CN103946402A - Brass alloy without lead, bismuth and silicon - Google Patents
Brass alloy without lead, bismuth and silicon Download PDFInfo
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- CN103946402A CN103946402A CN201480000087.0A CN201480000087A CN103946402A CN 103946402 A CN103946402 A CN 103946402A CN 201480000087 A CN201480000087 A CN 201480000087A CN 103946402 A CN103946402 A CN 103946402A
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Abstract
The present invention relates to a brass alloy without lead, bismuth and silicon. The brass comprises 60-65 wt% of copper, 0.01-0.15 wt% of stibium, 0.1-0.5wt% of magnesium, at least one component selected from 0.1-0.7 wt% of aluminum, 0.05-0.5 wt% of stannum, 0.05-0.5 wt% of manganese and 0.001-0.01 wt% of boracic, and the balance zinc. The brass alloy of the present invention doesn't contain lead and can't cause lead pollution, and doesn't contain bismuth and silicon, so the machinability of the brass alloy is better.
Description
Technical field
The present invention relates to a kind of environment-friendly yellow brass alloy, relate to especially the brass alloy material of the anti-dezincify of a kind of easy cutting.
Background technology
The general brass as processing use, the ratio that can add zinc metal is 38-42%.In order to allow brass better process, there is the lead of 2-3% brass the inside conventionally to gain in strength and processibility.Winn bronze has excellent formability (easily making different shape product), machinability and wear resistant and is widely used in the machined part of different shape, occupies larger ratio in copper industry, is the important foundation material of generally acknowledging in the world.But, Winn bronze produce or use procedure in, easily there is the plumbous form stripping with solid-state or gaseous state, medical research points out, plumbous to human body hematopoiesis and neural system particularly children's kidney and the infringement of other organs larger.Countries in the world all take much count of the pollution that lead causes and the harm causing, national sanitary foundation international (National Sanitation Foundation, NSF) lead element tolerance is decided to be below 0.25%, hazardous substances restriction instruction (the Restriction of Hazardous Substances Directive of European Union, regulation in succession all such as RoHS), limits and forbids the use containing high leaded brass.
In addition, in the time that the zinc content in brass exceedes 20wt%, easily there is the corrosion phenomenon of dezincify (dezincification), particularly when the environment of this brass contact high chloride ion, for example, when briny environment, can accelerate the generation of Dezincification corrosion phenomenon.Due to the structure of dezincification meeting havoc brass alloys, the surface strength of brass ware is reduced, even cause brazed copper tube perforation, significantly shorten the work-ing life of brass ware, and cause the problem in application.
Therefore, just have and need to provide a kind of alternative containing high 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
From prior art, can there is (sometimes as κ phase) taking γ phase form in silicon in alloy microstructure, and now silicon can replace plumbous effect in alloy to a certain extent, puies forward heavy alloyed machinability.The machinability of alloy is along with the content of silicon increases and improves, but the fusing point of silicon is high, proportion is low, and oxidizable, after therefore silicon monomer being added in stove in alloy molten process, silicon floats on alloy surface, in the time of alloy molten, silicon can be oxidized to silicon oxide or other oxide compounds, be difficult for making siliceous copper alloy, and if add silicon in the mode of Cu-Si alloy, Financial cost is higher.
Replace lead and can become in alloy structure and cut breakpoint and add bismuth, increase machinability, easily produce hot tearing but bi content is too high while forging, be unfavorable for producing.
Therefore the object of the invention is to provide the brass alloys of the excellent performances such as the good and machinability of a kind of tensile strength, unit elongation, anti dezincification character, be suitable as and need the machining of high strength, wearability product, and the constituent material of forged article and cast product etc. uses.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.
In order to reach above-mentioned purpose motion following unleaded without bismuth without silicon brass alloy.
A kind of unleaded without bismuth without the good brass alloys of silicon machinability (hereinafter to be referred as contrivance 1), comprising: account for copper, the antimony of 0.01-0.15wt% and the magnesium of 0.1-0.5wt% of brass alloys gross weight 60-65wt%, remainder is zinc.
Thing 1 of the present invention, in the situation that removing lead, silicon and bismuth, is controlled the content of copper at 60-65wt%, adds a small amount of antimony and magnesium, makes it to form intermetallic compound with copper, to increase the machinability of alloy, also helps the anti dezincification character of alloy simultaneously.In other words, in contrivance 1, add antimony and improved mutually its machinability with magnesium formation γ.The metallographic structure of this alloy mainly comprises α phase, β phase, γ phase, and be distributed in soft and crisp intermetallic compound in crystal boundary or crystal grain, wherein copper and zinc form the main component of brass alloys, have added antimony and magnesium except improving the machinability of alloy, also help anti dezincification character simultaneously.
When the content of antimony is lower than 0.01wt%, the content of magnesium is during lower than 0.1wt%, and the alloy of formation cannot reach needed basic machinability in industrial production.And the machinability of alloy can increase along with the increase of the content of antimony and magnesium, be 0.15wt% but work as antimony content in alloy, when Mg content is 0.5wt%, the effect of improving of the machinability of alloy reaches capacity.
A kind of unleaded without bismuth without the good brass alloys of silicon machinability (hereinafter to be referred as contrivance 2), comprise: the copper that accounts for brass alloys gross weight 60-65wt%, the antimony of 0.01-0.15wt%, the magnesium of 0.1-0.5wt%, and accounting for phosphorus and/or the 0.05-0.5wt% manganese of brass alloys gross weight 0.05-0.3wt%, remainder is zinc.
Compare, contrivance 2 further adds and accounts for the phosphorus of brass alloys gross weight 0.05-0.3wt% and/or the manganese of 0.05-0.5wt% on the basis of contrivance 1.Although phosphorus cannot form γ phase, phosphorus has the antimony of making, magnesium forms the mutually well-distributed function of γ, puies forward thus heavy alloyed machinability.After adding phosphorus, γ disperses the crystal grain that makes main α phase simultaneously, has improved castability, the erosion resistance of alloy.When the content of copper, antimony and magnesium is respectively 60-65wt%, when 0.01-0.15wt% and 0.1-0.5wt%, the content of phosphorus during lower than 0.05wt%, cannot be brought into play its effect, but when the content of phosphorus is during higher than 0.3wt%, can make on the contrary the castability of alloy and erosion resistance reduce.Add manganese and contribute to strengthen anti dezincification character and the casting fluidity of alloy, when the content of manganese cannot effectively be brought into play its effect lower than 0.05wt%, and performance value of reaching capacity of acting on while being 0.5wt% of its content.
A kind of unleaded without bismuth without the good brass alloys of silicon machinability (hereinafter to be referred as contrivance 3), comprise: the copper that accounts for brass alloys gross weight 60-65wt%, the antimony of 0.01-0.15wt%, the magnesium of 0.1-0.5wt%, and accounting for the manganese of brass alloys gross weight 0.05-0.5wt%, the aluminium of 0.1-0.7wt%, tin, the phosphorus of 0.05-0.3wt% and/or the boron of 0.001-0.01wt% of 0.05-0.5wt%, remainder is zinc.
Contrivance 3 has further added and has accounted for the manganese of brass alloys gross weight 0.05-0.5wt%, the aluminium of 0.1-0.7wt%, tin, the phosphorus of 0.05-0.3wt% and/or the boron of 0.001-0.01wt% of 0.05-0.5wt% on the basis of contrivance 1.
Add tin is in order to form γ phase equally in alloy, puies forward heavy alloyed machinability, and tin add the intensity that has improved significantly alloy, and its plasticity is improved, erosion resistance strengthens.But consider that adding tin can make cost higher, therefore add aluminium in adding tin, except improving the machinability of alloy, also can improve alloy strength, wearability, casting fluidity and high-temperature oxidation, in order to bring into play preferably above-mentioned effect, the content of tin and aluminium is respectively 0.05-0.5wt% and 0.1-0.7wt%.In alloy, add trace B to put forward heavy alloyed corrosion resisting property, and can better suppress alloy dezincify after adding boron, strengthen its physical strength simultaneously, can change the defect structure of copper alloy surface Red copper oxide film simultaneously, make Red copper oxide film more even, densification, antifouling property is good.The content of boron can not be brought into play above-mentioned effect during lower than 0.001wt%, and above-mentioned performance also cannot further improve during higher than 0.01wt%, therefore the preferably content of boron is 0.001-0.01wt%.The content interval of phosphorus and manganese is consistent with contrivance 2, and its reason is identical with the reason of contrivance 2.Wherein whether the interpolation of antimony, magnesium, aluminium, tin, phosphorus, manganese and/or boron is that the height difference requiring for machinability according to different products is selected.
A kind of unleaded without bismuth without the good brass alloys of silicon machinability (hereinafter to be referred as contrivance 4), comprise: the copper that accounts for brass alloys gross weight 60-65wt%, the antimony of 0.01-0.15wt%, the magnesium of 0.1-0.5wt%, and account for the manganese of brass alloys gross weight 0.05-0.5wt%, the aluminium of 0.1-0.7wt%, tin, the phosphorus of 0.05-0.3wt% and/or the boron of 0.001-0.01wt% of 0.05-0.5wt%, remainder is zinc, and wherein the total content of manganese, aluminium, tin, phosphorus and/or boron is no more than the 2wt% of this brass alloys gross weight.
A kind of unleaded without bismuth without the good brass alloys of silicon machinability (hereinafter to be referred as contrivance 5), comprise: the copper that accounts for brass alloys gross weight 60-65wt%, the antimony of 0.01-0.15wt%, the magnesium of 0.1-0.5wt%, and account for the manganese of brass alloys gross weight 0.05-0.5wt%, the aluminium of 0.1-0.7wt%, tin, the phosphorus of 0.05-0.3wt% and/or the boron of 0.001-0.01wt% of 0.05-0.5wt%, remainder is zinc, and wherein the total content of manganese, aluminium, tin, phosphorus and/or boron accounts for the 0.2-2wt% of this brass alloys gross weight.
A kind of unleaded without bismuth without the good brass alloys of silicon machinability (hereinafter to be referred as contrivance 6), comprise: the copper that accounts for brass alloys gross weight 60-65wt%, the antimony of 0.01-0.15wt%, the magnesium of 0.1-0.5wt%, and account for the manganese of brass alloys gross weight 0.05-0.5wt%, the aluminium of 0.1-0.7wt%, the tin of 0.05-0.5wt%, the phosphorus of 0.05-0.3wt% and/or the boron of 0.001-0.01wt%, remainder is zinc and inevitable impurity, wherein inevitably impurity comprises: account for the nickel below brass alloys gross weight 0.25wt%, chromium below 0.15wt% and/or the iron below 0.25wt%.
Contrivance 6 has comprised some inevitable impurity, i.e. mechanical impurity nickel, chromium and/or iron on the basis of contrivance 3.
A kind of unleaded without bismuth without the good brass alloys of silicon machinability (hereinafter to be referred as contrivance 7), comprise: account for the copper of brass alloys gross weight 60-65wt%, the tin of 0.05-0.5wt%, be selected from two or more the aluminium, the phosphorus of 0.05-0.3wt% and the manganese element of 0.05-0.5wt% that account for brass alloys gross weight 0.1-0.7wt%, and remainder is zinc.
In the situation that there is no antimony and magnesium, add and account for alloy gross weight 0.05-0.5wt% tin, can meet equally the needs of industrial production to machinability, its content is got interval consistent with contrivance 3, and reason is also identical with the reason that contrivance 3 is set forth; Wherein whether the interpolation of aluminium, phosphorus, manganese is that the height requiring for machinability according to different products is selected, and its content is got interval consistent with contrivance 3, and reason is also identical with the reason that contrivance 3 is set forth.
A kind of unleaded without bismuth without the good brass alloys of silicon machinability (hereinafter to be referred as contrivance 8), comprise: account for the copper of brass alloys gross weight 60-65wt%, the tin of 0.05-0.5wt%, the two or more aluminium, the phosphorus of 0.05-0.3wt% and the manganese elements of 0.05-0.5wt% that account for brass alloys gross weight 0.1-0.7wt% of being selected from, and accounting for antimony, the magnesium of 0.1-0.5wt% and/or the boron of 0.001-0.01wt% of brass alloys gross weight 0.01-0.15wt%, remainder is zinc.
Wherein whether the interpolation of antimony, magnesium, aluminium, tin, phosphorus, manganese and/or boron is that the height requiring for machinability according to different products is selected, and its content is got interval consistent with contrivance 3, and reason is also identical with the reason that contrivance 3 is set forth.
A kind of unleaded without bismuth without the good brass alloys of silicon machinability (hereinafter to be referred as contrivance 9), comprise: the copper that accounts for brass alloys gross weight 60-65wt%, the tin of 0.05-0.5wt%, the two or more aluminium that accounts for brass alloys gross weight 0.1-0.7wt% that is selected from, the phosphorus of 0.05-0.3wt% and the manganese element of 0.05-0.5wt%, and account for the antimony of brass alloys gross weight 0.01-0.15wt%, the magnesium of 0.1-0.5wt% and/or the boron of 0.001-0.01wt%, remainder is zinc and inevitable impurity, wherein inevitably impurity comprises: account for the nickel below brass alloys gross weight 0.25wt%, chromium below 0.15wt% and/or the iron below 0.25wt%.
Contrivance 9 has comprised some inevitable impurity, i.e. mechanical impurity nickel, chromium and/or iron on the basis of contrivance 8.
A kind of unleaded without bismuth without the good brass alloys of silicon machinability (hereinafter to be referred as contrivance 10), comprise: the copper that accounts for brass alloys gross weight 60-65wt%, the antimony of 0.01-0.15wt% and the magnesium of 0.1-0.5wt% and more than one are selected from the element of phosphorus, the manganese of 0.05-0.5wt% and the boron of 0.001-0.01wt% of tin, the 0.05-0.3wt% of the aluminium, the 0.05-0.5wt% that account for brass alloys gross weight 0.1-0.7wt%, and remainder is zinc.
Wherein the interpolation of aluminium, tin, phosphorus, manganese and/or boron whether and content be that the height requiring for machinability according to different products is selected, it is consistent with contrivance 3 that its content is got interval, reason is also identical with the reason that contrivance 3 is set forth.
A kind of unleaded without bismuth without the good brass alloys of silicon machinability (hereinafter to be referred as contrivance 11), comprise: the copper that accounts for brass alloys gross weight 60-65wt%, the antimony of 0.01-0.15wt% and the magnesium of 0.1-0.5wt%, and more than one are selected from the aluminium that accounts for brass alloys gross weight 0.1-0.7wt%, the tin of 0.05-0.5wt%, the phosphorus of 0.05-0.3wt%, the element of the manganese of 0.05-0.5wt% and the boron of 0.001-0.01wt%, remainder is zinc and inevitable impurity, wherein inevitably impurity comprises: account for the nickel below brass alloys gross weight 0.25wt%, chromium below 0.15wt% and/or the iron below 0.25wt%.
Contrivance 11 has comprised some inevitable impurity, i.e. mechanical impurity nickel, chromium and/or iron on the basis of contrivance 10.
The present invention further provides a kind of manufacture method of brass alloys, taking a kind of scheme in contrivance 3 as example, comprise the following steps:
1) provide copper and manganese and be warming up to 1000-1050 DEG C, making this copper and this manganese form a cupromanganese liquation;
2) temperature that reduces this cupromanganese liquation is to 950-1000 DEG C;
3) cover a glass slag former in the surface of this cupromanganese liquation;
4) add zinc to this cupromanganese liquation, and form a bronze medal MnZn liquation;
5) this copper MnZn liquation is removed the gred, add antimony, aluminium, tin, magnesium to brass alloy material liquation, and form a molten metal;
6) raise the temperature of this molten metal to 1000-1050 DEG C, and add boron copper alloy, phosphor copper and form one unleaded without bismuth without silicon brass alloy liquation;
7) this brass alloys liquation is come out of the stove casting and is formed this brass alloy material.
Preferably, in above-mentioned manufacture method, provide the source of cupromanganese as copper, manganese element.
Preferably, in above-mentioned manufacture method, calciner used is high frequency calciner, and described high frequency calciner is interior taking plumbago crucible as furnace lining.
High frequency calciner has that the speed of melting is fast, quick heating, clean pollution-free and fusion processes stir characteristics such as (affected by magnetic line of force) voluntarily.
Unleaded described in the present invention without bismuth without silicon brass alloy, after adding according to certain proportion via various different substancess, produce the machining property suitable with known Winn bronze through high frequency calciner again, and good tensile strength, unit elongation, anti dezincification character are good, and it is not leaded, be suitable as replace known Winn bronze alloy material and for the manufacture of product, the spare and accessory parts of for example water tap or bath articles.
Brief description of the drawings
Fig. 1 is the manufacture method schema of a kind of scheme in contrivance 3.
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.
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 100 μ m; Zero represents that the dezincify degree of depth is between 100 μ m and 200 μ m; And ㄨ represents that the dezincify degree of depth is greater than 200 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.
Wherein C36000 alloy material proportioning components actual measurement is as follows, unit be weight percentage (wt%):
Fig. 1 is the manufacture method schema of a kind of scheme of contrivance 3, comprises the following steps:
Step S100: copper and manganese are provided.In this step, can provide cupromanganese as the source that this copper and manganese element are provided.
Step S102: copper manganese mother alloy is heated between 1000-1050 DEG C, make copper manganese mother alloy form a cupromanganese liquation.In this step, this cupromanganese can be added to high frequency calciner, and in calciner, melt intensification, temperature is raised between 1000-1050 DEG C, even up to 1100 DEG C, its process continues 5-10 minute, makes cupromanganese melt into a cupromanganese liquation.Above-mentioned action can be avoided a large amount of ambient atmos of liquid-absorbent that makes copper manganese melt because temperature is too high, causes the alloy material of moulding to produce cracking.
Step S104: the temperature that reduces cupromanganese liquation is between 950-1000 DEG C.In this step, when being warming up in calciner between 1000-1050 DEG C, in the time of lasting 5-10 minute, close the power supply of high frequency calciner, make the temperature in calciner drop to 950-1000 DEG C, this cupromanganese liquation also keeps molten state simultaneously.
Step S106: cover glass slag former is in the surface of cupromanganese liquation.In this step, glass slag former is covered in to the surface of the cupromanganese liquation of 950-1000 DEG C, this step effectively liquid barrier contacts with air, and prevents that next step zinc adding from volatilizing because high-temperature digestion produces boiling between 950-1000 DEG C.
Step S108: add zinc to cupromanganese liquation, and form a bronze medal MnZn liquation.In this step, add zinc to calciner, and make to sink to cupromanganese liquation, make fully to melt between zinc and cupromanganese liquation, and form a bronze medal MnZn liquation.
Step S110: copper MnZn liquation is removed the gred.In this step, after the effect that can first copper MnZn liquation be responded to by high frequency is uniformly mixed, then slag former is picked up.And then use deslagging agent to remove the gred.
Step S112: add antimony, aluminium, tin, magnesium to copper MnZn liquation, and form a molten metal.In this step, can add copper antimony mother alloy, copper aluminium mother alloy, copper tin mother alloy, copper-magnesium alloy to copper MnZn liquation.
Step S114: the temperature of rising molten metal is between 1000-1050 DEG C, and add Cu-B alloy and phosphor copper, and form unleaded without bismuth without silicon brass alloy liquation.
Step S116: brass alloys liquation is come out of the stove to casting and formed brass alloys.In this step, after this brass alloys liquation of uniform stirring, tapping temperature is controlled between 1000-1050 DEG C, finally again this brass alloys liquation is come out of the stove cast out unleaded without bismuth without all good brass alloys of silicon, good, the resistance to dezincify of processing characteristics and mechanical property.
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) | Magnesium (Mg) | Antimony (Sb) |
| 1001 | 62.605 | 36.839 | 0.254 | 0.010 |
| 1002 | 64.355 | 34.819 | 0.402 | 0.022 |
| 1003 | 65.000 | 34.198 | 0.100 | 0.150 |
| 1004 | 60.000 | 39.373 | 0.122 | 0.103 |
| 1005 | 61.005 | 38.040 | 0.500 | 0.143 |
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) | Magnesium (Mg) | Antimony (Sb) | Manganese (Mn) | Phosphorus (P) |
| 2001 | 60.000 | 39.044 | 0.352 | 0.012 | --- | 0.300 |
| 2002 | 64.501 | 34.340 | 0.403 | 0.010 | 0.302 | 0.152 |
| 2003 | 63.522 | 35.226 | 0.500 | 0.150 | 0.050 | ---- |
| 2004 | 65.000 | 34.144 | 0.220 | 0.132 | 0.252 | 0.050 |
| 2005 | 61.522 | 37.173 | 0.100 | 0.051 | 0.500 | 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 8 kinds of different componentss making according to above-mentioned technique, numbering is respectively 3001-3008, each component unit be weight percentage (wt%).
Table 3-1
| Numbering | Copper (Cu) | Zinc (Zn) | Magnesium (Mg) | Antimony (Sb) | Aluminium (Al) | Tin (Sn) | Manganese (Mn) | Phosphorus (P) | Boron (P) |
| 3001 | 63.502 | 35.309 | 0.103 | 0.018 | 0.500 | 0.052 | 0.050 | 0.173 | 0.001 |
| 3002 | 60.000 | 37.758 | 0.500 | 0.047 | 0.522 | 0.500 | 0.051 | 0.252 | ---- |
| 3003 | 65.221 | 33.233 | 0.487 | 0.010 | 0.622 | 0.050 | 0.032 | 0.050 | 0.010 |
| 3004 | 63.523 | 34.577 | 0.273 | 0.095 | 0.303 | 0.351 | 0.067 | 0.300 | 0.008 |
| 3005 | 63.210 | 34.673 | 0.100 | 0.032 | 0.700 | ---- | 0.500 | 0.178 | 0.004 |
| 3006 | 65.000 | 33.244 | 0.211 | 0.150 | 0.352 | 0.235 | 0.253 | ---- | 0.003 |
| 3007 | 60.351 | 38.339 | 0.195 | 0.111 | ---- | 0.111 | 0.488 | 0.203 | ---- |
| 3008 | 60.132 | 38.716 | 0.107 | 0.100 | 0.100 | ---- | 0.231 | 0.210 | 0.002 |
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 8 kinds of different componentss making according to above-mentioned technique, numbering is respectively 4001-4008, each component unit be weight percentage (wt%).
Table 4-1
| Numbering | Copper (Cu) | Zinc (Zn) | Magnesium (Mg) | Antimony (Sb) | Manganese (Mn) | Aluminium (Al) | Tin (Sn) | Phosphorus (P) | Boron (P) |
| 4001 | 61.833 | 37.142 | 0.302 | 0.011 | 0.050 | 0.155 | 0.050 | 0.155 | ---- |
| 4002 | 62.501 | 36.327 | 0.253 | 0.015 | ---- | 0.200 | 0.355 | 0.050 | 0.008 |
| 4003 | 60.000 | 38.425 | 0.271 | 0.122 | 0.053 | 0.100 | 0.500 | 0.179 | 0.010 |
| 4004 | 65.000 | 32.643 | 0.500 | 0.010 | 0.253 | 0.534 | 0.454 | 0.300 | 0.005 |
| 4005 | 63.550 | 34.411 | 0.233 | 0.045 | 0.500 | 0.653 | 0.300 | --- | 0.006 |
| 4006 | 60.221 | 37.902 | 0.244 | 0.150 | ---- | 0.700 | ---- | 0.222 | 0.009 |
| 4007 | 62.324 | 35.999 | 0.135 | 0.135 | 0.488 | ---- | 0.183 | 0.214 | ---- |
| 4008 | 64.049 | 34.511 | 0.100 | 0.052 | 0.325 | 0.454 | 0.143 | 0.063 | 0.001 |
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 5
In table 5-1, be the contrivance 5 of 8 kinds of different componentss making according to above-mentioned technique, numbering is respectively 5001-5008, each component unit be weight percentage (wt%).
Table 5-1
| Numbering | Copper (Cu) | Zinc (Zn) | Magnesium (Mg) | Antimony (Sb) | Manganese (Mn) | Aluminium (Al) | Tin (Sn) | Phosphorus (P) | Boron (B) |
| 5001 | 61.800 | 37.014 | 0.231 | 0.023 | 0.054 | 0.100 | 0.500 | 0.066 | 0.010 |
| 5002 | 62.472 | 36.526 | 0.207 | 0.010 | 0.108 | ---- | 0.325 | 0.052 | ---- |
| 5003 | 60.000 | 38.549 | 0.100 | 0.113 | 0.500 | ---- | 0.486 | 0.050 | ---- |
| 5004 | 62.731 | 36.021 | 0.137 | 0.141 | 0.192 | 0.118 | 0.050 | 0.194 | 0.005 |
| 5005 | 62.498 | 35.400 | 0.273 | 0.150 | ---- | 0.700 | 0.416 | ---- | 0.001 |
| 5006 | 64.032 | 34.578 | 0.186 | 0.013 | 0.067 | 0.328 | 0.377 | 0.104 | 0.004 |
| 5007 | 65.000 | 33.937 | 0.262 | 0.109 | 0.050 | --- | 0.337 | 0.103 | ---- |
| 5008 | 64.855 | 32.526 | 0.500 | 0.072 | 0.452 | 0.676 | ---- | 0.300 | 0.008 |
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 6
In table 6-1, be the contrivance 6 of 8 kinds of different componentss making according to above-mentioned technique, numbering is respectively 6001-6008, each component unit be weight percentage (wt%).
Table 6-1
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 7
In table 7-1, be the contrivance 7 of 8 kinds of different componentss making according to above-mentioned technique, numbering is respectively 7001-7008, each component unit be weight percentage (wt%).
Table 7-1
| Numbering | Copper (Cu) | Zinc (Zn) | Manganese (Mn) | Aluminium (Al) | Tin (Sn) | Phosphorus (P) |
| 7001 | 62.000 | 37.596 | 0.050 | 0.207 | 0.050 | 0.095 |
| 7002 | 63.431 | 35.903 | 0.223 | 0.332 | 0.109 | ---- |
| 7003 | 61.118 | 38.160 | 0.217 | 0.100 | 0.403 | ---- |
| 7004 | 60.000 | 39.525 | ---- | 0.157 | 0.233 | 0.083 |
| 7005 | 63.043 | 35.974 | 0.431 | ---- | 0.500 | 0.050 |
| 7006 | 65.000 | 33.620 | 0.500 | 0.541 | 0.337 | ---- |
| 7007 | 62.043 | 36.929 | 0.087 | 0.432 | 0.207 | 0.300 |
| 7008 | 64.754 | 33.867 | 0.093 | 0.700 | 0.331 | 0.253 |
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 8
In table 8-1, be the contrivance 8 of 8 kinds of different componentss making according to above-mentioned technique, numbering is respectively 8001-8008, each component unit be weight percentage (wt%).
Table 8-1
| Numbering | Copper (Cu) | Zinc (Zn) | Magnesium (Mg) | Antimony (Sb) | Manganese (Mn) | Aluminium (Al) | Tin (Sn) | Phosphorus (P) | Boron (B) |
| 8001 | 63.120 | 35.186 | 0.450 | 0.150 | 0.055 | 0.350 | 0.050 | 0.087 | --- |
| 8002 | 60.000 | 39.184 | 0.100 | ---- | 0.105 | 0.231 | 0.377 | ---- | 0.001 |
| 8003 | 61.157 | 37.521 | 0.243 | 0.050 | 0.374 | 0.100 | 0.094 | 0.050 | 0.009 |
| 8004 | 62.300 | 36.508 | ---- | 0.010 | ---- | 0.493 | 0.178 | 0.211 | 0.008 |
| 8005 | 62.138 | 35.691 | 0.500 | 0.130 | 0.109 | 0.700 | 0.203 | 0.300 | 0.007 |
| 8006 | 65.000 | 33.526 | 0.337 | ---- | 0.500 | 0.337 | 0.095 | 0.198 | 0.005 |
| 8007 | 63.433 | 34.703 | 0.295 | 0.075 | 0.089 | 0.205 | 0.500 | 0.188 | 0.010 |
| 8008 | 63.064 | 35.416 | 0.250 | 0.053 | 0.050 | ---- | 0.498 | 0.067 | ---- |
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 9
In table 9-1, be the contrivance 9 of 8 kinds of different componentss making according to above-mentioned technique, numbering is respectively 9001-9008, each component unit be weight percentage (wt%).
Table 9-1
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 10
In table 10-1, be the contrivance 10 of 8 kinds of different componentss making according to above-mentioned technique, numbering is respectively 10001-10008, each component unit be weight percentage (wt%).
Table 10-1
| Numbering | Copper (Cu) | Zinc (Zn) | Magnesium (Mg) | Antimony (Sb) | Manganese (Mn) | Aluminium (Al) | Tin (Sn) | Phosphorus (P) | Boron (B) |
| 10001 | 61.099 | 38.035 | 0.454 | 0.054 | 0.056 | ---- | ---- | ---- | ---- |
| 10002 | 62.413 | 36.677 | 0.500 | 0.010 | 0.050 | ---- | 0.050 | ---- | 0.008 |
| 10003 | 60.073 | 39.148 | 0.198 | 0.076 | ---- | 0.203 | ---- | ---- | ---- |
| 10004 | 60.000 | 38.183 | 0.231 | 0.075 | 0.432 | 0.100 | 0.310 | 0.067 | ---- |
| 10005 | 60.043 | 37.982 | 0.100 | 0.150 | 0.500 | 0.507 | 0.106 | 0.050 | 0.010 |
| 10006 | 63.661 | 34.510 | 0.307 | 0.100 | 0.108 | 0.700 | ---- | 0.203 | 0.009 |
| 10007 | 65.000 | 33.440 | 0.273 | 0.054 | 0.310 | 0.432 | 0.088 | ---- | 0.001 |
| 10008 | 64.398 | 33.251 | 0.203 | 0.073 | 0.298 | 0.670 | 0.500 | 0.300 | 0.005 |
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 11
In table 11-1, be the contrivance 11 of 8 kinds of different componentss making according to above-mentioned technique, numbering is respectively 11001-11008, each component unit be weight percentage (wt%).
Table 11-1
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:
From the above, after adding according to certain proportion via various different substancess, produce the machining property suitable with known Winn bronze through high frequency calciner again, and good tensile strength, unit elongation, anti dezincification character are good, easily cutting, and it is not leaded, be suitable as replace known Winn bronze alloy material and for the manufacture of product, the spare and accessory parts of for example water tap or bath articles.
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 (11)
- Unleaded without bismuth without the good brass alloys of silicon machinability, it is characterized in that, comprising: account for copper, the antimony of 0.01-0.15wt% and the magnesium of 0.1-0.5wt% of brass alloys gross weight 60-65wt%, remainder is zinc.
- As claimed in claim 1 unleaded without bismuth without the good brass alloys of silicon machinability, it is characterized in that, also comprise: account for the phosphorus of brass alloys gross weight 0.05-0.3wt% and/or the manganese of 0.05-0.5wt%.
- As claimed in claim 1 unleaded without bismuth without the good brass alloys of silicon machinability, it is characterized in that, also comprise: account for the manganese of brass alloys gross weight 0.05-0.5wt%, the aluminium of 0.1-0.7wt%, tin, the phosphorus of 0.05-0.3wt% and/or the boron of 0.001-0.01wt% of 0.05-0.5wt%.
- As claimed in claim 3 unleaded without bismuth without the good brass alloys of silicon machinability, it is characterized in that, wherein, the total content of described manganese, aluminium, tin, phosphorus and/or boron is no more than the 2wt% of this brass alloys gross weight.
- As claimed in claim 4 unleaded without bismuth without the good brass alloys of silicon machinability, it is characterized in that, wherein, the total content of described manganese, aluminium, tin, phosphorus and/or boron is no less than the 0.2wt% of this brass alloys gross weight.
- As claimed in claim 3 unleaded without bismuth without the good brass alloys of silicon machinability, it is characterized in that, also comprise inevitable impurity, comprising accounting for the nickel below brass alloys gross weight 0.25wt%, the chromium below 0.15wt% and/or the iron below 0.25wt%.
- One kind unleaded without bismuth without the good brass alloys of silicon machinability, it is characterized in that, comprise: account for the copper of brass alloys gross weight 60-65wt%, the tin of 0.05-0.5wt%, and the two or more elements that are selected from the aluminium, the phosphorus of 0.05-0.3wt% and the manganese of 0.05-0.5wt% that account for brass alloys gross weight 0.1-0.7wt%, remainder is zinc.
- As claimed in claim 7 unleaded without bismuth without the good brass alloys of silicon machinability, it is characterized in that, also comprise the antimony, the magnesium of 0.1-0.5wt% and/or the boron of 0.001-0.01wt% that account for brass alloys gross weight 0.01-0.15wt%.
- As claimed in claim 8 unleaded without bismuth without the good brass alloys of silicon machinability, it is characterized in that, also comprise inevitable impurity, comprising accounting for the nickel below brass alloys gross weight 0.25wt%, the chromium below 0.15wt% and/or the iron below 0.25wt%.
- One kind unleaded without bismuth without the good brass alloys of silicon machinability, it is characterized in that, comprise: the copper that accounts for brass alloys gross weight 60-65wt%, the antimony of 0.01-0.15wt% and the magnesium of 0.1-0.5wt%, and more than one are selected from the element of phosphorus, the manganese of 0.05-0.5wt% and the boron of 0.001-0.01wt% of tin, the 0.05-0.3wt% of the aluminium, the 0.05-0.5wt% that account for brass alloys gross weight 0.1-0.7wt%, remainder is zinc.
- 11. as claimed in claim 10 unleaded without bismuth without the good brass alloys of silicon machinability, it is characterized in that, also comprise inevitable impurity, comprising accounting for the nickel below brass alloys gross weight 0.25wt%, the chromium below 0.15wt% and/or the iron below 0.25wt%.
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| PCT/CN2014/074942 WO2015100873A1 (en) | 2014-01-03 | 2014-04-09 | Lead-free bismuth-free silicone-free brass |
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| CN105132739A (en) * | 2015-09-10 | 2015-12-09 | 孝感市元达新材料科技有限公司 | Lead-free brass alloy and preparing method of lead-free brass alloy |
| CN105624463A (en) * | 2015-12-29 | 2016-06-01 | 宁波会德丰铜业有限公司 | Lead-free free-cutting brass alloy and preparation method thereof |
| CN111235427A (en) * | 2020-01-15 | 2020-06-05 | 宁波博威合金材料股份有限公司 | Free-cutting brass alloy and preparation method and application thereof |
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