GB611466A - Improvements relating to powder metallurgical processes - Google Patents
Improvements relating to powder metallurgical processesInfo
- Publication number
- GB611466A GB611466A GB1315946A GB1315946A GB611466A GB 611466 A GB611466 A GB 611466A GB 1315946 A GB1315946 A GB 1315946A GB 1315946 A GB1315946 A GB 1315946A GB 611466 A GB611466 A GB 611466A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cadmium
- powder
- wires
- turbine blades
- former
- 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
- 239000000843 powder Substances 0.000 title abstract 4
- 238000010310 metallurgical process Methods 0.000 title 1
- 229910052793 cadmium Inorganic materials 0.000 abstract 5
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 abstract 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 3
- 238000005245 sintering Methods 0.000 abstract 3
- 229910052718 tin Inorganic materials 0.000 abstract 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract 2
- 239000001257 hydrogen Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 229910052738 indium Inorganic materials 0.000 abstract 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 238000004663 powder metallurgy Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Powder Metallurgy (AREA)
Abstract
611,466. Making turbine blades; powder metallurgy. GENERAL ELECTRIC CO., Ltd., and JENKINS, I. May 1, 1946, No. 13159. [Classes 83 (ii) and 83 (iv)] In a method of forming ducts, holes or voids in a body of sintered metal powder, particularly cooling ducts of very fine bore in gas-turbine blades, suitably shaped formers at least partly metallic, are introduced into the powder before the final sintering process, the formers being composed of, or convertible into a material fusible at a temperature lower than the final sintering temperature. In particular applications, pure tin wires of 0.015 in. diameter and 4 in. long were pressed in molybdenum in a mould 4 in. by # in. under 35 tons per sq. in. pressure to produce a bar approximately <SP>5</SP>/ 16 in. thick, the bar then being heated in a hydrogen atmosphere to above the fusing point of the tin. Cadmium wires of a similar size were pressed into a compacted bar of an alloy of mainly chromium and cobalt, the compact being held at the temperature of the boiling point of cadmium for some hours in a hydrogen atmosphere before the final sintering process. The choice of former material is governed by the conditions of heat treatment and composition of the main body, cadmium being stated to be suitable when heat treatment takes place in an oxidising atmosphere. The former may be of complicated shape and either solid or hollow. In addition to tin and cadmium, zinc or indium may be used for the former. In the manufacture of ducted gas-turbine blades in accordance with the invention, a number of wires of, for example, cadmium would be disposed in the powder body running longitudinally along the blade. Specifications 452,503, [Group II], and 573,740 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1315946A GB611466A (en) | 1946-05-01 | 1946-05-01 | Improvements relating to powder metallurgical processes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1315946A GB611466A (en) | 1946-05-01 | 1946-05-01 | Improvements relating to powder metallurgical processes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB611466A true GB611466A (en) | 1948-10-29 |
Family
ID=10017945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1315946A Expired GB611466A (en) | 1946-05-01 | 1946-05-01 | Improvements relating to powder metallurgical processes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB611466A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2628166A (en) * | 1949-02-28 | 1953-02-10 | Haller John | Process of making chambered articles containing a movable element |
| US2685507A (en) * | 1949-03-18 | 1954-08-03 | Michigan Powdered Metal Produc | Process of making porous chambered bearing |
| US2695230A (en) * | 1949-01-10 | 1954-11-23 | Michigan Powdered Metal Produc | Process of making powdered metal article |
| US2695231A (en) * | 1949-04-16 | 1954-11-23 | Michigan Powdered Metal Produc | Process of making fluid-permeable article |
| US2706693A (en) * | 1951-02-10 | 1955-04-19 | Allied Prod Corp | Process of impregnating metal bearings |
| US2737456A (en) * | 1951-02-09 | 1956-03-06 | Allied Prod Corp | Process of making powdered metal articles without briquetting |
| US2751293A (en) * | 1951-07-31 | 1956-06-19 | Allied Prod Corp | Process of making perforated powdered metal article |
| US2803046A (en) * | 1952-08-08 | 1957-08-20 | Joseph B Brennan | Apparatus for making articles from powdered metal briquets |
| DE1091409B (en) * | 1955-05-31 | 1960-10-20 | Birmingham Small Arms Co Ltd | Method and device for the production of powder metallurgical objects provided with channels |
-
1946
- 1946-05-01 GB GB1315946A patent/GB611466A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2695230A (en) * | 1949-01-10 | 1954-11-23 | Michigan Powdered Metal Produc | Process of making powdered metal article |
| US2628166A (en) * | 1949-02-28 | 1953-02-10 | Haller John | Process of making chambered articles containing a movable element |
| US2685507A (en) * | 1949-03-18 | 1954-08-03 | Michigan Powdered Metal Produc | Process of making porous chambered bearing |
| US2695231A (en) * | 1949-04-16 | 1954-11-23 | Michigan Powdered Metal Produc | Process of making fluid-permeable article |
| US2737456A (en) * | 1951-02-09 | 1956-03-06 | Allied Prod Corp | Process of making powdered metal articles without briquetting |
| US2706693A (en) * | 1951-02-10 | 1955-04-19 | Allied Prod Corp | Process of impregnating metal bearings |
| US2751293A (en) * | 1951-07-31 | 1956-06-19 | Allied Prod Corp | Process of making perforated powdered metal article |
| US2803046A (en) * | 1952-08-08 | 1957-08-20 | Joseph B Brennan | Apparatus for making articles from powdered metal briquets |
| DE1091409B (en) * | 1955-05-31 | 1960-10-20 | Birmingham Small Arms Co Ltd | Method and device for the production of powder metallurgical objects provided with channels |
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