GB668897A - Improvements relating to moulds for casting metals - Google Patents
Improvements relating to moulds for casting metalsInfo
- Publication number
- GB668897A GB668897A GB31199/49A GB3119949A GB668897A GB 668897 A GB668897 A GB 668897A GB 31199/49 A GB31199/49 A GB 31199/49A GB 3119949 A GB3119949 A GB 3119949A GB 668897 A GB668897 A GB 668897A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- hot
- moulds
- screws
- cold
- 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
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
- B22D13/101—Moulds
- B22D13/102—Linings for moulds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
668,897. Casting-machines; mould and core materials; moulds. BURCHARTZ, J. Dec. 5, 1949 [May 18, 1949], No. 31199/49. Class 83 (i). To reduce the rate of cooling of cast iron in a heated centrifugal pipe-mould and to prolong its life it is coated internally with a refractory or insulating material bonded with a substance which is liquid at 80‹ to 200‹ C. and is burnt fast to the mould by heating to 300‹ to 500‹ C. Sulphite liquor, sugar solution, colophony are suitable binders and graphite, chamotte, kieselguhr and tar derivatives are suitable refractories. A second coating of the same or a similar mixture or of metallic materials may be applied. The mixture may be in granular or liquid form and be applied hot or cold to a hot or cold mould. The inner face of the unlined mould may be left rough or roughly machined or it may be roughened by a hot gas flame or burning magnesium, electron, &c. The coated mould may be brought to the required tempera. ture, e.g. 350‹ to 450‹ C. before each casting operation. The mould 1 rests on four rollers 2 journalled in a slide 3 vertically adjusted on a base 4 by screws 5, supported by inserted packing pieces, not shown, and clamped by screws 8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE668897X | 1949-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB668897A true GB668897A (en) | 1952-03-26 |
Family
ID=6590111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31199/49A Expired GB668897A (en) | 1949-05-18 | 1949-12-05 | Improvements relating to moulds for casting metals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB668897A (en) |
-
1949
- 1949-12-05 GB GB31199/49A patent/GB668897A/en not_active Expired
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