CN101231197A - Preparation technique for cuprum peptide-cuprum nickel compensating conductor and alloy wire thereof - Google Patents
Preparation technique for cuprum peptide-cuprum nickel compensating conductor and alloy wire thereof Download PDFInfo
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- CN101231197A CN101231197A CNA200710019620XA CN200710019620A CN101231197A CN 101231197 A CN101231197 A CN 101231197A CN A200710019620X A CNA200710019620X A CN A200710019620XA CN 200710019620 A CN200710019620 A CN 200710019620A CN 101231197 A CN101231197 A CN 101231197A
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Abstract
The invention relates to the technical field of temperature-measuring element, in particular to a compensation lead of copper titanic to copper nickel and a preparation process of alloy wires of the compensation lead, wherein, a positive pole conductor of the compensation lead is copper titanic alloy wires, and a weight percentage of the chemical composition is 0.3-1.5 percent of titanic, 0.04-0.06 percent of rare earth, impurities with a percentage no larger than 0.087 percent and excess copper; a negative pole conductor of the compensation lead is copper nickel alloy wires, and a weight percentage of the chemical composition of which is 16-18.5 percent of, 0.3-1.2 percent of manganese, 0.08-0.21 percent of silicon, 0.005-0.015 percent of carbon, 0.04-0.06 percent of rare earth, impurities with a percentage no larger than 0.107 percent and excess nickel. The copper titanic alloy wires and the copper nickel alloy wires have the technical process of raw material preparation, vacuum fusion, hot forging, hot rolling, annealing of hot rolling flan, a process from drawing to annealing with a repetition of three times, and finished product detection and package for leaving factories. The ambient temperature used by the invention is high and wide with a range from -55 DEG C to 300 DEG C, and the invention has the advantages of high precision compensation with a precision level, reduction of raw material cost of 60 percent.
Description
Technical field
The present invention relates to the temperature-measuring element technical field, the preparation technology of especially a kind of cuprum peptide-cuprum nickel compensating conductor and alloy silk thereof.
Background technology
Compensating wire be by have with the essentially identical pyroelecthc properties of thermopair just, cathode conductor, insulation course and restrictive coating are formed, it is connected between thermopair and the temperature instrumentation, change the error that is produced owing to thermocouple cold junction in order to compensation, at present, what China's nickel chromium triangle-nisiloy (K type) compensation lead of thermocouple was commonly used has two kinds, be KX and KCB, though KX (nickel chromium triangle-nisiloy compensating wire) can be used in the higher temperature scope and uses, but its resistivity is bigger, make the all-in resistance of measuring the loop bigger, have influence on measuring accuracy, have influence on the resolution of instrument when serious and can not use.KX is the compensating wire of extended pattern simultaneously, and the same valency of its price and thermopair is very uneconomical.KCB (copper-copper-coppernickel compensating conductor) resistivity is less to have good electric conductivity, and lead can be done longlyer.But the serviceability temperature of KCB only is 0-100 ℃ (its precision can be ± 1.5 ℃ and ± 3.0 ℃), and the error that compensating wire is introduced when the environment temperature of enclosing is higher than 150 ℃ is bigger, reaches after 300 ℃ and work as temperature, and its error can reach 18 ℃.This brings very big error with regard to giving environment temperature in the measuring system more than 200 ℃.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of new compensating wire of the K of being used for type thermopair is provided, overcome the existing price height of existing nickel chromium triangle-nisiloy compensating wire, cause measuring accuracy difference or copper-and serviceability temperature scope that copper-coppernickel compensating conductor exists is little, big etc. the defective of measuring error when environment temperature is higher than 150 ℃.
The technical solution adopted for the present invention to solve the technical problems is: a kind of cuprum peptide-cuprum nickel compensating conductor, have anodal conductor and cathode conductor, and described anodal conductor is the copper-titanium alloy silk, described cathode conductor is a Contra wire.
Further: the chemical composition percentage by weight in the described copper-titanium alloy silk be titanium, the 0.04-0.06% of 0.3-1.5% rare earth, be not more than 0.087% the impurity and the copper of surplus.
Further: the chemical composition percentage by weight in the described Contra wire be carbon, the 0.04-0.06% of silicon, the 0.005-0.015% of manganese, the 0.08-0.21% of copper, the 0.3-1.2% of 16-18.5% rare earth, be not more than 0.107% the impurity and the nickel of surplus.
The diameter of described copper-titanium alloy silk, Contra wire is the 0.26-0.32 millimeter.
Prepare the technology of described cuprum peptide-cuprum nickel compensating conductor alloy silk, copper-titanium alloy silk, Contra wire have following technological process: a. starting material are prepared; B. vacuum melting; C. forge hot; D. hot rolling; E. hot rolling base annealing; F. wire drawing → annealing is reciprocal three times; G. the finished product detection packing is dispatched from the factory.
Described specifically process d. hot rolling is the wire rod that strand is rolled into diameter 7-8.8 millimeter; Described process e. hot rolling base annealing adopts well formula annealing furnace to vacuumize the method annealing of logical blanket gas; Wire drawing for the first time is that wire rod multiple tracks with diameter 7-8.8 millimeter is pulled to 1.37 ± 0.04 millimeters alloy silks of diameter in reciprocal three times of the described process f. wire drawing → annealing, and wire drawing for the second time is that 1.37 ± 0.04 millimeters alloy silks of diameter multiple tracks is pulled to diameter 0.52
+ 0.02 -0.04Millimeter alloy silk, wire drawing for the third time is with diameter 0.52
+ 0.02 -0.04Millimeter alloy silk multiple tracks is pulled to diameter 0.30
+ 0.02 -0.04Millimeter alloy silk; Used lubricant is a vegetable oil in the multiple tracks drawing process in reciprocal three times of the described process f. wire drawing → annealing during wire drawing for the first time; Annealing for the first time adopts well formula annealing furnace to vacuumize the method annealing of logical blanket gas; In reciprocal three times of the described process f. wire drawing → annealing second and annealing for the third time adopt continuous annealing furnace, the every alloy silk that passes furnace chamber all is provided with independently permanent tension force take-up axle.
The invention has the beneficial effects as follows that cuprum peptide-cuprum nickel compensating conductor of the present invention has four big advantages:
1. the environment temperature Gao Erkuan of its compensation: be-55 ℃ to 300 ℃;
2. compensation precision height: can reach micron order, be ± 1.5 ℃;
3. resistance alloys is more much smaller than KX, and compensating wire can be done very longly;
4. rare non-ferrous metals such as the nickel of conserve expensive, cobalt, chromium, the cost of raw material can descend 60%.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the cross-sectional end view with compensating wire of sub-thread positive and negative electrode conductor of the present invention.
Among the figure 1, anodal conductor, 2, the cathode conductor conductor.
Embodiment
Enumerate a kind of compensating wire of positive and negative electrode conductor of sub-thread as shown in Figure 1, same the present invention also is applicable to the compensating wire with multiply positive and negative electrode conductor.
First kind of embodiment of cuprum peptide-cuprum nickel compensating conductor of the present invention:
Second kind of embodiment of cuprum peptide-cuprum nickel compensating conductor of the present invention:
The third embodiment of cuprum peptide-cuprum nickel compensating conductor of the present invention:
Obviously, specific embodiment can be various combinations numerous of value range of the present invention.
The concrete preparation method of above-mentioned cuprum peptide-cuprum nickel compensating conductor:
One, raw-material preparation:
Nickel is that standard is No. 1 electrolytic nickel Ni-1 of GB6516;
Copper is that standard is the cathode copper CU-1 of GB466;
Titanium is that standard is the titanium sponge Ti of GB2524;
Manganese is that standard is the electrolytic manganese DJMn99.5 of GB3418;
Silicon is that standard is the one-level silicon metal Si-1 of GB2881;
Rare earth is that standard is the mishmetal RECe-45 of GB/T4153.
Two, vacuum melting:
1) use vaccum sensitive stove medium frequency equipment equipment and the crane of equipment as EG-25, wherein:
A. the frequency conversion unit is 60 kilowatts of motor power (output)s, motor three-phase, 375/750 volt of generator voltage, 380/220 volt of motor power, 50 kilowatts of generator powers, 2500 hertz of generator power supply frequencies;
B. vacuum melting furnace is 350 volts of inductor voltages, crucible volume (magnesia) 4 liters, 1700 ℃ of working temperatures, 25 kilograms of crucible capacity (magnesia), working chamber's final vacuum 5 * 10
-4Mm Hg;
C. the vacuum unit is 1500 liters/second of the supercharge pump speed of exhausts, 30 liters/second of the mechanical pump speed of exhausts, supercharge pump final vacuum 5 * 10
-4Mm Hg, mechanical pump final vacuum 5 * 10
-2Mm Hg.
2) fusion process
A. reinforced: nickel, copper are put in the crucible, and all the other materials are placed in the hopper, and the ratio that feeds intake is determined desired component ratio by finished product, and with due regard to volatilization, the waste of its smelting process get final product;
B. verification vacuum drying oven before the melting should reach 10
-2After reaching, mm mercury column vacuum tightness begins heating;
When c. material begins to melt in the stove, need to note at any time adjusting power and grate operation, splash when preventing " bridging " and blanking;
D. refining ten minutes behind the fine melt, refining temperature copper-titanium alloy are that 1250 ± 20 ℃, cupronickel are 1350 ± 20 ℃;
E. charged cast after calm 7 ~ 8 minutes after the refining, the temperature of copper-titanium alloy are that 1050 ± 20 ℃, the temperature of cupronickel are 1150 ± 20 ℃, 3 ~ 4 minutes, should carry out the feeding operation according to actual;
F. watering Bi Guanji, destroys vacuum and comes out of the stove more than 10 minutes with the stove cooling;
G. spindle is put on product code name and heat (batch) number, and takes off analytic sample at the cap mouth.
3) inspection standard in the founding
A. meet the composition acceptability limit;
B. spindle must not surge;
C. the cap mouth must not be askew goes out the ingot body;
D. spindle must not have overlap to change down operation over to.
Three, forge hot
A. firing equipment adopts the fuel oil reflection heating furnace, and hot forging equipment adopts the 750Kg air to forge;
B. forge hot parameter: the copper-titanium alloy heating-up temperature is 830 ± 20 ℃, temperature retention time 〉=20 minute, 90 ~ 120 minutes total heat time heating times of hot stove, after-swage dimension 45 * 45
+ 2 -3Mm, length 400 ~ 2000mm; The cupronickel heating-up temperature is 1030 ± 20 ℃, temperature retention time 30 ~ 40 minutes, 90 ~ 120 minutes total heat time heating times of hot stove, after-swage dimension 45 * 45
+ 2 -3Mm, length 400 ~ 2000mm;
C. need furnace temperature is constant in the technological requirement scope before technological requirement is opened and forged, crackle or other defective appear in 45mm side's forging stock, general on the corner, and≤5m/m place, then allow to wipe off with scraper, shrinkage cavity should thoroughly be excised totally, the highest flexibility＜5mm of forging stock, forging stock must check end to end that saw reduces phlegm and internal heat and forges shrinkage cavity and the defective that stays with a chainsaw.
Four, hot rolling is rolled into diameter 7-8.8mm wire rod with square forging stock
A. add thermal recovery fuel oil reflection heating furnace, 230 hot rolling units are adopted in hot rolling;
B. hot rolling parameter: the copper-titanium alloy heating-up temperature is 780 ± 30 ℃, temperature retention time 〉=20 minute, and the cupronickel heating-up temperature is 970 ± 30 ℃, temperature retention time 〉=30 minute;
C. technological requirement is rolled into the wire rod of diameter 7-8.8mm, bar base surface does not allow the bilateral ears or side handles of a utensil and the misalignment ears or side handles of a utensil, and bar base two ends must be sheared clean, the visible hollow and cracking of no naked eyes, bar base surface does not allow seriously sticks up skin, folding and visible crack, bar base substance 〉=5Kg.
Five, hot rolling base annealing
A. annealing device adopts 800 type well formula tempering furnaces, power 60KW, and 1000 ℃ of maximum temperatures, inner cavity size:
Maximum charge weight: 500Kg;
B. annealing parameter: the copper-titanium alloy heating-up temperature is 600 ℃, temperature retention time 80 minutes, and the cupronickel heating-up temperature is 790 ℃, temperature retention time 80 minutes; The protective atmosphere of two kinds of materials is an argon gas, and the protection malleation more than the 0.1Mpa, requires to vacuumize the back applying argon gas earlier after the charging, and heating process will often be observed furnace pressure and variation of temperature, remain the malleation (0.1Mpa) in the stove;
C. technological requirement: note charge weight, work loading height can not exceed the flat-temperature zone, proper extension temperature retention time about 30 minutes is wanted in the cooling charging, the temperature retention time end hang out to keep furnace gas behind the body of heater pressure when the furnace shell cool to room temperature, just can exit and open bell and come out of the stove.
Six, wire drawing → annealing is reciprocal three times
One) wire drawing for the first time is pulled to diameter 1.37mm from diameter 7-8.8mm:
Wire drawing for the first time is device therefor successively:
The mould therefor of wire drawing for the first time is the wolfram steel wortle, and lubricant is a vegetable oil, and lubricant changes once at least every day, to guarantee cleaning and lubricity.
Drawing process parameter list for the first time:
Two) annealing for the first time, promptly to the annealing of diameter 1.37mm alloy:
A. annealing device adopts 800 type well formula tempering furnaces, power 60KW, and 1000 ℃ of maximum temperatures, inner cavity size:
Maximum charge weight: 500Kg;
B. annealing parameter: the copper-titanium alloy heating-up temperature is 570 ± 20 ℃, temperature retention time 80 minutes, and the cupronickel heating-up temperature is 750 ± 20 ℃, temperature retention time 80 minutes; The protective atmosphere of two kinds of materials is an argon gas, and the protection malleation more than the 0.1Mpa, requires to vacuumize the back applying argon gas earlier after the charging, and heating process will often be observed furnace pressure and variation of temperature, remain the malleation (0.1Mpa) in the stove;
C. technological requirement: the silk base is earlier through rinsing greasy dirt well with suds and drying before the annealing, note charge weight, work loading height can not surpass the flat-temperature zone, coldly advance stove and want the time of proper extension about 30 minutes, to keep the pressure of furnace gas when the furnace shell cool to room temperature after hanging out body of heater after temperature retention time finishes, just can exit, open the bell discharging.
Three) wire drawing for the second time is pulled to diameter 0.52mm from diameter 1.37mm:
The device therefor of wire drawing for the second time is horizontal multi-die wire drawing water tank drawbench, power of motor 5.5KW, draw line specification
Draw line speed≤70 meter/minute.
Wire drawing for the second time with lubricator is suds, and every day, transposing was newly joined; Mould is the dimond synneusis mould.
Drawing process parameter for the second time:
Four) annealing for the second time, the annealing of diameter 0.52 alloy silk:
A. annealing device adopts the continuous permanent tension force bright annealing furnace of 1#, 1080 ℃ of maximum temperatures, and 1.3 meters of warm area length, constant speed wheel diameter 110mm, protective atmosphere are hydrogen;
B. annealing parameter: the copper-titanium alloy heating-up temperature is that 980 ℃ ± 10 ℃, line linear velocity are 15 meters/minute, and the cupronickel heating-up temperature is 980-1000 ℃, and the line linear velocity is 15 meters/minute; The protective atmosphere of two kinds of materials is for using reducibility gas hydrogen, and flow keeps malleation;
C. technological requirement: the control furnace temperature is constant evenly, in time adjusts tensioner to optimum condition, and hydrogen keeps malleation, keeps a close eye on the not oxidation of silk material surface-brightening degree, black furnace logical in advance after hydrogen 15-20 minute again energized heat up, notes that every row's silk is even.
Five) wire drawing for the third time, the alloy silk is pulled to 0.30mm from diameter 0.52mm again:
The wire drawing device therefor is horizontal multi-die wire drawing water tank drawbench for the third time, power of motor 5.5KW, draw line specification
Draw line speed≤70 meter/minute.
Wire drawing for the third time with lubricator is suds, and every day, transposing was newly joined; Mould is the dimond synneusis mould.
Drawing process parameter for the third time:
Lime light in first to three drawing process:
A. when drawing finished product, every will be tried to draw and measure hard attitude rice resistance, and the rice resistance corresponding relation according to hard attitude and soft attitude makes its soft attitude rice resistance requirement that guarantees one pole, thereby determines that the size that finished product accounts for mould is that product line is directly big or small.Permission is adjusted in≤± 0.04 scope.
B. semi-manufacture silk surface does not allow crackle and serious burr, but allows a small amount of slight scuffing, its burr and stick up defective such as skin;
C. finished product silk thread footpath is in tolerance one line range, and the silk surface generally should be cleaned, bright, no severe contamination, and longitudinal crack and mechanical damage etc. must not be arranged, and only allows a small amount of burr and little local cut, and its degree of depth is no more than the diameter permissible variation;
D.
Parcel must be put in order respectively end to end and tie up, and must not disarray.
Marshalling is even substantially for the top cylinder silk;
E. finished product should in time shift and send annealing, in order to avoid oxidation.
Six) annealing for the third time, the annealing of diameter 0.30 alloy silk:
A. annealing device adopts the continuous permanent tension force bright annealing furnace of 1#, 1080 ℃ of maximum temperatures, and 1.3 meters of warm area length, constant speed wheel diameter 110mm, protective atmosphere are hydrogen;
B. annealing parameter: the copper-titanium alloy heating-up temperature is that 700 ± 10 ℃, line linear velocity are 15 meters/minute, and the cupronickel heating-up temperature is 1050 ± 10 ℃, the line linear velocity be 15-16 rice/minute; The protective atmosphere of two kinds of materials is for using reducibility gas hydrogen, and flow keeps malleation;
C. technological requirement: the control furnace temperature is constant evenly, in time adjust tensioner to optimum condition, hydrogen keeps malleation, keep a close eye on the not oxidation of silk material surface-brightening degree, the logical in advance energized intensification again after hydrogen 15-20 minute of black furnace is noted every row's silk evenly, with the ABS new plastic axle of finished product special use cleaning, the finished product censorship that in time circulates is in order to avoid oxidation.
Seven, the finished product detection packing is dispatched from the factory
A. check:
1) line footpath and tolerance thereof, ovality is with reference to the GB/T4990 GB;
2) surface quality is with reference to the GB/T4990 GB;
3) tension test is surveyed extensibility, with reference to GB228 " metal tensile test method ";
4) resistivity and every meter resistance value are with reference to GB6146 " precision electrical resistance alloy resistivity measurement method ".
B. 100 ℃ and 200 ℃ end to end of the every axial filament of thermopower test test to the platinum thermopower, standard reference GB/T4990 GB.
C. finished product packing dispatches from the factory the finished product that send warehouse for finished product tested and packs after the confirmation item by item of project, and certified products encapsulate with thermoplastic film, in order to avoid make moist, the finished product external packing of sending is firm, is suitable for transportation, and every single-piece freight weight limit is about 25 kilograms.
Again process characteristic of the present invention is described further below:
(1) optimization of drawing process: in order to improve the surface quality of a material, the processing of alloy is optimized.For example, because the plasticity of acid bronze alloy is better, the alloy wire surface quality is subject to external influence and produces defective, so change the powdered lubricant of original usefulness, and use vegetable oil, it is injured that this has guaranteed that not only the surface is difficult for, and also avoided work in-process because the overheated and oxidation in surface.
(2) crin adopts the vacuum protection gas annealing: the crin of general acid bronze alloy all adopts liquid annealing.This technology is complicated operation but also very not environmental protection not only, and liquid annealing also will carry out pickling, passivation later on simultaneously.Employing vacuumizes the defective that the way of leading to blanket gas has overcome this respect in shaft furnace.
(3) new technology of filament continuous annealing: traditional continuous annealing apparatus is taken turns with constant speed and is realized constant speed, but it is just like many defectives such as not controlling separately.The each side homogeneity of alloy wire can not finely be solved always, in order to improve the homogeneity and the consistance of annealing back silk material, bright continuous annealing equipment has been carried out the transformation of permanent tension force, each take-up axle of each annealing furnace all has independently equips the tension force of controlling and regulating in the annealing process, each axial filament all keeps constant linear velocity in the overall process from empty axle to full axle like this, has guaranteed the homogeneity of silk material.
(4) mechanical property of each process of thermal treatment and finished product thereof is expressed as follows table:
The adjusting of rice resistance is because the composition of copper titanium-cupronickel is to be different from original KX and KCB, it has the resistivity that is different from the former two, so in order to satisfy the requirement of rice resistance, determine, can regulate a meter resistance with the method for regulating the line footpath under the satisfactory prerequisite of thermoelectricity capability at composition.
Because we have grasped the corresponding relation of the rice resistance of hard attitude silk and soft attitude silk in the trial-manufacturing process of alloy, so we can reach the rice resistance of soft attitude silk exactly with the method for controlling hard attitude rice resistance.
The resistivity of alloy silk is as follows:
Copper titanium: 0.084 ± 0.003 Ω .mm
2/ M
Copper nickel: 0.25 ± 0.03 Ω .mm
2/ M
The technical indicator that product reaches:
One) 100 of the cuprum peptide-cuprum nickel compensating conductor alloy ℃, 200 ℃ the pairing electromotive forces precision reach ± 1.5 ℃ within,
That is: 100 ℃ pairing electromotive force is 4.096 ± 0.062mv
200 ℃ pairing electromotive force is 8.138 ± 0.062mv;
Two) every meter resistance of alloy silk reaches toward complex resistance in acceptability limit,
That is: line directly is
The rice resistance of anodal conductor for (0.98 ± 1.5%) Ω/m line directly is
The rice resistance of cathode conductor conductor is that (3.8 ± 1.5%) Ω/m is (4.78 ± 1.5%) Ω (4.852-4.708) Ω toward complex resistance;
Three) other performance index also all reach the standard requirement.
In a word, the production process route of K type thermopair with cuprum peptide-cuprum nickel compensating conductor alloy silk determined in development of the present invention; Solved the key problem in technology problem of each links such as alloy formula and melting, wire drawing, thermal treatment; Also controlled especially the melting loss of elements in the melting, cold drawn in the control, continuous bright annealing of rice resistance technological parameter to the rule of thermoelectric potential influence, and means that guarantee mechanical property.If by the production technology production of the silk material of determining among the present invention, can produce the compensating wire alloy silk that meets every technical requirement, fill up the blank of China aspect high temperature K type cuprum peptide-cuprum nickel compensating conductor.
Claims (10)
1. a cuprum peptide-cuprum nickel compensating conductor has anodal conductor and cathode conductor, it is characterized in that: described anodal conductor is the copper-titanium alloy silk, and described cathode conductor is a Contra wire.
2. cuprum peptide-cuprum nickel compensating conductor according to claim 1 is characterized in that: the chemical composition percentage by weight in the described copper-titanium alloy silk be titanium, the 0.04-0.06% of 0.3-1.5% rare earth, be not more than 0.087% the impurity and the copper of surplus.
3. cuprum peptide-cuprum nickel compensating conductor according to claim 1 is characterized in that: the chemical composition percentage by weight in the described Contra wire be carbon, the 0.04-0.06% of silicon, the 0.005-0.015% of manganese, the 0.08-0.21% of copper, the 0.3-1.2% of 16-18.5% rare earth, be not more than 0.107% the impurity and the nickel of surplus.
4. cuprum peptide-cuprum nickel compensating conductor according to claim 1 is characterized in that: the diameter of described copper-titanium alloy silk, Contra wire is the 0.26-0.32 millimeter.
5. the technology of the described cuprum peptide-cuprum nickel compensating conductor alloy of preparation claim 1 silk is characterized in that described copper-titanium alloy silk, Contra wire all have following technological process respectively: the preparation of a. starting material; B. vacuum melting; C. forge hot; D. hot rolling; E. hot rolling base annealing; F. wire drawing → annealing is reciprocal three times; G. the finished product detection packing is dispatched from the factory.
6. the preparation technology of cuprum peptide-cuprum nickel compensating conductor alloy silk according to claim 5 is characterized in that: described process d. hot rolling is the wire rod that strand is rolled into diameter 7-8.8 millimeter.
7. the preparation technology of cuprum peptide-cuprum nickel compensating conductor alloy silk according to claim 5 is characterized in that: described process e. hot rolling base annealing adopts well formula annealing furnace to vacuumize the method annealing of logical blanket gas.
8. the preparation technology of cuprum peptide-cuprum nickel compensating conductor alloy silk according to claim 5, it is characterized in that: wire drawing for the first time is that wire rod multiple tracks with diameter 7-8.8 millimeter is pulled to 1.37 ± 0.04 millimeters alloy silks of diameter in reciprocal three times of the described process f. wire drawing → annealing, and wire drawing for the second time is that 1.37 ± 0.04 millimeters alloy silks of diameter multiple tracks is pulled to diameter 0.52
+ 0.02 -0.04Millimeter alloy silk, wire drawing for the third time is with diameter 0.52
+ 0.02 -0.04Millimeter alloy silk multiple tracks is pulled to diameter 0.30
+ 0.02 -0.04Millimeter alloy silk.
9. the preparation technology of cuprum peptide-cuprum nickel compensating conductor alloy silk according to claim 8 is characterized in that: used lubricant is a vegetable oil in the multiple tracks drawing process in reciprocal three times of the described process f. wire drawing → annealing during wire drawing for the first time; Annealing for the first time adopts well formula annealing furnace to vacuumize the method annealing of logical blanket gas.
10. the preparation technology of cuprum peptide-cuprum nickel compensating conductor alloy silk according to claim 8, it is characterized in that: in reciprocal three times of the described process f. wire drawing → annealing second and annealing for the third time adopt continuous annealing furnace, the every alloy silk that passes furnace chamber all is provided with independently permanent tension force take-up axle.
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Assignee: Jiangsu Huaxin Alloy Co., Ltd. Assignor: Yuan Qinhua Contract record no.: 2010320001229 Denomination of invention: Preparation technique for cuprum peptide-cuprum nickel compensating conductor and alloy wire thereof Granted publication date: 20100203 License type: Exclusive License Open date: 20080730 Record date: 20101221 |