GB326820A - Method of casting magnesium or magnesium alloys - Google Patents
Method of casting magnesium or magnesium alloysInfo
- Publication number
- GB326820A GB326820A GB3752528A GB3752528A GB326820A GB 326820 A GB326820 A GB 326820A GB 3752528 A GB3752528 A GB 3752528A GB 3752528 A GB3752528 A GB 3752528A GB 326820 A GB326820 A GB 326820A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- fluoride
- casting
- addition
- magnesium
- 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
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/002—Castings of light metals
- B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
326,820. I. G. Farbenindustrie Akt.- Ges., and Mond, A. L. Dec. 19, 1928. Addition to 187,943 and 219,753. Mould and core materials.-Oxidation of magnesium in casting is prevented by adding to the moulding sand, instead of or in addition to one or more of the protective substances referred to in the parent Specifications, a fluoride which is not hygroscopic or is kept stable, in the presence of heat and moisture, by the addition of another substance. The sand may be mixed with 3 to 5 per cent of ammonium hydrogen fluoride or ammonium silico fluoride the mixture being stored for some time, in the latter case, before use ; or 5 per cent of ammonium fluoride mav be used with 3 per cent of oxalic acid to absorb any decomposition products. This material on coming into contact with the molten metal produces a non-oxidizing gas which forms a protective layer on the casting, as described in Specification 254,302, [Class 82 (ii), Washing granular &c.]. For small castings up to 15 per cent of one of the above substances may be used without other protective substance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3752528A GB326820A (en) | 1928-12-19 | 1928-12-19 | Method of casting magnesium or magnesium alloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3752528A GB326820A (en) | 1928-12-19 | 1928-12-19 | Method of casting magnesium or magnesium alloys |
Publications (1)
Publication Number | Publication Date |
---|---|
GB326820A true GB326820A (en) | 1930-03-19 |
Family
ID=10397131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3752528A Expired GB326820A (en) | 1928-12-19 | 1928-12-19 | Method of casting magnesium or magnesium alloys |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB326820A (en) |
-
1928
- 1928-12-19 GB GB3752528A patent/GB326820A/en not_active Expired
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