CN100566916C - The manufacture method of copper or copper alloy tube - Google Patents
The manufacture method of copper or copper alloy tube Download PDFInfo
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- CN100566916C CN100566916C CNB2005101346281A CN200510134628A CN100566916C CN 100566916 C CN100566916 C CN 100566916C CN B2005101346281 A CNB2005101346281 A CN B2005101346281A CN 200510134628 A CN200510134628 A CN 200510134628A CN 100566916 C CN100566916 C CN 100566916C
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- 238000000034 method Methods 0.000 title claims abstract description 50
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 27
- 239000010949 copper Substances 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims abstract description 80
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000003801 milling Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 abstract description 16
- 238000002425 crystallisation Methods 0.000 abstract description 7
- 230000008025 crystallization Effects 0.000 abstract description 7
- 238000003672 processing method Methods 0.000 abstract description 7
- 239000013078 crystal Substances 0.000 abstract description 4
- 238000009785 tube rolling Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 241001124569 Lycaenidae Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 235000014987 copper Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000026683 transduction Effects 0.000 description 1
- 238000010361 transduction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/42—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for step-by-step or planetary rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/18—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills
- B21B13/20—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills for planetary rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/005—Copper or its alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0028—Drawing the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The present invention discloses the manufacture method of a kind of copper or copper alloy tube, comprises the oxide skin of a) removing the pipe top layer; B) utilize four roller planetary rollings that the pipe of the removing top layer oxide skin speed with 20-60m/min is rolled; C) utilize the pipe after secondary cooling apparatus is made high-speed rolling to cool off with the speed of 160-200 ℃/s; D) utilize the straight line drawing equipment that cooled pipe is carried out the straight line drawing.Manufacture method of the present invention is because the four roller planetary rolling intensity that adopt are bigger, mill speed is very fast in process, be about 3 times of existing processing method, thereby produce bigger distortion heat, carry out the secondary cooling afterwards immediately, make thick cast sturcture realize the crystallization rate quickening again, the crystal grain after the crystallization is tiny, even, between 0.010～0.040mm, and can reduce damage to tube surfaces to the drawing of tubing.
Description
Technical field
The present invention relates to the processing method of copper or copper alloy tube, relate in particular to a kind of machining manufacture of making high accuracy copper or copper alloy tube.
Background technology
Manufactured copper and copper-alloy pipe-material production technology adopt extruding drilling/rolling method, horizontal casting three-roller planetary rolling mill (PSW, planetenschragwalzwerk (German)) oblique milling method and preheating strand three-roller planetary rolling mill (PSW) oblique milling method more both at home and abroad at present.As shown in Figure 1 and Figure 2, three-roller planetary rolling mill (PSW) comprises casing 94, be arranged on rotor 93 in the casing 94, and roll 91, and described roll 91 revolves round the sun by arrow M direction, carries out rotation by arrow N direction.The rolling principle of above-mentioned three-roller planetary rolling mill be three rolls 91 be mutually 120 the degree angles be distributed in workpiece 92 (pipe) on every side, the centre is a plug 95, three roll 91 rotations again in revolution, and roll axis has certain skew angle α with rolling axis again, angle [alpha] is directly proportional with the three-roller planetary rolling mill eccentric throw, if eccentric throw is bigger, three rollers then can produce interference, therefore need less eccentric throw, promptly angle [alpha] is less.Because the existence of angle [alpha], roll 91 is being rolled axial thrust load of meeting formation in the process to pipe, impel tube rolling to advance, but, determined that its mill speed is lower, below 20m/min because the angle between roll 91 and the rolling axis can not be too big, and the external diameter that can process pipe is less, about 80mm, the tube outer diameter after rolling is below 50mm, and production efficiency is lower.
No. 02138022.8 patent application of China discloses the method for a kind of temperature processing and manufacturing copper and copper alloy tube, the former step comprises the pipe preheating, rolling and the rolled piece cooling of pipe, principal character is before rolling pipe to be preheating between environment temperature and the recrystallization temperature, and then be rolled by three rollers (PSW) milling train, to overcome the inhomogeneous of rolling deformation, but in practical operation, pipe is carried out preheating can not reach its real purpose, therefore pipe in the operation of rolling because the heat that deformation processing produces, the temperature of this pipe virtually completely can reach the pipe needed temperature of crystallization more again, therefore increase pre-heating technique to pipe again crystallization can not play any effect, can increase pre-heating device because of increasing pre-heating technique on the contrary, consider suitable pre-heating mean and increase the manufacturing cost of pipe, waste energy; Pipe is preheated and the temperature that produces and be not easy control, and preheat back heat in the deformation processing process and also can scatter and disappear, cause temperature to reduce, the temperature that therefore preheats generation can not produce the temperature stack that thermal conductance causes with pipe distortion in the process; In addition; because the metal pipe is heat conducting benign material; the pipe head temperature is much larger than the temperature at other positions in preheating process; it is unapproachable technology in the practical operation; and pipe carried out eliminating the step of oxide skin before preheating; in preheating process since temperature raise; at high temperature surperficial once more oxidized for preventing pipe; then need impose certain protection gas during preheating protects pipe; therefore also need to increase again equipment; raw material and technology further reduce the make efficiency of pipe; increase the cost that pipe is made.
No. 03149757.8 patent application of China discloses the method for another planetary rolling machine manufactured copper and copper alloy tube, utilize three rollers (PSW) milling train that pipe is rolled, make pipe at temperature 701-850 ℃, contraction percentage of area 85-95%, mill speed 12-30m/min roll forming, but shortcomings such as said method exists the rolled piece torsional deformation big, and mill speed is on the low side, and the tube rolling diameter is less than normal.
Please refer to shown in Figure 2, three rolls 91 and workpiece 92 have formed a subtriangular cross section in the operation of rolling, just because of this irregular section that forms at special space, make workpiece torsional deformation when rotating big, form the mass defect of tube rolling easily, and rolling resistance is bigger, the line 911 of nipping differs bigger with the wall thickness that breaks away from line 912, uniformity is relatively poor, even behind rounding, the otherness of its wall thickness (T) is still bigger, Tmax-Tmin 〉=0.35mm, production to later operation produces adverse influence, causes its precision lower.
Therefore, traditional extruding drilling/rolling method operation is many, and the centre also comprises heating process, manufacturing cost height, and yield rate is low, and the product low precision is difficult to the tubing of production overlength.Horizontal casting three-roller planetary rolling mill (PSW) oblique milling method and preheating strand three-roller planetary rolling mill (PSW) oblique milling method also exist mill speed low simultaneously, and the tube rolling specification is less than normal, can't production major diameter copper pipe and shortcoming such as waste energy.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of manufacture process is simple, finished product accuracy the is high copper or the processing method of copper-alloy pipe-material.
In order to solve the problems of the technologies described above, the present invention by the following technical solutions: the manufacture method of copper of the present invention or copper alloy tube comprises the oxide skin of a) removing the pipe top layer; B) utilize four roller planetary rollings that the pipe of the removing top layer oxide skin speed with 20-60m/min is rolled; C) pipe behind the rolling is cooled off with the speed of 160-200 ℃/s; D) utilize the straight line drawing equipment that cooled pipe is carried out the straight line drawing.
Preferably, described rolling speed is 45m/min.
Preferably, in step b), the deformation rate of pipe in the operation of rolling is greater than or equal to 90%; Described deformation rate obtains according to S=100% * (D1-D2)/D1, and wherein, S is a deformation rate, D1 be rolling before external diameter, D2 is a rolling back external diameter.
Preferably, in step b), the temperature of pipe moment be elevated to 700 ℃ or more than.
What preferably, adopt in step c) is secondary cooling apparatus.
Preferably, through after the cooling of step c), the grain size of described pipe remains in the 0.01-0.04mm scope.
Preferably, described step a) is removed the oxide skin employing of pipe top layer and is scraped the realization of bits method.
Preferably, described step a) is removed pipe top layer oxide skin and is adopted two milling cutters arranging up and down to carry out two-sided rotation to mill the face method and realize.
Preferably, the external diameter scope of described pipe is between the 80-240mm.
With respect to prior art, the invention has the advantages that: the manufacture method of copper of the present invention or copper alloy tube is not because the four roller planetary rollings that adopt are provided with idler gear, and sun gear directly be fixed to roll mandrel on planetary gear interlock mutually, therefore the intensity of four roller planetary rollings is bigger, and four roller planetary rollings are Duoed a strong point than three-roller planetary rolling mill, four roller planetary rolling utilizations are expanded the pad breaker roll and are carried out axial adjustment, therefore intensity increases greatly, no matter can be rolled, so the scope of application of this method is wider casting pipe and extrusion tube blank; And because intensity is big, and the workpiece accuracy of manufacturing is higher, the evenness of wall thickness of rolling back pipe has evenly improved about 25% than the wall thickness of the rolling pipe of three-roller planetary rolling mill, helps following process; In the processing method of the present invention in addition; omitted pipe has been carried out pre-warmed step; because the four roller planetary rolling intensity that adopt are bigger; so mill speed can be very fast in process; can reach about 3 times that have processing method now; thereby produce bigger distortion heat; can make pipe reach the temperature of crystallization again; make thick cast sturcture realize again the crystallization rate quickening; crystal grain after the crystallization is tiny; evenly; between 0.010～0.040mm; but also omitted the equipment that needs that preheats; step; and needed equipment and the measure of pipe being carried out protection against oxidation in preheating process; therefore not only technological process is simple, the efficient height, and also cost is also low.
In addition, with respect to prior art, because the roll that adopts in the processing method of the present invention is many, reduced the degreeof tortuosity of operation of rolling workpiece, improved the surface quality of rolling pipe, the surface smoothing brightness improves 50%, and the roll of four roller planetary rollings is more, therefore rolling back area reduction gear ratio is also bigger, reaches more than 90%; The processing mode that after rolling step, soft attitude pipe is carried out the straight line drawing, from and avoided the phenomenon on the scratch surface of copper pipe; And the efficient of the inventive method is higher, can reduce energy resource consumption and human resources, reduction by a relatively large margin cost.
Description of drawings
Following with reference to accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is the floor map of existing three-roller planetary rolling mill.
Fig. 2 is the operation principle schematic diagram of Fig. 1.
Fig. 3 is the floor map of the four roller planetary rollings that adopt of the present invention.
Fig. 4 is the generalized section of Fig. 3.
Fig. 5 is the operation principle schematic diagram of Fig. 4.
The specific embodiment
Please be simultaneously with reference to Fig. 3, shown in Figure 4, be applied to four roller planetary rollings 100 of the present invention comprise casing 7, be arranged on rotor 6 in the casing 7, be fixed on the rotor 6 and on circumference equally distributed four planet rolls 2, described roll 2 in the rotation of arrow A direction along with rotor 6 carries out revolving round the sun along arrow B.In the operation of rolling, workpiece 1 is between four rolls 2, and the roll axis 11 of each roll 2 all and between the rolling axis 12 of workpiece 1 has eccentric throw E, eccentric throw E is determined that by certain drift angle (wherein N is a moment of torsion, and F is a power according to formula N=F * E, E is an eccentric throw), under the certain situation of roll-force, eccentric throw E is big more, and moment of torsion is then big more.
Clear in order to show, only show two in four rolls 2 among Fig. 4, motor-driven (not shown) driven gear 8 rotates, gear 8 and be fixed on epitrochanterian gear and be meshed, drive rotor 6 and rotate, again because planet roll 2 is fixed on the rotor 6, so roll 2 is along with rotor 6 revolves round the sun.Motor-driven (not shown) driven gear 10 rotates, gear 10 and sun gear 9 are meshed, and planetary gear 5 and sun gear 9 engagements, therefore gear 10 rotates and drives planetary gear 5 rotations, being fixed on the planetary gear 5 that rotates on the roll mandrel 3 makes roll mandrel 3 rotate again, thereby the roll 2 that is fixed on the roll mandrel 3 is rotated, produce rotation.
Have certain inclination angle between described roll mandrel 3 and workpiece 1 axis, and the inclination angle size is for fixing nonadjustable.Be placed with pad 13 between roll mandrel 3 and the roll 2, described pad 13 is in the distance of adjusting on the axis direction of roll mandrel 3 between roll 2 and the workpiece 1.Because there is the gap in screw thread, be example with the screw thread of T85 * 8, making tolerances by 7 grades is 0.2mm, therefore stressed easy broken teeth when work, and the precision of pad can reach 0.01mm, and can not rupture and be out of shape, so the uniformity of pad and intensity more accurate and firm than threaded adjusting all.Therefore the intensity and the precision of four roller planetary rollings all are higher than three-roller planetary rolling mill far away, and the dimensional accuracy of rolled parts is higher.
Fig. 5 is rolling principle figure, and is approaching circular through the workpiece 1 that above-mentioned four roller planetary rollings 100 roll out, and nip line C and disengaging line D wall thickness differ less, and flexibility is less, and rolling resistance is less, and evenness of wall thickness is better.Thereby higher mill speed and better products precision have been determined.
The present invention adopts the processing method of above-mentioned four roller planetary rollings, 100 manufactured coppers or copper-alloy pipe-material to have the following steps.
1) at first will cast or the surface removal oxide skin of extruded tube (rod) base (workpiece 1).
In this step, can adopt the oxide skin of method removal workpiece 1 outer surface of machining, for example can adopt and scrape the bits method or the method that the face machine mills face is milled in rotation, milling the face machine with rotation, to mill face be example, preferably take to mill face simultaneously with two milling cutters arranging up and down, each milling cutter mills copper or the alloyed copper surface about 60 degree-90 degree at every turn, so reciprocal 2-3 time is one of millable, preferably controls milling the bits degree of depth by Hydrauservo System when adopting said method.
Owing to the gap between four rolls 2 is bigger, and can utilize above-mentioned pad 13 to adjust, and enhance productivity for the horizontally tracting that makes things convenient for workpiece 1 blank, and meet large-scale production requirement, therefore the external diameter scope with workpiece 1 blank preferably is decided to be between the φ 80-φ 240mm.
2) utilize four rollers of above-mentioned four roller planetary rollings 100 that workpiece 1 is carried out fast speed rolling.
The workpiece 1 that will mill behind the face imports four roller planetary rollings 100, under the mill speed state of 20～60m/min workpiece 1 is carried out high-speed rolling, and a deflection of workpiece is more than 90%, and four rolls that rotating 2 of above-mentioned milling train 100 are around workpiece 1 revolution.Plug 4 in the workpiece 1 rotates with workpiece under the effect of frictional force passively.Because distortion and aximal deformation value produce material deformation heat at a high speed.Because big speed is rolling, the temperature of workpiece 1 moment rise to 700 ℃ or more than.Preferably, the rolling speed can be 45m/min.
Form certain space angle between roll axis 11 and the rolling axis 12, above-mentioned space angle can not be an angle in one plane, and described space angle can not make workpiece 1 carry out axial feed, but described space angle and above-mentioned eccentric throw E combine, get and can form an axial thrust load, this axial thrust load advances workpiece 1.Because four rolls 2 revolve round the sun and rotation simultaneously, therefore above-mentioned milling train 100 can be realized the fast speed rolling to workpiece 1 simultaneously.Workpiece 1 is after this step of process, and the area reduction gear ratio surpasses more than 90%.
Be rolled with workpiece 1 and be example φ 100 * 25, with its external diameter rolling be φ 60 * 3, according to formula:
S＝100％×(D1-D2)/D1
Wherein: S is a deformation rate, and D1 is rolling preceding external diameter, and D2 is a rolling back external diameter, and then deformation rate is 90.9%.
The rolling speed is according to the speed of the size of the size of the shape of roll 2, eccentric throw E, propulsive force, roll 2, the speed of rotor 6, and the temperature of the cooling fluid of mentioning later and flow limit.The detailed description of above-mentioned steps is to be example with tubing, if bar is rolled, does not then have plug 4.
3) workpiece after rolling 1 is cooled off fast.
Workpiece 1 is cooled off twice water cooling plant of general usefulness (not shown) fast, described water cooling plant is arranged in described roll mill 100 back, wherein cooling is that cooling fluid is directly sprayed on roll 2 and the workpiece 1 for the first time, cooling fluid can adopt water or add the water of hot transduction agent or lubricant, thereby heat is conducted workpiece 1 in the operation of rolling; Cooling for the second time then is that the workpiece 1 through cooling is for the first time immersed cooler, and the cooling rate with 160～200 ℃/s is quickly cooled to environment temperature in cooler, to obtain the uniform grain structure structure of refinement more, the process grain size of the workpiece 1 of cooling fast can remain in 0.01～0.04mm scope.
In order to guarantee that above-mentioned grain size remains between the 0.01-0.04mm, the rolling temperature of workpiece 1 must be on the recrystallization temperature of corresponding copper or copper alloy, and can carry out timely and accurately the cooling of workpiece 1, thereby crystal grain can too not grown up.To the method for testing of above-mentioned crystal grain and the testing equipment of application all is existing.
Therefore the high-speed rolling step has been improved the inhomogeneities of material deformation with quick cooling step, and has reduced the coefficient of friction of workpiece 1 with roll 2, has improved the quality of workpiece 1, in the life-span of also having improved roll 2 simultaneously, makes its life-span prolong about 0.5～1 times.
Preferably, can also comprise the step of workpiece 1 being carried out drawing to above-mentioned workpiece 1 processing by straight line drawing equipment (not shown).After above-mentioned straight line drawing equipment is arranged at four roller planetary rollings 100, like this in drawing process, between workpiece and the workpiece, no relative slip between workpiece and the frock and scratching, the scratch workpiece, thus modal scratch in the thin-wall copper pipe spare process, scuffing defective avoided.Therefore through this step, cooled soft attitude workpiece 1 can improve surface quality significantly in the drawing of straight line drawing equipment.
Below be the several examples that adopt the workpiece of the inventive method manufacturing.
Example 1: at the TP2 by 100 couples of 100 * 50mm of above-mentioned four roller planetary rollings (phosphorized copper a kind of) when pipe is rolled, its tube rolling pipe is φ 60 * 3 ± 0.15, mill speed is about 45m/min, between its grain size 0.01--0.04mm, by four vertical pulling machines connect draw after, its evenness of wall thickness can be good, is φ 25 * 1 ± 0.08mm.
Example 2: when the TP2 pipe by 100 couples of 180 * 30mm of above-mentioned four roller planetary rollings is rolled, its tube rolling pipe is φ 108 * 4.8 ± 0.2, and mill speed is about 45m/min, between its grain size 0.010--0.04mm, by behind four vertical pullings, be φ 42 * 2.0 ± 0.10mm.
Example 3: at the BFe10-1-1 pipe (BFe10-1-1 iron white copper pipe) by 100 couples of 180 * 30mm of above-mentioned four roller planetary rollings when being rolled, its tube rolling pipe is φ 108 * 5 ± 0.15, mill speed is about 45m/min, between its grain size 0.010--0.04mm, by behind four vertical pullings, be φ 42 * 2.0 ± 0.10mm.
The above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1. the manufacture method of copper or copper alloy tube is characterized in that: may further comprise the steps: the oxide skin of a) removing the pipe top layer; B) utilize four roller planetary rollings that the pipe of removing after the oxide skin of top layer is rolled with the speed of 20-60m/min; C) pipe behind the rolling is cooled off with the speed of 160-200 ℃/s; D) utilize the straight line drawing equipment that cooled pipe is carried out the straight line drawing.
2. the manufacture method of copper as claimed in claim 1 or copper alloy tube is characterized in that: described rolling speed is 45m/min.
3. the manufacture method of copper as claimed in claim 1 or copper alloy tube is characterized in that: in step b), the deformation rate of pipe in the operation of rolling is greater than or equal to 90%; Described deformation rate obtains according to S=100% * (D1-D2)/D1, and wherein, S is a deformation rate, D1 be rolling before external diameter, D2 is a rolling back external diameter.
4. the manufacture method of copper as claimed in claim 1 or copper alloy tube is characterized in that: in step b), the temperature of pipe moment be elevated to 700 ℃ or more than.
5. the manufacture method of copper as claimed in claim 1 or copper alloy tube is characterized in that: what adopt in step c) is secondary cooling apparatus.
6. the manufacture method of copper as claimed in claim 5 or copper alloy tube is characterized in that: through after the cooling of step c), the grain size of described pipe remains in the 0.01-0.04mm scope.
7. as the manufacture method of each described copper or copper alloy tube among the claim 1-6, it is characterized in that: remove the oxide skin employing of pipe top layer in the described step a) and scrape the realization of bits method.
8. as the manufacture method of each described copper or copper alloy tube among the claim 1-6, it is characterized in that: two milling cutters that the oxide skin employing of removal pipe top layer is arranged up and down in the described step a) carry out two-sided rotation and mill the realization of face method.
9. as the manufacture method of each described copper or copper alloy tube among the claim 1-6, it is characterized in that: the external diameter scope of described pipe is between the 80-240mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101346281A CN100566916C (en) | 2005-12-13 | 2005-12-13 | The manufacture method of copper or copper alloy tube |
| PCT/EP2006/011936 WO2007068439A1 (en) | 2005-12-13 | 2006-12-12 | Method for manufacturing a tube of copper or copper alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101346281A CN100566916C (en) | 2005-12-13 | 2005-12-13 | The manufacture method of copper or copper alloy tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1981982A CN1981982A (en) | 2007-06-20 |
| CN100566916C true CN100566916C (en) | 2009-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101346281A Active CN100566916C (en) | 2005-12-13 | 2005-12-13 | The manufacture method of copper or copper alloy tube |
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| WO (1) | WO2007068439A1 (en) |
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| RU2476288C2 (en) * | 2009-01-27 | 2013-02-27 | Государственное образовательное учреждение высшего профессионального образования "Уральский государственный технический университет-УПИ имени первого Президента России Б.Н. Ельцина" | Method of drawing |
| CN101850364B (en) * | 2009-10-19 | 2011-09-07 | 宁波金田铜管有限公司 | Three-roller planetary rolling method for rolling brass tube |
| CN101912880B (en) * | 2010-07-06 | 2012-12-12 | 浙江海亮股份有限公司 | Novel planetary tube rolling mill |
| CN102059251A (en) * | 2010-08-31 | 2011-05-18 | 吴军 | Four-roll planetary tube hot rolling machine |
| CN103042366B (en) * | 2013-01-14 | 2015-04-08 | 湖南金龙国际铜业有限公司 | Manufacturing technique for copper pipes for magnetrons |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS58221605A (en) * | 1982-06-18 | 1983-12-23 | Kawasaki Heavy Ind Ltd | Planetary type skew rolling mill for producing seamless pipe |
| JPH0337770Y2 (en) * | 1985-03-30 | 1991-08-09 | ||
| FI77057C (en) * | 1987-03-26 | 1989-01-10 | Outokumpu Oy | FOERFARANDE FOER FRAMSTAELLNING AV ROER, STAENGER OCH BAND. |
| DE10107567A1 (en) * | 2001-02-17 | 2002-08-29 | Sms Meer Gmbh | Process for cold rolling seamless copper tubes |
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2005
- 2005-12-13 CN CNB2005101346281A patent/CN100566916C/en active Active
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| Publication number | Publication date |
|---|---|
| CN1981982A (en) | 2007-06-20 |
| WO2007068439A1 (en) | 2007-06-21 |
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