CN207770461U - A kind of titanium alloy hot seamless tube production system - Google Patents
A kind of titanium alloy hot seamless tube production system Download PDFInfo
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- CN207770461U CN207770461U CN201820131810.4U CN201820131810U CN207770461U CN 207770461 U CN207770461 U CN 207770461U CN 201820131810 U CN201820131810 U CN 201820131810U CN 207770461 U CN207770461 U CN 207770461U
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Abstract
The utility model is related to a kind of titanium alloy hot seamless tube production systems, belong to titanium alloy seamless pipe processing technique field, it solves to need the technical problem that applying coating, production difficulty are big, lumber recovery is low, this system in the titanium alloy seamless pipe operation of rolling to include setting gradually by production process route：Heating of pipe blank stove, punch, transition reheating furnace, three-roll pipe mill, test instrument on line area, Pierced billet reheating furnace, stretch reducing machine group, temperature adjustment tunnel, straightener and cold bed; it is cooled down through drilling/rolling, tube rolling rolling, stretch reducing, online thermal straightening and cold bed after pipe blanking; finished product titanium alloy hot seamless tube; electric furnace is respectively set in different phase in the operation of rolling, ensures to provide pipe reasonable rolling temperature for subsequent processing while quality of tube blank steel；It is not required to brushing protective materials in the operation of rolling, reduces by a procedure；Stringent rolling temperature control reduces resistance of deformation, reduces unit power consumption, cost-effective, improves the lumber recovery of titanium alloy tube.
Description
Technical field
The utility model belongs to titanium alloy seamless pipe processing technique field, more particularly to a kind of titanium alloy hot seamless tube life
Production system.
Background technology
Titanium or titanium alloy seamless pipe light weight, intensity are high, mechanical performance is superior, corrosion resistance and good, are mainly used for making
The electrode of aircraft engine compressor part and rocket, the structural member of guided missile and high-speed aircraft, electrolytic industry, the condensation in power station
Device, petroleum refining and the industry manufacture fields such as the heater of sea water desalination and environment pollution control device.Titanium or titanium alloy without
The main of slit-tube bores bore hole by extrusion forming, pipe or tiltedly pierces through the three classes production system of hole cold rolling cold-drawn.Extrusion forming
Lumber recovery is low, poor dimensional precision, and production cost is high；Pipe brill bore size precision is preferable, but high processing costs, production efficiency
It is low with lumber recovery；Although cold rolling cold-drawn lumber recovery is higher after roll piercing, intensity height, plasticity are poor under such titanium alloy room temperature,
Cold-rolling deformation drag is big, needs repeatedly to anneal repeatedly, low production efficiency, and production cost is high.Therefore titanium and titanium are directed in modern production
Alloy seamless pipe needs a kind of energy saving, efficient production system.
Titanium chemism is larger, with O, N, H, CO, CO in air2, vapor and ammonia chemically react, can generate
The hard such as TiC, TiN surface layer；Titanium absorbs the very high hardened layer of oxygen formation hardness at 600 DEG C or more, is generated due to absorbing gas
Hard crisp skin depth reach 0.1-0.15mm, hardenability increase 20%-30%.Titanium chemical affinity is big, and easily rub with tool table
Face generates sticking phenomenon.Titanium heats in nitrogen to burn, and protected during heating with argon gas.Titanium thermal coefficient is Fe
1/5, Ni 1/4, Al 1/14, and the thermal coefficient low about 50% of the thermal conductivity ratio titanium of various titanium alloys.The bullet of titanium alloy
Property modulus is about the 1/2 of steel, poor rigidity.
The physics and chemical characteristic of above-mentioned titanium determine that titanium alloy seamless pipe rolls difficulty than general steel pipe, aluminum pipe, magnesium
The rolling difficulty of the tubing such as compo pipe is much greater, and the rolling of titanium alloy seamless pipe is difficult to be obtained from the rolling mill practice of other tubing
Valuable reference.But also it is no lack of the technology of titanium alloy seamless pipe rolling in the prior art, such as patent name is " a kind of
The production technology of titanium or titanium alloy seamless pipe and material feeding structure in milling train foreground used "（Application No. is：201611093871.8）
And patent name is " a kind of preparation method of titanium alloy oil well pipe "（Application No. is：201611051807.3）Although all public
A kind of production technology of titanium or titanium alloy seamless pipe has been opened, but in order to inhibit the activity on pipe surface in hot procedure, institute
With needs " in titanium or titanium alloy blank surface brushing protective coating ", existing defect is：1, it is needed in protective coating a variety of
Different substances, 2, the technics comparing of brushing protective coating it is time-consuming, extend the production cycle of pipe fitting, increase the production of pipe fitting
Cost；Such as patent name is " a kind of hot rolling large-diameter thin-wall titanium alloy seamless pipe production technology "（Application No. is：
201611065459.5）Although adding maintenance tunnel, the work of maintenance tunnel between finish rolling hollow billet process and aligning process
With the function of being only heating heating, cannot according to the temperature of tube surface in actual production process, to pipe fitting carry out heating or
Cooling is handled, and pipe fitting is made really to meet the needs of pipe fitting surface temperature in aligning process in next step.In addition, existing mainstream titanium closes
Still titanium alloy tube is rolled using duo mill in the processing technology of golden seamless pipe, not only wall thickness reducing amount is small, lumber recovery is low, prolongs
It stretches that coefficient is small, also results in the titanium alloy tube surfaces externally and internally that production obtains and generate screw thread, the fixation of two rolling process centering guides is set
It sets so that titanium alloy tube operation of rolling China and foreign countries' surface tear even cracks, and roll spacing, which cannot be adjusted, to be caused to be easy to roll when rolling
Card.
Utility model content
The purpose of the utility model is to overcome the defect of the prior art, solves titanium alloy seamless pipe in the prior art and roll
The technical problem that applying coating, production difficulty are big, lumber recovery is low is needed in the process, and a kind of titanium alloy hot seamless tube production is provided
System.
The utility model is achieved by the following technical programs.
A kind of titanium alloy hot seamless tube production system, it includes the punch set gradually by production process route, three
Roll tube rolling mill, stretch reducing machine group, temperature adjustment tunnel, straightener and cold bed, further include electric furnace, and the electric furnace includes that pipe adds
Hot stove, transition reheating furnace and Pierced billet reheating furnace, wherein：Heating of pipe blank stove is set to the head end of production system, and pipe is through pipe
It is transported to punch middle punch rolling after base heating stove heat, the punch is two roller small-angle guide-roller type punches, and is worn
Hole machine axis direction is provided with three-roll pipe mill parallelly, is also set up between the tail end of punch and the head end of three-roll pipe mill
There are transition reheating furnace, the hollow forging after three-roll pipe mill rolling to be transported to test instrument on line area, be provided in the test instrument on line area
Warm resistive heater is mended, hollow forging test instrument on line is transported to Pierced billet reheating furnace in area after ageing treatment, and Pierced billet reheating furnace adds
Stretch reducing in stretch reducing machine group is transported to after hot hollow forging to stretch reducing temperature, the production tube after stretch reducing machine group sizing is through temperature adjustment tunnel
Road is transported in straightener and aligns, and the production tube after aligning is transported to cold bed cooling, and production tube after cooling is transported to production tube
Storage area stores；It is provided with resistive heater in the temperature adjustment tunnel, several fans, temperature adjustment tunnel are equidistantly provided in temperature adjustment tunnel
It is 600-700 DEG C that road, which adjusts production tube temperature,.
A kind of production technology of titanium alloy hot seamless tube production system, includes the following steps：
A, pipe blanking；
B, pipe inspection and reconditioning；
C, pipe heats in heating of pipe blank stove：
It is reducibility gas atmosphere in heating of pipe blank stove, heating of pipe blank stove heat stepwise pipe, the heat stepwise includes
Preheating section, bringing-up section and soaking zone, preheating section blank temperature are 500-650 DEG C, and preheating time is generally 30-90min；Bringing-up section
Blank temperature is 650-1100 DEG C, heating time 60-90min；Soaking zone blank temperature is 1100-1150 DEG C, soaking time
60-150min, drop temperature are 950-1120 DEG C；
D, two roller small-angle guide-roller type punch drilling/rolling：Wherein, 8-12 ° of feed angle is adjustable, and 5 ° of fixations of rolling angle are rolled
Roller rotating speed 40-80r/min is adjustable, roll rotational speed 40-60r/min when stinging pipe, and the seamless hollow billet of titanium alloy, hollow billet after perforation is made
Temperature is 900-1000 DEG C；
E, hollow billet reheats in transition reheating furnace：
Outer diameter and wall-thickness ratio are D/S after drilling/rolling, and as 10≤D/S ＜ 20, thick-wall titanium alloy is seamless, and hollow billet is direct
It is rolled by moving pipe device immigration subsequent processing；As 20≤D/S≤40, thin-wall titanium alloy is seamless, and hollow billet adds again in transition
It is reheated to 950-1050 DEG C in hot stove, then is rolled by moving pipe device immigration subsequent processing；
F, three-roll pipe mill rolls：Wherein, three-roll pipe mill roll off angle is 0-6 ° adjustable, and 8-10 ° of feed angle is adjustable, roll
Revolution is 60-120r/min, and rolling titanium alloy tube speed is 0.22m/s~0.50m/s, and the seamless hollow forging of titanium alloy is made；
G, hollow forging test instrument on line is handled：
Whether need ageing treatment that test instrument on line is handled point two lines according to hollow forging：When hollow forging needs to carry out at timeliness
When reason, hollow forging is as cold as 480-560 DEG C into test instrument on line area is hollow first, is then mended into benefit temperature in Pierced billet reheating furnace to 950 DEG C
When temperature to waste tube outer surface and the inner surface temperature difference is not more than ± 10 DEG C, hollow forging passes through Pierced billet reheating furnace into follow-up rolling process；
When hollow forging need not carry out ageing treatment, hollow forging is directly through Pierced billet reheating furnace into follow-up rolling process；
H, stretch reducing machine group rolls：Roll cooling water is closed in the stretch reducing machine group operation of rolling, after the completion of the rolling of stretch reducing machine group
The cooling water per rack is opened successively to cool down stretch reducing machine roll；
I, temperature adjustment tunnel temperature adjustment：Hot finished product seamless titanium alloy pipe blank temperature after being rolled according to stretch reducing machine group, temperature adjustment tunnel
Heating or cooling make the temperature that pipe needs in the follow-up aligning process of pipe satisfaction, pipe align process into follow-up；
J, hot production tube on-line straightening
Straightener straightening temperature section is 600-700 DEG C, and the maximum aligning speed of straightener is 0.5-0.8m/s, straightening roll
30 ° ± 3 ° of angle adjusting range, being more than 3/4 or more of barrel length to meet titanium alloy tube and straightening roll contact line length is
Standard, titanium alloy tube temperature is 550-600 DEG C after aligning；The straightener is that the online thermal straightening machine of six rollers or the online heat of seven rollers are rectified
Straight machine or the online thermal straightening machine of nine rollers；
K, the titanium alloy tube after aligning is cooled to room temperature on cold bed；
L, it by after cold bed titanium alloy tube sawing after cooling, flaw detection, hand inspection, is packaged into production tube storage area.
Further, in the step c, heating of pipe blank stove is step-by-step movement electric furnace or is annular electric furnace,
Reducibility gas in heating of pipe blank stove is argon gas.
Further, in the step c, each section of the heating time difference during heating of pipe blank stove heat stepwise
It is accordingly adjusted according to pipe outer diameter size.
Further, in the step c, the titanium alloy pipe to discharge after heat stepwise is in β phase regions, titanium alloy pipe
Resistance of deformation K is 65-120MPa.
Further, in the step d, the upper bottom guide in two roller small-angle guide-roller type punches is by guide wheel generation
It replaces.
Further, in the step d, the guide wheel is rotated by motor via reducer driving lead screw in copper nut
It realizes pressure and rises, adapt to the pipe of different tube diameters.
Further, in the step d and step e, drilling/rolling is all made of with roll cooling in the tube rolling operation of rolling
High-pressure water mist cools down, and nozzle is far from rolling entrance.
Further, in the step k, cold bed is walking beam cooler or is chain-type cooling bed.
The utility model has the advantages that compared with prior art.
1, titanium alloy rolling deformation temperature range is narrow, and stringent rolling temperature control reduces resistance of deformation, substantially reduces unit
Power consumption, it is cost-effective, while improving the lumber recovery of titanium alloy tube；
2, blank is not required to brushing protective materials, reduces by a procedure；
3, guide-roller type punch substitutes the upper bottom guide that conventional through-hole machine uses using upper and lower guide wheel, efficiently solves titanium conjunction
The metal sticking phenomenon that gold is generated due to the friction between rolling tool, rolling tool consumption are reduced；
4, further the hollow billet after perforation is carried out using three roller roller mills subtracting wall extension, rolling angle, feed angle etc. roll
Technical arrangement plan flexibility and reliability processed, units consumption is low compared with two roller roller mills, and pipe inside and outside surface quality is good.
Description of the drawings
Fig. 1 is the utility model production system overall structure diagram, and the arrow in figure indicates technological process direction.
Fig. 2 is two roller small-angle guide-roller type perforating roller of perforating machine system schematic diagrames in Fig. 1.
Fig. 3 is the utility model production technological process.
In figure, 1 is heating of pipe blank stove, and 2 be punch, and 3 be transition reheating furnace, and 4 be three-roll pipe mill, and 5 be online normal
Change area, 6 be Pierced billet reheating furnace, and 7 be stretch reducing machine group, and 8 be temperature adjustment tunnel, and 9 be straightener, and 10 be cold bed, and 21 be left roll, 22
It is hollow billet for upper block, 23,24 be lower tumbler, and 25 be right roll, and 26 be high-pressure water mist cooling nozzles.
Specific implementation mode
It elaborates to the utility model with reference to embodiment：The present embodiment is to be with technical solutions of the utility model
Premise is implemented, and gives detailed embodiment and specific operating process, but the scope of protection of the utility model is unlimited
In the following examples.
As depicted in figs. 1 and 2, a kind of titanium alloy hot seamless tube production system in the present embodiment, it includes by production
Punch 2, three-roll pipe mill 4, stretch reducing machine group 7, temperature adjustment tunnel 8, straightener 9 and the cold bed 10 that process route is set gradually, also
Including electric furnace, the electric furnace includes heating of pipe blank stove 1, transition reheating furnace 3 and Pierced billet reheating furnace 6, wherein：Pipe
Base heating furnace 1 is set to the head end of production system, and pipe is transported to 2 middle punch of punch rolling after the heating of heating of pipe blank stove 1,
The punch 2 is two roller small-angle guide-roller type punches, is provided with three-roll pipe mill parallelly with 2 axis direction of punch
4, transition reheating furnace 3 is additionally provided between the tail end and the head end of three-roll pipe mill 4 of punch 2, after three-roll pipe mill 4 rolls
Hollow forging be transported to test instrument on line area 5, the warm resistive heater of benefit, hollow forging test instrument on line area 5 are provided in the test instrument on line area 5
Middle that Pierced billet reheating furnace 6 is transported to after ageing treatment, Pierced billet reheating furnace 6 is transported to after heating hollow forging to stretch reducing temperature
Stretch reducing in stretch reducing machine group 7, the production tube after 7 sizing of stretch reducing machine group, which is transported to through temperature adjustment tunnel 8 in straightener 9, to be aligned, and is rectified
Production tube after straight is transported to the cooling of cold bed 10, and production tube after cooling is transported to the storage of production tube storage area；The temperature adjustment tunnel
It is provided with resistive heater in road 8, several fans are equidistantly provided in temperature adjustment tunnel 8, temperature adjustment tunnel 8 adjusts production tube temperature and is
600-700℃。
It is shown in Fig. 3 just like kind of a production technology for titanium alloy hot seamless tube production system, include the following steps：
A, pipe blanking.
B, pipe inspection and reconditioning.
C, pipe heats in heating of pipe blank stove 1：
Since titanium chemism is larger, with the O in air2、N、H2、CO、CO2It chemically reacts, can generate with vapor
The hard such as TiC, TiN surface layer, therefore electric furnace is used, electric furnace can be step-by-step movement electric furnace and annular electric furnace.
Heating furnace uses micro- reducibility gas environment, and reducibility gas is argon gas.It prevents pipe surface from generating hard surface layer, influences to perforate
Machine stings steel, also avoids hard surface layer fragment and is pressed into generation defect in tube body during the rolling process.Difference with existing patent is
It saves to the process of pipe brushing protective coating；
Titanium thermal coefficient is the 1/14 of 1/4, the Al of 1/5, the Ni of Fe, and the heat conduction of the thermal conductivity ratio titanium of various titanium alloys
Coefficient low about 50%.Furnace power output power gradient is automatically adjusted using industry control program using electric furnace, realizes pipe in stove
The temperature-controllable of interior each bringing-up section.It is reducibility gas atmosphere in heating of pipe blank stove 1,1 heat stepwise pipe of heating of pipe blank stove,
The heat stepwise includes preheating section, bringing-up section and soaking zone, and preheating section blank temperature is 500-650 DEG C, and preheating time is general
For 30-90min；Bringing-up section blank temperature is 650-1100 DEG C, heating time 60-90min；Soaking zone blank temperature is
1100-1150 DEG C, soaking time 60-150min, drop temperature is 950-1120 DEG C；Heating time and pipe outer diameter are related greatly.
Drop temperature is 950-1120 DEG C, and titanium alloy is in β phase regions at this time, and resistance of deformation K is about 65-120MPa.
D, two roller small-angle guide-roller type punches, 2 drilling/rolling, hollow billet temperature is 900-1000 DEG C after perforation.
Feature 1：Roll uses small-angle tapered roller.Roller shape influences metal flow direction when barrel roll rolls, to metal stream
It is dynamic to form reaction force, it is unfavorable for metal flow, is also easy to produce infolding phenomenon.Appearance in pipe is easily formed when barrel roll rolling simultaneously
Surface helix line.Tapered roller is five sections of roller shapes, there is rolloff band, solves the problems, such as barrel roll helix, while tapered roller body of roll edge is rolled
The component velocity in line direction processed gradually increases, and the speed for adapting to pipe increases, and does not have reaction force to pipe.Bullet based on titanium alloy
Property modulus be about the 1/2 of steel, poor rigidity, mutability should not make thin-wall tube, therefore use small-angle tapered roller, 8-12 ° of feed angle
It is adjustable, 5 ° of fixations of rolling angle.To prevent titanium alloy from generating processing hardening phenomenon during the rolling process, is rolled, rolled using the slow-speed of revolution
Roller rotating speed 40-80r/min is adjustable, roll rotational speed 40-60r/min when stinging pipe, and the seamless hollow billet of titanium alloy is made；
Feature 2：Since titanium chemical affinity is big, easily sticking phenomenon is generated with tool friction surface.Two rollers of titanium alloy tube
Small-angle guide-roller type punch using upper and lower guide wheel substitute conventional through-hole machine use upper bottom guide, efficiently solve titanium alloy by
Friction between rolling tool and the metal sticking phenomenon generated, upper and lower guide wheel are existed by motor via reducer driving lead screw
Rotation is realized pressure and is risen to adapt to different pipes in copper nut；
Feature 3：Titanium chemism is larger, is easily chemically reacted with water and steam, generates cementation zone, while easily
Cause hollow billet surface fine crack.During the rolling process roll cooling using high-pressure water mist cool down, arrangement as shown in Fig. 2,
Nozzle ensures that roller roll surface in rolling is dried far from rolling entrance.
E, outer diameter and wall-thickness ratio are D/S after drilling/rolling, and as 10≤D/S ＜ 20, thick-wall titanium alloy is seamless, and hollow billet is straight
Shifting pipe device immigration subsequent processing was connected to be rolled；As 20≤D/S≤40, thin-wall titanium alloy is seamless hollow billet transition again
It is reheated to 950-1050 DEG C in heating furnace 3, then is rolled by moving pipe device immigration subsequent processing；
F, three-roll pipe mill 4 rolls：
Three-roll pipe mill is arranged in by three belt roller shoulders using roll line as the vertex of the equilateral triangle of the centre of form, roll mandrel
Line is with roll line at two angles of inclination.Roll axis tilts a feed angle in vertical direction and roll line, for realizing spiral shell
Rotation rolling；Interlock with roll line a roll off angle in the horizontal direction.In the pass that three rolls and a plug are surrounded, by
The hollow billet sent of perforating is sleeved on long plug, is sent into pipe mill and is rolled with supply bobbin device；Hollow billet is in deformed area through biting, subtracting wall
（Tube reducing simultaneously）, it is smooth and return circle and become hollow forging.When oblique milling screw rolling metal in deformed area by roll and plug
Period continuous action and the variation for generating shape and size.Deformation of rolled wire be actually from justifying to justifying triangle again to round process.
It is than three-roll pipe mill advantage with two-roller mill：Product accuracy is high, because of the oblique milling of cored bar, in a time
Multiple spreading effect, makes wall thickness accuracy greatly improve；Flexibility is big in production, and pass ruler just can be changed by the clutch of roll
It is very little, it has an enormous advantage to tissue production；Deposit of tools quantity is few.
When rolling titanium alloy tube, roll is in low speed rotation before starting to bite, after hollow billet enters roll with plug
Start once to bite, titanium alloy tube hollow billet is only diametrically being compressed at this moment, as steel pipe advances, is opened in the shoulder of roll
Beginning hollow billet inner surface contact mandrel surface carries out subtracting wall, realizes secondary bite.It normally bites rear roll rotational speed and is increased to setting
Mill speed carries out high-speed rolling.Roll rotational speed drops back to low speed after the end of rolling.Usual biting speed is mill speed
70% 。
When producing the titanium alloy tube of D/S ＞ 16, to prevent hollow forging front end from generating flare, stung by roll in hollow billet
Before entering, for topping roll under the action of quick-opening device, roll gap is more slightly larger than normal rolling roll gap, when the shoulder that hollow billet head passes through roll
Afterwards, topping roll quickly recovers to normal rolling position.It is about 0.3 second to depress actuation time.
Titanium alloy tube is 0-6 ° adjustable with 4 roll off angle of three-roll pipe mill, feed angle：0-12 ° adjustable, and feed angle increases, and rolls
Muzzle velocity processed is accelerated, and expanding value increases, but as the increase of feed angle, rolling stability reduce, wall unevenness is in increase
Trend easy tos produce internal thread.Therefore it is sent using smaller using larger feed angle, thin-wall tube production when producing thick-walled pipe
Into angle.But feed angle is also unsuitable too small when producing thin-wall tube, because feed angle is too small, mill speed is slow, especially thin-walled
Guan Shi, rolling time is long to be easy to cause the increasing of steel pipe head and tail temperature difference, the wall unevenness being formed on length of steel pipe direction.
Influence of the roll revolution to steel pipe is consistent with the influence of feed angle.In the case of in view of milling train force-power parameter,
When rolling titanium alloy tube, lower roll revolution 60-120r/min, and 8-10 ° smaller of feed angle should be used, titanium alloy is rolled
The seamless hollow forging of titanium alloy is made in pipe speed 0.22m/s~0.50m/s.
Three-high mill strictly controls roll cooling water, the roll type of cooling and piercer roll cooling side during the rolling process
Formula is identical.
G, hollow forging test instrument on line is handled：
Whether need ageing treatment that test instrument on line is handled point two lines according to hollow forging：When hollow forging needs to carry out at timeliness
When reason, hollow forging is as cold as 480-560 DEG C into test instrument on line area 5 is hollow first, then into benefit temperature in Pierced billet reheating furnace 6 to 950 DEG C,
When benefit temperature to waste tube outer surface and the inner surface temperature difference is not more than ± 10 DEG C, hollow forging passes through Pierced billet reheating furnace 6 to roll work into follow-up
Sequence；When hollow forging need not carry out ageing treatment, hollow forging is directly through Pierced billet reheating furnace 6 into follow-up rolling process.
H, stretch reducing machine group 7 rolls：
The process that the process subtracted is a hollow body tandem rolling is opened, other than playing sizing, also requires have larger subtract
Diameter rate, in addition to this, stretch reducing also require to realize the purpose for subtracting wall by establishing tension between each rack.
Hollow forging is come out of the stove after reheating electric furnace and being heated to 950 DEG C, is exported in furnace delivery table and is carried out surface temperature measurement.Titanium alloy tube
Driven separately is used with stretch reducing machine group 7, cannot be come by adjusting main Overlap electric machine because the characteristics of collective's differential gearing determines
So that each rack is reached an ideal speed, ensures that titanium alloy tube does not occur processing hardening phenomenon during the rolling process.So rolling
It during system, can only ensure some tension by rationally adjusting the rotating speed of each motor under the equal principle of second flow, carry out
Wall thickness is finely tuned（Generally 0.5mm is not exceeded）.
Roll cooling water is strictly controlled during the rolling process, roll cooling water is closed during the rolling process, after the completion of rolling
The cooling water per rack is opened successively to cool down roll.
I, 8 temperature adjustment of temperature adjustment tunnel：
When rolling titanium alloy tube, since heat dissipation metal is efficient, and requirement of each technique to temperature range is very small,
Traditional roller-way upload is sent, and is unable to control scattering and disappearing for its heat, also just be cannot be satisfied its requirement of lower one of the technique to temperature, to
Cause the seamless pipe rolled out that its performance requirement is not achieved.
Titanium alloy aligning uses thermal straightening, and straightening temperature section is 600-700 DEG C, and the tube temperature after stretch reducing machine rolls
It it is 800-900 DEG C, pipe needs to regulate and control tube temperature by temperature adjustment tunnel, ensures that pipe meets in follow-up aligning process
The temperature that pipe needs, temperature adjustment tunnel use Electric heating.Temperature regulate and control system depending on titanium alloy tube material, prevent by
In the unreasonable influence titanium alloy metallographic variation of the variation of temperature.
J, hot production tube on-line straightening
Straightener main function is aligned to supplied materials steel pipe, eliminates steel pipe in rolling, transport, heat treatment and cooled
The bending generated in journey makes steel pipe directly spend and meets related request, while playing and returning round effect to steel pipe, ensures pipe end and steel pipe
Outer surface quality.
9 straightening temperature section of straightener is 600-700 DEG C, and the maximum aligning speed of straightener 9 is 0.5-0.8m/s, aligning
30 ° ± 3 ° of roller angle adjusting range, being more than 3/4 or more of barrel length to meet titanium alloy tube and straightening roll contact line length is
Standard, titanium alloy tube temperature is 550-600 DEG C after aligning；The straightener 9 is that the online thermal straightening machine of six rollers or seven rollers are warm online
Straightener or the online thermal straightening machine of nine rollers.
K, the titanium alloy tube after aligning is cooled to room temperature on cold bed 10；
L, it by after 10 titanium alloy tube sawing after cooling of cold bed, flaw detection, hand inspection, is packaged into production tube storage area.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
It is any to be familiar with those skilled in the art within the technical scope disclosed by the utility model in this, the variation that can be readily occurred in
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (5)
1. a kind of titanium alloy hot seamless tube production system, it includes the punch set gradually by production process route（2）, three
Roll tube rolling mill（4）, stretch reducing machine group（7）, temperature adjustment tunnel（8）, straightener（9）And cold bed（10）, further include electric furnace, the electricity
Heating furnace includes heating of pipe blank stove（1）, transition reheating furnace（3）And Pierced billet reheating furnace（6）, it is characterised in that：Heating of pipe blank
Stove（1）It is set to the head end of production system, pipe is through heating of pipe blank stove（1）Punch is transported to after heating（2）Middle punch rolls,
The punch（2）For two roller small-angle guide-roller type punches, with punch（2）Axis direction is provided with three rollings parallelly
Pipe machine（4）, punch（2）Tail end and three-roll pipe mill（4）Head end between be additionally provided with transition reheating furnace（3）, three rollers
Pipe mill（4）Hollow forging after rolling is transported to test instrument on line area（5）, the test instrument on line area（5）In be provided with benefit temperature heating electricity
Hinder silk, hollow forging test instrument on line area（5）It is middle that Pierced billet reheating furnace is transported to after ageing treatment（6）, Pierced billet reheating furnace（6）Heating
Stretch reducing machine group is transported to after hollow forging to stretch reducing temperature（7）Middle stretch reducing, stretch reducing machine group（7）Production tube after sizing is through adjusting
Warm tunnel（8）It is transported to straightener（9）Middle aligning, the production tube after aligning are transported to cold bed（10）It is cooling, finished product after cooling
Pipe is transported to the storage of production tube storage area；The temperature adjustment tunnel（8）In be provided with resistive heater, temperature adjustment tunnel（8）In it is equidistant
It is provided with several air cooling devices.
2. a kind of titanium alloy hot seamless tube production system according to claim 1, it is characterised in that：The heating of pipe blank
Stove（1）For step-by-step movement electric furnace or it is annular electric furnace.
3. a kind of titanium alloy hot seamless tube production system according to claim 2, it is characterised in that：The two rollers conelet
Angle guide-roller type punch（2）In upper bottom guide replaced by guide wheel.
4. a kind of titanium alloy hot seamless tube production system according to claim 3, it is characterised in that：The guide wheel is by electricity
Machine drives lead screw to rotate realization pressure in copper nut and rise by speed reducer, adapts to the pipe of different tube diameters.
5. a kind of titanium alloy hot seamless tube production system according to claim 1, it is characterised in that：The cold bed（10）
For walking beam cooler or it is chain-type cooling bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820131810.4U CN207770461U (en) | 2018-01-26 | 2018-01-26 | A kind of titanium alloy hot seamless tube production system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820131810.4U CN207770461U (en) | 2018-01-26 | 2018-01-26 | A kind of titanium alloy hot seamless tube production system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108160709A (en) * | 2018-01-26 | 2018-06-15 | 张国庆 | A kind of titanium alloy hot seamless tube production system and its production technology |
| CN110170543A (en) * | 2019-05-21 | 2019-08-27 | 北京科技大学 | A kind of titanium alloy seamless pipe short route processing method |
| CN110935729A (en) * | 2019-10-26 | 2020-03-31 | 鑫鹏源智能装备集团有限公司 | Titanium alloy hot-rolled seamless tube production system and production process thereof |
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2018
- 2018-01-26 CN CN201820131810.4U patent/CN207770461U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108160709A (en) * | 2018-01-26 | 2018-06-15 | 张国庆 | A kind of titanium alloy hot seamless tube production system and its production technology |
| CN108160709B (en) * | 2018-01-26 | 2023-10-20 | 张国庆 | Titanium alloy hot-rolled seamless pipe production system and production process thereof |
| CN110170543A (en) * | 2019-05-21 | 2019-08-27 | 北京科技大学 | A kind of titanium alloy seamless pipe short route processing method |
| CN110935729A (en) * | 2019-10-26 | 2020-03-31 | 鑫鹏源智能装备集团有限公司 | Titanium alloy hot-rolled seamless tube production system and production process thereof |
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