GB672275A - Improvements in or relating to the manufacture of tools - Google Patents
Improvements in or relating to the manufacture of toolsInfo
- Publication number
- GB672275A GB672275A GB2320049A GB2320049A GB672275A GB 672275 A GB672275 A GB 672275A GB 2320049 A GB2320049 A GB 2320049A GB 2320049 A GB2320049 A GB 2320049A GB 672275 A GB672275 A GB 672275A
- Authority
- GB
- United Kingdom
- Prior art keywords
- halide
- solid
- tools
- kaolin
- carbide
- 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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
- C23C10/34—Embedding in a powder mixture, i.e. pack cementation
- C23C10/36—Embedding in a powder mixture, i.e. pack cementation only one element being diffused
- C23C10/38—Chromising
- C23C10/40—Chromising of ferrous surfaces
- C23C10/42—Chromising of ferrous surfaces in the presence of volatile transport additives, e.g. halogenated substances
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Ferrous tools are heated in a closed reaction vessel in a solid which contains a halide of a carbide-forming metal or which is capable of giving rise to such a halide on heating, such halide being present or being formed in a proportion not exceeding 0.2 per cent of the solid. The halide is preferably an iodide, the carbide-forming metal may be chromium, molybdenum or tungsten and heating may be effected at 750 DEG -1100 DEG C. The vessel may be sealed as described in Specification 646,638. In examples, mixtures of ferro-chromium, kaolin and potassium iodide and urea are used. Alumina or magnesia or mixtures thereof, with or without kaolin, may also form part of the solid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2320049A GB672275A (en) | 1949-09-07 | 1949-09-07 | Improvements in or relating to the manufacture of tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2320049A GB672275A (en) | 1949-09-07 | 1949-09-07 | Improvements in or relating to the manufacture of tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB672275A true GB672275A (en) | 1952-05-21 |
Family
ID=10191773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2320049A Expired GB672275A (en) | 1949-09-07 | 1949-09-07 | Improvements in or relating to the manufacture of tools |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB672275A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002002843A2 (en) * | 2000-06-29 | 2002-01-10 | Borg Warner, Inc. | Carbide coated steel articles and method of making them |
| WO2013070314A1 (en) * | 2011-09-13 | 2013-05-16 | Rexnord Industries, Llc | Article with wear- resistant coating and method of forming same |
| WO2020053443A1 (en) | 2018-09-14 | 2020-03-19 | Trd Surfaces Aps | Stainless steel object having a surface modified with chromium |
| CN114345935A (en) * | 2021-12-28 | 2022-04-15 | 浙江精瑞工模具有限公司 | A kind of high speed steel rolling method |
-
1949
- 1949-09-07 GB GB2320049A patent/GB672275A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002002843A2 (en) * | 2000-06-29 | 2002-01-10 | Borg Warner, Inc. | Carbide coated steel articles and method of making them |
| WO2002002843A3 (en) * | 2000-06-29 | 2002-05-30 | Borgwarner Inc | Carbide coated steel articles and method of making them |
| US6582765B2 (en) | 2000-06-29 | 2003-06-24 | Borgwarner, Inc. | Carbide coated steel articles and method of making them |
| KR100776492B1 (en) | 2000-06-29 | 2007-11-16 | 보그-워너 인코포레이티드 | Carbide coated steel article and method for manufacturing same |
| WO2013070314A1 (en) * | 2011-09-13 | 2013-05-16 | Rexnord Industries, Llc | Article with wear- resistant coating and method of forming same |
| WO2020053443A1 (en) | 2018-09-14 | 2020-03-19 | Trd Surfaces Aps | Stainless steel object having a surface modified with chromium |
| CN114345935A (en) * | 2021-12-28 | 2022-04-15 | 浙江精瑞工模具有限公司 | A kind of high speed steel rolling method |
| CN114345935B (en) * | 2021-12-28 | 2024-01-12 | 浙江精瑞工模具有限公司 | High-speed steel rolling method |
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