CN101665885A - Casting non-leaded easily-cutting brass - Google Patents

Casting non-leaded easily-cutting brass Download PDF

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Publication number
CN101665885A
CN101665885A CN200910044315A CN200910044315A CN101665885A CN 101665885 A CN101665885 A CN 101665885A CN 200910044315 A CN200910044315 A CN 200910044315A CN 200910044315 A CN200910044315 A CN 200910044315A CN 101665885 A CN101665885 A CN 101665885A
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brass
cutting
percent
leaded
antimony
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CN101665885B (en
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黄劲松
彭韬
李顺
张仲灵
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Central South University
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Central South University
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Abstract

The invention relates to casting non-leaded easily-cutting brass which contains the following components in percentage by mass: 56.0-68.0 percent of copper, 2.0-2.9 percent of manganese, 2.1-3.0 percent of stibium, 0.1-0.2 percent of ferrum, 0-0.05 percent of boron,0-0.1 percent of silicon, 0.2-0.3 percent of aluminum, 0.6-1.2 percent of scandium or yttrium and the balance of zinc, wherein the total amount of the manganese and the stibium is no more than 5.1 percent, and the total amount of impurities is no more than 0.05 percent. By adjusting the brass components, the invention optimizes themicrostructure of the brass and screens out the brass components with favorable cutting and casting properties from a series of components, wherein the fluidness is 60-70 cm and the cutting property is about 72-82 percent of that of HPb 59-1. The casting non-leaded easily-cutting brass is suitable for cutting and processing cast parts.

Description

A kind of casting non-leaded easily-cutting brass
Technical field
The present invention is a kind of metallic substance, relates to non-leaded easily-cutting brass.
Background technology
Plumbous when the casting of leaded brass melt is solidified, precipitation in alloy and form disperse and fine plumbous particle, the plumbous molecule that this disperse distributes in the leaded brass has at crystal boundary and intracrystalline.Lead has more crisp and soft characteristics, adds man-hour when leaded brass is cut, and smear metal is peeled off from the workpiece cutting by cutter head, and the plumbous particle of these disperses becomes stress raiser, produces so-called " notched effect ", thereby causes smear metal to be easy in this fracture; And the plumbous particle of these disperses is softer, can make tool bit abrasion reduce to minimum.Because plumbous particulate has at intracrystalline and crystal boundary, when leaded brass during in machining, smear metal runs into plumbous particulate soon and ruptures, and lacks so smear metal is thin.In addition, plumbous particulate fusing point lower (plumbous fusing point only is 327.5 ℃), cutter head does work to cutting workpiece during machining, and energy of deformation, frictional energy are transformed into heat energy, the local moment that cutter head is contacted with smear metal is rapidly heated, be easy near in addition surpass plumbous temperature of fusion.Softening even lead fusing can play the effect of lubricated cutter, can reduce cutting resistance and improve stock-removing efficiency.Therefore, lead plays a part cracked smear metal, reduces bonding and seam and improves cutting speed in the cutting process of brass material, can increase the work-ing life of cutter greatly.
Because plumbous inherent natural disposition, its size, pattern, quantity, characteristic, distribution situation, distributing position in leaded brass not only makes leaded brass have excellent cutting ability, and make leaded brass have advantages such as good castability, cold-forming property, hot workability and self-lubricating, can satisfy the machining requirement of different shape component.Winn bronze once by universally acknowledged be important base mateiral, be widely applied to foundry goods and many fields such as accessory, electronics, automobile and machinofacture thereof of domestic water supply system.
After the leaded brass spare and accessory parts were scrapped, a lot of smallclothes were used as rubbish and abandon, and have only to be recovered utilization on a small quantity.The depleted leaded brass contacts with soil, and its contained lead enters soil under rainwater and atmospheric long term, thus contaminated soil and water source.When discarded leaded brass was taken as waste incineration, plumbous steam distributed among atmosphere, human body is produced greatly harm, thereby it used the restriction that is subjected to strictness day by day.Lead under the effect of impurity in tap water and organic acid etc. in the copper alloy containing lead is slowly separated out with the ionic form, and existing copper alloy containing lead is difficult to satisfy the requirement of environmental protection act.
Development of new environment-protective free-cutting brass is an international problem, though obtained very big achievement at present, also has a large amount of needs of work to go to finish to improve performance, increase kind, to widen range of application.A large amount of lead-free free-cutting bismuth brass patents has been invented in America and Japan Europe, and a plurality of lead-free free-cutting bismuth brass patents have also been invented by China, as: leadless free-cutting brass alloy material and its manufacture method, 02121991.5; Leadless free-cutting brass alloy, 200310109162.0; Ecological, environmental protective new type leadless easy cutting low antimony bismuth brass alloys and manufacture method thereof, 200510050425.4; Pb-free copper-alloy, 200610005689.2; A kind of unleaded easy-cutting magnesium-bismuth-brass alloys, 200710098481.4.Above-mentioned non-leaded easily-cutting brass has one or more excellent performances at aspects such as cutting ability, cold and hot working performance, mechanical property, anti-stress cracking performance, corrosion resistances, indivedual performances even near the performance of leaded brass.But, compare with leaded brass, on castability, also have bigger gap.In fact, want to develop a kind of novel non-leaded easily-cutting brass that all properties is all complete and leaded brass compares favourably, also impossible at present.Current the most frequently used method proposes concrete performance requriements still at the processing conditions and the application requiring of free-cutting brass, and then according to performance index development of new brass.Bismuth element is the alloying element that a kind of replacement lead commonly used is used for free-cutting brass, and the patent of relevant bismuth brass also has a plurality of, such as: leadless free-cutting brass alloy material and its manufacture method, 02121991.5; Leadless free-cutting brass alloy, 200310109162.0; Ecological, environmental protective new type leadless easy cutting low antimony bismuth brass alloys and manufacture method thereof, 200510050425.4; Pb-free copper-alloy, 200610005689.2; A kind of unleaded easy-cutting magnesium-bismuth-brass alloys, 200710098481.4.Above-mentioned non-leaded easily-cutting brass has good machinability, but its castability compares with leaded brass and also have big gap, and its cost also is higher than leaded brass.
The present invention on the basis of multianalysis metallic character, by adjusting alloying constituent, optimizes the microtexture of alloy according to the metal cutting machining principle, filters out the brass composition with good cutting ability and castability from a series of composition.
Summary of the invention
The objective of the invention is to effectively solve the problem of leaded brass contaminate environment and unleaded bismuth brass foundry poor performance, alloy of the present invention does not adopt bismuth element commonly used, good castability is not only arranged but also good machinability is arranged.Can provide a kind of castability good non-leaded easily-cutting brass for fields such as electron device, hot-water heating bathroom, structural parts.
The massfraction of non-leaded easily-cutting brass composition of the present invention: copper (Cu) 56.0%-68.0%, manganese (Mn) 2.0%-2.9%, antimony (Sb) 2.1%-3.0%, iron (Fe) 0.1%-0.2%, boron (B) 0-0.05%, silicon (Si) 0-0.1%, aluminium (Al) 0.2%-0.3%, scandium (Sc) or yttrium (Y) 0.6%-1.2%, surplus is zinc (Zn), but the summation of manganese and antimony is no more than 5.1%, total impurities is no more than 0.05%.
Technical process of the present invention is as follows:
Line frequency furnace, medium-frequency induction furnace or resistance furnace are used in the preparation of casting non-leaded easily-cutting brass of the present invention, the composition quality mark is: copper (Cu) 56.0%-68.0%, manganese (Mn) 2.0%-2.9%, antimony (Sb) 2.1%-3.0%, iron (Fe) 0.1%-0.2%, boron (B) 0-0.05%, silicon (Si) 0-0.1%, aluminium (Al) 0.2%-0.3%, scandium (Sc) or yttrium (Y) 0.6%-1.2%, surplus is zinc (Zn), but the summation of manganese and antimony is no more than 5.1%, total impurities is no more than 0.05%.At first with the copper sheet fusing, follow-up order of addition(of ingredients) is: silicon, iron, boron, aluminium, calcium halophosphate activated by antimony andmanganese, scandium or yttrium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.
Advantage of the present invention:
1) non-leaded easily-cutting brass that invention castability is good does not adopt bismuth element commonly used, good castability is not only arranged but also good machinability is arranged.
2) realized the unleaded of free-cutting brass, alloy is not leaded, and is environmentally friendly, to HUMAN HEALTH.
3) production technique is simple, can utilize existing leaded brass equipment to produce, and only needs that it is carried out prepurging and handles, and does not need new investment.
Embodiment
Embodiment 1:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 56.0%, and manganese 2.0%, antimony (Sb) 2.1%, iron (Fe) 0.1%, aluminium 0.2%, scandium (Sc) 0.6%, surplus is zinc (Zn), total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: silicon, iron, boron, aluminium, calcium halophosphate activated by antimony andmanganese, scandium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 60cm, and cutting ability is equivalent to 76% of HPb59-1.
Embodiment 2:
Each composition quality mark of non-leaded easily-cutting brass is: copper 56.0%, and manganese 2.4%, antimony (Sb) 2.7%, iron (Fe) 0.1%, boron (B) 0.05%, aluminium (Al) 0.2%, scandium (Sc) 1.0%, surplus is zinc (Zn), total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: iron, boron, aluminium, calcium halophosphate activated by antimony andmanganese, scandium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 62cm, and cutting ability is equivalent to 82% of HPb59-1.
Embodiment 3:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 60.0%, and manganese (Mn) 2.6%, antimony (Sb) 2.5%, iron (Fe) 0.2%, aluminium (Al) 0.3%, scandium (Sc) 0.8%, surplus is zinc (Zn), total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: iron, aluminium, calcium halophosphate activated by antimony andmanganese, scandium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 68cm, and cutting ability is equivalent to 76% of HPb59-1.
Embodiment 4:
Each composition quality mark of non-leaded easily-cutting brass is: copper 64.0%, and manganese 2.3%, antimony 2.4%, iron 0.1%, boron 0.05%, silicon 0.01%, aluminium 0.2%, scandium 1.2%, surplus is a zinc, total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: silicon, iron, boron, aluminium, calcium halophosphate activated by antimony andmanganese, scandium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 66cm, and cutting ability is equivalent to 77% of HPb59-1.
Embodiment 5:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 68.0%, and manganese (Mn) 2.0%, antimony (Sb) 2.7%, iron (Fe) 0.2%, aluminium (Al) 0.3%, scandium (Sc) 0.8%, surplus is zinc (Zn), total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: iron, aluminium, calcium halophosphate activated by antimony andmanganese, scandium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 65cm, and cutting ability is equivalent to 78% of HPb59-1.
Embodiment 6:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 60.0%, manganese (Mn) 2.4%, antimony (Sb) 2.7%, iron (Fe) 0.1%, boron (B) 0.05%, silicon (Si) 0.1%, aluminium (Al) 0.3%, scandium (Sc) 1.0%, surplus are zinc (Zn), and total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: silicon, iron, boron, aluminium, calcium halophosphate activated by antimony andmanganese, scandium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 66cm, and cutting ability is equivalent to 80% of HPb59-1.
Embodiment 7:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 64.0%, manganese (Mn) 2.8%, antimony (Sb) 2.3%, iron (Fe) 0.2%, silicon (Si) 0.01%, aluminium (Al) 0.2%, scandium (Sc) 0.6%, surplus are zinc (Zn), and total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: silicon, iron, aluminium, calcium halophosphate activated by antimony andmanganese, scandium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 69cm, and cutting ability is equivalent to 72% of HPb59-1.
Embodiment 8:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 68.0%, manganese (Mn) 2.3%, antimony (Sb) 2.1%, iron (Fe) 0.2%, silicon (Si) 0.01%, aluminium (Al) 0.2%, scandium (Sc) 0.8%, surplus are zinc (Zn), and total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: silicon, iron, aluminium, calcium halophosphate activated by antimony andmanganese, scandium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 69cm, and cutting ability is equivalent to 73% of HPb59-1.
Embodiment 9:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 56.0%, and manganese (Mn) 2.3%, antimony (Sb) 2.1%, iron (Fe) 0.2%, boron (B) 0.05%, aluminium (Al) 0.3%, yttrium (Y) 0.6%, surplus is zinc (Zn), total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: iron, boron, aluminium, calcium halophosphate activated by antimony andmanganese, yttrium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 63cm, and cutting ability is equivalent to 75% of HPb59-1.
Embodiment 10:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 56.0%, and manganese (Mn) 2.4%, antimony (Sb) 2.7%, iron (Fe) 0.1%, boron (B) 0.05%, aluminium (Al) 0.2%, yttrium (Y) 1.0%, surplus is zinc (Zn), total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: iron, boron, aluminium, calcium halophosphate activated by antimony andmanganese, yttrium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 62cm, and cutting ability is equivalent to 81% of HPb59-1.
Embodiment 11:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 60.0%, and manganese (Mn) 2.6%, antimony (Sb) 2.5%, iron (Fe) 0.2%, aluminium (Al) 0.3%, yttrium (Y) 0.8%, surplus is zinc (Zn), total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: iron, aluminium, calcium halophosphate activated by antimony andmanganese, yttrium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 70cm, and cutting ability is equivalent to 76% of HPb59-1.
Embodiment 12:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 64.0%, manganese (Mn) 2.3%, antimony (Sb) 2.4%, iron (Fe) 0.1%, boron (B) 0.05%, silicon (Si) 0.1%, aluminium (Al) 0.2%, yttrium (Y) 1.2%, surplus are zinc (Zn), and total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: silicon, iron, boron, aluminium, calcium halophosphate activated by antimony andmanganese, yttrium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 66cm, and cutting ability is equivalent to 75% of HPb59-1.
Embodiment 13:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 68.0%, and manganese (Mn) 2.0%, antimony (Sb) 2.7%, iron (Fe) 0.2%, aluminium (Al) 0.3%, yttrium (Y) 0.8%, surplus is zinc (Zn), total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: iron, aluminium, calcium halophosphate activated by antimony andmanganese, yttrium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 64cm, and cutting ability is equivalent to 75% of HPb59-1.
Embodiment 14:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 60.0%, manganese (Mn) 2.4%, antimony (Sb) 2.7%, iron (Fe) 0.1%, boron (B) 0.05%, silicon (Si) 0.1%, aluminium (Al) 0.3%, yttrium (Y) 1.0%, surplus are zinc (Zn), and total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: silicon, iron, boron, aluminium, calcium halophosphate activated by antimony andmanganese, yttrium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 66cm, and cutting ability is equivalent to 80% of HPb59-1.
Embodiment 15:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 64.0%, and manganese (Mn) 2.8%, antimony (Sb) 2.3%, iron (Fe) 0.2%, silicon (Si) 0.1%, aluminium (Al) 0.2%, yttrium (Y) 0.6%, surplus is zinc (Zn), total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: silicon, iron, aluminium, calcium halophosphate activated by antimony andmanganese, yttrium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 61cm, and cutting ability is equivalent to 80% of HPb59-1.
Embodiment 16:
Each composition quality mark of non-leaded easily-cutting brass is: copper (Cu) 68.0%, manganese (Mn) 2.5%, antimony (Sb) 2.6%, iron (Fe) 0.2%, boron (B) 0.05%, silicon (Si) 0.1%, aluminium (Al) 0.3%, yttrium (Y) 1.2%, surplus are zinc (Zn), and total impurities is no more than 0.05%.After preparing starting material, at first with the copper sheet fusing, follow-up order of addition(of ingredients) is: silicon, iron, boron, aluminium, calcium halophosphate activated by antimony andmanganese, yttrium add zinc at last.After treating the fusing of all alloying elements, intensification, flame, coming out of the stove pours into swage and sand mold.Obtain machining sample and volution sample, respectively cutting ability, the flowability of beta alloy.The brass flowability of this composition is 66cm, and cutting ability is equivalent to 77% of HPb59-1.

Claims (2)

1. casting non-leaded easily-cutting brass, it is characterized in that: the mass content of each composition of brass is: copper 56.0%-68.0%, manganese 2.0%-2.9%, antimony 2.1%-3.0%, iron 0.1%-0.2%, boron 0-0.05%, silicon 0-0.1%, aluminium 0.2%-0.3%, scandium or yttrium 0.6%-1.2%, surplus is a zinc, and the summation of manganese and antimony is no more than 5.1%, and the impurity total mass is no more than 0.05%.
2. casting non-leaded easily-cutting brass according to claim 1 is characterized in that: each composition quality mark of brass is: copper 56.0%, manganese 2.4%, antimony 2.7%, iron 0.1%, boron 0.05%, aluminium 0.2%, scandium 1.0%, surplus is a zinc, total impurities is no more than 0.05%.
CN2009100443155A 2009-09-11 2009-09-11 Casting non-leaded easily-cutting brass Expired - Fee Related CN101665885B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102477497A (en) * 2010-11-30 2012-05-30 逢威工业(惠阳)有限公司 Non-lead-bismuth easily-cut antimony brass alloy
CN102776410A (en) * 2012-08-24 2012-11-14 李伟 Corrosion-resistant copper alloy
CN103757475A (en) * 2014-01-10 2014-04-30 滁州学院 High-strength free-cutting tin brass alloy material and preparation method thereof
CN103834845A (en) * 2014-03-10 2014-06-04 安徽厚林神雕金属艺术品有限公司 Copper alloy for precision casting of artwork, and preparation method and method for precision casting
CN108474063A (en) * 2015-12-10 2018-08-31 湖南特力新材料有限公司 A kind of alumina dispersion-strenghtened non-leaded easily-cutting brass of ODS and its manufacturing method

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US5630984A (en) * 1992-06-02 1997-05-20 Ideal-Standard Gmbh Brass alloy
CN1291051C (en) * 2004-01-15 2006-12-20 宁波博威集团有限公司 Non-lead free cutting antimony yellow copper alloy

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102477497A (en) * 2010-11-30 2012-05-30 逢威工业(惠阳)有限公司 Non-lead-bismuth easily-cut antimony brass alloy
CN102477497B (en) * 2010-11-30 2013-08-21 逢威工业(惠阳)有限公司 Non-lead-bismuth easily-cut antimony brass alloy
CN102776410A (en) * 2012-08-24 2012-11-14 李伟 Corrosion-resistant copper alloy
CN102776410B (en) * 2012-08-24 2014-05-07 宁波市阳光汽车配件有限公司 Corrosion-resistant copper alloy
CN103757475A (en) * 2014-01-10 2014-04-30 滁州学院 High-strength free-cutting tin brass alloy material and preparation method thereof
CN103757475B (en) * 2014-01-10 2016-01-20 滁州学院 A kind of production method of high-strength simple-cutting tin-brass alloy material
CN103834845A (en) * 2014-03-10 2014-06-04 安徽厚林神雕金属艺术品有限公司 Copper alloy for precision casting of artwork, and preparation method and method for precision casting
CN103834845B (en) * 2014-03-10 2015-11-11 安徽厚林神雕金属艺术品有限公司 A kind of preparation method of precision casting copper alloy of artwork and the method for precision casting
CN108474063A (en) * 2015-12-10 2018-08-31 湖南特力新材料有限公司 A kind of alumina dispersion-strenghtened non-leaded easily-cutting brass of ODS and its manufacturing method
CN108474063B (en) * 2015-12-10 2020-04-28 湖南特力新材料有限公司 Aluminum oxide dispersion-strengthened lead-free-cutting brass and manufacturing method thereof

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