GB1303471A - - Google Patents
Info
- Publication number
- GB1303471A GB1303471A GB1303471DA GB1303471A GB 1303471 A GB1303471 A GB 1303471A GB 1303471D A GB1303471D A GB 1303471DA GB 1303471 A GB1303471 A GB 1303471A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pouring
- maintained
- coating
- moulds
- wall
- 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
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
1303471 Coating and lining foundry moulds AMSTED INDUSTRIES Inc 10 March 1970 11507/70 Heading B3F [Also in Division C3] A graphite mould is maintained at 120- 205‹ C. while a coating, 0À013-0À115 cm. thick, including refractory oxide (such as Al 2 O 3 , SiO 2 , ZrO 2 or combinations of these) is applied, e.g. by spraying, to the entire internal casting surfaces and is then maintained at above 100‹ C. until molten steel to be cast is poured into the cavity. In the case of pouring into several such moulds the rate of pouring, e.g. by bottom pouring, is varied between 1À28 and 12À82 cm. rise per sec. according to the steel and according, inversely, to wall to wall dimensions of the cavities. The size of refractory particles may be between 2 and 30 microns. Colloidal magnesium aluminium silicate, colloidal alumina and ball clay binders with dispersing and suspending agents are used in aqueous suspensions to be sprayed on in layers.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1150770 | 1970-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1303471A true GB1303471A (en) | 1973-01-17 |
Family
ID=9987519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1303471D Expired GB1303471A (en) | 1970-03-10 | 1970-03-10 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1303471A (en) |
-
1970
- 1970-03-10 GB GB1303471D patent/GB1303471A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |