CN103131868A - Copper-in-furnace anti-oxidation method for copper product line frequency furnace during period of heat preservation - Google Patents
Copper-in-furnace anti-oxidation method for copper product line frequency furnace during period of heat preservation Download PDFInfo
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- CN103131868A CN103131868A CN201110384380XA CN201110384380A CN103131868A CN 103131868 A CN103131868 A CN 103131868A CN 201110384380X A CN201110384380X A CN 201110384380XA CN 201110384380 A CN201110384380 A CN 201110384380A CN 103131868 A CN103131868 A CN 103131868A
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Abstract
The invention discloses a copper-in-furnace anti-oxidation method for a copper product line frequency furnace during a period of heat preservation. The method includes the following steps: a. first leading copper in the furnace to a low level prior to shutdown, and enabling remaining copper in the furnace to be reduced to the maximum degree; b. removing covering agent on previous copper liquid level; c. covering roasting charcoal with the particle diameter of 1-10mm on copper liquid, with the covering thickness being 80-100mm; e. controlling furnace temperature to be 1,110-1,130 DEG C during the period of heat preservation; and f. adding charcoal and graphite flakes timely to ensure an anti-oxidation effect when the time for heat preservation is over 5 days. According to the method, the anti-oxidation effect of copper liquid in the furnace is obvious. When production is resumed, the oxidation degree of copper in the furnace can be effectively controlled, copper liquid is hardly oxidized, product rejection rate is reduced from 100% to 2-3% when the method is adopted, yield is improved, energy consumption is reduced, and production cycle is shortened.
Description
Technical field
The present invention relates to the anti-oxidation method of metal, be specifically related to the anti-oxidation method of copper in main frequency furnace insulation idling period that copper material produces.
Background technology
Existing high-quality oxygen-free copper rod blank all adopts up-drawing method production, up-drawing method is that a kind of need melt electrolytic copper continuously, the method for casting, comprise that specifically electrolytic copper is fused into copper water, is distracted into the steps such as copper bar base, roll forming by towing mechanism in main frequency furnace, can produce and obtain oxygen level below 30ppm, length can reach the copper bar blank of endless.
Because raw material electrolytic copper price volalility in recent years is large, make the supply of raw material and the sale contradiction aggravation of product, like this in order to reduce business risk, often occur interimly stopping production, copper water occurs be incubated situation to be expected in main frequency furnace, but be incubated the oxidation that is easy to cause copper in stove during waiting to expect, the copper in the rear main frequency furnace that resumes production is almost completely oxidized, give to produce next time and cause very large impact.For this situation, we sum up, develop a kind of in period of immaturity according to needs of production, be incubated in the copper material main frequency furnace and reduce the oxidized method of copper in stove when expecting.
Summary of the invention
The object of the present invention is to provide a kind of interior anti-oxidation method of copper of stove between copper material main frequency furnace soak; After resuming production, the copper of preserving by the method is intact, can be directly used in traction, the subsequent step such as rolling.
The objective of the invention is to realize by following technical measures:
Between a kind of copper material main frequency furnace soak, the anti-oxidation method of copper in stove, is characterized in that, it carries out as follows:
A, before stopping production first with stove in copper cause low level, make that in stove, remaining copper reduces as far as possible;
B, the insulating covering agent on original copper liquid level is removed;
C, the charcoal of particle diameter in the calcination of 1～10mm covered on copper liquid, cladding thickness is 120mm～150mm;
D, more commercially pure graphite phosphorus sheet is covered on above-mentioned charcoal, cladding thickness is at 80mm～100 mm;
Between e, soak, Control for Kiln Temperature is at 1110 ℃-1130 ℃;
F, when soaking time surpasses 5 days, in time add charcoal and graphite phosphorus sheet and make charcoal and graphite reach above-mentioned thickness to guarantee anti-oxidation effect.
Above-mentioned charcoal mainly plays reductive action preventing the oxidation of copper, and above-mentioned graphite mainly plays the oxidation that contacts to prevent copper that isolated air stops oxygen and copper liquid.
In order further to improve copper oxidation-protective effect in main frequency furnace, in above-mentioned a step, copper liquid level in stove is caused towing mechanism lower-most point below 100mm～120mm place.
In order further to improve copper oxidation-protective effect in main frequency furnace, it is the commercially available prod that above-mentioned charcoal particle diameter through calcining is preferably 5～8mm(), and be the charcoal that does not contain the metallic impurity such as iron filings after screening, gravity preparation and magnetic separation, its cladding thickness is preferably 120mm～130mm.
Further preferably, above-mentioned commercially pure graphite phosphorus sheet preferably adopts 3299 graphite phosphorus sheets (for the commercially available prod), and its cladding thickness is at 90mm.
More particularly, a kind of anti-oxidation method of copper in stove between copper material main frequency furnace soak, carry out according to the following steps:
A, before stopping production first with stove in copper liquid height cause 100mm place below the towing mechanism lower-most point;
B, the insulating covering agent on original copper liquid level is removed, and it is clean to be attached to the oxide compound complete liquidation of furnace wall;
C, with annealed charcoal screen, gravity preparation and magnetic separation, make its particle diameter at 5～8mm, and do not contain the impurity such as iron filings; Described charcoal is covered on copper liquid, and cladding thickness is 120mm～130mm;
D, more commercially pure 3299 graphite phosphorus sheets are covered on above-mentioned charcoal, its cladding thickness is 90mm;
Between e, soak, Control for Kiln Temperature between 1110 ℃～1130 ℃, can not make furnace temperature too high;
F, make regular check on, when soaking time surpassed more than 5 days, in time add charcoal and graphite phosphorus sheet to guarantee anti-oxidation effect.
The present invention has following beneficial effect:
Adopt the inventive method, draw copper material production on having solved and be in the oxidized problem of copper in stage main frequency furnace to be expected that is incubated, through practice, in stove, the oxidation-protective effect of liquid copper is remarkable: utilize the inventive method, in stove, the oxidized degree of copper is effectively controlled when again resuming production, the oxidized phenomenon of copper liquid does not almost appear, product rejection rate by original 100% to adopting 2～3%(after the inventive method mainly because of scrapping that the subsequent handlings such as screening cause), improved lumber recovery, reduce energy consumption, shortened the production cycle.
Embodiment
Below by embodiment, the present invention is carried out concrete description; be necessary to be pointed out that at this following examples only are used for the present invention is further illustrated; can not be interpreted as limiting the scope of the invention, the person skilled in the art in this field can make some nonessential improvement and adjustment to the present invention according to the invention described above content.
Embodiment 1
A kind of anti-oxidation method of copper in stove between copper material main frequency furnace soak, carry out according to the following steps:
A, before stopping production first with stove in copper liquid height cause 100mm place below the towing mechanism lower-most point;
B, the insulating covering agent on original copper liquid level is removed, and it is clean to be attached to the oxide compound complete liquidation of furnace wall;
C, with annealed charcoal screen, gravity preparation and magnetic separation, make its particle diameter at 5～8mm, and do not contain the impurity such as iron filings; Described charcoal is covered on copper liquid, and cladding thickness is 120mm;
D, more commercially pure 3299 graphite phosphorus sheets are covered on above-mentioned charcoal, its cladding thickness is 90mm;
Between e, soak, Control for Kiln Temperature between 1110 ℃～1130 ℃, can not make furnace temperature too high;
F, make regular check on, when soaking time surpassed more than 5 days, in time add charcoal and graphite phosphorus sheet and make charcoal and graphite reach above-mentioned thickness to guarantee anti-oxidation effect.
Stopping production is resumed production be incubated for two weeks in main frequency furnace after, in main frequency furnace copper intact, there is no oxidized phenomenon, be directly used in traction, the subsequent step such as rolling.
Embodiment 2
A kind of anti-oxidation method of copper in stove between copper material main frequency furnace soak, it carries out as follows:
A, before stopping production first with stove in copper cause 50mm place below the towing mechanism lower-most point, the interior remaining copper of stove is reduced as far as possible;
B, the insulating covering agent on original copper liquid level is removed;
C, the charcoal of particle diameter in the calcination of 8～10mm covered on copper liquid, cladding thickness is 150mm;
D, more commercially pure graphite phosphorus sheet is covered on above-mentioned charcoal, cladding thickness is at 80mm;
Between e, soak, Control for Kiln Temperature is at 1110 ℃-1130 ℃;
F, when soaking time surpasses 5 days, in time add charcoal and graphite phosphorus sheet and make charcoal and graphite reach above-mentioned thickness to guarantee anti-oxidation effect.
Stopping production is resumed production be incubated a week in main frequency furnace after, and in main frequency furnace, copper is preserved better, only has the copper of 1% left and right oxidized.
Embodiment 3
A kind of anti-oxidation method of copper in stove between copper material main frequency furnace soak, it carries out as follows:
A, before stopping production first with stove in copper cause 120mm place below the towing mechanism lower-most point, the interior remaining copper of stove is reduced as far as possible;
B, the insulating covering agent on original copper liquid level is removed, and it is clean to be attached to the oxide compound complete liquidation of furnace wall;
C, the charcoal of particle diameter in the calcination of 1～10mm covered on copper liquid, cladding thickness is 120mm～150mm;
D, more commercially pure graphite phosphorus sheet is covered on above-mentioned charcoal, cladding thickness is at 80mm～100 mm;
Between e, soak, Control for Kiln Temperature is at 1110 ℃-1130 ℃;
F, when soaking time surpasses 5 days, in time add charcoal and graphite phosphorus sheet and make charcoal and graphite reach above-mentioned thickness to guarantee anti-oxidation effect.
Stopping production is resumed production be incubated for two weeks in main frequency furnace after, in main frequency furnace copper intact, there is no oxidized phenomenon, be directly used in traction, the subsequent step such as rolling.
Claims (5)
1. the anti-oxidation method of copper in stove between a copper material main frequency furnace soak, is characterized in that, it carries out as follows:
A, before stopping production first with stove in copper cause low level, make that in stove, remaining copper reduces as far as possible;
B, the insulating covering agent on original copper liquid level is removed;
C, the charcoal of particle diameter in the calcination of 1～10mm covered on copper liquid, cladding thickness is 120mm～150mm;
D, more commercially pure graphite phosphorus sheet is covered on above-mentioned charcoal, cladding thickness is at 80mm～100 mm;
Between e, soak, Control for Kiln Temperature is at 1110 ℃-1130 ℃;
F, when soaking time surpasses 5 days, in time add charcoal and graphite phosphorus sheet to guarantee anti-oxidation effect.
2. the method for claim 1 is characterized in that: in described a step, copper liquid level in stove is caused towing mechanism lower-most point below 100mm～120mm place.
3. method as claimed in claim 1 or 2 is characterized in that: described charcoal particle diameter through calcining is preferably 5～8mm, and is the charcoal that does not contain the metallic impurity such as iron filings after screening, gravity preparation and magnetic separation, and its cladding thickness is approximately 120mm～130mm.
4. method as described in claim 1～3 any one, it is characterized in that: described commercially pure graphite phosphorus sheet preferably adopts 3299 graphite phosphorus sheets, and its cladding thickness is at 90mm.
5. the method for claim 1 is characterized in that: carry out according to the following steps:
A, before stopping production first with stove in copper liquid height cause 100mm place below the towing mechanism lower-most point;
B, the insulating covering agent on original copper liquid level is removed, and it is clean to be attached to the oxide compound complete liquidation of furnace wall;
C, with annealed charcoal screen, gravity preparation and magnetic separation, make its particle diameter at 5～8mm, and do not contain the impurity such as iron filings; Described charcoal is covered on copper liquid, and cladding thickness is 120mm～130mm;
D, more commercially pure 3299 graphite phosphorus sheets are covered on above-mentioned charcoal, its cladding thickness is 90mm;
Between e, soak, Control for Kiln Temperature between 1110 ℃～1130 ℃, can not make furnace temperature too high;
F, make regular check on, when soaking time surpassed more than 5 days, in time add charcoal and graphite phosphorus sheet to guarantee anti-oxidation effect.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772442A (en) * | 2015-04-27 | 2015-07-15 | 安徽众源新材料股份有限公司 | Copper melting and casting process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101515494A (en) * | 2008-02-20 | 2009-08-26 | 江阴市爱多伏科技有限公司 | Method for preparing continuous extrusion high-tech energy-saving copper bus |
| CN101708510A (en) * | 2009-12-03 | 2010-05-19 | 绍兴市力博电气有限公司 | Processing technology for processing high-purity high-conductivity oxygen-free copper bar |
| CN101719527A (en) * | 2009-12-03 | 2010-06-02 | 绍兴市力博电气有限公司 | Production technique of copper strips for solar modules |
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- 2011-11-28 CN CN201110384380XA patent/CN103131868A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101515494A (en) * | 2008-02-20 | 2009-08-26 | 江阴市爱多伏科技有限公司 | Method for preparing continuous extrusion high-tech energy-saving copper bus |
| CN101708510A (en) * | 2009-12-03 | 2010-05-19 | 绍兴市力博电气有限公司 | Processing technology for processing high-purity high-conductivity oxygen-free copper bar |
| CN101719527A (en) * | 2009-12-03 | 2010-06-02 | 绍兴市力博电气有限公司 | Production technique of copper strips for solar modules |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772442A (en) * | 2015-04-27 | 2015-07-15 | 安徽众源新材料股份有限公司 | Copper melting and casting process |
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Application publication date: 20130605 |