CN102354580A - Method for preparing copper cladding steel wire rod by utilizing casting post-heating rotary swaging technology - Google Patents
Method for preparing copper cladding steel wire rod by utilizing casting post-heating rotary swaging technology Download PDFInfo
- Publication number
- CN102354580A CN102354580A CN2011103008035A CN201110300803A CN102354580A CN 102354580 A CN102354580 A CN 102354580A CN 2011103008035 A CN2011103008035 A CN 2011103008035A CN 201110300803 A CN201110300803 A CN 201110300803A CN 102354580 A CN102354580 A CN 102354580A
- Authority
- CN
- China
- Prior art keywords
- copper
- wire rod
- steel wire
- clad steel
- copper cladding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Forging (AREA)
Abstract
The invention discloses a method for preparing a copper cladding steel wire rod by utilizing the casting post-heating rotary swaging technology, which comprises the following steps: selecting different steel core diameters according to the specification of the manufactured wire rod; filling a treated steel core into a graphite mould; in a nitrogen or argon protective atmosphere high temperature furnace, heating to 1050-1150 DEG C; performing heat preservation for 20-30min; injecting molten pure copper liquid into the graphite mould; and performing furnace cooling to obtain a copper cladding steel blank; heating the manufactured copper cladding steel blank to 380-420 DEG C in a resistor furnace; performing the heat preservation for 10-15min; then putting on a rotary swaging machine for performing multi-pass rotary swaging; and performing return annealing when swaging is performed each time until the external diameter dimensional requirement of the process specification is met; and chemically polishing the manufactured copper cladding steel wire rod, then, washing out with clear water, and drying to obtain the copper cladding steel wire rod. The method disclosed by the invention can be used for preparing the copper cladding steel wire rod with various diameters, and the copper cladding steel wire rod has stable performance, high quality and low cost.
Description
Technical field
The invention belongs to cable wire manufacturing technology field, relate to a kind of method of utilizing hot-swage technology after the founding to prepare the copper-clad steel wire rod.
Background technology
Using the copper-clad steel wire rod widely in fields such as telecommunication cable, building cotton covered wire, lightweight electromagnetic wire and other electric wire and cable conductors; The copper clad steel wire is to be covered with layer of copper on the steel core with one heart equably; It has the high strength of steel concurrently, and the excellence conduction and the corrosion resistance of copper arranged again.The copper-clad iron wire is compared with pure copper wire has lot of advantages; Under same cross-sectional and state (hard attitude); The intensity of copper clad steel wire is the twice of solid copper wire; Can bear big impact and load; When use in relatively harsh, the mobile more frequent place of environmental condition; Have higher reliability and fatigue resistance, useful life is long; The copper clad steel wire has significantly reduced the consumption of fine copper, thereby has reduced cost with copper take place of steel, reduces density, has saved valuable copper resource; Decay is less than pure copper wire down for copper clad steel wire high frequency, and the transmission signals loss is little under high frequency, efficiency of transmission is high; The copper clad steel wire can be processed the lead with different tensile strength and conductivity, we can say, the copper clad steel wire is with a wide range of applications in fields such as telecommunication cable, building cotton covered wire, lightweight electromagnetic wire and other electric wire and cable conductors.
Processing method several commonly used to wire rod; As stretch, roller draws, rolling etc.; The stress characteristic of their work in-processes is: stretch, roller draw be two to compression, to tension stress; Favourable to plasticity preferred metal wire rod; And it is unfavorable to the low-plasticity nonferrous metal material; The latter adds and is prone to drawing crack or tensile phenomenon man-hour, causes to produce to interrupt even can't process; Rolling stress is three-dimensional compressive stress, to plasticity better or the inductile metal wire rod all favourable, but forming roll processing is expensive; The milling train maintenance cost is high, therefore, overcomes deficiency of the prior art; Promote the combination property of copper-clad steel wire rod comprehensively, become a technical problem of being badly in need of solution.
Summary of the invention
The purpose of this invention is to provide a kind of method of utilizing hot-swage technology after the founding to prepare the copper-clad steel wire rod, solved prior art for preparing said material complex process, the problem that combination property is poor, cost of manufacture is high.
The technical scheme that the present invention adopted is, a kind of method of utilizing hot-swage technology after the founding to prepare the copper-clad steel wire rod, and this method is implemented according to following steps:
Step 1, according to the steel core of the specification of made copper-clad steel wire rod apolegamy suitable diameter; With the above-mentioned steel core of choosing phosphoric acid dip 5-10 minute with mass concentration 65%-70%; Treat to polish smooth after surface impurity is removed totally, again with after the absolute ethyl alcohol flushing, oven dry;
With the ready steel core material of step 1; In the graphite jig of the respective through hole of packing into diameter; Steel core is placed in the shaft core position in the through hole; In nitrogen or argon shield atmosphere high temperature furnace; Be heated to 1050-1150 ℃, insulation 20-30min is injected into the copper liquid of fusion in the through hole of graphite jig; Take out with stove cooling back, promptly obtain the copper-clad steel blank;
The copper-clad steel blank that step 2 is made; Be heated to 380-420 ℃; Insulation 10-15min; Be put on the swager then; Adopt how secondary special-shaped forging die hammering turned blank successively; The processing capacity of each hammering is no more than 10%, and every forging once all will be melted down annealing, up to the outside dimension requirement that meets process specification;
Took by weighing 72%-75% phosphoric acid, 8%-10% sulfuric acid, 8%-10% nitric acid, 3%-4% urea, 4%-5% sulfuric acid amine and 0.01%-0.02% copper sulphate respectively according to mass percent before this, six kinds of constituent mass percentages add up to 100%;
Again the phosphoric acid, sulfuric acid, the nitric acid that are taken by weighing are poured in the polishing trough successively, stirred; Respectively the urea that taken by weighing, sulfuric acid amine, copper sulphate are added in the polishing trough then and stir, obtain polishing fluid;
Under stirring, keep 100-200 ℃ of polishing fluid temperature at last, the made copper-clad steel wire rod of step 3 is put into polishing fluid 2-3min, clean with flushing with clean water, oven dry promptly gets.
Excellent effect of the present invention is, technology is simple, and is easy to operate, and cost of manufacture reduces, and also have simultaneously: (1) wire rod machining deformation amount is big, and the deformation extent of the technology of swaging is much larger than stretching and roller die drawing; (2) wire rod distortion evenly, material internal is in three direction compressive stress states, circumferentially evenly compression can not form breach and crackle because of being out of shape the inhomogeneous material that causes, and wire rod is also less is distorted; (3) required deformation force is little, and instrument, die life improve; (4) the required actuating force of equipment is less, adopts low power motor as power source, and operating cost is low.
Description of drawings
Fig. 1 is the graphite jig structural representation that uses in the inventive method;
Fig. 2 is the vertical view of Fig. 1.
Among the figure, 1. graphite jig, 2. through hole, 3. steel core, 4. fabrication hole.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
A kind of method of utilizing hot-swage technology after the founding to prepare the copper-clad steel wire rod provided by the invention; High density, high strength, high electrically conductive graphite mould structure such as Fig. 1, shown in Figure 2 that this method is used; (fabrication hole 4 refers to macropore or the groove of opening in the upper end of graphite jig 1 evenly to have a circle fabrication hole 4 on graphite jig 1 top; Mainly be to place copper billet to be melted; And play the effect in molten bath); Graphite jig 1 middle part and bottom have through hole 2; In the course of processing steel core 3 is placed on the axle center in the through hole 2, and locatees up and down.
The inventive method is utilized above-mentioned graphite jig, implements according to following steps:
Step 1, according to the steel core of the specification of made copper-clad steel wire rod apolegamy suitable diameter, the steel core material is selected iron wire or steel wire for use, shown in the table 1 specific as follows.With the above-mentioned steel core of choosing phosphoric acid dip 5-10 minute, treat that surface impurity removes clean back and polish smooth with gauze, again with after the absolute ethyl alcohol flushing, with the drying machine drying of temperature less than 80 ℃ with mass concentration 65%-70%.
Table 1 is to select the different steel core diameter tables of comparisons according to the specification of made wire rod
| The specification of made wire rod (millimeter) | Steel wire of selecting for use or iron wire diameter (millimeter) |
| ＜Φ2 | Φ1 |
| Φ2-Φ4 | Φ1-Φ2 |
| Φ4-Φ6 | Φ2-Φ4 |
| ＞Φ7 | Φ5 |
In this step, turned blank whenever to be swaged once all will melt down annealing, annealing temperature is 350-400 ℃, is used to eliminate the machining stress that the blank course of processing produces, and reduces manufacturing deficiency, improves lumber recovery.
Took by weighing 72%-75% phosphoric acid, 8%-10% sulfuric acid, 8%-10% nitric acid, 3%-4% urea, 4%-5% sulfuric acid amine and 0.01%-0.02% copper sulphate respectively according to mass percent before this, six kinds of constituent mass percentages add up to 100%;
The molar concentration of phosphoric acid wherein is that the molar concentration of 14.63mol/L, sulfuric acid is that the molar concentration of 1.84mol/L, nitric acid is 15.55mol/L;
Again phosphoric acid, sulfuric acid, nitric acid are poured in the polishing trough successively, stirred; Respectively with stirring in urea, sulfuric acid amine, the copper sulphate adding polishing trough, obtain polishing fluid then; Under stirring, keep 100-200 ℃ of polishing fluid temperature, the made copper-clad steel wire rod of step 3 is put into polishing fluid 2-3min, clean with flushing with clean water, and with the drying machine drying of temperature less than 80 ℃, promptly get.
Embodiment 1
2 millimeters of preparation steel core diameters, 4 millimeters of wire rod external diameters, the copper-clad steel wire rod that length is not limit.
Step 1, prepare raw material, according to the steel wire of 2 millimeters of the specification cutting preprepared diameters of indication wire rod.Steel wire was soaked 6 minutes with 70% phosphoric acid solution, treats that surface impurity removes clean back and polish smooth successively with 280,320, No. 400 gauzes, again with after the absolute ethyl alcohol flushing with the drying machine drying of temperature less than 80 ℃, obtain steel core material for use.
Step three, hot swaging, prepared in step 2 a certain diameter copper-clad steel billet material, after turning scraps and cut off the excess smoothing its surface, into box-type resistance furnace heated to 380 ℃, for 10min and then placed on a precision rotary forging machine followed by a diameter
change in the degree of heat rotary forging, forging every time we heated to 380 ℃, annealing for 10min melted down, having a diameter of 4 mm copper-clad steel composite wire wool.
The copper-clad steel wire rod that 3.4 millimeters of preparation steel core diameters, 5 millimeters of wire rod external diameters, length are not limit.
Step 1, preparation raw material; Steel wire according to 3.4 millimeters of the specification cutting diameters of indication wire rod; Steel wire was soaked 10 minutes with 65% phosphoric acid solution; Treat that surface impurity removes clean back and polish smooth with 280,320, No. 400 gauzes gauze successively; Wash the back with the drying machine drying of temperature with absolute ethyl alcohol again, get steel core for use less than 80 ℃.
The mould fusion cast process is a kind of reliable simply again casting method; Have any control of casting speed even the advantage that in needs, can pause, cast product with short production cycle, cost is low.
Step three, hot swaging, prepared in step 2 a certain diameter copper-clad steel billet material, after turning scraps and cut off the excess smoothing its surface, into box-type resistance furnace heated to 400 ℃, insulation 12min and then placed on a precision rotary forging machine followed by a diameter
changes in heat swaging, each time must be heated to forging 400 ℃, 12min melted heat annealing, until a 5 mm diameter copper-clad steel wire wool.
The copper-clad steel wire rod that 4 millimeters of preparation steel core diameters, 6 millimeters of wire rod external diameters, length are not limit.
Step 1, prepare raw material, according to the steel wire of 4 millimeters of the specification cutting preprepared diameters of indication wire rod.Steel wire was soaked 8 minutes with 68% phosphoric acid solution, treats that surface impurity removes clean back and polish smooth with 280,320, No. 400 gauzes gauze successively, again with absolute ethyl alcohol flushing back with the drying machine drying of temperature less than 80 ℃, get steel core for use.
Step three, hot swaging, prepared in step 2 a certain diameter copper-clad steel billet material, after turning scraps and cut off the excess smoothing its surface, into box-type resistance furnace heated to 420 ℃, for 10min and then placed on a precision rotary forging machine followed by a diameter
changes in heat swaging, every time we forged recycled 420 ℃ annealing, until a diameter of 6 mm copper-clad steel wire wool.
The inventive method; Suffered stress state was a three-dimensional compressive stress when employing was swaged; Three-dimensional compressive stress can improve material plasticity; Tension stress then makes plasticity reduce, and swages and process the multidirectional characteristics that forge with pulse that forge that on technology, have concurrently, and the processing capacity of each hammering is smaller; Turned blank all receives at every turn and is evenly distributed on the compression that makes progress in week; Thereby eliminate defectives such as the inner pore of turned blank, cavity, broken thick crystal grain, the institutional framework of change material.This has not only been avoided a large amount of wastes of material at the material that sharp interface is arranged to two kinds, when reducing material diameter, improves density, intensity and the conductivity of wire rod greatly.
The inventive method can prepare the copper-clad steel wire rod of various diameters, and performance of products is stable, quality is high, cost is low, and whole process of preparation is simple to operate, and length is not limit, and rate of finished products is high.
Claims (3)
1. method of utilizing hot-swage technology after the founding to prepare the copper-clad steel wire rod is characterized in that this method is implemented according to following steps:
Step 1, according to the steel core of the specification of made copper-clad steel wire rod apolegamy suitable diameter; With the above-mentioned steel core of choosing phosphoric acid dip 5-10 minute with mass concentration 65%-70%; Treat to polish smooth after surface impurity is removed totally, again with after the absolute ethyl alcohol flushing, oven dry;
Step 2, founding copper-clad steel
With the ready steel core material of step 1; In the graphite jig of the respective through hole of packing into diameter; Steel core is placed in the shaft core position in the through hole; In nitrogen or argon shield atmosphere high temperature furnace; Be heated to 1050-1150 ℃, insulation 20-30min is injected into the copper liquid of fusion in the through hole of graphite jig; Take out with stove cooling back, promptly obtain the copper-clad steel blank;
Step 3, hot-swage
The copper-clad steel blank that step 2 is made; Be heated to 380-420 ℃; Insulation 10-15min; Be put on the swager then; Adopt how secondary special-shaped forging die hammering turned blank successively; The processing capacity of each hammering is no more than 10%, and every forging once all will be melted down annealing, up to the outside dimension requirement that meets process specification;
Step 4, step 3 is obtained the copper-clad steel wire rod carry out chemical polishing
Took by weighing 72%-75% phosphoric acid, 8%-10% sulfuric acid, 8%-10% nitric acid, 3%-4% urea, 4%-5% sulfuric acid amine and 0.01%-0.02% copper sulphate respectively according to mass percent before this, six kinds of constituent mass percentages add up to 100%;
Again the phosphoric acid, sulfuric acid, the nitric acid that are taken by weighing are poured in the polishing trough successively, stirred; Respectively the urea that taken by weighing, sulfuric acid amine, copper sulphate are added in the polishing trough then and stir, obtain polishing fluid;
Under stirring, keep 100-200 ℃ of polishing fluid temperature at last, the made copper-clad steel wire rod of step 3 is put into polishing fluid 2-3min, clean with flushing with clean water, oven dry promptly gets.
2. the method for utilizing hot-swage technology after the founding to prepare the copper-clad steel wire rod according to claim 1 is characterized in that, in the described step 3, and in the hot-swage process temperature 350-400 of annealing in process ℃.
3. the method for utilizing hot-swage technology after the founding to prepare the copper-clad steel wire rod according to claim 1; It is characterized in that in the described step 4, the molar concentration of phosphoric acid is 14.63mol/L; The molar concentration of sulfuric acid is 1.84mol/L, and the molar concentration of nitric acid is 15.55mol/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103008035A CN102354580B (en) | 2011-09-28 | 2011-09-28 | Method for preparing copper cladding steel wire rod by utilizing casting post-heating rotary swaging technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103008035A CN102354580B (en) | 2011-09-28 | 2011-09-28 | Method for preparing copper cladding steel wire rod by utilizing casting post-heating rotary swaging technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102354580A true CN102354580A (en) | 2012-02-15 |
| CN102354580B CN102354580B (en) | 2012-11-07 |
Family
ID=45578120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103008035A Expired - Fee Related CN102354580B (en) | 2011-09-28 | 2011-09-28 | Method for preparing copper cladding steel wire rod by utilizing casting post-heating rotary swaging technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102354580B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368622A (en) * | 2014-09-29 | 2015-02-25 | 石家庄德安旺金属科技有限公司 | Metal fiber production technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1283856A (en) * | 2000-09-08 | 2001-02-14 | 曲均绪 | Technology for making electrically conductive bimetal steel-in-copper wire |
| CN101537440A (en) * | 2009-04-10 | 2009-09-23 | 北京尚华扬电子技术开发有限公司 | Method for preparing tungsten-copper alloy wires by utilizing hot-swage technology |
| CN101546631A (en) * | 2008-02-22 | 2009-09-30 | 孙永春 | Method and device for downwards leading and continuously casting copper wire covering steel core |
| CN101763916A (en) * | 2009-12-30 | 2010-06-30 | 甘肃天拓冶金科技有限公司 | Production method for copper-clad steel double-metal wire |
-
2011
- 2011-09-28 CN CN2011103008035A patent/CN102354580B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1283856A (en) * | 2000-09-08 | 2001-02-14 | 曲均绪 | Technology for making electrically conductive bimetal steel-in-copper wire |
| CN101546631A (en) * | 2008-02-22 | 2009-09-30 | 孙永春 | Method and device for downwards leading and continuously casting copper wire covering steel core |
| CN101537440A (en) * | 2009-04-10 | 2009-09-23 | 北京尚华扬电子技术开发有限公司 | Method for preparing tungsten-copper alloy wires by utilizing hot-swage technology |
| CN101763916A (en) * | 2009-12-30 | 2010-06-30 | 甘肃天拓冶金科技有限公司 | Production method for copper-clad steel double-metal wire |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368622A (en) * | 2014-09-29 | 2015-02-25 | 石家庄德安旺金属科技有限公司 | Metal fiber production technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102354580B (en) | 2012-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105108456B (en) | The manufacture method of new-energy automobile motor axle | |
| CN104646956B (en) | Process for machining ball cage bell-like shell | |
| CN102019335B (en) | Cold forging processing method of hardened and tempered structural steel | |
| CN102000825A (en) | Method for manufacturing driving gear of motorcycle clutch | |
| JP2022511697A (en) | New hollow shaft manufacturing method | |
| CN102284835B (en) | Method for producing 10.9-class vehicle bolt of above M12 | |
| CN102103906A (en) | Method for preparing copper-coated aluminium composite material | |
| CN104148428B (en) | A kind of cold-extrusion shaping method of axial symmetry rod head part | |
| CN103668027A (en) | Quasi beta forging process for TC25 titanium alloy | |
| CN102989986A (en) | Forging technology of large TC4 alloy drum forged piece | |
| CN109434264A (en) | Large scale metal annular members electron beam fuse increases material base+looping mill rolling manufacturing process | |
| CN105057974A (en) | Manufacturing process of rotor spindle cold heading blank for automobile generator | |
| CN103556094A (en) | Method for forging and producing TC4 titanium alloy bars by using precision forging machine | |
| CN104625627B (en) | A kind of preparation method of plasma rotating electrode titanium alloy electrode rod | |
| CN104191187B (en) | A kind of door closer gear shaft processing method | |
| CN110076533B (en) | Preparation method of TC4 step shaft applied to petroleum lubricator | |
| CN102354580B (en) | Method for preparing copper cladding steel wire rod by utilizing casting post-heating rotary swaging technology | |
| CN102363260A (en) | Hot-cold combined forming method for star-shaped sleeve of constant velocity universal joint | |
| CN104368621A (en) | Manufacturing method of metal plate | |
| CN104015012A (en) | Manufacturing method of Al-Mg-Si alloy hub | |
| CN102152069B (en) | Method for producing steel sectional material of air valve | |
| CN103071690B (en) | Cold and hot extrusion molding method of rotary thick-walled shell part for vehicle | |
| CN112275979B (en) | Free forging blank-making forming control method for multi-groove special-shaped forging | |
| CN109127974A (en) | A kind of forging method of helmet magnesium lithium-base alloy guide rail | |
| CN104475701A (en) | Production method of steel clad copper composite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |