GB817519A - Improvements in or relating to apparatus for preparing an atmosphere for the heat treatment of metals - Google Patents

Improvements in or relating to apparatus for preparing an atmosphere for the heat treatment of metals

Info

Publication number
GB817519A
GB817519A GB13100/57A GB1310057A GB817519A GB 817519 A GB817519 A GB 817519A GB 13100/57 A GB13100/57 A GB 13100/57A GB 1310057 A GB1310057 A GB 1310057A GB 817519 A GB817519 A GB 817519A
Authority
GB
United Kingdom
Prior art keywords
reservoir
pipes
liquid
supply
metals
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
GB13100/57A
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Publication of GB817519A publication Critical patent/GB817519A/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Furnace Details (AREA)

Abstract

817,519. Furnace atmospheres. REGIE NATIONALE DES USINES RENAULT. April 24, 1957 [April 26, 1956], No. 13100/57. Class 51 (2). Apparatus for the supply to furnaces 1 and 2 of a mixture of nitrogen and organic vapours used in the heat treatment of metals, e.g. cementation of steel, comprises atomizers 3 and 4 respectively supplied with the organic liquid from a reservoir 15 through pipes 13 and 14, with atomizing nitrogen under pressure from a reservoir 7, through pipes 5 and 6, and with additional gas, e.g. propane, under pressure from a reservoir 11 through pipes 9 and 10. The liquid is supplied from a storage tank 22 through a degasifying apparatus 23 and a pump 21 under control of a float device 19. Compressed air supplied through a line 16 provides the pressure in the reservoir 15 under control of a safety valve 18. The supply pipes for the liquid. and gases are provided with control valves 25-30 and flowmeters 31-36. Associated with the atomizer 4 is a heater 37 provided with a thermostat 38 controlling the liquid supply to the atomizer by a valve 39.
GB13100/57A 1956-04-26 1957-04-24 Improvements in or relating to apparatus for preparing an atmosphere for the heat treatment of metals Expired GB817519A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR817519X 1956-04-26

Publications (1)

Publication Number Publication Date
GB817519A true GB817519A (en) 1959-07-29

Family

ID=9268363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13100/57A Expired GB817519A (en) 1956-04-26 1957-04-24 Improvements in or relating to apparatus for preparing an atmosphere for the heat treatment of metals

Country Status (1)

Country Link
GB (1) GB817519A (en)

Similar Documents

Publication Publication Date Title
GB610003A (en) Portable apparatus for holding and vaporizing liquefied gases
GB1408832A (en) Non-polluting steam generator system
GB879448A (en) Porous concrete element for the gaseous refining of molten metals
GB817519A (en) Improvements in or relating to apparatus for preparing an atmosphere for the heat treatment of metals
GB1466536A (en) Methods and apparatus for vapourising oil
ES363270A1 (en) Process for supplying gas mixtures to welding and cutting apparatus
GB760273A (en) An improved method of heating gas by means of a heat-insulator furnace and apparatus therefor
GB899350A (en) Air heating apparatus
GB898465A (en) Improvements in and relating to atmospheres for the heat treatment of metals
GB783943A (en) Improvements relating to fluid mixing apparatus
GB766603A (en) Improvements in or relating to industrial furnaces and ovens
US2123885A (en) Gas treatment
GB1276248A (en) Fuel burning apparatus
GB795123A (en) An improved method and apparatus for oil firing
JPS5716163A (en) Gas cementation by nitrogen, org. liquid agent and hydrocarbon
GB198627A (en) Improved process of and apparatus for coating and welding metals
GB770514A (en) Improvements in, or relating to, heating apparatus
GB1305501A (en)
GB913280A (en) Improvements in or relating to gas burners
GB1533091A (en) Equipment for controlling the supply of liquid fuel of a spray nozzle
GB1048448A (en) Improvements in or relating to gas turbine plants
GB707290A (en) Improvements in or relating to metal welding and/or coating devices
GB451047A (en) Method and apparatus for vaporizing sulphur, naphthalene and other solid fumigants
GB751629A (en) Burners for industrial furnaces, such as open-hearth furnaces
GB159453A (en) Improvements relating to valves for controlling the flow of gases