CN103305711A - Steel core high conductivity energy-saving wire production technology - Google Patents
Steel core high conductivity energy-saving wire production technology Download PDFInfo
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- CN103305711A CN103305711A CN2013102958542A CN201310295854A CN103305711A CN 103305711 A CN103305711 A CN 103305711A CN 2013102958542 A CN2013102958542 A CN 2013102958542A CN 201310295854 A CN201310295854 A CN 201310295854A CN 103305711 A CN103305711 A CN 103305711A
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Abstract
A steel core high conductivity energy-saving wire production technology comprises nine steps. In step two, the temperature is controlled to be at 730 DEG C to 760 DEG C, the mass of refining agents occupies 0.1%-0.15% of the total mass of input aluminum ingot, and the refining agents comprise KCl, NaCl and NalAlF6. Middle alloy ingot is aluminum iron alloy ingot or aluminum-silicon alloy ingot or aluminum rear earth, the middle alloy ingot controls iron and silicon content and adjusts proportion of the iron and the silicon. In step three, cerium-rich rear earth is added into aluminum liquid, and the content of cerium (Ce) is controlled to occupy 0.05%-0.2% of the mass of the aluminum liquid. A die of a wire drawing machine is a nanometer die, and the wire diameter of the die is controlled by +/-0.03mm. An inner stranded wire die of a frame winch is a tungsten steel die, an outer stranded wire die is a nanometer die, and the outer diameter shifting of a formed stranded wire is controlled by +/-0.04mm. In step eight, emulsion mainly contains synthesized ester, castor acid succinic acid alcohol amine, emulgator, cleaning agent, mildew-proof corrosion remover and defoamer. Aluminum stranded wires of cables produced by the steel core high conductivity energy-saving wire production technology is excellent in conductivity, the cable forming capability is good, and the conductivity of aluminum single wires can reach 62.1%.
Description
Technical field
The invention belongs to cable technology field, be specifically related to the energy-conservation lead production technique of the high conduction of a kind of steel core.
Background technology
At present, there are shortcomings such as control indexes difficulties such as conductor resistance is big, tensile strength, fluctuation are big mostly in the aluminum stranded conductor of the cable on the domestic market (round aluminum rod) finished product, trace it to its cause, and be that the production technique of aluminum stranded conductor exists defective.
Summary of the invention
In order to overcome above shortcomings part in the prior art, the object of the present invention is to provide a kind of safe and reliable, the energy-conservation lead production technique of the high conduction of the good steel core of practicality.
In order to reach above-mentioned purpose, the present invention adopts following concrete technical scheme:
The energy-conservation lead production technique of the high conduction of steel core may further comprise the steps:
Step 1, aluminium ingot are selected; Adopt spectrum analyser that the aluminium ingot of outsourcing is carried out the composition spectroscopic analysis, make the aluminium ingot performance meet the GB/T1196-2008 standard;
Step 2, aluminium ingot melt: qualified aluminium ingot is dropped in the cupola furnace melt;
Step 3, alloy preparation: in molten aluminum liquid, add intermediate alloy ingot, refining agent, zirconium, boron, rare earth;
Step 4, online magnetic agitation: alloy liquid is carried out magnetic agitation, it is mixed;
Step 5, online degassing and purifying: discharge the gas in the alloy liquid, hydrogen richness control is at 0.10-0.12ml/100g in the alloy liquid;
Step 6, casting: adopt the mode of uphill casting, form aluminium alloy cast ingot;
Step 7, aluminium alloy cast ingot analysis: adopt spectrum analyser that aluminium alloy cast ingot is carried out the composition spectroscopic analysis, target percentage is transferred to recycle bin with underproof aluminium alloy cast ingot;
Step 8, continuous casting and rolling: qualified aluminium alloy cast ingot is inserted aluminium alloy tandem rolling unit roll into aluminium alloy rod, the emulsion lubrication that aluminium alloy tandem rolling unit adopts, finished product aluminium alloy rod adopt to ventilate and are cooled to natural temperature;
Step 9, wire drawing strand system: adopt drawing wire machine that aluminium alloy rod is pulled into required diameter, and on the frame winch stranded stranding; The temperature control of wire drawing oil is below 60 ℃.
In the described step 2, temperature is controlled at 730～760 ℃; The quality of refining agent accounts for the 0.1%-0.15% that drops into the aluminium ingot total mass; The refining agent component comprises KCl, NaCl, NalAlF6.
Described intermediate alloy ingot is ferroaluminium ingot or aluminium-silicon ingots or aluminium rare earth, and intermediate alloy ingot control iron, silicone content are regulated iron, silicon ratio.
In the described step 3, add cerium-rich rare earth in aluminium liquid, control cerium (Ce) content accounts for 0.05%～0.2% of aluminium liquid quality.
In the described step 3, be by in aluminium liquid, adding boride, realizing that the boron quality accounts for the 0.01-0.045% of aluminium liquid quality in the interpolation of boron.
The mould of described drawing wire machine is the nanometer mould, the controlled ± 0.03mm in line footpath; Described frame winch internal layer twisted wire mould is the wolfram steel mould, and outer twisted wire mould is the nanometer mould, and moulding twisted wire external diameter is stirred controlled ± 0.4mm.
Pouring temperature in the described step 8, coolant water temperature is monitored and controlled to temperature of cooling water by online temperature control monitoring device must not be above 40 ℃; Emulsion total pressure control is in that O.10 MPa-O.14MPa, temperature is controlled at 45 ℃ one 65 ℃.
Emulsion main component in the described step 8 is synthetic ester, castor acid Succinic Acid alcohol amide, emulsifying agent, clean-out system, fungusproof anti-corrosion agent, defoamer.
Compared with prior art, the present invention has following outstanding advantage and effect:
The aluminum stranded conductor conductivity excellence of the cable that the present invention produces, the performance of stranding is good; The electric conductivity of aluminium single line can reach 62.1%.
Embodiment
The energy-conservation lead production technique of the high conduction of steel core may further comprise the steps:
Step 1, aluminium ingot are selected; Adopt spectrum analyser that the aluminium ingot of outsourcing is carried out the composition spectroscopic analysis, make the aluminium ingot performance meet the GB/T1196-2008 standard;
Step 2, aluminium ingot melt: qualified aluminium ingot is dropped in the cupola furnace melt;
Step 3, alloy preparation: in molten aluminum liquid, add intermediate alloy ingot, refining agent, zirconium, boron, rare earth;
Step 4, online magnetic agitation: alloy liquid is carried out magnetic agitation, it is mixed;
Step 5, online degassing and purifying: discharge the gas in the alloy liquid, hydrogen richness control is at 0.10-0.12ml/100g in the alloy liquid;
Step 6, casting: adopt the mode of uphill casting, form aluminium alloy cast ingot;
Step 7, aluminium alloy cast ingot analysis: adopt spectrum analyser that aluminium alloy cast ingot is carried out the composition spectroscopic analysis, target percentage is transferred to recycle bin with underproof aluminium alloy cast ingot;
Step 8, continuous casting and rolling: qualified aluminium alloy cast ingot is inserted aluminium alloy tandem rolling unit roll into aluminium alloy rod, the emulsion lubrication that aluminium alloy tandem rolling unit adopts, finished product aluminium alloy rod adopt to ventilate and are cooled to natural temperature;
Step 9, wire drawing strand system: adopt drawing wire machine that aluminium alloy rod is pulled into required diameter, and on the frame winch stranded stranding; The temperature control of wire drawing oil is below 60 ℃.
In the described step 2, temperature is controlled at 730～760 ℃; The quality of refining agent accounts for the 0.1%-0.15% that drops into the aluminium ingot total mass; The refining agent component comprises KCl, NaCl, NalAlF6.
Intermediate alloy ingot is ferroaluminium ingot or aluminium-silicon ingots or aluminium rare earth, and intermediate alloy ingot control iron, silicone content are regulated iron, silicon ratio.
In the described step 3, add cerium-rich rare earth in aluminium liquid, control cerium (Ce) content accounts for 0.05%～0.2% of aluminium liquid quality, is mainly used in improving mechanical property.
In the described step 3, interpolation at boron is by add boride in aluminium liquid, realize that the boron quality accounts for the 0.01-0.045% of aluminium liquid quality, trace element is higher in the primary aluminum, and micro-summations such as vanadium, titanium, manganese, chromium can cause the round aluminum rod conductivity of making to have a strong impact on greater than 0.Ol%, especially vanadium, titanium influence are seriously, must take the rational and effective way to remove, the method that adopts aluminium liquid boronation to handle can reduce round aluminum rod resistivity.The purpose that boronation is handled is to eliminate some micro-deleterious effect in the aluminium.Trace elements such as the vanadium in the aluminium, titanium, manganese, chromium can form sosoloid with aluminium, and the aluminium lattice is distorted.After adding boride, they and boron form insoluble compound and are present in the aluminium, thereby eliminate its solid solution harm, play the effect of crystal grain thinning, specifically react as follows:
6KBF
4+ 3K
2TiF
6+ lOAl one 3TiB
2+ 10AlF
3+ 12KF;
High (TiB2) that reaction generates becomes non-spontaneous nucleation or hinders growing up of existing crystal grain, plays the effect of crystal grain thinning.Aluminium liquor trace element after the 0.01-0.045% boronation is handled obviously reduces, wherein vanadium and titanium reduction amplitude is bigger, and other element variation are little, and round aluminum rod resistivity is also obviously reduced, aluminium liquid boronation is handled and can also be impelled grain refining simultaneously, optimizes the strand crystal structure.
The mould of described drawing wire machine is the nanometer mould, the controlled ± 0.03mm in line footpath; Described frame winch internal layer twisted wire mould is the wolfram steel mould, and outer twisted wire mould is the nanometer mould, and moulding twisted wire external diameter is stirred controlled ± 0.4mm.
Pouring temperature in the described step 8, coolant water temperature is monitored and controlled to temperature of cooling water by online temperature control monitoring device must not be above 40 ℃; Emulsion total pressure control is in that O.10 MPa-O.14MPa, temperature is controlled at 45 ℃ one 65 ℃, makes the tensile strength of round aluminum rod and elongation obtain effective control, has satisfied client's demand.
Emulsion main component in the described step 8 is for multiple synthetic additives such as synthetic ester, castor acid Succinic Acid alcohol amide, emulsifying agent, clean-out system, fungusproof anti-corrosion agent, defoamers, by the synthetic synthesis type full milk cooling lubricant (emulsion) of scientific approach.Emulsifying agent is the milk sap stable key of relying, and it can be adsorbed on and form unimolecular film on the water-oil interface, has to reduce oil water interfacial tension and stop oil droplet and poly-effect, thereby makes milk sap stable.The most important functions of emulsifying agent in emulsion is to have changed oil-water two-phase interfaces tension force, thereby influences particle diameter and the distribution thereof of disperse phase.By concentration of emulsion used, temperature, pH value are detected timely and effectively and control, improve aluminium bar hot continuous rolling process technology, improved the mechanical property of aluminium bar product, make quality product more stable.
It should be noted that at last: above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. the energy-conservation lead production technique of the high conduction of steel core is characterized in that, may further comprise the steps:
Step 1, aluminium ingot are selected; Adopt spectrum analyser that the aluminium ingot of outsourcing is carried out the composition spectroscopic analysis, make the aluminium ingot performance meet the GB/T1196-2008 standard;
Step 2, aluminium ingot melt: qualified aluminium ingot is dropped in the cupola furnace melt;
Step 3, alloy preparation: in molten aluminum liquid, add intermediate alloy ingot, refining agent, zirconium, boron, rare earth;
Step 4, online magnetic agitation: alloy liquid is carried out magnetic agitation, it is mixed;
Step 5, online degassing and purifying: discharge the gas in the alloy liquid, hydrogen richness control is at 0.10-0.12ml/100g in the alloy liquid;
Step 6, casting: adopt the mode of uphill casting, form aluminium alloy cast ingot;
Step 7, aluminium alloy cast ingot analysis: adopt spectrum analyser that aluminium alloy cast ingot is carried out the composition spectroscopic analysis, target percentage is transferred to recycle bin with underproof aluminium alloy cast ingot;
Step 8, continuous casting and rolling: qualified aluminium alloy cast ingot is inserted aluminium alloy tandem rolling unit roll into aluminium alloy rod, the emulsion lubrication that aluminium alloy tandem rolling unit adopts, finished product aluminium alloy rod adopt to ventilate and are cooled to natural temperature;
Step 9, wire drawing strand system: adopt drawing wire machine that aluminium alloy rod is pulled into required diameter, and on the frame winch stranded stranding; The temperature control of wire drawing oil is below 60 ℃.
2. the energy-conservation lead production technique of the high conduction of steel core according to claim 1, it is characterized in that: in the described step 2, temperature is controlled at 730～760 ℃; The quality of refining agent accounts for the 0.1%-0.15% that drops into the aluminium ingot total mass; The refining agent component comprises KCl, NaCl, NalAlF6.
3. the energy-conservation lead production technique of the high conduction of steel core according to claim 1, it is characterized in that: described intermediate alloy ingot is ferroaluminium ingot or aluminium-silicon ingots or aluminium rare earth, intermediate alloy ingot control iron, silicone content are regulated iron, silicon ratio.
4. the energy-conservation lead production technique of the high conduction of steel core according to claim 1 is characterized in that: in the described step 3, add cerium-rich rare earth in aluminium liquid, control cerium (Ce) content and account for 0.05%～0.2% of aluminium liquid quality.
5. the energy-conservation lead production technique of the high conduction of steel core according to claim 1 is characterized in that: in the described step 2, be by adding boride in aluminium liquid, realizing that the boron quality accounts for the 0.01-0.045% of aluminium liquid quality in the interpolation of boron.
6. the energy-conservation lead production technique of the high conduction of steel core according to claim 1, it is characterized in that: the mould of described drawing wire machine is the nanometer mould, the controlled ± 0.03mm in line footpath; Described frame winch internal layer twisted wire mould is the wolfram steel mould, and outer twisted wire mould is the nanometer mould, and moulding twisted wire external diameter is stirred controlled ± 0.4mm.
7. the energy-conservation lead production technique of the high conduction of steel core according to claim 1 is characterized in that: the pouring temperature in the described step 8, coolant water temperature is monitored and controlled to temperature of cooling water by online temperature control monitoring device must not be above 40 ℃; Emulsion total pressure control is O.10MPa-O.14MPa, and temperature is controlled at 45 ℃ one 65 ℃.
8. the energy-conservation lead production technique of the high conduction of steel core according to claim 1, it is characterized in that: the emulsion main component in the described step 8 is synthetic ester, castor acid Succinic Acid alcohol amide, emulsifying agent, clean-out system, fungusproof anti-corrosion agent, defoamer.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862509A (en) * | 2015-05-13 | 2015-08-26 | 江苏亨通电力特种导线有限公司 | Preparation technology of high-conductivity aluminium rod for overhead transmission line |
| CN107904456A (en) * | 2017-10-13 | 2018-04-13 | 新疆众和股份有限公司 | A kind of car quadrat method of high-magnesium aluminum alloy spectrum analysis |
| CN109468478A (en) * | 2018-12-18 | 2019-03-15 | 云南云铝涌鑫铝业有限公司 | A kind of preparation method of aluminium ingot |
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| CN101834012A (en) * | 2010-04-23 | 2010-09-15 | 无锡华能电缆有限公司 | High-conductivity hard aluminum wire and manufacture method thereof |
| JP2011256464A (en) * | 2008-08-11 | 2011-12-22 | Sumitomo Electric Ind Ltd | Aluminum alloy wire |
| CN102682872A (en) * | 2011-03-18 | 2012-09-19 | 上海电缆研究所 | Semihard aluminum wire, overhead wire and preparation method of semihard aluminum wire |
| CN102719709A (en) * | 2012-05-17 | 2012-10-10 | 深圳市兆方创业科技有限公司 | Aluminium alloy wire with high strength and high electrical conductivity, and preparation method thereof |
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Patent Citations (6)
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| JP2011256464A (en) * | 2008-08-11 | 2011-12-22 | Sumitomo Electric Ind Ltd | Aluminum alloy wire |
| JP2012197514A (en) * | 2008-08-11 | 2012-10-18 | Sumitomo Electric Ind Ltd | Aluminum alloy stranded wire |
| JP2013127119A (en) * | 2008-08-11 | 2013-06-27 | Sumitomo Electric Ind Ltd | Aluminum alloy wire |
| CN101834012A (en) * | 2010-04-23 | 2010-09-15 | 无锡华能电缆有限公司 | High-conductivity hard aluminum wire and manufacture method thereof |
| CN102682872A (en) * | 2011-03-18 | 2012-09-19 | 上海电缆研究所 | Semihard aluminum wire, overhead wire and preparation method of semihard aluminum wire |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862509A (en) * | 2015-05-13 | 2015-08-26 | 江苏亨通电力特种导线有限公司 | Preparation technology of high-conductivity aluminium rod for overhead transmission line |
| CN107904456A (en) * | 2017-10-13 | 2018-04-13 | 新疆众和股份有限公司 | A kind of car quadrat method of high-magnesium aluminum alloy spectrum analysis |
| CN109468478A (en) * | 2018-12-18 | 2019-03-15 | 云南云铝涌鑫铝业有限公司 | A kind of preparation method of aluminium ingot |
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| CN103305711B (en) | 2016-09-07 |
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Address after: 317004 Dongfang Road, Taizhou Economic Development Zone, Zhejiang, China Applicant after: ZHEJIANG GENGGU CABLE CO., LTD. Address before: 317004 Dongfang Road, Taizhou Economic Development Zone, Zhejiang, China Applicant before: Zhejiang Gengu Cable Co., Ltd. |
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