US1699665A - Brass composition and process of producing the same - Google Patents
Brass composition and process of producing the same Download PDFInfo
- Publication number
- US1699665A US1699665A US45467A US4546725A US1699665A US 1699665 A US1699665 A US 1699665A US 45467 A US45467 A US 45467A US 4546725 A US4546725 A US 4546725A US 1699665 A US1699665 A US 1699665A
- Authority
- US
- United States
- Prior art keywords
- brass
- producing
- copper
- same
- oxygen
- 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
- 229910001369 Brass Inorganic materials 0.000 title description 16
- 239000010951 brass Substances 0.000 title description 16
- 238000000034 method Methods 0.000 title description 5
- 239000000203 mixture Substances 0.000 title description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 239000004071 soot Substances 0.000 description 6
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 5
- 235000011613 Pinus brutia Nutrition 0.000 description 5
- 241000018646 Pinus brutia Species 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000000266 injurious effect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
Definitions
- brass of this class comprises brass having a copper con-' tent of less than 60%.
- brass of this class is workable onlyin hot condition, because when cold it becomes hard and brittle andtherefore is adapted only for cutting or filing.
- the other main class namely brass containing more than 60% of copper, is soft and ductile in the cold state and is therefore suitable for drawing and stamping work. When hot, however, it is easily fractured and consequently Is not workable.
- the object of the present invention is to produce a brass of the second group which is well suited for all working methods in both hot and cold conditions.
- Pine soot is very favorable for producing the desired deoxidizing efiect, as it forms on the molten metal a very loose layer rated in the alloyand impairs its capability oxygen to render the alloy malleable on which forms an effective insulation against heat and oxygen while permitting the alloy to be brought to a reduction temperature which is favorable for producing the desired deoxidizing effect and at the same time exeludes the'oxygen of the air.
- the copper and zincare charged into a smelting furnace together with any desired quantity of pine soot. As soon as the metals aremelted the charge is stirred so as to thoroughly mix the metals, during which time further quantities of pine soot may be added to the charge.
- the alloy will in this manner be deoxidized to such an extentthat it is readily workable while hot without liability to fracture.
- brass comprising more than 63% by weight of copper when manufactured with the addition of pine soot in the melting process and malleable in both cold and hot condition.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Patented Jan. 22, 1929.
UNITED STATES o'r'ro runxnn, or STOLBERG,1GEBHANY.
BRASS comrosrrron Ann :enocnss' or raonucme ran same.
Ho Drawing. Application flled July 23, 1925, Serial No, 45,467, and in Germany May 8, 1924.
-The ordinary brass of commerce maybe.
divided into two principal classes. One
class comprises brass having a copper con-' tent of less than 60%. As is well known, brass of this class is workable onlyin hot condition, because when cold it becomes hard and brittle andtherefore is adapted only for cutting or filing. On the other hand, the other main class, namely brass containing more than 60% of copper, is soft and ductile in the cold state and is therefore suitable for drawing and stamping work. When hot, however, it is easily fractured and consequently Is not workable.
The object of the present invention is to produce a brass of the second group which is well suited for all working methods in both hot and cold conditions.
I have observedthat in brass containing more than 60% of copper the characteristic of liability to fracture, occurs to a very high degree when such brass has been produced by melting down strongly oxidized metal. From this observation'I have deducedthat the oxygen in some way becomes incorpo- 7 method of releasing'the oxygen may be employed, provided the reduction of oxygen is sufficient so that the alloy will not be heated 40 to such a temperature as to produce in it the liability tofract-ure as above stated. I have found thatvery finely pulverized carbon, for instance in the form of pine soot, is suitable for the purposes of the present invention, since it can be added to the molten alloy in any desired quantity without forming injurious combinations such as are produced by other known deoxidizingagents, such for instance as manganese, alumina, silica or phosphor, all of which when used to excess have an injurious effect on the quality of the brass. Pine soot is very favorable for producing the desired deoxidizing efiect, as it forms on the molten metal a very loose layer rated in the alloyand impairs its capability oxygen to render the alloy malleable on which forms an effective insulation against heat and oxygen while permitting the alloy to be brought to a reduction temperature which is favorable for producing the desired deoxidizing effect and at the same time exeludes the'oxygen of the air.
The following is given as an example of the process: r
To produce a brass containing 67% copper and 33% zinc, the copper and zincare charged into a smelting furnace together with any desired quantity of pine soot. As soon as the metals aremelted the charge is stirred so as to thoroughly mix the metals, during which time further quantities of pine soot may be added to the charge. The alloy will in this manner be deoxidized to such an extentthat it is readily workable while hot without liability to fracture.
It is to be understood that the foregoing is given merely as an example, but that other suitable meansmay employed for releasing the oxygen without departing from the spirit and scope of the invention-since the special-manner of releasing the oxygen is unimportant so far as the present invention is concerned. I
p am' aware that theabove mentioned content of 60% of copper above which a brass alloy is only workable in the cold and below which it is workable only when hot, does not give a strict line of demarkation, and therefore I have limited the appended claims to a brass alloy, and to its manufacture, which consist substantially of copper and zinc only, the lower limit of the copper content being Having thus described'my invention, what Iclaim is:
1. The process of manufacturing brass which consists in melting together the brass forming metals comprising more than 63% in weight of copper with less than 37% in weight of zinc in the presence of soot and stirring the mixture when in molten condition so as to efi'ect thorough deoxidization.
2. As an article of manufacture brass comprising more than 63% by weight of copper when manufactured with the addition of pine soot in the melting process and malleable in both cold and hot condition.
In testimony whereof I have signed my name to this specification.
OTTO JUN'KER.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1699665X | 1924-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1699665A true US1699665A (en) | 1929-01-22 |
Family
ID=7739830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US45467A Expired - Lifetime US1699665A (en) | 1924-05-08 | 1925-07-23 | Brass composition and process of producing the same |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1699665A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3718844A (en) * | 1971-01-22 | 1973-02-27 | Sangamo Electric Co | Capacitor with terminal clips |
-
1925
- 1925-07-23 US US45467A patent/US1699665A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3718844A (en) * | 1971-01-22 | 1973-02-27 | Sangamo Electric Co | Capacitor with terminal clips |
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