US2267301A - Alloy - Google Patents
Alloy Download PDFInfo
- Publication number
- US2267301A US2267301A US384957A US38495741A US2267301A US 2267301 A US2267301 A US 2267301A US 384957 A US384957 A US 384957A US 38495741 A US38495741 A US 38495741A US 2267301 A US2267301 A US 2267301A
- Authority
- US
- United States
- Prior art keywords
- manganese
- lead
- alloy
- hot
- copper
- 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
- 229910045601 alloy Inorganic materials 0.000 title description 5
- 239000000956 alloy Substances 0.000 title description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 11
- 229910052748 manganese Inorganic materials 0.000 description 11
- 239000011572 manganese Substances 0.000 description 11
- 229910001369 Brass Inorganic materials 0.000 description 8
- 239000010951 brass Substances 0.000 description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- RYGMFSIKBFXOCR-IGMARMGPSA-N copper-64 Chemical compound [64Cu] RYGMFSIKBFXOCR-IGMARMGPSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910000635 Spelter Inorganic materials 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- NRUQNUIWEUZVLI-UHFFFAOYSA-O diethanolammonium nitrate Chemical compound [O-][N+]([O-])=O.OCC[NH2+]CCO NRUQNUIWEUZVLI-UHFFFAOYSA-O 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000000704 physical effect Effects 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
- a suitable rolling range is from about 1450 degrees F. to about 1550 degrees F. This increase in hot rollability, by the addition of from 1% t0 3% of manganese. is brought about without ad- :ed y affecting other physical properties of the rass.
- the hot rolling technique which is a faster method of producing sheets, may be carried out without the necessity of using the hishest purity o zinc in the manufacture of the alloy.
- the hot rolling technique is not only cheaper than the cold rolling practice but, in addition, it enables economies in operation since 5 it permits the use of ordinary spelter where the manganese is utilized to offset the difficulties brought about by the presence of the lead impurities present in the cheaper ordinaryspelter.
- a high purity manganese in the practice of my invention, that is, a manganese having a purity of at least about 99.0%.
- a hot rollable brass containing the following ingredients in substantially the following P rcentages by weight:
- Electrolytic .manganese 2 Zinc Balance 3 A hot rollable brass containing the following elements in substantially the indicated percent- 4.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Description
Patented Dec. 23, 1941 UNITED STATES PATENT, OFFICE ALLOY Reginald s. Dean, Salt Lake City, Utah, assignor to Chicago Development Company, Chicago, 111., a corporation of Illinois No Drawing. Application March 24, 1941,
Serial No. 384,957 I 4 Claims.
It has heretofore been recognized that high brass containing approximately 64% to 68% copper and balance substantially all zinc can be hot rolled satisfactorily only if the lead content thereof is exceedingly low. For example, if such brass contains 0.02% lead, it may be hot rolled at any temperature between about 1500 degrees F. and about 1650 degrees F. With 0.1% lead, this temperature range of rolling is reduced to 1550 degrees F. to 1625 degrees F. while with 0.18% lead, there is no temperature above room temperature atuwhicli the said brass can be fully successfully r ed.
In accordance with my present invention, I have discovered that the addition of from about 1% to about 3% of manganese -to brass containing approximately 64% to 68% copper and balance substantially all zinc permits a satisfactory is as high as 0.35%. By the use of my invention,
a suitable rolling range is from about 1450 degrees F. to about 1550 degrees F. This increase in hot rollability, by the addition of from 1% t0 3% of manganese. is brought about without ad- :ed y affecting other physical properties of the rass.
In accordance with my invention. the use of 2% of manganese in a brass of the character hereinabove described results in the production of hot rolled sheets wherein the tensile strength is between 45,000pounds and 50,000 pounds per square inch even though the lead content is between 0.15% and 0.35%. In addition, the elon ation of such an alloy, made in accordance with my invention, is 58% in two inches in the hot rolled condition, which is substantially equal to the elongation of an alloy of 64% copper and 36% zinc and which is substantially free from lead or manganese.
The advantages which the practice of my invention brings about are several. In the first place, the hot rolling technique, which is a faster method of producing sheets, may be carried out without the necessity of using the hishest purity o zinc in the manufacture of the alloy. In the second place, the hot rolling technique is not only cheaper than the cold rolling practice but, in addition, it enables economies in operation since 5 it permits the use of ordinary spelter where the manganese is utilized to offset the difficulties brought about by the presence of the lead impurities present in the cheaper ordinaryspelter.
In order to produce the most satisfactory results, I prefer to employ a high purity manganese in the practice of my invention, that is, a manganese having a purity of at least about 99.0%.
I have found that electrolytic manganese having a purity of 99.9% is especially satisfactory and,
therefore, its use represents the particularly preelements in substantially the indicated percentages by weight:
Copper 64 to 68 Lead 0.1 to 0.35
Manganese 1 to 8 Balance 2. A hot rollable brass containing the following ingredients in substantially the following P rcentages by weight:
Copper 64 to 68 Lead 0.1 to0.85
Electrolytic .manganese 2 Zinc Balance 3. A hot rollable brass containing the following elements in substantially the indicated percent- 4. A hot rollable brass containing the following elements in substantially the indicated percen 5 ages by weight:
Copper 64 Lead 0.1to0-35 Electrolytic manganese 2 Zinc Balance REGINAID 8. DEAN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US384957A US2267301A (en) | 1941-03-24 | 1941-03-24 | Alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US384957A US2267301A (en) | 1941-03-24 | 1941-03-24 | Alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2267301A true US2267301A (en) | 1941-12-23 |
Family
ID=23519443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US384957A Expired - Lifetime US2267301A (en) | 1941-03-24 | 1941-03-24 | Alloy |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2267301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5118341A (en) * | 1991-03-28 | 1992-06-02 | Alcan Aluminum Corporation | Machinable powder metallurgical parts and method |
-
1941
- 1941-03-24 US US384957A patent/US2267301A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5118341A (en) * | 1991-03-28 | 1992-06-02 | Alcan Aluminum Corporation | Machinable powder metallurgical parts and method |
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