CN104942243A - Manufacturing method for copper-iron compound alloy - Google Patents
Manufacturing method for copper-iron compound alloy Download PDFInfo
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- CN104942243A CN104942243A CN201510296095.0A CN201510296095A CN104942243A CN 104942243 A CN104942243 A CN 104942243A CN 201510296095 A CN201510296095 A CN 201510296095A CN 104942243 A CN104942243 A CN 104942243A
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- copper
- iron
- melted
- manufacture method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/02—Casting compound ingots of two or more different metals in the molten state, i.e. integrally cast
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
Abstract
The invention provides a manufacturing method for copper-iron compound alloy. The method comprises the steps that 1, the melting process of copper with high quality in an electric furnace is conducted, the copper with high quality is melted, degassing operation is conducted on the melted copper, and melted copper liquid is formed; 2, the melting process of iron with high quality in an electric furnace is conducted, the iron with high quality is melted, degassing operation is conducted on the melted iron, and melted iron liquid is formed; 3, the mixing process of the melted copper liquid and the melted iron liquid is conducted, and the melted copper liquid and the melted iron liquid are mixed to form mixed melted liquid; 4, the cooling process is conducted, and the mixed melted liquid is injected into a mold to form a casting block. According to the manufacturing method for the copper-iron compound alloy, copper materials and iron materials are melted respectively, and then mixing of the melted materials is conducted. Therefore, compared with the prior art, the dispersion effect is better, and iron grains are distributed in copper grains more evenly. In addition, due to the fact that melting and degassing are conducted under high pressure, and the degassing operation is conducted on the two materials respectively, so that the degassing effect is better.
Description
Technical field
The present invention relates to a kind of manufacture method of copper ferrum composite alloy, belong to metal smelt field.
Background technology
Copper-iron alloy is a kind of new material, and the shortcoming of current alloy manufacturing methods is, (normal pressure 1atm) carries out under normal atmospheric pressures an, and the ductility of the iron and steel composite alloy obtained is not good, and electromagnetic shielding effect is also unstable.
Summary of the invention
The object of the present invention is to provide a kind of manufacture method of copper matrix composite alloy, to solve the problem.
Present invention employs following technical scheme,
A manufacture method for copper ferrum composite alloy, is characterized in that, comprises the following steps:
Step one, high-quality copper melt operation in electric stove, are melted by high-quality copper, and carry out degassed gymnastics work, form the molten soup of copper;
The operation that step 2, high-quality iron melt on electric stove, melts high-quality iron, and carries out degassed gymnastics work, forms the molten soup of iron;
The mixed processes of the molten soup of step 3, copper and iron, is mixed to form the molten soup of mixing by the molten soup of copper and iron;
Step 4, refrigerating work procedure, will mix molten soup and inject mould formation ingot bar.
Preferably, in step one or step 2, de-gas-operated comprises the step of carrying out dehydrogenation.
Preferably, when carrying out the step of dehydrogenation, partial pressure of oxygen remains on the scope of 1.5atm ~ 3atm.
Preferably, when carrying out the step of dehydrogenation, temperature adjusts to more than the fusing point of copper or iron 50 DEG C ~ 100 DEG C.
Preferably, after completing the step of dehydrogenation, carry out deoxygenation step, use the monomers such as Ca, Si, Mn, P, Al, Ti, Li or complex to carry out deoxidation as deoxidier.
Preferably, in refrigerating work procedure, the speed of the method controlled cooling model that cooling rapidly, normal temperature cooling or heating cool will be passed through after molten for mixing soup injection mould.
Preferably, the temperature decrease speed * 2 of reduction of speed degree≤normal temperature cooling at the temperature cooled rapidly, temperature decrease speed/2 of reduction of speed degree≤normal temperature cooling at the temperature of heating cooling.
Preferably, in step one, step 2 or step 3, add the trace element with effectiveness of scheduled volume.
The beneficial effect of the invention
According to the manufacture method of copper matrix composite alloy of the present invention, owing to being copper product and iron material are dissolved respectively, then mix, therefore compared with the conventional method, have better dispersion effect, iron crystal grain distributes more even in copper crystal grain.
In addition, because the present invention under high pressure carries out melting dehydrogenation, and be the operation that two kinds of raw materials carry out respectively except gas, the effect therefore removing gas is better.
Detailed description of the invention
Manufacture process
Step one, high-quality copper to be dissolved in electric stove.The copper generally purity being greater than 99.9% is referred to as high-quality copper.Broken copper sheet is put in electrical equipment stove and stir, more than temperature increase to the fusing point (810.24k) of copper, after fusing, carry out deoxidation operation.
(1) in order to dehydrogenation, oxygen partial pressure is transferred to a high position, the scope of oxygen partial pressure: 1.5atm ~ 3atm.Keep temperature to adjust to more than the fusing point of copper 50 DEG C ~ 100 DEG C, the oxygen element dissolved on copper is increased, and the separating hydrogen gas of phase rule, carries out dehydrogenating technology with this simultaneously.Phase rule herein refers to that phase (balance) is restrained, and English is phase rule.Be exactly once the amount of words hydrogen that the content of oxygen increases can automatically reduce herein specifically.
(2) deoxidier strong with combination with oxygen power is used during deoxidation.Deoxidier can use such as: the monomers such as Ca, Si, Mn, P, Al, Ti, Li or complex, or with the complexing agent of other various metals.Period, in order to prevent hydrogen and oxygen from returning original state, pour into a large amount of inert gases at melting furnace noodle soup.While use deoxidier, use the dregs of the material that oxidation occurs except the set of dregs auxiliary agent, and be separated from molten soup.The low-melting compound of the mineral of Ca, Mg system is adopted except dregs auxiliary agent.
(3), during high-quality dissolved ferric iron, in order to prevent causing fusing point to change because stove material element is mixed into or occurs mixing change, ex ante analysis is answered to manufacture the impurity oil content of metal and select the stove material that impurity element amount is few.
The operation that step 2, high-quality iron dissolve on electric stove.
Get the iron plate that high-test metal is pulverized, refer to stir the iron that purity is greater than 99.9% in electric stove, more than temperature increase to the fusing point (1261.84k) of iron, after fusing, situation is as follows:
Use during deoxidation, the compound deoxidier strong with combination with oxygen power.Such as: Ca, Si, Mn, P, Al, Ti, monomer or the complex such as Li, or with polymetallic complexing agent.Period, in order to prevent hydrogen and oxygen from returning original state, pour into a large amount of inert gases at stove noodle soup.When also having use deoxidier, use except dregs auxiliary agent, gather the dregs that oxide occurs, and be separated from soup.The low-melting compound of the mineral of Ca, Mg system is adopted except dregs auxiliary agent.
Further, during the fusing of high-quality iron, in order to prevent causing fusing point to change because stove material element is mixed into or occurs mixing change, equipment analysis can be shifted to an earlier date and manufacture the impurity oil content of metal and select suitable stove material.
The hybrid technique of the molten soup of step 3, high-quality copper and high-quality iron
In order to mix high-quality copper in respective stove and high-quality iron, according to blending ratio needed for ingot bar, under preventing air to be involved in situation, be injected in the electric stove of mixing.In ingot bar, the content range of each component is as follows: copper exists: 1 ~ 99%; Iron: 1 ~ 99%; Other trace element: less than 1%.
The solution be injected into for benchmark heats up, promotes crystallization with the melt temperature of high-quality iron.Put into the solubility of iron in copper, from double equilibrium diagram, be about 2%, so become supersaturation composition state, become grow up to intermetallic compound, concentration and copper liquid phase seemingly, so produce little shape in the liquid of copper.This shape has the granular flat that also has, and as dispersion concentration is high, become grume, viscosity rises.
The technique of step 4, injection mold
By in step 3, the situation that viscosity rises regards as the benchmark that reaction terminates, and injects the opportunity of mould.
When solution in casting mould solidifies, in order to the setting-time control, usually use normal temperature cooling, force to cool rapidly, the methods such as heating and temperature control cooling.Meanwhile, by normal temperature cooling, force chilling but, heating and temperature control cools 3 kinds of cooling means and can also control crystal grain and mangcorn.The fireballing words that temperature declines, crystal grain, mangcorn are just little; The slow-footed words that temperature declines, crystal grain, mangcorn are just large.Therefore the grain size number cooled rapidly is little, and the grain size number of normal temperature cooling is moderate, and the granularity of heating cooling is large.Thus be made grain size number and the growth encourage gumminess crystalline substance that material is stretched in applicable exhibition.Grain size number size may be used to stretch material.Grain size number is large, and material is comparatively easy to stretch; Grain size number is little, and the shield effectiveness of material is larger.The grain size number being adapted to the material of other types cools by normal temperature the crystal grain obtained.Note soup temperature with the solution temperature 1261.84k of high-quality iron for benchmark.
The said speed cooling rapidly and heat cooling of the present invention, be compared with normal temperature cooling velocity under and the relative velocity obtained.
Cool rapidly: the temperature decrease speed * 2 of reduction of speed degree≤normal temperature cooling at the temperature cooled rapidly
Heating cooling: temperature decrease speed/2 of reduction of speed degree≤normal temperature cooling at the temperature of heating cooling
Namely, suppose to be cooled to normal temperature from 1500 DEG C, it is 50 seconds that normal temperature cools the time used, then the cool time cooled rapidly should be less than 25 seconds, and the time of heating cooling should more than 100 seconds.
Below the mould and the adoptable type of cooling that use:
Cool with the normal temperature of sand mo(u)ld, operating condition: use the mold that the sand with cooling performance is made.
With normal temperature cooling or the cold water pressure chilling of metal die.Operating condition: use the metal die that metal is made.
Metal die is with controlling the cooling of heating-up temperature method, operating condition: heated metal die by electricity or natural gas.
The hammer welding process of ingot bar
On the ingot bar manufactured after inside and outside homogeneous heating, be in and partly dissolve forging welding state, thus make crystal grain produce directionality, the purposes of applicable stretching property of exhibition material.In addition as one of object, be the bubble of inside is extruded bond with pressure.
Heating furnace between 700 ~ 800 DEG C bonds with forging device pressure after inner homogeneous heating.
Operation is stretched in the exhibition of ingot bar
The ingot bar manufactured is between 700-800 DEG C or after normal temperature exhibition is stretched, make secondary, the example of three products is as follows:
Ingot bar is cast between 700-800 degree, is made pole material, square bar.
Between heat after the calendering of (700-800 degree) roller, then normal temperature calendering bracing wire is carried out repeatedly, extracts the fine rule of footpath 0.1-0.05mm out.
In addition, for improving the electromagnetic shielding effect of material further, the present invention can also add the trace element with shield effectiveness known at present such as cobalt, chromium, tungsten, nickel.Interpolation opportunity: can be mixed into when initial dissolved copper; Can be mixed into when initial dissolved iron; Add in the process that also can mix at copper and iron.
The copper-iron alloy that preparation method of the present invention obtains, seldom, the eutectic having the alloy of the trace element of electromagnetic shielding effect to produce and the tiny crystals of copper base ferro element and interpolation trace disperse mixed type for impurity and gas componant.
In addition, the present invention has the feature of complete degassing process.In molten soup, gas componant exists with bubble regime in process of setting, stretches material can reduce its value as exhibition.
Claims (8)
1. a manufacture method for copper ferrum composite alloy, is characterized in that, comprises the following steps:
Step one, high-quality copper melt operation in electric stove, are melted by high-quality copper, and carry out degassed gymnastics work, form the molten soup of copper;
The operation that step 2, high-quality iron melt on electric stove, melts high-quality iron, and carries out degassed gymnastics work, forms the molten soup of iron;
The mixed processes of the molten soup of step 3, copper and iron, is mixed to form the molten soup of mixing by the molten soup of copper and iron;
Step 4, refrigerating work procedure, inject mould by molten for described mixing soup and form ingot bar.
2. the manufacture method of copper ferrum composite alloy according to claim 1, is characterized in that:
Wherein, in described step one or described step 2, described de-gas-operated comprises the step of carrying out dehydrogenation.
3. the manufacture method of copper ferrum composite alloy according to claim 2, is characterized in that:
When carrying out the step of described dehydrogenation, partial pressure of oxygen remains on the scope of 1.5atm ~ 3atm.
4. the manufacture method of copper ferrum composite alloy according to claim 2, is characterized in that:
Wherein, when carrying out the step of described dehydrogenation, temperature adjusts to more than the fusing point of copper or iron 50 DEG C ~ 100 DEG C.
5. the manufacture method of copper ferrum composite alloy according to claim 2, is characterized in that:
Wherein, after completing the step of dehydrogenation, carry out deoxygenation step, use the monomers such as Ca, Si, Mn, P, Al, Ti, Li or complex to carry out deoxidation as deoxidier.
6. the manufacture method of copper ferrum composite alloy according to claim 1, is characterized in that:
Wherein, in described refrigerating work procedure, cool by after molten for described mixing soup injection mould by cooling rapidly, normal temperature or heat the speed of the method controlled cooling model cooled.
7. the manufacture method of copper-iron alloy according to claim 6, is characterized in that:
Wherein, the temperature decrease speed * 2 of reduction of speed degree≤normal temperature cooling at the described temperature cooled rapidly,
Temperature decrease speed/2 of reduction of speed degree≤normal temperature cooling at the temperature of described heating cooling.
8. the manufacture method of copper-iron alloy according to claim 1, is characterized in that:
Wherein, in step one, step 2 or step 3, add the trace element with effectiveness of scheduled volume.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296095.0A CN104942243A (en) | 2015-06-02 | 2015-06-02 | Manufacturing method for copper-iron compound alloy |
| PCT/CN2015/089089 WO2016192226A1 (en) | 2015-06-02 | 2015-09-07 | Manufacturing method of copper and iron composite alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296095.0A CN104942243A (en) | 2015-06-02 | 2015-06-02 | Manufacturing method for copper-iron compound alloy |
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| CN104942243A true CN104942243A (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510296095.0A Pending CN104942243A (en) | 2015-06-02 | 2015-06-02 | Manufacturing method for copper-iron compound alloy |
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| CN (1) | CN104942243A (en) |
| WO (1) | WO2016192226A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105671556A (en) * | 2016-01-30 | 2016-06-15 | 淄博华鸣炭素材料有限公司 | High-purity carbon deoxidizing agent |
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| CN86106682A (en) * | 1986-10-11 | 1988-04-20 | 机械工业部沈阳铸造研究所 | White cast-iron and cast steel bimetal composite casting |
| CN1575214A (en) * | 2001-10-23 | 2005-02-02 | 阿尔科公司 | Simultaneous multi-alloy casting |
| CN101724798A (en) * | 2009-12-22 | 2010-06-09 | 浙江大学 | Multiplex heat treatment method for Cu-12 percent Fe alloy |
| US20130248133A1 (en) * | 2008-05-21 | 2013-09-26 | Alcoa Inc. | Method of producing ingot with variable composition using planar solidification |
| JP2015093311A (en) * | 2013-11-13 | 2015-05-18 | 巌 中島 | Manufacturing method of eutectic copper-iron alloy |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101428305B (en) * | 2007-11-05 | 2012-02-08 | 江苏鸿尔有色合金实业有限公司 | Process for manufacturing copper iron alloy plate (row, stick, tube) |
| JP2012035287A (en) * | 2010-08-05 | 2012-02-23 | Aitekku Corporation:Kk | Method and device for manufacturing copper iron-based alloy cast slab |
| KR101029558B1 (en) * | 2010-08-11 | 2011-04-15 | 히로시 엔도 | Method for producing copper-iron alloy cast piece |
| CN102294462A (en) * | 2011-09-26 | 2011-12-28 | 重庆理工大学 | Quick solidification preparation method of copper iron alloy material |
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2015
- 2015-06-02 CN CN201510296095.0A patent/CN104942243A/en active Pending
- 2015-09-07 WO PCT/CN2015/089089 patent/WO2016192226A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106682A (en) * | 1986-10-11 | 1988-04-20 | 机械工业部沈阳铸造研究所 | White cast-iron and cast steel bimetal composite casting |
| CN1575214A (en) * | 2001-10-23 | 2005-02-02 | 阿尔科公司 | Simultaneous multi-alloy casting |
| US20130248133A1 (en) * | 2008-05-21 | 2013-09-26 | Alcoa Inc. | Method of producing ingot with variable composition using planar solidification |
| CN101724798A (en) * | 2009-12-22 | 2010-06-09 | 浙江大学 | Multiplex heat treatment method for Cu-12 percent Fe alloy |
| JP2015093311A (en) * | 2013-11-13 | 2015-05-18 | 巌 中島 | Manufacturing method of eutectic copper-iron alloy |
Non-Patent Citations (1)
| Title |
|---|
| 柳世铭: "Cu-Fe合金铸态组织演变的实验研究", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105671556A (en) * | 2016-01-30 | 2016-06-15 | 淄博华鸣炭素材料有限公司 | High-purity carbon deoxidizing agent |
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| WO2016192226A1 (en) | 2016-12-08 |
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