CN103230961B - The manufacture method of copper alloy tube and copper alloy tube - Google Patents
The manufacture method of copper alloy tube and copper alloy tube Download PDFInfo
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- CN103230961B CN103230961B CN201310163998.2A CN201310163998A CN103230961B CN 103230961 B CN103230961 B CN 103230961B CN 201310163998 A CN201310163998 A CN 201310163998A CN 103230961 B CN103230961 B CN 103230961B
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Abstract
The invention provides a kind of manufacture method and copper alloy tube of copper alloy tube, the manufacture method of copper alloy tube comprises: step 101, extrudes, obtain the copper alloy tube that pipe thickness is 10 millimeters to 40 millimeters to the copper alloy strand after heating; Step 104, will after extruding and the copper alloy tube being in red heat state send in planet tube grimper and carry out one-pass roller, controlled rolling speed between 4m/min to 40m/min, the contraction percentage of area between 50% to 95%, obtain copper alloy coil pipe; Step 105, stretches to copper alloy coil pipe, the subsequent treatment of any one or a few combination in shaping, annealing or finishing, obtained copper alloy tube finished product.The manufacture method of copper alloy tube provided by the invention, organically combines the advantage of extruding and rolling two kinds of methods, and once heating realizes twice hot-working, has the advantages such as operation is few, production efficiency is high, energy-conservation, cost is low, tubing article steady quality.
Description
Technical field
The present invention relates to metal pipe material manufacture field, in particular to a kind of manufacture method of copper alloy tube, and the copper alloy tube adopting this manufacture method to manufacture.
Background technology
In prior art, the manufacture method of copper alloy tube mainly contains extrusion and casting and roll process two kinds.
A kind of is copper alloy tube " extrusion ", and its technological process is: semi-continuous casting, and------Pilger pipe mill is cold rolling, and---drawing---heat treatment (surface treatment)---is packed in extruding.
There is following problem in this processing method: the tubing after extruding does not often reach final size requirement, need carry out tube reducing and subtract wall processing with pilgrim rolling machine or drawbench.This processing is cold working, both cold rolling or cold-drawn.But the intensity of metal is high during cold working, resistance of deformation is much higher than the hot-working of metal, so compared with hot-working, cold worked single pass deformation rate is low, production efficiency is low, often needs to be several times as much as hot worked processing passage and just can complete same metal strain; In addition, " rolling of extruding-Pilger " is all that straight tube is produced, and is generally difficult to process ultra-long tube, unless adopted super-tonnage extruder, otherwise be difficult to the disc type mode of production adopting ultrahigh in efficiency, this is also one of factor affecting production efficiency.The use cold working that " extrusion " is too much, causes that production efficiency is low, lumber recovery is lower and high in cost of production problem, is the greatest problem also existed during copper alloy tube is produced.
Another kind is the patent No. is " CN88101739 ", in the document that name is called " manufacture method of pipe, rod and band ", discloses a kind of production method of new copper pipe, i.e. so-called " casting and roll process ".The method is that continuous casting hollow copper base pipe is at room temperature directly sent into the rolling that PSW three-roller planetary rolling mill carries out single pass aximal deformation value.Utilize the internal friction that copper tube billet area reduction and material deformation produce, make copper tube billet under the temperature conditions being warmed up to 250 DEG C ~ 700 DEG C the recrystallization initial temperature of respective material (i.e. more than), carry out a kind of production method more advanced at present of copper pipe processing rolling.Compared with above-mentioned " extrusion ", " casting and roll process " should have that operation is few, cost is low and lumber recovery advantages of higher.The method achieved huge success at the manufacture field of copper tube in nearest 20 years.
With reference to the immense success that " casting and roll process " obtains on copper tube, engineers in this area wishes to be generalized to copper alloy tube manufacture field very much, ites is desirable to adopt the hollow copper alloy pipes such as the brass of casting, bronze and copper-nickel alloy to produce various copper alloy tube through planet tube grimper rolling.For this reason, people have done a large amount of work, as local before the copper alloy hollow bloom of casting is rolled or overall heating, casting pipe carried out when casting electromagnetic agitation with crystal grain thinning, control when milling train starts rolling parameter etc. of nipping, the patent No. is the patent document of " CN02138022 ", " CN03149786 ", " CN200410010338 ", " CN200510134628 ", " CN200910153349 " and " CN201010224476 ", have recorded work and the imagination of engineers.
But even to this day, adopt " casting and roll process " production of copper compo pipe all could not succeed, concrete reason is mainly as follows:
1, the hollow copper alloy pipe of casting is when rolling because of coarse grains compared with red copper, and crystal boundary is very easy to cracking, is difficult to set up stable as-rolled condition, rolls rear structural constituent inequality, surfaces externally and internally crack defect is many.
The various defects such as crackle, shrinkage cavity, segregation are contained in the cast sturcture of copper alloy tube, and these defects are in the process of rear passage, likely repaired, are also likely retained or amplify.When adopting " casting and roll process " to produce copper tube, the various defects on casting pipe are repaired and seam completely through the planetary rolling obtaining under deformed area high temperature, high pressure of heavy reduction, thus create this new copper pipe manufacture method.And when same method is used the rolling of copper alloy tube, copper alloy tube is very easy to cracking because of the crystal boundary of thick columnar grain in rolling, cause setting up stable as-rolled condition.Although also made blank in advance to copper alloy tube the method such as to heat, when rolling because of crystal particle crystal boundary cracking cause copper alloy tube to roll after can there is a lot of defects.All the time this adopt " casting and roll process " manufactured copper compo pipe could not obtain successful main cause.Adopt the measures such as electromagnetic agitation to have certain help to minimizing cracking, but fundamentally can not solve problem of Cracking, and cost significantly increases.
2, copper alloy deformation rate and temperature rise when carrying out planetary rolling not, causes there is manufacturing defect.
Compared with red copper, copper alloy has larger resistance of deformation, lower plasticity.When adopting planetary rolling, be difficult to reach deformation rate high as red copper and temperature rise, be difficult to the temperature in steady-state deformation district.For yielding to the performance of milling train, often during rolling copper alloy, rolling specs is much smaller compared with the section of red copper, and this but causes rolling temperature inadequate, and the defect produced in pipe and rolling can not by seam, elimination in deformed area.
3, part copper alloy has brittleness from hot-working district, and conventional low temperature casting is difficult to avoid its work brittleness district.
Some copper alloys, as brass, in 400 DEG C ~ 600 DEG CShi Shi work brittleness districts, and the deformed area temperature of planetary rolling is high temperature continuous distributed from the room temperature (or higher than room temperature) of porch to exit, if the defect produced at brittle temperature zone can not get seam before distortion terminates, defect will exist always.
Up to the present, the above-mentioned manufacturing deficiency problem of copper alloy tube is never solved well, finding the processing technology of the copper alloy tube that a kind of operation is few, lumber recovery is high, production efficiency is high, pipe workpiece quality is good, simple, is the technical problem needing solution badly.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of manufacture method of new copper alloy tube, to extrude together with planetary rolling two kinds of methods combining, make full use of hot worked superiority, once heat twice hot-working, there is the advantages such as operation is few, lumber recovery is high, production efficiency is high, obvious energy conservation, low cost of manufacture, tubing article steady quality.
In view of this, the invention provides a kind of manufacture method of copper alloy tube, comprise the following steps:
Step 101, extrudes the copper alloy strand after heating, obtains the copper alloy tube that pipe thickness is 10 millimeters to 40 millimeters;
Step 104, will after extruding and the described copper alloy tube being in red heat state send in planet tube grimper and carry out one-pass roller, controlled rolling speed between 4m/min to 40m/min, the contraction percentage of area between 50% to 95%, obtain copper alloy coil pipe;
Step 105, stretches to the described copper alloy coil pipe obtained, the subsequent treatment of any one or any several combination in shaping, annealing or finishing, obtained copper alloy tube finished product.
In this technical scheme, first add hot extrusion copper alloy strand, again the copper alloy tube after extruding with high temperature red heat state is carried out single planetary rolling to time aximal deformation value, with once having heated pipe extruding and planetary rolling twice hot-working, i.e. " heating once and rolling ", the present invention can effective economize energy, reduces costs, reduces manufacturing procedure, enhances productivity; Carry out one-pass roller with planet tube grimper, carry out rolling temperature control by controlled rolling speed and the contraction percentage of area, and then realize the high-quality rolling of copper alloy tube; According to the unlike material of pipe after rolling, carry out different subsequent treatment, thus obtain high-quality finished product.
Preferably, between described step 101 and step 104, also comprise: step 103, temperature adjusting is carried out to the described copper alloy tube obtained after step process before.
According to different copper alloy tube properties of materials, carry out temperature adjusting before the rolling selectively, control pipe enters inlet temperature during pipe mill, guarantees rolling temperature, to ensure the final performance of product.
For the Cu alloy material that part hot rolling temperature range is wide, corresponding copper alloy tube, the natural temperature had after its extruding can reach the requirement of rolling temperature, namely reaches described red heat state, do not need to carry out temperature adjusting process again, directly send in planet tube grimper and be rolled; The copper alloy tube narrower to other hot rolling temperature range, after extruding, naturally state of temperature does not reach hot-rolled temperature requirement, then carry out described temperature adjusting to it, thus guarantee the quality of manufactured goods.
Preferably, described temperature adjusting comprises the adjustment of online temperature, off-line temperature adjustment or samming process.
Online temperature regulates saves process time, and off-line temperature regulates or samming process can be carried out in special heating and thermal insulation stove, and temperature regulation effect is better, according to unlike material and the different requirement of pipe, selects suitable temperature adjusting mode.
Preferably, between described step 101 and step 103, also comprise: step 102, tube reducing process is carried out to the described copper alloy tube obtained after described step 101 process.
In some cases, due to extruding machine punching pin can not be too little reason, pipe specification after extruder extruding can not meet the dimensional requirement of planet tube grimper rolling pipe, the pipe after to extruding is now needed to carry out hot tube reducing process, to obtain the dimensions of applicable planet tube grimper rolling.
Preferably, in the process of described step 101 to described step 104, inert gas shielding is carried out.
Carry out inert gas shielding, prevent from being oxidized in heating, extruding, tube reducing, temperature adjusting and/or the operation of rolling, guarantee the quality of manufactured goods further.
Further, the red heat state of described copper alloy tube is the scope of temperature between 250 to 990 DEG C.
Control pipe and enter the temperature of pipe mill within the scope of 250 to 990 DEG C, can guarantee the rolling temperature of deformed area, after ensureing rolling, tubing has excellent performance.Skilled in the art will recognize that: object rubescent state of being heated is called red heat state, and in the present invention, some copper alloys are yielding, processing resistance is little, and temperature range when entering planet tube grimper can be wider, namely can directly be rolled without temperature adjustment after extruding; Some copper alloy requires narrow to rolling temperature range, need carry out temperature adjustment accurately and just can be rolled.
Preferably, in described step 104, by intensity of cooling when controlled rolling speed, the contraction percentage of area, rolling, the rolling temperature of described copper alloy tube in described planet tube grimper is remained on the recrystallization temperature of described copper alloy.
The processing quality of rolling temperature to pipe has material impact, by controlled rolling speed, the contraction percentage of area and rolling time intensity of cooling, ensure that the rolling temperature of pipe is higher than the recrystallization temperature of pipe, guarantees deformed area occurrence dynamics recrystallization, obtains recrystallized structure completely after rolling.
Preferably, in described step 104, emulsion during rolling, is adopted to cool; Controlling described rolling temperature controls between 600 DEG C to 990 DEG C; Described planet tube grimper is the planet tube grimper of 2-6 roller.
For maintaining rolling temperature (temperature of metal in deformed area is exactly the rolling temperature of metal) more than the recrystallization temperature of copper alloy, controlled cooling model intensity is needed in the operation of rolling, adopt 2-6 roller planet tube grimper copper alloy tube to be carried out to the rolling of single pass heavy reduction, rolling temperature is controlled be good temperature adjusting scope between 600 DEG C to 990 DEG C.
Preferably, in described step 104, the pipe fitting after described planet tube grimper one-pass roller is cooled fast or at room temperature naturally cools.
Can carry out the subsequent handling such as coil pipe, packaging after cooling, on the modern production line of serialization, for enhancing productivity, generally be provided with cooling bath, cooling fast the pipe fitting going out pipe mill, and mostly adopt water-bath cooling, cost is low, pollution-free.
Present invention also offers a kind of copper alloy tube, adopt the manufacture method of the copper alloy tube described in above-mentioned any one technical scheme to make.This copper alloy tube is superior in quality, and when being suitable for follow-up reprocessing process without the need to when annealing, can be made into the high-quality copper alloy finished product tubing of different size.
To sum up, manufacture method of the present invention, has following main feature:
The first, the heavy wall pipe that crystal grain is tiny can be squeezed out.
The solid of casting or hollow copper alloy strand are carried out hot extrusion by sending into extruder after extrusion process requirement heating, and extruder outlet is heavy wall copper alloy tube.This heavy wall copper alloy tube is that after being applicable to, the planet tube grimper of passage carries out the rolling of single pass aximal deformation value dimensionally, and this extruded heavy wall copper alloy tube can obtain larger single tube base weight, can produce ultra-long tube compared with the light-wall pipe of conventional extrusion, can improve working (machining) efficiency.
Because high temperature, three-dimensional compressive stress and aximal deformation value during extruding make casting die break and complete recrystallization, therefore the copper alloy tube institutional framework after extruding is fine and close, seldom there are surface or internal flaw, its metallographic structure changes the fine isometric crystal grains of recrystallized structure into by the coarse grain of cast sturcture, is applicable to very much the processing of postorder.
The second, optionally temperature adjusting and dimensions regulation and control are carried out to the temperature extruding the heavy wall pipe obtained.
Carry out temperature control to make it keep or obtain red heat state to be the key measure ensureing final products performances to entering the heavy wall pipe before planet tube grimper, the control of this temperature of different copper alloys is different.
For the copper alloy that some hot rolling temperature range are wider, the temperature adjusting added can not be made, utilize natural state of temperature on the rear heavy wall pipe of extruding directly to enter planet tube grimper and be rolled;
To hot rolling temperature range, stricter copper alloy is required for other some, temperature adjusting to be carried out to the heavy wall copper alloy tube after extruding, this regulation and control can carry out online temperature adjustment in the import department of the exit of extruder or planet tube grimper, also the heavy wall copper alloy tube after extruding can be sent into the temperature of carrying out off-line in special heating and thermal insulation stove and regulate or samming process.
3rd, adopt the rolling of planet tube grimper single pass aximal deformation value.
The planet tube grimper of 2-6 roller is adopted to carry out the rolling of single pass heavy reduction to the heavy wall pipe after extruding, inlet temperature when entering planet tube grimper by controlling pipe, contraction percentage of area during rolling, mill speed and intensity of cooling, rolling temperature control is between 600 DEG C-990 DEG C.
Planet tube grimper is a kind of pipe mill of heavy reduction, and the contraction percentage of area of its single pass can reach more than 70%.So large single pass heavy deformation can produce sizable deformation heat, makes to be rolled metal temperature in deformed area and is raised to more than its recrystallization temperature, form so-called hot rolling.For guaranteeing rolled metal occurrence dynamics recrystallization, being rolled the rolling temperature of metal in deformed area and should exceed metal recrystallization initial temperature, for copper alloy, the scope of this temperature is generally between 600-990 DEG C.Consider the factor of wishing red brittleness temperature two aspect obtaining better recrystallized structure and copper alloy will be avoided, the ideal range of rolling temperature should between 700-990 DEG C, and this temperature range is different according to not being both of concrete copper alloy, reaching this temperature range is ensure to roll the important guarantee that rear tubular member has premium properties.
Heavy wall pipe after extruding is sent into planet tube grimper and is carried out one-pass roller by the present invention, the rolling of planet tube grimper single pass heavy reduction can make the tubing by rolling in deformed area, produce sharply temperature rise, drafts is larger, and mill speed is faster, and this temperature rise is higher.For maintaining rolling temperature desirable in deformed area, generally to spray water to deformed area or spray emulsion etc. and cool, control pipe inlet temperature, rolling time the contraction percentage of area, roll speed and intensity of cooling, make temperature stabilization in pipe deformations district within the scope of 600-990 ° of C, the metal that rolled now has lower resistance of deformation and better ductility, pipe fitting after rolling has good recrystallized structure, makes final products have good mechanical performance.
In addition, for making tubing obtain good outward appearance and quality, the inert gas shieldings such as nitrogen need be carried out to tubing.
4th, copper alloy tube by market demand through posterior drawing, annealing or shaping in one or several methods processing process after, become vendible finished product.
Visible, adopt the manufacture method of copper alloy tube provided by the present invention, at least tool has the following advantages:
1, can the copper alloy tube of production high-quality.
Copper alloy tube kind is numerous, brass tube, and White Copper Tubes and bronze tube are widely used in all trades and professions.
The inventive method fully combines the advantage of extruding and planetary rolling two kinds of hot-working methods, can produce the copper alloy tube of high-quality.
Copper alloy tube after extruding, metallographic structure becomes processing state from casting state, organizes finer and close, does not almost have the defect such as shrinkage cavity and crackle, adopts this pipe to carry out planet tube grimper rolling, and the defect of rolling rear tubing is extremely low.
Can eliminate segregation phenomena in copper alloy strand by adding hot extrusion, planet hot rolling subsequently makes the tissue after rolling have the tissue of dynamic recrystallization.This tissue be particularly suitable for rear passage subtract wall, tube reducing processing, more easily obtain the final products of high-quality.And traditional extrusion to carry out Pilger after extrusion cold rolling, rolling rear tissue is unmanageable work hardening tissue.
2, efficient, energy-conservation, low cost, and can disc type production be carried out.
Extruder and planet tube grimper all have high production efficiency, adopt large-tonnage extruder, the combination of planet tube grimper and plate drawing machine, can manufacture the copper alloy coil pipe that large ingot is heavy.Adopt disc type to produce and can obtain high efficiency, high yield and low cost.The present invention adopts once heat and extrudes and planetary rolling twice hot-working, both " heating once and rolling " in addition, can effective economize energy, reduces costs.
In sum, the manufacture method of copper alloy tube provided by the invention, by extruding together with the advantages of rolling two kinds of methods, make full use of the superiority of hot-working method, heating once and rolling, compared with prior art has the advantages such as operation is few, lumber recovery is high, production efficiency is high, obvious energy conservation, low cost of manufacture, tubing article steady quality.
Accompanying drawing explanation
Fig. 1 is the FB(flow block) of an embodiment of manufacture method according to copper alloy tube of the present invention;
Fig. 2 is the FB(flow block) of the another embodiment of manufacture method according to copper alloy tube of the present invention;
Fig. 3 is the FB(flow block) of an embodiment again of manufacture method according to copper alloy tube of the present invention.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from mode described here to implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
As shown in Figure 1, the invention provides a kind of manufacture method of copper alloy tube, comprise the following steps:
Step 101, extrudes the copper alloy strand after heating, obtains the copper alloy tube that pipe thickness is 10 millimeters to 40 millimeters;
Step 104, will after extruding and the described copper alloy tube being in red heat state send in planet tube grimper and carry out one-pass roller, controlled rolling speed between 4m/min to 40m/min, the contraction percentage of area between 50% to 95%, obtain copper alloy coil pipe;
Step 105, stretches to the described copper alloy coil pipe obtained, the subsequent treatment of any one or any several combination in shaping, annealing or finishing, obtained copper alloy tube finished product.
In this technical scheme, with once having heated extruding and planetary rolling twice hot-working, i.e. heating once and rolling, can effective economize energy, reduce costs, manufacturing procedure is few, production efficiency is high; The pipe thickness of the pipe after extruding is 10 millimeters to 40 millimeters, this extruded heavy wall is compared with the thin-walled of conventional extrusion, larger single tube base can be obtained weigh, can long tube be manufactured, improve working (machining) efficiency, be applicable to the rolling of planet tube grimper single pass heavy reduction; One-pass roller is carried out with planet tube grimper, rolling temperature control is carried out by controlled rolling speed and the contraction percentage of area, make the rolling temperature of pipe higher than the recrystallization initial temperature of pipe, to obtain good recrystallized structure, and then realize the high-quality rolling of copper alloy tube; According to the unlike material of pipe after rolling, carry out different subsequent treatment, thus obtain high-quality finished product.
Preferably, as shown in Figure 2, between described step 101 and step 104, also comprise: step 103, temperature adjusting is carried out to the described copper alloy tube obtained after step process before.
So-called " red heat state " is technical term well known to those skilled in the art, and namely object is heated rubescent state.
According to the characteristic of different copper alloy tubes, carry out temperature adjusting before the rolling selectively, control pipe enters inlet temperature during pipe mill, guarantees rolling temperature, to ensure the final performance of product.Namely when entering planet tube grimper, can reach rolling requirements to the temperature of part copper alloy pipe stock, namely described red heat state, just no longer carries out temperature adjusting process, is directly rolled in feeding planet tube grimper; Requirement is not reached to part copper alloy pipe stock temperature before entering planet tube grimper, then described temperature adjusting is carried out to it, thus guarantee the quality of manufactured goods.
Preferably, described temperature adjusting comprises the adjustment of online temperature, off-line temperature adjustment or samming process.
Online temperature regulates saves process time, and off-line temperature regulates or samming process can be carried out in special heating and thermal insulation stove, and temperature regulation effect is better, according to unlike material and the different demand of pipe, selects suitable temperature adjusting mode.
Preferably, as shown in Figure 3, between described step 101 and step 103, also comprise: step 102, tube reducing process is carried out to the described copper alloy tube obtained after described step 101 process.
In some cases, the pipe specification after extruder extruding can not directly be sent into planet tube grimper and be rolled, and now needs the pipe after to extruding to carry out tube reducing process, to obtain the dimensions of applicable planet tube grimper rolling.
Preferably, in the process of described step 101 to described step 104, inert gas shielding is carried out.
Carry out inert gas shielding, prevent in heating, extruding, temperature adjusting and the operation of rolling, pipe is oxidized, and guarantees the quality of manufactured goods further.
Preferably, described red heat state is the state of temperature between 250 to 990 DEG C.
Control pipe and enter the temperature of pipe mill within the scope of 250 to 990 DEG C, can guarantee the rolling temperature of deformed area, after ensureing rolling, tubing has excellent performance.Skilled in the art will recognize that: object rubescent state of being heated is called red heat state, and in the present invention, some copper alloy is yielding, processing resistance is little, hot rolling temperature range is wide, can directly be rolled after this kind of alloy extrusion without temperature adjustment; Some copper alloy requires narrow to rolling temperature range, need carry out temperature adjustment accurately and just can be rolled.
In above-mentioned any embodiment, preferably, in described step 104, by intensity of cooling when controlled rolling speed, the contraction percentage of area, rolling, the rolling temperature of described copper alloy tube in described planet tube grimper is remained on the recrystallization temperature of described Copper and its alloy.
The processing quality of rolling temperature to pipe has material impact, by controlled rolling speed, the contraction percentage of area and rolling time intensity of cooling, ensure that the rolling temperature of pipe is higher than the recrystallization temperature of pipe, guarantees to obtain good dynamic recrystallized structure.
Preferably, in described step 104, emulsion during rolling, is adopted to cool; Controlling described rolling temperature controls between 600 DEG C to 990 DEG C; Described planet tube grimper is the planet tube grimper of 2-6 roller.
For maintaining rolling temperature more than the recrystallization temperature of pipe, sometimes in the operation of rolling, need controlled cooling model intensity; 2-6 roller planet tube grimpers are adopted to be applicable to rolling copper alloy tube being carried out to single pass heavy reduction; Rolling temperature being controlled between 600 DEG C to 990 DEG C is better temperature range, is preferred version.
In above-mentioned any embodiment, preferably, in described step 104, the pipe fitting after described planet tube grimper one-pass roller is cooled fast or at room temperature naturally cools.
On the modern production line of serialization, for enhancing productivity, be generally provided with cooling bath, cool fast the pipe fitting going out milling train, and mostly adopt water-bath cooling, cost is low, pollution-free, certainly according to actual needs, other the type of cooling can also be selected.
Present invention also offers a kind of copper alloy tube, adopt the manufacture method of the copper alloy tube as above described in any one technical scheme to make.This copper alloy tube is superior in quality, and when being suitable for follow-up reprocessing process without the need to when annealing, can be made into the high-quality copper alloy finished product tubing of different size.
Be described below in conjunction with the manufacture method of concrete production instance to copper alloy tube of the present invention:
Embodiment one: a preferred embodiment of the present invention is: manufacture BFe10-1-1 pipe.Rolling is carried out on XR-JSG90 three-roller planetary pipe mill.Blank extrudes through 3000 tons of extruders, and extrusion temperature is 900 DEG C, is of a size of Φ 85 × 18mm after extruding, and the temperature sending into pipe during three-roller planetary rolling mill is 650 °.Pipe mill is that 12-20m/min carries out work with rolling speed, pipe is warmed up to about 800 DEG C after entering deformed area very soon, namely rolling temperature is at about 800 DEG C, and constantly the copper alloy tube of institute's rolling is sent to forward in the emulsion bath of long 1.5m, rolling pipe fitting approximately realizes cooling fast by emulsion bath within the time in 5 seconds, then rolling is bent upwards, through coiler coil pipe.The specification of the copper alloy tube after rolling is Φ 48 × 2.3mm, and its contraction percentage of area is 91.3%, and the surface of making pipe exists without any folding pattern and other defect, and tensile strength and percentage elongation are respectively 295MPa ~ 310MPa and 25% ~ 30%.Roll rear tubing can be stretched to finished size without intermediate annealing always, as the coil pipe of Φ 9.52 × 0.5mm.Finished product is checked through eddy current inspection, and result reflects that every km is only 3 ~ 5 defect points.After rolling, tubing is best in quality, and manufacture is successful.
Embodiment two: another preferred embodiment of the present invention is: manufacture HSn70-1 brass tube.Blank extrudes through 2200 tons of extruders, and extrusion temperature is 750 DEG C, is of a size of Φ 80 × 14mm after extruding, and hot tube reducing, to external diameter Φ 60mm. then soaking to 700 DEG C in electrical heating soaking pit, imports in XR-JSG60 three-roller planetary pipe mill subsequently.Thereafter rolling is as described in above-described embodiment one, and its rolling temperature is about 830 DEG C, and mill speed is 10m/min, and the brass tube specification after rolling is Φ 40 × 2.0mm, and the contraction percentage of area is 88.1%.Brass tube surface after making is without any folding pattern and other defect, and its tensile strength and percentage elongation are respectively 320MPa ~ 380MPa and 25% ~ 40%, and the metallographic structure that rear body is rolled in Electronic Speculum display is very fine and close, and grain size is 15 ~ 40 microns.Technique is successful.This copper alloy tube, in follow-up stretching, does not almost cause the generation of disconnected pipe phenomenon because of the defect of body itself.
Embodiment three: another preferred embodiment of the present invention is: manufacture H85 brass tube.Pipe extrudes through 3000 tons of extruders; extrusion temperature is 920 DEG C; be of a size of Φ 90 × 20mm after extruding, the natural condition of high temperature that after utilizing extruding, brass tube has, directly imports XR-JSG100 three-roller planetary pipe mill without temperature adjustment and is rolled under the protection of nitrogen.Pipe fitting specification after rolling is Φ 55 × 2.5mm, and contact in rolling temperature is at 750-850 DEG C, and mill speed is 20m/min.Brass tube after rolling enters coiler rewinding after water-cooled, and then carries out multi pass drawing to Φ 6.35 × 0.6mm, makes finished product finally by heat-treatment of annealing.Adopt the H85 brass tube good mechanical performance of this explained hereafter, can be used as the material of air conditioner connecting pipe and evaporimeter, condenser, the demand of user can met qualitatively.
In sum, the present invention utilizes the advantage of extrusion technique and planetary rolling technology two kinds of methods, carries out " heating once and rolling ", has the advantages such as efficient, energy-conservation, lumber recovery is high, tubing low cost of manufacture, manufactured goods tubing quality better.Adopt manufactured copper compo pipe of the present invention to overcome defect that prior art exists and deficiency, can the copper alloy tube of production high-quality and copper alloy coil pipe, substantially increases production efficiency and the lumber recovery of copper alloy tube.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a manufacture method for copper alloy tube, is characterized in that, comprises the following steps:
Step 101, extrudes the copper alloy strand after heating, obtains the copper alloy tube that pipe thickness is 10 millimeters to 40 millimeters;
Step 104, will after extruding and the described copper alloy tube being in red heat state send in planet tube grimper and carry out single pass " heating once and rolling ", controlled rolling speed between 4m/min to 40m/min, the contraction percentage of area between 50% to 95%, obtain copper alloy coil pipe; Wherein, described red heat state is the state of temperature between 250 to 990 DEG C;
Step 105, stretches to the described copper alloy coil pipe obtained, the subsequent treatment of any one or any several combination in shaping, annealing or finishing, obtained copper alloy tube finished product.
2. the manufacture method of copper alloy tube according to claim 1, is characterized in that, between described step 101 and step 104, also comprises:
Step 103, carries out temperature adjusting to the described copper alloy tube obtained after step process before.
3. the manufacture method of copper alloy tube according to claim 2, is characterized in that, described temperature adjusting comprises natural temperature adjustment, online temperature regulates, off-line temperature regulates or samming process.
4. the manufacture method of copper alloy tube according to claim 2, is characterized in that, between described step 101 and step 103, also comprises:
Step 102, carries out tube reducing process to the described copper alloy tube obtained after described step 101 process.
5. the manufacture method of copper alloy tube according to claim 4, is characterized in that, in the process of described step 101 to described step 104, carry out inert gas shielding.
6. the manufacture method of the copper alloy tube according to any one of claim 1-5, it is characterized in that, in described step 104, by intensity of cooling when controlled rolling speed, the contraction percentage of area, rolling, the rolling temperature of described copper alloy tube in described planet tube grimper is remained on the recrystallization temperature of described copper alloy.
7. the manufacture method of copper alloy tube according to claim 6, is characterized in that, in described step 104, adopts emulsion to cool during rolling; Control described rolling temperature between 600 DEG C to 990 DEG C; Described planet tube grimper is the planet tube grimper of 2-6 roller.
8. the manufacture method of the copper alloy tube according to any one of claim 1-5, is characterized in that, in described step 104, cools fast or at room temperature naturally cool the pipe fitting after described planet tube grimper one-pass roller.
9. a copper alloy tube, is characterized in that, adopts the manufacture method of the copper alloy tube according to any one of claim 1-8 to make.
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| CN201310163998.2A CN103230961B (en) | 2013-05-03 | 2013-05-03 | The manufacture method of copper alloy tube and copper alloy tube |
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| CN115008141A (en) * | 2022-08-05 | 2022-09-06 | 江苏允能新材料科技有限公司 | Casting-rolling manufacturing method of brass pipe and brass pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6047586A (en) * | 1997-10-02 | 2000-04-11 | Alcatel | Method for manufacturing a metal tube with at least one optical fiber therein |
| CN1475316A (en) * | 2003-08-05 | 2004-02-18 | 江苏兴荣高新科技股份有限公司 | Method of manufacturing copper and copper alloy pipes using planetary tube mill |
| CN1480268A (en) * | 2003-08-06 | 2004-03-10 | 江苏兴荣高新科技股份有限公司 | Method for hot rolling tube of copper and copper alloy |
| EP1638152A1 (en) * | 2004-09-16 | 2006-03-22 | Bruker BioSpin AG | Method for producing a superconductive element |
| CN102776409A (en) * | 2012-08-24 | 2012-11-14 | 李伟 | Technology for preparing corrosion-resistant copper alloy |
| CN102974646A (en) * | 2012-12-20 | 2013-03-20 | 西南铝业（集团）有限责任公司 | Manufacturing process of aluminum alloy water-drop-shaped thin-wall tubular material |
-
2013
- 2013-05-03 CN CN201310163998.2A patent/CN103230961B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6047586A (en) * | 1997-10-02 | 2000-04-11 | Alcatel | Method for manufacturing a metal tube with at least one optical fiber therein |
| CN1475316A (en) * | 2003-08-05 | 2004-02-18 | 江苏兴荣高新科技股份有限公司 | Method of manufacturing copper and copper alloy pipes using planetary tube mill |
| CN1480268A (en) * | 2003-08-06 | 2004-03-10 | 江苏兴荣高新科技股份有限公司 | Method for hot rolling tube of copper and copper alloy |
| EP1638152A1 (en) * | 2004-09-16 | 2006-03-22 | Bruker BioSpin AG | Method for producing a superconductive element |
| CN102776409A (en) * | 2012-08-24 | 2012-11-14 | 李伟 | Technology for preparing corrosion-resistant copper alloy |
| CN102974646A (en) * | 2012-12-20 | 2013-03-20 | 西南铝业（集团）有限责任公司 | Manufacturing process of aluminum alloy water-drop-shaped thin-wall tubular material |
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Denomination of invention: Manufacturing method of copper alloy pipe and copper alloy pipe Effective date of registration: 20221206 Granted publication date: 20150909 Pledgee: China Merchants Bank Co.,Ltd. Changzhou Branch Pledgor: Jiangsu Xingrong Hi-Tech Co.,Ltd. Registration number: Y2022980025182 |