CN101818285B - Brass alloy for environment-friendly drinking water pipe and pipe workpiece thereof - Google Patents
Brass alloy for environment-friendly drinking water pipe and pipe workpiece thereof Download PDFInfo
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- CN101818285B CN101818285B CN2010101447372A CN201010144737A CN101818285B CN 101818285 B CN101818285 B CN 101818285B CN 2010101447372 A CN2010101447372 A CN 2010101447372A CN 201010144737 A CN201010144737 A CN 201010144737A CN 101818285 B CN101818285 B CN 101818285B
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- Prior art keywords
- brass
- brass alloys
- pipe
- brass alloy
- alloys
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- 229910001369 Brass Inorganic materials 0.000 title claims abstract description 86
- 239000010951 brass Substances 0.000 title claims abstract description 86
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 66
- 239000000956 alloy Substances 0.000 title claims abstract description 66
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 8
- 239000003651 drinking water Substances 0.000 title claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000000137 annealing Methods 0.000 claims description 26
- 238000002360 preparation method Methods 0.000 claims description 13
- 238000002791 soaking Methods 0.000 claims description 11
- 238000005097 cold rolling Methods 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 24
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 19
- 229910052725 zinc Inorganic materials 0.000 abstract description 19
- 239000011701 zinc Substances 0.000 abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 16
- 229910052802 copper Inorganic materials 0.000 abstract description 16
- 239000010949 copper Substances 0.000 abstract description 16
- 229910052797 bismuth Inorganic materials 0.000 abstract description 14
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052759 nickel Inorganic materials 0.000 abstract description 12
- 238000003723 Smelting Methods 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 19
- 238000001514 detection method Methods 0.000 description 9
- 229910000581 Yellow brass Inorganic materials 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Domestic Plumbing Installations (AREA)
Abstract
The invention discloses a brass alloy for an environment-friendly drinking water pipe and a pipe workpiece made from the brass alloy. The brass alloy consists of the following raw materials in percentage by mass: 84 to 86 percent of copper, 2.8 to 3.5 percent of bismuth, 4.5 to 5.5 percent of nickel and 5 to 8.7 percent of zinc. The brass alloy and the pipe workpiece thereof are prepared by selecting appropriate raw material formulae, and the indexes such as flexibility, processability and the like of copper pipes obtained under same smelting and processing techniques are superior to that of the prior art.
Description
Technical field
The present invention relates to the metalworking technology field, relate in particular to a kind of brass alloys and tubing thereof that is used for the environment friendly drinking water pipe.
Background technology
Traditional brass is the alloy of main cupric and zinc, and the simplest brass is copper-zinc binary alloy, is called simple brass or market brass, and the content that changes zinc in the brass can obtain the brass of different mechanical propertys.The content of zinc is high more in the brass, and its intensity is also higher, and plasticity is low slightly.The brass zinc content that adopts in the industry generally is no more than 45% (weight percent), and zinc content is high again will to produce fragility, and alloy property is degenerated.Generally can add metals such as tin, lead for the performance of improving brass.As: the tin that adds 1% (weight percent) in brass can significantly improve the anti-seawater of brass, the ability and the machinability of sea atmosphere corrosion, therefore is called " admiraltymetal ".Most brass alloys have good color and luster, processibility and ductility, are easy to electroplate or application.
For machinery or the processing characteristics of further improving brass, people constantly improve the component of brass, for example application number is to disclose a kind of leadless free-cutting aluminum yellow brass alloy and manufacture method thereof in 200810188263.4 the Chinese invention patent application, this leadless free-cutting aluminum yellow brass alloy has good casting, welding, cutting and corrosion resisting property, be suitable for low-pressure casting, gravitational casting, horizontal casting, forge and extruding, required raw metal cost is lower than bismuth brass, be applicable to the required component of drinking water supply system and other structural part, it is a kind of new environment-friendly type cutting aluminum yellow brass alloy, each compositions in weight percentage is: copper 57.0%～63.0%, aluminium 0.3%～0.7%, bismuth 0.1%～0.5%, tin 0.2%～0.4%, silicon 0.02%～0.5%, phosphorus 0.01%～0.3%, optionally add magnesium, boron, at least two kinds of elements in rare earth metal and the zirconium, surplus is zinc and unavoidable impurities, the weight percentage of wherein selecting to add element is respectively magnesium 0.01%～0.15%, zirconium 0.01%～0.05%, rhenium 0.001%～0.05%, boron 0.0016%～0.0020%.Added a variety of metals in this alumin(i)um yellow brass, be unfavorable for the control of raw material in the industrial production, and cost has been higher.
Therefore, be necessary the component of brass alloys is improved, preferably can adopt comparatively succinct raw material to form the raising that realizes the brass alloys over-all properties.
Summary of the invention
The brass alloys that are used for the environment friendly drinking water pipe that the invention provides a kind of intensity height, good-extensibility and be convenient to process.
A kind of brass alloys that are used for the environment friendly drinking water pipe, form by the raw material of following mass percent:
Copper 84%～86%
Bismuth 2.8%～3.5%
Nickel 4.5%～5.5%
Zinc 5%～8.7%.
The general impurity that allows normal contents in raw material, but in order to guarantee the performance of the finished product, the impurity mass percent requires to be no more than 0.4%.
As preferably, brass alloys of the present invention are made up of the raw material of following mass percent:
Copper 84%～86%
Bismuth 3%～3.5%
Nickel 4.5%～5%
Zinc 6%～7.5%.
As further preferred, brass alloys of the present invention are made up of the raw material of following mass percent:
Copper 85%
Bismuth 3.2%
Nickel 5%
Zinc 6.8%.
In the optimized technical scheme, brass alloys have better tensile strength, yield strength and elongation, and promptly mechanics processing characteristics, ductility and snappiness are better.
The present invention also provides a kind of brass pipe that utilizes described brass alloys to make, and this tubing is high comprehensive performance but also environmental protection not only, can be used as the tap water pipe fitting.
The raw material of brass alloys of the present invention can adopt prior art to carry out founding and obtain the brass alloys ingot casting, correlation technique can adopt Chinese invention patent application 200410084660.9,200710023433.9,200710023964.8 etc., as preferred the present invention the brass alloys ingot casting is obtained brass pipe through cold rolling, anaerobic annealing, stretching, destressing anaerobic after annealing.
The present invention also provides a kind of working method of described brass pipe, comprises after the brass alloys ingot casting is through cold rolling, anaerobic annealing, stretching, the annealing of destressing anaerobic obtaining brass pipe.
In the working method of brass pipe, can all adopt prior art, but as preferred, in order on the basis of component prescription, further to improve the over-all properties of tubing, when carrying out anaerobic annealing, soaking time is 1.5 hours～2 hours during annealing, and holding temperature is 750 ± 5 ℃.If soaking time is too short, temperature is not enough, and pressure is excessive motionless in the time of can causing extruded tube.If temperature is too high, soaking time is long, can cause the head cracking.Stretched obtain tubing after, be 280 ℃～320 ℃ in order to eliminate the destressing anaerobic annealing temperature that internal stress carries out, soaking time is 1 hour-1.5 hours, can obtain stable shape and geometric accuracy like this.
Emphasis of the present invention is at the improvement of brass alloys and tubing component, under equal melting, complete processing, indexs such as the intensity of the copper pipe that obtains, hardness, snappiness are better than prior art, and high comprehensive performance and environmental protection can be used as the tap water pipe fitting that metal content is had relatively high expectations.
Embodiment
The preparation of embodiment 1 brass alloys
The raw material that adopts following mass percent to form carries out founding, obtains the ingot casting of brass alloys.
Copper 85%
Bismuth 3.2%
Nickel 5%
Zinc 6.8%.
After testing, the brass alloys performance index are as follows:
Tensile strength 60GPa;
Yield strength 48MPa;
Elongation 66%;
Rockwell hardness HRF100;
Detection shows that it is good that brass alloys of the present invention have good ductility and snappiness and processing characteristics, is convenient to processing.
The preparation of embodiment 2 brass alloys
The raw material that adopts following mass percent to form carries out founding, obtains the ingot casting of brass alloys.
Copper 86%
Bismuth 3.5%
Nickel 4.5%
Zinc 6%.
After testing, the brass alloys performance index are as follows:
Tensile strength 48GPa;
Yield strength 35MPa;
Elongation 60%;
Rockwell hardness HRF90;
Detection shows that it is good that brass alloys of the present invention have good ductility and snappiness and processing characteristics, is convenient to processing.
The preparation of embodiment 3 brass alloys
The raw material that adopts following mass percent to form carries out founding, obtains the ingot casting of brass alloys.
Copper 84.7%
Bismuth 3%
Nickel 4.8%
Zinc 7.5%.
After testing, the brass alloys performance index are as follows:
Tensile strength 52GPa;
Yield strength 27MPa;
Elongation 56%;
Rockwell hardness HRF88;
Detection shows that it is good that brass alloys of the present invention have good ductility and snappiness and processing characteristics, is convenient to processing.
The preparation of embodiment 4 brass alloys
The raw material that adopts following mass percent to form carries out founding, obtains the ingot casting of brass alloys.
Copper 84%
Bismuth 2.8%
Nickel 5.5%
Zinc 7.7%.
After testing, the brass alloys performance index are as follows:
Tensile strength 35GPa;
Yield strength 22MPa;
Elongation 50%;
Rockwell hardness HRF65;
Detection shows, brass alloys of the present invention have preferably ductility and snappiness and processing characteristics good, be convenient to processing.
The preparation of embodiment 5 brass alloys
The raw material that adopts following mass percent to form carries out founding, obtains the ingot casting of brass alloys.
Copper 85.5%
Bismuth 3.5%
Nickel 5.5%
Zinc 5.5%.
After testing, the brass alloys performance index are as follows:
Tensile strength 30GPa;
Yield strength 11MPa;
Elongation 48%;
Rockwell hardness HRF60;
Detection shows, brass alloys of the present invention have preferably ductility and snappiness and processing characteristics good, be convenient to processing.
The preparation of embodiment 6 brass alloys
The raw material that adopts following mass percent to form carries out founding, obtains the ingot casting of brass alloys.
Copper 86%
Bismuth 3.5%
Nickel 5.5%
Zinc 5%.
After testing, the brass alloys performance index are as follows:
Tensile strength 42GPa;
Yield strength 15MPa;
Elongation 55%;
Rockwell hardness HRF70;
Detection shows, brass alloys of the present invention have preferably ductility and snappiness and processing characteristics good, be convenient to processing.
The preparation of embodiment 7 brass pipes
Adopt the ingot casting of the brass alloys of embodiment 1 preparation, through obtaining the tubing of φ 44 * 3.5 (mm) after cold rolling, anaerobic annealing, stretching, the annealing of destressing anaerobic.
When carrying out anaerobic annealing, soaking time is 1.5 hours during annealing, and holding temperature is at 750 ℃, and destressing anaerobic annealing temperature is 280 ℃, is incubated 1 hour.
The preparation of embodiment 8 brass pipes
Adopt the ingot casting of the brass alloys of embodiment 2 preparations, through obtaining the tubing of φ 44 * 3.5 (mm) after cold rolling, anaerobic annealing, stretching, the annealing of destressing anaerobic.
When carrying out anaerobic annealing, soaking time is 2 hours during annealing, and holding temperature is at 755 ℃, and destressing anaerobic annealing temperature is 320 ℃, soaking time 1.5 hours.
The preparation of embodiment 9 brass pipes
Adopt the ingot casting of the brass alloys of embodiment 5 preparations, through obtaining the tubing of φ 44 * 3.5 (mm) after cold rolling, anaerobic annealing, stretching, the annealing of destressing anaerobic.
When carrying out anaerobic annealing, soaking time is 1.5 hours during annealing, and holding temperature is at 745 ℃, and destressing anaerobic annealing temperature is 300 ℃, soaking time 1 hour.
Comparative Examples 1
The raw material that adopts following mass percent to form carries out founding, obtains the ingot casting of brass alloys.
Copper 70%
Bismuth 6%
Nickel 10%
Zinc 14%.
After testing, the brass alloys performance index are as follows:
Tensile strength 800MPa;
Yield strength 10MPa;
Elongation 10%;
Rockwell hardness HRF60;
Detection shows that brass alloys of the present invention have better ductility and snappiness and processing characteristics, is convenient to processing.
Comparative Examples 2
The raw material that adopts following mass percent to form carries out founding, obtains the ingot casting of brass alloys.
Copper 86%
Bismuth 2%
Nickel 7%
Zinc 5%.
After testing, the brass alloys performance index are as follows:
Tensile strength 900MPa;
Yield strength 9.8MPa;
Elongation 12%;
Rockwell hardness HRF75;
Detection shows that brass alloys of the present invention have better ductility and snappiness and processing characteristics, is convenient to processing.
Comparative Examples 3
The raw material that adopts following mass percent to form carries out founding, obtains the ingot casting of brass alloys.
Copper 86%
Zinc 14%.
After testing, the brass alloys performance index are as follows:
Tensile strength 720MPa;
Yield strength 55MPa;
Elongation 8%;
Rockwell hardness HRF65;
Detection shows that brass alloys of the present invention have better ductility and snappiness and processing characteristics, is convenient to processing.
Claims (6)
1. brass alloys that are used for drinking-water pipe is characterized in that, the raw material that adopts following mass percent to form carries out founding:
2. brass alloys as claimed in claim 1 is characterized in that, the raw material that adopts following mass percent to form carries out founding:
3. brass pipe that adopts claim 1 or the preparation of 2 described brass alloys.
4. the working method of a brass pipe is characterized in that, obtains brass pipe after will adopting claim 1 or 2 described brass alloys through foundings, cold rolling, anaerobic annealing, stretching, the annealing of destressing anaerobic.
5. working method as claimed in claim 4 is characterized in that, temperature is 750 ± 5 ℃ during anaerobic annealing, soaking time 1.5 hours～2 hours.
6. working method as claimed in claim 5 is characterized in that, destressing anaerobic annealing temperature is 280 ℃～320 ℃, and soaking time is 1 hour-1.5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101447372A CN101818285B (en) | 2010-04-12 | 2010-04-12 | Brass alloy for environment-friendly drinking water pipe and pipe workpiece thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101447372A CN101818285B (en) | 2010-04-12 | 2010-04-12 | Brass alloy for environment-friendly drinking water pipe and pipe workpiece thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101818285A CN101818285A (en) | 2010-09-01 |
| CN101818285B true CN101818285B (en) | 2011-08-17 |
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| CN2010101447372A Expired - Fee Related CN101818285B (en) | 2010-04-12 | 2010-04-12 | Brass alloy for environment-friendly drinking water pipe and pipe workpiece thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011528A (en) * | 2016-05-18 | 2016-10-12 | 来安县赛华管业有限公司 | Environment-friendly alloy pipe material used for drinking water pipe |
| CN106086506A (en) * | 2016-05-18 | 2016-11-09 | 来安县赛华管业有限公司 | A kind of drinking-water pipe with bacteriostasis efficacy |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101203623A (en) * | 2005-06-21 | 2008-06-18 | 株式会社栗本铁工所 | Copper alloy water channel components |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5360591A (en) * | 1993-05-17 | 1994-11-01 | Kohler Co. | Reduced lead bismuth yellow brass |
| CN100469517C (en) * | 2007-05-29 | 2009-03-18 | 江阴新华宏铜业有限公司 | Method for preparing copper and nickel alloy seamless copper tube |
| CN101381825B (en) * | 2008-10-27 | 2010-04-14 | 中铝洛阳铜业有限公司 | Environment friendly free-cutting bronze alloy processing technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101203623A (en) * | 2005-06-21 | 2008-06-18 | 株式会社栗本铁工所 | Copper alloy water channel components |
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