GB586895A - Improvements in and relating to the manufacture of sintered metal products - Google Patents
Improvements in and relating to the manufacture of sintered metal productsInfo
- Publication number
- GB586895A GB586895A GB2307744A GB2307744A GB586895A GB 586895 A GB586895 A GB 586895A GB 2307744 A GB2307744 A GB 2307744A GB 2307744 A GB2307744 A GB 2307744A GB 586895 A GB586895 A GB 586895A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sintering
- iron
- powders
- hours
- alloy
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
In a process for the manufacture of a sintered body of iron or iron alloy powder and copper powder from a highly compressed mixture of the powders, the temperature of sintering is intermediate the melting points of the two metals and the duration of sintering is such as to ensure that a sufficient proportion of the lower melting-point metal is brought to the liquid phase to alloy with the iron and substantially eliminate voids. The iron may contain alloying constituents such as nickel, manganese, chromium, carbon, silicon in amounts of not more than 5 per cent. by weight. The powders are thoroughly mixed in a ball mill either dry or in a liquid such as acetone and are compacted at a pressure of from 20-50 tons per square inch, which may be applied before or during sintering. After sintering the product may be mechanically worked. As the alloy possesses age-hardening properties, the hardness and tensile strength may be altered by controlling the sintering temperature and also the rate of cooling which may vary from sudden quenching to slow cooling over a period of twelve hours. The powders may contain one or both metals in the form of oxide, carbonate or chloride which is converted to the metal as by heating in a hydrogen atmosphere. As a specific example a mixture containing 25 per cent. copper was annealed at 600 DEG C. in a hydrogen atmosphere for one or two hours, compressed at 30 tons per square inch and sintered for two hours at 1130 DEG C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2307744A GB586895A (en) | 1944-11-20 | 1944-11-20 | Improvements in and relating to the manufacture of sintered metal products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2307744A GB586895A (en) | 1944-11-20 | 1944-11-20 | Improvements in and relating to the manufacture of sintered metal products |
Publications (1)
Publication Number | Publication Date |
---|---|
GB586895A true GB586895A (en) | 1947-04-03 |
Family
ID=10189749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2307744A Expired GB586895A (en) | 1944-11-20 | 1944-11-20 | Improvements in and relating to the manufacture of sintered metal products |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB586895A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3441409A (en) * | 1967-01-26 | 1969-04-29 | Chase Brass & Copper Co | Method of producing a corrosion resistant alloy of cu-ni by liquid phase sintering |
CN104451345A (en) * | 2014-12-16 | 2015-03-25 | 常熟市东方特种金属材料厂 | Preparation method of high-strength iron-carbon alloy material |
CN111822700A (en) * | 2020-07-24 | 2020-10-27 | 西安华山钨制品有限公司 | Method for eliminating internal quality defects of tungsten alloy |
CN112359263A (en) * | 2020-11-10 | 2021-02-12 | 江西理工大学 | Biodegradable iron alloy with stress-induced martensitic transformation and preparation method thereof |
-
1944
- 1944-11-20 GB GB2307744A patent/GB586895A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3441409A (en) * | 1967-01-26 | 1969-04-29 | Chase Brass & Copper Co | Method of producing a corrosion resistant alloy of cu-ni by liquid phase sintering |
CN104451345A (en) * | 2014-12-16 | 2015-03-25 | 常熟市东方特种金属材料厂 | Preparation method of high-strength iron-carbon alloy material |
CN111822700A (en) * | 2020-07-24 | 2020-10-27 | 西安华山钨制品有限公司 | Method for eliminating internal quality defects of tungsten alloy |
CN111822700B (en) * | 2020-07-24 | 2022-02-18 | 西安华山钨制品有限公司 | Method for eliminating internal quality defects of tungsten alloy |
CN112359263A (en) * | 2020-11-10 | 2021-02-12 | 江西理工大学 | Biodegradable iron alloy with stress-induced martensitic transformation and preparation method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3334992A (en) | Vanadium containing addition agent and process for producing same | |
US3183127A (en) | Heat treatable tool steel of high carbide content | |
US2588007A (en) | Titanium-molybdenum-chromium alloys | |
GB586895A (en) | Improvements in and relating to the manufacture of sintered metal products | |
US2840891A (en) | High temperature structural material and method of producing same | |
US3810756A (en) | Method of making valve seat rings from a mixture of c,pb and a pre-alloy of fe-co-ni-mo by powder metallurgy | |
US2763918A (en) | Process of making a ferroalloying material and product obtained thereby | |
US2809888A (en) | Cast iron with high creep resistance and method for making same | |
US2741827A (en) | Process for the manufacture of piston rings by powder metallurgy and articles obtained thereby | |
GB677413A (en) | Improvements in titanium alloys | |
US2947624A (en) | High temperature alloy | |
GB1013190A (en) | Process for producing a low-temperature tough steel | |
US2509281A (en) | Production of a ferrous composition and article therefor | |
GB591225A (en) | Improvements in or relating to the production of magnesium base alloys | |
US2289570A (en) | Method of making powdered material and the usage thereof | |
US3030204A (en) | Process of making ferroalloys | |
US2606110A (en) | Reduction of the powders of the oxides of iron or iron alloys | |
US1304224A (en) | Louis fenn vogt | |
US3725051A (en) | Method of purifying low-carbon ferrochrome | |
US2343978A (en) | Manufacture of nonporous metal articles | |
US915172A (en) | Manufacture of alloys of silicon. | |
DE675871C (en) | Fritted metal bodies | |
US836757A (en) | Process of improving the magnetic qualities of iron-silicon-manganese alloys. | |
SU530771A1 (en) | The composition of the cermet tape | |
GB645435A (en) | Reduction of the powders of the oxides of iron or iron alloys |