GB687725A - Improvements in and relating to the surface treatment of steels - Google Patents

Improvements in and relating to the surface treatment of steels

Info

Publication number
GB687725A
GB687725A GB960450A GB960450A GB687725A GB 687725 A GB687725 A GB 687725A GB 960450 A GB960450 A GB 960450A GB 960450 A GB960450 A GB 960450A GB 687725 A GB687725 A GB 687725A
Authority
GB
United Kingdom
Prior art keywords
steels
relating
steel
surface treatment
per cent
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
GB960450A
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.)
GEORGE ROWLAND BOLSOVER
RONALD WILCOCK
SAMUEL FOX AND Co Ltd
Original Assignee
GEORGE ROWLAND BOLSOVER
RONALD WILCOCK
SAMUEL FOX AND Co Ltd
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 GEORGE ROWLAND BOLSOVER, RONALD WILCOCK, SAMUEL FOX AND Co Ltd filed Critical GEORGE ROWLAND BOLSOVER
Priority to GB960450A priority Critical patent/GB687725A/en
Publication of GB687725A publication Critical patent/GB687725A/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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

In a method of removing the surface of steel by scaling during heating, the heated steel is subjected to an atmosphere including air, and containing between 4 and 50 per cent of water vapour by volume. Preferred temperatures are in the range 600-1100 DEG C. The percentage of water-vapour used is determined by the amount of scaling required, and especially for the treatment of high carbon chromium steel should be at least 15 per cent.
GB960450A 1950-04-19 1950-04-19 Improvements in and relating to the surface treatment of steels Expired GB687725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB960450A GB687725A (en) 1950-04-19 1950-04-19 Improvements in and relating to the surface treatment of steels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB960450A GB687725A (en) 1950-04-19 1950-04-19 Improvements in and relating to the surface treatment of steels

Publications (1)

Publication Number Publication Date
GB687725A true GB687725A (en) 1953-02-18

Family

ID=9875186

Family Applications (1)

Application Number Title Priority Date Filing Date
GB960450A Expired GB687725A (en) 1950-04-19 1950-04-19 Improvements in and relating to the surface treatment of steels

Country Status (1)

Country Link
GB (1) GB687725A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684411A (en) * 1984-11-21 1987-08-04 Hawk Johnsen Method for finishing steel shapes with magnetite and product obtained therefrom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684411A (en) * 1984-11-21 1987-08-04 Hawk Johnsen Method for finishing steel shapes with magnetite and product obtained therefrom

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