CN106660087A - Compact plant for rolling seamless tubes - Google Patents
Compact plant for rolling seamless tubes Download PDFInfo
- Publication number
- CN106660087A CN106660087A CN201580041870.6A CN201580041870A CN106660087A CN 106660087 A CN106660087 A CN 106660087A CN 201580041870 A CN201580041870 A CN 201580041870A CN 106660087 A CN106660087 A CN 106660087A
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- Prior art keywords
- rolling
- grinding machine
- heart axle
- bar
- thromboembolism
- Prior art date
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- 238000005096 rolling process Methods 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000000227 grinding Methods 0.000 claims description 93
- 238000005553 drilling Methods 0.000 claims description 57
- 208000005189 Embolism Diseases 0.000 claims description 40
- 208000001435 Thromboembolism Diseases 0.000 claims description 40
- 238000003801 milling Methods 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 9
- 239000000284 extract Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
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- 230000008901 benefit Effects 0.000 description 10
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- 238000006073 displacement reaction Methods 0.000 description 7
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- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
- B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Control Of Metal Rolling (AREA)
- Physical Vapour Deposition (AREA)
Abstract
The present invention relates to a compact plant (10) for rolling a seamless tube. The plant comprises a rotary piercer (20) which defines a rolling axis XPR and is designed to pierce a billet (11) pressed against a plug (22) mounted on a rod so as to obtain a pierced blank (12). The rod is connected to a thrust block (26) designed to oppose the axial thrust during piercing. The plant also comprises a longitudinal mill (30) which defines a rolling axis XLL and is designed to roll the pierced blank (12) on a mandrel (32) so as to obtain a semi-finished tube (13). The mandrel is connected to a retaining block (34) designed to impart to the mandrel a predetermined speed during rolling. In the plant (10) according to the invention the rolling axes XPR and XLL coincide. The invention also relates to a method for rolling a seamless tube.
Description
Technical field
The present invention relates to a kind of compact apparatus for rolling pipe, particularly for the compact apparatus of rolling seamless pipe.This
Invention further relates to a kind of method for the rolling operation.
Background technology
It is known that seamless metal pipe is produced by the continuous plastic deformation of billet.Will in stove during first step
Billet is heated to about 1280 DEG C.Then billet is supplied to circular bit, the circular bit include a pair of inclined shaft rollers and
Thromboembolism on bar.Roller promotes billet axially towards thromboembolism so that billet is drilled along its longitudinal axis.Therefore obtain
Semi-finished product (being referred to as drill blank or hollow body) are obtained, the semi-finished product have heavy wall and length is the length of initial billet
1.5 to 4 times.Then make drilling blank lateral displacement and therefrom extract thromboembolism and bar out to grasp for follow-up rolling so as to insert
The heart axle of work.The function of heart axle is internally to resist the radial thrust applied in roll milling process so that tube wall is thinning.
For the lateral displacement of blank, the removal of thromboembolism and the insertion of heart axle these operations of completing to drill, need a certain amount of
Time.During this period, the blank that drills undergoes the effect of air, and air especially causes the temperature drop of drilling blank
It is low.Additionally, the effect of the oxygen in air causes the rapid oxidation on surface.For this reason, deoxidation material is usually used (for example
Borax etc.) processed (i.e. deoxidation process).
As described above, and then by the heart axle insertion drilling blank for the operation of follow-up rolling.Drilling blank and then reality
On through the multistation rolling grinding machine (hereinafter referred to as " longitudinal grinding machine ") with longitudinal material flowing, the multistation rolling grinding machine energy
It is enough to pass through suitably to reduce external diameter so that wall is gradually thinning, therefore increases the length of finished product.As known, the rolling grinding machine
Including multiple rolling units.Each unit includes station, and the roller with shaping groove is installed on the station.One group of the groove of roller
Connection contour limit is rolled the exterior contour of the pipe of unit release.In the downstream of longitudinal grinding machine, it is necessary to take out from heart axle first
Outlet pipe.According to prior art, the operation (is referred to as taking out pipe mill by another rolling grinding machine generally with three or more stations
Machine) carry out.Taking out tube mill is slightly reduced the external diameter of pipe, and its main purpose is to make heart axle carry out necessary stroke so as to give birth to from just
Extract out in the semifinished tube (being referred to as " main pipe ") of product.
Finally, pipe must be sized so as to more accurately limit its external diameter.
Can be performed by the stand-alone machine (being known respectively as taking out tube mill, tube reducing grinding machine and sizing grinding machine) of respective numbers
These functions.More generally, individual machine and multiple functions can be performed, therefore for example obtain take out pipe/tube reducing grinding machine or tube reducing/
Sizing grinding machine.
Then pipe must only undergo detection operation and/or finishing operation.Detection operation can include for example using ultrasound wave
Non-destructive pressure test and inspection.Finishing operation and can include cutting sizing, cleaning, japanning and labelling.
Above-described complete operation constitutes the core of pipe production technology, actually at the end of these operations, defines
The principal character (i.e. wall thickness and external diameter) of pipe.In the corresponding way, by circular bit, longitudinal grinding machine, take out tube mill, tube reducing mill
The component of machine and/or sizing grinding machine composition defines the major part of device, also referred to as technology segment.Production scene is in building
Integral layout in terms of engineering and Structural Engineering must be based on technology segment and be designed.
On the other hand, detect that operation and/or the facility needed for finishing operation can be generally arranged at the major part of device
Around and substantially do not constrained.
Known crossing current rolling (carrying out in boring machine) is true with the combination of vertical stream rolling (carrying out in multistation rolling grinding machine)
The qualitative characteristics for protecting final products are various better than the type (i.e. with two boring machines) rolled by using horizontal double roller
The qualitative characteristics that construction is obtained.
It is known that close to rolling grinding machine downstream the rolling for keeping and extracting out heart axle online guarantees the quality and reliability of finished product
Much larger than other known construction, freely and subsequently heart axle is carried out in other known construction central shaft release and/or offline
Extraction.
It is known that multistation longitudinal direction rolling is applied to and obtain high diameter/thickness ratio, wherein " diameter/thickness ratio " is understood
For the ratio between the external diameter and the thickness of tube wall of expression pipe.Especially, the diameter/thickness ratio for being obtained by multistation longitudinal direction rolling
The value of about 48-50 is reached, i.e., far above the ratio obtained using other inhomogeneity constructions, for example, acquisition is rolled using crossing current double roller
Ratio is typically smaller than 30-35.
Although the known devices of the above-mentioned type are extensively set up, unsatisfactory on the whole.
Normally, described device is designed to realize optimal pipe production with great scale (such as 500,000 ton/year).Mirror
In the large-scale production and for complete exploitation scale economy, it is known that the device of type produce so-called pair of length half into
QC, i.e. length are up to about 32 meters.All sizes of obvious device must be based on the final pipe size and be defined.The size and
Other parameters for example cause the main building of production scene have the size of the market size that is above standard.Such building can
So that for example there is the main span for being close to 45 meters away from the length with size more than 900 meters.As those skilled in the art clearly can manage
Solution, because there is no the pre-constructed unit with the size, need to construct ad hoc crossbeam structure therefore close to 45 meters of spans
Make and bridge crane.
Equally for those reasons, the construction (include civil engineering and Structural Engineering) of whole device needs huge initial
Investment, therefore economic benefit is only just can ensure that in above-mentioned large-scale production.
In addition to this large-scale production device, also exist for small-scale production (50,000 tons/year or less)
Device.These devices need much smaller initial outlay and are typically employed in product yield and production process costs per ton
The aspect older and lower technology of efficiency.
The said apparatus for being designed to large-scale production are also affected by other problems.For example, blank will be drilled from brill
Hole machine is transported to longitudinal grinding machine may need 50 seconds to 70 seconds.During the time, drilling blank tends to environment dissipate
Heat, thus under conditions of substantially cooler (depend on it is described drilling blank shape generally about 1050 DEG C and about 1150 DEG C it
Between at a temperature of) reach longitudinal grinding machine.It is apparent that the temperature drop of drilling blank is more, it is necessary to applied by rolling grinding machine
It is more that power increases, so as to obtain desired material plasticity deformation.The value of power to be applied determines the actuator of rolling grinding machine
Power consumption with the size and rolling grinding machine of motor in roll milling process.
As described above, when the thromboembolism of circular bit is extracted, the inner chamber of the blank that drills is hit by surrounding air flowing
Hit, the oxygen content of surrounding air is inevitably resulted in and forms oxide layer on the inner surface of drilling blank.Must be prevented from the effect
Should, can cause to form unacceptable defect during subsequent process steps because of the presence of pipe internal oxidation layer.For
The purpose, the inside of the blank that drills are processed with antioxidant (such as Borax or similar substance).As people in the art
What member will be readily understood that, due to the toxicity of material used, therefore the commercial Application of these materials causes Environmental security and workman
The subject matter of safety.
In addition, the needs of anti-oxidant treatment have been negatively affected with drilling blank between circular bit and longitudinal grinding machine
Transfer time and the holistic cost of production routine.
The content of the invention
Therefore it is an object of the present invention at least partly overcome disadvantages mentioned above associated with the prior art.
Especially, task of the invention is to provide the more compact device for rolling seamless pipe.
In addition, the task of the present invention is to provide the device for hot rolling seamless pipe, described device is from due to normally giving birth to
Reduction reaction, power consumption during product and from the point of view of the environmental point of view of gasoline consumption, emission level and pollutant it is
Sustainable development.
In addition, the task of the present invention is to provide the compact apparatus for rolling seamless pipe, described device can be avoided or extremely
It is few to reduce the negative effect that drilling blank is exposed to air, thus reduce the formation of oxide layer and increase the yield of device.
Finally, task of the invention is to provide the compact apparatus for rolling seamless pipe, described device need it is less just
Beginning invests and causes to keep low running cost.
Above-mentioned purpose is realized by device according to claim 1 and method according to claim 12 and is appointed
Business.
Description of the drawings
Description by the multiple embodiments provided below with reference to accompanying drawing is presented by the feature and further advantage of the present invention,
The embodiment is provided by way of non-limiting example, in the accompanying drawings：
- Fig. 1 shows the plane graph of the complete roll milling apparatus according to prior art；
- Fig. 2 showing the plane graph of complete roll milling apparatus of the invention with Fig. 1 identical ratios；
- Fig. 3 shows the technology segment of the device according to prior art represented by the III of Fig. 1；
- Fig. 4 showing the technology segment of the device of the invention represented by the IV of Fig. 2 with Fig. 3 identical ratios；
- Fig. 5 shows the plane graph of the of the invention device similar to Fig. 4；
- Fig. 6 shows the detail view of the device part of the invention represented by the VI of Fig. 5；
- Fig. 7 shows the possible variant form of device shown in Fig. 6；
- Fig. 8 shows another possible variant form of the device according to Fig. 6；
- Fig. 9 shows the heart axle used in some devices of the invention；
- Figure 10 shows the bar used in some devices of the invention；
- Figure 11 shows a type of heart axle/bar assembly used in some devices of the invention；
- Figure 12 shows the another type of heart axle/bar assembly used in some devices of the invention.
Specific embodiment
Device for rolling seamless pipe of the invention is represented with 10 on the whole.Which includes：
- circular bit 20, the circular bit 20 include two inclined shaft rolls and the thromboembolism 22 on bar 24,
Circular bit 20 limits rolling axis XPRAnd be designed to：
- solid billet 11 is received in its porch,
- billet 11 is drilled towards thromboembolism 22, and
- release is bonded on the drilling blank 12 on the bar 24 of thromboembolism 22；
Wherein, the bar 24 of the thromboembolism 22 of circular bit 20 is connected to thrust block seat 26, and the thrust block seat 26 is designed to opposing
The axial thrust produced on bar 24 in boring procedure；
- longitudinal grinding machine 30, longitudinal grinding machine 30 include multiple rolling stations 32 with adjustable roller, and longitudinal grinding machine 30 is limited
Fixed roll rolls axis XLLAnd be designed to：
- the drilling blank 12 discharged by circular bit 20 is received in its porch；
- on heart axle 32 rolling drilling blank 12, and
- release semifinished tube 13,
Wherein, the heart axle 32 of longitudinal grinding machine 30 is connected to holding seat 34, and the holding seat 34 is designed in roll milling process
Give heart axle 32 predetermined speed.
In addition in compact apparatus of the invention 10, rolling axis XPRAnd XLLUnanimously.
With reference to roll milling apparatus 10, therefore rolling axis can be particularly limited to.Therefore " axial direction " or " longitudinal direction " represent parallel to
The rectilinear direction of axis.Similarly, it is " horizontal " to represent the rectilinear direction for being not parallel to axis.Finally, " lateral " or " vertical " table
Show perpendicular to the half line direction of rolling axis.
In addition, procedure of processing is particularly limited to rolling direction.The statement of such as " before ", " front ", " upstream " etc. represents edge
The position that rolling axis are relatively close to device starting point.On the other hand, for example statement table of " afterwards ", " rear ", " downstream " etc.
Show along rolling axis and be relatively close to the position of device terminal.
As described above, in circular bit 20, the rotation axiss of roll are inclined." inclined shaft " is for limiting such machine
Device：The axis of roll is not parallel each other and is not located in same level.These machines are also defined as " horizontal rolling " machine.Separately
On the one hand, rolling grinding machine 30 for so-called " longitudinal rolling " type machine, each station roll axis positioned at rolling axle
In the orthogonal same level of line.
Rolling axis XPRAnd XLLUnanimously mean that from circular bit 20 the drilling blank 12 discharged directly can be supplied
Its lateral displacement should need not be made to longitudinal grinding machine 30.Still the drilling blank 12 being bonded on the bar 24 of circular bit 20 leads to
Cross simply to move axially and reach in the way of simply and rapidly near the heart axle 32 of longitudinal grinding machine 30.Can preferably by suitable
Known device carry out the axial movement, for example, the equipment can be commonly referred to as " pinch roll " to nonexcludability
The motor driven rolls of pressure type or similar type.
Some embodiments of device of the invention 10, the exit of circular bit 20 vertically with heart axle 32
The bar 24 of alignment and the end directly contact of heart axle 32.Therefore drilling blank 12 can from bar 24 directly slide into heart axle 32 so as to
Can be carried away to carry out longitudinal rolling.
Some embodiments of device of the invention 10, the bar 24 of circular bit 20 are structurally connected to longitudinal direction
The heart axle 32 of grinding machine 30.The program allows the movement for simplifying instrument (i.e. two instruments), because the institute during operating procedure
It is connected to each other with stating tool construction.The perfect alignment of two instruments can also be realized in this way, and this causes the base that drills
Material 12 is easily shifted without there is undesirable difficulty.
Especially, (wherein, bar 24 is structurally connected to heart axle and 32) advantageously can use the embodiment of device 10
Two schemes.According to the first string, bar 24 and heart axle 32 are integrally formed, and according to second scheme, bar 24 and heart axle 32
It is releasably coupled together.Two schemes have particular advantage and positive feature, can select one according to specific needs
Individual scheme rather than another scheme.
With regard to heart axle 32 and bar 24 or the hereinafter referred to as individual tool of " heart axle/bar assembly 324 ", it is necessary to consider such as lower section
Face：Roll milling apparatus of the invention 10 are preferably designed to the semifinished tube that rolling list length pipe, i.e. length are for about 15 meters.As
Those skilled in the art pass through what accompanying drawing 5 will be readily understood that, all key dimensions based on the dimension limitation device 10.Consider
To the ratio of elongation of the final size and each procedure of processing of pipe, about 8 meters of bar 24 of length and the pact of heart axle 32 can be limited
15 meters of length.
In consideration of it, can easily understand that in the case where determining to use heart axle/bar assembly 324, the work how is controlled
Tool does not just result in any problem.In fact, the distance between circular bit 20 and longitudinal grinding machine 30 are more than above-mentioned heart axle/bar
The total length of component 324, therefore heart axle/bar assembly 324 is easily moved (include shifted laterally), so as to for example in urgent feelings
Rolling or the transformation after emptying are carried out under condition.
In addition, the instrument may have the total length less than 25 meters, thus it is logical with the conventional equipment of the double length pipes of production
The length of the heart axle for often using is consistent.
In addition, the conventional mandrel suitable compared to length and weight, heart axle/bar assembly 324 represents more economical scheme.
Actually conventional mandrel must have the Jing for being referred to as " valuable part " 320 for almost extending on its whole outer surface to process table
Face (such as chromium plating or have similar finishing).On the other hand, heart axle/bar assembly 324 only need to be in the outer of the part for serving as heart axle 32
There is on surface treated surface, and the part for serving as bar 24 need not carry out any this kind of process (referring further to Figure 11 and Figure 12).
With regard to the detailed operation of device 10, the bar 24 of the thromboembolism 22 of circular bit 20 is connected to stopping for preferred electro-mechanical kind
Push away seat 26.In view of boring machine 20 is supplied solid parts (usually billet), thrust block seat 26 is advantageously located under boring machine 20
Trip is (referring particularly to Fig. 6).In this way, drilling causes the axial compressive force in bar 24.The thrust block seat 26 is advantageously comprised
The first grip unit 260 on the first axial bearing unit 262.First grip unit 260 is specifically designed to supporting rod
And axial thrust is transferred to into the first axial bearing unit 262.Particularly importantly produce on bar 24 in boring procedure
The transfer of axial thrust.Actually in boring procedure, roller promotes billet 11 towards thromboembolism 22 and thrust is transferred to via bar 24
First grip unit 260 is then passed to the first axial bearing unit 262.First axial bearing unit 262 be designed to successively by
The thrust is transferred to ground.Additionally, thrust/holding seat 26 be also designed to give 22 rolling of bar 24 and thromboembolism before and after needed for shifting
It is dynamic.First axial bearing unit 262 is actually designed to make the first grip unit 260 move together with bar 24 and thromboembolism 22.
These movements carry out in the axial direction and are designed to make thromboembolism 22 be moved to operating position from resting position, and vice versa.
According to some embodiments, the first grip unit 260 is also designed so that bar 24 and thromboembolism 22 surround rolling axis
XPRCarry out pre-rotation.The probability for obtaining the pre-rotation of thromboembolism 22 in some cases is particularly advantageous, because which is with known
Mode cause promote billet drilling.
In turn, the heart axle 32 of longitudinal grinding machine is connected to the holding seat 34 it is also preferred that electro-mechanical kind in roll milling process.Protect
Hold the upstream that seat 34 is advantageously located at rolling grinding machine 30 (referring particularly to Fig. 6) so that rolling causes the axial tension in heart axle 32
Stress.The holding seat 36 advantageously comprises the second grip unit 340 on the second axial bearing unit 342.Keep seat
34 are specifically designed to clamping heart axle 32 and in roll milling process, give heart axle 32 predetermined speed.Actually in roll milling process, indulge
Drilling blank 12 is promoted in the axial direction to the roller of grinding machine 30 and thrust is transferred to heart axle 32 by this.Heart axle 32 is by the second clamping
Unit 340 clamp securely and therefore produce axial thrust be transferred to the second axial bearing unit 342.Second thrust bearing list
Unit 342 is designed to for the thrust to be transferred to ground successively.As core axle 32 is not kept, then which may connect along longitudinal grinding machine 30
Shifted with drilling blank 12 together.On the other hand, such as core axle is kept in a position-stable manner, then its work in-process can be in part
Interior remains stationary.On the other hand, in such device, heart axle 32 is kept seat 34 and brakes, and the holding seat 34 gives
The predetermined axial velocity of heart axle 32.Especially, the axial velocity for giving heart axle 32 is preferably greater than 0mm/s and is less than 4000mm/s.
Movement needed for keeping seat 34 to be also designed to give before and after 32 rolling of heart axle.These movements carry out in the axial direction and are intended to make
Heart axle 32 is moved to operating position from resting position and the extraction heart axle 32 from the semifinished tube 13 discharged by longitudinal grinding machine 30.
Some embodiments of device of the invention 10, the first grip unit 260 for bar 24 and are used for heart axle
32 the second grip unit 340 can be advantageously mounted inside on single axial bearing unit 362.According to the program, it is possible to obtain
Combine and instead of the thrust/holding seat 36 of two known type seats.By the program (if present), can be along position
Simplified partial roll milling apparatus 10 between circular bit 20 and longitudinal grinding machine 30.Especially, the cooperative effect of acquisition is derived from
Thrust block seat 26 and holding seat 34 are necessarily designed to exert a force in the axial direction and shift.Therefore in thrust/holding seat 36, can
The bar 24 (i.e. so as to which movement simultaneously bears its thrust) and the heart axle of longitudinal grinding machine 30 of circular bit 20 are controlled by individual system
32 (i.e. so as to which movement is simultaneously kept).As being described above with respect to thrust block seat 26 and holding seat 34 respectively, thrust/holding
Seat 36 is advantageously electro-mechanical kind.Actually by the program, it can be ensured that the optimal rigidity of seat and high mobile accuracy.Lift
For example, the system for alloing axial bearing unit movement includes can be mobile by little gear (which is engaged along tooth bar)
Bracket or the bracket that move along guide rail of cable or chain can be passed through.Further, since in device of the invention 10
Rolling axis XPRAnd XLLUnanimously, therefore by substituting thrust block seat 26 with single thrust/holding seat 36 and keeping seat 34, can obtain
Obtain the compactedness bigger in a longitudinal direction of device 10.Thrust/holding seat 26 is advantageously disposed on boring machine 20 and rolling grinding machine
Between 30 (referring particularly to Fig. 4, Fig. 5 and Fig. 7, Fig. 8).Due to the concrete scheme, therefore, it is possible to limit the entire length of instrument, nothing
By bar 24 and heart axle 32 it is separated from one another or combination form heart axle/bar assembly 324.Therefore, it is possible to carry out relatively simple instrument control
System, for example, laterally leave at the end of rolling so as to allowing to carry out cooling down on instrument, detecting and lubrication operation.
In addition, the favourable variant form of embodiment of the present invention is：Except single axial bearing unit 362 it
Outward, thrust/holding seat 36 also includes single grip unit 360.Single grip unit 360 is designed to supporting rod 24 and heart axle 32 simultaneously
Corresponding axial thrust is transferred to into single axial bearing unit 362.The variant form is due to cost, space and circulation time
Advantage and considerably improve the mechanical cooperative effect between part.Additionally, according to some embodiments, single grip unit 360
It is also designed so that bar 24 and thromboembolism 22 surround rolling axis XPRCarry out pre-rotation.
Particularly advantageously such embodiment：Single clamping of the heart axle/bar assembly 324 together with thrust/holding seat 36
Unit 360 is used together.The program is actually particularly compact and effective.
In addition, therefore, it is possible to using the suitable known system for being referred to as " triplet (terns) " (not shown)
With constrain heart axle/bar assembly 324 in boring procedure by compressive load part, so as to avoid flexing, i.e., due to
The unstability that axial load is caused.Meanwhile, triplet does not interfere being intended to for longitudinal rolling of heart axle/bar assembly 324
Valuable part 320, the surface of the part using lubricant (usually graphite treated lubricant) carried out anticipating so as to
For follow-up longitudinal direction rolling.As triplet is not contacted with the valuable part 320 of heart axle/bar assembly 324, therefore it is distributed in
Lubricant on valuable part 320 kept good condition before the moment that rolling is operated.This aspect cause it is to be obtained into
QC has better quality, on the other hand causes to keep the valuable part 320 of heart axle, thus increasing its working life.
As described in the operation with regard to device 10, during being drilled by circular bit 20, bar 24 is vertically
Rest on thrust/holding seat 36, the thrust/holding seat 36 is intended to for the axial thrust applied by roller to be transferred to billet 11 right
Axial thrust is transferred to the thromboembolism 22 of circular bit 20 afterwards from billet 11.At the end of drilling, the first grip unit is removed
260 and second grip unit 340 (or in some cases, single grip unit is 360) so that the drilling base being bonded on bar 24
Expect 12 axially displaced (if bar 24 is separated with heart axle 32) or make drilling blank 12 individually axially displaced (if bar 24 and heart axle 32
It is connected to each other).Once drilling blank 12 is bonded on heart axle 32, heart axle 32 is coupled to the second grip unit 340 or is connected to
Single grip unit 360.Keep seat 34 or thrust/holdings seat 36 (if present) be intended to the applying pull strength of centripetal axle 32 from
And in the roll milling process in longitudinal grinding machine 30, give heart axle 32 predetermined axial velocity.
According to above-mentioned comment, those skilled in the art will be understood the simple axial displacement of drilling blank 12 and how will
Which moves and its is decreased to minimum transfer time.More particularly, compared to known devices needed for the about 50-70 seconds, drill blank
Thus 12 be limited to only about 15 seconds from the transfer time of the entrance for being exported to longitudinal grinding machine 30 of circular bit 20.It is shorter at this
During period, the blank 12 that drills distributes the heat of much less to environment, therefore (depends on described under conditions of substantially hot
The shape of drilling blank 12 is generally at a temperature of between about 1210 DEG C and about 1240 DEG C) reach longitudinal grinding machine 30.
In addition, drilling blank 12 is directly displaced to heart axle 32 (or or even more simply along heart axle/bar assembly from bar 24
324 displacements) prevent its inner chamber from being filled by surrounding air and preventing from oxidation.In this way, it is to avoid carry out usual base
In the known anti-oxidant treatment of Borax.
As for circular bit 20, which can be the boring machine with barrel roll or the boring machine with tapered roller.This two
Kind of scheme is not described herein because they be well known to a person skilled in the art, both schemes have specific excellent
Point and positive feature, it is possible to select a kind of scheme rather than another kind of scheme according to specific needs.
Longitudinal grinding machine 30 can be being designed with slightly different form.Normally, the rolling grinding machine advantageously has
Roller (roller radially movable so as to adjust its position), therefore the power applied in roll milling process caused by drilling 12 shape of blank
Into semifinished tube 13.
According to some embodiments of device 10, the type of longitudinal grinding machine 30 is that each rolling station includes two rollers.It is this
Longitudinal grinding machine of type is particularly compact, reliability and low cost.For example according to such rolling grinding machine, due to each stand two
Individual roller is operated by identical motor, therefore using with the motor of the number at rolling station that includes in rolling grinding machine is
Enough.This obvious advantage in terms of bringing initial cost, operation consumption, complexity (lower) and global reliability.
According to other embodiments of device 10, the type of longitudinal grinding machine 30 is that each rolling station includes three rollers.It is this
Longitudinal grinding machine of type is especially accurate and is applied to production high-quality pipe.For example according to such rolling grinding machine, each
Three rollers stood are controlled so as to the exterior contour that deformation force is transferred to pipe in the way of special rule.This substantially brings most
Advantage in terms of the quality of finished product.
As for longitudinal grinding machine 30, both schemes are not described herein, because they are those skilled in the art
Known, both schemes have specific advantages and positive feature, can select a kind of scheme rather than another according to specific needs
The scheme of kind.
According to some embodiments, device of the invention 10 is also included for extracting heart axle 32 from semifinished tube 13 out
Striker fork 40.The striker fork is disposed immediately in the downstream of longitudinal grinding machine 30 and is designed to replace taking out pipe present in conventional equipment
Grinding machine.At the end of the rolling of semifinished tube 13, semifinished tube 13 leaves longitudinal grinding machine 30 and shorter part remains engaged in the heart
On axle 32.Actually longitudinal grinding machine gives pipe obvious axial velocity, and the heart axle 32 being included in longitudinal grinding machine is protected by upstream
Hold seat 34 to keep.This causes the 32 relative slip of pipe 13 and heart axle, so as to pipe 13 and heart axle 32 are almost taken out out completely.Once pipe from
Drive longitudinal grinding machine 30, striker fork 40 be maintained for it is in place, and can be via keeping seat 34 or thrust/holdings seat 36 by applying enough
Enough axial thrust forces and extract heart axle 32 backward out.
Just as readily understood by the skilled person, replaced for example with the simple and compact equipment of such as striker fork 40
Take out tube mill complexity and bulky machine bring compactedness, simplicity and global reliability in terms of obvious advantage.
After extracting out from semifinished tube 13, heart axle 32 must be subjected to a series of process and can just reuse.Process master
To include suitable cooling and be surface-treated using the lubricant for being typically based on graphite.Be intended to for these process it is special
Erect-position is in the side of roll milling apparatus 10.
In the downstream of striker fork 40, device of the invention 10 can also include stretch reducing grinding machine 50, wherein described
Small-sized induction furnace 60 can be advantageously provided before grinding machine.Stretch reducing grinding machine 50 is designed to receive semifinished tube in its porch
13 and at least dependent on its principal character (i.e. wall thickness and external diameter) discharge production tube 14.In the downstream of stretch reducing grinding machine 50,
If necessary, production tube 14 can undergo other secondary operations, such as detection operation and/or finishing operation.
If the temperature of semifinished tube 13 is reduced at the position of the upstream close to stretch reducing grinding machine 50 of device 10,
Close to the upstream of stretch reducing grinding machine 50, to there is induction furnace 60 can be favourable.With regard to above-mentioned comment, the temperature should be avoided
Reduce or hold it in negligible level, but the use of induction furnace 60 can be favourable in certain special cases
's.For example, in the case of high-alloy steel pipe, it can be advantageous to raise temperature in stretch reducing grinding machine 50 needed for rolling so as to
Reduce rolling stress.Additionally, in the case where pipe is with extremely thin wall (even if such pipe is during less movement
More coolings can be undergone), it can be favourable during the step to rise high-temperature.
Here should be noted that induction furnace 60 constitutes particularly compact and simple scheme so as to tackle the temperature for raising semifinished tube 13
The needs of degree.The stove is of virtually especially little size, because which passes through shorter passage simply forming, semifinished tube 13 exists
It is axially displaced in the passage.Faradic current is produced in the metallic object of pipe for special circuit and these electric currents determine which
Heat.
According to other embodiments of device 10, stretch reducing grinding machine 50 can be replaced by grinding machine of shaping.Can be based on
Particular requirement (size of such as production tube) selects a kind of scheme rather than another kind of scheme, without negatively affecting the present invention's
Advantage.
Roll milling apparatus of the invention 10 also escape path including a series of, and which is in case of emergency (i.e. when rolling mistake
When breaking down in journey) it is proved to be particularly advantageous.
First escapes side of the path 71 positioned at the path supplied billet 11 to circular bit 20.Along rolling line
In the case that any kind of problem occurs in road, this is escaped path 71 and can be used for abandoning the billet 11 for preparing rolling.In the feelings
Under condition, it is actually unable in billet being supplied to boring machine 20, because downstream unit can not receive which before current problem is solved
Its part.
In the case of going wrong in boring procedure, in fact it could happen that situation be from bolt by the anterior displacement of thromboembolism 22
Plug 22 extracts billet 11 out.Therefore in such a case it is possible to extract only local out from the bar 24 and thromboembolism 22 in 20 downstream of circular bit
The billet 11 of drilling.In order to extract thromboembolism 22 from the billet 11 of localized borehole out, it can be advantageous to using the first emergent fork, described
Fork is designed to for billet 11 to keep in situ, while extracting forward bar 24 and thromboembolism 22 out.By thrust block seat 26 or thrust/holding seat 36
(if present) carry out the extraction forward of thromboembolism 22 and bar 24.
Then the billet 11 of only localized borehole for example can laterally or be vertically removed by crane, while can lead to
Cross the normal system of laterally leaving used after rolling and remove bar 24 and thromboembolism 22.
Similarly, when thromboembolism 22 keeps being stuck in billet 11, it is also possible to supplied forward in the downstream of boring machine 20 together
Two parts and by its lateral discharge.Particularly when when bar 24 and heart axle 32 structurally link together, it is a kind of possible
Laterally to leave be that heart axle 32 normally leaves path.Alternatively possible path of escaping is vertical and by crane
(crane can lift the component being made up of the bar 24 of billet 11 and insertion billet 11) is realized, therefore from rolling circuit
Remove the component.Other operations removed from billet 11 needed for thromboembolism 22 now can be suitably offline in known manner
Carry out.
Second escapes path 72 and the 3rd escapes the outlet for semifinished tube 13 that path 73 is arranged on longitudinal grinding machine 30
Near.In the case of going wrong in longitudinal roll milling process, in fact it could happen that situation be by 32 rearward displacement of heart axle and from
Heart axle 32 extracts drilling blank 12 out.Therefore in this case, the drilling blank 12 of only local rolling can be in longitudinal grinding machine 30
Downstream moves forward and second is laterally discharged into from this escapes path 72.
In order to extract heart axle 32 from the drilling blank 12 of local rolling out, it is advantageously able to according to circumstances use striker fork 40
Or the second emergent fork 42 (its be disposed immediately in the upstream of longitudinal grinding machine 30 and be designed to will drilling blank 12 keep in situ), while
Extract heart axle 32 backward out.The extraction backward of heart axle 32 is carried out by thrust/holding seat 36.
On the other hand, when taking care axle 32 and keeping being stuck in drilling blank 12, it is necessary in the downstream of longitudinal grinding machine 30 along the
Three escape path 73 supplies two parts further along, and the described 3rd escapes path 73 essentially forms going out for longitudinal grinding machine 30
The extension line of mouth.In this case, the roll at the station of longitudinal grinding machine 30 is by the adjustment equipment that normally uses in roll milling process
And be located in the outside of cumulative volume, so that the heart axle 32 of drilling blank 12 and insertion drilling blank 12 is passed through.
Other operations removed from drilling blank 12 needed for heart axle 32 now can be suitably offline in known manner
Carry out.
According on the other hand, the invention further relates to the method for being used for rolling seamless pipe.The method according to the invention include as
Lower step：
- solid billet 11 is provided；
- circular bit 20 is provided, the circular bit 20 includes two inclined shaft rolls and the bolt on bar 24
Plug 22, circular bit 20 limit rolling axis XPR；
- longitudinal grinding machine 30 is provided, longitudinal grinding machine 30 includes multiple rolling stations with adjustable roller, longitudinal grinding machine 30
Limit rolling axis XLLAnd it is designed to the rolling drilling blank 12 on heart axle 32；
- solid billet 11 is supplied to circular bit 20；
- billet 11 is drilled so as to obtain drilling blank 12 towards thromboembolism 22；
- axial thrust produced on bar 24 is resisted during the drill process of billet (11)；
- release is bonded on the drilling blank 12 on the bar 24 of thromboembolism 22；
- make drilling blank 12 that the heart axle 32 of longitudinal grinding machine 30 is displaced to from the bar 24 of thromboembolism 22；
- drilling the blank 12 that will be engaged on heart axle 32 is supplied to longitudinal grinding machine 30；
- on heart axle 32, rolling drills blank 12 so as to obtain semifinished tube 13；
- during the rolling steps of drilling blank (12), give heart axle 32 predetermined speed；
- release semifinished tube 13.
In addition, the method according to the invention, rolling axis XPRAnd XLLUnanimously.
Just as clear to the skilled person, roll milling apparatus of the invention and method at least partially overcome ginseng
Examine the shortcoming of description of the prior art.
Especially, those skilled in the art are clearly understood that as the blank 12 that drills is in the outlet of circular bit 20 and vertical
The advantage for moving and bringing for greatly reducing between the entrance of grinding machine 30.Therefore occur in the porch of longitudinal grinding machine 30
Substantially temperature difference is being mentioned above, and the temperature is with the value in the range of 1210 DEG C -1240 DEG C rather than 1050 DEG C -1150 DEG C.
The effect of the temperature can be understood when those skilled in the art consider following true according to the test for being carried out completely：Application
People has determined the nominal of each station that device of the invention 10 can be used in the case of all other condition identical
The device of rolling power ratio known type is low or even 35%.
Similarly, due to device of the invention 10, the power consumption in course of normal operation can be reduced.As drop
One alternative form of low power consumption, can roll the tool that can not be processed using other devices using device of the invention
There is the steel of more highly adhesive content.
Other effects that the transfer time of drilling blank 12 is reduced are related to the control of heart axle 32.First, drill blank 12
Higher temperature cause the stress on 32 outer surface of heart axle less so that abrasion is less.Additionally, drilling blank 12 is more
Little transfer time causes total cycle time shorter, this make it possible to reduce in order to ensure operation in apparatus 10 must while
The quantity of the heart axle 32 of presence.The heart number of axle in the case of conventional equipment equal to about 6 or 7, in dress of the invention
Reduce in putting to 3.Have clearly a need for considering that the valuable part 320 of the single heart axle 32 used in device of the invention 10 is about
The half of conventional mandrel 32.
All these aspects mentioned above bring the obvious saving related to the overall control of heart axle 32.With regard to heart axle,
As the less gross area on the surface of pending surface treatment (such as treats the valuable part 320 of the heart axle by chromium plating process
Less area) be multiplied by the less total quantity of heart axle 32, therefore obtain less environmental effect.
As described above, the feature of the present invention is obtained in that particularly compact roll milling apparatus 10.Thus, for example produce field
Main building can have much smaller size.(show in Fig. 3 and Fig. 4) as technical area, dress of the invention
The width ratio conventional equipment put is little by 30%, and length is little by 60%.As those skilled in the art can understand completely, the sky
Between reduce and cause a large amount of to save initial outlays and control cost.For example, for about 30 meters present in device of the invention
Span, it is possible to use prefabricated crossbeam construction and bridge crane, therefore compared to needed for such as 45 meters or more large span
Especially enhanced bridge crane causes to realize a large amount of saving.
In view of the overall dimensions of circuit (showing in Fig. 1 and Fig. 2), the area occupied by device of the invention is compared
50% is reduced in conventional equipment.
Another particularly advantageous aspect is that the deoxidation that can be completely eliminated based on Borax is processed.In this way, no
Only avoid to the offer for the treatment of stations and using related cost, and without using toxicant, therefore reduce environment shadow
Ring.More rapidly shifting for drilling blank 12 is have also obtained, it is extremely thin in drilling blank 12 and be thus subject to rapider cooling
In the case of, for hot related causes, this is particularly advantageous.
In order to meet particular requirement, those skilled in the art can be to the device for rolling seamless pipe of the invention
Modify with the embodiment of method and/or described part is substituted with equivalent unit, without departing from claims
The scope of book.
Claims (14)
1. the compact apparatus (10) of rolling seamless pipe are used for, including：
Circular bit (20), which includes two inclined shaft rolls and the thromboembolism (22) being arranged on bar (24), circular bit limit
Fixed roll rolls axis XPRAnd be designed to：
Solid billet (11) is received in its porch,
Billet (11) is drilled towards thromboembolism (22),
Release is bonded on the drilling blank (12) on the bar (24) of thromboembolism (22)；
Wherein, the bar (24) of the thromboembolism (22) of circular bit (20) is connected to thrust block seat (26), thrust block seat (26) design
The axial thrust produced on bar (24) in opposing boring procedure；
Longitudinal grinding machine (30), which includes multiple with the rolling station for being capable of regulating roller, longitudinal grinding machine restriction rolling axis XLLAnd set
Count into：
The drilling blank (12) discharged by circular bit is received in its porch；
Rolling drilling blank (12) on heart axle (32),
Release semifinished tube (13)；
Wherein, the heart axle (32) of longitudinal grinding machine (30) is connected to holding seat (34), and holding seat (34) is designed in rolling mistake
Heart axle (32) predetermined speed is given in journey；Wherein, rolling axis XPRAnd XLLUnanimously.
2. device (10) according to claim 1, wherein：
Thrust block seat (26) is designed to give required movement before and after bar (24) and thromboembolism (22) drilling；
Keep seat (34) be designed to give heart axle (32) rolling before and after needed for movement.
3. device (10) according to claim 1 and 2, wherein, thrust block seat (26) is positioned at the downstream of boring machine (20), and protects
Hold upstream of the seat (34) positioned at longitudinal grinding machine (30).
4. device (10) according to any one of aforementioned claim, wherein, the thrust block seat (26) is included installed in
The first grip unit (260) on one axial bearing unit (262)；Holding seat (34) is included installed in the second thrust bearing
The second grip unit (340) on unit (342).
5. device (10) according to claim 4, wherein, first grip unit (260) of the thrust block seat (26) and protect
Second grip unit (340) of seat (36) is held on single axial bearing unit (362).
6. device (10) according to claim 5, wherein, first grip unit (260) of thrust/holding seat (36) and
Two grip units (340) form single grip unit (360).
7. device (10) according to any one of aforementioned claim, wherein, the thromboembolism (22) of circular bit (20)
Bar (24) is structurally connected to the heart axle (32) of longitudinal grinding machine (30).
8. device (10) according to claim 7, wherein, the bar (24) of the thromboembolism (22) of circular bit (20) and longitudinal direction
The heart axle (32) of grinding machine (30) is integrally formed.
9. device (10) according to claim 7, wherein, the bar (24) of the thromboembolism (22) of circular bit (20) and longitudinal direction
The heart axle (32) of grinding machine (30) can link together in which discharge.
10. device (10) according to any one of aforementioned claim, wherein, circular bit (20) is selected from tubular
The boring machine of roller and the boring machine with tapered roller.
11. devices (10) according to any one of aforementioned claim, wherein, longitudinal grinding machine (30) is selected from double roller roller
Roll the rolling grinding machine and the rolling grinding machine with three roller rolling stations at station.
12. devices (10) according to any one of aforementioned claim, further include for from semifinished tube (13)
Extract the striker fork (40) of heart axle (32) out.
13. devices (10) according to any one of aforementioned claim, wherein, assigned by holding seat (34) in roll milling process
The predetermined speed of heart axle (32) is given between 0mm/s and 4000mm/s.
14. methods for being used for rolling seamless pipe, comprise the steps：
Solid billet (11) is provided；
Circular bit (20) is provided, the circular bit (20) includes two inclined shaft rolls and the bolt being arranged on bar (24)
Plug (22), circular bit limit rolling axis XPR；
Longitudinal grinding machine (30) is provided, longitudinal grinding machine (30) is including multiple with the rolling station for being capable of regulating roller, longitudinal grinding machine
(30) rolling axis X are limitedLLAnd it is designed to rolling drilling blank (12) on heart axle (32)；
Solid billet (11) is supplied to circular bit (20)；
Billet (11) is drilled so as to obtain drilling blank (12) towards thromboembolism (22), and
The axial thrust produced on bar (24) is resisted during the drill process of billet (11)；
Release is bonded on the drilling blank (12) on the bar (24) of thromboembolism (22)；
Make drilling blank (12) that the heart axle (32) of longitudinal grinding machine (30) is displaced to from the bar (24) of thromboembolism (22)；
Will be engaged into the drilling blank (12) on heart axle (32) to supply to longitudinal grinding machine (30)；
On heart axle (32), rolling drills blank (12) so as to obtain semifinished tube (13)；
Heart axle (32) predetermined speed is given during the rolling steps of drilling blank (12)；And
Release semifinished tube (13),
Wherein, rolling axis XPRAnd XLLUnanimously.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI2014A001399 | 2014-07-31 | ||
| ITMI20141399 | 2014-07-31 | ||
| PCT/IB2015/055193 WO2016016751A1 (en) | 2014-07-31 | 2015-07-09 | Compact plant for rolling seamless tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106660087A true CN106660087A (en) | 2017-05-10 |
Family
ID=51628374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580041870.6A Pending CN106660087A (en) | 2014-07-31 | 2015-07-09 | Compact plant for rolling seamless tubes |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20170165729A1 (en) |
| EP (1) | EP3174649A1 (en) |
| JP (1) | JP2017522191A (en) |
| CN (1) | CN106660087A (en) |
| AR (1) | AR101373A1 (en) |
| RU (1) | RU2017106031A (en) |
| WO (1) | WO2016016751A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017105582A1 (en) * | 2016-04-01 | 2017-10-05 | Sms Group Gmbh | Method and plant for producing a seamless hot-rolled tube and rolled centrifugally cast tube and the use of a hollow block produced by centrifugal casting |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US401145A (en) * | 1889-04-09 | John ii | ||
| DE1427915A1 (en) * | 1962-11-29 | 1969-08-14 | Kocks Gmbh Friedrich | Method and device for manufacturing seamless tubes |
| GB1449662A (en) * | 1972-09-08 | 1976-09-15 | Vallourec | Process and an installation for the production of seamless metal tubes |
| JPS5466365A (en) * | 1977-11-08 | 1979-05-28 | Nippon Steel Corp | Piercing method for pipe material |
| JPS5947005A (en) * | 1982-08-18 | 1984-03-16 | Mitsubishi Heavy Ind Ltd | Inserting device of continuous rolling mill for pipe which operates mandrel under controlling its speed |
| WO2010025790A1 (en) * | 2008-08-25 | 2010-03-11 | Sms Meer Gmbh | Method for producing a seamless steel pipe and rolling mill for performing the method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5011770B2 (en) * | 2006-03-22 | 2012-08-29 | 住友金属工業株式会社 | Method for producing martensitic stainless steel pipe |
| DE102013002268B4 (en) * | 2013-02-12 | 2018-04-05 | Sms Group Gmbh | Rolling plant or process |
-
2015
- 2015-07-09 EP EP15747555.9A patent/EP3174649A1/en not_active Withdrawn
- 2015-07-09 CN CN201580041870.6A patent/CN106660087A/en active Pending
- 2015-07-09 WO PCT/IB2015/055193 patent/WO2016016751A1/en active Application Filing
- 2015-07-09 JP JP2017505534A patent/JP2017522191A/en active Pending
- 2015-07-09 RU RU2017106031A patent/RU2017106031A/en not_active Application Discontinuation
- 2015-07-09 US US15/403,420 patent/US20170165729A1/en not_active Abandoned
- 2015-07-29 AR ARP150102433A patent/AR101373A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US401145A (en) * | 1889-04-09 | John ii | ||
| DE1427915A1 (en) * | 1962-11-29 | 1969-08-14 | Kocks Gmbh Friedrich | Method and device for manufacturing seamless tubes |
| GB1449662A (en) * | 1972-09-08 | 1976-09-15 | Vallourec | Process and an installation for the production of seamless metal tubes |
| JPS5466365A (en) * | 1977-11-08 | 1979-05-28 | Nippon Steel Corp | Piercing method for pipe material |
| JPS5947005A (en) * | 1982-08-18 | 1984-03-16 | Mitsubishi Heavy Ind Ltd | Inserting device of continuous rolling mill for pipe which operates mandrel under controlling its speed |
| WO2010025790A1 (en) * | 2008-08-25 | 2010-03-11 | Sms Meer Gmbh | Method for producing a seamless steel pipe and rolling mill for performing the method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016016751A1 (en) | 2016-02-04 |
| JP2017522191A (en) | 2017-08-10 |
| RU2017106031A3 (en) | 2018-12-10 |
| AR101373A1 (en) | 2016-12-14 |
| RU2017106031A (en) | 2018-08-28 |
| US20170165729A1 (en) | 2017-06-15 |
| EP3174649A1 (en) | 2017-06-07 |
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