US2566283A - Spinnerette - Google Patents

Spinnerette Download PDF

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Publication number
US2566283A
US2566283A US81157A US8115749A US2566283A US 2566283 A US2566283 A US 2566283A US 81157 A US81157 A US 81157A US 8115749 A US8115749 A US 8115749A US 2566283 A US2566283 A US 2566283A
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US
United States
Prior art keywords
gold
rhodium
platinum
alloy
spinnerette
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 - Lifetime
Application number
US81157A
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English (en)
Inventor
Dowson Arthur Gordon
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.)
Baker and Co Inc
Original Assignee
Baker and Co Inc
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 Baker and Co Inc filed Critical Baker and Co Inc
Application granted granted Critical
Publication of US2566283A publication Critical patent/US2566283A/en
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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
    • C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
    • C03B37/095—Use of materials therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/04—Alloys based on a platinum group metal
    • 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

Definitions

  • This invention relates to spinnerettes such as are employed in the production of synthetic fibres and filaments for production of rayon, artificial silk, artificial wool and other similar materials.
  • Spinnerettes of this character essentially include a jet or nozzle through which the substance or material for extrusion is expelled under pressure. It is important that the spinner- .ette jets should be made of a metallic substance which will resist erosion and any tendency to corrode.
  • spinnerette jets are made from an alloy of platinum with rhodium and gold, which alloy contains 4 to 15% of gold, 5 to of rhodium and the balance of platinum, the proportions being so selected that for gold contents less than 5% the minimum rhodium content is increased above 5% by an amount equal to five times the amount by which the gold content is below 5%.
  • a gold content of 4.5% the rhodium must be not less than 7.5 and with 4% gold the rhodium must be not less than 10%.
  • the total gold and rhodium content preferably should not exceed about 25%.
  • jets made according to the present invention can be produced with a hardness of 400 V. P. N. or even higher.
  • Example I an alloy is prepared containing:
  • the alloy is produced in sheet form and is treated by raising it to a temperature of about 1050 C. to1100 C.- for 15 minutes. It is then quenched in cold water and is thereafter mechanically formed by the production of the cup and the drilling thereof. The formed jet is then heated for l to 2 hours at a temperature of 620 to 650 C. and allowed to cool. The finished jet has a hardness of 350 to 400 V. P. N or better.
  • Example II an alloy is prepared contain- 1118:
  • the process of producing the finished jet is substantially the same as in Example I and the hardness of the finished jet is about 450 V. P. N.
  • Example 17V In this example the proportions of the constituents of an alloy are chosen to be the same as those of Example I except that 20% of the platinum is replaced by palladium, the replacement being made atom for atom. It will of course be understood that the expresison "atom for atom is used to mean that 20% of the platinum is excluded and an amount of palladium containing an equivalent number of atoms is substituted. The weight of the palladium will thus be less than that of the platinum which it replaces.
  • the alloy prepared in this way is processed in the manner described in Example I and the hardness of the finished jet will be of the order of 250 to 300 V. P. N.
  • Example IV It will be realised from cons deration of Example IV that it is possible to substitute under certain circumstances a certain amount of platinum by palladium.
  • the alloy produced does not necessarily give as good results as those in which there is not substitution of platinum constituent but as will be appreciated it is often possible to substitute in a platinum-rich alloy a proportion of palladium without significantly altering the final desired properties of the alloy.
  • the proportions of the constituents of the alloys that may be used in the fulfilment of the invention are illustrated by reference to the. accompanying diagram.
  • the diagram represents the conventional diagram for a ternary alloy.
  • the horizontally hatched. portion includes within it those points which define the desired ratio of proportion between the three constituents. From the diagram it can be seen that as the gold constituent is reduced from to 4% the corresponding range for rhodium increases. Thus for an increment of reduction in the gold as between 5% and 4%, the minimum rhodium content increases by an increment that is five times as great as the first mentioned increment, thereby ensuring that when the gold constituent is reduced to 4% the minimum rhodium constituent has been increased to V I claim: v n V 1.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Metallurgy (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Manufacture And Refinement Of Metals (AREA)
US81157A 1948-03-16 1949-03-12 Spinnerette Expired - Lifetime US2566283A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB280429X 1948-03-16

Publications (1)

Publication Number Publication Date
US2566283A true US2566283A (en) 1951-08-28

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ID=586724

Family Applications (1)

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US81157A Expired - Lifetime US2566283A (en) 1948-03-16 1949-03-12 Spinnerette

Country Status (5)

Country Link
US (1) US2566283A (en(2012))
CH (1) CH280429A (en(2012))
DE (1) DE812842C (en(2012))
FR (1) FR983234A (en(2012))
NL (1) NL72535C (en(2012))

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923969A (en) * 1960-02-09 Certificate of correction
US2938788A (en) * 1958-02-20 1960-05-31 Ruthardt Konrad Spinning nozzles
US2967792A (en) * 1953-12-01 1961-01-10 Heraeus Gmbh W C Spinnerette
US3904740A (en) * 1972-03-30 1975-09-09 Engelhard Min & Chem Catalyst and process for ammonia oxidation
US4155730A (en) * 1977-01-29 1979-05-22 W. C. Heraeus Gmbh Alloys for jets, nozzles, and perforated base plates for producing glass fibers
US5472333A (en) * 1992-11-09 1995-12-05 Elephant Edelmetaal B.V. Spinnerette from gold-platinum-palladium-rhodium alloy
US20090218647A1 (en) * 2008-01-23 2009-09-03 Ev Products, Inc. Semiconductor Radiation Detector With Thin Film Platinum Alloyed Electrode

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1323834A (en) * 1919-12-02 Adolph cohjst
US1378996A (en) * 1920-07-17 1921-05-24 Baker & Co Inc Alloy
US1515464A (en) * 1920-12-14 1924-11-11 Dentists Supply Co Alloy
DE585545C (de) * 1930-10-21 1933-10-05 Heraeus Gmbh W C Rhodiumhaltige Palladiumlegierungen
US2071216A (en) * 1935-05-13 1937-02-16 Johnson Matthey Co Ltd Precious metal alloys
FR825702A (fr) * 1937-08-17 1938-03-11 Siebert G M B H G Tuyère pour filature
GB489375A (en) * 1937-01-26 1938-07-26 Mond Nickel Co Ltd Improvements in spinnerets
US2135611A (en) * 1933-12-20 1938-11-08 Du Pont Spinneret
GB511513A (en) * 1938-02-18 1939-08-21 Alan Richard Powell Improvements in or relating to precious metal alloys for use at high temperatures
US2273806A (en) * 1941-04-24 1942-02-17 Int Nickel Co Platinum alloy
US2384502A (en) * 1942-11-21 1945-09-11 American Platinum Works Method of preventing corrosion by phosphorus

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1323834A (en) * 1919-12-02 Adolph cohjst
US1378996A (en) * 1920-07-17 1921-05-24 Baker & Co Inc Alloy
US1515464A (en) * 1920-12-14 1924-11-11 Dentists Supply Co Alloy
DE585545C (de) * 1930-10-21 1933-10-05 Heraeus Gmbh W C Rhodiumhaltige Palladiumlegierungen
US2135611A (en) * 1933-12-20 1938-11-08 Du Pont Spinneret
US2071216A (en) * 1935-05-13 1937-02-16 Johnson Matthey Co Ltd Precious metal alloys
GB489375A (en) * 1937-01-26 1938-07-26 Mond Nickel Co Ltd Improvements in spinnerets
FR825702A (fr) * 1937-08-17 1938-03-11 Siebert G M B H G Tuyère pour filature
GB511513A (en) * 1938-02-18 1939-08-21 Alan Richard Powell Improvements in or relating to precious metal alloys for use at high temperatures
US2273806A (en) * 1941-04-24 1942-02-17 Int Nickel Co Platinum alloy
US2384502A (en) * 1942-11-21 1945-09-11 American Platinum Works Method of preventing corrosion by phosphorus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923969A (en) * 1960-02-09 Certificate of correction
US2967792A (en) * 1953-12-01 1961-01-10 Heraeus Gmbh W C Spinnerette
US2938788A (en) * 1958-02-20 1960-05-31 Ruthardt Konrad Spinning nozzles
US3904740A (en) * 1972-03-30 1975-09-09 Engelhard Min & Chem Catalyst and process for ammonia oxidation
US4155730A (en) * 1977-01-29 1979-05-22 W. C. Heraeus Gmbh Alloys for jets, nozzles, and perforated base plates for producing glass fibers
US5472333A (en) * 1992-11-09 1995-12-05 Elephant Edelmetaal B.V. Spinnerette from gold-platinum-palladium-rhodium alloy
US20090218647A1 (en) * 2008-01-23 2009-09-03 Ev Products, Inc. Semiconductor Radiation Detector With Thin Film Platinum Alloyed Electrode
US8896075B2 (en) 2008-01-23 2014-11-25 Ev Products, Inc. Semiconductor radiation detector with thin film platinum alloyed electrode

Also Published As

Publication number Publication date
NL72535C (en(2012))
CH280429A (fr) 1952-01-31
DE812842C (de) 1951-09-06
FR983234A (fr) 1951-06-20

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