CN101519719A - Method and device for thermally processing sclerotized nonferrous metal wires - Google Patents
Method and device for thermally processing sclerotized nonferrous metal wires Download PDFInfo
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- CN101519719A CN101519719A CN200910068324A CN200910068324A CN101519719A CN 101519719 A CN101519719 A CN 101519719A CN 200910068324 A CN200910068324 A CN 200910068324A CN 200910068324 A CN200910068324 A CN 200910068324A CN 101519719 A CN101519719 A CN 101519719A
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Abstract
The invention discloses a method for first continuously annealing nonferrous metal wires in an on-line mode and then hard drawing the nonferrous metal wires. The method comprises the following steps of wire putting, on-line continuous middle annealing, drawing processing and wire arraying and collecting step. The invention has the advantages of putting forward a fire-new annealing process route and filling up the blank of the tinily drawing on-line continuous middle annealing process. Compared with the prior on-line continuous finished product heavy current annealing process used in the cable industry, the method can simplify the structure of equipment, reduce cooling water flow, install heat insulation facilities and leave out two process steps of external connection of protective gas and dryness of compressed air. Meanwhile, because non-contact annealing is adopted, the annealing quality is ensured. The device is easy to operate and maintain, has low manufacturing and use cost and can be applied to the whole cable industry, especially small and medium-sized enterprises. The on-line continuous middle annealing method is a novel basic processing technology capable of saving energy and water, improving quality and lowering cost in the cable industry.
Description
Technical field
The present invention relates to the method for heat-treating to through the non-ferrous metal wire rod of cold working hardening; Particularly include the non-ferrous metal wire rod through cold drawn and after producing hardening phenomenon, continue to carry out earlier in the cold drawn course of processing processing method and the equipment that carry out cold drawn processing more continuously after the on-line continuous thermal treatment.
Background technology
The non-ferrous metal wire rod is normally produced with cold-drawing process; this process can produce the cold working hardening phenomenon usually; increase the difficulty that postorder carries out finished product processing; or make non-ferrous metal cable product can't obtain good comprehensive mechanical performance; or make non-ferrous metal wire rod forfeiture plasticity and can't continue processing; for avoiding the generation of this phenomenon, adopt heat-treating methods to eliminate the cold working hardening phenomenon usually.
Eliminate the method for non-ferrous metal wire rod cold working hardening phenomenon now and normally carry out finished products.Its device has: step pan furnace annealing device; Freestanding big electric current continuous annealer; With the supporting big electric current continuous annealer of rear-mounted finished product of drawing wire machine.
The shortcoming of intermittent type pan furnace annealing device is: 1, the production process floor space is bigger; 2, the production cycle grow, yield poorly, discontinuous; 3, labour intensity is big; 4, annealing quality is inhomogeneous, unstable; 5, energy consumption height; 6, be not suitable for the annealing of fine rule (for example below 0.20 millimeter).This device is the most original annealing device, now seldom uses.
The present the most frequently used method for annealing of the cold drawn industry of non-ferrous metal wire rod, be the rear-mounted finished product big electric current continuous annealing process supporting with drawing wire machine, it is between drawing wire machine main frame and wire coiler, embed the big current annealing device of a cover, non-ferrous metal wire rod finished product after cold drawn is heat-treated, make metal wire recover plasticity with this, in order to following process.Having overcome the shortcoming of intermittent type pan furnace annealing process with the supporting big electric current continuous annealing process of rear-mounted finished product of drawing wire machine, is the optimised process of present known non-ferrous metal wire rod finished products.The technical process of the cold drawn processing of non-ferrous metal wire rod now is normally: draw greatly+anneal---→ in draw+anneal---→ draw for a short time+anneal---→ carefully draw+anneal---→ little drawing---→ annealing+finished product technology.But owing to adopt non-ferrous metal wire rod finished product annealing process, and the production rate of wire rod finished product very fast (20～50 meter per second), common type of heating has been difficult to satisfy the demand, must take big current annealing.Along with production rate is more and more faster, for reaching same annealing effect, must continue to increase the annealing electric current, thereby improve annealing temperature, otherwise will restrict the production rate of wire drawing main frame or reduce the annealing effect, therefore the shortcoming that is accompanied is just more obvious.1, annealing temperature height, the annealing electric current of requirement is also big, just makes that the electrical system element is many, power is big, reliability requirement is high, technical complexity high maintenance difficulty, so this apparatus cost height, working service cost height.2, the annealing device temperature is high more; just big more with the temperature difference of surrounding environment, therefore also very easily oxidation of wire rod finished surface simultaneously has to strengthen the flow of water coolant and protective gas; make that the thermosteresis of this finished products method and annealing device thereof is just big more, energy consumption is just high more.3, owing to adopt big current annealing, guide wheel promptly is an electrode, wire surface in case and loosening to some extent between the guide wheel electrode surface, wire surface will be wounded by electrode and become black pits and become defective products, influences quality product.4, since wire rod after water-cooled directly as finished product, the high easy oxidation discoloration of the little wire surface temperature of cooling water flow; Therefore the big wire surface of cooling water flow easily is with water, and the finished product standing storage easily produces the oxidation blackspot, has to increase pressurized air to dry up operation, makes that the operation level is more, equipment is more complicated, cost is higher.5, be difficult to glass-coated microwire is carried out anneal.In a word, equipment complexity, cost and working service cost height, adaptability not high serious restricted this method and the widespread use of device in non-ferrous metal wire rod production process, make the on-line continuous thermal treatment process become some big factory, exclusive " high end configuration " of specialized factory, unfavorable to the quality of comprehensive raising China non-ferrous metal wire product.
The big electric current continuous annealer of stand alone type is actual to be remainder after the supporting big electric current continuous annealer of rear-mounted finished product of above-mentioned and drawing wire machine is rejected the wire drawing main frame, possesses all shortcomings of aforesaid method and device; In addition, when reaching same annealing effect, also increased unwrapping wire, winding displacement, three processes of take-up, made that process is more complicated, energy consumption is higher.Therefore production process seldom adopts.
In sum, the thermal treatment after the non-ferrous metal wire rod cold working hardening at present all is to adopt the on-line continuous finished products to handle, and this requires for non-ferrous metal wire rod final finished is soft attitude, is undoubtedly unique method that holds water.But it is seldom part in the present non-ferrous metal wire rod cold working hardening postheat treatment operation that this finished products is handled, and most non-ferrous metal wire rods processing are what to be processed as the starting material of electric wire product.Its heat treatment operation be solve that the non-ferrous metal wire rod produces in cold drawing process hardening phenomenon so that continue cold drawn processing, reach good comprehensive mechanical performance, even can repeat so several times intermediate heat treatment operation for making final finished; Being applied to intermediate heat treatment in the production of articles process being applied to finished product heat-treating methods and device, obviously is irrational, also is uneconomic, and its shortcoming is significant.Therefore, the on-line continuous finished product annealing process is not popularized at line cable industry as yet comprehensively.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the shortcoming of prior art, adopts a kind of brand-new process combination, that is: draw greatly---→ annealing+in draw---→ anneal+draw---→ anneal+carefully draw-→ annealing+little drawing---→ annealing+finished product technology for a short time.Providing a kind of is not to adopt finished product thermal treatment, but adopts the method solution non-ferrous metal wire rod of on-line continuous intermediate heat treatment in the production of articles process to produce the hardened problem in the cold drawn course of processing.
The technical solution adopted in the present invention is: a kind ofly non-ferrous metal wire rod through cold working hardening is carried out the on-line continuous intermediate heat treatment carry out cold drawn method again, may further comprise the steps: A, unwrapping wire stage; B, on-line continuous intermediate heat treatment stage; C, drawing process segment; D, winding displacement, take-up stage.
The described on-line continuous intermediate heat treatment stage comprises: the non-ferrous metal wire rod enters drawing wire machine again and continues cold drawn processing until finished product being heated in heating tube under the gas shield state after assigned temperature and insulation for some time reach as-annealed condition.
Higher when the annealing temperature that the non-ferrous metal gauge or diameter of wire more slightly needs, when annealing time is longer; the described intermediate heat treatment stage also comprises pre-heating stage; that is: the non-ferrous metal wire rod is specified preheating temperature and after insulation for some time being heated to earlier under the gas shield state in preheating tube; be heated in the pipe after specified annealing temperature and insulation for some time reach as-annealed condition in annealing again, enter drawing wire machine again and continued cold drawn processing until finished product.
The non-ferrous metal wire rod is heated by the protective gas medium in preheating tube and annealing pipe and is undertaken, and the protective gas medium comprises: water vapour, nitrogen or other rare gas elementes.
The device that the method for on-line continuous intermediate heat treatment is applied to the continuous cold drawn course of processing of non-ferrous metal wire rod is, the drawing wire machine that has forward type on-line continuous process annealing device, that is: preposition on-line continuous process annealing drawing wire machine comprises drawing wire machine actinobacillus device, wire drawing main frame and winding and arranging device; Described preposition on-line continuous process annealing drawing wire machine also comprises on-line continuous process annealing device; Continuous annealer is arranged at the vertical or placement of tilting between drawing wire machine actinobacillus device and the wire drawing main frame in the middle of described, or tilts to be positioned over the top of wire drawing main frame and winding and arranging device rear portion driving part.
Described on-line continuous process annealing device comprises: the water seal device of annealing pipe and heating thereof and observing and controlling temperature device, annealing pipe, outlet guide wheel device, and connect successively; The water seal device has water vapour protection and cooling effect concurrently.Described on-line continuous process annealing device also wraps skeleton and shell, internal furnace and lagging material, temperature control electrical means.The middle portion of described annealing pipe and heating tube thereof can about, the front and back level or be obliquely installed in around be with in the internal furnace of lagging material, internal furnace and lagging material are arranged in skeleton and the shell, and skeleton and shell are stretched out in the two ends of annealing pipe and heating tube thereof.
Described annealing pipe and heating thereof are provided with seal cap, breather valve, annealing pipe with control device and link to each other successively, and annealing pipe entrance end is provided with seal cap, breather valve; Described annealing pipe and heating thereof and control device also are provided with the observing and controlling temperature device of heating tube and annealing pipe, heating tube is set in parallel in the following or side of annealing pipe, the observing and controlling temperature device of annealing pipe is arranged at the middle part of annealing tube outer surface axis, one end closely contacts with the annealing tube outer surface, and the other end links to each other with the temperature control electrical means with lead; The water seal device of described annealing pipe comprises water box, upflow tube, Automatic Water System, gasket, water-level control apparatus, water receiving and water recovery apparatus, a side of water box is arranged at the exit end of annealing pipe, this lateral opposite perforate also is provided with gasket, and the water box is inner to be connected with annealing pipe inside; Water box bottom surface is provided with upflow tube, and the top of water box is provided with Automatic Water System, water-level control apparatus, and the below of water box is provided with water receiving and water recovery apparatus.
Described on-line continuous process annealing device also comprises regenerator section, and described regenerator section is provided with: preheating tube and heating thereof and observing and controlling temperature device, preheating tube water seal device, middle guide wheel device.The setting of described preheating tube and heating thereof and observing and controlling temperature device, water seal device is identical with being provided with of annealing pipe, and the entrance end of preheating tube is provided with Go-over mould, exit end is provided with seal cap, breather valve.Regenerator section is arranged at the following or side that internal furnace is parallel to annealing portion.
Vertical or when tilting to be positioned between drawing wire machine actinobacillus device and the wire drawing main frame when on-line continuous process annealing device, the water box of described preheating tube water seal device, upflow tube, Automatic Water System, water-level control apparatus can unite two into one with water box, upflow tube, Automatic Water System, the water-level control apparatus of the water seal device of annealing pipe.
Described preheating tube water seal device, preheating tube and heating thereof and observing and controlling temperature device, middle guide wheel device not necessarily can omit according to practical situation.
The invention has the beneficial effects as follows: the existing cold drawn manufacturing procedure process of non-ferrous metal wire rod is changed, made the manufacturing procedure process of moving and recombinating new after the annealing operation.Move the pressure of greatly having alleviated annealing operation after the annealing operation, because the payingoff speed of same diameter specifications subsequent handling often preorder operation take-up speed 1/tens or even 1/tens, reach same annealing effect, annealing temperature can reduce a lot, the flow of water coolant can significantly reduce, and the high-temperature part of annealing device has installed lagging facility additional simultaneously, makes annealing portion outside surface and envrionment temperature differ very little, avoid the loss of heat, saved the energy.Owing to do not need big current annealing, and only need can satisfy the annealing needs with common electrically heated method, the complexity of equipment is simplified greatly, and equipment manufacturing cost, maintenance difficulties, use cost reduce significantly, have created condition for popularizing the on-line continuous intermediate annealing process; Also avoid simultaneously wire surface by the possibility that electrode wounds, guaranteed annealing quality.Because of the wire rod after the annealing also needs continuous immediately cold drawn processing, do not need degree of depth water-cooled, as long as wire surface in not oxidation immediately of air ambient, has reduced the flow of water coolant, removed pressurized air and dried up operation; The water seal arrangement of on-line continuous process annealing self can produce a small amount of water vapor in addition, and the needs of gas shield in the time of can satisfying wire annealing have been got rid of the demand of external protective gas, have simplified technical process, have removed unnecessary tooling.On-line continuous intermediate annealing process of the present invention can satisfy the non-ferrous metal wire rod in draw, draw for a short time, carefully draw, little on-line continuous process annealing demand (drawing does not greatly need process annealing) of drawing whole cold drawing process, especially filled up the little journey on-line continuous annealed blank that is pulled through of non-ferrous metal wire rod.On-line continuous process annealing method is compared with on-line continuous finished products method, present method operation and device structure are simple, relative unit cost and use cost is cheap, easy handling is safeguarded, be applicable to especially medium-sized and small enterprises of all kinds of manufacturing enterprises, thereby can be widely used in and need to go in the cold-drawing process of the process annealing process, make the thermal treatment of non-ferrous metal wire rod obtain popularizing comprehensively and becoming " configurations ", make good quality production for subsequent handling reliable assurance is provided, thereby improve the quality of non-ferrous metal wire product comprehensively.
In sum, forward type on-line continuous process annealing method is compared with on-line continuous finished products method, be a kind of energy-conservation, economize on water, improve the quality, reduce cost, widely applicable brand-new non-ferrous metal wire rod basis complete processing.
Description of drawings
Fig. 1 has the cold drawn on-line continuous annealing process of non-ferrous metal wire rod schema now
Fig. 2 non-ferrous metal wire rod of the present invention on-line continuous process annealing cold-drawing process schema
Fig. 3 non-ferrous metal wire rod finished product on-line continuous annealing process general flow chart
Fig. 4 non-ferrous metal wire rod on-line continuous intermediate annealing process general flow chart
Fig. 5 on-line continuous process annealing method is applied to the process flow sheet of the cold drawn processing of non-ferrous metal wire rod.
The preposition on-line continuous process annealing of Fig. 6 drawing wire machine process flow sheet
The preposition on-line continuous process annealing of Fig. 7 structure of wire drawing machine synoptic diagram
The preposition on-line continuous process annealing of Fig. 8 drawing wire machine water seal structural representation
The preposition on-line continuous intermediate preheating of Fig. 9/annealing drawing wire machine process flow sheet
The preposition on-line continuous intermediate preheating of Figure 10/annealing structure of wire drawing machine signal
The preposition on-line continuous intermediate preheating of Figure 11/annealing drawing wire machine water seal structural representation
Among the figure:
1. water seal device 2. non-ferrous metal wire rods
3. unwrapping wire guide wheel 4. (annealing portion) electric heating tube
5. (regenerator section) electric heating tube 6. internal furnaces
7. lagging material 8. skeletons and shell
9. (annealing portion) observing and controlling temperature device 10. (regenerator section) observing and controlling temperature device
11. annealing pipe 12. preheating tubes
(13. annealing portion) breather valve 14. (regenerator section) breather valve
(15. annealing portion) seal cap 16. (regenerator section) seal cap
17. middle guide wheel 18. bus cable devices
19. take-up 20. wire drawing main frames
21. on-line continuous process annealing device 22. actinobacillus devices
23. outgoing line guide wheel 24. (annealing portion) soft sealer
(25. annealing portion) upflow tube 26. (annealing portion) water seal device
(27. annealing portion) water-level control apparatus 28. (annealing portion) water receiving water recovery apparatus
(29. annealing portion) water box 30. (annealing portion) Automatic Water System
(31. regenerator section) water receiving water recovery apparatus 32. (regenerator section) Go-over mould
(33. regenerator section) upflow tube 34. (regenerator section) water-level control apparatus
(35. regenerator section) Go-over mould 36. (regenerator section) water seal device
(37. regenerator section) Automatic Water System 38. (regenerator section) water box
Embodiment
Fig. 5 is the process flow sheet that on-line continuous process annealing method of the present invention is applied to carry out through the non-ferrous metal wire rod of cold working hardening continuous cold drawn production.
As shown in Figure 5, on-line continuous process annealing method of the present invention is applied to the process through the cold drawn processing of non-ferrous metal wire rod of cold working hardening, may further comprise the steps: the A. unwrapping wire stage; B. annealing stage under the keeping warm mode; C. water seal stage; The D drawing stage.; E. finished product coiling stage.Wherein: the water seal stage has water vapor protection and water cooling dual function, merges mutually, interpenetrates with annealing stage under the keeping warm mode.
Embodiment 1: Fig. 6 is the process flow sheet of preposition on-line continuous process annealing drawing wire machine; Fig. 7 is the preposition on-line continuous process annealing of a first embodiment of the invention structure of wire drawing machine synoptic diagram, and Fig. 8 is the preposition on-line continuous process annealing of a first embodiment of the invention drawing wire machine water seal structural representation.
As shown in Figure 7 and Figure 8, preposition on-line continuous process annealing drawing wire machine is made up of actinobacillus device 22, on-line continuous process annealing device 21, wire drawing main frame 20 and bus cable device 18, take-up 19, and on-line continuous process annealing device 21 end of incoming cables height, leading-out terminal low dip are positioned over the top of wire drawing main frame 20 and bus cable device 18, take-up 19 rear portion driving parts.
On-line continuous process annealing device 21 by internal furnace 6, skeleton and shell 8 and be full of internal furnace 6 and shell 8 between lagging material 7, water seal device 26 form.Internal furnace 6 is installed on the centre of skeleton and shell 8 cross sections.Water seal device 26 is fixed on the lower side, shell 8 positions of on-line continuous process annealing device 21.
Internal furnace 6 is made up of annealing pipe 11, electric heating tube 4, observing and controlling temperature device 9, breather valve 13, seal cap 15.Water seal device 26 is made up of open type water box 29, Automatic Water System 30, upflow tube 25, water-level control apparatus 27, soft sealer 24, water receiving water recovery apparatus 28.
Non-ferrous metal wire rod 2 is through actinobacillus device 22; under the guiding of guide wheel 3, pass seal cap 15 and enter annealing pipe 11; annealing this moment pipe 11 is by electric heating tube 4 heating of its underpart; and reach the technology annealing temperature of wire rod 2 by observing and controlling temperature device 9 control; outlet one end of annealing pipe 11 inserts and is equipped with in the water box 29 of distilled water or deionized water; a spot of water is heated vaporization in the annealing pipe 11; make to be full of water vapour in the annealing pipe 11 and air is discharged annealing pipe 11 by breather valve 13, thereby play the not oxidized effect in 2 surfaces of protection wire rod.Distilled water or deionized water are provided by Automatic Water System 30 in this process, water level is determined by the upper-lower position of regulating upflow tube 25, when giving water excess, just flow in the water receiving water recovery apparatus 28 of water box 29 belows, and be recycled to the workshop return water system by it by upflow tube 25; When water level was lower than upflow tube 25 position of upper, water-level control apparatus 27 was reported to the police and information is passed to Automatic Water System 30, and Automatic Water System 30 will increase feedwater flow automatically until the water level requirement.Wire rod 2 enters annealing pipe 11 and is heated and is incubated to as-annealed condition, cool off in water through water box 29, wire rod 2 passes soft sealer 24, under the guiding of guide wheel 23, shift out on-line continuous process annealing device 21, this moment, wire rod 2 surfaces had been cooled to the temperature that is difficult to oxidation in air, were admitted to and carried out cold drawn processing in the drawing wire machine 20 until finished product.Even this moment, wire surface band water can not bring disadvantageous effect to the cold drawn processing of back yet.
Embodiment 2: when when the non-ferrous metal wire rod diameter of cold working hardening is thick, required annealing temperature is higher, annealing time is longer, and increasing pre-heating stage before annealing stage is exactly the necessary optimal selection that is issued to same annealing effect in same production rate condition.Drawing wire machine with preposition on-line continuous intermediate preheating/annealing device of having primary heater unit is an example below, and forward type on-line continuous intermediate preheating/annealed method is elaborated.
Fig. 9 is that on-line continuous intermediate preheating/method for annealing of having a pre-heating stage is applied to the process flow sheet through the non-ferrous metal wire rod cold drawing process of cold working hardening, Figure 10 is the preposition on-line continuous intermediate preheating of the present invention the 2nd embodiment/annealing structure of wire drawing machine synoptic diagram, and Figure 11 is the preposition on-line continuous intermediate preheating of the present invention the 2nd embodiment/annealing drawing wire machine water seal structural representation.
As shown in Figure 10 and Figure 11, existing be installed on inclination that continuously pre-heating/annealing device is an example in the middle of drawing wire machine transmission rig top preposition, the typical structure and the using method thereof of continuously pre-heating/annealing device in the middle of the forward type be described.Preposition on-line continuous intermediate preheating/annealing drawing wire machine is made up of actinobacillus device 22, on-line continuous process annealing device 21, wire drawing main frame 20 and bus cable device 18, take-up 19, and the high outlet one end low dip of on-line continuous process annealing device 21 inlet wires one end is positioned over the top of the rear portion driving part of wire drawing main frame 20 and bus cable device 18, take-up 19.Continuous annealer tilts to be installed on drawing wire machine transmission rig top in the middle of the forward type, is in order to reduce floor space, to save usage space.When continuous annealer is longer in the middle of the forward type, also can vertically be installed between actinobacillus device and the wire drawing main frame.
On-line continuous process annealing device 21 is by internal furnace 6, skeleton and shell 8 and be full of internal furnace 6 and form with spatial lagging material 7, the water seal device 1 of shell 8, internal furnace 6 is installed on the centre of skeleton and shell 8 cross sections, one end is fixed in an end of shell 8, and the other end is also freely placed for short 40～50 millimeters than the other end of shell 8.Water seal device 1 is fixed on the lower side, shell 8 positions of on-line continuous process annealing device 21.
Internal furnace 6 is made up of the regenerator section of bottom and the annealing portion on top.Regenerator section is made up of the Go-over mould 35, preheating tube 12, breather valve 14, the seal cap 16 that connect successively and the temperature element that is installed on the electric heating tube 5 of its below and is fixed in the observing and controlling temperature device 10 of preheating tube 12 middle part outside surfaces; Annealing portion is made up of the seal cap 15 that connects successively, breather valve 13, annealing pipe 11 and the temperature element that is installed on the electric heating tube 4 of its below and is fixed in the observing and controlling temperature device 9 of annealing pipe 11 middle part outside surfaces; Electric heating tube 5, preheating tube 12, electric heating tube 4, annealing pipe 11 are placed in parallel in internal furnace 6 inside from the bottom to top.Preheating tube 12; internal furnace 6 and shell 8 are stretched out in the two ends of annealing pipe 11; electric heating tube 5; two terminals of electric heating tube 4 stretch out shell 8 respectively and carry out insulation protection; observing and controlling temperature device 10; 9 temperature element is installed on preheating tube 12 respectively; the middle part of annealing pipe 11 also contacts with their intimate; seal cap 16; 15 are individually fixed in the exit end of preheating tube 12 and the entrance end of annealing pipe 11; and dismounting flexibly; breather valve 14; 13 are individually fixed in preheating tube 12; the outlet of stretching out shell 8 and the inlet wire part of annealing pipe 11 make preheating tube 12; annealing pipe 11 inside communicate with outside atmosphere.
Water seal device 1 is made up of preheating tube water seal device 36 and annealing pipe water seal device 26 two portions.Preheating tube water seal device 36 is made up of Go-over mould 32, open type water box 38, Automatic Water System 37, upflow tube 33, water-level control apparatus 34, water receiving water recovery apparatus 31.A side of open type water box 38 be fixed in preheating tube 12 inlet wire part outside surface and with the outside surface sealing, open type water box 38 inside are inserted in the end of incoming cables of preheating tube 12, the inside of preheating tube 12 communicates with the inside of open type water box 38.In open type water box 38 and the lateral opposite perforate of preheating tube 12 fixed, open type water box 38 is communicated, with outside atmosphere at the fixing Go-over mould 32 of tapping.
Annealing pipe water seal device 26 is made up of open type water box 29, Automatic Water System 30, upflow tube 25, water-level control apparatus 27, soft sealer 24, water receiving water recovery apparatus 28.A side of open type water box 29 be fixed in annealing pipe 11 the outlet part outside surface and with the outside surface sealing, the leading-out terminal of annealing pipe 11 inserts open type water box 29 inside, the inside of annealing pipe 11 communicates with the inside of open type water box 29.In open type water box 29 and the lateral opposite perforate of annealing pipe 11 fixed, open type water box 29 is communicated, with outside atmosphere at the fixing soft sealer 24 of tapping.
The outlet of Automatic Water System 37,30 is installed on the top of open type water box 38,29 respectively.Upflow tube 33,25 is installed on the bottom of open type water box 38,29 and adjustable respectively.Water-level control apparatus 34,27 is installed on the top of open type water box 38,29 respectively, and water-level control apparatus 34,27 is freely fluctuated respectively in the water surface of open type water box 38,29.Water receiving water recovery apparatus 31,28 is individually fixed in the below of open type water box 38,29, and links to each other with flexible pipe with the workshop return water system respectively.
Non-ferrous metal wire rod 2 under the guiding of guide wheel 3, passes Go-over mould 32 through actinobacillus device 22, enters in the water box 38 of preheating tube water seal device 36, and distilled water or deionized water are housed in the water box.At this moment, water level should be higher than Go-over mould 32 central positions and the incoming line of preheating tube 12 is flooded, and wire rod 2 passes Go-over mould 35 and enters preheating tube 12 inside in water.Because liquid has surface tension; wire rod 2 is in the production run process; when Go-over mould 32,35 diameters are suitable; water not only can not overflow from Go-over mould 32 holes and also can pass Go-over mould 35 and be brought into preheating tube 12 inside; this moment, preheating tube 12 was by electric heating tube 5 heating of its underpart; and reach the preheating temperature of wire rod 2 by observing and controlling temperature device 10 control; because preheating tube 12 internal temperatures are higher than 100 ℃; the water that is brought into preheating tube 12 inside just is vaporized into water vapour; outside the air extruding pipe, thereby play a protective role.The size of steam vapour amount is by the diameter and breather valve 14 decisions of the height and the Go-over mould 35 of water level, and preheating tube 12 inner meetings produce pressure when steam vapour amount is excessive, and excessive water vapour is discharged outside the preheating tube 12 by breather valve 14.The height of water level is by the high and low position decision of upflow tube 33 when confluent is sufficient.Wire rod 2 under the protection of water vapour, in preheating tube, be heated to certain temperature and insulation certain hour after, pass seal cap 16 and enter workshop condition.
Enter annealing pipe 11 through the wire rod 2 of preheating passing seal cap 15 in the short period of time at one second the utmost point of less than under the guiding of guide wheel 17.Because preheating temperature is low and exposure duration is short, so wire rod 2 surfaces can be not oxidized.Annealing this moment pipe 11 is by electric heating tube 4 heating of its underpart; and reach the annealing temperature of wire rod 2 by observing and controlling temperature device 9 control; the exit end of annealing pipe 11 inserts and is equipped with in the water box 29 of distilled water or deionized water; a spot of water is heated vaporization in the annealing pipe 11; making to be full of water vapour in the annealing pipe 11 and air is discharged outside the annealing pipe 11 by breather valve 13, thereby playing the not oxidized effect in 2 surfaces of protection wire rod.Wire rod 2 enters annealing pipe 11 and is heated and is incubated to as-annealed condition, cool off in water through water box 29, wire rod 2 passes soft sealer 24, under the guiding of guide wheel 23, shift out on-line continuous process annealing device 21, this moment, wire rod 2 surfaces had been cooled to the temperature that is difficult to oxidation in air, were admitted to and carried out cold drawn processing in the wire drawing main frame 20 until finished product.Even this moment, wire surface band water can not bring disadvantageous effect to the cold drawn processing of back yet.
Distilled water or deionized water are provided by Automatic Water System 37,30 in the said process, water level is determined by the upper-lower position of regulating upflow tube 33,25, when giving water excess, just flow in the water receiving water recovery apparatus 31,28 of water box 38,29 belows, and be recycled to the workshop return water system by it by upflow tube 33,25; When water level was lower than upflow tube 33,25 position of upper, water-level control apparatus 34,27 was reported to the police and information is passed to Automatic Water System 37,30, and Automatic Water System 37,30 will strengthen feedwater flow automatically until the water level requirement.
From above working process as can be seen: owing to carry out before moving on to the postorder drawing after the annealing operation, the annealed technological temperature reduces greatly, the physical construction of equipment and electrical control part are all simplified greatly, equipment manufacturing cost significantly is reduced to 1/tens of on-line continuous finished products device, and maintenance cost is extremely low, and this has just created condition for the popularization of on-line continuous intermediate annealing process and laid a good foundation.
On-line continuous intermediate heat treatment technology also is specially adapted to the glass-coated microwire that can't carry out at on-line continuous finished product thermal treatment unit as the on-line continuous intermediate heat treatment of diameter 0.04mm glass-coated microwire, because the glass-coated microwire cross-sectional area is very little, the tension cutting capacity is very weak and very responsive to temperature, and the finished product production rate is very fast, difference is bigger between on-line continuous finished product thermal treatment process temperature and the theoretical temperatures, there is bigger superheating temperature, be easy to cause glass-coated microwire overheated break or the underheat thermal effectiveness undesirable, and between the transmission guide wheel running the inharmonious phenomenon that causes broken string.On-line continuous intermediate heat treatment technology is because travelling speed is slow, and difference is little between on-line continuous intermediate heat treatment technological temperature and the theoretical temperatures, and superheating temperature is very little; And electrically heated temperature control precision is very high, temperature approach in service is not more than ± and 1 ℃, therefore can not cause broken string because of the temperature reason.Simultaneously the guide wheel speed in the on-line continuous intermediate heat treatment process unit is slower, all is passive guide wheel and no matter is that structure or material can both guarantee that it has light cunning, because of mechanical transmission causes the probability of broken string extremely low.And the cold-drawing process of atomic fine rule is starved of the raw-material cooperation of soft attitude, because have difference between soft attitude YIELD STRENGTH and the tensile strength, this has just guaranteed the easier continuous realization of cold drawing process of soft attitude material; Hard attitude YIELD STRENGTH more approaches tensile strength, even does not have yield strength, and brittle failure very easily takes place in cold drawing process material.The processing of atomic fine rule is near the drawing manufacturing limit, if there is not the cooperation of soft attitude material to be difficult to realize.The cold drawing process of the atomic fine rule of diameter 0.015mm for example, if directly draw with the soft attitude wire rod of 0.20mm, the total draught of its cross section is up to more than 99.4%, whether break in its pulling process relevant with every time rate of compression, and with to divide several steps to draw irrelevant; If directly draw with the soft attitude wire rod of 0.04mm, the total draught of its cross section has only 86%, under the identical condition of other situations, though every time rate of compression is the major cause that whether breaks in its pulling process, but its correlation degree has reduced much, reduce the difficulty of joining mould, guaranteed finishing smoothly continuously of the cold drawn course of processing of atomic fine rule.
For the thicker wire rod of diameter specifications, the on-line continuous intermediate annealing process increases pre-heating stage, when having prolonged overall heat-up time, has particularly prolonged the soaking time in high temperature annealing stage, replys highly beneficial to the lattice through the cold working hardening material.In on-line continuous intermediate preheating/annealing device, primary heater unit is positioned over the following or side of the inner annealing of lagging material heating unit simultaneously, and it can absorb the waste heat that annealing device distributes, to make full use of the energy; If waste heat supply temperature is difficult to satisfy preheating requirement, the electric heater unit of primary heater unit can be replenished, and carries out temperature control by observing and controlling temperature device.
The on-line continuous intermediate annealing process can also reduce the difficulty of follow-up finished product processing, improves the total quality of final goods comprehensively, and existing is that example describes with the Production of Enamel Wires.When using the high wire rod of cold working hardening degree to carry out Production of Enamel Wires, for making the enameled wire final product quality reach user's satisfaction, usually satisfy the demand by the annealing portion in lengthening Production of Enamel Wires stage, this is not that very high wire rod can work for the cold working hardening degree; But be difficult to work for the too high wire rod of cold working hardening degree.Simultaneously also bring negative impact easily, because the lengthening of annealing portion strengthens the sag of wire rod in the pipe of annealing, wire rod is under the soft attitude of high temperature, and its surface very easily contacts to take place to rub with the annealing tube wall and abraded injury phenomenon occurs.The wire surface that frays not only influences the visual appearance of enameled wire, and the burr of the place's of fraying generation simultaneously also in use causes a hidden trouble for enameled wire, provides possibility for electrion punctures the damage electric product, has reduced the reliability of commodity.Can all the time rate of compression be controlled to a certain degree and use the on-line continuous intermediate annealing process, in time thoroughly reply when making the lattice thermal treatment of distortion, not only can reduce thermal treatment temp in the Production of Enamel Wires process, can also shorten the length of annealing portion, reduced the difficulty of Production of Enamel Wires process, improved the suppleness quality of enameled wire finished product simultaneously, not only can satisfy the needs of client's high speed coiling, and resilience expansible phenomenon can not appear in the coil that coiling goes out yet, also reduced the coil winding working strength of workers, also can not have a negative impact other.Simultaneously, because the improvement of wire rod pliability makes paint film make paint film adhesion better better attached on the wire surface.As seen, use the overall quality that the on-line continuous intermediate annealing process can improve the enameled wire finished product comprehensively.
In sum: the on-line continuous intermediate annealing process draws in can satisfying, littlely draw, carefully draw, little draw complete Section's on-line continuous intermediate annealing demand has particularly been filled up little blank that is pulled in the line continuous annealing process. Its Characteristics simple in structure, that operating cost is cheap will greatly make things convenient for the all-round popularization of this technology to use, for The comprehensive quality that comprehensively improves the downstream Related product contributes.
Claims (9)
1. method to heat-treating through the non-ferrous metal wire rod of cold working hardening may further comprise the steps:
A. unwrapping wire stage;
It is characterized in that: the method for heat-treating also comprises:
B. the non-ferrous metal wire rod through cold working hardening is carried out the intermediate heat treatment stage on cold drawn machining production line continuously;
C. the cold drawn process segment;
D. finished product coiling stage.
2. according to the described method of claim 1 to heat-treating through the non-ferrous metal wire rod of cold working hardening, it is characterized in that: described non-ferrous metal wire rod through cold working hardening is carried out the intermediate heat treatment stage on cold drawn machining production line continuously, be arranged between unwrapping wire stage and cold drawn process segment, constitute a complete and continuous course of processing with the finished product coiling stage.
3. described non-ferrous metal wire rod through cold working hardening is carried out heat-treating methods before cold drawn processing according to claim 1 or 2, it is characterized in that: the described intermediate heat treatment that non-ferrous metal wire rod through cold working hardening is carried out on cold drawn machining production line is continuously undertaken by medium, and described medium comprises water vapour, air, nitrogen and rare gas element.
4. described non-ferrous metal wire rod through cold working hardening is carried out heat-treating methods before cold drawn processing according to claim 1 or 2, it is characterized in that: the non-ferrous metal wire rod intermediate heat treatment that on-line continuous is carried out before cold drawn processing is comprised: recovery and recrystallization is handled or anneal.
5. described non-ferrous metal wire rod through cold working hardening is carried out heat-treating methods before cold drawn processing according to claim 1 or 2, it is characterized in that: the non-ferrous metal wire rod through cold working hardening comprises: copper and alloy thereof or aluminium and alloy thereof.
6. described non-ferrous metal wire rod through cold working hardening is carried out heat-treating methods before cold drawn processing according to claim 1 or 2, be applied to the device of the cold drawn course of processing, comprise actinobacillus device 22, wire drawing main frame 20 and bus cable device 18, take-up 19; It is characterized in that: described device also comprises on-line continuous process annealing device 21, and described on-line continuous process annealing device 21 is arranged between actinobacillus device 22, the wire drawing main frame 20; Described on-line continuous process annealing device 21 is arranged between actinobacillus device 22, the wire drawing main frame 20, vertical or be obliquely installed between actinobacillus device 22, wire drawing main frame 20 down, or the end of incoming cables height, the leading-out terminal low dip that refer to on-line continuous process annealing device 21 are arranged at the top of wire drawing main frame 20 and bus cable device 18, take-up 19 rear portion driving parts at last, leading-out terminal in the end of incoming cables that is meant on-line continuous process annealing device 21.
7. according to claim 1 or 2 or 6 described devices, it is characterized in that: described on-line continuous process annealing device 21 is provided with internal furnace 6, skeleton and shell 8 and is full of lagging material 7, water seal device 26 between outside and shell 8 inside of internal furnace 6, and internal furnace 6 is arranged at the centre of skeleton and shell 8 cross sections.Water seal device 26 be arranged at skeleton and shell 8 positions lower outer side, have the annealing pipe 11 of internal furnace 6 to stretch out on this side.
8. according to claim 6 or 7 described devices, it is characterized in that: described internal furnace 6 is provided with seal cap 15, breather valve 13, annealing pipe 11 and water seal device 26 thereof and connects successively, the temperature element that described internal furnace 6 also is provided with the electric heating tube 4 that is arranged at annealing pipe 11 belows and is arranged at the observing and controlling temperature device 9 of annealing pipe 11 middle part outside surfaces.The water seal device 26 of described annealing pipe 11 comprises: open type water box 29, Automatic Water System 30, upflow tube 25, water-level control apparatus 27, soft sealer 24, water receiving water recovery apparatus 28.The exit portion of annealing pipe 11 is inserted a side of open type water box 29, in open type water box 29 and the lateral opposite perforate of annealing pipe 11 fixed, and soft sealer 24 is set.Automatic Water System 30, water-level control apparatus 27 are arranged at the top of open type water box 29 respectively, and upflow tube 25 is arranged at the bottom surface of open type water box 29, and water receiving water recovery apparatus 28 is arranged at the below of open type water box 29.
9. described according to Claim 8 device is characterized in that: described internal furnace 6 also includes regenerator section, is arranged at annealing portion below or side; Described regenerator section is provided with Go-over mould 32, water seal device 36, preheating tube 12, breather valve 14, seal cap 16 and connects successively and be arranged at the electric heating tube 5 of its below and the temperature element that is arranged at the observing and controlling temperature device 10 of preheating tube 12 middle part outside surfaces; Water seal device 36 is provided with upflow tube 33, water-level control apparatus 34, Go-over mould 35, Automatic Water System 37, open type water box 38, water receiving water recovery apparatus 31.
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| CN2009100683248A CN101519719B (en) | 2009-04-01 | 2009-04-01 | Method and device for thermally processing sclerotized nonferrous metal wires |
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| CN2009100683248A CN101519719B (en) | 2009-04-01 | 2009-04-01 | Method and device for thermally processing sclerotized nonferrous metal wires |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103160898A (en) * | 2011-12-13 | 2013-06-19 | 常州市恒丰铜材有限公司 | Preparation process for super-faced silver-plated oxygen-free copper wire, and device thereof |
| CN103310912A (en) * | 2013-06-05 | 2013-09-18 | 上海德力西集团有限公司 | Continuous winding, continuous unwinding and plastic extruding process for halogen-free low-smoke anti-flaming B-type polyolefin insulated wires |
| CN103310911A (en) * | 2013-06-05 | 2013-09-18 | 上海德力西集团有限公司 | Manufacturing process for halogen-free low-smoke anti-flaming B-type irradiation crosslinking polyolefin insulated wires |
| CN103695824A (en) * | 2013-12-27 | 2014-04-02 | 常熟致圆微管技术有限公司 | Method and equipment for batch manufacturing of superfine magnesium wires |
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- 2009-04-01 CN CN2009100683248A patent/CN101519719B/en not_active Expired - Fee Related
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| CN103160898A (en) * | 2011-12-13 | 2013-06-19 | 常州市恒丰铜材有限公司 | Preparation process for super-faced silver-plated oxygen-free copper wire, and device thereof |
| CN103310912A (en) * | 2013-06-05 | 2013-09-18 | 上海德力西集团有限公司 | Continuous winding, continuous unwinding and plastic extruding process for halogen-free low-smoke anti-flaming B-type polyolefin insulated wires |
| CN103310911A (en) * | 2013-06-05 | 2013-09-18 | 上海德力西集团有限公司 | Manufacturing process for halogen-free low-smoke anti-flaming B-type irradiation crosslinking polyolefin insulated wires |
| CN103695824A (en) * | 2013-12-27 | 2014-04-02 | 常熟致圆微管技术有限公司 | Method and equipment for batch manufacturing of superfine magnesium wires |
| CN103695824B (en) * | 2013-12-27 | 2016-05-11 | 常熟致圆微管技术有限公司 | A kind of ultra-fine magnesium silk batch fabrication method and equipment |
| CN109777944A (en) * | 2019-03-21 | 2019-05-21 | 广东丹海金属有限公司 | A kind of annealing conducting wire technique and its heating device |
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| CN111346942A (en) * | 2020-03-12 | 2020-06-30 | 西安华创新材料有限公司 | Method for processing nickel-titanium shape memory alloy high-strength wire |
| CN113088661A (en) * | 2021-03-29 | 2021-07-09 | 江西耐乐铜业有限公司 | Intelligent copper pipe online annealing equipment and control method thereof |
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