US2146630A - Alloys - Google Patents
Alloys Download PDFInfo
- Publication number
- US2146630A US2146630A US212135A US21213538A US2146630A US 2146630 A US2146630 A US 2146630A US 212135 A US212135 A US 212135A US 21213538 A US21213538 A US 21213538A US 2146630 A US2146630 A US 2146630A
- Authority
- US
- United States
- Prior art keywords
- silver
- alloy
- copper
- zinc
- alloys
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu as the principal constituent
Definitions
- This invention relates to alloys such as described in my prior United States Patent No. 2,014,083 dated Sept 10, 1935, and comprising silver, copper, cadmium and zinc substantially in the proportion of Per cent Silver 33 Copper 30 Cadmi m 35- Zinc 2
- This alloy gives excellent results but the amount of silver employed makes the alloy rather expensive. Further, this alloy is not as successful as might be desired in brazing stainless steel to stainless steel or other metals.
- My object therefore is to provide an alloy containing a smaller proportion of silver than heretofore used without materially affecting the desirable characteristics of the alloy and increasing its adaptability to the brazing of stainless steel.
- This alloy does not require the use of expensive fiuxes but works well with ordinary borax.
- the melting point varies according to the specific example employed, it will in general be lower than that of most alloys in general use.
- This alloy is well adapted for brazing bronze, brass, copper, silver and gold, nickel, nickelsilver, monel metal and steel; is strong, tough, easily worked, and much cheaper than alloys which use large proportions of precious metals.
- An alloy which consists of silver varying from about 7 to about 25%; copper varying from about 62% to about cadmium varying from about 19% to 31%; and zinc varying from about 9 /2% to 3%.
- An alloy which consists of about 10 silver, about 5'7 /2% copper, about 22% cadmium and about 10% zinc.
- An alloy which consists of about 7%% silver, about 62% copper, about 21% cadmium and about 9 /g% zinc.
- Cad- Melting 40 Example Silver Copper mium Zmc point Percent Percent Percent Percent F. No. L 25 40 31 4 1076 18 48 31 3 1094 15% 48 31 536 1076 12 58 21 9 1149 10% 57% 22 10 1124 9% 60 19 11% 1150 7% 62 21 9M 1150
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dental Preparations (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Radiation-Therapy Devices (AREA)
Description
Patented Feb. 7, 1939 PATENT OFFICE ALLOYS John Johnson, Toronto, Ontario, Canada No Drawing. Application June 6, 1938, Serial No. 212,135
4 Claims.
This invention relates to alloys such as described in my prior United States Patent No. 2,014,083 dated Sept 10, 1935, and comprising silver, copper, cadmium and zinc substantially in the proportion of Per cent Silver 33 Copper 30 Cadmi m 35- Zinc 2 This alloy gives excellent results but the amount of silver employed makes the alloy rather expensive. Further, this alloy is not as successful as might be desired in brazing stainless steel to stainless steel or other metals.
My object therefore is to provide an alloy containing a smaller proportion of silver than heretofore used without materially affecting the desirable characteristics of the alloy and increasing its adaptability to the brazing of stainless steel.
I attain my object by decreasing the proportion of silver in the alloy and also the proportion of cadmium, at the same time increasing the proportion of copper and to a small extent the proportion of zinc.
In practice I have used silver, copper, cadmium and zinc within the following range of proportions:
' Per cent Silver 7 to 25 Copper 62 to 40 Ca m 19 to 31 Zinc 9 /210 3 Specific examples of alloys according to my invention which I have tried are as follows:
Although all the examples disclosed give good results, No. 5 seems to give the best results as the proportion of silver is low enough for economy, great enough for brazing metals generally but not great enough to spoil it for use in brazing stainless steel.
This alloy does not require the use of expensive fiuxes but works well with ordinary borax.
While the melting point varies according to the specific example employed, it will in general be lower than that of most alloys in general use.
This alloy is well adapted for brazing bronze, brass, copper, silver and gold, nickel, nickelsilver, monel metal and steel; is strong, tough, easily worked, and much cheaper than alloys which use large proportions of precious metals.
What I claim as my invention is:
1. An alloy which consists of silver varying from about 7 to about 25%; copper varying from about 62% to about cadmium varying from about 19% to 31%; and zinc varying from about 9 /2% to 3%.
2. An alloy which consists of about 25% silver, about 40% copper, about 31% cadmium and about 4% zinc.
3. An alloy which consists of about 10 silver, about 5'7 /2% copper, about 22% cadmium and about 10% zinc.
4. An alloy which consists of about 7%% silver, about 62% copper, about 21% cadmium and about 9 /g% zinc.
JOHN JOHNSON.
Cad- Melting 40 Example Silver Copper mium Zmc point Percent Percent Percent Percent F. No. L 25 40 31 4 1076 18 48 31 3 1094 15% 48 31 536 1076 12 58 21 9 1149 10% 57% 22 10 1124 9% 60 19 11% 1150 7% 62 21 9M 1150
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US212135A US2146630A (en) | 1938-06-06 | 1938-06-06 | Alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US212135A US2146630A (en) | 1938-06-06 | 1938-06-06 | Alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2146630A true US2146630A (en) | 1939-02-07 |
Family
ID=22789699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US212135A Expired - Lifetime US2146630A (en) | 1938-06-06 | 1938-06-06 | Alloys |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2146630A (en) |
-
1938
- 1938-06-06 US US212135A patent/US2146630A/en not_active Expired - Lifetime
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