GB1325334A - Method for spinning uniform fibres or filaments from virtually inviscid melts - Google Patents
Method for spinning uniform fibres or filaments from virtually inviscid meltsInfo
- Publication number
- GB1325334A GB1325334A GB3186870A GB3186870A GB1325334A GB 1325334 A GB1325334 A GB 1325334A GB 3186870 A GB3186870 A GB 3186870A GB 3186870 A GB3186870 A GB 3186870A GB 1325334 A GB1325334 A GB 1325334A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stream
- atmosphere
- point
- film
- diameter
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/005—Continuous casting of metals, i.e. casting in indefinite lengths of wire
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inorganic Fibers (AREA)
- Continuous Casting (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Extrusion Of Metal (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
1325334 Continuous casting MONSANTO CO 1 July 1970 [2 July 1969] 31868/70 Heading B3F [Also in Division C1] A fibre or filament is spun by extruding a stream 31 of molten material having a viscosity less than one poise at a Rayleigh parameter, between 1 and 25 (where V, #, D and γ are the stream velocity, density, diameter and surface tension respectively), into a gas so that a stabilizing film is formed about the stream between a point ("relaxation point") along the stream where the velocity profile 32 across the stream is flat and a point ("MPV point") where variations in the stream diameter due to wave growth first exceed 10% of the stream diameter. The melt may be Al, Cu, Fe, Pb or Sn; alloys such as Pb-Sn, steel, steel alloys or brass; intermetallic compounds; or metalloids such as As, Bo or Si. The film (e.g. formed on the stream by O 2 , propane, ammonia, BoCl 3 and water, CS 2 , CO 2 or CO in the atmosphere into which the stream is extruded) may be prevented from forming where the velocity profile 32 is insufficiently relaxed (and film disruption is likely) by protection by an inert gas before entering the film-forming atmosphere or by selection of the concentration of the filmforming component of the atmosphere, e.g. O 2 in an He/O 2 atmosphere. A gas plate as described in Specification 1,308,979 may be used for introduction of the inert gas as a flow to accelerate the melt surface and thus assist the flattening of the velocity profile 32. The relaxation distance 33 is preferably about one-half the continuous jet length 36, i.e. the length before break-up, and the orifice 19 has a low aspect ratio and small diameter. A charge of metal is melted in a crucible assembly (13), e.g. of stainless steel, by an inductor coil (20) and susceptor (12). Gas pressure then forces the melt (16) through an orifice (19) in an insert (18), e.g. of alumina, in a base member (14). Reference has been directed by the Comptroller to Specifications 1,153,577 and 1,197,972.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83854669A | 1969-07-02 | 1969-07-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1325334A true GB1325334A (en) | 1973-08-01 |
Family
ID=25277386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3186870A Expired GB1325334A (en) | 1969-07-02 | 1970-07-01 | Method for spinning uniform fibres or filaments from virtually inviscid melts |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS4948820B1 (en) |
BE (1) | BE752806R (en) |
FR (1) | FR2054605B2 (en) |
GB (1) | GB1325334A (en) |
NL (1) | NL7009821A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54119231U (en) * | 1978-02-10 | 1979-08-21 | ||
JPS58179358U (en) * | 1982-05-24 | 1983-11-30 | 山崎 善重 | Formwork holder for gutter formation |
JPS58183859U (en) * | 1982-06-03 | 1983-12-07 | 鈴木工業株式会社 | Concrete formwork spacing retainer |
JPS58186055U (en) * | 1982-06-05 | 1983-12-10 | 鈴木工業株式会社 | Concrete formwork spacing retainer |
JPS58186058U (en) * | 1982-06-05 | 1983-12-10 | 市川 陽一 | concrete formwork holder |
JPS5951147U (en) * | 1982-09-27 | 1984-04-04 | 吉田 健一 | Supporting metal fittings for concrete formwork |
JPS5988152U (en) * | 1982-12-04 | 1984-06-14 | 多田 裕 | Panel anchor for standing concrete |
-
1970
- 1970-07-01 BE BE752806D patent/BE752806R/en active
- 1970-07-01 FR FR7024442A patent/FR2054605B2/fr not_active Expired
- 1970-07-01 GB GB3186870A patent/GB1325334A/en not_active Expired
- 1970-07-02 NL NL7009821A patent/NL7009821A/xx unknown
- 1970-07-03 JP JP5770170A patent/JPS4948820B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS4948820B1 (en) | 1974-12-24 |
FR2054605A2 (en) | 1971-04-23 |
DE2032895B2 (en) | 1977-02-17 |
DE2032895A1 (en) | 1971-02-25 |
FR2054605B2 (en) | 1973-11-16 |
BE752806R (en) | 1971-01-04 |
NL7009821A (en) | 1971-01-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |