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GB1299390A - Watch case - Google Patents

Watch case

Info

Publication number
GB1299390A
GB1299390A GB08997/70A GB1899770A GB1299390A GB 1299390 A GB1299390 A GB 1299390A GB 08997/70 A GB08997/70 A GB 08997/70A GB 1899770 A GB1899770 A GB 1899770A GB 1299390 A GB1299390 A GB 1299390A
Authority
GB
United Kingdom
Prior art keywords
alone
optionally
watch case
alloys
agehardening
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
GB08997/70A
Inventor
Katsumi Yamamura
Hiroshi Harigaya
Kazutomo Kasai
Michio Asahina
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.)
Suwa Seikosha KK
Original Assignee
Suwa Seikosha KK
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 Suwa Seikosha KK filed Critical Suwa Seikosha KK
Priority to GB08997/70A priority Critical patent/GB1299390A/en
Publication of GB1299390A publication Critical patent/GB1299390A/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
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

1299390 Stainless steel alloys SUWA SEIKOSHA KK 21 April 1970 18997/70 Heading C7A [Also in Division B1] A watch case is formed of an age-hardenable steel of the following composition in per cent by weight Cr 6 - 22 Mo and optionally W 4 - 13 C 0 - 0À1 Si 0 - 2À5 Cu 0À35 - 3À0 Nb 0 - 0À3 optionally Ti and/or Be such that Ti alone is 0À1-4, Be alone is 0À05-2 and both together 0-4 optionally Co and/or Ni such that Co alone is 0À5- 12, Ni alone is 0-5 and both together 0À5-12 with Ni not exceeding 4. Fe and impurities the balance. The alloys may be hot rolled at 900-1050‹ C, heated to 1150-1200‹C and quenched in water. Agehardening may be effected at 570‹C for 7 hours.
GB08997/70A 1970-04-21 1970-04-21 Watch case Expired GB1299390A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08997/70A GB1299390A (en) 1970-04-21 1970-04-21 Watch case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08997/70A GB1299390A (en) 1970-04-21 1970-04-21 Watch case

Publications (1)

Publication Number Publication Date
GB1299390A true GB1299390A (en) 1972-12-13

Family

ID=10122016

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08997/70A Expired GB1299390A (en) 1970-04-21 1970-04-21 Watch case

Country Status (1)

Country Link
GB (1) GB1299390A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7005105B2 (en) * 2000-12-28 2006-02-28 Korea Electrotechnology Research Institute Fe-Cr-Al alloys for electric resistance wires
DE102009044651A1 (en) * 2009-11-25 2011-05-26 Vacuumschmelze Gmbh & Co. Kg Mechanical clock i.e. mechanical wristwatch, has magnetic shields made of alloy and comprising pot and lid that are connected with each other using spring and screw thread, where separated parts of shields are designed in plate-shape

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7005105B2 (en) * 2000-12-28 2006-02-28 Korea Electrotechnology Research Institute Fe-Cr-Al alloys for electric resistance wires
DE102009044651A1 (en) * 2009-11-25 2011-05-26 Vacuumschmelze Gmbh & Co. Kg Mechanical clock i.e. mechanical wristwatch, has magnetic shields made of alloy and comprising pot and lid that are connected with each other using spring and screw thread, where separated parts of shields are designed in plate-shape
DE102009044651B4 (en) * 2009-11-25 2011-11-03 Vacuumschmelze Gmbh & Co. Kg Clock with magnetic shield

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years