GB1091101A - Production of powder,strip and other metal products from refined molted metal - Google Patents
Production of powder,strip and other metal products from refined molted metalInfo
- Publication number
- GB1091101A GB1091101A GB44642/64A GB4464264A GB1091101A GB 1091101 A GB1091101 A GB 1091101A GB 44642/64 A GB44642/64 A GB 44642/64A GB 4464264 A GB4464264 A GB 4464264A GB 1091101 A GB1091101 A GB 1091101A
- Authority
- GB
- United Kingdom
- Prior art keywords
- molten metal
- strip
- particles
- atomizer
- powder
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Metal Rolling (AREA)
- Powder Metallurgy (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Soft Magnetic Materials (AREA)
Abstract
In a process of granulating molten iron or steel to form particles of irregular and angular shape, the molten metal is refined and discharged into an atomizer where the stream of molten metal is atomized with high pressure solid flat streams of a liquid such as water and the particles are then dried. As shown in Figs. 1A and 1B refining is effected in an open hearth furnace, L.D. converter or electric furnace 11, the molten metal is discharged into ladle 12 and then into atomizer 13. The streams of molten metal from openings 18 in the atomizer are atomized by flat sheets of water issuing from nozzles 19 at a pressure greater than 400 p.s.i., the nozzles being positioned at an angle of 26 DEG to the vertical to prevent frothing. Vacuum degassing of the molten metal may be effected by evacuating the atomizer or alternatively a hydrogen or argon atmosphere may be used. The formed particles are pumped to a dewatering unit 26, dried and screened at 30 in a controlled <PICT:1091101/C6-C7/1> atmosphere of argon or nitrogen and particles of graded sizes are stored at 33 under nitrogen. Alternatively the particles may be diverted from screening section 30 into storage bags at 56 and stored with silica gel. The powder from store 33 is blended at 36 with e.g. detergents, activators, lubricants, binders and metal and alloy powders such as copper and steel to adjust the carbon content. The blended powder is preheated at 38 to 950 DEG - 1200 DEG F., and rolled at 39 to a green strip of 70 - 95% density. The powder is fed from the preheater via a series of evacuated tubes and the feed is controlled magnetically and by vibrators Figs. 4 and 5 (not shown). The green strip is heated at 42 to 1600 DEG - 2200 DEG F., and rolled to 100% density at 43. Treatments such as carburizing, decarburizing, reduction, nitriding, chromizing, nickelizing and infiltration with copper may be carried out in furnace 42. Further hot rolling is then carried out at 45 and 46 to a minimum thickness of 0.010" and the strip is then cooled by sprays 50. All these operations are performed in an argon or nitrogen atmosphere in enclosure 48 and the strip is then cold rolled at 51 and sheared at 52. The process is particularly exemplified in the production of low carbon steel for electrical applications and also for stainless steel.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US321246A US3281893A (en) | 1963-11-04 | 1963-11-04 | Continuous production of strip and other metal products from molten metal |
US402480A US3334408A (en) | 1964-10-08 | 1964-10-08 | Production of powder, strip and other metal products from refined molten metal |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1091101A true GB1091101A (en) | 1967-11-15 |
Family
ID=26982881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB44642/64A Expired GB1091101A (en) | 1963-11-04 | 1964-11-02 | Production of powder,strip and other metal products from refined molted metal |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS4917949B1 (en) |
DE (1) | DE1458127A1 (en) |
ES (1) | ES305622A1 (en) |
GB (1) | GB1091101A (en) |
IL (1) | IL22399A (en) |
NL (1) | NL6412753A (en) |
SE (1) | SE315370B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0124541A1 (en) * | 1982-10-28 | 1984-11-14 | Oscar Balassa | Processing of metal. |
GB2393451A (en) * | 2002-09-26 | 2004-03-31 | Qinetiq Ltd | A Method of Manufacture of Metal Alloy Sheet |
CN111593286A (en) * | 2020-05-09 | 2020-08-28 | 陈辉 | High-performance powder steel thermal spraying deposition forming process |
CN112620639A (en) * | 2020-11-18 | 2021-04-09 | 江西鑫润材料科技有限公司 | Alloy powder manufacturing equipment |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3858275B2 (en) * | 1997-08-29 | 2006-12-13 | セイコーエプソン株式会社 | Metal powder manufacturing method and apparatus by atomizing method |
JP7162171B2 (en) * | 2018-12-17 | 2022-10-28 | パナソニックIpマネジメント株式会社 | Powder sintering equipment |
-
1964
- 1964-11-02 GB GB44642/64A patent/GB1091101A/en not_active Expired
- 1964-11-03 IL IL22399A patent/IL22399A/en unknown
- 1964-11-03 NL NL6412753A patent/NL6412753A/xx unknown
- 1964-11-03 SE SE13225/64A patent/SE315370B/xx unknown
- 1964-11-04 DE DE19641458127 patent/DE1458127A1/en active Pending
- 1964-11-04 JP JP39062447A patent/JPS4917949B1/ja active Pending
-
1965
- 1965-02-01 ES ES0305622A patent/ES305622A1/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0124541A1 (en) * | 1982-10-28 | 1984-11-14 | Oscar Balassa | Processing of metal. |
EP0124541A4 (en) * | 1982-10-28 | 1985-04-24 | Oscar Balassa | Processing of metal. |
US4705466A (en) * | 1982-10-28 | 1987-11-10 | Oscar Balassa | Method and apparatus for producing rolled product from metal droplets |
GB2393451A (en) * | 2002-09-26 | 2004-03-31 | Qinetiq Ltd | A Method of Manufacture of Metal Alloy Sheet |
CN111593286A (en) * | 2020-05-09 | 2020-08-28 | 陈辉 | High-performance powder steel thermal spraying deposition forming process |
CN112620639A (en) * | 2020-11-18 | 2021-04-09 | 江西鑫润材料科技有限公司 | Alloy powder manufacturing equipment |
CN112620639B (en) * | 2020-11-18 | 2023-02-07 | 江西鑫润材料科技有限公司 | Alloy powder manufacturing equipment |
Also Published As
Publication number | Publication date |
---|---|
DE1458127B2 (en) | 1970-10-29 |
IL22399A (en) | 1968-04-25 |
ES305622A1 (en) | 1965-05-01 |
SE315370B (en) | 1969-09-29 |
NL6412753A (en) | 1965-05-06 |
DE1458127A1 (en) | 1968-12-05 |
JPS4917949B1 (en) | 1974-05-07 |
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