CN104894413A - Copper and copper alloy temperature control-pressure regulation smelting method - Google Patents
Copper and copper alloy temperature control-pressure regulation smelting method Download PDFInfo
- Publication number
- CN104894413A CN104894413A CN201510178755.5A CN201510178755A CN104894413A CN 104894413 A CN104894413 A CN 104894413A CN 201510178755 A CN201510178755 A CN 201510178755A CN 104894413 A CN104894413 A CN 104894413A
- Authority
- CN
- China
- Prior art keywords
- copper
- alloy
- smelting furnace
- melting
- add
- 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.)
- Pending
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention relates to a copper and copper alloy temperature control-pressure regulation smelting method. The method comprises the following steps: according to the elements contained in a target alloy, adding meltable and oxidizable raw materials besides the metal raw materials in a melting furnace, adjusting temperature to 0-200 DEG C higher than a melting point of copper; after the raw materials are smelted, introducing nitrogen or argon, increasing the pressure of the melting furnace to 0.5-50atm, and adding the meltable and oxidizable metal raw materials in the melting furnace. By using the method of the invention, a smelting process for copper and the copper alloy can be reinforced, the cycle of melting materials is shortened, the smelting production efficiency is increased; oxidation loss and volatilization loss of the alloy at a smelting period are reduced, flame burning loss can be eliminated; charcoal covering is cancelled, consumption of 20-25kg/t copper can be reduced; environment pollution is reduced, labor environment is improved, environmental protection equipment investment and place occupation can be cancelled, and fixed assets investment and dust collector operation cost are reduced.
Description
Technical field
The invention belongs to metallurgical casting technical field, particularly relate to a kind of Copper and its alloy temperature control-pressure regulation melting method.
Background technology
" Wang Biwen, Copper fabrication branch of China YouSe metal industry association, " copper alloy condenser pipe market study report ", in June, 2007 ", the article pointed out in smelting copper alloy process, metal loss is the main composition item of founding cost.Compared with international most advanced level, still there is certain gap in China's Copper fabrication metal loss.At present, China on average often produces the metal loss level of one ton of Copper fabrication material at about 50kg, and the metal loss of international most advanced level is at about 20kg, exceeds international most advanced level 150%.
Traditional Copper and its alloy melting generally adopts air atmosphere-atmospheric processes condition melting, in alloy melting process, the metals such as low melting point, Volatile Elements phosphorus, lead, tin, cadmium, magnesium, zinc cause a large amount of metal loss by oxidation, volatilization, flame burning.The oxidizable elements such as tin, aluminium, beryllium, silicon, manganese, zirconium, chromium, cadmium, magnesium, phosphorus, lead, nickel, iron, cause a large amount of metal loss by links such as oxidation and slag making, are the major causes that China's Copper fabrication metal loss level remains high.
" Jiang Sheming; the 8th China YouSe metallic copper, plumbous zinc industrial chain development forum; Chinese steel grinds advanced metallic substance Tu Du national engineering laboratory of scientific and technological group; " present situation of China's Coated Steel Sheet steel plate, development and the demand to zinc "; in April, 2012 ", the article pointed out in all copper alloy kinds, brass is most important, most widely used general, copper alloy that consumption is maximum.Metallic zinc is the topmost alloying elements of brass alloys, and for H59, H62 brass alloys, its nominal Zn content is respectively 41% and about 38%.Zinc is the topmost alloying element of German silver, in most bell metal, also containing a large amount of alloying element zinc.China's zinc output in 2012, at 3,900,000 tons, wherein, has the metallic zinc of 17% (about 66.3 ten thousand tons) for the alloying element of copper alloy.According to the proportioning process that Copper fabrication enterprise of China is current, blending process considers that the oxidization burning loss of metallic zinc is that 8%-12%(averages 10%) calculate, the metallic zinc of producing for copper alloy is every year 66.3 ten thousand tons, the metallic zinc loss caused because of oxidation, volatilization, scaling loss, slag making is 6.63 ten thousand tons, is the major cause that China's Copper fabrication metal loss level remains high.
Traditional brass alloys melting, generally adopts under atmospheric environment, normal pressure operating mode, low temperature zincification melting process.The chemical property of zinc is active, and in air at normal temperatures, the thin and zinc subcarbonate film of densification of Surface Creation one deck, can stop further oxidation.After temperature reaches 225 DEG C, namely there is fierce oxidizing reaction.The fusing point of zinc is only 419.5 DEG C, boiling point 907 DEG C, and the fusing point of copper is 1083.5 DEG C, boiling point 2595 DEG C.The fusing point of two kinds of metals differs 664 DEG C, and boiling point differs 1488 DEG C.So-called low temperature adds zinc technology, and service temperature, generally at about 1150 DEG C, certainly exists a large amount of oxidation of the vigorous oxidation of zinc, rapid vaporization, generation and volatilization loss in zincification process.Introduce in " Zhong Weijia, Ma Keding, Wu Weizhi; copper processing techniques application manual; metallurgical industry press, in February, 2007, Beijing; P316 "; when melting leaded brass, under the condition adopting coal gas covering protection, metal volatilization loss is 0.48%; consider that the finished product rate that leaded brass is produced is 75%, namely the metal loss through volatilization of only founding operation reaches 6.4 kilograms.
Patent No. ZL201210076603.0, the Chinese invention patent of " a kind of melting method of brass alloys ", this invention proposes: adopt low temperature zincification, normal pressure exempts from flame melting, high temperature slag skimming process produces brass alloys, fine copper is not considered in this invention, high-copper, bronze, the metal loss caused in copper-nickel alloy and middle low brass fusion process, only the flame melting technology of Mock platina is improved, oxidization burning loss is not considered yet, volatilization loss, slag making loss is on the impact of smelting metal loss, can only by low temperature realize Mock platina without flame melting, production efficiency is very low.
The physicochemical property of the Volatile Elements such as zinc, cadmium, phosphorus:
1, the vapour pressure of the Volatile Elements such as zinc, cadmium, phosphorus increases with the rising of temperature, obeys exponential relationship, can approximate representation be between vapour pressure and temperature:
, in formula: P is the vapour pressure of zinc, mmHg; T is aluminium alloy absolute temperature, k.For brass, under copper alloy melting process condition, the corresponding relation between the vapour pressure of zinc and temperature draws from works such as Xu Caidongs in Table 1(, zinc Physical Chemistry of Metallurgy, Shanghai science tech publishing house, on July 1st, 1975, Shanghai, P34-39):
Table 1: the corresponding relation between the vapour pressure of zinc and temperature
2, under brass alloys melting process condition (an about 1atm(normal atmosphere), 1150 DEG C), there is the running balance of the liquefaction of zinc carburation by evaporation and gaseous state zinc:
Zn(is liquid)
zn(gaseous state) ↑------(1)
3, under atmospheric environment, melt brass alloys, there is the oxidizing mediums such as oxygen and carbon dioxide, there is the oxidizing reaction of gaseous state zinc:
2Zn (gaseous state)+O2 → 2ZnO(is solid-state)------(2)
Zn (gaseous state)+CO2 → ZnO(is solid-state)+CO,------(3)
As shown in Table 1, under brass alloys melting process condition, because temperature of fusion is far above the boiling point of zinc, the motion of liquid atomic strongly, for the Mock platina that Zn content reaches 20%, the bonding force between Cu, Zn atom weakens, and there is the volatilization loss of extremely strong zinc.Known by formula (1), raised temperature, the vaporization of zinc is strengthened, and the volatilization loss of zinc increases; Elevation system pressure, the liquefaction of gaseous state zinc is strengthened, and the volatilization loss of zinc reduces.Oxidizing reaction makes the concentration of zinc fume lower, and the volatilization loss of zinc is aggravated.Traditional brass alloys melting melts brass alloys under atmospheric environment, there is the oxidizing reaction of the oxidizing mediums such as oxygen and carbon dioxide and gaseous state zinc, because oxidizing reaction consumes gaseous state zinc, the balance of formula (1), formula (2), formula (3) is moved right, accelerates the gasification of zinc, volatilization, oxidation, scaling loss.
Summary of the invention
The present invention be directed to above-mentioned prior art not enough, a kind of Copper and its alloy temperature control-pressure regulation melting method is provided, the method can intensified smelting process, shorten the material cycle, the oxidation of Copper and its alloy melting period of enhancing productivity, reduce, volatilization, flame combustion loss.
The present invention is achieved by the following technical solutions:
A kind of Copper and its alloy temperature control-pressure regulation melting method, it is characterized in that, described method steps comprises: constituent element contained by subject alloy, adds the raw material except meltable, oxidizable raw metal in smelting furnace, and adjustment temperature is to exceeding 0-200 DEG C compared with the fusing point of copper; After melting sources, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then add meltable, oxidizable raw metal in smelting furnace.
According to above-mentioned melting method, it is characterized in that, when using fine copper as raw material, in smelting furnace, adding fine copper, adjustment temperature is to exceeding 0-200 DEG C compared with the fusing point of copper; When after fine copper fusing, in smelting furnace, add high melting point alloy constituent element; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in smelting furnace, add meltable, oxidizable alloy constituent element.
According to above-mentioned melting method, it is characterized in that, when use main containing the old material of copper alloy that is meltable, easy oxidation metal component as melting raw material, and in the old material of copper alloy copper content lower than in subject alloy during copper content: in smelting furnace, add fine copper, be warming up to comparatively copper fusing point high 0 DEG C-200 DEG C; When after fine copper fusing, in smelting furnace, add high melting point alloy constituent element; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in molten metal, add the old material of copper alloy, or in molten metal, add the old material of copper alloy and meltable, oxidizable alloy constituent element.
According to above-mentioned melting method, it is characterized in that, when use main containing the old material of copper alloy that is meltable, easy oxidation metal component as melting raw material, and in the old material of copper alloy copper content higher than in subject alloy during copper content: be warming up to comparatively copper fusing point high 0 DEG C-200 DEG C; High melting point alloy constituent element is added in smelting furnace; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in molten metal, add the old material of copper alloy, or in molten metal, add the old material of copper alloy and meltable, oxidizable alloy constituent element.
According to above-mentioned melting method, it is characterized in that, when using the main old material of copper alloy containing refractory metal component as melting raw material, and in the old material of copper alloy copper content higher than in subject alloy during copper content: in smelting furnace, add the old material of copper alloy, be warming up to comparatively copper fusing point high 0 DEG C-200 DEG C; High melting point alloy constituent element is added in smelting furnace; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in molten metal, add meltable, oxidizable alloy constituent element.
According to above-mentioned melting method, it is characterized in that, when using the main old material of copper alloy containing refractory metal component as melting raw material, and in the old material of copper alloy copper content lower than in subject alloy during copper content: in smelting furnace, add the old material of pure copper and copper alloy, be warming up to comparatively copper fusing point high 0 DEG C-200 DEG C; High melting point alloy constituent element is added in smelting furnace; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in molten metal, add meltable, oxidizable alloy constituent element.
Advantageous Effects of the present invention: the invention provides a kind of Copper and its alloy temperature control-pressure regulation melting method, uses Copper and its alloy melting method of the present invention, can strengthen the melting process of Copper and its alloy, shortens the material cycle, improves fusing production efficiency; The oxidational losses of alloy melting phase, volatilization loss, elimination flame combustion loss can be reduced; Charcoal can be cancelled cover, reduce charcoal consumption 20-25kg/t copper.Adopt this technology to reduce environmental pollution, improve work situation, the investment of cancellation environmental protection equipment and place take, and reduce investment in fixed assets and dust collection device working cost.
Embodiment
A kind of Copper and its alloy temperature control-pressure regulation melting method, step comprises: be first seated in by smelting furnace body of heater in the adjustable enclosed space of furnace pressure (furnace pressure regulation range is 0-50atm standard atmospheric pressure), or install sealing bonnet additional at the oral area of common smelting furnace, form the adjustable space of furnace pressure on metal pool top; Constituent element contained by subject alloy, adds the raw material except meltable, oxidizable raw metal in smelting furnace, and adjustment temperature is to exceeding 0-200 DEG C compared with the fusing point of copper; After melting sources, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then add meltable, oxidizable raw metal in smelting furnace.
Wherein, " meltable, oxidizable raw metal " refers to the pure metal raw material (as metals such as Zn, Mn, Zr, Sn) that fusing point is low or more oxidizable than copper, and main containing the old material of copper alloy that is meltable, easy oxidation metal component.These pure metal and alloy are at high temperature oxidizable, volatile." raw material except except meltable, oxidizable raw metal " refers to that fusing point is more than or equal to copper and is not easy the pure metal raw material (as metals such as Cu, Fe, Ni) of oxidation, and the main old material of copper alloy containing refractory metal component.The present invention adopts temperature control-pressure regulation process melts Copper and its alloy, realizes the melting process of strengthening Copper and its alloy, shortens the fusing cycle of alloy, improves the melting efficiency of Copper and its alloy; Reduce the oxidational losses of Copper and its alloy melting process, volatilization loss, flame combustion loss.Adopt normal pressure, high temperature melting technology fusing fine copper, high-melting-point pure metal raw material and the main old material of copper alloy containing refractory metal component, in melting process, without the need to media protections such as charcoals, shorten the melting period of alloy substrate and refractory element, meltable when removing, after raw material outside oxidizable raw metal melts completely, nitrogen or argon gas is passed in smelting furnace, smelting furnace pressure is elevated to 0.5-50atm, constituent element contained by subject alloy again, the pure metal raw material that fusing point is low or more oxidizable than copper is added in molten metal, and the main old material of copper alloy containing meltable easy oxidation metal component, carry out the fusing of the old material raw material of copper alloy mainly containing meltable easy oxidation metal component, and low melting point, meltable, oxidizable, volatile alloy constituent element is (as tin, zinc, phosphorus, cadmium, manganese, aluminium, plumbous etc.) rapid alloying.The alloying of the fusing of the copper alloy old material raw material mainly containing meltable easy oxidation metal component and the oxidizable pure metal raw material of low melting point is carried out under high-temperature pressurizing condition, the volatilization loss of meltable, volatile constituent element can be reduced, prevent volatile constituent element (as metallic zinc, tin etc.) boiling, flame, burning, shorten the melting period of low melting point, oxidizable, volatile alloy constituent element, reduce the oxidational losses of oxidizable element, reduce the volatilization loss of Volatile Elements, adopt inert media environment to eliminate flame combustion loss.
The copper material used according to melting and the chemical composition of subject alloy, this step has several different situations:
When using fine copper as raw material: add fine copper in smelting furnace, adjustment temperature is to exceeding 0-200 DEG C compared with the fusing point of copper; After fine copper fusing, in smelting furnace, add high melting point alloy constituent element; Pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in smelting furnace, add meltable, oxidizable alloy constituent element.High melting point alloy constituent element refers to that fusing point is more than or equal to copper and is not easy the metal component (as metal components such as Fe, Ni) of oxidation in subject alloy, and meltable oxidizable alloy constituent element refers to the metal component (as metal components such as Zn, Mn, Zr, Sn) that fusing point is low or more oxidizable than copper in subject alloy.
When use main containing the old material of copper alloy that is meltable, easy oxidation metal component as melting raw material, and in the old material of copper alloy copper content lower than in subject alloy during copper content: in smelting furnace, add fine copper, be warming up to comparatively copper fusing point high 0 DEG C-200 DEG C; When after fine copper fusing, in smelting furnace, add high melting point alloy constituent element; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in molten metal, add the old material of copper alloy, or in molten metal, add the old material of copper alloy and meltable, oxidizable alloy constituent element.
When use main containing the old material of copper alloy that is meltable, easy oxidation metal component as melting raw material, and in the old material of copper alloy copper content higher than in subject alloy during copper content: be warming up to comparatively copper fusing point high 0 DEG C-200 DEG C; High melting point alloy constituent element is added in smelting furnace; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in molten metal, add the old material of copper alloy, or in molten metal, add the old material of copper alloy and meltable, oxidizable alloy constituent element.
When using the main old material of copper alloy containing refractory metal component as melting raw material, and in the old material of copper alloy copper content higher than in subject alloy during copper content: in smelting furnace, add the old material of copper alloy, be warming up to comparatively copper fusing point high 0 DEG C-200 DEG C; High melting point alloy constituent element is added in smelting furnace; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in molten metal, add meltable, oxidizable alloy constituent element.
When using the main old material of copper alloy containing refractory metal component as melting raw material, and in the old material of copper alloy copper content lower than in subject alloy during copper content: in smelting furnace, add the old material of pure copper and copper alloy, be warming up to comparatively copper fusing point high 0 DEG C-200 DEG C; High melting point alloy constituent element is added in smelting furnace; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in molten metal, add meltable, oxidizable alloy constituent element.
Other situations do not repeat one by one, as long as follow the principle that meltable, oxidizable raw metal adds after boosting, other raw metal adds prior pressure application.Wherein, according to the chemical composition of copper raw material and target copper alloy, when not needing to add high melting point alloy constituent element in smelting furnace (not containing high melting point alloy constituent element etc. in such as subject alloy), the step adding high melting point alloy constituent element in smelting furnace is only needed to omit.
When fine copper and/or containing the old material of copper alloy of high melting point alloy constituent element and high melting point alloy constituent element for reaction institute required time, need first to heat up fusing by fine copper and/or containing the old material of copper alloy of high melting point alloy constituent element, and then add high melting point alloy constituent element in smelting furnace.Simultaneously its reason adds in smelting furnace when fine copper and/or containing the old material of copper alloy of high melting point alloy constituent element and high melting point alloy constituent element, then the fusing that heats up, and high melting point alloy constituent element can be caused oxidized.
Embodiment 1
HNi65-5 brass
In the line-frequency induction smelting furnace that furnace pressure is adjustable, under normal pressure, atmospheric environment, be that the Cu of 65% puts into main frequency furnace and melts by mass percent, temperature of fusion exceeds 100-190 DEG C compared with the normal melting temperature (1130-1180 DEG C) of prior art.Treat that copper material melts, in copper liquid, add the nickel that mass percent is 5.5%, rapid melting metallic nickel under high temperature, air atmosphere condition.Treat that metallic nickel fusing terminates, furnace pressure is adjusted to 5atm, in the copper-nickel alloy liquid of fusing, the Zn that mass percent is 32 % is added under high temperature, condition with pressure, temperature of fusion exceeds 3-90 DEG C, the metallic zinc that rapid melting is meltable, oxidizable compared with the normal melting temperature (1080-1130 DEG C) of prior art.By high temperature, normal pressure rapid melting copper material and refractory metal nickel, by the metallic zinc that closed environment, protective atmosphere, high temperature, high pressure (temperature control-pressure regulation) rapid melting are meltable, oxidizable.
Melt completely until alloy, after alloying, by the temperature adjustment of copper liquid to casting temp 1070-1100 DEG C, sampling analysis.Copper alloy composition prepared is in this way (mass percent): the Cu of 65.3%, the nickel of 5.9%, surplus is zinc.
Embodiment 2
HFe59-1-1 brass
In the line-frequency induction smelting furnace that furnace pressure is adjustable, under normal pressure, atmospheric environment, be that the Cu of 59% puts into main frequency furnace and melts by mass percent, temperature of fusion exceeds 50-150 DEG C compared with the normal melting temperature (1130-1180 DEG C) of prior art.Treat that copper material melts, in copper liquid, add mass percent is the iron of 1.2% and the nickel of 0.5%, rapid melting metallic copper, iron, nickelalloy under high temperature, air atmosphere condition.Treat that metallic copper-iron-nickel fusing terminates, furnace pressure is adjusted to 10atm, under high temperature, condition with pressure, add mass percent in the copper-iron nickel alloy liquid of fusing is the Al of 0.8%, Mn, the Sn of 0.9%, the Zn of 37 % of 0.9%, temperature of fusion exceeds 5-90 DEG C compared with the normal melting temperature (1020-1060 DEG C) of prior art, metallic aluminium, manganese, tin, zinc that rapid melting is meltable, oxidizable.
Copper alloy composition prepared is in this way (mass percent): the Cu of 59.6%, the Fe of 1.1%, the Al of 0.35%, the Mn of 0.69%, the Sn of 0.63%, the nickel of 0.45%, surplus is zinc.
Embodiment 3
H59 brass
In the line-frequency induction smelting furnace that furnace pressure is adjustable, under air, atmospheric pressure environment, be that the Cu of 59% puts into main frequency furnace and melts by mass percent, temperature of fusion exceeds 60-120 DEG C compared with the normal melting temperature (1140-1180 DEG C) of prior art.Treat that metallic copper fusing terminates, furnace pressure is adjusted to 15atm, and under high temperature, condition with pressure, add the Zn that mass percent is 43% in the copper liquid of fusing, temperature of fusion exceeds 1-100 DEG C compared with the normal melting temperature (1020-1050 DEG C) of prior art.The metallic zinc that rapid melting is meltable, oxidizable.
Copper alloy composition prepared is in this way (mass percent): the Cu of 59.1%, surplus is zinc.
Embodiment 4
With the old material melting HNi65-5 brass of 60%
In the line-frequency induction smelting furnace that furnace pressure is adjustable, under normal pressure, atmospheric environment, according to food ingredient, melted by the main frequency furnace of putting into of 70% of copper content in virgin material, the more existing normal melting temperature of temperature of fusion (1130-1180 DEG C) exceeds 190 DEG C.Treat that copper material melts, in copper liquid, add nickel in the ratio of 18:1, rapid melting metallic nickel under high temperature, air atmosphere condition.Treat that metallic nickel fusing terminates, furnace pressure is adjusted to 5atm, under high temperature, condition with pressure, add the old material of foundry returns in the copper-nickel alloy liquid of fusing, temperature of fusion comparatively normal melting temperature (1080-1130 DEG C) exceeds 3-90 DEG C, melts the old material of brass alloys under high temperature, condition with pressure.Treat that old material melts completely, in aluminium alloy, add the Zn that virgin material food ingredient mass percent is 32 %, temperature of fusion exceeds 3-90 DEG C, the metallic zinc that rapid melting is meltable, oxidizable compared with the normal melting temperature (1080-1130 DEG C) of prior art.
Melt completely until alloy, after alloying, by the temperature adjustment of copper liquid to casting temp 1070-1100 DEG C, sampling analysis.Copper alloy composition prepared is in this way (mass percent): the Cu of 65.9%, the nickel of 5.4%, surplus is zinc.
Embodiment 5
BZn15-20 copper-nickel alloy
In the line-frequency induction smelting furnace that furnace pressure is adjustable, under normal pressure, atmospheric environment, be that the Cu of 63.5% puts into main frequency furnace and melts by mass percent, temperature of fusion comparatively prior art temperature of fusion (1130-1180 DEG C) exceeds 50-150 DEG C.Treat that copper material melts, in copper liquid, add the nickel that mass percent is 15.5%, rapid melting metallic copper, nickelalloy under high temperature, air atmosphere condition.Treat that metallic copper-nickel fusing terminates, furnace pressure is adjusted to 10atm, in the copper-nickel alloy liquid of fusing, the Zn that mass percent is 23 % is added under high temperature, condition with pressure, temperature of fusion comparatively prior art temperature of fusion (1180-1210 DEG C) exceeds 5-90 DEG C, the metallic zinc that rapid melting is meltable, oxidizable.
Copper alloy composition prepared is in this way (mass percent): the Cu of 63%, the nickel of 15.3%, surplus is zinc.
Embodiment 6
BFe10-1-1 copper-nickel alloy
In the line-frequency induction smelting furnace that furnace pressure is adjustable, under normal pressure, atmospheric environment, be that the Cu of 88% puts into main frequency furnace and melts by mass percent, temperature of fusion exceeds 50-150 DEG C compared with the normal melting temperature (1130-1180 DEG C) of prior art.Treat that copper material melts, in copper liquid, add mass percent is the iron of 1.2% and the nickel of 10.5%, rapid melting metallic copper, iron, nickelalloy under high temperature, air atmosphere condition.Treat that metallic copper-iron-nickel fusing terminates; furnace pressure is adjusted to 0.5atm, in stove, pass into nitrogen protection atmosphere; in the copper-iron nickel alloy liquid of fusing, the Mn that mass percent is 0.9% is added under high temperature, with pressure, protective atmosphere condition; temperature of fusion exceeds 5-90 DEG C, the manganese metal that rapid melting is oxidizable compared with the normal melting temperature (1280-1330 DEG C) of prior art.
Copper alloy composition prepared is in this way (mass percent): the Fe of 1.2%, the Mn of 0.79%, the nickel of 10.3%, surplus is copper.
Embodiment 7:
QCd1 bronze
In the line-frequency induction smelting furnace that furnace pressure is adjustable, under normal pressure, atmospheric environment, be that the Cu of 99% puts into main frequency furnace and melts by mass percent, temperature of fusion exceeds 150 DEG C compared with the normal melting temperature (1130-1180 DEG C) of prior art.Treat that copper material melts, furnace pressure is adjusted to 12atm, under high temperature, condition with pressure, add the Cd that mass percent is 1.2 % in the copper liquid of fusing, temperature of fusion exceeds 5-90 DEG C, the cadmium metal that rapid melting is meltable, oxidizable compared with the normal melting temperature (1230-1260 DEG C) of prior art.
Copper alloy composition prepared is in this way (mass percent): the cadmium of 1.1%, surplus is copper.
Embodiment 8:
QZr0.2 bronze
In the line-frequency induction smelting furnace that furnace pressure is adjustable, under normal pressure, atmospheric environment, be that the Cu of 99.8% puts into main frequency furnace and melts by mass percent, temperature of fusion exceeds 10-50 DEG C compared with the normal melting temperature (1130-1180 DEG C) of prior art.Treat that copper material melts; furnace pressure is adjusted to 1atm, in stove, pass into argon gas; form argon atmosphere; in the copper liquid of fusing, the Zr that mass percent is 0.28% is added under high temperature, with pressure, protective atmosphere condition; temperature of fusion exceeds 5-90 DEG C, the metal zirconium that rapid melting is oxidizable compared with the normal melting temperature (1180-1220 DEG C) of prior art.
Copper alloy composition prepared is in this way (mass percent): the zirconium of 0.24%, surplus is copper.
Claims (6)
1. Copper and its alloy temperature control-pressure regulation melting method, it is characterized in that, described method steps comprises: constituent element contained by subject alloy, adds the raw material except meltable, oxidizable raw metal in smelting furnace, and adjustment temperature is to exceeding 0-200 DEG C compared with the fusing point of copper; After melting sources, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then add meltable, oxidizable raw metal in smelting furnace.
2. melting method according to claim 1, is characterized in that, when using fine copper as raw material, in smelting furnace, adds fine copper, and adjustment temperature is to exceeding 0-200 DEG C compared with the fusing point of copper; When after fine copper fusing, in smelting furnace, add high melting point alloy constituent element; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in smelting furnace, add meltable, oxidizable alloy constituent element.
3. melting method according to claim 1, it is characterized in that, the old material of copper alloy that is meltable, easy oxidation metal component is contained as melting raw material when use is main, and in the old material of copper alloy copper content lower than in subject alloy during copper content: in smelting furnace, add fine copper, be warming up to comparatively copper fusing point high 0 DEG C-200 DEG C; When after fine copper fusing, in smelting furnace, add high melting point alloy constituent element; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in molten metal, add the old material of copper alloy, or in molten metal, add the old material of copper alloy and meltable, oxidizable alloy constituent element.
4. melting method according to claim 1, it is characterized in that, when use main containing the old material of copper alloy that is meltable, easy oxidation metal component as melting raw material, and in the old material of copper alloy copper content higher than in subject alloy during copper content: be warming up to comparatively copper fusing point high 0 DEG C-200 DEG C; High melting point alloy constituent element is added in smelting furnace; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in molten metal, add the old material of copper alloy, or in molten metal, add the old material of copper alloy and meltable, oxidizable alloy constituent element.
5. melting method according to claim 1, it is characterized in that, when using the main old material of copper alloy containing refractory metal component as melting raw material, and in the old material of copper alloy copper content higher than in subject alloy during copper content: in smelting furnace, add the old material of copper alloy, be warming up to comparatively copper fusing point high 0 DEG C-200 DEG C; High melting point alloy constituent element is added in smelting furnace; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in molten metal, add meltable, oxidizable alloy constituent element.
6. melting method according to claim 1, it is characterized in that, when using the main old material of copper alloy containing refractory metal component as melting raw material, and in the old material of copper alloy copper content lower than in subject alloy during copper content: in smelting furnace, add the old material of pure copper and copper alloy, be warming up to comparatively copper fusing point high 0 DEG C-200 DEG C; High melting point alloy constituent element is added in smelting furnace; In smelting furnace, pass into nitrogen or argon gas, smelting furnace pressure is elevated to 0.5-50atm, then in molten metal, add meltable, oxidizable alloy constituent element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178755.5A CN104894413A (en) | 2015-04-16 | 2015-04-16 | Copper and copper alloy temperature control-pressure regulation smelting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178755.5A CN104894413A (en) | 2015-04-16 | 2015-04-16 | Copper and copper alloy temperature control-pressure regulation smelting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104894413A true CN104894413A (en) | 2015-09-09 |
Family
ID=54027363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510178755.5A Pending CN104894413A (en) | 2015-04-16 | 2015-04-16 | Copper and copper alloy temperature control-pressure regulation smelting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104894413A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5825448A (en) * | 1982-07-26 | 1983-02-15 | Sumitomo Electric Ind Ltd | Electrically conductive copper alloy |
| US4659377A (en) * | 1979-05-23 | 1987-04-21 | Nl Industries, Inc. | Method for producing an oxidation resistant magnesium alloy melt |
| JPH0849025A (en) * | 1994-08-05 | 1996-02-20 | Mitsui Mining & Smelting Co Ltd | Aluminum-manganese master alloy additive for producing aluminum-containing magnesium-base alloy |
| CN102605205A (en) * | 2012-03-22 | 2012-07-25 | 金川集团有限公司 | Brass alloy smelting method |
| CN102618750A (en) * | 2012-04-16 | 2012-08-01 | 金川集团有限公司 | Tin brass alloy and manufacturing method thereof |
| CN102901659A (en) * | 2012-09-06 | 2013-01-30 | 中国科学院金属研究所 | Preparation method for metal alloy test rod |
| CN103114172A (en) * | 2013-03-04 | 2013-05-22 | 内蒙古包钢钢联股份有限公司 | Calcium treatment method of vacuum induction furnace in smelting experimental steel |
| CN103647063A (en) * | 2013-12-05 | 2014-03-19 | 内蒙古科技大学 | Hydrogen storage electrode alloy for Ni-MH secondary battery and preparation method thereof |
-
2015
- 2015-04-16 CN CN201510178755.5A patent/CN104894413A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659377A (en) * | 1979-05-23 | 1987-04-21 | Nl Industries, Inc. | Method for producing an oxidation resistant magnesium alloy melt |
| JPS5825448A (en) * | 1982-07-26 | 1983-02-15 | Sumitomo Electric Ind Ltd | Electrically conductive copper alloy |
| JPH0849025A (en) * | 1994-08-05 | 1996-02-20 | Mitsui Mining & Smelting Co Ltd | Aluminum-manganese master alloy additive for producing aluminum-containing magnesium-base alloy |
| CN102605205A (en) * | 2012-03-22 | 2012-07-25 | 金川集团有限公司 | Brass alloy smelting method |
| CN102618750A (en) * | 2012-04-16 | 2012-08-01 | 金川集团有限公司 | Tin brass alloy and manufacturing method thereof |
| CN102901659A (en) * | 2012-09-06 | 2013-01-30 | 中国科学院金属研究所 | Preparation method for metal alloy test rod |
| CN103114172A (en) * | 2013-03-04 | 2013-05-22 | 内蒙古包钢钢联股份有限公司 | Calcium treatment method of vacuum induction furnace in smelting experimental steel |
| CN103647063A (en) * | 2013-12-05 | 2014-03-19 | 内蒙古科技大学 | Hydrogen storage electrode alloy for Ni-MH secondary battery and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 吴树森，吕书林，刘鑫旺编著: "《有色金属熔炼入门与精通》", 30 May 2014, 北京：机械工业出版社 * |
| 徐允长著: "《铸造工》", 30 July 2004, 北京：化学工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104775042A (en) | Low-metal-loss smelting method of copper alloy | |
| MX2009012958A (en) | Direct smelting of zinc bearing compounds to produce metallic zinc. | |
| CN110863153B (en) | Preparation method of FeCrAl-based ODS alloy material for advanced nuclear fuel element cladding | |
| JPWO2012081346A1 (en) | Nickel brazing material with excellent heat resistance | |
| CN101007376A (en) | Silver based electric vacuum solder | |
| CN104480403A (en) | Low-carbon martensitic precipitation hardening stainless steel and method of manufacturing impeller forging by using same | |
| CN109913719B (en) | Magnesium alloy, method for producing same, and electronic device | |
| CN105908218A (en) | High-purity rare earth metal and preparation method and application thereof | |
| CN102337462A (en) | Production method for GCr15 bearing steel pipe | |
| CN103352137A (en) | High-strength and high-conductivity copper alloy for power switch spring contact and preparation method of high-strength and high-conductivity copper alloy | |
| CN105970074A (en) | Method for quickly smelting low-nitrogen stainless steel through vacuum induction furnace | |
| CN104894413A (en) | Copper and copper alloy temperature control-pressure regulation smelting method | |
| CN1752233A (en) | Vacuum smelting method for high-thallium coarse cadmium | |
| CN102534272A (en) | Processing method for high vacuum smelting of cobalt base molybdenum magnesium alloy | |
| CN105355355B (en) | A kind of functional material and preparation method | |
| CN114657412A (en) | Method for producing BFe10-1-1 ingot casting at low cost | |
| WO2018083433A1 (en) | Steel production without plant-site carbon dioxide emission | |
| CN105154690A (en) | Preparation method of high-temperature-resistant titanium-aluminum-based alloy material | |
| CN103436732B (en) | A kind of efficient molten tin antioxidant additive | |
| CN102808092A (en) | Method for preparing ultra low-oxygen chromium sheets | |
| CN106319258A (en) | Method for directly supplying AlSi9Cu3 liquid aluminum alloy | |
| CN114309578A (en) | Wear-resistant metal ceramic powder, application thereof and wear-resistant metal ceramic | |
| Wu et al. | Preparation of high quality FeV65N by carbonitrothermic reduction of V2O5 and Fe2O3 | |
| CN100396426C (en) | Al-Cu-Sn series lead-free soldering tin | |
| Burja et al. | Alumothermic reduction of ilmenite in a steel melt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150909 |
|
| WD01 | Invention patent application deemed withdrawn after publication |