US20100166595A1 - Phosphor-bronze alloy as raw materials for semi solid metal casting - Google Patents
Phosphor-bronze alloy as raw materials for semi solid metal casting Download PDFInfo
- Publication number
- US20100166595A1 US20100166595A1 US12/278,921 US27892107A US2010166595A1 US 20100166595 A1 US20100166595 A1 US 20100166595A1 US 27892107 A US27892107 A US 27892107A US 2010166595 A1 US2010166595 A1 US 2010166595A1
- Authority
- US
- United States
- Prior art keywords
- phosphor
- mass
- semi
- bronze alloy
- solid
- 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.)
- Abandoned
Links
- 229910000906 Bronze Inorganic materials 0.000 title claims abstract description 137
- 239000002994 raw material Substances 0.000 title claims abstract description 44
- 238000010116 semi-solid metal casting Methods 0.000 title claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 32
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 16
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 11
- 229910052714 tellurium Inorganic materials 0.000 claims abstract description 7
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000007787 solid Substances 0.000 description 56
- 239000013078 crystal Substances 0.000 description 17
- 239000007790 solid phase Substances 0.000 description 16
- 238000005266 casting Methods 0.000 description 14
- 238000002844 melting Methods 0.000 description 13
- 239000010949 copper Substances 0.000 description 12
- 239000007791 liquid phase Substances 0.000 description 12
- 239000012071 phase Substances 0.000 description 11
- 229910045601 alloy Inorganic materials 0.000 description 10
- 239000000956 alloy Substances 0.000 description 10
- 230000008018 melting Effects 0.000 description 9
- 239000010974 bronze Substances 0.000 description 7
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 7
- 210000001787 dendrite Anatomy 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 238000013019 agitation Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910052745 lead Inorganic materials 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910017755 Cu-Sn Inorganic materials 0.000 description 1
- 229910017927 Cu—Sn Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 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
- C22C9/02—Alloys based on copper with tin as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/007—Semi-solid pressure die casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
- B22D21/025—Casting heavy metals with high melting point, i.e. 1000 - 1600 degrees C, e.g. Co 1490 degrees C, Ni 1450 degrees C, Mn 1240 degrees C, Cu 1083 degrees C
-
- 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
- the present invention relates to a phosphor-bronze alloy as raw materials for Semi Solid Metal casting that can be used to produce a phosphor-bronze alloy cast having fine grains by Semi Solid Metal casting (semi-solid alloy casting) without agitating a molten metal.
- a Cu—Sn copper alloy containing copper and tin as major components and a minute amount of P is known as a phosphor-bronze alloy.
- a forging phosphor-bronze alloy having a component composition containing Sn of 3.5 to 9.0 mass %, phosphor of 0.03 to 0.35 mass %, and a balance of Cu and inevitable impurities and a casting phosphor-bronze alloy having a component composition containing Sn of 9.0 to 15.0 mass %, phosphor of 0.05 to 0.5 mass %, and a balance of Cu and inevitable impurities are defined in the JIS standard.
- Patent Document 1 Japanese Unexamined Patent Publication No. H6-234049
- An object of the invention is to provide a phosphor-bronze alloy as raw materials for Semi Solid Metal casting that can produce a phosphor-bronze alloy cast having fine grains by Semi Solid Metal casting without using a member for agitating the molten metal.
- a semi-solid phosphor-bronze alloy obtained by using a phosphor-bronze alloy which was obtained by adding Zr of 0.0005 to 0.04 mass % to a phosphor-bronze alloy containing Sn of 4 to 15 mass % and P of 0.01 to 0.25 mass %, as a raw alloy, completely melting the phosphor-bronze alloy into a liquid phase, and cooling the molten phosphor-bronze alloy, and a semi-solid phosphor-bronze alloy obtained by re-melting the ingot are both excellent in flowability.
- (B) A semi-solid phosphor-bronze alloy obtained by using a phosphor-bronze alloy, which was obtained by adding Zn of 0.1 to 7.5 mass % to the phosphor-bronze alloy according to (A) containing Zr of 0.0005 to 0.04 mass % and P of 0.01 to 0.25 mass % as a raw alloy, completely melting the phosphor-bronze alloy into a liquid phase, and cooling the molten phosphor-bronze alloy, and a semi-solid phosphor-bronze alloy obtained by re-melting the ingot are both excellent in flowability.
- the invention provides the following based on the above-mentioned study result:
- a phosphor-bronze alloy as raw materials for Semi Solid Metal casting having a component composition containing Sn of 4 to 15 mass %, Zr of 0.0005 to 0.04 mass %, P of 0.01 to 0.25 mass % and a balance of Cu and inevitable impurities.
- a phosphor-bronze alloy as raw materials for Semi Solid Metal casting having a component composition containing Sn of 4 to 15 mass %, Zr of 0.0005 to 0.04 mass %, P of 0.01 to 0.25 mass %, Zn of 0.1 to 7.5 mass %, and a balance of Cu and inevitable impurities.
- the component composition of the phosphor-bronze as raw materials for Semi Solid Metal casting according to (1) or (2) may have a component composition further containing one or more kinds of Pb of 0.01 to 4.5 mass %, Bi of 0.01 to 3.0 mass %, Se of 0.03 to 1.0 mass %, and Te of 0.01 to 1.0 mass %.
- the phosphor-bronze alloy as raw materials for Semi Solid Metal casting according to the invention is melted to produce a semi-solid phosphor-bronze alloy in a solid-liquid mixture slurry and the semi-solid phosphor-bronze alloy is cast using a conventional method, a fine and granular ⁇ primary phase is generated or an ⁇ solid phase coexists in the liquid phase of the semi-solid phosphor-bronze alloy. Accordingly, even when an agitating apparatus is not used, it is possible to cast the semi-solid phosphor-bronze alloy without damaging the flowability of the semi-solid phosphor-bronze alloy. In addition, it is an advantage that the crystal grains of the phosphor-bronze alloy cast obtained by casting the semi-solid phosphor-bronze alloy are further reduced in size, thereby further enhancing the mechanical strength.
- a phosphor-bronze alloy as raw materials for Semi Solid Metal casting according to the invention has a component composition containing Sn of 4 to 15 mass %, Zr of 0.0005 to 0.04 mass %, P of 0.01 to 0.25 mass %, and a balance of Cu and inevitable impurities.
- the phosphor-bronze alloy as raw materials for Semi Solid Metal casting according to the invention may have a component composition containing Sn of 4 to 15 mass %, Zr of 0.0005 to 0.04 mass %, P of 0.01 to 0.25 mass %, Zn of 0.1 to 7.5 mass % and a balance of Cu and inevitable impurities.
- the component composition of the phosphor-bronze alloy as raw materials for Semi Solid Metal casting according to the invention may contain Sn of 4 to 15 mass %, Zr of 0.0005 to 0.04 mass %, P of 0.01 to 0.25 mass %, Zn of 0.1 to 7.5 mass %, and a balance of Cu and inevitable impurities.
- An ingot of the phosphor-bronze alloy as raw materials for Semi Solid Metal casting according to the invention, the component composition of which is adjusted, is produced and stored in advance, a semi-solid phosphor-bronze alloy is produced by re-melting a necessary amount of the ingot of the phosphor-bronze alloy as raw materials, and a semi-solid phosphor-bronze alloy cast having fine grains can be manufactured by casting the semi-solid phosphor-bronze alloy.
- Sn has a function of improving the flowability of the molten alloy by means of addition to Cu, improving the corrosion resistance of the cast, and improving the mechanical strength and the wear resistance.
- the content is less than 4 mass %, it is not preferable because the mechanical strength is small and the flowability of the molten alloy is reduced.
- the content is greater than 15 mass %, it is not preferable because the casting property is deteriorated and the resultant cast is hard and brittle, thus reducing the mechanical strength. Accordingly, the content of Sn contained in the phosphor-bronze alloy for Semi Solid Metal casting according to the invention is defined in the range of 4 mass % to 15 mass %.
- Zr has a function of promoting the generation of fine and granular ⁇ primary crystals in a semi-solid state, improving the flowability of the semi-solid phosphor-bronze alloy, and reducing the size of the crystal grains of the phosphor-bronze alloy cast,
- the content thereof is less than 0.0005 mass %, it is not preferable because the reduction in size of the crystal grains is not sufficient.
- the content is greater than 0.04 mass %, it is not preferable because the crystal grains of the cast increase in size.
- the content of Zr contained in the phosphor-bronze alloy as raw materials for Semi Solid Metal casting according to the invention is defined in the range of 0.0005 mass % to 0.04 mass %.
- P has a function of promoting the generation of fine granular ⁇ primary crystals in a semi-solid state, improving the flowability of the semi-solid phosphor-bronze alloy, and reducing the size of the crystal grains of the phosphor-bronze alloy cast.
- the content thereof is less than 0.01 mass %, it is not preferable because the reduction in size of the crystal grains is not sufficient.
- the content is greater than 0.25 mass %, it is not preferable because intermetallic compounds with a low melting point are generated, making it brittle. Accordingly, the content of P contained in the phosphor-bronze alloy for Semi Solid Metal casting according to the invention is defined in the range of 0.01 mass % to 0.25 mass %.
- Zn has a function of further improving the flowability of the semi-solid phosphor-bronze alloy, lowering the melting point, and enhancing the corrosion resistance and is thus added as needed.
- the content thereof is less than 0.1 mass %, it is not preferable because the desired effect is not obtained.
- the content thereof is greater than 7.5 mass %, it is not preferable because the flowability of the resultant cast is deteriorated. Accordingly, the content of Zn contained in the phosphor-bronze alloy as raw materials for Semi Solid Metal casting according to the invention is defined in the range of 0.1 mass % to 7.5 mass %.
- the phosphor-bronze alloy as raw materials for Semi Solid Metal casting according to the invention may further contain one or more kinds of Pb, Bi, Se, and Te and the like as needed.
- Pb be in the range of 0.01 mass % to 4.5 mass %
- the content of Bi be in the range of 0.01 mass % to 3.0 mass %
- the content of Se be in the range of 0.03 mass % to 1.0 mass %
- the content of Te be in the range of 0.01 mass % to 1.0 mass %.
- the phosphor-bronze alloy as raw materials for Semi Solid Metal casting has the above-mentioned component composition
- the phosphor-bronze alloy as raw materials for Semi Solid Metal casting is melted to produce a semi-solid phosphor-bronze alloy in a solid-liquid mixture slurry and the semi-solid phosphor-bronze alloy is cast using a conventional method, a fine and granular ⁇ primary phase is generated or an ⁇ solid phase coexists in the liquid phase of the semi-solid phosphor-bronze alloy. Accordingly, even when an agitating apparatus is not used, it is possible to cast the semi-solid phosphor-bronze alloy without damaging the flowability of the semi-solid phosphor-bronze alloy. In addition, it is an advantage that the crystal grains of the phosphor-bronze alloy cast obtained by casting the semi-solid phosphor-bronze alloy are further reduced in size, thereby further enhancing the mechanical strength.
- ingots of phosphor-bronze alloys as raw materials for Semi Solid Metal casting (hereinafter, referred to as phosphor-bronze alloys as raw materials according to examples of the invention) according to Examples 1 to 75 of the invention and phosphor-bronze alloys as raw materials for Semi Solid Metal casting (hereinafter, referred to as phosphor-bronze alloys as raw materials according to comparative examples) according to Comparative Examples 1 to 6, which have the component compositions shown in Tables 1 to 6, were produced.
- the average grain sizes of the ⁇ solid phase were measured by etching the cutting surfaces of the quenched samples with nitric acid and then observing the cutting surfaces with an optical microscope.
- the semi-solid phosphor-bronze alloys produced from the phosphor-bronze alloys as raw materials according to Examples 1 to 75 of the present invention were better in flowability than the semi-solid phosphor-bronze alloys produced from the phosphor-bronze alloys as raw materials according to Conventional Examples 1 and 2 and that the fine and granular ⁇ solid phase was generated in the liquid phase of the semi-solid phosphor-bronze alloys obtained by melting the phosphor-bronze alloys as raw materials according to Examples 1 to 75 of the present invention, thereby obtaining a cast having fine grains even when the semi-solid phosphor-bronze alloy is cast without agitation.
- the phosphor-bronze alloys as raw materials according to Comparative Examples 1 to 6 containing Sn, Zr, and P that depart from the conditions of the invention are not preferable since dendrite is generated, the reduction in size of the crystal grains is insufficient in the semi-solid state thereof, or the alloys are brittle.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Continuous Casting (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006035003A JP2007211324A (ja) | 2006-02-13 | 2006-02-13 | 半融合金鋳造用原料りん青銅合金 |
| JP2006-035003 | 2006-02-13 | ||
| PCT/JP2007/052403 WO2007094265A1 (fr) | 2006-02-13 | 2007-02-09 | Materiau brut a base d'alliage de phosphore et de bronze pour le coulage d'un alliage semi-fondu |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20100166595A1 true US20100166595A1 (en) | 2010-07-01 |
Family
ID=38371451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/278,921 Abandoned US20100166595A1 (en) | 2006-02-13 | 2007-02-09 | Phosphor-bronze alloy as raw materials for semi solid metal casting |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100166595A1 (fr) |
| JP (1) | JP2007211324A (fr) |
| CN (1) | CN101384386A (fr) |
| WO (1) | WO2007094265A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100946936B1 (ko) * | 2009-12-01 | 2010-03-09 | 조주현 | 브레이징 합금 |
| JP5590328B2 (ja) * | 2011-01-14 | 2014-09-17 | 三菱マテリアル株式会社 | 電気銅めっき用含リン銅アノードおよびそれを用いた電解銅めっき方法 |
| CN103740971B (zh) * | 2013-11-29 | 2016-01-06 | 余姚市宏骏铜业有限公司 | 一种青铜轴承 |
| JP5928624B1 (ja) * | 2015-03-04 | 2016-06-01 | 株式会社 大阪合金工業所 | 楽器用青銅合金及びそれを用いた打楽器 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4927467A (en) * | 1987-02-10 | 1990-05-22 | Mitsubishi Denki Kabushiki Kaisha | Method for producing thin plate of phosphor bronze |
| US5853505A (en) * | 1997-04-18 | 1998-12-29 | Olin Corporation | Iron modified tin brass |
| US6132528A (en) * | 1997-04-18 | 2000-10-17 | Olin Corporation | Iron modified tin brass |
| US6136103A (en) * | 1997-12-19 | 2000-10-24 | Wieland-Werke Ag | Copper-tin-titanium alloy |
| US6346215B1 (en) * | 1997-12-19 | 2002-02-12 | Wieland-Werke Ag | Copper-tin alloys and uses thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5789449A (en) * | 1980-11-21 | 1982-06-03 | Sumitomo Electric Ind Ltd | Method of manufacture of copper alloy for conducting electricity |
| JPH07113143B2 (ja) * | 1987-03-20 | 1995-12-06 | 三菱電機株式会社 | 高強度銅合金の製造方法 |
| JPH06172896A (ja) * | 1992-12-04 | 1994-06-21 | Nikko Kinzoku Kk | 高力高導電性銅合金 |
| JP3303878B2 (ja) * | 1996-09-09 | 2002-07-22 | 東陶機器株式会社 | 黄銅の製造方法及び製造設備 |
| JP4043342B2 (ja) * | 2002-10-25 | 2008-02-06 | 株式会社神戸製鋼所 | リン青銅 |
| EP1777305B1 (fr) * | 2004-08-10 | 2010-09-22 | Mitsubishi Shindoh Co., Ltd. | Moulage d'alliage de cuivre avec des granules de cristal raffiné |
| WO2007043101A1 (fr) * | 2005-09-30 | 2007-04-19 | Sanbo Shindo Kogyo Kabushiki Kaisha | Matière solidifiée à l’état fondu, matériau d'alliage de cuivre pour une solidification à l’état fondu et son procédé de production |
-
2006
- 2006-02-13 JP JP2006035003A patent/JP2007211324A/ja active Pending
-
2007
- 2007-02-09 WO PCT/JP2007/052403 patent/WO2007094265A1/fr active Application Filing
- 2007-02-09 CN CNA2007800050738A patent/CN101384386A/zh active Pending
- 2007-02-09 US US12/278,921 patent/US20100166595A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4927467A (en) * | 1987-02-10 | 1990-05-22 | Mitsubishi Denki Kabushiki Kaisha | Method for producing thin plate of phosphor bronze |
| US5853505A (en) * | 1997-04-18 | 1998-12-29 | Olin Corporation | Iron modified tin brass |
| US6132528A (en) * | 1997-04-18 | 2000-10-17 | Olin Corporation | Iron modified tin brass |
| US6136103A (en) * | 1997-12-19 | 2000-10-24 | Wieland-Werke Ag | Copper-tin-titanium alloy |
| US6346215B1 (en) * | 1997-12-19 | 2002-02-12 | Wieland-Werke Ag | Copper-tin alloys and uses thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007094265A1 (fr) | 2007-08-23 |
| CN101384386A (zh) | 2009-03-11 |
| JP2007211324A (ja) | 2007-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: MITSUBISHI SHINDOH CO., LTD.,JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:OISHI, KEIICHIRO;REEL/FRAME:021363/0494 Effective date: 20080530 Owner name: MITSUBISHI MATERIALS CORPORATION,JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:OISHI, KEIICHIRO;REEL/FRAME:021363/0494 Effective date: 20080530 |
|
| STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |