CN104004941A - Low leaded brass alloy - Google Patents
Low leaded brass alloy Download PDFInfo
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- CN104004941A CN104004941A CN201410247387.0A CN201410247387A CN104004941A CN 104004941 A CN104004941 A CN 104004941A CN 201410247387 A CN201410247387 A CN 201410247387A CN 104004941 A CN104004941 A CN 104004941A
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- alloy
- brass
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- tin
- nickel
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- 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
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Domestic Plumbing Installations (AREA)
- Conductive Materials (AREA)
Abstract
The invention relates to a low leaded brass alloy which comprises the following components by weight percent: 59%-61% of copper, 0%-0.1% of lead, 0.5%-1.3% of bismuth, 0%-0.1% of iron, 0%-0.05% of aluminum, 0%-0.2% of tin, 0%-0.3% of nickel and the balance of zinc.
Description
Technical field
The present invention relates to a kind of low-lead brass alloy, relate to especially a kind of low-lead and easy-cutting brass alloys.
Background technology
Copper has good electroconductibility and environment friendliness, and the germ harmful to the mankind can not survive on its surface, for improving the performance of copper product, adds other element in copper, as added lead in copper zinc yellow copper, has greatly improved the cutting ability of brass.But in use contaminate environment of high-content leaded brass, in use has plumbous stripping, a serious harm human health especially for all kinds of valves, the fire hose in waterworks are first-class.
In addition, along with becoming increasingly conspicuous of environmental problem, environment for use is more severe, and the surface strength of brass ware is reduced, even cause brazed copper tube perforation, significantly shortens the work-ing life of brass ware, and causes the problem in application.
Therefore, just have and need to provide a kind of alternative containing a large amount leaded brass, and can reach anti-Dezincification corrosion, but still must take into account the alloy formula of castability, forging property, machinability, erosion resistance and mechanical properties, to solve aforesaid problem.
Summary of the invention
The object of the invention is to provide the brass alloys of the excellent performances such as a kind of tensile strength, unit elongation, anti dezincification character are good, machinability, is suitable as and needs the machining of high strength, wearability product.Can replace safely the alloyed copper that contains a large amount of lead, and meet the demand of human social development to products containing lead restriction completely.
The following low-lead brass alloy of motion in order to reach above-mentioned purpose.
A kind of low-lead brass alloy (hereinafter to be referred as contrivance 1), comprising: account for the copper of brass alloys gross weight 59-61wt%, the lead of 0-0.1wt%, the bismuth of 0.5-1.3wt%, remainder is zinc.
Thing 1 of the present invention is being down to plumbous content below 0.1wt%, controls the content of copper at 59-61wt%, adds the formation point cut-off of bismuth in alloy structure, increases brass alloys machinability with this.Bi content is too low can not well bring into play its effect, too highly easily produces hot tearing while forging, be unfavorable for producing, and be 0.5-1.3wt% therefore control the content of bismuth.
A kind of low-lead brass alloy (hereinafter to be referred as contrivance 2), comprise: account for the copper of brass alloys gross weight 59-61wt%, the lead of 0-0.1wt%, the bismuth of 0.5-1.3wt%, and more than one are selected from the element of aluminium, the tin of 0-0.2wt% and the nickel of 0-0.3wt% of the iron, the 0-0.05wt% that account for brass alloys gross weight 0-0.1wt%, remainder is zinc.
Compare, contrivance 2 further adds the iron of 0-0.1wt%, aluminium, the tin of 0-0.2wt% and/or the nickel of 0-0.3wt% of 0-0.05wt% on the basis of contrivance 1.Add iron object and be to strengthen alloy toughness; The object of adding aluminium, tin is further to improve the machinability of alloy, and aluminium can also improve alloy strength, wearability, casting fluidity and high-temperature oxidation simultaneously; Add nickel and can play antirust effect.But the too high levels of iron, aluminium, tin and nickel can affect the polishing performance of alloy, therefore in order to obtain the brass alloys of better performance, iron, aluminium, tin and nickel are controlled at respectively 0.1wt%, 0.05wt%, 0.2wt% and below 0.3wt%.Wherein whether the interpolation of iron, aluminium, tin and nickel needs to determine according to the product performance of actual production.
Preferably, in foregoing invention thing 2, the total content of iron, aluminium, tin and/or nickel is not less than the 0.1wt% of this brass alloys gross weight, obtains contrivance 3 with this.
More preferably, the total content of described iron, aluminium, tin and/or nickel is no more than the 0.5wt% of this brass alloys gross weight, obtains contrivance 4 with this.
Embodiment
In order to be illustrated more clearly in technical scheme of the present invention, below the mode by embodiment is described technology of the present invention.
Scope of the present invention is not intended to be limited to described example embodiment.(association area and the technician that learns present disclosure by associate) herein the feature of the present invention of explanation change and change in addition and within other application of the principle of the invention of explanation is considered to be in the scope of the invention herein.
Numerical value of the present invention in describing above, all represent to comprise given figure below.
In the present invention, be appreciated that with "and/or" " any one or more " that represent the element so connecting, connect in some cases the element existing and exist separably in other cases.
The anti-Dezincification corrosion performance test of indication is herein to carry out according to AS-2345-2006 specification with the form of as cast condition, adds 12.8g cupric chloride with 1000C.C deionized water, and will survey thing and place wherein, and the time is 24h, to record the dezincify degree of depth.
◎ represents that the dezincify degree of depth is less than 350 μ m; Zero represents that the dezincify degree of depth is between 350 μ m and 400 μ m; And ㄨ represents that the dezincify degree of depth is greater than 400 μ m.
The cutting ability of indication test is herein to carry out with the form of as cast condition, adopt identical cutter, identical cutting speed and the identical depth of cut, cutting speed be 25m/min (m/min), the depth of cut is 0.2mm/r (millimeter/every blade number), depth of cut 0.5mm, and coupon diameter is 20mm, and taking C36000 alloy material as benchmark, try to achieve relative stock removal rate via measuring cutting resistance.
Cutting resistance/sample cut resistance of stock removal rate=C36000 alloy material relatively.
◎ represents that relative stock removal rate is greater than 85%; Zero represents that relative stock removal rate is greater than 70%.
The tensile strength of indication and the test of unit elongation herein, all at room temperature carries out Elongation test with the form of as cast condition.Unit elongation is the total deformation Δ L of gauge length section after sample tension fracture and the percentage ratio of the ratio of former gauge length L: δ=Δ L/L × 100%.Control sample be same state same specification containing lead and yellow-collation brass, i.e. C36000 alloy.
The actual measurement of above-mentioned C36000 alloy material proportioning components is as follows, unit be weight percentage (wt%):
Embodiment 1
In table 1-1, be the contrivance 1 of 5 kinds of different componentss making according to above-mentioned technique, numbering is respectively 1001-1005, each component unit be weight percentage (wt%).
Table 1-1
| Numbering | Copper (Cu) | Zinc (Zn) | Plumbous (Pb) | Bismuth (Bi) |
| 1001 | 59.650 | 39.653 | 0.055 | 0.640 |
| 1002 | 60.305 | 39.093 | 0.100 | 0.500 |
| 1003 | 61.000 | 37.748 | 0.000 | 1.250 |
| 1004 | 59.000 | 39.618 | 0.080 | 1.300 |
| 1005 | 60.032 | 39.028 | 0.093 | 0.845 |
The alloy of said components is at room temperature carried out to the test of cutting ability, anti-Dezincification corrosion performance, tensile strength and unit elongation with the form of as cast condition, control sample is the Winn bronze of same state same specification, i.e. C36000 alloy.
Tensile strength, unit elongation, cutting ability and anti-Dezincification corrosion performance test result are as follows:
Embodiment 2
In table 2-1, be the contrivance 2 of 5 kinds of different componentss making according to above-mentioned technique, numbering is respectively 2001-2005, each component unit be weight percentage (wt%).
Table 2-1
| Numbering | Copper (Cu) | Zinc (Zn) | Plumbous (Pb) | Bismuth (Bi) | Iron (Fe) | Aluminium (AL) | Tin (Sn) | Nickel (Ni) |
| 2001 | 60.340 | 38.858 | 0.100 | 0.500 | 0.000 | 0.050 | 0.150 | 0.000 |
| 2002 | 59.000 | 39.684 | 0.085 | 0.854 | 0.100 | 0.020 | 0.000 | 0.255 |
| 2003 | 60.221 | 38.286 | 0.000 | 1.110 | 0.051 | 0.000 | 0.200 | 0.130 |
| 2004 | 59.870 | 32.662 | 0.013 | 1.300 | 0.085 | 0.000 | 0.132 | 0.300 |
| 2005 | 61.000 | 37.438 | 0.050 | 0.995 | 0.080 | 0.040 | 0.143 | 0.252 |
The alloy of said components is at room temperature carried out to the test of cutting ability, anti-Dezincification corrosion performance, tensile strength and unit elongation with the form of as cast condition, control sample is the Winn bronze of same state same specification, i.e. C36000 alloy.
Tensile strength, unit elongation, cutting ability and anti-Dezincification corrosion performance test result are as follows:
Embodiment 3
In table 3-1, be the contrivance 3 of 5 kinds of different componentss making according to above-mentioned technique, numbering is respectively 3001-3005, each component unit be weight percentage (wt%).
Table 3-1
| Numbering | Copper (Cu) | Zinc (Zn) | Plumbous (Pb) | Bismuth (Bi) | Iron (Fe) | Aluminium (AL) | Tin (Sn) | Nickel (Ni) |
| 3001 | 59.145 | 39.963 | 0.000 | 0.670 | 0.000 | 0.050 | 0.155 | 0.015 |
| 3002 | 59.000 | 40.104 | 0.006 | 0.500 | 0.054 | 0.034 | 0.000 | 0.300 |
| 3003 | 60.240 | 38.370 | 0.065 | 1.112 | 0.011 | 0.000 | 0.200 | 0.000 |
| 3004 | 61.000 | 37.081 | 0.100 | 1.300 | 0.100 | 0.050 | 0.112 | 0.255 |
| 3005 | 60.081 | 38.327 | 0.073 | 1.000 | 0.095 | 0.025 | 0.181 | 0.216 |
The alloy of said components is at room temperature carried out to the test of cutting ability, anti-Dezincification corrosion performance, tensile strength and unit elongation with the form of as cast condition, control sample is the Winn bronze of same state same specification, i.e. C36000 alloy.
Tensile strength, unit elongation, cutting ability and anti-Dezincification corrosion performance test result are as follows:
Embodiment 4
In table 4-1, be the contrivance 4 of 5 kinds of different componentss making according to above-mentioned technique, numbering is respectively 4001-4005, each component unit be weight percentage (wt%).
Table 4-1
| Numbering | Copper (Cu) | Zinc (Zn) | Plumbous (Pb) | Bismuth (Bi) | Iron (Fe) | Aluminium (AL) | Tin (Sn) | Nickel (Ni) |
| 4001 | 60.145 | 38.496 | 0.043 | 0.855 | 0.044 | 0.000 | 0.200 | 0.215 |
| 4002 | 61.000 | 38.039 | 0.000 | 0.500 | 0.100 | 0.004 | 0.055 | 0.300 |
| 4003 | 59.855 | 39.023 | 0.050 | 0.950 | 0.070 | 0.050 | 0.000 | 0.000 |
| 4004 | 59.000 | 39.368 | 0.032 | 1.300 | 0.085 | 0.013 | 0.100 | 0.100 |
| 4005 | 60.050 | 38.644 | 0.100 | 1.000 | 0.000 | 0.011 | 0.088 | 0.105 |
The alloy of said components is at room temperature carried out to the test of cutting ability, anti-Dezincification corrosion performance, tensile strength and unit elongation with the form of as cast condition, control sample is the Winn bronze of same state same specification, i.e. C36000 alloy.
Tensile strength, unit elongation, cutting ability and anti-Dezincification corrosion performance test result are as follows:
Although the present invention discloses as above with embodiment; so it is not in order to limit the present invention, any person skilled in the art person, without departing from the spirit and scope of the present invention; can do various changes and retouching, therefore protection scope of the present invention is worked as with standard that claims are decided to be.
Claims (4)
1. a low-lead brass alloy, is characterized in that, comprising: account for the copper of brass alloys gross weight 59-61wt%, the lead of 0-0.1wt%, the bismuth of 0.5-1.3wt%, remainder is zinc.
2. low-lead brass alloy as claimed in claim 1, is characterized in that, also comprises that more than one are selected from the element of aluminium, the tin of 0-0.2wt% and the nickel of 0-0.3wt% of the iron, the 0-0.05wt% that account for brass alloys gross weight 0-0.1wt%.
3. low-lead brass alloy as claimed in claim 2, is characterized in that, the total content of described iron, aluminium, tin and/or nickel is no less than the 0.1wt% of this brass alloys gross weight.
4. low-lead brass alloy as claimed in claim 3, is characterized in that, the total content of described iron, aluminium, tin and/or nickel is no more than the 0.5wt% of this brass alloys gross weight.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410247387.0A CN104004941B (en) | 2014-06-05 | 2014-06-05 | Low-lead brass alloy |
| US14/324,249 US20150354028A1 (en) | 2014-06-05 | 2014-07-07 | Low-lead brass alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410247387.0A CN104004941B (en) | 2014-06-05 | 2014-06-05 | Low-lead brass alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104004941A true CN104004941A (en) | 2014-08-27 |
| CN104004941B CN104004941B (en) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410247387.0A Active CN104004941B (en) | 2014-06-05 | 2014-06-05 | Low-lead brass alloy |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20150354028A1 (en) |
| CN (1) | CN104004941B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104388745A (en) * | 2014-11-13 | 2015-03-04 | 杭州美固科技有限公司 | Lead-free copper alloy |
| CN106119599A (en) * | 2016-06-23 | 2016-11-16 | 龙岩市鸿航金属科技有限公司 | Lead-free free-cutting draws the production method of casting rod |
| CN107043865A (en) * | 2016-12-13 | 2017-08-15 | 安徽兆利光电科技有限公司 | A kind of LED lamp holder base material and preparation method thereof |
| EP3259379B1 (en) * | 2015-02-16 | 2019-07-24 | Leofasi S.r.l. | An item made from a metal alloy |
| CN111101017A (en) * | 2019-12-31 | 2020-05-05 | 黑龙江北鸥卫浴用品有限公司 | Corrosion-resistant low-lead brass alloy, brass casting and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484710A (en) * | 2012-09-05 | 2014-01-01 | 阮伟光 | Bismuth brass alloy drawn bar containing trace rare earth and manufacture method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4296344B2 (en) * | 2003-03-24 | 2009-07-15 | Ｄｏｗａメタルテック株式会社 | Copper alloy material |
-
2014
- 2014-06-05 CN CN201410247387.0A patent/CN104004941B/en active Active
- 2014-07-07 US US14/324,249 patent/US20150354028A1/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484710A (en) * | 2012-09-05 | 2014-01-01 | 阮伟光 | Bismuth brass alloy drawn bar containing trace rare earth and manufacture method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104388745A (en) * | 2014-11-13 | 2015-03-04 | 杭州美固科技有限公司 | Lead-free copper alloy |
| EP3259379B1 (en) * | 2015-02-16 | 2019-07-24 | Leofasi S.r.l. | An item made from a metal alloy |
| CN106119599A (en) * | 2016-06-23 | 2016-11-16 | 龙岩市鸿航金属科技有限公司 | Lead-free free-cutting draws the production method of casting rod |
| CN107043865A (en) * | 2016-12-13 | 2017-08-15 | 安徽兆利光电科技有限公司 | A kind of LED lamp holder base material and preparation method thereof |
| CN111101017A (en) * | 2019-12-31 | 2020-05-05 | 黑龙江北鸥卫浴用品有限公司 | Corrosion-resistant low-lead brass alloy, brass casting and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104004941B (en) | 2016-10-26 |
| US20150354028A1 (en) | 2015-12-10 |
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