GB340794A - Improved container intended for case-hardening and more particularly for nitrogenisation - Google Patents
Improved container intended for case-hardening and more particularly for nitrogenisationInfo
- Publication number
- GB340794A GB340794A GB838/30A GB83830A GB340794A GB 340794 A GB340794 A GB 340794A GB 838/30 A GB838/30 A GB 838/30A GB 83830 A GB83830 A GB 83830A GB 340794 A GB340794 A GB 340794A
- Authority
- GB
- United Kingdom
- Prior art keywords
- duval
- class
- hardening
- case
- nitrogenisation
- 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
- C23C8/06—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
- C23C8/08—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 only one element being applied
- C23C8/24—Nitriding
- C23C8/26—Nitriding 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)
- Heat Treatment Of Articles (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
340,794. Hardening iron and steel. AUBERT, P. F. M., DUVAL, A. J. P., and DUVAL, H. A. M., (trading as AUBERT ET DUVAL FR’RES), 62, Avenue de la RÚpubli. que, Paris. Jan. 9, 1930, No. 838. Convention date, Jan. 23, 1929. [Class 72.] A container A for use in case-hardening iron and steel, particularly by nitrogenization, is provided with compartments a<1>, a3, formed with apertures a<2>, a<4> in their bottom and top respectively and shaped as shown in Fig. 1, so that the nitrogenizing gas is distributed uniformly throughout the container. The gas before entering the compartment a<1> by a pipe c<1> is heated by passing through a chamber c<2> provided with heating tubes c<3>. The exhausted gas leaves the compartment a<3> by a pipe D. The chamber c<2> may be dispensed with, or may be replaced by other heating means having a sufficient surface. Specifications 18195/97, [Class 34, Drying], and 133,263, [Class 140, Waterproof &c. fabrics], are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE340794X | 1929-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB340794A true GB340794A (en) | 1931-01-08 |
Family
ID=6229546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB838/30A Expired GB340794A (en) | 1929-01-23 | 1930-01-09 | Improved container intended for case-hardening and more particularly for nitrogenisation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB340794A (en) |
-
1930
- 1930-01-09 GB GB838/30A patent/GB340794A/en not_active Expired
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