CN103531302B - A kind of technique adopting welding cladding process to produce hard state copper covered steel wire - Google Patents
A kind of technique adopting welding cladding process to produce hard state copper covered steel wire Download PDFInfo
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Abstract
The present invention relates to a kind of production technology of copper covered steel wire.Adopt welding cladding process to produce the technique of hard state copper covered steel wire, comprise the following steps: drawing, lonneal, pickling, washing successively, neutralize, dry up, align and eliminate rust, clad welded, Dan La, Lian La, water tank wire drawing, passivation, with surperficial line flaw detection checkout gear, on-line checkingi and take-up sabot are carried out to copper covered steel.The advantage that above-mentioned employing welding cladding process produces the technique of hard state copper covered steel wire is that production cost is low, and production process safety and environmental protection, the copper covered steel wire steady quality rate of finished products of production is high.
Description
Technical field
The present invention relates to a kind of production technology of copper covered steel wire.
Background technology
Copper covered steel wire take steel wire as core body, covers the composite wire of one deck copper in its surface, and being mainly used in communication and electron trade, is the regeneration product of communications cable proprietary material.This product has the tensile strength of steel and toughness, the electric conductivity of copper and high frequency characteristics, and has advantages such as saving copper material, reduce costs.It has the advantage of copper and steel concurrently, and in certain high-frequency range, its resistance value is equal with pure copper wire, but tensile strength can be several times of fine copper.In communication telecommunication, copper covered steel wire and copper cash have same conductivity, but because copper covered steel wire mechanical strength is good, quality is light, without creep, stands to obtain the attack of the snow ice bud that blows, stand large span, salt fog and perishable environment, so reduce distortion, the distortion of transmission information, improve transmission quality, reduce cost.
The difference of copper covered steel wire use occasion is divided into soft state copper covered steel wire and hard state copper covered steel wire, soft state copper covered steel wire requires low for tension, elongation requires high occasion, and hard state copper covered steel wire requires high for tensile strength, requires low occasion to elongation.At present, the method for producing hard copper Baogang both at home and abroad mainly contains welding cladding process, galvanoplastic, dip coating.It is high that traditional welding cladding process has cost, the shortcoming such as occur layers of copper fracture in drawing process and copper covered steel brittle failure phenomenon is serious; It is high that galvanoplastic have energy consumption, and environmental pollution is serious, is not suitable for producing the shortcomings such as high conductivity product; It is large that dip coating has equipment investment, and crystallization difficulty controls, the uneven copper covered steel quality that causes of copper layer thickness is difficult to ensure the shortcomings such as card, production cost are high.
Summary of the invention
The object of the invention is to overcome the problems such as the finished product rate existed in the hard state copper covered steel wire technique of tradition is low, production cost is high, environmental pollution is serious, disclose a kind of production technology environmental protection, production cost is low, the copper covered steel wire rate of finished products of producing is high, and conductance and the good employing welding cladding process of tensile strength produce the technique of hard state copper covered steel wire.
In order to realize foregoing invention object, the present invention adopts following technical scheme:
Adopt welding cladding process to produce a technique for hard state copper covered steel wire, comprise the following steps: successively
(1) drawing, is pulled to wire diameter 8.0-8.6mm by the steel wire of wire diameter 9.0-10.0mm;
(2) lonneal, puts into vacuum tempering furnace by the steel wire after drawing and carries out Low Temperature Heat Treatment, temperature 420-500 DEG C, heating time 1-2 hour, temperature retention time 5.5-6.5 hour; Then first power-off cools 3 hours with stove, then opens air-cooler and be cooled to about 260 DEG C and come out of the stove; Eliminate the work hardening of steel wire, improve plasticity, be beneficial to following process; Make the lubricating fluid remaining in Steel Wire Surface in last process form loose scale through high temperature carbonization simultaneously, be easy to follow-up pickling scale removal;
(3) pickling, removes the oxide skin of Steel Wire Surface;
(4) wash, remove the acid of Steel Wire Surface attachment;
(5) neutralize, remove the acid of washing rear surface remnants, when preventing steel wire from depositing, surface is corroded;
(6) dry up, remove the moisture that Steel Wire Surface is residual, prevent steel wire resting period length from easily causing getting rusty;
(7) align and eliminate rust, steel wire is equipped with several brushing machine to wire brush carries out bristle rust cleaning by entering after aligning wheel aligning;
(8) clad welded, first polishes to the steel wire after rust cleaning, simultaneously by copper strips bristle, while thoroughly removing steel wire and copper strip surface greasy dirt and oxide-film, increases the roughness of steel wire and copper strip surface, the adhesion of raising steel wire and copper strips; Then send in laminating case by copper strips and steel, in laminating case, vertical forming wheel and horizontal form wheel make copper strips be coated on Steel Wire Surface uniformly, pass into nitrogen, guarantee that two kinds of metal materials are not oxidized in laminating process in laminating case by air inlet simultaneously; Then weld zone is entered, welding gun place, weld zone argon gas is as protection gas, continuously weld with the weld seam of pulsed tungsten argon arc welding by metal material, cooling zone is entered after welding, cooling zone passes into nitrogen as protection gas, prevent the metal surface of welding rear high temperature oxidized, be finally wrapped on reel; Coated complete after, copper covered steel wire diameter is 10mm; In conventional bag overgrowth product, in laminating case and cooling zone all uses argon gas as protection gas, because consumption gas cost argon gas is 4 times of nitrogen, therefore passes into different protective gas by segmentation, effectively can reduce production cost, and can not affect welding and coated quality; Simultaneously, though argon gas itself is nontoxic, but there is smothering action when high concentration, when argon concentration in air higher than 33% time just have the danger suffocated, when argon concentration is more than 50%, there is serious symptoms, when concentration reaches more than 75%, can be dead in several minutes, liquid argon can hinder skin, and eye contact can cause inflammation; And nitrogen gas concn more than 80% time just there will be ill symptoms, when concentration is more than 90%, just can causes and suffocate, therefore therefore by segmentation pass into different protective gas, production safety and environmental protection more can be made;
(9) singly draw, copper covered steel recombination line after coated is sent into single machine drawing by pay off rack and directive wheel, after two groups of wire-drawing dies, copper covered steel recombination line being pulled to wire diameter is 8mm, singly be pulled through in journey, wire diameter compression ratio is 19-21%, and the wire drawing dish in the unwrapping wire position of pay off rack, directive wheel and single machine drawing is maintained at the same horizontal plane; Often organize point four intervals in wire-drawing die aperture, be respectively lubrication district, service area, sizing area and outlet area, lubrication district and service area are level and smooth arc transition, and sizing area and this tangential; After being covered to complete, certain space is there is between steel wire and copper strips, copper covered steel easily occurs that bending causes layers of copper fracture in follow-up drawing, therefore unwrapping wire position, directive wheel, wire drawing dish are maintained at the same horizontal plane, copper covered steel keeps certain inlet wire radian before entering wire drawing machine, thus the layers of copper preventing copper covered steel from causing because inlet wire bends fracture; Traditional coated-drawing process in single machine drawing only installs a wire-drawing die, adopts and singly draw for twice, therefore, easily cause surface to be damaged, surface smoothness is difficult to guarantee simultaneously.Lubricate in traditional wire-drawing die between district and service area, between service area and sizing area and have certain angle, powdered lubricant in lubrication district is difficult to enter service area, and come off by the corner that the wire drawing powder sticking to copper covered steel wire surface behind lubrication district easily enters service area at copper covered steel wire, thus affect the lubrification on copper covered steel wire surface, cause it to be easily pulled off in service area and sizing area; Lubrication district and service area are designed to level and smooth arc transition, sizing area and this tangential by the wire-drawing die in the present invention, thus eliminate the turning between subregion, and the wire drawing powder in district easy to lubricate enters service area;
(10) even draw, even draw equipment to carry out drawing the copper covered steel feeding after singly drawing, draw twice continuously, wire diameter is pulled to 3.85-3.8mm for the first time, and second time wire diameter is pulled to 1.85-1.8mm; In each drawing process, the compression ratio of per pass mould controls at 20-26%, and requires that the difference of adjacent twice compression ratio higher than 10%, otherwise easily must not break in drawing process;
(11) water tank wire drawing, with wire drawing machine, copper covered steel is pulled to wire diameter 1.65-0.8mm, tensile strength can reach 880MPa-920MPa in tensile strength, elongation 2%-4%, properties meets even higher than the requirement of industry standard SJ/T 11411-2010 copper covered steel wire standard, wire drawing machine can reduce back skating coefficient, prevents surface tear, improves product surface fineness;
(12) passivation, copper covered steel drawing completed carries out surface passivation, prevents Steel Wire Surface to be oxidized;
(13) with surperficial line flaw detection checkout gear, on-line checkingi is carried out to copper covered steel, if detect that layers of copper comes off or scratches, after autostop, layers of copper to be come off or scuffing part is cut, then get up with to welding weldering, polishing weld with file again, joint is electroplated complement plated in complement plated groove, continuing carrying out flaw detection after complement plated until by detecting;
(14) take-up sabot, obtains hard state copper covered steel wire finished product, and the conductance of copper covered steel wire finished product is 21-40%;
Above-mentioned surperficial line flaw detection checkout gear comprises installing rack, incoming wire guide wheel, inlet wire bar, outgoing line guide wheel, outlet rod, probe mounting rod, detection probe, the anti-interference protective sleeve of probe, controller and alarm; Installing rack is made up of mount pad and mounting panel fixed thereon, inlet wire bar, outlet rod and probe mounting rod bottom are installed on mounting panel, incoming wire guide wheel by inlet wire bar Height Adjustable be movably arranged on mounting panel, outgoing line guide wheel by outlet rod Height Adjustable be movably arranged on mounting panel, detection probe be in probe anti-interference protective sleeve in, anti-interference protective sleeve of popping one's head in by probe mounting rod Height Adjustable be movably arranged on mounting panel; Detection probe and the anti-interference protective sleeve of probe are provided with the concentric cable-through hole passed for copper covered steel wire, anti-interference protective sleeve and the interior detection probe thereof of popping one's head in is between incoming wire guide wheel and outgoing line guide wheel, on the top of incoming wire guide wheel, detection probe and the anti-interference protective sleeve of probe, the top of cable-through hole and outgoing line guide wheel is on same level straight line, copper covered steel wire detected probe is be in linear state all the time when detecting, and ensure that the accuracy of detection; Detection probe connection control device, controller connects alarm; Detection probe is in the anti-interference protective sleeve of probe, further improves the accuracy of detection.The height of incoming wire guide wheel, detection probe and outgoing line guide wheel can regulate, and Use Adjustment is very convenient.Further, detection probe is eddy current flaw detec; The end face of described mounting panel is horizontal plane, and parallel with the cable-through hole of popping one's head on anti-interference protective sleeve with detection probe; The anti-interference protective sleeve of described probe is insulation protective jacket; eddy current flaw detec is the character utilizing electric conducting material to produce eddy current in alternating magnetic field; detect the variable signal in electric conducting material superposition magnetic field with exosyndrome material defect; be particluarly suitable for copper covered steel wire workshop to use; anti-interference protective sleeve of popping one's head in is insulation protective jacket; especially coordinate eddy current flaw detec to use at the copper covered steel wire workshop that metal is numerous, improve the accuracy of detection.
Adopt a kind of technique adopting welding cladding process to produce hard state copper covered steel wire of technique scheme, its beneficial effect is as follows: compare plating drawing process, technique is environmental protection more, and produces the copper covered steel wire of high conductivity, and consume energy lower, production capacity is more increased; Compare dip-coating drawing process, investment of production equipment is little, and copper layer thickness is even, and quality is more stable; Compare traditional coated drawing process, technique is safety and environmental protection more, quality is more stable, rate of finished products is high, and conductance is high, can reach 21-40%, tensile strength is good, tensile strength can reach 880MPa-920MPa, and production cost is low and production process is safer, be ensure that the golden rate of finished products of product by surperficial line flaw detection checkout gear; In sum, the advantage that above-mentioned employing welding cladding process produces the technique of hard state copper covered steel wire is that production cost is low, and production process safety and environmental protection, the copper covered steel wire steady quality rate of finished products of production is high.
Accompanying drawing explanation
Fig. 1: the structural representation of surperficial line flaw detection checkout gear in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing 1 and embodiment, the present invention is described further.
Embodiment
Adopt welding cladding process to produce the technique of hard state copper covered steel wire, it is characterized in that comprising the following steps: successively
(1) drawing, is pulled to wire diameter 8.0-8.6mm by the steel wire of wire diameter 9.0-10.0mm;
(2) lonneal, puts into vacuum tempering furnace by the steel wire after drawing and carries out Low Temperature Heat Treatment, temperature 420-500 DEG C, heating time 1-2 hour, temperature retention time 5.5-6.5 hour; Then first power-off cools 3 hours with stove, then opens air-cooler and be cooled to about 260 DEG C and come out of the stove; Eliminate the work hardening of steel wire, improve plasticity, be beneficial to following process; Make the lubricating fluid remaining in Steel Wire Surface in last process form loose scale through high temperature carbonization simultaneously, be easy to follow-up pickling scale removal;
(3) pickling, removes the oxide skin of Steel Wire Surface;
(4) wash, remove the acid of Steel Wire Surface attachment;
(5) neutralize, remove the acid of washing rear surface remnants, when preventing steel wire from depositing, surface is corroded;
(6) dry up, remove the moisture that Steel Wire Surface is residual, prevent steel wire resting period length from easily causing getting rusty;
(7) align and eliminate rust, steel wire is equipped with several brushing machine to wire brush carries out bristle rust cleaning by entering after aligning wheel aligning;
(8) clad welded, first polishes to the steel wire after rust cleaning, simultaneously by copper strips bristle, while thoroughly removing steel wire and copper strip surface greasy dirt and oxide-film, increases the roughness of steel wire and copper strip surface, the adhesion of raising steel wire and copper strips; Then copper strips and steel are sent in laminating case simultaneously, the vertical forming wheel that multipair pass in laminating case gradually changes and horizontal form wheel make copper strips be coated on Steel Wire Surface uniformly, in laminating case, pass into nitrogen by air inlet, ensure that two kinds of metal materials are not oxidized in laminating process; Then weld zone is entered, welding gun place, weld zone argon gas is as protection gas, continuously weld with the weld seam of pulsed tungsten argon arc welding by metal material, cooling zone is entered after welding, cooling zone passes into nitrogen as protection gas, prevent the metal surface of welding rear high temperature oxidized, be finally wrapped on reel; Coated complete after, copper covered steel wire diameter is 10mm; In conventional bag overgrowth product, in laminating case and cooling zone all uses argon gas as protection gas, because consumption gas cost argon gas is 4 times of nitrogen, therefore passes into different protective gas by segmentation, effectively can reduce production cost, and can not affect welding and coated quality; Simultaneously, though argon gas itself is nontoxic, but there is smothering action when high concentration, when argon concentration in air higher than 33% time just have the danger suffocated, when argon concentration is more than 50%, there is serious symptoms, when concentration reaches more than 75%, can be dead in several minutes, liquid argon can hinder skin, and eye contact can cause inflammation; And nitrogen gas concn more than 80% time just there will be ill symptoms, when concentration is more than 90%, just can causes and suffocate, therefore therefore by segmentation pass into different protective gas, production safety and environmental protection more can be made;
(9) singly draw, copper covered steel recombination line after coated is sent into single machine drawing by pay off rack and directive wheel, after two groups of wire-drawing dies, copper covered steel recombination line being pulled to wire diameter is 8mm, singly be pulled through in journey, wire diameter compression ratio is 19-21%, and the wire drawing dish in the unwrapping wire position of pay off rack, directive wheel and single machine drawing is maintained at the same horizontal plane; Often organize point four intervals in wire-drawing die aperture, be respectively lubrication district, service area, sizing area and outlet area, lubrication district and service area are level and smooth arc transition, and sizing area and this tangential; After being covered to complete, certain space is there is between steel wire and copper strips, copper covered steel easily occurs that bending causes layers of copper fracture in follow-up drawing, therefore unwrapping wire position, directive wheel, wire drawing dish are maintained at the same horizontal plane, copper covered steel keeps certain inlet wire radian before entering wire drawing machine, thus the layers of copper preventing copper covered steel from causing because inlet wire bends fracture; Traditional coated-drawing process in single machine drawing only installs a wire-drawing die, adopts and singly draw for twice, therefore, easily cause surface to be damaged, surface smoothness is difficult to guarantee simultaneously.Lubricate in traditional wire-drawing die between district and service area, between service area and sizing area and have certain angle, powdered lubricant in lubrication district is difficult to enter service area, and come off by the corner that the wire drawing powder sticking to copper covered steel wire surface behind lubrication district easily enters service area at copper covered steel wire, thus affect the lubrification on copper covered steel wire surface, cause it to be easily pulled off in service area and sizing area.Lubrication district and service area are designed to level and smooth arc transition, sizing area and this tangential by the wire-drawing die in the present invention, thus eliminate the turning between subregion, and the wire drawing powder in district easy to lubricate enters service area;
(10) even draw, even draw equipment to carry out drawing the copper covered steel feeding after singly drawing, draw twice continuously, wire diameter is pulled to 3.85-3.8mm for the first time, and second time wire diameter is pulled to 1.85-1.8mm; In each drawing process, the compression ratio of per pass mould controls at 20-26%, and requires that the difference of adjacent twice compression ratio higher than 10%, otherwise easily must not break in drawing process;
(11) water tank wire drawing, with wire drawing machine, copper covered steel is pulled to wire diameter 1.65-0.8mm, tensile strength can reach 880MPa-920MPa in tensile strength, elongation 2%-4%, properties meets even higher than the requirement of industry standard SJ/T 11411-2010 copper covered steel wire standard, wire drawing machine can reduce back skating coefficient, prevents surface tear, improves product surface fineness;
(12) passivation, copper covered steel drawing completed carries out surface passivation, prevents Steel Wire Surface to be oxidized;
(13) with surperficial line flaw detection checkout gear, on-line checkingi is carried out to copper covered steel, if detect that layers of copper comes off or scratches, after autostop, layers of copper to be come off or scuffing part is cut, then get up with to welding weldering, polishing weld with file again, joint is electroplated complement plated in complement plated groove, continuing carrying out flaw detection after complement plated until by detecting;
(14) take-up sabot, obtains hard state copper covered steel wire finished product, and the conductance of copper covered steel wire finished product is 21-40%.
As shown in Figure 1; above-mentioned surperficial line flaw detection checkout gear is formed primarily of installing rack 1, incoming wire guide wheel 2, inlet wire bar 21, outgoing line guide wheel 3, outlet rod 31, probe mounting rod 4, detection probe 6, pop one's head in anti-interference protective sleeve 5, controller 7 and alarm, and installing rack 1 is made up of mount pad 12 and mounting panel 11 fixed thereon.
Inlet wire bar 21, outlet rod 31 and probe mounting rod 4 bottom are installed on mounting panel 11; incoming wire guide wheel 2 by inlet wire bar 21 Height Adjustable be movably arranged on mounting panel 11; outgoing line guide wheel 3 by outlet rod 31 Height Adjustable be movably arranged on mounting panel 11; detection probe 6 is in the anti-interference protective sleeve 5 of probe, and anti-interference protective sleeve 5 of popping one's head in is by Height Adjustable being movably arranged on mounting panel 11 of probe mounting rod 4.
Detection probe 6 and the anti-interference protective sleeve 5 of probe are provided with the concentric cable-through hole passed for copper covered steel wire; anti-interference protective sleeve 5 and the interior detection probe 6 thereof of popping one's head in is between incoming wire guide wheel 2 and outgoing line guide wheel 3; on the top of incoming wire guide wheel 2, detection probe 6 and anti-interference protective sleeve 5 of popping one's head in, the top of cable-through hole and outgoing line guide wheel 3 is on same level straight line, and line direction as shown by arrows.Detection probe 6 connection control device 7, controller 7 connects alarm.Above-mentioned detection probe 6 is eddy current flaw detecs; utilize electric conducting material in alternating magnetic field, produce the character of eddy current; detect the variable signal in electric conducting material superposition magnetic field with exosyndrome material defect; be particluarly suitable for copper covered steel wire workshop to use; anti-interference protective sleeve 5 of popping one's head in is insulation protective jackets; especially coordinate eddy current flaw detec to use at the copper covered steel wire workshop that metal is numerous, improve the accuracy of detection.The end face of mounting panel 11 is horizontal planes, and parallel with the cable-through hole of popping one's head on anti-interference protective sleeve 5 with detection probe 6, can be adjusted by mounting panel 11 and be detected line direction and the angle of copper covered steel wire, use very convenient.
Claims (2)
1. adopt welding cladding process to produce a technique for hard state copper covered steel wire, it is characterized in that comprising the following steps: successively
(1) drawing, is pulled to wire diameter 8.0-8.6mm by the steel wire of wire diameter 9.0-10.0mm;
(2) lonneal, puts into vacuum tempering furnace by the steel wire after drawing and carries out Low Temperature Heat Treatment, temperature 420-500 DEG C, heating time 1-2 hour, temperature retention time 5.5-6.5 hour; Then first power-off cools 3 hours with stove, then opens air-cooler and be cooled to about 260 DEG C and come out of the stove;
(3) pickling, removes the oxide skin of Steel Wire Surface;
(4) wash, remove the acid of Steel Wire Surface attachment;
(5) neutralize, remove the acid of washing rear surface remnants;
(6) dry up, remove the moisture that Steel Wire Surface is residual;
(7) align and eliminate rust, steel wire is equipped with several brushing machine to wire brush carries out bristle rust cleaning by entering after aligning wheel aligning;
(8) clad welded, first polishes, simultaneously by copper strips bristle to the steel wire after rust cleaning; Then send in laminating case by copper strips and steel, the vertical forming wheel in laminating case and horizontal form wheel make copper strips be coated on Steel Wire Surface uniformly, pass into nitrogen, make two kinds of metal materials not oxidized in laminating process in laminating case by air inlet simultaneously; Then enter weld zone, welding gun place, weld zone argon gas, as protection gas, continuously welds with the weld seam of pulsed tungsten argon arc welding by metal material, enters cooling zone after welding, and cooling zone passes into nitrogen as protection gas; Coated complete after, copper covered steel wire diameter is 10mm;
(9) singly draw, copper covered steel recombination line after coated is sent into single machine drawing by pay off rack and directive wheel, after two groups of wire-drawing dies, copper covered steel recombination line being pulled to wire diameter is 8mm, singly be pulled through in journey, wire diameter compression ratio is 19-21%, and the unwrapping wire position of pay off rack, directive wheel and wire drawing dish are maintained at the same horizontal plane; Often organize point four intervals in wire-drawing die aperture, be respectively lubrication district, service area, sizing area and outlet area, lubrication district and service area are level and smooth arc transition, and sizing area and this tangential;
(10) even draw, even draw equipment to carry out drawing the copper covered steel feeding after singly drawing, draw twice continuously, wire diameter is pulled to 3.85-3.8mm for the first time, and second time wire diameter is pulled to 1.85-1.8mm; In each drawing process, the compression ratio of per pass mould controls at 20-26%, and requires that the difference of adjacent twice compression ratio must not higher than 10%;
(11) water tank wire drawing, is pulled to wire diameter 1.65-0.8mm with wire drawing machine by copper covered steel, and tensile strength can reach 880MPa-920MPa in tensile strength, elongation 2%-4%;
(12) passivation, copper covered steel drawing completed carries out surface passivation;
(13) with surperficial line flaw detection checkout gear, on-line checkingi is carried out to copper covered steel, detect that layers of copper comes off or scratches, after autostop, layers of copper to be come off or scuffing part is cut, then get up with to welding weldering, polishing weld with file again, joint is electroplated complement plated in complement plated groove, continuing carrying out flaw detection after complement plated until by detecting;
(14) take-up sabot, obtains hard state copper covered steel wire finished product, and the conductance of copper covered steel wire finished product is 21-40%;
Above-mentioned surperficial line flaw detection checkout gear comprises installing rack, incoming wire guide wheel, inlet wire bar, outgoing line guide wheel, outlet rod, probe mounting rod, detection probe, the anti-interference protective sleeve of probe, controller and alarm; Installing rack is made up of mount pad and mounting panel fixed thereon, inlet wire bar, outlet rod and probe mounting rod bottom are installed on mounting panel, incoming wire guide wheel by inlet wire bar Height Adjustable be movably arranged on mounting panel, outgoing line guide wheel by outlet rod Height Adjustable be movably arranged on mounting panel, detection probe be in probe anti-interference protective sleeve in, anti-interference protective sleeve of popping one's head in by probe mounting rod Height Adjustable be movably arranged on mounting panel; Detection probe and the anti-interference protective sleeve of probe are provided with the concentric cable-through hole passed for copper covered steel wire, anti-interference protective sleeve and the interior detection probe thereof of popping one's head in is between incoming wire guide wheel and outgoing line guide wheel, and on the top of incoming wire guide wheel, detection probe and the anti-interference protective sleeve of probe, the top of cable-through hole and outgoing line guide wheel is on same level straight line; Detection probe connection control device, controller connects alarm.
2. a kind of technique adopting welding cladding process to produce hard state copper covered steel wire according to claim 1, is characterized in that detection probe is eddy current flaw detec; The end face of described mounting panel is horizontal plane, and parallel with the cable-through hole of popping one's head on anti-interference protective sleeve with detection probe; The anti-interference protective sleeve of described probe is insulation protective jacket.
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| CN105097133A (en) * | 2015-07-10 | 2015-11-25 | 浙江百川导体技术股份有限公司 | Production process of hard copper-clad aluminum with wire diameter larger than 0.9mm |
| CN105097134A (en) * | 2015-07-10 | 2015-11-25 | 浙江百川导体技术股份有限公司 | Technology for producing copper-clad aluminum magnesium wire employing weld cladding method |
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| JPS6038808B2 (en) * | 1977-03-16 | 1985-09-03 | 株式会社フジクラ | Manufacturing method of copper coated composite wire |
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| US6667098B1 (en) * | 1999-05-05 | 2003-12-23 | Borealis Technology Oy | Electric cable |
| CN101178949A (en) * | 2007-12-07 | 2008-05-14 | 张家港市盛天金属线有限公司 | Tin-coated copper plated aluminium magnesium metal recombination line and production process thereof |
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