CN102086492B - Brass alloy for copper bar and manufacturing process thereof - Google Patents
Brass alloy for copper bar and manufacturing process thereof Download PDFInfo
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- CN102086492B CN102086492B CN2010106116361A CN201010611636A CN102086492B CN 102086492 B CN102086492 B CN 102086492B CN 2010106116361 A CN2010106116361 A CN 2010106116361A CN 201010611636 A CN201010611636 A CN 201010611636A CN 102086492 B CN102086492 B CN 102086492B
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Abstract
The invention discloses a brass alloy with high hardness and high elongation rate for a copper bar component of a tobacco shredder in the tobacco industry and a manufacturing process thereof, and aims to overcome the defect that the existing brass alloy for the copper bar has low strength and elongation rate or the mechanical property can meet the requirements but the production cost is relatively high and the process is complicated. The brass alloy disclosed by the invention comprises the following components in percentage by weight: 58.00-58.50% of copper, 2.20-2.50% of nickel, 1.90-2.20% of manganese, 1.20-1.50% of aluminum, less than 1.00% of lead, less than 0.30% of iron, and the balance of zinc and unavoidable impurities. The copper bar manufactured from the brass alloy disclosed by the invention has high strength, high elongation rate and good technological properties, and does not crack easily.
Description
Technical field
The present invention relates to field of copper alloy production technology, particularly a kind of tobacco industry filament cutter copper bar parts that are used for have the brass alloys and the ME thereof of high firmness, high-elongation.
Background technology
Particular requirement along with tobacco equipment industry production development of technology and portioned product; To filament cutter require increasingly high; Require the copper bar parts that higher hardness and unit elongation will be arranged, and traditional copper bar alloy material does not reach requirement owing to hardness, unit elongation in process of production, the copper bar of production is soft partially; Easy to crack when on filament cutter, using, even can't on the filament cutter that copper bar is had superior performance require, use, or can use reluctantly but result of use is not good.Adding rare earth in the copper alloy and can make the mechanical property of copper bar reach requirement, is the patent of invention of CN101157998A like publication number, discloses a kind of tin-brass alloy containing rare earth, comprises copper; Zinc, tin, aluminium, nickel; Manganese, antimony, boron is master's norium with lightweight REEs such as lanthanum, ceriums; The composition of each component is respectively by weight percentage: copper 69～71%, tin 0.5～1%, aluminium 0.1～0.5%, nickel 0.1～0.5%; Manganese 0.1～0.6%, antimony 0.01～0.05%, boron 0.002～0.02%; With lightweight REEs such as lanthanum, ceriums is master's norium 0.02～0.2%, and all the other are not more than 0.05% impurity for zinc and total amount, and the weight percent summation of each component is 100%.Can cause cost to increase but add rare earth, complete processing is complicated.
Summary of the invention
It is low to the objective of the invention is to solve existing brass alloys intensity, the unit elongation that is used for copper bar; Perhaps mechanical property reaches requirement; But production cost is higher, the defective of complex process, and a kind of brass alloys are provided, and the copper bar that it is made has HS, high-elongation; Not easy to crack, use characteristics is good.
Another object of the present invention is to provide a kind of ME that is used for the brass alloys of copper bar, technology is simple, and production cost is low.
The technical solution adopted for the present invention to solve the technical problems is: a kind of brass alloys that are used for copper bar, the weight percent of described brass alloys each component consists of: copper 58.00 ~ 58.50%, nickel 2.20 ~ 2.50%, manganese 1.90 ~ 2.20%, aluminium 1.20-1.50%, lead＜1.00%, iron＜0.30%, surplus are zinc and unavoidable impurities.
The present invention is through control Ni, Mn, Al constituent content scope; Improve the hardness of brass alloys, controlled the content of Pb, Fe element, strengthened the toughness of material; Improved the unit elongation of brass alloys, brass alloys hardness of the present invention, unit elongation reach the consumer products requirement fully.
The present invention also provides a kind of above-mentioned ME that is used for the brass alloys of copper bar, and described ME may further comprise the steps:
A, raw material are prepared: with purple composition brass, the copper-zinc-manganese alloy that contains manganese 30%, nickeliferous 10 ~ 20% useless copper-nickel alloy, spelter and aluminum steel is raw material, calculates the weight proportion of each raw material according to the brass alloys composition;
B, melting, continuous casting: in main frequency furnace, add the raw material melting; Smelting temperature is at 1100 ~ 1200 ℃, adds earlier in the fusion process to contain the copper-zinc-manganese alloy of manganese 30% and nickeliferous 10 ~ 20% useless copper-nickel alloy carries out melting, adds purple composition brass melting then; Add spelter and aluminum steel melting after stirring again; Pour holding furnace after stirring into, holding temperature is 900 ~ 1100 ℃, and continuous casting becomes copper ingot then;
C, at last 700 ~ 750 ℃ of following extrusion moldings.Obtaining the finished product of brass alloys after the extrusion molding, promptly is copper bar.
Utilize the useless copper-nickel alloy that reclaims as raw material, avoided the use of new Ni metal, calculate according to mass ratio 2.35%, the new Ni metal of the about 23.5Kg of saving per ton, directly reducing cost reaches 4000 yuan/ton, and production technique is simpler.
To contain the copper-zinc-manganese alloy of manganese 30% and nickeliferous 10 ~ 20% useless copper-nickel alloy earlier adds in the stove; Can guarantee that like this copper-zinc-manganese alloy fully dissolves; Avoid influencing quality because of dissolving insufficient slag inclusion that causes; Add purple composition brass raw material again, sample examination adds spelter after fully stirring, aluminum steel carries out the composition modulation, and the resampling chemical examination was to guarantee that composition is qualified after composition modulated.
As preferably, casting speed is 70 ~ 100mm/min.The control casting speed promptly is a controlled chilling speed, to avoid producing surface imperfection, subsurface defect and shape defect.
As preferably, described copper-zinc-manganese alloy that contains manganese 30% adopts electrolytic manganese and HPb59-1 copperhead to be prepared from.Making the copper-zinc-manganese alloy that contains manganese 30% like this can effectively reduce production costs.
The invention has the beneficial effects as follows: 1, the copper bar produced of brass alloys of the present invention has HS, high-elongation, and is not easy to crack, the characteristics that use characteristics is good.2, production technique is simple, and production cost is low.
Embodiment
Through specific embodiment, technical scheme of the present invention is further specified below.
The instance of brass alloys of the present invention is following:
Embodiment 1:
The moity of present embodiment brass alloys is: copper 58.14%, nickel 2.34%, manganese 2.20%, aluminium 1.36%, lead 0.76%, iron 0.24%, surplus are zinc and unavoidable impurities.
Embodiment 2:
The moity of present embodiment brass alloys is: copper 58.26%, nickel 2.42%, manganese 2.07%, aluminium 1.50%, lead 0.81%, iron 0.26%, surplus are zinc and unavoidable impurities.
Embodiment 3:
The moity of present embodiment brass alloys is: copper 58.50%, nickel 2.50%, manganese 1.90%, aluminium 1.38%, lead 0.64%, iron 0.19%, surplus are zinc and unavoidable impurities.
Embodiment 4:
The moity of present embodiment brass alloys is: copper 58.00%, nickel 2.20%, manganese 2.01%, aluminium 1.20%, lead 0.72%, iron 0.21%, surplus are zinc and unavoidable impurities.
Brass alloys processing process of the present invention is: raw material is prepared---melting---continuous casting---extrusion molding.
Concrete steps are:
A, raw material are prepared: with No. 2 purple composition brasses, the copper-zinc-manganese alloy that contains manganese 30%, nickeliferous 10 ~ 20% useless copper-nickel alloy, spelter and aluminum steels is raw material; According to the weight proportion of each raw material of brass alloys composition calculating, the copper-zinc-manganese alloy that contains manganese 30% adopts electrolytic manganese and HPb59-1 copperhead to be prepared from;
B, melting, continuous casting: in main frequency furnace, add the raw material melting, smelting temperature is at 1100 ~ 1200 ℃, adds earlier in the fusion process to contain the copper-zinc-manganese alloy of manganese 30% and nickeliferous 10 ~ 20% useless copper-nickel alloy carries out melting; Add purple composition brass melting then; Add spelter and aluminum steel melting after stirring again, pour holding furnace into after stirring, holding temperature is 900 ~ 1100 ℃; To become radius be the copper ingot of 65mm to continuous casting then, casting speed 70 ~ 100mm/min;
C, obtain copper bar 700 ~ 750 ℃ of following extrusion moldings at last.
Above-described embodiment is the preferable scheme of the present invention, is not the present invention is done any pro forma restriction, under the prerequisite that does not exceed the technical scheme that claim puts down in writing, also has other variant and remodeling.
Claims (4)
1. brass alloys that are used for copper bar; It is characterized in that: the weight percent of described brass alloys each component consists of: copper 58.00 ~ 58.50%, nickel 2.20 ~ 2.50%, manganese 1.90 ~ 2.20%, aluminium 1.20-1.50%, lead＜1.00%, iron＜0.30%, surplus are zinc and unavoidable impurities, and the ME of described brass alloys may further comprise the steps:
A, raw material are prepared: with purple composition brass, the copper-zinc-manganese alloy that contains manganese 30%, nickeliferous 10 ~ 20% useless copper-nickel alloy, spelter and aluminum steel is raw material, calculates the weight proportion of each raw material according to the brass alloys composition;
B, melting, continuous casting: in main frequency furnace, add the raw material melting; Smelting temperature is at 1100 ~ 1200 ℃, adds earlier in the fusion process to contain the copper-zinc-manganese alloy of manganese 30% and nickeliferous 10 ~ 20% useless copper-nickel alloy carries out melting, adds purple composition brass melting then; Add spelter and aluminum steel melting after stirring again; Pour holding furnace after stirring into, holding temperature is 900 ~ 1100 ℃, and continuous casting becomes copper ingot then;
C, at last 700 ~ 750 ℃ of following extrusion moldings.
2. ME that is used for the brass alloys of copper bar as claimed in claim 1, it is characterized in that: described ME may further comprise the steps:
A, raw material are prepared: with purple composition brass, the copper-zinc-manganese alloy that contains manganese 30%, nickeliferous 10 ~ 20% useless copper-nickel alloy, spelter and aluminum steel is raw material, calculates the weight proportion of each raw material according to the brass alloys composition;
B, melting, continuous casting: in main frequency furnace, add the raw material melting; Smelting temperature is at 1100 ~ 1200 ℃, adds earlier in the fusion process to contain the copper-zinc-manganese alloy of manganese 30% and nickeliferous 10 ~ 20% useless copper-nickel alloy carries out melting, adds purple composition brass melting then; Add spelter and aluminum steel melting after stirring again; Pour holding furnace after stirring into, holding temperature is 900 ~ 1100 ℃, and continuous casting becomes copper ingot then;
C, at last 700 ~ 750 ℃ of following extrusion moldings.
3. ME according to claim 2 is characterized in that: casting speed is 70 ~ 100mm/min.
4. according to claim 2 or 3 described ME, it is characterized in that: the described copper-zinc-manganese alloy that contains manganese 30% adopts electrolytic manganese and HPb59-1 copperhead to be prepared from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106116361A CN102086492B (en) | 2010-12-29 | 2010-12-29 | Brass alloy for copper bar and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106116361A CN102086492B (en) | 2010-12-29 | 2010-12-29 | Brass alloy for copper bar and manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102086492A CN102086492A (en) | 2011-06-08 |
| CN102086492B true CN102086492B (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106116361A Expired - Fee Related CN102086492B (en) | 2010-12-29 | 2010-12-29 | Brass alloy for copper bar and manufacturing process thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109468490A (en) * | 2019-01-07 | 2019-03-15 | 贵溪红石金属有限公司 | A kind of non-conventional copper bar production technology |
| CN114622111B (en) * | 2020-12-10 | 2023-01-31 | 北京有色金属与稀土应用研究所 | Bonding wiring material and preparation and processing method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5330712A (en) * | 1993-04-22 | 1994-07-19 | Federalloy, Inc. | Copper-bismuth alloys |
| DE10308778B3 (en) * | 2003-02-28 | 2004-08-12 | Wieland-Werke Ag | Lead-free brass with superior notch impact resistance, used in widely ranging applications to replace conventional brasses, has specified composition |
| KR100640273B1 (en) * | 2006-04-11 | 2006-11-01 | (주) 케이 이엔씨 | Lubricative copper alloy |
| CN101157998A (en) * | 2007-11-13 | 2008-04-09 | 浙江海亮股份有限公司 | Tin-brass alloy containing rare earth |
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2010
- 2010-12-29 CN CN2010106116361A patent/CN102086492B/en not_active Expired - Fee Related
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