GB539638A - Process for producing a carburizing material for hardening ferrous metals - Google Patents
Process for producing a carburizing material for hardening ferrous metalsInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2228947A (en) * | 1989-03-06 | 1990-09-12 | Sigri Gmbh | Process for the inhibition of the puffing of coke produced from coal tar pitches |
GB2228946A (en) * | 1989-03-06 | 1990-09-12 | Sigri Gmbh | Process for the inhibition of the puffing of cokes produced from coal tar pitches |
GB2327490A (en) * | 1997-07-18 | 1999-01-27 | Dunbrik | Building blocks |
-
1940
- 1940-06-13 GB GB1030240A patent/GB539638A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2228947A (en) * | 1989-03-06 | 1990-09-12 | Sigri Gmbh | Process for the inhibition of the puffing of coke produced from coal tar pitches |
GB2228946A (en) * | 1989-03-06 | 1990-09-12 | Sigri Gmbh | Process for the inhibition of the puffing of cokes 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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB539638A (en) | Process for producing a carburizing material for hardening ferrous metals | |
GB464667A (en) | Method of producing hydrogen by converting carbon monoxide with steam | |
US1779744A (en) | Metallurgical fuel and process for making the same | |
GB573085A (en) | Improvements in the production of gaseous atmospheres for the cementation of iron and steel | |
FR2346431A1 (en) | Small reduction coke with high electrical resistance and reactivity - prepd. from compressed low-coking fuels | |
DE728961C (en) | Process for the production of lumpy coke from fluidized coal | |
GB499432A (en) | Improvements in or relating to coking processes | |
GB291836A (en) | Improvements relating to the distillation of carbonaceous materials | |
GB373165A (en) | Improvements in or relating to the manufacture of carbon electrodes | |
GB461402A (en) | Process for the production of a gas of definite stoichiometric composition by the carbonisation of fuels | |
GB276407A (en) | Improvements in or relating to the distillation of carbonaceous materials | |
GB377451A (en) | Process for treating the carbonaceous residues derived from metal-volatilising processes in rotary drum furnaces | |
GB924813A (en) | Improvements in and relating to the carbonisation of coal | |
Benson et al. | Effect of Sulfur in the Briquetting of Subbituminous Coal | |
GB247210A (en) | Improved process for the manufacture and production of agglomerated combustible products | |
GB265349A (en) | Improved manufacture of coal gas | |
GB829209A (en) | Improvements in or relating to coke for the manufacture of industrial carbon | |
GB284818A (en) | Process for the production of carbon electrodes | |
GB1397022A (en) | Isotropic carbon | |
GB319895A (en) | Improvements in or relating to the distillation of solid carbonaceous materials and to the manufacture of briquettes | |
GB547114A (en) | Improvements in briquette carbonizing processes using modified tar or pitch binders | |
GB330723A (en) | Improvements in the working up of the oil bearing residues from destructive hydrogenation or pressure extraction processes | |
GB344569A (en) | Producing coked metalliferous agglomerates | |
GB416179A (en) | Improvements in and relating to case-hardening | |
GB546616A (en) | A process for the production of acetylene |