CA2688994A1 - Lead-free free-cutting aluminum brass alloy and its manufacturing method - Google Patents
Lead-free free-cutting aluminum brass alloy and its manufacturing method Download PDFInfo
- Publication number
- CA2688994A1 CA2688994A1 CA2688994A CA2688994A CA2688994A1 CA 2688994 A1 CA2688994 A1 CA 2688994A1 CA 2688994 A CA2688994 A CA 2688994A CA 2688994 A CA2688994 A CA 2688994A CA 2688994 A1 CA2688994 A1 CA 2688994A1
- Authority
- CA
- Canada
- Prior art keywords
- free
- lead
- manufacturing
- cutting aluminum
- brass 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.)
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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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Domestic Plumbing Installations (AREA)
- Forging (AREA)
Abstract
The present invention provides a lead-free free-cutting aluminum brass alloy and its manufacturing method. The alloy comprises: 57.0~63.0 wt% Cu, 0.3~0.7 wt% Al, 0.1~0.5 wt% Bi, 0.2~0.4 wt% Sn, 0.1~0.5 wt% Si, 0.01~0.15 wt% P, at least two elements selected from the group of 0.01-0.15 wt% Mg, 0.0016-0.0020 wt% B, and 0.001-0.05 wt% rare earth elements and the balance being Zn and unavoidable impurities. The inventive alloy has excellent castability, weldability, cuttability and corrosion resistance. It is suitable for low pressure die casting, gravity casting, horizontal continuous casting, forging and extrusion. Its metal material cost is lower than bismuth brass. It is particularly applicable for components used in drinking water supply systems and other structural components. It is a new environmentally-friendly free-cutting aluminum brass alloy.
Claims (12)
1. A lead-free free-cutting aluminum brass alloy comprising: 57.0-63.0wt% Cu, 0.3~0.7wt% Al, 0.1~0.5wt% Bi, 0.1~0.4wt% Sn and the balance being Zn and unavoidable impurities.
2. A lead-free free-cutting aluminum brass alloy comprising: 57.0~63.0wt% Cu, 0.3~0.7wt% Al, 0.1~0.5wt% Bi, 0.2~0.4wt% Sn, 0.1~0.5wt% Si, 0.01~0.15wt% P, at least two elements selected from the group of 0.01-0.15wt% Mg, 0.0016-0.0020wt%
B, 0.001-0.05wt% rare earth elements and the balance being Zn and unavoidable impurities.
B, 0.001-0.05wt% rare earth elements and the balance being Zn and unavoidable impurities.
3. The lead-free free-cutting aluminum brass alloy of claim 2 comprising 0.4-0.6wt% Al, 0.2-0.5wt% Si and 0.1-0.3wt% Bi.
4. The lead-free free-cutting aluminum brass alloy of claim 1, wherein the impurities comprising <=0.1wt% Pb, <=0.1wt% Fe and <=0.03wt% Sb.
5. The lead-free free-cutting aluminum brass alloy of claim 2, wherein the impurities comprising <=0.1wt% Pb, <=0.1wt% Fe and <=0.03wt% Sb.
6. The lead-free free-cutting aluminum brass alloy of claim 3, wherein the impurities comprising <=0.1 wt% Pb, <=0.1wt% Fe and <=0.03wt% Sb.
7. The manufacturing method of claim 1, wherein the temperature for low pressure die casting is 980-1000°C.
8. The manufacturing method of claim 2, wherein the temperature for low pressure die casting is 980-1000°C.
9. The manufacturing method of claim 3, wherein the temperature for low pressure die casting is 980-1000°C.
10. The manufacturing method of claim 1, wherein the mold forging temperature for horizontal continuous castings is 650-710°C.
11. The manufacturing method of claim 2, wherein the mold forging temperature for horizontal continuous castings is 650-710°C.
12. The manufacturing method of claim 3, wherein the mold forging temperature for horizontal continuous castings is 650-710°C.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810188263.4 | 2008-12-23 | ||
| CN2008101882634A CN101440445B (en) | 2008-12-23 | 2008-12-23 | Leadless free-cutting aluminum yellow brass alloy and manufacturing method thereof |
| US12/643,513 | 2009-12-21 | ||
| US12/643,513 US7776163B2 (en) | 2008-12-23 | 2009-12-21 | Lead-free free-cutting aluminum brass alloy and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2688994A1 true CA2688994A1 (en) | 2010-03-22 |
| CA2688994C CA2688994C (en) | 2011-10-04 |
Family
ID=42055800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2688994A Active CA2688994C (en) | 2008-12-23 | 2009-12-22 | Lead-free free-cutting aluminum brass alloy and its manufacturing method |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2208802B1 (en) |
| CA (1) | CA2688994C (en) |
| PL (1) | PL2208802T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113604702A (en) * | 2021-07-20 | 2021-11-05 | 佛山市麦欧金属有限公司 | Copper alloy special for laser cutting 925 silver plate and processing method |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013145964A1 (en) * | 2012-03-30 | 2013-10-03 | 株式会社栗本鐵工所 | Brass alloy for tap water supply member |
| CN105132739B (en) * | 2015-09-10 | 2017-03-22 | 孝感市元达新材料科技有限公司 | Lead-free brass alloy and preparing method of lead-free brass alloy |
| CN115305381A (en) * | 2021-05-13 | 2022-11-08 | 湖南特力新材料有限公司 | Lead-free-cutting brass alloy and manufacturing process thereof |
| CN115044799B (en) * | 2022-06-02 | 2023-03-14 | 广东中欧卫浴用品有限公司 | Manufacturing method and manufacturing production equipment of lead-free DR (digital radiography) dezincification-resistant copper alloy |
| CN115354188B (en) * | 2022-08-26 | 2023-09-15 | 宁波金田铜业(集团)股份有限公司 | Easily-welded brass and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5630984A (en) * | 1992-06-02 | 1997-05-20 | Ideal-Standard Gmbh | Brass alloy |
| JP3374037B2 (en) * | 1997-04-02 | 2003-02-04 | 古河電気工業株式会社 | Copper alloy for semiconductor lead frame |
| CN1916209B (en) * | 2006-08-25 | 2010-05-12 | 江西铜业集团(贵溪)新材料有限公司 | Brass alloy of rare earth tellurium, bismuth, and preparation method |
| CN101225487B (en) * | 2008-01-15 | 2011-04-06 | 胡旭红 | Arsenic-containing low-lead brass alloy |
| CN101343704B (en) * | 2008-09-03 | 2010-10-13 | 浙江天申铜业有限公司 | Manufacture method of leadless environment friendly bismuth brass alloy material suitable for gravity force cast |
-
2009
- 2009-12-22 CA CA2688994A patent/CA2688994C/en active Active
- 2009-12-23 PL PL09180653T patent/PL2208802T3/en unknown
- 2009-12-23 EP EP09180653A patent/EP2208802B1/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113604702A (en) * | 2021-07-20 | 2021-11-05 | 佛山市麦欧金属有限公司 | Copper alloy special for laser cutting 925 silver plate and processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2208802A1 (en) | 2010-07-21 |
| EP2208802B1 (en) | 2011-12-21 |
| PL2208802T3 (en) | 2012-07-31 |
| CA2688994C (en) | 2011-10-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |