GB754866A - Improvements in or relating to spinning nozzles - Google Patents

Improvements in or relating to spinning nozzles

Info

Publication number
GB754866A
GB754866A GB11219/54A GB1121954A GB754866A GB 754866 A GB754866 A GB 754866A GB 11219/54 A GB11219/54 A GB 11219/54A GB 1121954 A GB1121954 A GB 1121954A GB 754866 A GB754866 A GB 754866A
Authority
GB
United Kingdom
Prior art keywords
chamber
quartz plate
drilled
valve
vacuum
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
Application number
GB11219/54A
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.)
WC Heraus GmbH and Co KG
Original Assignee
WC Heraus GmbH and Co KG
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 WC Heraus GmbH and Co KG filed Critical WC Heraus GmbH and Co KG
Publication of GB754866A publication Critical patent/GB754866A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/022—Processes or materials for the preparation of spinnerettes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/08—Removing material, e.g. by cutting, by hole drilling
    • B23K15/085—Boring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/244—Detectors; Associated components or circuits therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
    • H01J37/304—Controlling tubes by information coming from the objects or from the beam, e.g. correction signals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
    • H01J37/31—Electron-beam or ion-beam tubes for localised treatment of objects for cutting or drilling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
    • H01J2237/245—Detection characterised by the variable being measured
    • H01J2237/24507—Intensity, dose or other characteristics of particle beams or electromagnetic radiation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S164/00—Metal founding
    • Y10S164/04—Dental

Abstract

<PICT:0754866/IV(a)/1> A spinning nozzle comprises a plate of quartz or quartz glass having orifices formed by locally evaporating the material by means of a high energy electron beam in a high vacuum. A suitable beam intensity is of 2 mA. having a voltage drop of 100 KV, the "drilling" being effected at a pressure of 1 mm. of Hg. The quartz plate is "drilled" in the same direction as the spinning material is to pass through the orifice and so that the orifice is tapered towards its discharge end. As shown in Fig. 3, the walls 52 of the orifices so formed in the quartz plate 50 are preferably curved asymptotically towards their outlets 53. The quartz plate is preferably rotated during the "drilling" operation to ensure a symmetrically shaped orifice, and the several orifices in one nozzle are drilled according to an enlarged template by means of which the quartz plate may be accurately positioned in the path of the electron beam. A suitable apparatus for effecting the "drilling" is shown in Fig. 3 in which a high voltage rectified current is used for producing an electron beam from the heated cathode 4, the beam 28 being concentrated by a Wehnelt cylinder 4a and passing through an earthed anode 5, adjustable aperture 6 and electromagnetic focusing coils 10 to the quartz plate 11 being "drilled." The chamber 2b is maintained under high vacuum by a diffusion pump 13. The chamber 2c is maintained under vacuum by pump 29 and is separated from chamber 2b by valve 7 which closes automatically when pressure in chamber 2c is greater than that in chamber 2b, so as to preserve the vacuum in the latter. Quartz plate 11 being "drilled" is mounted in a chamber 1 so that it can be moved by control 27 from the outside, and its movements may be guided by template 27a to ensure the several holes being "drilled" in their correct positions. When a hole is completed, the electron beam strikes a collector electrode 20 located behind the quartz plate and this may be arranged to switch off the beam, through control gear 21; normally the beam is switched on and off by push-button 19 and control gear 18. When the cover 22 of chamber 1 is opened, contacts 23b and switch gear 23 are actuated to open valve 8 to atmosphere, whereupon valve 7 automatically closes to preserve the vacuum in chamber 2b. Switching is also arranged to ensure that whenever valve 7 opens, valve 9 is closed to isolate pump 29.
GB11219/54A 1953-04-15 1954-04-15 Improvements in or relating to spinning nozzles Expired GB754866A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE754866X 1953-04-15
DE2844706X 1953-08-21

Publications (1)

Publication Number Publication Date
GB754866A true GB754866A (en) 1956-08-15

Family

ID=32327370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11219/54A Expired GB754866A (en) 1953-04-15 1954-04-15 Improvements in or relating to spinning nozzles

Country Status (3)

Country Link
US (1) US2844706A (en)
FR (1) FR1103472A (en)
GB (1) GB754866A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL248568A (en) * 1959-02-20
US3118050A (en) * 1960-04-06 1964-01-14 Alloyd Electronics Corp Electron beam devices and processes
US3189953A (en) * 1960-05-27 1965-06-22 Stauffer Chemical Co Electron-beam furnace with magnetically guided beam
US3401249A (en) * 1963-07-09 1968-09-10 United Aircraft Corp Apparatus for the machining of material by means of a beam of charge carriers
DE1515201B2 (en) * 1964-08-08 1973-04-05 Steigerwald Strahltechnik GmbH, 8000 München DEVICE FOR MATERIAL PROCESSING BY USING A BODY JET
US3389240A (en) * 1964-09-25 1968-06-18 Welding Research Inc Electron beam welding apparatus
US3408474A (en) * 1966-04-04 1968-10-29 Gen Electric Electron beam welding apparatus
US3497666A (en) * 1968-04-11 1970-02-24 United Aircraft Corp Beam protection device
US3696504A (en) * 1971-08-11 1972-10-10 John A Cupler Method of performing sequential non-mechanical and mechanical machining operations along a common centerline
DE2951376C2 (en) * 1979-12-20 1983-09-15 Gesellschaft für Schwerionenforschung mbH, 6100 Darmstadt Method for generating a nuclear track or a multiplicity of nuclear tracks from heavy ions and from microholes formed from the nuclear tracks by etching, as well as device for carrying out the method
AT413545B (en) * 2003-07-14 2006-03-15 Chemiefaser Lenzing Ag METHOD FOR THE PRODUCTION OF CELLULOSIC FORM BODIES

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2079446A (en) * 1933-10-20 1937-05-04 Rca Corp Over-modulation protective device
US2128581A (en) * 1936-05-18 1938-08-30 Farnsworth Television Inc Fine beam electron gun
GB505197A (en) * 1937-11-05 1939-05-05 Baird Television Ltd Improvements in or relating to television and like systems
DE712434C (en) * 1938-01-26 1941-10-18 Siemens & Halske Akt Ges Process for the production of pure surface filters and ultrafilters
US2318856A (en) * 1941-03-01 1943-05-11 Fed Cartridge Corp Inspecting device
US2346975A (en) * 1941-11-26 1944-04-18 Gyro Balance Corp Dynamic balancing
US2457456A (en) * 1946-05-14 1948-12-28 Rca Corp Reading aid for the blind
GB709331A (en) * 1949-01-03 1954-05-19 Elliott Brothers London Ltd Improvements in or relating to light beam stabilising systems

Also Published As

Publication number Publication date
US2844706A (en) 1958-07-22
FR1103472A (en) 1955-11-03

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