US1175724A - Chromium alloys. - Google Patents
Chromium alloys. Download PDFInfo
- Publication number
- US1175724A US1175724A US70544212A US1912705442A US1175724A US 1175724 A US1175724 A US 1175724A US 70544212 A US70544212 A US 70544212A US 1912705442 A US1912705442 A US 1912705442A US 1175724 A US1175724 A US 1175724A
- Authority
- US
- United States
- Prior art keywords
- chromium
- copper
- nickel
- per cent
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Fuses (AREA)
Description
1,1753% Ho Drawing.
WIIIIBUB B. DRIVER,v DIE-EAST ORANGE, NEW JERSEY.
cnnomum annoys.
To all whom it may concern Be it known that I, WILBUR B. DRIVER, a
citizen of the United States, and a resident of the city ofEast Orange, State of- New Jersey, (whose post-oflice address is Middlesex' street,.Ha1 -rison, Newark, New J ersey,) have invented new and useful Chromium Alloys, which invention is fully set forth in the following specification;
' My invention relates to chromium alloys intended primarily for use as an electricalsome other metal such as manganese or nickel,,the chromium may be added in substantial quantitie (say, from about ten per cent. to almost twenty per cent.) and yet produce an alloy which is ductile and malleable, and which. affords a relatively highresistance to oxidation; moreover, the alloys of this newclass present a high electrical resistance and have a low temperaturecoefiicient, so that they are particularly suitable for electrical-resistance purposes.
Other things being equal, increase in the percentage of chromium increases the resistance .to oxidation, but decreases the workability of the composition. With as much as twenty per cent. of chromium, the mate-' rial appears rather difiicult to work; but with around ten per cent. of chromium, it works easily, and such 'ten per cent. chromium alloys are found-to be very suitable for electrical-resistance purposes. Even an per amount of chromium as low as two cent. produces a'markerl efiect.
Broadly my invention contemplates an allloy containing chrom1um,' niore specifically chromium and copper. {I prefer, however,
Specification of Letters Patent. Application filed June 24,1912. Serial No. 705,442.
the material is practically valueless, yet when the chromium is to be added to a mixture or alloy of copper and Patented Mar. 1a, 1916 an alloy comprising chromium and copper with some other metal or metals, and particul'arly such three-metal alloys in which there is a substantial percentage of the chro mium. The preferred amountof chromium is around ten per cent., although'the per- Y centage may vary as between, say, two per cent. and twenty per cent.
As one example, take about parts, by weight, of copper, about 45 parts of nickel,
'and about 10 parts of chromium, and fuse them together in any convenient manner. As another example, take about parts, by weight, of 'nickel, about 30 parts of copper, about 10 parts of manganese, and about 10 parts of chromium, and fuse them together in any convenient manner. The lowest temperature coeflicients havebeen obtained where the nickel and copper are used in about equal amounts, and as the nickel is increased the alloy becomes harder. But these nlckel-copper-chromium alloys, with or without manganese, give very good results, both, Where the nickel predominates and where the copper predominates. The
effect of the addition of chromium to alloys containing nickel and copper, increases as the percentage of the nickel increases. In other words, it seems as though the chromium has a greater effect, for electrical resistance, upon the nickel than upon the copper.
Having thus described my invention, 1 claim: 1. Anelectrical-resistance element consisting of an alloy containing copper and nickel and manganese, with from about two per cent. to about ten percent. (240%) of chromium.
2. An electrical-resistance element consisting of an alloy containing copper and nickel and manganese, with a substantial percentage of chromium.
In testimony whereof I have signed this specification in the presence of two subscribing witnesses. I v
v BUR B. DRIVER.
Witnesses: I
' GJA. L. Max-ism p 1 RALrn L.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70544212A US1175724A (en) | 1912-06-24 | 1912-06-24 | Chromium alloys. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70544212A US1175724A (en) | 1912-06-24 | 1912-06-24 | Chromium alloys. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1175724A true US1175724A (en) | 1916-03-14 |
Family
ID=3243717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US70544212A Expired - Lifetime US1175724A (en) | 1912-06-24 | 1912-06-24 | Chromium alloys. |
Country Status (1)
Country | Link |
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US (1) | US1175724A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3900429A (en) * | 1973-02-14 | 1975-08-19 | Toyoda Chuo Kenkyusho Kk | Catalyst for purifying exhaust gases |
US3928235A (en) * | 1973-11-12 | 1975-12-23 | Paul Douglas Goodell | Catalyst for purification of waste streams |
-
1912
- 1912-06-24 US US70544212A patent/US1175724A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3900429A (en) * | 1973-02-14 | 1975-08-19 | Toyoda Chuo Kenkyusho Kk | Catalyst for purifying exhaust gases |
US3928235A (en) * | 1973-11-12 | 1975-12-23 | Paul Douglas Goodell | Catalyst for purification of waste streams |
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