間に倒立截
頭円錐状のスリツトを形成せしめかつ該スリツト
を通して高圧空気を噴出せしめるための高圧空気
室と、前記導糸管の下部に接続連通するとともに
前記スリツトからの高速空気の噴出が管中心に収
斂するようになされた加速音とからなり、前記導
糸管および加速管中に導かれる前記固化繊維部分
にこれら管中に起生される高速気流に基づく引張
力を作用せしめることにより無機質繊維を連続的
に紡出するようにしたことを特徴とするものであ
る。
本発明においては、溶融炉底部のノズル孔から
糸状に流下する溶融無機質繊維原料の固化繊維部
分が導糸管および加速管中に導入通過せしめられ
る際に、導糸管および加速管中に起生される高速
気流に基づく引張力作用を受けて高速かつ連続的
に引出され、しかも導糸管および加速管とは非接
触状態で安定的に維持されるので機械的な無理が
加わらず、したがつて製造過程における切断が少
なく連続せる無機質繊維が得られる。また流下す
る溶融原料の固化繊維部分を導糸管に導入するよ
うにしている関係上、ノズル孔の数をふやして１
本の導糸管に１本乃至数10本の固化繊維部を導入
することができる。このように導入する繊維数が
複数本の場合でも繊維相互がからみ合うことなく
円滑安定した紡出が行なわれ生産性を一層向上す
ることができた。
以下本発明を連続せるガラス繊維を製造する実
施例について図面を参照の上詳細に説明する。
第１図において、１は原料ガラスの溶融炉であ
り、例えばソーダ、石灰ガラスの場合は1100℃乃
至1400℃の溶融ガラスが貯溜される。溶融炉１の
炉底に設けられたノズルプレート２に設けたノズ
ル孔３を貯溜溶融ガラスにまで通ずると該ノズル
孔３から重力作用により溶融ガラスが糸状に流下
する。ノズル孔３の直径は１mm乃至６mmで孔径の
大きさにより流下する溶融ガラスはノズル孔３の
下方30mm乃至60mmで固化繊維部分となり、該部分
をノズル孔３の下方に適当な距離例えば200mm乃
至1000mm隔てて垂直に配置された内径２mm乃至４
mm、長さ150mm乃至1300mmの導糸管４中へその上
部開口５から導入する。導糸管が短い場合は吸引
力が弱く、又長すぎる場合は空気及び繊維が管内
を通過する際に生じる管内抵抗が増加し、吸引力
も弱くなるため好ましいことではない。
第２図に示すように導糸管４の下部には開口６
を有し導糸管の一部をなす口金７が取付けられて
おり開口６の外周面は倒立截頭円錐状をなしてい
る。導糸管４の下部および口金７を包囲して倒立
円錐状の下部内面を有する高圧空気室本体８およ
び該本体８に取付けられる密封蓋９からなる高圧
空気室１０が配設され、前記口金７の開口６外周
面と前記本体８下部内面とによつて倒立截頭円錐
状のスリツト１１を形成している。
前記口金７は本体８の円筒内部に螺合装着され
ており、口金７を回動することにより前記スリツ
ト１１のスリツト幅を任意に調節設定することが
できる。スリツト１１の垂直線に対する傾斜角は
15゜乃至30゜にとり、またスリツト１１のスリツ
ト幅は0.2mm乃至1.5mm、特に好ましくは0.2mm乃至
0.5mmにとるのが適当である。
高圧空気室１０にはコンプレツサー１２、圧気
溜１３等を介して除塵・除油されたた圧力３Kg／
cm2乃至７Kg／cm2の高圧空気が供給されるように構
成されている。また前記導糸管４の下部開口６に
接続連通する加速管１４が設けられる。該加速管
１４は前記本体８の下方部分とこれに螺合取付け
られた管部材１５によつて構成されている。該加
速管１４の長さは導入される固化ガラス繊維部分
に適正な引張力を作用せしめるのにきわめて重要
な意味をもつものであり、前記スリツト１１の傾
斜角にもよるが、開口６から40mm乃至150mmの範
囲に選定される。加速管１４の内径は導糸管の内
径に略々等しいか僅かに大きめ（３mm乃至５mm）
にするのがよく、これらの管は互いに連通しその
最上端と最下端は共に大気中に開放している。加
速管は直管又は下端が広径の異径管やラツパ管形
状のものが好ましい。
高圧空気室１０から倒立截頭円錐状のスリツト
１１を通して高圧空気が40／min乃至500／
minの容量をもつて噴出されるが、該噴出は加速
管１４の中心に収斂し加速管１４中に導かれた固
化ガラス繊維に対し下方への引張力を及ぼす。こ
れと同時に導糸管４に対してはエジエクタ効果を
及ぼして負圧を生ぜしめ導糸管４中においても高
速気流を起生する。加速管が短かすぎる場合には
加速管中の高速気流部分が短かくなることに起因
すると推定されるが固化ガラス繊維に対する引張
り効果がかえつて低下し、また長すぎる場合には
管抵抗が大となつて内圧が高まり導糸管内を負圧
にする効果が得られず長尺のガラス繊維の連続的
な製造に支障をきたすので加速管の長さは適正な
値に選定しなければならない。
以上説明した構成の本発明によれば、連通接続
部において倒立截頭円錐状のスリツト１１を設け
た導糸管４および加速管１４を備え、前記スリツ
ト１１から加速管中心に収斂する如く高圧空気を
噴出せしめることにより導糸管４および加速管１
４中に導かれる固化ガラス繊維部分にこれら管中
に起生される高速気流に基づく引張力を作用せし
め、これにより流下ガラスは延伸されながら引き
出されて繊維径が３μｍ乃至25μｍのガラス繊維
を安定した状態で連続的に紡出することができ
る。このような安定したガラス繊維の紡出は、一
般に管中の気流が中心部ほど速く管壁近傍に比較
して圧力が相対的に低いため導糸管および加速管
内でのガラス繊維は管の中心部に維持され管壁に
接触することなく管中のガラス繊維全長にわたり
高速気流に基づく引張力が作用することによるも
のであり、本発明により始めて従来法によつては
得られない連続せるガラス繊維を得ることができ
たのである。
実施例 １
第１図に示す紡糸装置において導糸管１本に付
き１本の固化繊維を導入し加速管長l2＝60mm、ノ
ズル孔から導糸管上部開口までの距離l3＝1000mm
とし、導糸管内径d1＝２mm、加速管内径d2＝３
mm、倒立截頭円錐状スリツト傾斜角α＝20゜、ス
リツト幅Ｗ＝0.5mm、空気圧Ｐ＝５Kg／cm2、ノズ
ル孔径d3＝３mm、溶融ガラス温度ｔ＝1300℃とし
て導糸管長l1を300mmから1000mmとした場合に導
糸管長l1に対する紡糸速度ｍ／min、紡糸量ｇ／
Hr（導糸管１本当り）、繊維径μｍは第１表に示
すとおりであつた。
The present invention relates to a method and apparatus for spinning continuous inorganic fibers from molten inorganic fiber materials such as glass and rock wool using high-speed airflow. Conventional methods for manufacturing fiber from molten fiber raw materials include the flame method, centrifugal method, and high-speed rotation method.
The flame method is common for inorganic fibers. This flame method uses petroleum fuel and uses a high-speed flame from a burner to blow away molten inorganic materials, such as molten glass, to produce fine glass fibers. Since this method uses flame blowing, long fibers cannot be obtained, and since a large amount of petroleum fuel is used, productivity is poor, especially in view of the recent petroleum situation. Therefore, a highly productive manufacturing method that does not use petroleum is desired, and recently research has been carried out on high-speed fiber spinning methods that utilize jet airflow. Regarding organic fibers spun from molten polymers, see, for example, "About high-speed spinning using air jet nozzles" (Journal of the Japan Institute of Textile Technology, Vol. 30, No. 2,
1974). However, with regard to inorganic fibers, sufficient productivity cannot be obtained even by the above-mentioned method, and its industrialization has not yet been achieved. In view of the above-mentioned circumstances, the present inventor has conducted repeated research on improving the productivity and making long fibers in the production of inorganic fibers using high-speed airflow, and has conducted research on the production of inorganic fibers using high-speed airflow,
A special set consisting of an accelerator tube of a required length that connects and communicates with the guide tube, and a truncated conical slit for ejecting high-pressure air so that the ejected high-pressure air converges at the center of the accelerating tube at the connection between the two tubes. The present invention has been completed based on the discovery that the use of a combination of the above-mentioned methods yields extremely good results. That is, in the method for spinning long inorganic fibers according to the present invention, a molten inorganic fiber raw material is made to flow down in the form of a thread from a nozzle hole provided at the bottom of a melting furnace, and the solidified fiber portion is placed vertically below the nozzle hole. High-pressure air is introduced from the upper opening of the yarn tube and is converged at the center of the acceleration tube, which is connected and communicated with the yarn tube through an inverted truncated conical slit formed on the outer peripheral surface of the lower opening of the yarn tube. The inorganic fibers are continuously spun by applying a tensile force based on the high-speed airflow generated in these pipes to the solidified fiber portion guided into the filament pipe and the acceleration pipe. A spinning apparatus for carrying out the above method includes a melting furnace equipped with a nozzle hole for melting an inorganic fiber raw material and causing the molten raw material to flow down in the form of a thread; An inverted truncated cone-shaped slit is formed between an upper opening into which the solidified fiber portion of the molten raw material is introduced, and which is arranged vertically below the nozzle hole, and the outer peripheral surface of the lower opening of the yarn guiding tube. a high-pressure air chamber for forming a high-pressure air chamber and ejecting high-pressure air through the slit; and an acceleration sound connected to and communicating with the lower part of the thread guide tube so that the high-speed air ejected from the slit converges at the center of the tube. and continuously spinning inorganic fibers by applying a tensile force based on high-speed airflow generated in these pipes to the solidified fiber portion guided into the fiber guide pipe and the acceleration pipe. It is characterized by the fact that In the present invention, when the solidified fiber portion of the molten inorganic fiber raw material flowing down in the form of a thread from the nozzle hole at the bottom of the melting furnace is introduced and passed through the guide pipe and the acceleration pipe, The fibers are pulled out continuously at high speed under the action of tensile force based on the high-speed airflow generated by the fibers, and are maintained stably without contact with the fiber guide tube and accelerator tube, so no mechanical stress is applied. As a result, inorganic fibers can be obtained that can be continuous with less cutting during the manufacturing process. In addition, in order to introduce the solidified fiber portion of the flowing molten raw material into the fiber guide pipe, the number of nozzle holes was increased to 1.
One to several tens of solidified fibers can be introduced into a single fiber pipe. Even when a plurality of fibers were introduced in this manner, smooth and stable spinning could be performed without the fibers intertwining with each other, and productivity could be further improved. Examples of manufacturing continuous glass fibers according to the present invention will be described in detail below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a melting furnace for raw glass, and in the case of soda or lime glass, for example, molten glass at 1100°C to 1400°C is stored. When a nozzle hole 3 provided in a nozzle plate 2 provided at the bottom of the melting furnace 1 is passed through to the stored molten glass, the molten glass flows down from the nozzle hole 3 in the form of a thread due to the action of gravity. The diameter of the nozzle hole 3 is 1 mm to 6 mm, and depending on the size of the hole diameter, the flowing molten glass becomes a solidified fiber part 30 mm to 60 mm below the nozzle hole 3, and the part is moved an appropriate distance below the nozzle hole 3, for example, 200 mm to 1000 mm. Internal diameter 2mm to 4 vertically spaced
mm, and the length is 150 mm to 1300 mm. If the thread guide tube is short, the suction force will be weak, and if it is too long, the resistance inside the tube will increase when air and fibers pass through the tube, and the suction force will also become weak, which is not preferable. As shown in FIG.
A cap 7 forming a part of the thread guide tube is attached thereto, and the outer peripheral surface of the opening 6 has an inverted truncated conical shape. A high-pressure air chamber 10 is disposed surrounding the lower part of the yarn pipe 4 and the base 7, and includes a high-pressure air chamber main body 8 having an inverted conical lower inner surface, and a sealing lid 9 attached to the main body 8. The outer peripheral surface of the opening 6 and the lower inner surface of the main body 8 form an inverted truncated conical slit 11. The cap 7 is screwed into the cylindrical interior of the main body 8, and by rotating the cap 7, the width of the slit 11 can be adjusted as desired. The angle of inclination of the slit 11 with respect to the vertical line is
15° to 30°, and the slit width of the slit 11 is 0.2 mm to 1.5 mm, particularly preferably 0.2 mm to 1.5 mm.
It is appropriate to set it to 0.5mm. The high-pressure air chamber 10 has a pressure of 3 kg /
It is constructed so that high pressure air of cm 2 to 7 kg/cm 2 is supplied. Further, an acceleration tube 14 is provided which connects and communicates with the lower opening 6 of the yarn guide tube 4. The acceleration tube 14 is composed of a lower portion of the main body 8 and a tube member 15 screwed thereto. The length of the accelerating tube 14 is extremely important in order to apply an appropriate tensile force to the solidified glass fiber portion introduced, and depending on the inclination angle of the slit 11, the length is 40 mm from the opening 6. It is selected in the range of 150mm to 150mm. The inner diameter of the accelerating tube 14 is approximately equal to or slightly larger than the inner diameter of the filament tube (3 mm to 5 mm).
Preferably, the tubes communicate with each other and both their top and bottom ends are open to the atmosphere. The accelerating tube is preferably a straight tube, a tube of different diameters with a wide lower end, or a tube with a wrapper shape. High pressure air is supplied from the high pressure air chamber 10 through an inverted truncated conical slit 11 at a rate of 40/min to 500/min.
The jet is ejected with a volume of min, and the ejected air converges at the center of the accelerating tube 14 and exerts a downward pulling force on the solidified glass fibers introduced into the accelerating tube 14. At the same time, an ejector effect is exerted on the yarn guide tube 4 to generate a negative pressure, and a high-speed airflow is also generated in the yarn guide tube 4. If the accelerating tube is too short, the tensile effect on the solidified glass fiber will be reduced, which is presumed to be due to the shortening of the high-speed airflow section in the accelerating tube, and if it is too long, the tube resistance will increase. As a result, the internal pressure increases and the effect of creating a negative pressure inside the fiber tube cannot be obtained, which hinders the continuous production of long glass fibers, so the length of the accelerating tube must be selected to an appropriate value. According to the present invention having the above-described structure, the communication connection portion includes the fiber guide tube 4 and the acceleration tube 14 provided with the slit 11 in the shape of an inverted truncated cone, and the high-pressure air is supplied from the slit 11 to the center of the acceleration tube. By ejecting the
A tensile force based on the high-speed airflow generated in these tubes is applied to the solidified glass fibers guided into the tube, and the falling glass is drawn out while being stretched, stabilizing the glass fibers with a fiber diameter of 3 μm to 25 μm. It can be continuously spun in this state. Such stable glass fiber spinning is possible because the airflow in the tube is generally faster in the center and the pressure is relatively lower than near the tube wall. This is due to the tensile force based on high-speed airflow acting over the entire length of the glass fibers in the tube without contacting the tube wall, and the present invention enables continuous glass fibers that cannot be obtained by conventional methods for the first time. I was able to obtain this. Example 1 In the spinning device shown in FIG. 1, one solidified fiber was introduced into each fiber tube, and the acceleration tube length l 2 = 60 mm, and the distance from the nozzle hole to the upper opening of the fiber tube L 3 = 1000 mm.
The inside diameter of the guiding tube is d 1 = 2 mm, and the inside diameter of the accelerating tube is d 2 = 3.
mm, inverted truncated conical slit inclination angle α = 20°, slit width W = 0.5 mm, air pressure P = 5 Kg/cm 2 , nozzle hole diameter d 3 = 3 mm, molten glass temperature t = 1300°C, and guide pipe length l 1 from 300 mm to 1000 mm, the spinning speed m/min and the spinning amount g/min for the fiber pipe length l 1
The Hr (per thread tube) and the fiber diameter μm were as shown in Table 1.
【表】
実施例 ２
第１図に示す紡糸装置において、導糸管１本に
対して１本の固化繊維を導入し、次記の条件下で
連続した長繊維のガラス繊維を紡糸した。
溶融ガラス温度 ｔ＝1320℃
ノズル孔径 d3＝３mm
空気圧 Ｐ＝５Kg／cm2
スリツト傾斜角 α＝20゜
スリツト幅 Ｗ＝0.2mm
導糸管内径 d1＝２mm
加速管内径 d2＝３mm
ノズル孔から導糸管上部開口までの距離
l3＝300mm
加速管長 l2を100mm乃至150mm
導糸管長 l1を150mm乃至1150mm
この場合のl1、l2に対する紡糸したガラス繊維
の紡糸速度ｍ／min、紡糸量ｇ／Hr（導糸管１本
当り）、繊維径μｍは第２表に示すとおりであつ
た。[Table] Example 2 In the spinning apparatus shown in FIG. 1, one solidified fiber was introduced into each fiber pipe, and continuous long glass fibers were spun under the following conditions. Molten glass temperature t=1320℃ Nozzle hole diameter d 3 = 3 mm Air pressure P = 5 Kg/cm 2 Slit inclination angle α = 20° Slit width W = 0.2 mm Guide tube inner diameter d 1 = 2 mm Accelerator tube inner diameter d 2 = 3 mm Nozzle hole Distance from l 3 to the upper opening of the fiber tube = 300 mm Acceleration tube length l 2 is 100 mm to 150 mm Guid tube length l 1 is 150 mm to 1150 mm In this case, the spinning speed of the spun glass fibers for l 1 and l 2 in m/min, The spinning amount in g/Hr (per one fiber tube) and the fiber diameter in μm were as shown in Table 2.
【表】
実施例 ３
第１図に示す紡糸装置において、
導糸管１本に対して １本又は５本の繊維を導入
ノズル孔径 d3＝2.5mm
加速管長 l2＝125mm
とし、他は実施例２と同様の条件下で連続した長
繊維のガラス繊維を紡糸した。
この場合のl1に対する繊維１本当りの紡糸速度
ｍ／min、導糸管１本当りの全紡糸量ｇ／Hr、繊
維径μｍは第３表に示すとおりであつた。[Table] Example 3 In the spinning apparatus shown in Fig. 1, one or five fibers were introduced into one fiber guide tube with nozzle hole diameter d 3 = 2.5 mm, acceleration tube length l 2 = 125 mm, and the other cases were as follows. Continuous long glass fibers were spun under the same conditions as in Example 2. In this case, the spinning speed (m/min) per fiber, the total spinning amount (g/Hr) per fiber tube, and the fiber diameter (μm) for l 1 were as shown in Table 3.
【表】【table】
【表】
上記実施例１及び２においては１本のガラス繊
維の連続紡糸について説明したが、実施例３に説
明の如く溶融炉のノズル孔数をふやし複数本のガ
ラス繊維を同時的に紡糸することも可能であり、
また原料としてガラス以外に岩綿、スラグ、セメ
ント・ガラス混合物の他シリカ、アルミナ・シリ
カ等の無機質繊維原料に対しても等しく本発明を
適用することができる。特にガラス繊維の紡糸に
おいては従来法に比し長繊維が得られることおよ
び生産性が高められることの二点においてその効
果は顕著なものがある。
さらに本発明によれば、従来の如く、巻取ドラ
ムを用いることなく長繊維を連続的に紡糸しうる
ので、任意の形状、寸法のマツト・ウールを容易
に成型することができる。本発明の長繊維はマツ
ト材、断熱吸音材の他、プラスチツクやセメント
の強化材にも有効に用いることができる。[Table] In Examples 1 and 2 above, continuous spinning of one glass fiber was explained, but as explained in Example 3, the number of nozzle holes in the melting furnace was increased and multiple glass fibers were spun simultaneously. It is also possible,
In addition to glass as raw materials, the present invention is equally applicable to rock wool, slag, cement/glass mixtures, and inorganic fiber raw materials such as silica, alumina/silica, and the like. Particularly in the spinning of glass fibers, its effects are remarkable in two respects: long fibers can be obtained and productivity can be increased compared to conventional methods. Further, according to the present invention, since long fibers can be continuously spun without using a winding drum as in the conventional method, pine wool of any shape and size can be easily formed. The long fibers of the present invention can be effectively used in pine materials, heat-insulating and sound-absorbing materials, as well as reinforcing materials for plastics and cement.
第１図は本発明による長尺無機質繊維の紡糸方
法を実施する装置の説明図、第２図は本発明装置
の高圧空気室部分を示す拡大断面図である。
１……溶融炉、２……ノズルプレート、３……
ノズル孔、４……導糸管、５……上部開口、６…
…下部開口、７……口金、８……高圧空気室本
体、９……密封蓋、１０……高圧空気室、１１…
…倒立截頭円錐状スリツト、１２……コンプレツ
サー、１３……圧気溜、１４……加速管、１５…
…管部材。
FIG. 1 is an explanatory diagram of an apparatus for carrying out the method for spinning long inorganic fibers according to the present invention, and FIG. 2 is an enlarged sectional view showing a high-pressure air chamber portion of the apparatus of the present invention. 1... Melting furnace, 2... Nozzle plate, 3...
Nozzle hole, 4... Thread guide tube, 5... Upper opening, 6...
... lower opening, 7 ... base, 8 ... high pressure air chamber main body, 9 ... sealing lid, 10 ... high pressure air chamber, 11 ...
...Inverted truncated conical slit, 12... Compressor, 13... Pressure reservoir, 14... Accelerator tube, 15...
...Pipe member.
Claims (1)
無機質繊維原料を糸状に流下させ、その固化繊維
部分を前記ノズル孔の下方に垂直に配置した導糸
管の上部開口から導入し、該導糸管の下部開口外
周面に形成される倒立截頭円錐状のスリツトから
前記導糸管に接続連通する加速管中に高圧空気を
管中心に収斂する如く噴出せしめ、前記導糸管お
よび加速管中に導かれる前記固化繊維部分にこれ
ら管中に起生される高速気流に基づく引張力を作
用せしめることにより無機質繊維を連続的に紡出
することを特徴とする高速気流による無機質繊維
の紡糸方法。 ２ 無機質繊維原料を溶融し、該溶融原料を糸状
に流下させるためのノズル孔を備えた溶融炉と、
前記ノズル孔から流下する溶融原料の固化繊維部
分を導入する上部開口を有しノズル孔の下方に垂
直に配置された導糸管と、該導糸管の下部開口外
周面との間に倒立截頭円錐状のスリツトを形成せ
しめかつ該スリツトを通して、高圧空気を噴出せ
しめるための高圧空気室と、前記導糸管の下部に
接続連通するとともに前記スリツトからの高圧空
気の噴出が管中心に収斂するようになされた加速
管とからなり、前記導糸管および加速管中に導か
れる前記固化繊維部分にこれら管中に起生される
高速気流に基づく引張力を作用せしめることによ
り無機質繊維を連続的に紡出するようにした無機
質繊維の紡糸装置。[Scope of Claims] 1. The molten inorganic fiber raw material is made to flow down in the form of a thread from a nozzle hole provided at the bottom of the melting furnace, and the solidified fiber portion is passed through the upper opening of a thread pipe arranged vertically below the nozzle hole. high-pressure air is blown out from an inverted truncated conical slit formed on the outer circumferential surface of the lower opening of the thread guide tube into an acceleration tube that is connected and communicated with the thread guide tube so as to converge at the center of the tube. By applying a tensile force based on the high-speed airflow generated in these tubes to the solidified fiber portion guided into the yarn tube and the acceleration tube, inorganic fibers are continuously spun by high-speed airflow. A method for spinning inorganic fibers. 2. A melting furnace equipped with a nozzle hole for melting an inorganic fiber raw material and causing the molten raw material to flow down in the form of a thread;
An inverted cut is made between a thread guide tube, which has an upper opening for introducing the solidified fiber portion of the molten raw material flowing down from the nozzle hole, and is arranged vertically below the nozzle hole, and the outer peripheral surface of the lower opening of the thread guide tube. A slit with a conical shape is formed, and the slit is connected to a high-pressure air chamber for blowing out high-pressure air through the slit to the lower part of the thread guide tube, and the jet of high-pressure air from the slit converges at the center of the tube. The inorganic fibers are continuously formed by applying a tensile force based on high-speed airflow generated in these tubes to the solidified fiber portion guided into the filament tube and the acceleration tube. A spinning device for inorganic fibers.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5698480A JPS56169146A (en) | 1980-04-28 | 1980-04-28 | Method and apparatus for spinning inorganic fiber with high-speed flow of air |
| CH274181A CH652382A5 (en) | 1980-04-28 | 1981-04-27 | Process and apparatus for spinning inorganic fibres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5698480A JPS56169146A (en) | 1980-04-28 | 1980-04-28 | Method and apparatus for spinning inorganic fiber with high-speed flow of air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56169146A JPS56169146A (en) | 1981-12-25 |
| JPS6235981B2 true JPS6235981B2 (en) | 1987-08-05 |
Family
ID=13042757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5698480A Granted JPS56169146A (en) | 1980-04-28 | 1980-04-28 | Method and apparatus for spinning inorganic fiber with high-speed flow of air |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS56169146A (en) |
| CH (1) | CH652382A5 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK2091877T3 (en) * | 2006-11-28 | 2013-07-29 | Corning Inc | PROCEDURE FOR MANUFACTURING OPTICAL FIBERS |
| DE102007020559B4 (en) * | 2007-05-02 | 2012-03-29 | Saint-Gobain Isover G+H Ag | Apparatus and process for the production of mineral wool from mineral raw materials by the nozzle blowing method and use of the device |
| CN114656139B (en) * | 2021-07-01 | 2023-08-22 | 江苏佳成特种纤维有限公司 | Filament drawing method for alkali-free glass fiber cloth production |
-
1980
- 1980-04-28 JP JP5698480A patent/JPS56169146A/en active Granted
-
1981
- 1981-04-27 CH CH274181A patent/CH652382A5/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56169146A (en) | 1981-12-25 |
| CH652382A5 (en) | 1985-11-15 |
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