GB870745A - Improvements in making fine grained castings - Google Patents
Improvements in making fine grained castingsInfo
- Publication number
- GB870745A GB870745A GB29631/59A GB2963159A GB870745A GB 870745 A GB870745 A GB 870745A GB 29631/59 A GB29631/59 A GB 29631/59A GB 2963159 A GB2963159 A GB 2963159A GB 870745 A GB870745 A GB 870745A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pattern
- catalyst
- coated
- casting
- mould
- 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
- 238000005266 casting Methods 0.000 title abstract 6
- 239000003054 catalyst Substances 0.000 abstract 5
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 abstract 3
- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- ASKVAEGIVYSGNY-UHFFFAOYSA-L cobalt(ii) hydroxide Chemical compound [OH-].[OH-].[Co+2] ASKVAEGIVYSGNY-UHFFFAOYSA-L 0.000 abstract 2
- 230000006911 nucleation Effects 0.000 abstract 2
- 238000010899 nucleation Methods 0.000 abstract 2
- UPWOEMHINGJHOB-UHFFFAOYSA-N oxo(oxocobaltiooxy)cobalt Chemical compound O=[Co]O[Co]=O UPWOEMHINGJHOB-UHFFFAOYSA-N 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 229910000531 Co alloy Inorganic materials 0.000 abstract 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Catalysts (AREA)
Abstract
870,745. Casting processes. HOWE SOUND CO. Aug. 31, 1959 [Nov. 21, 1958], No. 29631/59. Class 83 (1). In a method of making fine-grained castings, a nucleation catalyst is applied to the surface of a pattern so that on removing the pattern from the mould at least a portion of said catalyst is left on the mould surface. In particular examples, platinum is the catalyst when casting a refractory cobalt alloy containing nickel and chromium. In another example, when casting the same alloy, a wax pattern was coated with an aqueous sol of cobaltous hydroxide. After elimination of the wax pattern the cobaltous hydroxide is reduced to the more effective metallic form by introducing n-heptane into the hot mould. In further examples, the pattern was coated with a refractory dip coat containing cobaltic oxide which may or may not be subsequently reduced to metallic form by trichlorethylene. Part, only of the pattern may be coated with the catalyst, or catalysts of different, degrees of effectiveness may be used at different parts of the pattern to control differently the degree of nucleation of different parts of the castings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US775345A US3019497A (en) | 1958-11-21 | 1958-11-21 | Making fine grained castings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB870745A true GB870745A (en) | 1961-06-21 |
Family
ID=25104116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29631/59A Expired GB870745A (en) | 1958-11-21 | 1959-08-31 | Improvements in making fine grained castings |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3019497A (en) |
| GB (1) | GB870745A (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3247557A (en) * | 1962-02-26 | 1966-04-26 | Reynolds Metals Co | Method of solidifying molten metal |
| BE627229A (en) * | 1962-04-02 | |||
| US3259948A (en) * | 1962-04-09 | 1966-07-12 | Howe Sound Co | Making fine grained castings |
| US3239899A (en) * | 1962-05-04 | 1966-03-15 | Arthur F Johnson | Separating metals from alloys |
| US3158912A (en) * | 1962-08-09 | 1964-12-01 | Gen Electric | Controlled grain size casting method |
| US3216078A (en) * | 1962-08-30 | 1965-11-09 | Magnet Cove Barium Corp | Process for casting steel and compositions of matter for use therein |
| US3308515A (en) * | 1962-10-29 | 1967-03-14 | Gordon K Turnbull | Method for cast grain refinement of steel |
| NL6410825A (en) * | 1963-11-21 | 1965-05-24 | ||
| US3157926A (en) * | 1964-02-14 | 1964-11-24 | Howe Sound Co | Making fine grained castings |
| US3654987A (en) * | 1966-11-01 | 1972-04-11 | Full Mold Process Inc | Gasifiable casting care |
| DE3703416A1 (en) * | 1987-02-05 | 1988-08-18 | Thyssen Guss Ag | Investment casting shell mold for aluminum or WHOSE ALLOYS |
| DE3821204A1 (en) * | 1988-06-23 | 1989-12-28 | Winkelstroeter Dentaurum | Inoculant mixture for coating casting moulds for the production of dental cast skeletons |
| GB9618216D0 (en) * | 1996-08-30 | 1996-10-09 | Triplex Lloyd Plc | Method of making fine grained castings |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1033489A (en) * | 1911-04-15 | 1912-07-23 | Arthur W Tatham | Art of making wax patterns for castings for dental work. |
| US2042735A (en) * | 1932-05-02 | 1936-06-02 | Vereinigte Stahlwerke Ag | Method of avoiding coarse crystallization at the solidification of metallic castings |
| FR755073A (en) * | 1932-05-02 | 1933-11-18 | Ver Stahlwerke Ag | Process to prevent coarse-grained crystallization during solidification of cast metal parts |
| US2836867A (en) * | 1950-12-04 | 1958-06-03 | Morris Bean & Company | Process of making mold |
| US2743495A (en) * | 1951-05-07 | 1956-05-01 | Nat Supply Co | Method of making a composite cutter |
| US2728124A (en) * | 1952-03-26 | 1955-12-27 | Gifford Wood Co | Method of forming cylindrical shell with abrasive internal linings |
| BE544166A (en) * | 1955-01-05 | |||
| US2880486A (en) * | 1956-05-28 | 1959-04-07 | Edgar C Wallace | Method of making investment castings |
| US2951272A (en) * | 1958-09-22 | 1960-09-06 | Gen Electric | Method and apparatus for producing grain-oriented ingots |
-
1958
- 1958-11-21 US US775345A patent/US3019497A/en not_active Expired - Lifetime
-
1959
- 1959-08-31 GB GB29631/59A patent/GB870745A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3019497A (en) | 1962-02-06 |
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