GB702936A - Improvements relating to spinning nozzles for rayon and cellulose wool - Google Patents

Improvements relating to spinning nozzles for rayon and cellulose wool

Info

Publication number
GB702936A
GB702936A GB12683/51A GB1268351A GB702936A GB 702936 A GB702936 A GB 702936A GB 12683/51 A GB12683/51 A GB 12683/51A GB 1268351 A GB1268351 A GB 1268351A GB 702936 A GB702936 A GB 702936A
Authority
GB
United Kingdom
Prior art keywords
nozzle
carbide
tantalum
rayon
carbon
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
GB12683/51A
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 GB702936A publication Critical patent/GB702936A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/02—Alloys based on vanadium, niobium, or tantalum
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/20—Carburising
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

A nozzle for spinning rayon or cellulose wool is formed of tantalum containing tantalum carbide. The carbide may form a surface layer or may be dispersed throughout the body of the nozzle. In making the nozzle, a workpiece of tantalum may be heated to 700-1,500 DEG C. under a pressure less than 1 mm. of mercury in the presence of a gaseous compound of carbon with one or more of the elements hydrogen, nitrogen, or oxygen, e.g. methane or carbon monoxide. The nozzle, after carburization, may be heat-treated to produce a uniform dispersion of the carbide throughout the body of the nozzle.ALSO:A spinning nozzle for spinning rayon or cellulose wool is formed of tantalum and has an active surface containing tantalum carbide. The carbide may form a surface layer or may be dispersed throughout the body of the nozzle. A workpiece of tantalum may be heated to 700 DEG -1500 DEG C. under a pressure less than 1m.m. of mercury in the presence of a gaseous compound of carbon with one or more of the elements hydrogen, nitrogen, or oxygen. The carbon compound may be methane or carbon monoxide. The nozzle, after carburization, may be heat treated to produce a uniform dispersion of the carbide throughout the body of the nozzle.
GB12683/51A 1948-12-30 1951-05-30 Improvements relating to spinning nozzles for rayon and cellulose wool Expired GB702936A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE702936X 1948-12-30

Publications (1)

Publication Number Publication Date
GB702936A true GB702936A (en) 1954-01-27

Family

ID=6613501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12683/51A Expired GB702936A (en) 1948-12-30 1951-05-30 Improvements relating to spinning nozzles for rayon and cellulose wool

Country Status (1)

Country Link
GB (1) GB702936A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3049753A (en) * 1959-04-29 1962-08-21 Engelhard Ind Inc Spinnerette
US4054468A (en) * 1976-09-07 1977-10-18 E. I. Du Pont De Nemours And Company Process of making a laminated spinneret
US5512113A (en) * 1993-11-09 1996-04-30 E. I. Du Pont De Nemours And Company One-piece single metal spinneret having softened capillary zone
EP0869204A1 (en) * 1997-03-31 1998-10-07 Toray Industries, Inc. Method of melt-spinning synthetic fiber, shaping device for molten polymer and filter
CN106119650A (en) * 2016-06-24 2016-11-16 西北有色金属研究院 Ta TaC ZrB2alN composite and preparation method thereof
EP3109339A1 (en) * 2015-06-25 2016-12-28 Commissariat à l'Énergie Atomique et aux Énergies Alternatives Method for treating a workpiece made of tantalum or a tantalum alloy

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3049753A (en) * 1959-04-29 1962-08-21 Engelhard Ind Inc Spinnerette
US4054468A (en) * 1976-09-07 1977-10-18 E. I. Du Pont De Nemours And Company Process of making a laminated spinneret
US5512113A (en) * 1993-11-09 1996-04-30 E. I. Du Pont De Nemours And Company One-piece single metal spinneret having softened capillary zone
EP0869204A1 (en) * 1997-03-31 1998-10-07 Toray Industries, Inc. Method of melt-spinning synthetic fiber, shaping device for molten polymer and filter
US5997789A (en) * 1997-03-31 1999-12-07 Toray Industries, Inc. Process of melt-spinning synthetic fiber
EP3109339A1 (en) * 2015-06-25 2016-12-28 Commissariat à l'Énergie Atomique et aux Énergies Alternatives Method for treating a workpiece made of tantalum or a tantalum alloy
FR3037971A1 (en) * 2015-06-25 2016-12-30 Commissariat Energie Atomique PROCESS FOR PROCESSING A TANTAL OR TANTAL ALLOY PART
US10287667B2 (en) 2015-06-25 2019-05-14 Commissariat A L'energie Atomique Et Aux Energies Alternatives Process for treating a piece of tantalum or of a tantalum alloy
CN106119650A (en) * 2016-06-24 2016-11-16 西北有色金属研究院 Ta TaC ZrB2alN composite and preparation method thereof

Similar Documents

Publication Publication Date Title
GB702936A (en) Improvements relating to spinning nozzles for rayon and cellulose wool
GB335632A (en) Improvements in or relating to the treatment of mixtures containing carbon dioxide and hydrogen for the purpose of reducing or eliminating hydrogen content, and to the formation of carbon monoxide therefrom
GB723081A (en) Improvements in or relating to a process for the production of hydrogen cyanide
GB575696A (en) Improvements in and relating to the treatment of materials to render them water repellent
GB667342A (en) Method of rendering nitrous gases innocuous
GB713300A (en) Improvements in or relating to the manufacture of steel
GB507516A (en) Improvements in or relating to processes for the manufacture of carbon black from carbon-containing gases
GB714588A (en) Method of desulphurizing carbon-coated electrodes
GB736777A (en) Improvements in pen points or nibs and the manufacture thereof
GB998683A (en) Treating sheet steel to render it non-ageing
GB314314A (en) An improved process for producing non-corrosive and heat resisting surfaces on iron
GB610356A (en) Improvements in or relating to the case hardening of ferrous alloys
GB217277A (en) Production of activated nitrogen
GB858404A (en) A method of lowering the carbon content of chromium-bearing steels
GB648186A (en) Improvements relating to germanium rectifiers
GB689444A (en) Improvements in the production of acetylene solutions
GB831105A (en) Improvements in the production of acetylene by thermal cracking of hydrocarbons
GB190910164A (en) Improvements in, and connected with, Processes for the Manufacture of Nitrous and Nitric Acids, Nitrate, Nitrite or Sulpho-nitrate or Sulpho-nitrite of Lime, Soda or Potash.
GB691124A (en) Process for the production of steel having a very low nitrogen content
Estrin Carburization in Nitrogen-Diluted CH 4--H 2--H 2 O Gas Mixture
GB572471A (en) Improvements in and relating to the purification of gases
GB775933A (en) Process for the manufacture of pure urea
GB687725A (en) Improvements in and relating to the surface treatment of steels
GB110221A (en) Improvements in the Fireproofing of Textile Fibres and Fabrics and like Substances or Articles.
GB720412A (en) An improved method of blowing pig iron and other carbon-containing iron baths