CN101469384A - Brass alloy material and preparation thereof - Google Patents
Brass alloy material and preparation thereof Download PDFInfo
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- CN101469384A CN101469384A CNA2007103078417A CN200710307841A CN101469384A CN 101469384 A CN101469384 A CN 101469384A CN A2007103078417 A CNA2007103078417 A CN A2007103078417A CN 200710307841 A CN200710307841 A CN 200710307841A CN 101469384 A CN101469384 A CN 101469384A
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Abstract
The invention discloses a brass alloy material, which consists of copper, bismuth, aluminum and zinc, wherein the total amount of the material is taken as the reference, the content of the copper is between 55 and 59.9 weight percent, the content of the bismuth is between 0.7 and 1.2 weight percent, the content of the aluminum is between 0.2 and 0.8 weight percent, and the content of the zinc is between 35 and 45 weight percent. The invention provides a method for preparing the brass alloy material. The brass alloy material has simple composition and high tensile strength, and other performances such as hardness, dezincification thickness and toughness are also satisfactory. For example, the tensile strength of the brass alloy material which is prepared by the embodiment 1 and consists of 59 weight percent of the copper, 39.5 weight percent of the zinc, 1 weight percent of the bismuth, and 0.5 weight percent of the aluminum is high up to 507MPa, the hardness is high up to 108HBS, the dezincification thickness is low to 238.97 microns, the elongation rate is high up to 40.5 percent, and the relative machinability is 100 percent.
Description
Technical field
The invention relates to a kind of alloy material, especially a kind of brass alloy material and preparation method thereof.
Background technology
The Winn bronze alloy material is acknowledged as important base mateiral owing to have good cutting performance.But, plumbous as a kind of harmful element, when environment is caused great pollution, human body is also caused various harm.So, develop new brass alloy material and replace the Winn bronze alloy material that significant meaning is arranged.
A kind of leadless free-cutting brass alloy material is disclosed among the CN 101003871A: copper: 55.0-70.0%, zinc: 30.0-45.0%, tin: 0.1-10%, nickel: 0.1-2.0%, silicon: 0-5.0%, bismuth: 0.1-5.0%, selenium: 0-3.0%, aluminium: 0.01-1.0%, phosphorus: 0.05-0.15%, rhenium: 0.01-0.5% etc. form.The metal species that this brass alloy material contains is too much, thereby complex manufacturing; And the easy oxidized and scaling loss of above-mentioned metallic element under smelting temperature, quality is wayward; In addition, the multiple metal that wherein contains is a rare metal, and the source is difficult for guaranteeing.
Disclose a kind of leadless free-cutting brass alloy material among the CN1461815A: copper: 60-62 weight %, bismuth: 0.5-2.2 weight %, aluminium: 0.01-0.1 weight %, all the other are zinc and unavoidable impurities.And further to have provided copper content in an embodiment be 60.21-61.91 weight %, and bi content is that 1.80-2.05 weight %, aluminium content are 0.01-0.07 weight %, and all the other are the brass alloys of zinc and unavoidable impurities.This brass alloys adopt the lead in the bismuth replacement Winn bronze alloy material, help to improve the cutting ability of brass alloys, but the mechanical property such as the tensile strength of above-mentioned alloy material are not ideal enough, are no more than 450 MPas, and because bi content is higher, the production cost of alloy material is higher.
Above-mentioned prior art scheme can avoid adding the bigger lead of contaminative in alloy, still, owing to use metallic element of a great variety, production technique is numerous and diverse, and quality product is wayward; Perhaps, cause production cost higher, and tensile strength is undesirable because bi content is higher.
Summary of the invention
The objective of the invention is to form complexity or the low shortcoming of tensile strength, a kind of form simple and the stronger brass alloy material of mechanical property are provided in order to overcome existing brass alloy material.
The invention provides a kind of brass alloy material, this alloy is made up of copper, bismuth, aluminum and zinc, wherein, total amount with described material is a benchmark, and the content of copper is that the content of 55-59.9 weight %, bismuth is that the content of 0.7-1.2 weight %, aluminium is that the content of 0.2-0.8 weight % and zinc is 35-45 weight %.
The invention provides a kind of preparation method of brass alloy material, this method comprises casting after copper, bismuth, the aluminum and zinc melting, obtain ingot casting, then the gained ingot casting is carried out hot extrusion, wherein, total amount with described copper, bismuth, aluminum and zinc is a benchmark, and the consumption of copper is that the consumption of 55-59.9 weight %, bismuth is that the consumption of 0.7-1.2 weight %, aluminium is that the consumption of 0.2-0.8 weight % and zinc is 35-45 weight %.
Brass alloy material provided by the invention is formed simple, tensile strength height, and other performance such as hardness, and dezincify thickness and toughness etc. are also satisfactory.For example, by the tensile strength of the brass alloy material of forming by 59 weight % copper, 39.5 weight % zinc, 1 weight % bismuth and 0.5 weight % aluminium of the embodiment of the invention 1 preparation up to 507 MPas, hardness is up to 108HBS, dezincify thickness is low to moderate 238.97 microns, unit elongation is up to 40.5%, and relative machinability is 100%.
The preparation method of brass alloy material provided by the invention is owing to use raw material type few, can stably obtain to have the brass alloy material of aspect character such as gratifying tensile strength, hardness, dezincify thickness, toughness, and, can further improve the toughness of brass alloy material by the recrystallization annealing of preferred implementation.
Description of drawings
Fig. 1 (a) is the as cast condition SEM photo of brass alloy material provided by the invention;
Fig. 1 (b) is the photoelectricity energy spectrogram and the corresponding data at A place among Fig. 1 (a);
Fig. 2 (a) is the extruding attitude metallographic structure figure of brass alloy material provided by the invention;
Fig. 2 (b) is the extruding attitude SEM photo of brass alloy material provided by the invention;
Fig. 3 (a) is the annealed state metallographic structure figure of brass alloy material provided by the invention;
Fig. 3 (b) is the annealed state SEM photo of brass alloy material provided by the invention;
Embodiment
According to brass alloy material provided by the invention, in order further to improve the character of brass alloy material at aspects such as tensile strength, hardness, toughness, dezincify thickness, under the preferable case, total amount with described material is a benchmark, and the content of copper is that the content of 58-59.9 weight %, bismuth is that the content of 0.9-1.1 weight %, aluminium is that the content of 0.4-0.6 weight % and zinc is 39-40 weight %.
Below the metallic element that adds in the brass alloy material of the present invention is described.
1. bismuth
The property of bismuth own is crisp, and its fusing point is than plumbous fusing point low (fusing point of bismuth is 271.4 ℃, and plumbous fusing point is 327.5 ℃), and hardness is low, and it is crisp and characteristics that hardness is low have been improved the machining condition of alloy, makes bismuth brass obtain good cutting ability.Adopt cutter material: Ys8 during cutting, 8 ° of relief angles, 50 ° of tool cutting edge angles, 15 ° of auxiliary angles, 3 ° of front clearances, cutting edge inclination-3 °; Processing mode is 1 millimeter of a size; The speed of mainshaft is 407 rev/mins, can cut into thin and short needle-like.Under the preferred situation, be benchmark with the total amount of described brass alloy material, the content of described bismuth is 0.9-1.1 weight %.
2. aluminium
The atomic radius of aluminium is 1.43 dusts, greater than the atomic radius of copper (atomic radius is 1.28 dusts) and zinc (atomic radius is 1.37 dusts).Aluminium dissolves in that the form with substitutional atom exists in the copper zinc alloy, after aluminium has been replaced the copper or zinc atom in the lattice, make the periodicity of crystalline inherent stress field in the part variation take place, certain distortion has taken place in the crystalline lattice, has so just caused that the crystal elasticity stress field changes.When alloy produced deformation by the motion dislocation under external force, elastic stress field and motion dislocation generation interaction had increased the resistance to deformation of alloy, have just improved the intensity of alloy in view of macroscopic view.Scanning electron microscope result shows that content is the aluminium that 0.2-0.8 weight % is preferably 0.4-0.6 weight %, refinement greatly the crystal grain of alloy material, the intensity of alloy material and the raising of hardness are very helpful.In addition, the adding of a certain amount of aluminium not only can change the form of separating out of bismuth, makes it to separate out with subsphaeroidal, helps machining but also can improve the anti dezincification character energy of alloy.And because the price of copper and bismuth, especially bismuth is all somewhat expensive, the adding of a certain amount of aluminium can reduce the cost of alloy.
3. copper
Generally speaking, copper content mostly is α mutually in the cast material of brass and the hot-work material when 60.5 weight % are above in alloy material, organizes the copper content must be more than 63.0 weight % in order to obtain single-phase α.Just, consider and to produce from the phase constitution beyond the α phase that from corrosion resisting property and mechanical properties, copper content must be more than 63.0 weight % as based on the Dezincification corrosion resistant performance.But the present inventor is surprised to find that, brass alloy material provided by the present invention is by selecting suitable element and suitable proportioning for use, even copper content 55-59.9 weight % is 58-59.9 weight % particularly, the effect of utilization and other elements still can obtain stable α phase constitution.Copper content increases on the other hand, though obtain the α phase easily, and can improve corrosion resisting property, also can in tensile strength and hardness reduction, hot workability be worsened on the contrary.In order to ensure good hot workability, it is necessary containing a large amount of β phases (more than 50%) in the hot processing temperature zone, wants alloy structure is become alpha+beta two-phase structure, and copper content must be lower than 55 weight %.
4. zinc
Zinc is used for the matrix of reinforced alloys material.Generally speaking, determine the content of other composition in the alloy material earlier, come the content of polishing 100 weight % again with zinc.According to the present invention, be benchmark with the total amount of described brass alloy material, described zinc content is generally 35-45 weight %, is preferably 39-40 weight %.The brass alloy material that in this scope, obtains, hot workability is good, and intensity is also high.
According to the preparation method of brass alloy material provided by the invention, described copper, zinc, aluminium and bismuth can be the conventional various raw materials that use in this area, and for example, described copper can be various electrolytic coppers.The addition sequence of described copper, zinc, aluminium and bismuth can be determined according to the fusing point of institute's added elements height and volatile, easy oxidation order and consumption, in the present invention, the addition sequence of described copper, zinc, aluminium and bismuth according to add electrolytic copper earlier, the zincification order that adds bismuth and aluminium is at last carried out subsequently, and copper, zinc, aluminium and bismuth melting are evenly promptly being carried out casting within back 2 minutes.
The method of described melting preferably includes described alloy raw material is smelted into uniform liquid form mixt, with this liquid form mixt casting, wherein melting equipment can be melting equipments such as vacuum arc melting furnace, vacuum induction melting furnace or vacuum resistance furnace then; Look different melting equipment and alloy raw material, the condition of described melting comprises that smelting temperature is 800-2700 ℃, is preferably 1000-2000 ℃; Smelting time is 0.5-5 minute.The time of described melting is that bismuth and aluminium finished to the timed interval of pouring into a mould from reinforced finishing.In order to prevent that various raw materials are oxidized in the fusion process, can in fusion process, add charcoal, the add-on of charcoal can be the 2-4 weight % of mixture total weight amount.In addition, for anti-oxidation, described melting can be carried out in shielding gas or vacuum environment, and described shielding gas is neutral element gas, N in the periodic table of elements
2And SF
6In one or more, the purity of described shielding gas is not less than volume 95%; The absolute pressure of described vacuum environment is no more than 1000 handkerchiefs.
The condition of described casting comprises that tapping temperature is 800-1500 ℃, and be 2-3 minute the duration of pouring.
Among the present invention, cooling that casting described herein relates to and hereinafter related refrigerative speed can be 10-10
4K/ second, be preferably 10-10
3K/ second.Described refrigerative mode can be one or more in water-cooled, air cooling, the cooled with liquid nitrogen, is preferably air cooling.
The size of described ingot casting can be selected as required, and the present invention is not particularly limited this.
According to the preparation method of brass alloy material provided by the invention, the condition of described hot extrusion comprises that temperature is 600-800 ℃, is preferably 680-740 ℃; Time is 1-3 hour, is preferably 1.5-2.5 hour; Extrusion ratio is 8-17, is preferably 10-15.The concrete operation method of described hot extrusion has been conventionally known to one of skill in the art, does not repeat them here.
According to the preparation method of brass alloy material provided by the invention, under the preferable case, this method comprises that also the product with hot extrusion molding carries out recrystallization annealing, with the toughness of further raising alloy material.The condition of described recrystallization annealing comprises that temperature is 550-650 ℃, and the time is 20-100 minute.For different brass alloy materials, according to thickness and size, the time of recrystallization annealing can be slightly different, for example, use brass alloy material for stretching, and the time of recrystallization annealing can be 40-100 minute, is preferably 40-60 minute; Detect for scanning electron microscope, energy spectrum analysis, Dezincification corrosion and hardness and use brass alloy material because generally less and thin, so the time of recrystallization annealing can be 30-40 minute.
Following examples will the present invention is further illustrated.
Embodiment 1
This embodiment is used to illustrate brass alloy material provided by the invention and preparation method thereof.
(1) melting and casting: purity is No. two electrolytic coppers 885 grams, zinc 592.5 grams, bismuth 15 grams, aluminium 7.5 grams and the charcoal of 99.99 weight % according to No. two electrolytic coppers of elder generation and charcoal, zinc then, the order of bismuth and aluminium joins in the vacuum arc melting furnace then, 1700 ℃ of following meltings, treat the abundant fusion of alloy, join fast in the casting mold that is preheating to 300 ℃ in advance after stirring, smelting time is 3 minutes, be 3 minutes the duration of pouring, tapping temperature is 1100 ℃, the air cooling demoulding obtains the ingot casting of 50 millimeters of Φ.The copper content that consists of of ingot casting is 59 weight %, and zinc content is 39.5 weight %, and bi content is that 1 weight % and aluminium content are 0.5 weight %.
(2) hot extrusion: the ingot casting that the Φ that above-mentioned (1) is obtained is 50 millimeters is earlier 450 ℃ of following preheatings 2 hours, and then 750 ℃ of heating 2 hours down, pushes on 315T oil pressure extrusion machine afterwards.Adopt graphite and machine oil with the weight ratio be the mixture of 1:10 as lubricant, the ingot casting of 50 millimeters of Φ is squeezed into the extruding rod of 14 millimeters of Φ the most at last, extrusion ratio is 12.76.
(3) recrystallization annealing: the extruding rod that above-mentioned (2) are obtained carries out recrystallization annealing in chamber type electric resistance furnace, the temperature of recrystallization annealing is 600 ℃, and the time is 40 minutes, obtains brass alloys sample S1 provided by the invention.
In above-mentioned each step process, adopt opticmicroscope (OM), scanning electron microscope (SEM), XRD diffractometer, drawing machine, hardness detecting instrument that small amount of sample is wherein analyzed, to understand the weave construction and the pattern of sample in each stage.
Wherein, the metallographic structure of finding sample in melting and the casting process is formed by uniform α is mutually alternate with β mutually.It is mutually perishable that β compares α.Because the plasticity of α phase is better, the strong hardness of β phase is bigger, so this alloy possesses higher strong hardness in the plasticity having preferably, mechanical property is relatively good.Fig. 1 (a) is 1000 times SEM photo under this state, and the white point among the figure is the bismuth particle, and disperse is distributed on the phase boundary.Because the fusing point of bismuth is low, property is crisp, in cutting the effect of lubricated cutter is arranged the time, so the bismuth granule of the distribution of tiny, disperse has improved the cutting ability of alloy greatly.Fig. 1 (b) be among Fig. 1 (a) A place can spectrogram and analytical data, it has illustrated that the small particles at A place is a bismuth simple substance particle, and alloy consist of α phase and β mutually.
Fig. 2 (a) is the metallographic structure of sample in the hot extrusion process.As seen from the figure, extruding back α distributes along machine direction with even, tiny strip with β mutually, organizes than tightr before the extruding, evenly, can improve the comprehensive mechanical property of alloy greatly.Fig. 2 (b) is 1000 times SEM photo under this state.Because what adopt is hot extrusion, incomplete recrystallize has taken place in alloy.Remelting has taken place but has not grown up fully in crystal grain, and the phase constitution that obtains is even, disperse.Bismuth granule still is distributed in phase boundary with the particle form disperse, has guaranteed good cutting ability.Simultaneously, the fine and closely woven alloy anti dezincification character energy that improved greatly of the refinement of crystal grain and tissue.
Fig. 3 (a) is vertical metallographic structure of sample after the recrystallization annealing, as seen from the figure, annealing back α mutually with β by strip become closely, disperse, uniform little bulk, subglobular, eliminate the unrelieved stress when pushing, when guaranteeing the good mechanical performance, improved the workability of alloy all directions.Fig. 3 (b) is 1000 times SEM photo under this state, α phase and β phase composite that this SEM photo explanation alloy organizing is still distributed by disperse, and the bismuth particle still is distributed on the phase boundary.Simultaneously, the unrelieved stress of many casting flaws and hot extrusion generation has been eliminated in recrystallization annealing, has improved the anti dezincification character energy of alloy greatly.
Comparative Examples 1
This Comparative Examples is used to illustrate brass alloy material of the prior art and preparation method thereof.
Prepare brass alloy material according to embodiment 1 described method, different is that the add-on of No. two electrolytic coppers, zinc, bismuth and aluminium is respectively 618.2 grams, 362.4 grams, 18.8 grams, 0.6 gram, obtains reference brass alloy material sample CS1.
Embodiment 2
This embodiment is used to illustrate brass alloy material provided by the invention and preparation method thereof.
Prepare brass alloy material according to embodiment 1 described method, different is that gained extruding rod obtains brass alloy material sample S2 provided by the invention without the recrystallization annealing step.
Embodiment 3
(1) melting and casting: purity is No. two electrolytic coppers 892.5 grams, zinc 585 grams, bismuth 13.5 grams, aluminium 9 grams and the charcoal of 99.99 weight % according to No. two electrolytic coppers of elder generation and charcoal, zinc then, the order of bismuth and aluminium joins in the vacuum arc melting furnace then, 1700 ℃ of following meltings, treat the abundant fusion of alloy, join fast in the casting mold that is preheating to 280 ℃ in advance after stirring, smelting time is 1 minute, be 3 minutes the duration of pouring, tapping temperature is 1400 ℃, the air cooling demoulding obtains the ingot casting of 50 millimeters of Φ.The copper content that consists of of ingot casting is 59.5 weight %, and zinc content is 39 weight %, and bi content is that 0.9 weight % and aluminium content are 0.6 weight %.Speed of cooling is 1000K/ second.
(2) hot extrusion: the ingot casting that the Φ that above-mentioned (1) is obtained is 50 millimeters is earlier 450 ℃ of following preheatings 2 hours, and then 680 ℃ of heating 2.5 hours down, pushes on 315T oil pressure extrusion machine afterwards.The mixture weight that adopts graphite and machine oil than for 1:10 as lubricant, the ingot casting of 50 millimeters of Φ is squeezed into the extruding rod of 15 millimeters of Φ the most at last, extrusion ratio is 11.11.
(3) recrystallization annealing: the extruding rod that above-mentioned (2) are obtained carries out recrystallization annealing in chamber type electric resistance furnace, the temperature of recrystallization annealing is 650 ℃, and the time is 20 minutes, obtains brass alloys sample S3 provided by the invention.
Embodiment 4
(1) melting and casting: purity is No. two electrolytic coppers 877.5 grams, zinc 600 grams, bismuth 16.5 grams, aluminium 6 grams and the charcoal of 99.99 weight % according to No. two electrolytic coppers of elder generation and charcoal, zinc then, the order of bismuth and aluminium joins in the vacuum arc melting furnace then, 1700 ℃ of following melt backs 2 times, the time of each melting is 0.5 minute, treat the abundant fusion of alloy, join in the casting mold that is preheating to 200-300 ℃ in advance after stirring, be 2-3 minute the duration of pouring, tapping temperature is 900 ℃, the air cooling demoulding obtains the ingot casting of 50 millimeters of Φ.The copper content that consists of of ingot casting is 58.5 weight %, and zinc content is 40 weight %, and bi content is that 1.1 weight % and aluminium content are 0.4 weight %.Speed of cooling is 100K/ second.
(2) hot extrusion: the ingot casting that the Φ that above-mentioned (1) is obtained is 50 millimeters is earlier 450 ℃ of following preheatings 2 hours, and then 750 ℃ of heating 1.5 hours down, pushes on 315T oil pressure extrusion machine afterwards.Adopt graphite+machine oil as lubricant, the ingot casting of 50 millimeters of Φ is squeezed into the extruding rod of 13 millimeters of Φ the most at last, and extrusion ratio is 14.79.
(3) recrystallization annealing: the extruding rod that above-mentioned (2) are obtained carries out recrystallization annealing in chamber type electric resistance furnace, the temperature of recrystallization annealing is 550 ℃, and the time is 100 minutes, obtains brass alloys sample S4 provided by the invention.
Embodiment 5-8
Following examples are used to illustrate the performance of brass alloy material provided by the invention.
According to the performance of following method test by the brass alloy material of embodiment 1-4 preparation, the result is as shown in table 1 respectively.
1, dezincify thickness: measure according to the GB10119-88 method.
2, stretching experiment: measure according to the GB228-87 method.
3, hardness detects: measure according to the GB/T2304 method.
4, cutting test:
The alignment sample of 14 millimeters of Φ is processed on the horizontal engine lathe of CW6136; Cutter material: Ys8,8 ° of relief angles, 50 ° of tool cutting edge angles, 15 ° of auxiliary angles, 3 ° of front clearances, cutting edge inclination-3 °; Processing mode is 1 millimeter of a size; The speed of mainshaft is 407 rev/mins.Collect the sample after the 100 gram smear metals, analyze wherein that length is no more than 3 millimeters, width is no more than the weight of 1 millimeter sample, and this weight and 100 per-cents that restrain are the relative machinability of sample.
Comparative Examples 2
This Comparative Examples is used to illustrate the performance of the brass alloy material of prior art.
According to the performance of the described method test of the foregoing description 5-8 by the reference brass alloy material of Comparative Examples 1 preparation, the result is as shown in table 1.
Table 1
| The embodiment numbering | Embodiment 5 | Comparative Examples 2 | Embodiment 6 | Embodiment 7 | Embodiment 8 |
| Sample number into spectrum | S1 | CS1 | S2 | S3 | S4 |
| Unit elongation δ (%) | 40.5 | 32.5 | 37 | 38 | 39 |
| Tensile strength sigma b(MPa) | 507 | 450 | 476 | 463 | 460 |
| Hardness (HBS) | 108.00 | 62.29 | 109.26 | 90.60 | 94.60 |
| Dezincify thickness (micron) | 238.97 | 361.89 | 240.43 | 244.86 | 241.82 |
| Relative machinability (%) | 100 | 80 | 90 | 90 | 95 |
From the foregoing description and Comparative Examples more as can be seen, the brass alloy material that the present invention obtains has good tensile strength, unit elongation, hardness, anti dezincification character energy and relative cutting, and since the bismuth-containing amount low, cost is relatively low.
Claims (9)
1, a kind of brass alloy material, this alloy is made up of copper, bismuth, aluminum and zinc, it is characterized in that, be benchmark with the total amount of described material, and the content of copper is that the content of 55-59.9 weight %, bismuth is that the content of 0.7-1.2 weight %, aluminium is that the content of 0.2-0.8 weight % and zinc is 35-45 weight %.
2, material according to claim 1 wherein, is a benchmark with the total amount of described material, and the content of copper is that the content of 58-59.9 weight %, bismuth is that the content of 0.9-1.1 weight %, aluminium is that the content of 0.4-0.6 weight % and zinc is 39-40 weight %.
3, the preparation method of the described brass alloy material of claim 1, this method comprises casting after copper, bismuth, the aluminum and zinc melting, obtain ingot casting, then the gained ingot casting is carried out hot extrusion, it is characterized in that, total consumption with described copper, bismuth, aluminum and zinc is a benchmark, and the consumption of copper is that the consumption of 55-59.9 weight %, bismuth is that the consumption of 0.7-1.2 weight %, aluminium is that the consumption of 0.2-0.8 weight % and zinc is 35-45 weight %.
4, method according to claim 3, wherein, total consumption with described copper, bismuth, aluminum and zinc is a benchmark, and the consumption of copper is that the consumption of 58-59.9 weight %, bismuth is that the consumption that contains of 0.9-1.1 weight %, aluminium is that the consumption of 0.4-0.6 weight % and zinc is 39-40 weight %.
5, method according to claim 3, wherein, the condition of described melting comprises that smelting temperature is 800-2700 ℃, smelting time is 0.5-5 minute; The tapping temperature of described casting is 800-1500 ℃, and the speed of cooling of described casting is 10-10
4K/ second.
6, method according to claim 3, wherein, the condition of described hot extrusion comprises that temperature is 600-800 ℃, and the time is 1-3 hour, and extrusion ratio is 8-17.
7, method according to claim 6, wherein, the condition of described hot extrusion comprises that temperature is 680-750 ℃, and the time is 1.5-2.5 hour, and extrusion ratio is 10-15.
8, method according to claim 3, wherein, this method comprises that also the product with hot extrusion molding carries out recrystallization annealing.
9, method according to claim 8, wherein, the condition of described recrystallization annealing comprises that temperature is 550-650 ℃, the time is 20-100 minute.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205599A (en) * | 2013-04-15 | 2013-07-17 | 广东朝阳卫浴有限公司 | Environmental-protection compact brass alloy material with high plasticity and preparation method thereof |
| CN106636732A (en) * | 2016-12-12 | 2017-05-10 | 余姚市庆达机械有限公司 | High-plasticity brass alloy material and preparation method thereof |
| CN110282975A (en) * | 2019-07-08 | 2019-09-27 | 先导薄膜材料（广东）有限公司 | A kind of Germanium selenide target and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ250348A (en) * | 1992-12-04 | 1994-06-27 | Ideal Standard | Brass alloy composition |
| US5360591A (en) * | 1993-05-17 | 1994-11-01 | Kohler Co. | Reduced lead bismuth yellow brass |
| JP3761741B2 (en) * | 1999-05-07 | 2006-03-29 | 株式会社キッツ | Brass and this brass product |
| CN1461815A (en) * | 2002-05-29 | 2003-12-17 | 三越金属株式会社 | Leadless easy cutted brass ally material and its manufacturing method |
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2007
- 2007-12-28 CN CN2007103078417A patent/CN101469384B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205599A (en) * | 2013-04-15 | 2013-07-17 | 广东朝阳卫浴有限公司 | Environmental-protection compact brass alloy material with high plasticity and preparation method thereof |
| CN103205599B (en) * | 2013-04-15 | 2015-07-08 | 广东朝阳卫浴有限公司 | Environmental-protection compact brass alloy material with high plasticity and preparation method thereof |
| CN106636732A (en) * | 2016-12-12 | 2017-05-10 | 余姚市庆达机械有限公司 | High-plasticity brass alloy material and preparation method thereof |
| CN110282975A (en) * | 2019-07-08 | 2019-09-27 | 先导薄膜材料（广东）有限公司 | A kind of Germanium selenide target and preparation method thereof |
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| Publication number | Publication date |
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| CN101469384B (en) | 2011-11-16 |
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