CN1974069A - Production process of non-vacuum continuous fusion-cast Cu-Ti alloy - Google Patents
Production process of non-vacuum continuous fusion-cast Cu-Ti alloy Download PDFInfo
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- CN1974069A CN1974069A CN 200610098356 CN200610098356A CN1974069A CN 1974069 A CN1974069 A CN 1974069A CN 200610098356 CN200610098356 CN 200610098356 CN 200610098356 A CN200610098356 A CN 200610098356A CN 1974069 A CN1974069 A CN 1974069A
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Abstract
The present invention relates to production process of non-vacuum continuous fusion-cast Cu-Ti alloy. The fusion-casting process is completed in inert gas protection and with an undercurrent industrial frequency cored combined electric furnace. The production plant includes an industrial frequency cored smelting furnace, a protecting furnace, a continuous casting machine, and an undercurrent channel between the smelting furnace and the protecting furnace and controlled with a stopper. The production process includes the steps of: stoving copper alloy and other trace elements, loading the material into the furnace, adding volatile alloy elements after smelting copper and filling the furnace with inert gas, opening the undercurrent channel for molten copper alloy to flow into the protecting furnace continuously while replenishing copper liquid, forming cast ingot in the crystallizer and leading out the cast ingot with the casting machine.
Description
Technical field
The present invention relates to the production of Cu-Ti alloy, relate in particular to the method non-vacuum continuous fusion-cast Cu-Ti alloy that adopts undercurrent type technology and inert gas shielding, belong to technical field of nonferrous metal processing.
Background technology
Owing to contain the Ti of 1～4.5wt% in the Cu-Ti alloy, when titanium more than 650 ℃ the time, oxygen can spread in titanium, forms the hard oxide layer of one deck, at nitrogen and titanium more than 700 ℃ violent effect can take place, and forms TiN; If melting in atmosphere, problems such as air-breathing, oxygen uptake, nonmetal inclusion can appear; In addition, in the open type casting process, also easily produce similar problem, influence the performance of material.The tradition fusion-cast Cu-Ti alloy is to carry out in vacuum drying oven.
Yet, there is following problem in the method for vacuum melting Cu-Ti alloy: 1. owing to need very high vacuum in the vacuum drying oven fusion process, sealing requirements to body of heater is very high, can not carry out composition measurement, composition adjustment during melting and pull out operation such as slag, therefore the composition and the impurity content of raw material be had relatively high expectations; 2. vacuum melting generally can not be adopted rapid cooling method, and the crystal alligatoring easily takes place ingot casting, is easy to occur crackle in deformation technique, has reduced the strip yield rate; 3. the discontinuous operation of vacuum drying oven itself makes it can only carry out small-scale production, can not carry out the extensive operation of serialization, has limited its industrialization prospect.
Summary of the invention
The purpose of this invention is to provide a kind of method and device that utilizes undercurrent type electric furnace continuous fusion-cast Cu-Ti alloy, adopt undercurrent type to mend process for copper, chute and smelting furnace are sealed fully, and charge into inert gas, guarantee that melt and air are isolated fully.
Purpose of the present invention is achieved through the following technical solutions:
The production method of non-vacuum continuous fusion-cast Cu-Ti alloy, it is characterized in that: under the inert gas shielding condition, utilize the power frequency cored combined electric furnace of undercurrent type to carry out founding, its device comprises power frequency cored melting furnace, power frequency cored holding furnace, continuous casting machine, communicate by totally enclosed undercurrent type chute between power frequency cored melting furnace and the power frequency cored holding furnace, control closing of totally-enclosed undercurrent type chute by stopper; During production,, close behind the chute in the power frequency cored melting furnace that raw material packed into, add volatile alloying element again after waiting copper to melt substantially, be full of inert gas in the fusion process in the stove at first with the copper alloy for preparing and other trace element oven dry; Open chute after the fusing, copper liquid constantly flows into power frequency cored holding furnace by chute, according to the continuous supplementation with copper liquid of casting speed; Last solution is frozen into ingot casting by the opening of holding furnace furnace wall through crystallizer, draws ingot casting by casting machine.
Further, the production method of above-mentioned non-vacuum continuous fusion-cast Cu-Ti alloy, wherein, chute is totally enclosed undercurrent type chute, chute is positioned at the centre of two stoves and the bottom of close stove.
Again further, the production method of above-mentioned non-vacuum continuous fusion-cast Cu-Ti alloy, wherein, described inert gas is an argon gas.
The outstanding substantive distinguishing features and the obvious improvement of technical solution of the present invention is mainly reflected in:
1. the present invention adopts the method for inert gas shielding to overcome the effect of the air-breathing and alloying element of melt in the fusion process and oxygen, nitrogen, reduces the scaling loss of easy oxidation metals such as titanium;
2. adopt totally enclosed undercurrent type chute to substitute traditional open type chute, overcome be mingled with, defective such as air-breathing, oxidation, can reduce the loss of heat simultaneously, cut down the consumption of energy;
3. realized the continuous production of Cu-Ti alloy, be a kind of energy-conservation, efficiently, Cu-Ti alloy continuous production processes fast.
Description of drawings
Fig. 1 is the structural representation of melting and casting device of the present invention.
The implication of each Reference numeral sees the following form among the figure:
| Reference numeral | Implication | Reference numeral | Implication | Reference numeral | Implication |
| 1 | Bell | 2 | Observation window | 3 | The top air inlet |
| 4 | The quartz sand insulation material | 5 | Power frequency cored smelting furnace | 6 | The refractory material partition wall |
| 7 | Power frequency cored holding furnace | 8 | Observation window | 9 | Chute |
| 10 | Crystallizer | 11 | Ingot casting | 12 | Conticaster |
| 13 | Base support | 14 | Heater |
The specific embodiment
The present invention adopts the method non-vacuum continuous fusion-cast Cu-Ti alloy of undercurrent type technology and inert gas shielding, defective such as air-breathing, slag inclusion that has overcome that the conventional levels continuous casting process occurred in melting, chute and casting process.Adopt inert gas to protect, avoid the effect of oxygen, nitrogen in alloying element and the air, all be filled with protective gas in smelting furnace and the chute.Can feed in raw material at any time by charging aperture in process of production, adjust alloying component.Capital equipment has power frequency cored smelting furnace and power frequency cored holding furnace, and stove is closed, and blanketing with inert gas, communicates by the undercurrent type chute between two stoves, and chute opens and closes by stopper control.Thereby realized the continuous production of Cu-Ti alloy.
Production technology device of the present invention is the power frequency cored combined electric furnace of a kind of undercurrent type, mainly contains power frequency cored melting furnace, power frequency cored holding furnace, continuous casting machine three parts formation.Power frequency cored melting furnace and power frequency cored holding furnace communicate by chute, and chute is totally enclosed undercurrent type chute, and chute is positioned at the centre of two stoves and near the bottom of stove, and closing of stopper control chute arranged.
Main processes is: (1) earlier with the copper alloy and other trace element oven dry that prepare, drops in the melting furnace after closing chute, and some volatile alloying element can be waited until after copper melts substantially and add; All the time be full of inert gas, especially argon gas in the fusion process in the stove; (2) open chute after the fusing, copper liquid flows into holding furnace by chute; (3) solution is frozen into ingot casting by the opening of holding furnace furnace wall through crystallizer, and casting machine is drawn ingot casting; (4) according to casting speed, constantly reinforced melting, supplementation with copper liquid.
Below in conjunction with accompanying drawing technical solution of the present invention is described further.
As shown in Figure 1, the power frequency cored combined electric furnace of undercurrent type of the present invention, comprise: power frequency cored melting furnace 5, power frequency cored holding furnace 7 and continuous casting machine 12, be provided with refractory material partition wall 6 between power frequency cored melting furnace 5 and the power frequency cored holding furnace 7, be provided with totally enclosed undercurrent type chute 9 in the centre of two stoves and near the bottom of stove, power frequency cored melting furnace 5 and power frequency cored holding furnace 7 are communicated, by closing of stopper control chute; Bottom at power frequency cored melting furnace 5 and power frequency cored holding furnace 7 is equipped with heater 14, and the peripheral quartz sand insulation material 4 that coats of stove is provided with observation window 2 and air inlet 3 on melting furnace bell 1, be provided with observation window 8 on the holding furnace bell; The aperture position of holding furnace furnace wall is equipped with crystallizer 10, and is corresponding with conticaster 12.Package unit places on the base support 13.
Embodiment:
Get raw material cathode copper, titanium sponge and copper chromium intermediate alloy respectively, get the material proportioning and see Table 1, prepare and dry; close chute 9; raw material is dropped into 5 li in power frequency cored melting furnace, build observation window 2, open the protection air valve; feed argon gas from top air inlet 3; be full of burner hearth up to protective gas, open heater 14, be heated to fusing; by the time copper melts the volatile alloying element of back adding substantially, and whole heating process can be observed in observation window 2.Also feed argon gas in the power frequency cored holding furnace 7; make it be full of the casting zone as protective gas; open totally enclosed undercurrent type chute 9 behind the metal molten, copper liquid constantly flows into power frequency cored holding furnace 7 by totally enclosed undercurrent type chute 9, and the height of liquid level can be observed by observation window 8.Solution is frozen into ingot casting by the opening of holding furnace furnace wall through crystallizer 10, and casting machine 12 is drawn ingot casting.
It should be noted that melting is a clearance-type, be cast into uninterruptedly and carry out; The reinforced frequency of melting depends on casting speed.During melting, stopper is used for stoping melt to pass through from totally enclosed undercurrent type chute 9; Behind the alloy melting, open chute 9, copper liquid constantly flows into holding furnace 8 by chute 9, according to the continuous supplementation with copper liquid of casting speed; Last solution is frozen into ingot casting by the opening of holding furnace furnace wall through crystallizer 10, draws ingot casting by casting machine 12.
Table 1
| Routine number | The alloying component (wt%) that adds | ||
| Cathode copper | Titanium sponge | Chromiumcopper | |
| 1 | 96 | 3.5 | 1.5 |
| 2 | 95 | 4.5 | 1 |
| 3 | 94 | 5.5 | 0.5 |
The ingot casting that founding is come out, its composition is as shown in table 2.
Table 2
| Routine number | Alloy of ingot composition (wt%) | |||
| Cu | Ti | Cr | O | |
| 1 | 96.1 | 3.35 | 1.43 | 0.006 |
| 2 | 95.5 | 4.31 | 0.97 | 0.005 |
| 3 | 94.3 | 5.26 | 0.48 | 0.007 |
As table 1 and table 2 as can be known, in the present invention's example number 1～3, calculate according to the quality of batching and ingot casting, the burn out rate of copper is respectively: 1.2%, 1.1%, 1.1%.The burn out rate of titanium is respectively: 4.3%, 4.7%, 4.8%.The burn out rate of chromium is 4.2%, 4.1%, 4.2%.The content of oxygen is respectively in the alloying component: 0.006,0.005,0.007.
Obviously, the present invention can obviously reduce the scaling loss of easy oxidation metals such as titanium, has avoided being mingled with, defective such as air-breathing, oxidation, can fall the loss of few heat, has reduced energy consumption; Be a kind of energy-conservation, efficiently, Cu-Ti alloy continuous production processes fast.
More than by specific embodiment technical solution of the present invention has been done to further specify, the example that provides only is an exemplary applications, can not be interpreted as a kind of restriction to claim protection domain of the present invention.
Claims (3)
1. the production method of non-vacuum continuous fusion-cast Cu-Ti alloy, it is characterized in that: under the inert gas shielding condition, utilize the power frequency cored combined electric furnace of undercurrent type to carry out founding, its device comprises power frequency cored melting furnace, power frequency cored holding furnace, continuous casting machine, communicate by totally enclosed undercurrent type chute between power frequency cored melting furnace and the power frequency cored holding furnace, control closing of totally-enclosed undercurrent type chute by stopper; During production,, close behind the chute in the power frequency cored melting furnace that raw material packed into, add volatile alloying element again after waiting copper to melt substantially, be full of inert gas in the fusion process in the stove at first with the copper alloy for preparing and other trace element oven dry; Open chute after the fusing, copper liquid constantly flows into power frequency cored holding furnace by chute, according to the continuous supplementation with copper liquid of casting speed; Last solution is frozen into ingot casting by the opening of holding furnace furnace wall through crystallizer, draws ingot casting by casting machine.
2. the production method of non-vacuum continuous fusion-cast Cu-Ti alloy according to claim 1 is characterized in that: described chute is positioned at the centre of two stoves and near the bottom of stove.
3. the production method of non-vacuum continuous fusion-cast Cu-Ti alloy according to claim 1, it is characterized in that: described inert gas is an argon gas.
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| CN 200610098356 CN1974069A (en) | 2006-12-14 | 2006-12-14 | Production process of non-vacuum continuous fusion-cast Cu-Ti alloy |
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| CN 200610098356 CN1974069A (en) | 2006-12-14 | 2006-12-14 | Production process of non-vacuum continuous fusion-cast Cu-Ti alloy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179496A (en) * | 2011-04-25 | 2011-09-14 | 中信戴卡轮毂制造股份有限公司 | Improved double-chamber heat-preservation furnace |
| CN102689007A (en) * | 2012-05-25 | 2012-09-26 | 浙江天河铜业股份有限公司 | Melting and casting production line with relatively configured copper melting furnace groups |
| CN110218899A (en) * | 2019-06-21 | 2019-09-10 | 灵宝金源朝辉铜业有限公司 | A kind of high strength anti-corrosion Cu-Ti system alloy foil and preparation method thereof |
| CN110453108A (en) * | 2019-08-09 | 2019-11-15 | 西安斯瑞先进铜合金科技有限公司 | A kind of preparation method of antivacuum semicontinuous induction melting aluminium copper-nickel alloy material |
| CN114507792A (en) * | 2022-01-05 | 2022-05-17 | 广东中发摩丹科技有限公司 | Preparation method of copper-titanium alloy large-coil heavy-weight ingot |
-
2006
- 2006-12-14 CN CN 200610098356 patent/CN1974069A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179496A (en) * | 2011-04-25 | 2011-09-14 | 中信戴卡轮毂制造股份有限公司 | Improved double-chamber heat-preservation furnace |
| CN102689007A (en) * | 2012-05-25 | 2012-09-26 | 浙江天河铜业股份有限公司 | Melting and casting production line with relatively configured copper melting furnace groups |
| CN110218899A (en) * | 2019-06-21 | 2019-09-10 | 灵宝金源朝辉铜业有限公司 | A kind of high strength anti-corrosion Cu-Ti system alloy foil and preparation method thereof |
| CN110453108A (en) * | 2019-08-09 | 2019-11-15 | 西安斯瑞先进铜合金科技有限公司 | A kind of preparation method of antivacuum semicontinuous induction melting aluminium copper-nickel alloy material |
| CN114507792A (en) * | 2022-01-05 | 2022-05-17 | 广东中发摩丹科技有限公司 | Preparation method of copper-titanium alloy large-coil heavy-weight ingot |
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