CN101225487B - Arsenic-containing low-lead brass alloy - Google Patents
Arsenic-containing low-lead brass alloy Download PDFInfo
- Publication number
- CN101225487B CN101225487B CN2008100659066A CN200810065906A CN101225487B CN 101225487 B CN101225487 B CN 101225487B CN 2008100659066 A CN2008100659066 A CN 2008100659066A CN 200810065906 A CN200810065906 A CN 200810065906A CN 101225487 B CN101225487 B CN 101225487B
- Authority
- CN
- China
- Prior art keywords
- arsenic
- lead
- brass alloy
- alloy
- copper
- 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.)
- Active
Links
Landscapes
- Adornments (AREA)
Abstract
The invention belongs to a manufacturing field of metal alloy materials, especially relates to a brass alloy. The invention is an arsenic-containing low-lead brass alloy which comprises the components based on a weight percentage as follows: 58 to 60% of copper, 36 to 37.5% of zinc, 0.6 to 0.65% of aluminum, 1.2% to 1.6% of bismuth, 0.05% to 0.1% of arsenic, 0.45% to 0.65% of tin, 0.1% to 1.0% of nickel, 0.2% to 0.5% of iron, 0.01% to 1.0% of sulfur, 0 to 0.01% of rhenium, 0 to 0.01% of phosphor and selenium, 0 to 0.05% of silicon and chromium, 0.02% of manganese, 0 to 0.08% of magnesium, 0.005% to 0.% of stibonium, and balance impurity. Compared with the prior art, the arsenic-containing low-lead brass alloy has the advantages of better polishing and optical rotation, corrosion resistance and strength performance, thereby avoiding influencing mechanical properties and cutting performance of brass alloy, and meeting the environmental protection and human health purposes.
Description
Technical field
The invention belongs to metal alloy compositions and make the field, relate in particular to a kind of brass alloys.
Background technology
Brass is widely used in technical fields such as electronics, building, machinery, and the brass performance comprises castability, workability, erosion resistance, heat conductivity and electroconductibility.A main shortcoming relates to machinability.Because certain viscosity of copper is understood in cutting because of generation high temperature, and then makes copper adhere to the consumption of cutter and energization.Wherein add plumbous brass alloys and at high temperature have plasticity preferably, can forge and cast, can make it obtain favorable mechanical performance, mechanical property and cutting ability simultaneously.The used brass alloys of bathroom manufacturing are generally C37700 and forge the polish copper alloy at present, C37710 ordinary copper alloy, C85700 casting ordinary copper alloy, C85710 casting polish copper alloy, however the scope of the lead tolerance of above copper alloy is greatly about 1.5%-2.5%.Above copper alloy containing lead casting forge piece is when bathroom pipeline industry is used, and the lead in the alloy can be partially dissolved in the water, and the lead content of measuring in the water according to science can reach more than the 50ppm.
Lead is a kind of element to environment and human body harmful, and plumbous blood and neural system to human body particularly causes irreversible damage to children's kidney and cranial nerve, and serious meeting causes blood lead, brain lead poisoning, backwardness, dementia, adverse consequences such as active.Medical expert has all over the world found that leaded brass has constituted threat to human health and environmental health in recent years, thereby national governments have put into effect in succession to ordering within a certain time that copper alloy containing lead is used, and states such as the U.S., European Union, Japan have done strict restriction respectively to the lead content in the copper alloy with in the leaching amount of Pb in Drinking Water.USEPA limited at the lead content in the tap water specially in 2000, required the tap water lead content to be reduced to 15ppm from original 50ppm.The ROHS command request that on July 1st, 2006 came into force: the Electrical and Electronic product that on July 1st, 2006 was thrown in European Union later on must not contain objectionable impuritiess such as lead, cadmium, its lead content＜0.01%, cadmium content＜0.001%.The bathroom manufacturing also need meet ANSI/NSF 61 and drinking-water system composition health requirements.Seepage discharge to the metallic lead of crossing water can not surpass 11PPB, and California, USA requirement especially can not surpass 5PPB.Along with the raising day by day of people's environment protection and health perception, low lead and free-cutting copper alloy are more and more paid close attention to by people, develop toward reducing in copper and removing plumbous direction.
In the processing of low-lead brass, mainly be that difficulty of processing is big at present, size is wayward, and the cutter life-span easy to wear is short, and low-lead brass is made in copper die casting casting in bronze, exists washing shrinkage bigger than normal, and crystal is thick.On coppersmithing, be prone to crack performance, mobile poor, and become type hardness tester to increase, post-production is more difficult.
Therefore, be badly in need of developing a kind of low-lead brass alloy, can replace lead-containing materials so far, in product die casting with good machinability. casting. forging can change its structure property, need not to change processing conditions thereby reach crystal.
Summary of the invention
In order to solve the harm that heavy metal lead causes in the prior art to environment and HUMAN HEALTH; existing low-lead brass difficulty of processing is big; size is wayward; the cutter life-span easy to wear is short; make in copper die casting casting in bronze; washing shrinkage is bigger than normal, crystal is thick, be prone to crack performance; mobile poor; and become type hardness tester to increase; post-production is the deficiency of difficulty etc. more; the invention provides a kind of brass alloys mechanical property and machinability of not influencing, meet the arsenic-containing low-lead brass alloy of environment protection and health of people again more.
The present invention solves the technical scheme that the prior art problem adopted: a kind of arsenic-containing low-lead brass alloy, it is characterized in that: the composition of its each component is respectively 58-60% copper, 36-37.5% zinc, 0.6-0.65% aluminium, 1.2-1.6% bismuth, 0.05-0.1% arsenic, 0.45-0.65% tin, 0.1-1.0% nickel, 0.2-0.5% iron, 0.01-1.0% sulphur, 0-0.01% rhenium by weight percentage, the phosphorus of 0-0.01% and selenium, the silicon of 0-0.05% and chromium, 0.02% manganese, the magnesium of 0-0.08%, the antimony of 0.005-0.1%, surplus are impurity.
Among the present invention, add bismuth with the lead in the existing brass alloys of basic replacement.Because of bismuth is the same with lead, can generate low melting point eutectic with copper, it is hot-short that copper is produced; And brittle bismuth is when being film like and being distributed in crystal boundary, and it is cold short that copper is produced.Replace lead by bismuth, can reduce plumbous harm greatly, do not influence brass alloys mechanical property and machinability again human body.Simultaneously, contain the zinc of 37-43% among the present invention, but be higher than 20% Mock platina, Dezincification corrosion easily takes place at zinc content.Add an amount of arsenic among the present invention and just can suppress its Dezincification corrosion.Because of arsenic has very big solid solubility in copper, arsenic exists intensive to reduce its electric conductivity and heat conductivility in copper, can reduce the electropotential of copper, thereby has reduced the galvanic corrosion tendency, prevents brass dezincification corrosion.
According to a preferred embodiment of the invention: a kind of low-lead brass alloy of the present invention wherein contains and is no more than 0.2% lead.
According to a preferred embodiment of the invention: a kind of low-lead brass alloy of the present invention contains 59.5% bronze medal, 36.5% zinc, 0.60% aluminium, 1.60% bismuth, 0.10% arsenic, 0.65% tin, 0.25% nickel, 0.20% iron, 0.10% sulphur and 0.01% rhenium.
According to a preferred embodiment of the invention: a kind of low-lead brass alloy of the present invention contains 58.0% bronze medal, 37.5% zinc, 0.60% aluminium, 1.35% bismuth, 0.05% arsenic, 0.65% tin, 0.25% nickel, 0.50% iron, 0.10% sulphur and 0.01% rhenium.
According to a preferred embodiment of the invention: a kind of low-lead brass alloy of the present invention contains 60.0% bronze medal, 36.0% zinc, 0.65% aluminium, 1.20% bismuth, 0.05% arsenic, 0.45% tin, 0.25% nickel, 0.30% iron and 0.10% sulphur, 0.01% rhenium.
According to a preferred embodiment of the invention: a kind of low-lead brass alloy of the present invention also contains and respectively is no more than 0.01% phosphorus and selenium.
According to a preferred embodiment of the invention: a kind of low-lead brass alloy of the present invention also contains and respectively is no more than 0.05% silicon and chromium.
According to a preferred embodiment of the invention: a kind of low-lead brass alloy of the present invention also contains 0.02% manganese and is no more than 0.08% magnesium.
According to a preferred embodiment of the invention: a kind of low-lead brass alloy of the present invention also contains the antimony of 0.005-0.1%.
For prior art, the present invention uses bismuth metal to replace lead in the alloy, and adds some oligo-elementss, as arsenic; Thereby change die casting, the processability of casting and forged material flowability energy, and copper rod moulding with the defective of the cutting ability difference of the copper alloy that improves the later stage, reduce the content of poisonous element, have good machinability, formability, high erosion resistance.Compare with plumbiferous cutting brass, possess identical cutting ability, processability and metal flow performance.Possesses better throwing rotary light performance, corrosion resistance nature and better intensity performance.Resulting alloy is used for sand mold casting, gravitational casting, and low-pressure casting, pressure die casting, and forging and pressing, punching press, the copper rod moulding, mechanical workout, polishing, and surface treatment prepares various products.The present invention does not influence brass alloys mechanical property and machinability, meets the low-lead brass alloy of environment protection and health of people again more.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment 1
Utilize Medium frequency induction to draw the casting stove, in copper melts, by composition proportion and order of addition(of ingredients), add zinc, aluminium, bismuth metal, arsenic, tin, nickel, iron, sulphur, rhenium, rare earth copper master alloy, some micro-fining agents after stirring, are cast into ∮ 42_2500mm alloy copper rod.Wherein each composition is respectively by weight percentage: 59.5% bronze medal, 36.5% zinc, 0.60% aluminium, 1.60% bismuth, 0.10% arsenic, 0.65% tin, 0.25% nickel, 0.20% iron, 0.10% sulphur, 0.01% rhenium also comprise inevitable impurity.
The mechanical property that the low cupro lead that adopts above-mentioned production technique to produce pushes and is drawn into behind the pole is:
| Standard | Sulphur TM/CDA | JIS | DIN | |
| The trade mark | C37700/CDA377 | C3771 | CuZn36Pb1.5 | |
| Specification | 16-65.0mm | |||
| Performance | Good heat is dashed, cold-heading and ductility, and is good | Annular knurl, high tenacity and corrosion-resistant. | ||
| Unit elongation (%) | Tensile strength (Mpa) | Yield strength (Mpa) | End face shrinking percentage (%) | Hardness (HB) |
| 13.0 | 650.0 | 580.0 | 35.0 | 75.0 |
| Purposes | Be applicable to that various heat are dashed, complicated moulding, the converted products of surface requirements and other component of environmental requirement are arranged. | ? | ? | ? |
Experimental results show that: this alloy has good forge hot performance, and reaching the refinement of ductility surface structure does not have be full of cracks, has its performance of good polishing performance, and every stress test is up to state standards.
Embodiment 2
Utilize Medium frequency induction to draw the casting stove, in copper melts, by composition proportion and order of addition(of ingredients), add zinc, aluminium, bismuth metal, arsenic, tin, nickel, iron, sulphur, rhenium, phosphor bronze alloy, with a spot of selenium, silicon, chromium, manganese, magnesium, antimony, rare earth copper master alloy, some micro-fining agents after stirring, are cast into ∮ 27_2500mm alloy copper rod.Its each composition is respectively by weight percentage: 58.0% bronze medal, 37.5% zinc, 0.60% aluminium, 1.35% bismuth, 0.05% arsenic, 0.65% tin, 0.25% nickel, 0.50% iron, 0.10% sulphur, 0.01% rhenium, 0.008% phosphorus, 0.006% selenium, 0.03% silicon, 0.02% chromium, 0.02% manganese and 0.01% magnesium, 0.006% antimony also comprise inevitable impurity.
The mechanical property that the low cupro lead that adopts above-mentioned production technique to produce pushes and is drawn into behind the pole is:
| Standard | Sulphur TM/CDA | JIS | DIN | |
| The trade mark | C36000/CDA360 | C3604 | CuZn39Pb3 | |
| Specification | 16-65.0mm | |||
| Performance | Have fabulous cutting, boring performance, the intensity height, plasticity is good, and erosion resistance is strong. | |||
| Unit elongation (%) | Tensile strength (Mpa) | Yield strength (Mpa) | End face shrinking percentage (%) | Hardness (HB) |
| 11.0 | 700.0 | 590.0 | 32.0 | 78.0 |
| Purposes | Be applicable to self-acting lathe, digital controlled lathe, turret lathe is processed with the product of ecological, environmental protective and healthy requirement, as the component of connecting parts tap water engineering. |
Experimental results show that: this alloy has good cutting ability, the intensity height, and plasticity is good, and erosion resistance is strong, and every stress test is up to state standards.
Embodiment 3
Utilize medium-frequency induction furnace, in copper melts, by composition proportion and order of addition(of ingredients), add zinc, aluminium, bismuth metal, arsenic, tin, nickel, iron, sulphur, rhenium, phosphor bronze alloy, with a spot of selenium, silicon, chromium, manganese, magnesium, antimony, rare earth copper master alloy, some micro-fining agents are after stirring, with gravitational casting mold forming water nozzle body.Its each composition is respectively by weight percentage: 60.0% bronze medal, 36.0% zinc, 0.65% aluminium, 1.20% bismuth, 0.05% arsenic, 0.45% tin, 0.25% nickel, 0.30% iron, 0.10% sulphur, 0.01% rhenium, 0.003% phosphorus, 0.009% selenium, 0.01% silicon, 0.05% chromium, 0.02% manganese and 0.03% magnesium, 0.007% antimony also comprise inevitable impurity.
The mechanical property of this alloy is during as cast condition:
| Standard | Sulphur TM/CDA | JIS | DIN |
| The trade mark | C37700/CDA377 | C3601 | CuZn36Pb1.5 |
| Specification | Casting | ||
| Performance | Have fabulous moulding, cutting, intensity height, erosion resistance is strong. | ||
| Unit elongation (%) | Tensile strength (Mpa) | Yield strength (Mpa) | Hardness (HB) |
| 8.5 | 250.0 | 202.0 | 80 |
| Purposes | Be applicable to the various castings of component, its internal structure is numerous and diverse, needs the surface of good handling property, and the product of ecological, environmental protective and healthy requirement is as numerous and diverse water spare etc. of crossing of sanitaryware |
Experimental results show that: this alloy flow performance is good, has good cutting ability, and cutting ability and H59-1 are suitable, shrinkage porosite is few, and wall is non-leakage under 8KgI air pressure between the die cavity, and good cavity structure is arranged, every stress test is up to state standards, and anti dezincification character can have lifting, and polishing performance is excellent.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. arsenic-containing low-lead brass alloy, it is characterized in that: the composition of its each component is respectively 58-60% copper, 36-37.5% zinc, 0.6-0.65% aluminium, 1.2-1.6% bismuth, 0.05-0.1% arsenic, 0.45-0.65% tin, 0.1-1.0% nickel, 0.2-0.5% iron, 0.01-1.0% sulphur, 0-0.01% rhenium by weight percentage, the phosphorus of 0-0.01% and selenium, the silicon of 0-0.05% and chromium, 0.02% manganese, the magnesium of 0-0.08%, the antimony of 0.005-0.1%, surplus is an impurity.
2. arsenic-containing low-lead brass alloy, it is characterized in that: the composition of its each component is respectively 58-60% copper, 36-37.5% zinc, 0.6-0.65% aluminium, 1.2-1.6% bismuth, 0.05-0.1% arsenic, 0.45-0.65% tin, 0.1-1.0% nickel, 0.2-0.5% iron, 0.01-1.0% sulphur, 0-0.01 rhenium % by weight percentage, the lead of 0-0.2%, the phosphorus of 0-0.01% and selenium, the silicon of 0-0.05% and chromium, 0.02% manganese, the magnesium of 0-0.08%, the antimony of 0.005-0.1%, surplus are impurity.
3. arsenic-containing low-lead brass alloy, it is characterized in that: the composition of its each component is respectively 59.5% bronze medal, 36.5% zinc, 0.60% aluminium, 1.60% bismuth, 0.10% arsenic, 0.65% tin, 0.25% nickel, 0.20% iron, 0.10% sulphur and 0.01% rhenium by weight percentage, and surplus is an impurity.
4. arsenic-containing low-lead brass alloy, it is characterized in that: the composition of its each component is respectively 58.0% bronze medal, 37.5% zinc, 0.60% aluminium, 1.35% bismuth, 0.05% arsenic, 0.65% tin, 0.25% nickel, 0.50% iron, 0.10% sulphur and 0.01% rhenium by weight percentage, 0.008% phosphorus, 0.006% selenium, 0.03% silicon, 0.02% chromium, 0.02% manganese, 0.01% magnesium, 0.006% antimony, surplus is an impurity.
5. arsenic-containing low-lead brass alloy, it is characterized in that: the composition of its each component is respectively 60.0% bronze medal, 36.0% zinc, 0.65% aluminium, 1.20% bismuth, 0.05% arsenic, 0.45% tin, 0.25% nickel, 0.30% iron, 0.10% sulphur and 0.01% rhenium by weight percentage, 0.003% phosphorus, 0.009% selenium, 0.01% silicon, 0.05% chromium, 0.02% manganese, 0.03% magnesium, 0.007% antimony, surplus is an impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100659066A CN101225487B (en) | 2008-01-15 | 2008-01-15 | Arsenic-containing low-lead brass alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100659066A CN101225487B (en) | 2008-01-15 | 2008-01-15 | Arsenic-containing low-lead brass alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101225487A CN101225487A (en) | 2008-07-23 |
| CN101225487B true CN101225487B (en) | 2011-04-06 |
Family
ID=39857692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100659066A Active CN101225487B (en) | 2008-01-15 | 2008-01-15 | Arsenic-containing low-lead brass alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101225487B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2688994C (en) * | 2008-12-23 | 2011-10-04 | Chuankai Xu | Lead-free free-cutting aluminum brass alloy and its manufacturing method |
| TWI398532B (en) * | 2010-01-22 | 2013-06-11 | Modern Islands Co Ltd | Lead-free brass alloy |
| CN102206772A (en) * | 2010-03-30 | 2011-10-05 | Lclip有限公司 | Brass allloy |
| TW201241193A (en) * | 2011-04-15 | 2012-10-16 | Yuang Hsian Metal Ind Corp | Brass crystallization crystalline structure |
| CN102312123A (en) * | 2011-09-02 | 2012-01-11 | 浙江艾迪西流体控制股份有限公司 | Brass alloy |
| CN102400011A (en) * | 2011-11-30 | 2012-04-04 | 珠海承鸥卫浴用品有限公司 | Low-lead anti-corrosion forging yellow brass alloy and manufacturing method thereof |
| CN102400012A (en) * | 2011-11-30 | 2012-04-04 | 珠海承鸥卫浴用品有限公司 | Low-lead anti-corrosion casting yellow brass alloy and manufacturing method thereof |
| CN102534296A (en) * | 2012-02-27 | 2012-07-04 | 佛山市日丰企业有限公司 | Copper alloy material |
| US9246298B2 (en) * | 2012-06-07 | 2016-01-26 | Cymer, Llc | Corrosion resistant electrodes for laser chambers |
| CN102690973B (en) * | 2012-06-07 | 2014-03-12 | 宁波天业精密铸造有限公司 | Lead-free free-cutting brass alloy and preparation method thereof |
| CN103469004B (en) * | 2013-08-14 | 2015-12-02 | 永和流体智控股份有限公司 | A kind of Pb-free copper-alloy material |
| CN103834833B (en) * | 2013-12-05 | 2016-08-10 | 湖南水口山有色金属集团有限公司 | A kind of arsenical copper zinc foundry alloy and production method thereof |
| CN103695700B (en) * | 2013-12-17 | 2015-04-15 | 江西鸥迪铜业有限公司 | Easily-cut tin-brass alloy and preparation method thereof |
| CN106521211A (en) * | 2016-12-09 | 2017-03-22 | 钦州市钦南区科学技术情报研究所 | Self-lubricating copper alloy material and preparation method |
| CN107497881B (en) * | 2017-08-17 | 2019-04-05 | 南京禹智智能科技有限公司 | A kind of processing technology of tellurium selenium copper stick |
| CN109266899A (en) * | 2018-11-16 | 2019-01-25 | 宁波金田铜业(集团)股份有限公司 | Low anti-dezincification value DZR copper ingot of a kind of environmental protection and preparation method thereof |
-
2008
- 2008-01-15 CN CN2008100659066A patent/CN101225487B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101225487A (en) | 2008-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101225487B (en) | Arsenic-containing low-lead brass alloy | |
| CN100567533C (en) | Pb-free copper-alloy | |
| AU613411B2 (en) | Cu base-zn-sn-bi alloys | |
| CA2639394C (en) | Tin-free lead-free free-cutting magnesium brass alloy and its manufacturing method | |
| CA2639301C (en) | Lead-free free-cutting phosphorous brass alloy and its manufacturing method | |
| CN104004946B (en) | 690-730MPa superstrength 80-100mm hardening capacity aluminium alloy and preparation method thereof | |
| TWI550106B (en) | Low lead free bismuth no silicon brass alloy | |
| JP2007517981A (en) | Lead-free free-cutting brass alloy containing antimony | |
| CN1099470C (en) | Iron modified tin brass | |
| CN103509967B (en) | A kind of gravitational casting special DZR environment-friendly yellow brass alloy ingot and manufacture craft thereof | |
| JP2011140713A (en) | Brass alloy having superior stress corrosion resistance and method of manufacturing the same | |
| US8273192B2 (en) | Lead-free, bismuth-free free-cutting phosphorous brass alloy | |
| CN110106393A (en) | A kind of wear-resisting aluminium bronze of high manganese and preparation method thereof | |
| CN102618747A (en) | Free cutting brass alloy | |
| CN109852852A (en) | High strength die-casting aluminium alloy and preparation method and aluminium alloy casting piece manufacturing method | |
| CN107974573B (en) | Manganese-containing free-cutting silicon brass alloy and preparation method and application thereof | |
| CN100491558C (en) | High-performance yttrium-base heavy rare earth copper alloy die material and preparation method thereof | |
| JP6679742B2 (en) | Tin-containing copper alloy, its manufacturing method, and its use | |
| JP6057109B2 (en) | Lead, bismuth and silicon free brass | |
| JP6679741B2 (en) | Tin-containing copper alloy, its manufacturing method, and its use | |
| CN102400010A (en) | Lead-free free-cutting phosphorus-magnesium-calcium yellow brass alloy | |
| CN104745863B (en) | A kind of low lead brass alloys of resistance to dezincification for being applied to casting | |
| CN103509968A (en) | Special low-lead environment-friendly brass alloy ingot for gravity casting and manufacturing technique thereof | |
| CN102952966A (en) | Bismuth brass alloy material and preparation process and hot stamping process thereof | |
| CA2687452C (en) | Brass alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |