CN102618750B - Tin brass alloy and manufacturing method thereof - Google Patents
Tin brass alloy and manufacturing method thereof Download PDFInfo
- Publication number
- CN102618750B CN102618750B CN 201210109672 CN201210109672A CN102618750B CN 102618750 B CN102618750 B CN 102618750B CN 201210109672 CN201210109672 CN 201210109672 CN 201210109672 A CN201210109672 A CN 201210109672A CN 102618750 B CN102618750 B CN 102618750B
- Authority
- CN
- China
- Prior art keywords
- copper
- add
- alloy
- copper liquid
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a tin brass alloy and a manufacturing method thereof. The tin brass comprises elements of , by mass, 69.0 to 71.0 percents of Cu, 0.8 to 1.3 percents of Sn, 0.02 to 0.06 percent of As, 0.01 to 0.08 percent of Ti, 0.01 to 0.08 percent of Zr, 0.005 to 0.08 percent of B, 0.02 to 0.06 percent of Sb, 0.05 to 1.2 percents of Ni, 0.05 to 0.70 percent of Mn, 0.05 to 0.10 percent of Fe, 0.15 to 0.6 percent of Al, 0.03 to 0.08 percent of P, 0.05 to 0.40 percent of rare earths, no more than 0.05 percent of impurities, and the balance Zn. The corrosion resistance and abrasion resistance of the alloy are greatly enhanced, usage requirements of different water qualities and different flow conditions in different areas of the north and south, coast and inland in China can be better met, the extremely durable temperature is increased, and requirements of usage of large supercritical sets in bad working environment and long service life are met.
Description
Technical field
The present invention relates to the processing of copper and copper alloy, belong to metallic material alloyization, material antiseptic and alloy melting technical field, relate in particular to a kind of corrosion-resistant, anti scuffing, long-life tin-brass alloy and melting method thereof.
Background technology
The HSn70-1 one-ton brass is commonly used for the making condenser, is widely used as condenser and the assembly of seagoing vessel, power station, beach, thermal power plant, and solidity to corrosion is the extremely important use properties of this alloy.The nominal zinc content of this alloy is about 29%, and zinc content is greater than 15% brass, easily under the influence of factor such as dezincify, can occur obvious stress corrosion failure tendency at unrelieved stress, the medium that causes the zinc selective dissolution and alloy itself.Zinc content is more high, unrelieved stress is more big, and corrosion tendency is more big, and dezincification of brass, stress corrosion and impingement corrosion are the roots of alloy corrosion, inefficacy.In the dezincify process, zinc is optionally removed and is stayed porous, easy crisp copper layer, zone of oxidation, and normal brass base by porous, easily crisp copper matrix replacement, finally causes tubing run-down gradually.The prolong alloy HSn70-1 of widespread use at present, its work-ing life is about 7-10, only be six to 1/7th of stainless steel tube work-ing life, can not satisfy the requirement in work-ing life of power station condenser far away, directly cause thermal power station's condenser to be substituted by stainless steel tube.
The HSn70-1 alloy reaches the purpose that suppresses dezincification of brass by adding As, because As only can suppress single-phase alpha brass dezincify, and the nominal zinc content of HSn70-1 alloy is about 29%, and the zinc equivalent of tin is 2, the trend that forms the β phase is big, and the actual zinc equivalent of this alloy is about 31%.Under non-equilibrium crystallization condition, (alpha+beta) phase region can appear in this alloy, and the existence of As does not play restraining effect to the dezincify process of (alpha+beta) phase region.
China is vast in territory, and south is different with northern, coastal with landlocked condition of water quality, some areas such as northeast and North China, and the higher area of dissolved solid, suspended substance, saltiness and chloride ion content in the water body only has 5-8 the work-ing life of prolong sometimes.The water quality of different regions contains Cl
﹣, NH
4 ﹢, S0
4 2 –And the amount difference that contains suspended solids such as silt particle, anti-corrosion, the anti-erosion performance of one-ton brass prolong proposed different requirements, could satisfy long-life service requirements.
Existing HSn70-1 alloy only is suitable for using under the condition of fresh water, static seawater, when the abominable or water impact of condition of water quality is big, tends to occur phenomenon such as tubing leakage rate height, work-ing life be low, has a strong impact on the development of China's electric utility.In recent years, along with continuous advancement in technology, generating set develops to maximization, supercritical unit direction, and working temperature is higher, flow velocity is bigger, and condition of water quality is more abominable, and is more and more higher to the performance requriements of prolong alloy.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists at above-mentioned prior art, and a kind of corrosion-resistant, anti scuffing, long lifetime tin-brass alloy and preparation method thereof are provided.
Above-mentioned purpose realizes by following proposal:
A kind of tin-brass alloy, it is characterized in that, the mass percent of described one-ton brass containing element is Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.02-0.06%, Ti 0.01-0.08%, Zr 0.01-0.08%, B 0.005-0.08%, Sb 0.02-0.06, Ni 0.05-1.2%, Mn 0.05-0.70%, Fe 0.05-0.10%, Al 0.15-0.60%, P 0.03-0.08%, rare earth 0.05-0.40%, total impurities is not more than 0.05%, and surplus is zinc.
According to above-mentioned tin-brass alloy, it is characterized in that, wherein Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.03-0.06%, Ti0.03-0.06%, Zr0.02-0.05%, B0.01-0.05%, Sb 0.03-0.06%, Ni 0.5-0.9%, Al 0.35-0.50%, rare earth 0.10-0.30%, total impurities is not more than 0.05%, and surplus is zinc.
According to above-mentioned tin-brass alloy, it is characterized in that, wherein Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.03-0.06%, Ti 0.03-0.055%, Zr 0.02-0.05%, B 0.008-0.05%, Sb 0.03-0.05, Al 0.15-0.50%, Ni 0.20-0.60%, Mn 0.20-0.60%, rare earth 0.05-0.15%, total impurities is not more than 0.05%, and surplus is zinc.
According to above-mentioned tin-brass alloy, it is characterized in that, wherein Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.03-0.06%, Ti 0.03-0.06%, Zr 0.02-0.05%, B 0.05-0.08%, Sb 0.03-0.06, Ni 0.50-0.80%, Mn 0.30-0.50%, Fe 0.05-0.10%, Al 0.25-0.50%, rare earth 0.05-0.30%, total impurities is not more than 0.05%, and surplus is zinc.
A kind of method for preparing above-mentioned alloy is characterized in that, said method comprising the steps of:
⑴ add 59% copper, old material, covers charcoal, and the charcoal add-on is as the criterion can cover metal charge, and heating up makes its whole fusings;
⑵ add 0.05-0.10% iron, 0.20-0.90% nickel in the copper liquid, and stir with copper instrument, and it is fully dissolved;
⑶ add zinc and make its fusing under 1180-1190 ℃ of temperature condition, add copper-Xi master alloy subsequently, and making the Sn content in the alloy is 0.80-1.30%, and it is fully dissolved; Smelting temperature 1130-1160 ℃;
⑷ add easy scaling loss elemental copper-aluminium, copper-manganese master alloy in copper liquid, add 10% copper simultaneously, make aluminium, manganese content in the alloy be respectively 0.15-0.60%, 0.05-0.70%, treat that copper-aluminium, copper-manganese master alloy melt fully after, copper liquid temperature is adjusted between 1130-1160 ℃;
⑸ change copper liquid over to foundry furnace, and copper liquid temperature is adjusted between 1120-1160 ℃;
⑹ add copper-antimony successively in the copper liquid, copper-arsenic fully dissolves it, makes antimony, arsenic content in the alloy be respectively 0.02-0.06%, 0.02-0.06%; Add copper-boron, copper-titanium, copper-zirconium master alloy subsequently, it is fully dissolved, make boron, titanium, zirconium content in the alloy be respectively 0.005-0.08%, 0.01-0.08%, 0.01-0.08%;
⑺ add copper-lightweight rare earth intermediate alloy in copper liquid, it is fully dissolved, making the content of rare earth in the alloy is 0.05-0.40%, subsequently, alloying constituent is carried out total analysis, carry out necessary alloying element feed supplement or add copper watering down, make it meet the composition requirement of claims regulation, the satisfactory copper liquid temperature of composition is adjusted between 1150-1160 ℃;
⑻ to containing the tin-brass alloy of aluminium, as carrier gas, is blown into the sodium aluminum fluoride of 0.02-0.05% with high pure nitrogen or argon gas in the copper liquid; The gas duration of blast is 3-5 minute, after converting process finishes, and the charcoal that parches at copper liquid surface coverage one deck immediately; After treating that copper liquid leaves standstill 5-8 minute, can begin to drag for slag, casting.
Beneficial effect of the present invention: a kind of corrosion-resistant, the anti scuffing that the present invention relates to, long-life tin-brass alloy, phase region characteristics according to alloy substrate, adopt multicomponent trace element combined microalloying and pureization of alloy substrate means, solved traditional tin-brass alloy dezincify, run-down and problem that work-ing life is low.Corrosion resistant, the wear-corrosion resistance of alloy strengthen greatly, can satisfy the service requirements of China's the South and the North, coastal and landlocked different areas, different quality, different current stream condition condition preferably, extremely durable temperature improves, and satisfies large and super-critical unit bad working environments and uses and the long lifetime requirement.
Embodiment
The mass percent of copper-nickel alloy alloy containing element of the present invention is: Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.02-0.06%, Ti 0.01-0.08%, Zr 0.01-0.08%, B 0.005-0.08%, Sb 0.02-0.06, Ni 0.05-1.2%, Mn 0.05-0.70%, Fe 0.05-0.10%, Al 0.15-0.60%, P 0.03-0.08%, rare earth 0.05-0.40%, total impurities is not more than 0.05%, and surplus is zinc.
Perhaps, Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.03-0.06%, Ti0.03-0.06%, Zr0.02-0.05%, B0.01-0.05%, Sb 0.03-0.06%, Ni 0.5-0.9%, Al 0.35-0.50%, rare earth 0.10-0.30%, total impurities is not more than 0.05%, and surplus is zinc.
Perhaps, Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.03-0.06%, Ti 0.03-0.055%, Zr 0.02-0.05%, B 0.008-0.05%, Sb 0.03-0.05, Al 0.15-0.50%, Ni 0.20-0.60%, Mn 0.20-0.60%, rare earth 0.05-0.15%, total impurities is not more than 0.05%, and surplus is zinc.
Perhaps, Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.03-0.06%, Ti 0.03-0.055%, Zr 0.02-0.05%, B 0.008-0.05%, Sb 0.03-0.05, Al 0.15-0.50%, Ni 0.20-0.60%, Mn 0.20-0.60%, rare earth 0.05-0.15%, total impurities is not more than 0.05%, and surplus is zinc.
Perhaps, Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.03-0.06%, Ti 0.03-0.06%, Zr 0.02-0.05%, B 0.05-0.08%, Sb 0.03-0.06, Ni 0.50-0.80%, Mn 0.30-0.50%, Fe 0.05-0.10%, Al 0.25-0.50%, rare earth 0.05-0.30%, total impurities is not more than 0.05%, and surplus is zinc.
The preparation process of alloy:
⑴ add 59% copper, old material, and the charcoal add-on is as the criterion can cover metal charge, heats up to make its whole fusings;
⑵ add 0.05-0.10% iron, 0.20-0.90% nickel in the copper liquid, and stir with copper instrument, and it is fully dissolved;
⑶ add zinc and make its fusing under 1180-1190 ℃ of temperature condition, add copper-Xi master alloy subsequently, and making the Sn content in the alloy is 0.80-1.30%, and it is fully dissolved; Smelting temperature 1130-1160 ℃;
⑷ add easy scaling loss elemental copper-aluminium, copper-manganese master alloy in copper liquid, add 10% copper simultaneously, make aluminium, manganese content in the alloy be respectively 0.15-0.60%, 0.05-0.70%, treat that copper-aluminium, copper-manganese master alloy melt fully after, copper liquid temperature is adjusted between 1130-1160 ℃;
⑸ change copper liquid over to foundry furnace, and copper liquid temperature is adjusted between 1120-1160 ℃;
⑹ add copper-antimony successively in the copper liquid, copper-arsenic fully dissolves it, makes antimony, arsenic content in the alloy be respectively 0.02-0.06%, 0.02-0.06%; Add copper-boron, copper-titanium, copper-zirconium master alloy subsequently, it is fully dissolved, make boron, titanium, zirconium content in the alloy be respectively 0.005-0.08%, 0.01-0.08%, 0.01-0.08%;
⑺ add copper-lightweight rare earth intermediate alloy in copper liquid, it is fully dissolved, making the content of rare earth in the alloy is 0.05-0.40%, subsequently, alloying constituent is carried out total analysis, carry out necessary alloying element feed supplement or add copper watering down, make it meet the composition requirement of claims regulation, the satisfactory copper liquid temperature of composition is adjusted between 1150-1160 ℃;
⑻ to containing the tin-brass alloy of aluminium, as carrier gas, is blown into the sodium aluminum fluoride of 0.02-0.05% with high pure nitrogen or argon gas in the copper liquid; The gas duration of blast is 3-5 minute, after converting process finishes, and the charcoal that parches at copper liquid surface coverage one deck immediately; After treating that copper liquid leaves standstill 5-8 minute, can begin to drag for slag, casting.
The fusing point of nickel and iron all is higher than copper, and add-on is very little.After treating that the whole fusings of copper material and temperature are suitable, add nickel and iron again, it is dissolved in the copper liquid.
Adopt the principle of low temperature zincification, reduce scaling loss and the volatilization of zinc element.After adding zinc, treat that zinc all after the fusing, adds copper-Xi master alloy again.
After treating that zinc, copper-Xi master alloy all melt, add easy scaling loss elemental copper-aluminium, copper-manganese, copper-arsenic, copper-antimony master alloy again.Elder generation's zincification adds the purpose of copper-Xi, copper-aluminium, copper-manganese, copper-arsenic, copper-antimony master alloy again, is to utilize zinc to remove oxygen in the copper liquid earlier, reduces the scaling loss of easy scaling loss element aluminum, manganese, arsenic, prevents from occurring in the alloy SnO of indissoluble
2Particle.
In copper liquid, add copper-boron, copper-titanium, copper-zirconium master alloy, treat to add copper-rare earth intermediate alloy again after master alloy melts fully.
Boron, titanium, zirconium, rare earth element all have certain modification effect, particularly titanium, zr element, add in the copper liquid as alterant.After these elements add copper liquid and fusing, must guard against copper liquid overtemperature and leave standstill overtime.Copper liquid overtemperature and leave standstill overtime all can causing and decompose as the metallic compound elementide of crystal seed, thus metamorphism lost.Should not surpass the melting technology temperature through the copper liquid temperature after rotten the processing; Being melted to the time of repose that copper liquid begins to come out of the stove between the casting fully from the alterant master alloy should not be above one hour.
⒀ will prevent the image that exceeds standard that the trace alloying element in the foundry furnace causes because of accumulative effect when carrying out founding and work continuously, increase and decrease the add-on of the trace element of next heat as one feels fit according to the chemical ingredients of furnace burdening.
Embodiment 1
Be that 59% Cu puts into the main frequency furnace melting with mass percent, treat copper begin softening after, at copper surface coverage one deck charcoal.The consumption of charcoal is copper 15-25kg per ton.Smelting temperature is 1180-1200 ℃.Add the Ni of mass percent 1.0% in the copper liquid of fusing, metallic nickel is dissolved in the copper liquid by alloying.After treating Ni fusing, add mass percent in the copper liquid and be 0.8% Al and 10% Cu; Utilize the solution heat fusing cold burden copper of aluminium, reach the purpose that cuts down the consumption of energy with metal loss.After Al to be added and the Cu fusing, add the Zn of mass percent 27 % in the copper liquid, smelting temperature is 1160-1180 ℃; Adopt to add zincification behind the aluminium earlier, can utilize aluminium deoxidation and form alumina protective layer on copper liquid surface, reduce the air-breathing and zinc subsequently of copper liquid and lose.After treating the Metal Zn fusing, add Sn or Cu-Sn master alloy in copper liquid, the mass percent that makes Sn in the finished product alloy is 1.0%; Add Mn in copper liquid, the mass percent that makes Mn in the finished product alloy is 0.70%; Add the Cu-Ti master alloy in copper liquid, the mass percent that makes Ti in the finished product alloy is 0.05%; Add Fe in copper liquid, the mass percent that makes Fe in the finished product alloy is 0.09%; Add Cu-P in copper liquid, the mass percent that makes P in the finished product alloy is 0.06%; Add Sb in copper liquid, the mass percent that makes Sb in the finished product alloy is 0.05%; Add the Cu-Zr master alloy in copper liquid, the mass percent that makes Zr in the finished product alloy is 0.04%; Add the Cu-B master alloy in copper liquid, the mass percent that makes B in the finished product alloy is 0.04%; Add the Cu-As master alloy in copper liquid, the mass percent that makes As in the finished product alloy is 0.05%.Add lanthanum, cerium mischmetal or lanthanum, cerium mischmetal oxide compound in copper liquid, making the mass percent of lanthanum in the finished product alloy or cerium is 0.3%;
After the master alloy to be added fusing, copper liquid temperature is adjusted between 1160-1180 ℃, as carrier gas, be blown into the sodium aluminum fluoride refining agent of 0.1%-0.2% with high pure nitrogen or argon gas in the copper liquid, remove the alumina inclusion in the copper liquid.When being blown into, note not staying dead angle and blind area.The gas duration of blast is 3-5 minute.
Sampling analysis, treat that the alloying constituent conformance with standard requires after, copper liquid is warming up to 1160-1180 ℃, subsequently, come out of the stove.
Prepared in this way copper alloy composition is (mass percent): 0.96% Ni, 0.050% Ti, 0.55% Al, 25.8% Zn, 0.96% Sn, 0.66% Mn, 0.08% Fe, 0.063% P, 0.049% Sb, 0.041% Zr, 0.035% B, 0.044% As, total amount of rare earth 0.28%(contain lanthanum and cerium), surplus is copper.
Embodiment 2
Be that 59% Cu puts into the main frequency furnace melting with mass percent, treat copper begin softening after, at copper surface coverage one deck charcoal.The consumption of charcoal is copper 15-25kg per ton.Smelting temperature is 1180-1200 ℃.Add the Ni of mass percent 0.8% in the copper liquid of fusing, metallic nickel is dissolved in the copper liquid by alloying.After treating Ni fusing, add mass percent in the copper liquid and be 0.6% Al and 10% Cu; Utilize the solution heat fusing cold burden copper of aluminium, reach the purpose that cuts down the consumption of energy with metal loss.After Al to be added and the Cu fusing, add the Zn of mass percent 27.5 % in the copper liquid, smelting temperature is 1160-1180 ℃; Adopt to add zincification behind the aluminium earlier, can utilize aluminium deoxidation and form alumina protective layer on copper liquid surface, reduce the air-breathing and zinc subsequently of copper liquid and lose.After treating the Metal Zn fusing, add Sn or Cu-Sn master alloy in copper liquid, the mass percent that makes Sn in the finished product alloy is 1.0%; Add the Cu-Ti master alloy in copper liquid, the mass percent that makes Ti in the finished product alloy is 0.05%; Add Sb in copper liquid, the mass percent that makes Sb in the finished product alloy is 0.05%; Add the Cu-Zr master alloy in copper liquid, the mass percent that makes Zr in the finished product alloy is 0.04%; Add the Cu-B master alloy in copper liquid, the mass percent that makes B in the finished product alloy is 0.04%; Add the Cu-As master alloy in copper liquid, the mass percent that makes As in the finished product alloy is 0.05%.Add lanthanum, cerium mischmetal or lanthanum, cerium mischmetal oxide compound in copper liquid, making the mass percent of lanthanum in the finished product alloy or cerium is 0.2%;
After the master alloy to be added fusing, copper liquid temperature is adjusted between 1160-1180 ℃, as carrier gas, be blown into the sodium aluminum fluoride refining agent of 0.1%-0.2% with high pure nitrogen or argon gas in the copper liquid, remove the alumina inclusion in the copper liquid.When being blown into, note not staying dead angle and blind area.The gas duration of blast is 3-5 minute.
Sampling analysis, treat that the alloying constituent conformance with standard requires after, copper liquid is warming up to 1160-1180 ℃, subsequently, come out of the stove.
Prepared in this way copper alloy composition is (mass percent): 0.76% Ni, 0.052% Ti, 0.36% Al, 26.3% Zn, 0.93% Sn, 0.053% Sb, 0.043% Zr, 0.032% B, 0.047% As, total amount of rare earth 0.18%(contain lanthanum and cerium), surplus is copper.
Embodiment 3
Be that 59% Cu puts into the main frequency furnace melting with mass percent, treat copper begin softening after, at copper surface coverage one deck charcoal.The consumption of charcoal is copper 15-25kg per ton.Smelting temperature is 1180-1200 ℃.Add the Ni of mass percent 0.6% in the copper liquid of fusing, metallic nickel is dissolved in the copper liquid by alloying.After treating Ni fusing, add mass percent in the copper liquid and be 0.7% Al and 10% Cu; After Al to be added and the Cu fusing, add the Zn of mass percent 27.5 % in the copper liquid, smelting temperature is 1160-1180 ℃; After treating the Metal Zn fusing, add Sn or Cu-Sn master alloy in copper liquid, the mass percent that makes Sn in the finished product alloy is 1.0%; Add Mn or Mu-Sn master alloy in copper liquid, the mass percent that makes Mn in the finished product alloy is 0.5%; Add the Cu-Ti master alloy in copper liquid, the mass percent that makes Ti in the finished product alloy is 0.05%; Add Sb in copper liquid, the mass percent that makes Sb in the finished product alloy is 0.05%; Add the Cu-Zr master alloy in copper liquid, the mass percent that makes Zr in the finished product alloy is 0.04%; Add the Cu-B master alloy in copper liquid, the mass percent that makes B in the finished product alloy is 0.04%; Add the Cu-As master alloy in copper liquid, the mass percent that makes As in the finished product alloy is 0.05%.Add lanthanum, cerium mischmetal or lanthanum, cerium mischmetal oxide compound in copper liquid, making the mass percent of lanthanum in the finished product alloy or cerium is 0.15%;
After the master alloy to be added fusing, copper liquid temperature is adjusted between 1160-1180 ℃, as carrier gas, be blown into the sodium aluminum fluoride refining agent of 0.1%-0.2% with high pure nitrogen or argon gas in the copper liquid, remove the alumina inclusion in the copper liquid.When being blown into, note not staying dead angle and blind area.The gas duration of blast is 3-5 minute.
Sampling analysis, treat that the alloying constituent conformance with standard requires after, copper liquid is warming up to 1160-1180 ℃, subsequently, come out of the stove.
Prepared in this way copper alloy composition is (mass percent): 0.56% Ni, 0.048% Ti, 0.43% Al, 26.0% Zn, 0.95% Sn, 0.43% Mn, 0.047% Sb, 0.033% Zr, 0.033% B, 0.044% As, total amount of rare earth 0.14%(contain lanthanum and cerium), surplus is copper.
Embodiment 4
Be that 59% Cu puts into the main frequency furnace melting with mass percent, treat copper begin softening after, at copper surface coverage one deck charcoal.The consumption of charcoal is copper 15-25kg per ton.Smelting temperature is 1180-1200 ℃.Add the Ni of mass percent 0.8% in the copper liquid of fusing, metallic nickel is dissolved in the copper liquid by alloying.After treating the Ni fusing.Add mass percent in the copper liquid and be 0.7% Al and 10% Cu; After Al to be added and the Cu fusing, add the Zn of mass percent 28 % in the copper liquid, smelting temperature is 1160-1180 ℃.After treating Metal Zn fusing, in copper liquid, add Cu-Mn and Cu-Ti master alloy, make that the mass percent of Mn and Ti is 0.4% and 0.05% in the finished product alloy; Add Sn or Cu-Sn master alloy in copper liquid, the mass percent that makes Sn in the finished product alloy is 1.0%; Add Sb in copper liquid, the mass percent that makes Sb in the finished product alloy is 0.05%; Add Fe in copper liquid, the mass percent that makes Fe in the finished product alloy is 0.08%; Add the Cu-Zr master alloy in copper liquid, the mass percent that makes Zr in the finished product alloy is 0.04%; Add the Cu-B master alloy in copper liquid, the mass percent that makes B in the finished product alloy is 0.06%; Add the Cu-As master alloy in copper liquid, the mass percent that makes As in the finished product alloy is 0.05%.Add lanthanum, cerium mischmetal or lanthanum, cerium mischmetal oxide compound in copper liquid, making the mass percent of lanthanum in the finished product alloy or cerium is 0.09%;
After the master alloy fusing to be added, subsequently, alloying constituent is carried out total analysis, carry out necessary alloying element feed supplement or add copper watering down, make it meet the composition requirement of claims regulations, the satisfactory copper liquid temperature of composition adjusted between 1160-1180 ℃, with high pure nitrogen or argon gas as carrier gas, be blown into the sodium aluminum fluoride refining agent of 0.1%-0.2% in the copper liquid, remove the alumina inclusion in the copper liquid.When being blown into, note not staying dead angle and blind area.The gas duration of blast is 3-5 minute.
Sampling analysis, treat that the alloying constituent conformance with standard requires after, copper liquid is warming up to 1160-1180 ℃, subsequently, come out of the stove.
Prepared in this way copper alloy composition is (mass percent): 0.73% Ni, 0.42% Al, 0.042% Ti, 0.33% Mn, 0.34% Al, 26.9% Zn, 0.044% Sb, 0.99% Sn, 0.043% Zr, 0.052% B, 0.06% Fe, total amount of rare earth 0.10%(contain lanthanum and cerium), surplus is copper.
Claims (4)
1. the preparation method of a tin-brass alloy, it is characterized in that, the mass percent of described one-ton brass containing element is Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.02-0.06%, Ti 0.01-0.08%, Zr 0.01-0.08%, B 0.005-0.08%, Sb 0.02-0.06, Ni 0.05-1.2%, Mn 0.05-0.70%, Fe 0.05-0.10%, Al 0.15-0.60%, P 0.03-0.08%, rare earth 0.05-0.40%, total impurities is not more than 0.05%, and surplus is zinc; Described preparation method may further comprise the steps:
⑴ add 59% copper, old material, covers charcoal, and the charcoal add-on is as the criterion can cover metal charge, and heating up makes its whole fusings;
⑵ add iron, nickel in the copper liquid, and stir with copper instrument, and it is fully fused;
⑶ add zinc and make its fusing under 1180-1190 ℃ of temperature condition, add copper-Xi master alloy subsequently, makes the Sn content in the alloy reach target value, and it is fully fused; Smelting temperature 1130-1160 ℃;
⑷ add easy scaling loss elemental copper-aluminium, copper-manganese master alloy in copper liquid, add 10% copper simultaneously, make aluminium, manganese content in the alloy reach target value respectively, treat that copper-aluminium, copper-manganese master alloy melt fully after, copper liquid temperature is adjusted between 1130-1160 ℃;
⑸ change copper liquid over to foundry furnace, and copper liquid temperature is adjusted between 1120-1160 ℃;
⑹ add copper-antimony successively in the copper liquid, copper-arsenic fully fuses it, makes antimony, arsenic content in the alloy reach target value respectively; Add copper-boron, copper-titanium, copper-zirconium master alloy subsequently, it is fully fused, make boron, titanium, zirconium content in the alloy reach target value respectively;
⑺ add copper-lightweight rare earth intermediate alloy in copper liquid, it is fully fused, make the content of rare earth in the alloy reach target value, subsequently, alloying constituent is carried out total analysis, carry out the alloying element feed supplement or add copper watering down, make it meet the composition requirement, the copper liquid temperature that will meet the composition requirement is adjusted between 1150-1160 ℃;
⑻ to containing the tin-brass alloy of aluminium, as carrier gas, is blown into the sodium aluminum fluoride of 0.02-0.05% with high pure nitrogen or argon gas in the copper liquid; The gas duration of blast is 3-5 minute, after converting process finishes, and the charcoal that parches at copper liquid surface coverage one deck immediately; After treating that copper liquid leaves standstill 5-8 minute, can begin to drag for slag, casting.
2. the preparation method of a tin-brass alloy, it is characterized in that, described one-ton brass comprises that the mass percent of element is Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.03-0.06%, Ti 0.03-0.06%, Zr 0.02-0.05%, B 0.01-0.05%, Sb 0.03-0.06%, Ni 0.5-0.9%, Al 0.35-0.50%, rare earth 0.10-0.30%, total impurities is not more than 0.05%, and surplus is zinc; Described preparation method may further comprise the steps:
⑴ add 59% copper, old material, covers charcoal, and the charcoal add-on is as the criterion can cover metal charge, and heating up makes its whole fusings;
⑵ add nickel in the copper liquid, and stir with copper instrument, and it is fully fused;
⑶ add zinc and make its fusing under 1180-1190 ℃ of temperature condition, add copper-Xi master alloy subsequently, makes the Sn content in the alloy reach target value, and it is fully fused; Smelting temperature 1130-1160 ℃;
⑷ add easy scaling loss elemental copper-aluminium intermediate alloy in the copper liquid, adds 10% copper simultaneously, makes the aluminium content in the alloy reach target value respectively, treat that copper-aluminium alloy melts fully after, copper liquid temperature is adjusted between 1130-1160 ℃;
⑸ change copper liquid over to foundry furnace, and copper liquid temperature is adjusted between 1120-1160 ℃;
⑹ add copper-antimony successively in the copper liquid, copper-arsenic fully fuses it, makes antimony, arsenic content in the alloy reach target value respectively; Add copper-boron, copper-titanium, copper-zirconium master alloy subsequently, it is fully fused, make boron, titanium, zirconium content in the alloy reach target value respectively;
⑺ add copper-lightweight rare earth intermediate alloy in copper liquid, it is fully fused, make the content of rare earth in the alloy reach target value, subsequently, alloying constituent is carried out total analysis, carry out the alloying element feed supplement or add copper watering down, make it meet the composition requirement, the copper liquid temperature that will meet the composition requirement is adjusted between 1150-1160 ℃;
⑻ to containing the tin-brass alloy of aluminium, as carrier gas, is blown into the sodium aluminum fluoride of 0.02-0.05% with high pure nitrogen or argon gas in the copper liquid; The gas duration of blast is 3-5 minute, after converting process finishes, and the charcoal that parches at copper liquid surface coverage one deck immediately; After treating that copper liquid leaves standstill 5-8 minute, can begin to drag for slag, casting.
3. the preparation method of a tin-brass alloy, it is characterized in that, described one-ton brass comprises that the mass percent of element is Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.03-0.06%, Ti 0.03-0.055%, Zr 0.02-0.05%, B 0.008-0.05%, Sb 0.03-0.05, Al 0.15-0.50%, Ni 0.20-0.60%, Mn 0.20-0.60%, rare earth 0.05-0.15%, total impurities is not more than 0.05%, and surplus is zinc; Described preparation method may further comprise the steps:
⑴ add 59% copper, old material, covers charcoal, and the charcoal add-on is as the criterion can cover metal charge, and heating up makes its whole fusings;
⑵ add nickel in the copper liquid, and stir with copper instrument, and it is fully fused;
⑶ add zinc and make its fusing under 1180-1190 ℃ of temperature condition, add copper-Xi master alloy subsequently, makes the Sn content in the alloy reach target value, and it is fully fused; Smelting temperature 1130-1160 ℃;
⑷ add easy scaling loss elemental copper-aluminium, copper-manganese master alloy in copper liquid, add 10% copper simultaneously, make aluminium, manganese content in the alloy reach target value respectively, treat that copper-aluminium, copper-manganese master alloy melt fully after, copper liquid temperature is adjusted between 1130-1160 ℃;
⑸ change copper liquid over to foundry furnace, and copper liquid temperature is adjusted between 1120-1160 ℃;
⑹ add copper-antimony successively in the copper liquid, copper-arsenic fully fuses it, makes antimony, arsenic content in the alloy reach target value respectively; Add copper-boron, copper-titanium, copper-zirconium master alloy subsequently, it is fully fused, make boron, titanium, zirconium content in the alloy reach target value respectively;
⑺ add copper-lightweight rare earth intermediate alloy in copper liquid, it is fully fused, make the content of rare earth in the alloy reach target value, subsequently, alloying constituent is carried out total analysis, carry out the alloying element feed supplement or add copper watering down, make it meet the composition requirement, the copper liquid temperature that will meet the composition requirement is adjusted between 1150-1160 ℃;
⑻ to containing the tin-brass alloy of aluminium, as carrier gas, is blown into the sodium aluminum fluoride of 0.02-0.05% with high pure nitrogen or argon gas in the copper liquid; The gas duration of blast is 3-5 minute, after converting process finishes, and the charcoal that parches at copper liquid surface coverage one deck immediately; After treating that copper liquid leaves standstill 5-8 minute, can begin to drag for slag, casting.
4. the preparation method of a tin-brass alloy, it is characterized in that, described one-ton brass comprises that the mass percent of element is Cu 69.0-71.0%, Sn 0.8-1.3%, As 0.03-0.06%, Ti 0.03-0.06%, Zr 0.02-0.05%, B 0.05-0.08%, Sb 0.03-0.06, Ni 0.50-0.80%, Mn 0.30-0.50%, Fe 0.05-0.10%, Al 0.25-0.50%, rare earth 0.05-0.30%, total impurities is not more than 0.05%, and surplus is zinc; Described preparation method may further comprise the steps:
⑴ add 59% copper, old material, covers charcoal, and the charcoal add-on is as the criterion can cover metal charge, and heating up makes its whole fusings;
⑵ add iron, nickel in the copper liquid, and stir with copper instrument, and it is fully fused;
⑶ add zinc and make its fusing under 1180-1190 ℃ of temperature condition, add copper-Xi master alloy subsequently, makes the Sn content in the alloy reach target value, and it is fully fused; Smelting temperature 1130-1160 ℃;
⑷ add easy scaling loss elemental copper-aluminium, copper-manganese master alloy in copper liquid, add 10% copper simultaneously, make aluminium, manganese content in the alloy reach target value respectively, treat that copper-aluminium, copper-manganese master alloy melt fully after, copper liquid temperature is adjusted between 1130-1160 ℃;
⑸ change copper liquid over to foundry furnace, and copper liquid temperature is adjusted between 1120-1160 ℃;
⑹ add copper-antimony successively in the copper liquid, copper-arsenic fully fuses it, makes antimony, arsenic content in the alloy reach target value respectively; Add copper-boron, copper-titanium, copper-zirconium master alloy subsequently, it is fully fused, make boron, titanium, zirconium content in the alloy reach target value respectively;
⑺ add copper-lightweight rare earth intermediate alloy in copper liquid, it is fully fused, make the content of rare earth in the alloy reach target value, subsequently, alloying constituent is carried out total analysis, carry out the alloying element feed supplement or add copper watering down, make it meet the composition requirement, the copper liquid temperature that will meet the composition requirement is adjusted between 1150-1160 ℃;
⑻ to containing the tin-brass alloy of aluminium, as carrier gas, is blown into the sodium aluminum fluoride of 0.02-0.05% with high pure nitrogen or argon gas in the copper liquid; The gas duration of blast is 3-5 minute, after converting process finishes, and the charcoal that parches at copper liquid surface coverage one deck immediately; After treating that copper liquid leaves standstill 5-8 minute, can begin to drag for slag, casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210109672 CN102618750B (en) | 2012-04-16 | 2012-04-16 | Tin brass alloy and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210109672 CN102618750B (en) | 2012-04-16 | 2012-04-16 | Tin brass alloy and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102618750A CN102618750A (en) | 2012-08-01 |
| CN102618750B true CN102618750B (en) | 2013-09-04 |
Family
ID=46558950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210109672 Active CN102618750B (en) | 2012-04-16 | 2012-04-16 | Tin brass alloy and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102618750B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103602852B (en) * | 2013-11-08 | 2015-06-17 | 浙江八达铜业有限公司 | Tin brass strip and manufacturing method thereof |
| CN103725919B (en) * | 2014-01-03 | 2016-09-14 | 安新县华昌合金厂 | A kind of LEAD-FREE BRASS ALLOY |
| CN104894413A (en) * | 2015-04-16 | 2015-09-09 | 新疆大学 | Copper and copper alloy temperature control-pressure regulation smelting method |
| CN108559927A (en) * | 2017-12-12 | 2018-09-21 | 维沃移动通信有限公司 | A kind of preparation method of hardware, hardware and mobile terminal |
| CN109434318B (en) * | 2018-11-09 | 2021-08-31 | 路达(厦门)工业有限公司 | Tin brass alloy solder |
| CN118086717B (en) * | 2024-04-23 | 2024-07-16 | 中铝科学技术研究院有限公司 | Corrosion-resistant brass alloy, and preparation method and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI316555B (en) * | 2005-12-12 | 2009-11-01 | Mitsubishi Shindo Kk |
-
2012
- 2012-04-16 CN CN 201210109672 patent/CN102618750B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102618750A (en) | 2012-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102618750B (en) | Tin brass alloy and manufacturing method thereof | |
| CN101780613B (en) | Special rare earth alloy silver-brazing filler metal | |
| CN102626837B (en) | Moderate temperature copper-based solder and preparation method thereof | |
| JP2007517981A (en) | Lead-free free-cutting brass alloy containing antimony | |
| CN102776409B (en) | Technology for preparing corrosion-resistant copper alloy | |
| CN101417375A (en) | Leadless welding alloy for welding electronic elements | |
| CN103146943A (en) | Red impure copper refining agent and preparation method thereof | |
| CN101586241B (en) | Aluminum zinc series alloy sacrificial anode for electric water heaters | |
| CN104862710A (en) | Environment-friendly sacrificial zinc alloy anode | |
| CN107447127B (en) | A kind of open ocean erosion resistance copper alloy and preparation method thereof | |
| CN101988165B (en) | High-temperature oxidation resistant lead-free tin-coated alloy | |
| CN102676877B (en) | Iron white copper alloy and preparation method thereof | |
| CN107475562B (en) | A kind of sea water resistance erosion processing copper alloy and preparation method thereof | |
| CN110592424A (en) | Novel multi-element high-strength high-corrosion-resistance copper alloy and preparation method thereof | |
| KR101420619B1 (en) | Lead-free brass alloy and thereof manufacturing method | |
| CN101956197A (en) | High-efficiency multi-element magnesium alloy sacrificial anode and preparation method thereof | |
| CN100398251C (en) | Cadmium-free silver solder containing gallium and cerium | |
| CN104131185A (en) | Slag refining method for preparing immiscible alloy ingot casting | |
| CN101736179B (en) | Multielement additive for preparing unleaded free-cutting brass and preparation method and application thereof | |
| CN110004328A (en) | A kind of anticorrosive cast aluminium lithium alloy and preparation method thereof | |
| CN105149809A (en) | Antioxidant suitable for SnAgCu or SnCu solder and preparation method thereof | |
| CN102676873A (en) | Aluminum brass alloy and preparation method thereof | |
| US20040151616A1 (en) | Lead-free alloys, composition thereof, methods of preparation and uses for soldering and babbitting | |
| KR101483542B1 (en) | Silicon brass alloy and thereof manufacturing method | |
| JP2000282165A (en) | Lithium-containing magnesium alloy, and crucible for its smelting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |