GB704004A - Improvements relating to precision casting by lost-wax process - Google Patents
Improvements relating to precision casting by lost-wax processInfo
- Publication number
- GB704004A GB704004A GB5755/50A GB575550A GB704004A GB 704004 A GB704004 A GB 704004A GB 5755/50 A GB5755/50 A GB 5755/50A GB 575550 A GB575550 A GB 575550A GB 704004 A GB704004 A GB 704004A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pattern
- cavity
- wax
- fine
- coarse
- 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
- 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
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/165—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents in the manufacture of multilayered shell moulds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
704,004. Moulds. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Dec. 7, 1951 [March 9, 1951], No. 5755/51. Class 83 (1) In precision casting by the lost-wax process, an open mould of coarse refractory material is formed by investing a wax pattern having a general configuration similar to that of the final pattern 3, thus forming a cavity 2 slightly larger than the final pattern, drying the investment and removing the wax, placing the final pattern 3 in the cavity so formed, and filling the space between the pattern and cavity with investment 5 of fine refractory material to provide the accurate moulding cavity. The minimum distance between the pattern 3 and the cavity 2 is from # inch to # inch. The coarse material may be fire-brick, silica sand and silica flour with an ethyl silicate liquid bonding mix, and the fine material may be a slurry formed of 100 c.cs. of liquid bonding agent to one pound of dry mix of 40 per cent silica flour, 55 per cent silica sand and 5 per cent accelerator. After pouring the fine investment 5 some coarse material 6 is added above it and the mould is vibrated to cause the coarse particles to penetrate the fine material. The composite slurry is then dried, the wax melted out and the mould baked at 1000‹ C. The final wax pattern may be coated with fine refractory material before being invested.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB301032X | 1951-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB704004A true GB704004A (en) | 1954-02-17 |
Family
ID=10302311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5755/50A Expired GB704004A (en) | 1951-03-09 | 1951-03-09 | Improvements relating to precision casting by lost-wax process |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH301032A (en) |
| GB (1) | GB704004A (en) |
-
1951
- 1951-03-09 GB GB5755/50A patent/GB704004A/en not_active Expired
-
1952
- 1952-02-20 CH CH301032D patent/CH301032A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH301032A (en) | 1954-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1309915A (en) | Bonding liquids for refractory material | |
| GB580058A (en) | Improvements relating to casting moulds | |
| GB654817A (en) | Methods of making moulding shapes from sand and other powdered, granular, pasty, or fluent material | |
| GB704004A (en) | Improvements relating to precision casting by lost-wax process | |
| GB722816A (en) | Improvements relating to precision casting by the lost-wax process | |
| US2851752A (en) | High strength investment casting mold | |
| GB712276A (en) | Preparation of moulds for precision casting | |
| GB738981A (en) | Improved process of manufacturing precision casting moulds for metals | |
| GB1434370A (en) | Ceramic sheel mould | |
| RU2445185C1 (en) | Mix for making casting cores and moulds | |
| GB672535A (en) | Improvements in or relating to refractory moulds | |
| GB692030A (en) | Improvements relating to moulding mixtures | |
| US2389543A (en) | Foundry composition | |
| GB660604A (en) | Improvements relating to casting metals | |
| JPS6358082B2 (en) | ||
| GB715020A (en) | Improvements relating to moulds for casting metals | |
| US2861308A (en) | Refractory mold having high permeability, composition for making, and method of making same | |
| JPS5645250A (en) | Fixing method of water-soluble mold | |
| SU141993A1 (en) | Method of making casting molds | |
| GB711940A (en) | Improved cire-perdue precision casting process | |
| SU113038A2 (en) | A way to accurately cast shell forms | |
| SU91381A1 (en) | The way to accurately cast dentures | |
| GB725318A (en) | Moulds for metal castings | |
| GB1233889A (en) | ||
| GB688652A (en) | Improvements in or relating to refractory moulds for use in the manufacture of cast metal articles |