US2198762A - Magnesium alloy - Google Patents
Magnesium alloy Download PDFInfo
- Publication number
- US2198762A US2198762A US276716A US27671639A US2198762A US 2198762 A US2198762 A US 2198762A US 276716 A US276716 A US 276716A US 27671639 A US27671639 A US 27671639A US 2198762 A US2198762 A US 2198762A
- Authority
- US
- United States
- Prior art keywords
- alloy
- magnesium
- nickel
- steel
- magnesium alloy
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/02—Alloys based on magnesium with aluminium as the next major constituent
Definitions
- the invention relates to the production of In all cases, the alloys are produced in" the magnesium alloys. following way. First of all an alloy as prescribed
- the magnesium alloys hitherto known for castin co-pending application Serial No. 243,657 is ing in sand and metal moulds do not exhibit produced with the requisite quantities of aluminii suflicient tensile strength even if they are subum, zine, manganese, nickel and steel, and the 6 jected to improvement, viz. quick cooling folappropriate amount of magnesium as specified lowed by re-heating, and they also exhibit dein the said application.
- Pigs of this pre-alloy are fects in respect of adequate ductility so that the placed in the furnace and are coveerd with a possibility of using them is still very limited.
- covering salt of known composition which com-
- the object of the present invention is to proprises magnesium chloride.
- the material 10 vide an improved magnesium alloy in which these has liquefied pig magnesium is added to the defects do not appear. requisite amount and a fresh covering of salt According to the present invention this object is applied.
- a temperature of about 950 C. is attained by an alloy of magnesium with from has been reached heating is discontinued and the v 3 to 12% of the pro-alloy or master-batch alloy liquid metal which is somewhat superheated is according to co-pending application Serial No. thoroughly stirred and is covered again.
- After 24 57. which pre-alloy con is s f 1 Per cent the temperature has dropped to about 800 C.
- the alloy according to the invention thus has Per cent a composition falling within the following Aluminium 1.23 5.22 limits: cent Zinc 0.78 3.6 Aluminium 1.23 5.22 af '7 Zinc 0.7a as M0 Manganese 0.045- 036 S eel Nickel 0.09 0.72 Magneslum Steel 0.06 0.60 i
- the comp sition may be as follows. Per cent 5;; 0'1 Aluminium 4 Nickel 02 fi 8 Steel 0.2
- An alloy which has high ductility in association Per cent with moderate tensile strength has the following Aluminium 2. commsltion: Percent zine 3.5 Aluminium i 2 Manganese 03 Zinc 3.5 -Nickel 0.5 1 Manganese 0.3 Steel 0.1 Nickel 0.5 Magnesium 93.6 Steel 0.1
Description
Patented Apr. 30, 1940 I v UNITED STATES PATENT OFFICE No Drawing. Application May 31, 1939, Serial No. 276,716. In Switzerland September 16,
3 Claims. (0!. 75-168) The invention relates to the production of In all cases, the alloys are produced in" the magnesium alloys. following way. First of all an alloy as prescribed The magnesium alloys hitherto known for castin co-pending application Serial No. 243,657 is ing in sand and metal moulds do not exhibit produced with the requisite quantities of aluminii suflicient tensile strength even if they are subum, zine, manganese, nickel and steel, and the 6 jected to improvement, viz. quick cooling folappropriate amount of magnesium as specified lowed by re-heating, and they also exhibit dein the said application. Pigs of this pre-alloy are fects in respect of adequate ductility so that the placed in the furnace and are coveerd with a possibility of using them is still very limited. covering salt of known composition which com- The object of the present invention is to proprises magnesium chloride. When the material 10 vide an improved magnesium alloy in which these has liquefied, pig magnesium is added to the defects do not appear. requisite amount and a fresh covering of salt According to the present invention this object is applied. After a temperature of about 950 C. is attained by an alloy of magnesium with from has been reached heating is discontinued and the v 3 to 12% of the pro-alloy or master-batch alloy liquid metal which is somewhat superheated is according to co-pending application Serial No. thoroughly stirred and is covered again. After 24 57. which pre-alloy con is s f 1 Per cent the temperature has dropped to about 800 C. the
Aluminium 435.41 slag is removed and the alloy is cast in moulds z 2 .39 of the desired dimensions at about 700 C. 4 Manganese 1.5- 3 I claim: Nickel 8 6 1. an article of new manufacture, a mag- Steel 5 2 nesium" alloy having a composition falling within Magnesium 21' --18 the range: v
i The alloy according to the invention thus has Per cent a composition falling within the following Aluminium 1.23 5.22 limits: cent Zinc 0.78 3.6 Aluminium 1.23 5.22 af '7 Zinc 0.7a as M0 Manganese 0.045- 036 S eel Nickel 0.09 0.72 Magneslum Steel 0.06 0.60 i
Magnesium 90.16 -97.63 5 f f gff of new manufacture an alloy For producing an alloy within the foregoing l P t range which after being cast in sand moulds er a exhibits high tensile strength and high ductility, g 3 the comp sition may be as follows. Per cent 5;; 0'1 Aluminium 4 Nickel 02 fi 8 Steel 0.2
anganese- M mum Nickel v 0.2 agn steel 3. As an article of new manufacture, an alloy Magnesium consisting of: ,n
An alloy which has high ductility in association Per cent with moderate tensile strength has the following Aluminium 2. commsltion: Percent zine 3.5 Aluminium i 2 Manganese 03 Zinc 3.5 -Nickel 0.5 1 Manganese 0.3 Steel 0.1 Nickel 0.5 Magnesium 93.6 Steel 0.1
Magnesium -1 93.6 r FRITZ CHRIS'I'EN.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH2198762X | 1938-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2198762A true US2198762A (en) | 1940-04-30 |
Family
ID=4567958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US276716A Expired - Lifetime US2198762A (en) | 1938-09-16 | 1939-05-31 | Magnesium alloy |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2198762A (en) |
-
1939
- 1939-05-31 US US276716A patent/US2198762A/en not_active Expired - Lifetime
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