Method of making fibers from mineral melts which have a viscosity of not more than 18 poise at 1400.degree. C.
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0849424
(1997-05-30)
|
우선권정보 |
GB-0024331 (1994-12-01) |
국제출원번호 |
PCT/EP95/04746
(1995-12-01)
|
§371/§102 date |
19970530
(19970530)
|
국제공개번호 |
WO-9616912
(1996-06-06)
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발명자
/ 주소 |
- Jensen Carsten,DKX
- Grove-Rasmussen Svend,DKX
|
출원인 / 주소 |
- Rockwool International A/S
|
대리인 / 주소 |
Ostrolenk, Faber, Gerb & Soffen, LLP
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
3 |
초록
▼
Man made vitreous fibers are made using a cascade of rotors (4, 5, 6, 7) from melt poured onto the top rotor (4) wherein the melt has a low viscosity (not more than 18 poise) at 1400.degree. C. and has a viscosity of not more than 10 poise on the top rotor (4), the top rotor has an acceleration fiel
Man made vitreous fibers are made using a cascade of rotors (4, 5, 6, 7) from melt poured onto the top rotor (4) wherein the melt has a low viscosity (not more than 18 poise) at 1400.degree. C. and has a viscosity of not more than 10 poise on the top rotor (4), the top rotor has an acceleration field of at least 30 km/sec.sup.2, and the second rotor (5) is arranged with its center on a line with the center of rotor (4) which makes an angle C of 0-20.degree. and has an acceleration field of 50 to 150% of the field of the rotor (4), and the subsequent rotors (6, 7) have an acceleration field of 120 to 250% of the acceleration field of the rotor (4).
대표청구항
▼
[ We claim:] [1.] A process for making man Made Vitreous Fibres (MMVF) product from mineral melt using a cascade (1) of rotating rotors (4, 5, 6, 7) which comprises a first, top, rotor (4), a second rotor (5) and at least one subsequent rotor (6, 7) wherein the rotors are mounted on different horizo
[ We claim:] [1.] A process for making man Made Vitreous Fibres (MMVF) product from mineral melt using a cascade (1) of rotating rotors (4, 5, 6, 7) which comprises a first, top, rotor (4), a second rotor (5) and at least one subsequent rotor (6, 7) wherein the rotors are mounted on different horizontal axes, each rotating in a direction counter to the preceding rotor, and are arranged such that a melt poured on the top rotor (4) is thrown from that onto the second rotor (5) and from that onto the remaining subsequent rotor or rotors (6, 7) and is thrown from the subsequent rotors as fibres, andthe process comprises pouring a melt of rock, stone or slag in which the total amount of CaO+MgO is at least 15 wt % and the total amount of Na.sub.2 O+K.sub.2 O is below 10 wt % on to the top rotor 4 and collecting the fibres thrown of the rotors, and in whichthe melt viscosity of the melt at 1400.degree. C. is not more than 1.8 Pa.s (18 poise),the melt viscosity of the melt on the top rotor is not more than 1 Pa.s (10 poise),the acceleration field on the top rotor is at least 30/sec.sup.2,the acceleration field on the second rotor is 50 to 150% of the acceleration field on the top rotor (4),the acceleration field on any subsequent rotor (6, 7) is 120 to 250% of the acceleration field of the top rotor (4), andthe axes of the first rotor (4) and the second rotor (5) are arranged such that a line drawn from the axis of the first rotor to the axis of the second rotor makes an angle C of 0 to 20.degree. below the horizontal.
이 특허에 인용된 특허 (3)
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Bauer Jon F. (Castle Rock CO) Schaal Kevin D. (Littleton CO), Glass fiber composition with improved biosolubility.
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Olds Leonard E. (977 S. Lake Gulch Rd. Castle Rock CO 80104) Kielmeyer William H. (3374 W. Chenango Ave. Englewood CO 80110), Inorganic fiber composition.
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Albert Frank D. (Clearwater FL) Conroy Alan P. (Tampa FL) Skinner David L. (St. Petersburg FL), Process for making uniform short non-cellulosic fibers.
이 특허를 인용한 특허 (3)
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Zubko, Yevgeniy; Zubko, Yurii, Basalt fibers produced from high temperature melt.
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Brik, Alexesy V., Ceramic bushing/s consisting local heating/s integrated in apparatus for manufacturing mineral/basalt fibers.
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Brik, Vladimir B., Multifunctional apparatus for manufacturing mineral basalt fibers.
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