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GB539638A - Process for producing a carburizing material for hardening ferrous metals - Google Patents

Process for producing a carburizing material for hardening ferrous metals

Info

Publication number
GB539638A
GB539638A GB1030240A GB1030240A GB539638A GB 539638 A GB539638 A GB 539638A GB 1030240 A GB1030240 A GB 1030240A GB 1030240 A GB1030240 A GB 1030240A GB 539638 A GB539638 A GB 539638A
Authority
GB
United Kingdom
Prior art keywords
coal
wood
iron
carbon
carbonate
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
GB1030240A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1030240A priority Critical patent/GB539638A/en
Publication of GB539638A publication Critical patent/GB539638A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23C8/60—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 solids, e.g. powders, pastes
    • C23C8/62—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 solids, e.g. powders, pastes only one element being applied
    • C23C8/64—Carburising
    • C23C8/66—Carburising of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Working-Up Tar And Pitch (AREA)

Abstract

539,638. Cementation; materials for making coke and other products. ADLER, R. June 13, 1940, No. 10302. [Class 55 (ii)] [Also in Group II] Carbonizing material for use in the hardening of iron and steel is obtained by heating gradually the higher boiling products of crude oil, or asphalt or tar from coal, shale, peat, or wood, together with an alkaline earth carbonate or oxide or a mixture of these with or without an alkali metal carbonate up to a red heat in the absence of air until substantially all the volatiles have escaped. The heating may be in two stages, slowly to 470‹C. and a shorter treatment at 700‹ to 970‹C. The residue may be leached with water to leave a carbonate content of 4 to 6 per cent., and dried. Substances rich in carbon such as wood or bone charcoal, or coal may be added before distillation to increase the hardness and porosity of the product. Ferrocyanides, thiocyanates and phosphates may be added prior to the distillation to facilitate the reaction between the iron and the carbon. In examples coal tar and coal pitch are referred to as starting materials.
GB1030240A 1940-06-13 1940-06-13 Process for producing a carburizing material for hardening ferrous metals Expired GB539638A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1030240A GB539638A (en) 1940-06-13 1940-06-13 Process for producing a carburizing material for hardening ferrous metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1030240A GB539638A (en) 1940-06-13 1940-06-13 Process for producing a carburizing material for hardening ferrous metals

Publications (1)

Publication Number Publication Date
GB539638A true GB539638A (en) 1941-09-18

Family

ID=9965354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1030240A Expired GB539638A (en) 1940-06-13 1940-06-13 Process for producing a carburizing material for hardening ferrous metals

Country Status (1)

Country Link
GB (1) GB539638A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228946A (en) * 1989-03-06 1990-09-12 Sigri Gmbh Process for the inhibition of the puffing of cokes produced from coal tar pitches
GB2228947A (en) * 1989-03-06 1990-09-12 Sigri Gmbh Process for the inhibition of the puffing of coke produced from coal tar pitches
GB2327490A (en) * 1997-07-18 1999-01-27 Dunbrik Building blocks

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228946A (en) * 1989-03-06 1990-09-12 Sigri Gmbh Process for the inhibition of the puffing of cokes produced from coal tar pitches
GB2228947A (en) * 1989-03-06 1990-09-12 Sigri Gmbh Process for the inhibition of the puffing of coke produced from coal tar pitches
GB2228947B (en) * 1989-03-06 1993-03-24 Sigri Gmbh Process for the inhibition of the puffing of coke produced from coal tar pitches
GB2228946B (en) * 1989-03-06 1993-03-24 Sigri Gmbh Process for the production of graphitized shaped carbon bodies
GB2327490A (en) * 1997-07-18 1999-01-27 Dunbrik Building blocks
GB2327490B (en) * 1997-07-18 2000-06-21 Dunbrik Improvements relating to building flue blocks and walls including such blocks

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