CN1261603C - Etch resistant aluminium brass alloy - Google Patents

Etch resistant aluminium brass alloy Download PDF

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Publication number
CN1261603C
CN1261603C CN 200310109159 CN200310109159A CN1261603C CN 1261603 C CN1261603 C CN 1261603C CN 200310109159 CN200310109159 CN 200310109159 CN 200310109159 A CN200310109159 A CN 200310109159A CN 1261603 C CN1261603 C CN 1261603C
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China
Prior art keywords
corrosion
copper
chromium
boron
nickel
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Expired - Lifetime
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CN 200310109159
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Chinese (zh)
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CN1546700A (en
Inventor
曹建国
赵学龙
冯海良
冯亚丽
游启华
傅林忠
庹威
李纯玉
杨继德
刘琥
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Zhejiang Hailiang Co Ltd
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Zhejiang Hailiang Co Ltd
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Priority to CN 200310109159 priority Critical patent/CN1261603C/en
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Publication of CN1261603C publication Critical patent/CN1261603C/en
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  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

The present invention relates to a corrosion resistant aluminum brass alloy, which belongs to the technical fields of the metallic material alloying and the material corrosion prevention. The aluminum brass alloy comprises zinc, copper, aluminum, arsenic, titanium, nickel, chromium, boron, etc., and the aluminum brass alloy comprises the components by the following weight percentage: 76.0 to 79.0 % of copper(Cu), 1.8 to 2.5 % of aluminum (Al), 0.02 to 0.06 % of arsenic (As), 0.01 to 0.10 % of titanium (Ti), 0.05 to 1.0 % of nickel(Ni), 0.01 to 0.50 % of chromium (Cr), 0.001 to 0.10 % of boron (B), zinc (Zn) as the rest and the total amount of at most 0.05 % of impurity. The proportion design of the present invention is reasonable, and on the basis of existing aluminum brass corrosion-resistant alloys, the arsenic (As), the titanium (Ti), the nickel (Ni), the chromium(Cr) and the boron (B) are added according to the main corrosion forms of the material in use so that a special surface film containing minor elements is formed on the surfaces of the material by microalloying so that the secondary surface corrosion is prevented, and the corrosion resistant property is enhanced.

Description

A kind of anticorodal aluminum brass alloys
Technical field
The present invention relates to a kind of anticorodal aluminum brass alloys, belong to metallic material alloyization and material antiseptic erosion technical field.
Background technology
The main trade mark of existing aluminum brass non-corrosive metal is HA177-2, its each component is by weight percentage: Cu 76.0~79.0%, Al 1.8~2.5%, all the other are not more than 0.05% impurity for Zn and total amount, though this aluminum brass non-corrosive metal has Dezincification corrosion resistant and anti-erosion corrosion ability preferably, is containing NH 4 +, Cl -, when abominable condition of water quality such as high salt uses down, its resistance to corrosion is relatively poor, easily is corroded, cause tubing to leak, thereby has influenced the work-ing life that application aluminum brass non-corrosive metal pipes such as steam turbine, condenser carry out the equipment of condensing heat-exchange.
Along with problems such as environmental pollution become increasingly conspicuous, the prolong environment for use is more abominable, and the corrosion resisting property of the non-corrosive metal that is used to make prolong is also had higher requirement.When existing HA177-2 alloy used in polluting bigger water quality, its life-span had only 3~5 years, and replace tubes is frequent, has not only reduced the efficient of unit, and has increased consumption, caused cost to rise.Therefore existing aluminum brass non-corrosive metal has been difficult to satisfy the service requirements of prolong alloy material.
Summary of the invention
The purpose of this invention is to provide a kind of anticorodal aluminum brass alloys with comparatively ideal corrosion resisting property and mechanical property.
The present invention is a kind of anticorodal aluminum brass alloys, includes zinc, copper, aluminium is characterized in that also comprising simultaneously arsenic, titanium, nickel, chromium, boron etc., the composition of its each component is respectively by weight percentage: copper (Cu) 76.0~79.0%, aluminium (Al) 1.8~2.5%, arsenic (As) 0.02~0.06%, titanium (Ti) 0.01~0.10%, nickel (Ni) 0.05~1.0%, chromium (Cr) 0.01~0.50%, boron (B) 0.001~0.10%, all the other are that zinc (Zn) and total amount are not more than 0.05% impurity.
The composition of described each component can be preferably respectively by weight percentage: copper (Cu) 76.0~79.0%, aluminium (Al) 1.8~2.5%, arsenic (As) 0.02~0.06%, titanium (Ti) 0.05~0.10%, nickel (Ni) 0.05~0.20%, chromium (Cr) 0.02~0.10%, boron (B) 0.05~0.10%, all the other are that zinc (Zn) and total amount are not more than 0.05% impurity.
Described arsenic (As) can copper-arsenic (Cu-As) master alloy mode add in zinc (Zn) ingot and aluminium (Al) ingot.Described titanium (Ti) can copper-titanium (Cu-Ti)) mode of master alloy adds in zinc (Zn) ingot and aluminium (Al) ingot.Described nickel (Ni) can copper-nickel (Cu-Ni) master alloy mode add in zinc (Zn) ingot and aluminium (Al) ingot.Described chromium (Cr) can copper-chromium (Cu-Cr) master alloy mode add in zinc (Zn) ingot and aluminium (Al) ingot.Described boron (B) can copper-boron (Cu-B) master alloy mode add in zinc (Zn) ingot and aluminium (Al) ingot.
The present invention is on the basis of existing aluminum brass non-corrosive metal, at the in use main form of corrosion of this material, add arsenic (As), titanium (Ti), nickel (Ni), chromium (Cr), boron (B) element of trace, form the special list facial mask that contains trace element at material surface by microalloying, stop the corrosion of two subsurfaces, thereby improved corrosion resisting property, its proportion design is reasonable, compare with existing aluminum brass non-corrosive metal, at dissolved solid 4500mg/l, NH 4 +100mg/l, Cl -Following abominable water quality, the polluted water environment of 2200mg/l, quantity of sand and mud 600mg/l descends and the large-scale thermal power machine group is used in the condenser, has better corrosion resisting property.Anticorodal aluminum brass alloys of the present invention can be widely used in the fields such as manufacturing of condenser, steam turbine, interchanger usefulness tubing.Result of use in coastal water quality is better, and with the heat exchanger brazed copper tube that anticorodal aluminum brass alloys of the present invention are made, can reach more than 15 years work-ing life, and alternative White Copper Tubes is used for air removal section.
Embodiment
Frequency cored induction furnace is adopted in the preparation of anticorodal aluminum brass alloys of the present invention, in the copper zinc alloy melt, press composition proportioning and order of addition(of ingredients), add zinc (Zn) ingot, aluminium (Al) ingot and copper-arsenic (Cu-As), copper-titanium (Cu-Ti)), materials such as copper-nickel (Cu-Ni), copper-chromium (Cu-Cr), copper-boron (Cu-B) master alloy, adopt vertical direct chill casting, prepare cylindrical anticorodal aluminum brass alloys ingot.The add-on of its each component is respectively by weight percentage: copper (Cu) 76.0~79.0%, aluminium (Al) 1.8~2.5%, arsenic (As) 0.02~0.06%, titanium (Ti) 0.05~0.1%, nickel (Ni) 0.05~0.2%, chromium (Cr) 0.02~0.10%, boron (B) 0.05~0.10%, all the other are zinc (Zn).

Claims (2)

1, a kind of anticorodal aluminum brass alloys include zinc, copper, aluminium is characterized in that also comprising simultaneously arsenic, titanium, nickel, chromium, boron, the composition of its each component is respectively by weight percentage: Cu 76.0~79.0%, and Al 1.8~2.5%, and As 0.02~0.06%, Ti 0.01~0.10%, Ni0.05~1.0%, and Cr 0.01~0.50%, B 0.001~0.10%, and all the other are not more than 0.05% impurity for Zn and total amount.
2, by the described a kind of anticorodal aluminum brass alloys of claim 1, the composition that it is characterized in that described each component is respectively by weight percentage: Cu 76.0~79.0%, Al 1.8~2.5%, As 0.02~0.06%, Ti 0.05~0.10%, and Ni 0.05~0.20%, and Cr 0.02~0.10%, B0.05~0.10%, all the other are not more than 0.05% impurity for Zn and total amount.
CN 200310109159 2003-12-03 2003-12-03 Etch resistant aluminium brass alloy Expired - Lifetime CN1261603C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200310109159 CN1261603C (en) 2003-12-03 2003-12-03 Etch resistant aluminium brass alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200310109159 CN1261603C (en) 2003-12-03 2003-12-03 Etch resistant aluminium brass alloy

Publications (2)

Publication Number Publication Date
CN1546700A CN1546700A (en) 2004-11-17
CN1261603C true CN1261603C (en) 2006-06-28

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100463986C (en) * 2007-07-20 2009-02-25 中铝洛阳铜业有限公司 Corrosion resistant brass alloy material for plate heat exchanger and processing technique thereof
CN102517466A (en) * 2011-12-30 2012-06-27 中宇建材集团有限公司 Preparation method of high-quality arsenic-brass bars
CN102676873A (en) * 2012-05-29 2012-09-19 金川集团股份有限公司 Aluminum brass alloy and preparation method thereof

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Co-applicant before: ZHEJIANG HAILIANG Co.,Ltd.

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Assignee: SHANGHAI HAILIANG COPPER CO.,LTD.

Assignor: ZHEJIANG HAILIANG Co.,Ltd.

Contract fulfillment period: 2009.6.25 to 2013.12.3

Contract record no.: 2009310000289

Denomination of invention: Etch resistant aluminium brass alloy

Granted publication date: 20060628

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LIC Patent licence contract for exploitation submitted for record

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