GB8506311D0 - Explosive hardening of cast portion - Google Patents

Explosive hardening of cast portion

Info

Publication number
GB8506311D0
GB8506311D0 GB858506311A GB8506311A GB8506311D0 GB 8506311 D0 GB8506311 D0 GB 8506311D0 GB 858506311 A GB858506311 A GB 858506311A GB 8506311 A GB8506311 A GB 8506311A GB 8506311 D0 GB8506311 D0 GB 8506311D0
Authority
GB
United Kingdom
Prior art keywords
cast portion
explosive
hardening
explosive hardening
cast
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.)
Granted
Application number
GB858506311A
Other versions
GB2172234A (en
GB2172234B (en
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.)
VNII ZHELEZNODOROZH TRANSPORTA
Original Assignee
VNII ZHELEZNODOROZH TRANSPORTA
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 VNII ZHELEZNODOROZH TRANSPORTA filed Critical VNII ZHELEZNODOROZH TRANSPORTA
Priority to GB08506311A priority Critical patent/GB2172234B/en
Priority to DE19853508998 priority patent/DE3508998A1/en
Priority to FR8503780A priority patent/FR2578857B1/en
Publication of GB8506311D0 publication Critical patent/GB8506311D0/en
Priority to AT0131386A priority patent/AT385218B/en
Publication of GB2172234A publication Critical patent/GB2172234A/en
Application granted granted Critical
Publication of GB2172234B publication Critical patent/GB2172234B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Heat Treatment Of Articles (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
GB08506311A 1985-03-12 1985-03-12 Method of explosive hardening a cast portion of acute angle frogs of railroad switches Expired GB2172234B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB08506311A GB2172234B (en) 1985-03-12 1985-03-12 Method of explosive hardening a cast portion of acute angle frogs of railroad switches
DE19853508998 DE3508998A1 (en) 1985-03-12 1985-03-13 METHOD FOR EXPLOSION-FASTENING THE MOLDED PART OF THE POINTED RAILWAY HEART PIECES OF SOFT
FR8503780A FR2578857B1 (en) 1985-03-12 1985-03-14 PROCESS FOR EXPLOSIVE HARDENING OF THE MOLDED PART OF ACUTE CROSSINGS OF RAILWAY CONNECTIONS.
AT0131386A AT385218B (en) 1985-03-12 1986-05-16 METHOD FOR EXPLOSION-FASTENING THE MOLDED PART OF THE POINTED RAILWAY HEART PIECES OF SOFT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08506311A GB2172234B (en) 1985-03-12 1985-03-12 Method of explosive hardening a cast portion of acute angle frogs of railroad switches

Publications (3)

Publication Number Publication Date
GB8506311D0 true GB8506311D0 (en) 1985-04-11
GB2172234A GB2172234A (en) 1986-09-17
GB2172234B GB2172234B (en) 1988-04-07

Family

ID=10575833

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08506311A Expired GB2172234B (en) 1985-03-12 1985-03-12 Method of explosive hardening a cast portion of acute angle frogs of railroad switches

Country Status (4)

Country Link
AT (1) AT385218B (en)
DE (1) DE3508998A1 (en)
FR (1) FR2578857B1 (en)
GB (1) GB2172234B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9719158B2 (en) 2014-12-29 2017-08-01 Progress Rail Services Corporation Explosively depth hardened crawler shoes
GB2581383A (en) * 2019-02-15 2020-08-19 Progress Rail Services Uk Ltd Improved steel railway crossing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2703297A (en) * 1951-03-26 1955-03-01 Kelly L Taulbee Method of hardening manganese steel
FR1289813A (en) * 1961-05-10 1962-04-06 Du Pont Metal hardening process

Also Published As

Publication number Publication date
DE3508998A1 (en) 1986-09-25
GB2172234A (en) 1986-09-17
ATA131386A (en) 1987-08-15
FR2578857B1 (en) 1989-01-06
FR2578857A1 (en) 1986-09-19
GB2172234B (en) 1988-04-07
AT385218B (en) 1988-03-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee