CN103061333A - Split screw pile and welding method thereof - Google Patents
Split screw pile and welding method thereof Download PDFInfo
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- CN103061333A CN103061333A CN2013100050754A CN201310005075A CN103061333A CN 103061333 A CN103061333 A CN 103061333A CN 2013100050754 A CN2013100050754 A CN 2013100050754A CN 201310005075 A CN201310005075 A CN 201310005075A CN 103061333 A CN103061333 A CN 103061333A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/56—Screw piles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
- B23K33/006—Filling of continuous seams for cylindrical workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
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Abstract
The invention discloses a split screw pile and a welding method thereof. The split screw pile comprises a pile body and a submerging tip, which are split. The submerging tip comprises a sharp end and a truncated-cone-shaped tail. An insert part of the submerging tip is inserted into a socket hole of the pile body so that a circular welding groove is formed between a slant part of the submerging tip and an open end of the pile body. The pile body is welded to the circular welding groove of the submerging tip to form an integrated structure. The welding method of the split screw pile includes the steps of firstly, performing connector butt welding; secondly, cleaning before welding; thirdly, preheating; fourthly, welding, namely performing manual gas tungsten arc welding to complete bottoming by nickel-base welding wires ERNiCrMo-3, and performing manual arc welding to complete filling and capping; and fifthly, thermally treating after welding. Therefore, the effective welding between the Q235B pile body and the 12Cr1MoV submerging tip is achieved, butt joint of connectors is simple and reliable, operating efficiency is improved, effective welding area is increased, weld strength is increased and processing and production costs are lowered.
Description
Technical field
The present invention relates to a kind of spiral ground pile, be specifically related to a kind of split type spiral ground pile and welding method thereof.
Background technology
In engineering construction, the range of application of pile is larger, and it is widely used in the middle of the Building class industries such as photovoltaic, wind energy.Pile be the building with the steel frame construction industry, generally adopt for being connected the connection agent structure on ground.Existing spiral ground pile all adopts integral structure, and pile body is tubular structure, and the pile body periphery is connected with helical blade, and the pile body front end is sharp structure.Whole spiral ground pile can only be applicable to the soil of single characteristic, while running into other characteristic soil, this type of spiral ground pile has just lost use value, limited on the one hand the scope of application of pile, on the other hand when adopting the existing spiral ground pile frozen soil geology very high to hardness to be constructed, need the whole superhard material that adopts of spiral ground pile, have the high problem with wasting resource of cost.As Chinese Patent Application No. " 201110194483.X " discloses a kind of prefabricated rotary drilling compound pile and job practices thereof, comprise pile body and pile top, described pile top is taper, on described pile body external surface, be provided with and the acutangulate blade of its horizontal slice, described blade is at least a slice, described blade is helical form, flaabellum shape or colter shape, it axially distributes along it continuously or intermittently at the pile body external surface, spaced spiral plate on described pile body external surface, described spiral plate is arranged in pile body external surface 360 degree scopes continuously or intermittently, pile body connects and is connected with pile top by flange or weld seam.But this spiral ground pile adopts conventional welding method, when very high frozen soil geology is constructed to hardness, need the whole superhard material (as 12Cr1MoV) that adopts, there is the problem of cost height and waste resource.
In order to address the above problem, the pile top that the pile body that it is the Q235 carbon steel that the inventor proposes material first and material are the 12Cr1MoV steel is welded, to reach the purpose reduced costs.But, because the groove type of conventional welding point is generally V-type or U-shaped groove, need to all carry out groove processing to pile body and pile top, existence processing and docking bother, efficient weld area is little, weld strength is poor and the inefficient shortcoming of welding job.Simultaneously, the 12Cr1MoV steel belongs to pearlite heatproof steel, due to phosphorus content and alloying element more, hardened structure easily appears in weld seam and heat affected zone, makes plasticity, toughness drop, the weldability variation, easily cracks when larger when weldment rigidity and joint stress.Because the chemical component difference of 12Cr1MoV steel and Q235B carbon steel is very large, therefore their welding belongs to the dissimilar steel welding, to under the condition of melting welding, obtain reliable welding point, there are many problems: 1, due to both thermal conductivities and the difference of specific heat capacity, make both fusings asynchronous, molten bath formation and metal, in conjunction with bad, cause the weld seam crystallization condition to degenerate, Weld Performance and cob webbing.2, both linear expansion coeffcient differences, cause in their cooling procedures after formation is welded to connect, and the amount of contraction difference of weld seam both sides, cause welding point complicated high-stress state to occur, and then accelerate the generation of crackle.3, there is the problem of welding dilution and formation transition zone.
In summary it can be seen, adopt the structure of traditional welding point and welding procedure these two kinds of dissimilar steel to be welded to effective welding that can not realize between these two kinds of dissimilar steel, therefore need the structure of Welded Joints and welding procedure to be improved.
Summary of the invention
For the deficiencies in the prior art, first purpose of the present invention is for a kind of split type spiral ground pile is provided, this spiral ground pile bores the ground tip by Q235B carbon steel pile body and 12Cr1MoV heat resisting steel and is welded into overall structure, docking during welding between joint is simple and reliable, increase work efficiency, increase efficient weld area, improve the weld strength after welding, the effective welding between these two kinds of dissimilar steel be can realize, processing and cost of production reduced.
Second purpose of the present invention is that this welding method can prevent the generation of commissure crackle for a kind of welding method of split type spiral ground pile is provided; Reduced the diffusion of carbon; Alleviated intercrystalline corrosion, realized that Q235B carbon steel pile body and 12Cr1MoV heat resisting steel bore the effective welding between the ground tip.
For realizing above-mentioned first purpose, the present invention adopts following technical scheme:
A kind of split type spiral ground pile, comprise tubulose pile body and the conical ground tip that bores that split arranges, and described pile body outer race is provided with the helical blade that is the spiral shape body; It is characterized in that: described brill ground tip comprises point and truncated cone-shaped afterbody; Described truncated cone-shaped afterbody comprises the inclined plane part that the Plug Division that coordinates with the pile body internal face and diameter are greater than described Plug Division; Described Plug Division of boring the ground tip is interspersed in the sleeve joint hole of pile body, forms the annular solder groove between the open end of the inclined plane part of tip and pile body with making brill, and the axial cross section of described annular solder groove is right-angled triangle or right-angled trapezium; Described pile body is welded into overall structure with brill ground tip at annular solder groove place.
Described pile body is for adopting the pile body of Q235B carbon steel material, the chemical composition of Q235B carbon steel (%): C:0.12～0.20, Si :≤0.30, Mn:0.30～0.70, S :≤0.045, P :≤0.045, Cr: allow residual content≤0.030, Ni: allow residual content≤0.030, Cu: allow residual content≤0.030.
The described ground tip that bores is for adopting the brill ground tip of 12Cr1MoV weathering steel material, the chemical composition of 12Cr1MoV weathering steel (%): C:0.07～0.15, Si:0.18～0.37, Mn:0.41～0.70, Cr:0.90～1.20, Mo:0.25～0.35, V:0.15～0.30.
Realize that one embodiment of the present invention are: the section area of described annular solder groove is more than or equal to 8mm2.
Realize that one embodiment of the present invention are: described pile body end be provided with for fixing flange arrangement or the tight fixed bolt structure of outer body structure.
Realize that one embodiment of the present invention are: described pile body rearward end is provided with the arc stiffener and runs through the through hole of stiffener and pile body.
Realize that one embodiment of the present invention are: described point comprises the cut formula pointed cone of front end and the cutting edge of both sides.
Realize that one embodiment of the present invention are: also be provided with the circular row water hole on described point.
Realize that one embodiment of the present invention are: described helical blade is endless spiral or segmentation helical blade.
For realizing above-mentioned second purpose, the present invention adopts following technical scheme:
A kind of welding method of split type spiral ground pile is characterized in that carrying out according to the following steps:
1) joint docking: the Plug Division that will bore the ground tip is interspersed in the sleeve joint hole of pile body, forms the annular solder groove between the open end of the inclined plane part of tip and pile body with making brill, and the axial cross section of described annular solder groove is right-angled triangle or right-angled trapezium; Wherein, described pile body is for adopting the pile body of Q235B carbon steel material, and described brill ground tip is for adopting the brill ground tip of 12Cr1MoV weathering steel material;
2) preweld cleaning: pile body is removed with greasy dirt and the filth on the surface of boring ground tip butt welding part;
3) preheating: by pile body with bore the ground tip welding position is preheated to 150～180 ℃; Preheating is the important measures of pearlite heatproof steel welding, and can the slow down cooling velocity of weld seam and heat affected zone of preheating, be conducive to avoid producing hardened structure, contributes to the effusion of the hydrogen of weld zone, prevents weld crack.Because the content of the carbon content of 12Cr1MoV steel and alloying element is higher, so select 150～180 ℃ of preheat temperatures;
4) welding: pile body is welded in horizontally rotating position with boring the ground tip, select nickel-based welding wire ERNiCrMo-3, adopt GTAW (TIG) bottoming, manual electric arc welding (SMAW) is filled, capping; Interlayer temperature is controlled at 180～200 ℃; In whole welding process, should keep interlayer temperature to be not less than preheat temperature;
4-1) GTAW (TIG) bottoming: the He that adopts the quality percentage composition to be respectively 80% Ar and 20% is as protection gas, and controlling gas flow is 8 L/Min; Electric power polarity is: straight polarity direct current, and electric current is 100A, voltage is 12V;
4-2) manual electric arc welding is filled: electric power polarity is: straight polarity direct current, and electric current is 120A, voltage is 15V;
4-3) manual electric arc welding capping: electric power polarity is: straight polarity direct current, and electric current is 120A, voltage is 15V;
5) postweld head treatment: after welding finishes, adopt immediately the heat insulating material butt welded seam and carry out covering and heat insulating near weld metal zone, make the joint Slow cooling.Subsequently, then weldment integral body is heated to 760 ℃, constant temperature, after 30 minutes, is cooled to room temperature.The postwelding heat treatment that eliminated stress, can eliminate or reduce the hardened structure that influence area occurs, increases plasticity and toughness, effectively reduces welding residual stress, is conducive to the effusion of diffusible hydrogen simultaneously, thereby reduce the cold crack tendency.
Beneficial effect of the present invention is:
1, the structure of Welded Joints of the present invention is improved, and will bore the ground tip and be provided with the truncated cone-shaped afterbody; The Plug Division of boring the ground tip is interspersed in the sleeve joint hole of pile body, can be so that form the annular solder groove between the open end of the inclined plane part of brill ground tip and pile body, the docking between joint is simple and reliable, increases work efficiency; Because the axial cross section of described annular solder groove is right-angled triangle or right-angled trapezium, with traditional groove type, compare, can increase efficient weld area, improve the weld strength after welding, can realize the effective welding between these two kinds of dissimilar steel.Simultaneously, the present invention only need to carry out groove processing to boring the ground pointed portion, thereby reduces processing and cost of production.
2, the present invention improves welding procedure, at first, the present invention is preheated to 150～180 ℃ by pile body and brill ground tip to welding position, the cooling velocity of weld seam and heat affected zone can slow down, be conducive to avoid producing hardened structure, contribute to the effusion of the hydrogen of weld zone, prevent weld crack.Secondly, the present invention selects nickel-based welding wire ERNiCrMo-3, adopt GTAW (TIG) bottoming, manual electric arc welding (SMAW) is filled, capping, adopts argon-helium gas mixture body GTAW backing welding, and production joint is used 80%Ar+20%He, utilize Ar pneumoelectric arc to stablize soft, He pneumoelectric arc calorific value is concentrated greatly, increases the characteristics of fusion penetration, eliminates the generation of the lack of inter-run fusion defect in this dissimilar steel production joint welding.Last the present invention has carried out postweld head treatment, can eliminate or reduce the hardened structure that influence area occurs, increases plasticity and toughness, effectively reduces welding residual stress, is conducive to the effusion of diffusible hydrogen simultaneously, thereby reduces the cold crack tendency.
In sum, the present invention is improved by structure and the welding procedure of Welded Joints, can prevent the generation of commissure crackle; Reduced the diffusion of carbon; Alleviated intercrystalline corrosion, realized that Q235B carbon steel pile body and 12Cr1MoV heat resisting steel bore the effective welding between the ground tip, the breaking strength of joint is up to 735 MPa, and the mechanical property in welding line joint zone is better than mother metal; Metallographic structure is observed and is shown, the joint microstructure densification, and crystal grain is tiny; The joint fracture SEM is observed and to be shown, the fracture zone dimple is large and dark, is the ductile rupture feature, in joint there are no being mingled with, the defects such as pore and micro-crack.Simultaneously, docking when the present invention also has welding between joint is simple and reliable, has improved operating efficiency, has increased efficient weld area, has improved the weld strength after the welding, has reduced the advantage of processing and cost of production.
The accompanying drawing explanation
The structural representation that Fig. 1 is a kind of split type spiral ground pile of the present invention.
Structural representation when Fig. 2 is pile body of the present invention and brill ground tip employing welding connecting mode.
The partial enlarged drawing that Fig. 3 is weld A in Fig. 2.
The specific embodiment
Specific embodiment:
Below, by reference to the accompanying drawings and the specific embodiment, the present invention is described further:
With reference to Fig. 1-Fig. 3, the described split type spiral ground pile of the present embodiment, comprise tubulose pile body 2 and the conical ground tip 1 that bores that split arranges, and the external surface of the body 201 of described pile body 2 is arranged with the helical blade 202 that is the spiral shape body; Described brill ground tip 1 comprises point 102 and truncated cone-shaped afterbody 101; Described truncated cone-shaped afterbody 101 comprises the inclined plane part 101b that the Plug Division 101a that coordinates with pile body 2 internal faces and diameter are greater than described Plug Division; The described Plug Division 101a that bores the ground tip is interspersed in the sleeve joint hole of pile body 2, form annular solder groove 3 between the open end 203 of the inclined plane part 101b of tip 1 and pile body 2, the axial cross section of described annular solder groove 3 is right-angled triangle or right-angled trapezium with making brill; Described pile body is welded into overall structure with brill ground tip at annular solder groove place.
In the present embodiment:
Described pile body 2 is for adopting the pile body of Q235B carbon steel material, the chemical composition of Q235B carbon steel (%): C:0.12～0.20, Si :≤0.30, Mn:0.30～0.70, S :≤0.045, P :≤0.045, Cr: allow residual content≤0.030, Ni: allow residual content≤0.030, Cu: allow residual content≤0.030.
The described ground tip 1 that bores is for adopting the brill ground tip of 12Cr1MoV weathering steel material, the chemical composition of 12Cr1MoV weathering steel (%): C:0.07～0.15, Si:0.18～0.37, Mn:0.41～0.70, Cr:0.90～1.20, Mo:0.25～0.35, V:0.15～0.30.
The section area of described annular solder groove 3 is more than or equal to 8mm2.Described pile body 2 ends be provided with for fixing flange arrangement or the tight fixed bolt structure 204 of outer body structure.Described pile body rearward end is provided with the arc stiffener and runs through the through hole of stiffener and pile body.Described point comprises the cut formula pointed cone of front end and the cutting edge of both sides.Also be provided with circular row water hole 102a on described point 102.Described helical blade is endless spiral or segmentation helical blade.
A kind of welding method of split type spiral ground pile, carry out according to the following steps:
1) joint docking: the Plug Division that will bore the ground tip is interspersed in the sleeve joint hole of pile body, forms the annular solder groove between the open end of the inclined plane part of tip and pile body with making brill, and the axial cross section of described annular solder groove is right-angled triangle or right-angled trapezium; Wherein, described pile body is for adopting the pile body of Q235B carbon steel material, and described brill ground tip is for adopting the brill ground tip of 12Cr1MoV weathering steel material;
2) preweld cleaning: pile body is removed with greasy dirt and the filth on the surface of boring ground tip butt welding part;
3) preheating: by pile body with bore the ground tip welding position is preheated to 150～180 ℃; Preheating is the important measures of pearlite heatproof steel welding, and can the slow down cooling velocity of weld seam and heat affected zone of preheating, be conducive to avoid producing hardened structure, contributes to the effusion of the hydrogen of weld zone, prevents weld crack.Because the content of the carbon content of 12Cr1MoV steel and alloying element is higher, so select 150～180 ℃ of preheat temperatures;
4) welding: pile body is welded in horizontally rotating position with boring the ground tip, select nickel-based welding wire ERNiCrMo-3, adopt GTAW (TIG) bottoming, manual electric arc welding (SMAW) is filled, capping; Interlayer temperature is controlled at 180～200 ℃; In whole welding process, should keep interlayer temperature to be not less than preheat temperature;
4-1) GTAW (TIG) bottoming: the He that adopts the quality percentage composition to be respectively 80% Ar and 20% is as protection gas, and controlling gas flow is 8 L/Min; Electric power polarity is: straight polarity direct current, and electric current is 100A, voltage is 12V;
4-2) manual electric arc welding is filled: electric power polarity is: straight polarity direct current, and electric current is 120A, voltage is 15V;
4-3) manual electric arc welding capping: electric power polarity is: straight polarity direct current, and electric current is 120A, voltage is 15V;
5) postweld head treatment: after welding finishes, adopt immediately the heat insulating material butt welded seam and carry out covering and heat insulating near weld metal zone, make the joint Slow cooling. subsequently, then weldment integral body is heated to 760 ℃, constant temperature, after 30 minutes, is cooled to room temperature.The postwelding heat treatment that eliminated stress, can eliminate or reduce the hardened structure that influence area occurs, increases plasticity and toughness, effectively reduces welding residual stress, is conducive to the effusion of diffusible hydrogen simultaneously, thereby reduce the cold crack tendency.
Carry out the test specimen welding according to said welding method, test specimen is after visual inspection, magnetic powder inspection and x-ray inspection are qualified, and on test specimen, intercepting mechanical property sample, metal lographic examination sample are tested.Assay is in Table 1 and table 2.
Table 1 joint mechanical property
Table 2 metallographic structure
Result shows, the tension failure zone occurs in the mother metal side, and the breaking strength of joint is up to 735 MPa, and the mechanical property in welding line joint zone is better than mother metal; Metallographic structure is observed and is shown, the joint microstructure densification, and crystal grain is tiny; The joint fracture SEM is observed and to be shown, the fracture zone dimple is large and dark, is the ductile rupture feature, in joint there are no being mingled with, the defects such as pore and micro-crack.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and the distortion all should belong to the protection domain of the claims in the present invention within.
Claims (10)
1. a split type spiral ground pile, comprise tubulose pile body and the conical ground tip that bores that split arranges, and described pile body outer race is provided with the helical blade that is the spiral shape body; It is characterized in that: described brill ground tip comprises point and truncated cone-shaped afterbody; Described truncated cone-shaped afterbody comprises the inclined plane part that the Plug Division that coordinates with the pile body internal face and diameter are greater than described Plug Division; Described Plug Division of boring the ground tip is interspersed in the sleeve joint hole of pile body, forms the annular solder groove between the open end of the inclined plane part of tip and pile body with making brill, and the axial cross section of described annular solder groove is right-angled triangle or right-angled trapezium; Described pile body is welded into overall structure with brill ground tip at annular solder groove place.
2. a kind of split type spiral ground pile according to claim 1, is characterized in that: the pile body that described pile body is employing Q235B carbon steel material.
3. a kind of split type spiral ground pile according to claim 1, is characterized in that: the described brill ground tip of ground tip for employing 12Cr1MoV weathering steel material that bore.
4. a kind of split type spiral ground pile according to claim 1, it is characterized in that: the section area of described annular solder groove is more than or equal to 8mm2.
5. a kind of split type spiral ground pile according to claim 1 is characterized in that: described pile body end be provided with for fixing flange arrangement or the tight fixed bolt structure of outer body structure.
6. a kind of split type spiral ground pile according to claim 1, it is characterized in that: described pile body rearward end is provided with the arc stiffener and runs through stiffener and the through hole of pile body.
7. a kind of split type spiral ground pile according to claim 1, it is characterized in that: described point comprises the cut formula pointed cone of front end and the cutting edge of both sides.
8. a kind of split type spiral ground pile according to claim 1, is characterized in that: also be provided with the circular row water hole on described point.
9. a kind of split type spiral ground pile according to claim 1, it is characterized in that: described helical blade is endless spiral or segmentation helical blade.
10. according to the welding method of the described a kind of split type spiral ground pile of any one in claim 1-4, it is characterized in that carrying out according to the following steps:
1) joint docking: the Plug Division that will bore the ground tip is interspersed in the sleeve joint hole of pile body, forms the annular solder groove between the open end of the inclined plane part of tip and pile body with making brill, and the axial cross section of described annular solder groove is right-angled triangle or right-angled trapezium; Wherein, described pile body is for adopting the pile body of Q235B carbon steel material, and described brill ground tip is for adopting the brill ground tip of 12Cr1MoV weathering steel material;
2) preweld cleaning: pile body is removed with greasy dirt and the filth on the surface of boring ground tip butt welding part;
3) preheating: by pile body with bore the ground tip welding position is preheated to 150～180 ℃;
4) welding: pile body is welded in horizontally rotating position with boring the ground tip, select nickel-based welding wire ERNiCrMo-3, adopt the GTAW bottoming, manual electric arc welding filling, capping; Interlayer temperature is controlled at 180～200 ℃;
4-1) GTAW bottoming: the He that adopts the quality percentage composition to be respectively 80% Ar and 20% is as protection gas, and controlling gas flow is 8 L/Min; Electric power polarity is: straight polarity direct current, and electric current is 100A, voltage is 12V;
4-2) manual electric arc welding is filled: electric power polarity is: straight polarity direct current, and electric current is 120A, voltage is 15V;
4-3) manual electric arc welding capping: electric power polarity is: straight polarity direct current, and electric current is 120A, voltage is 15V;
5) postweld head treatment: after welding finishes, adopt immediately the heat insulating material butt welded seam and carry out covering and heat insulating near weld metal zone, make the joint Slow cooling; Subsequently, then weldment integral body is heated to 760 ℃, constant temperature, after 30 minutes, is cooled to room temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310005075.4A CN103061333B (en) | 2013-01-07 | 2013-01-07 | Split screw pile and welding method thereof |
| PCT/CN2013/070520 WO2014106358A1 (en) | 2013-01-07 | 2013-01-16 | Split screw pile and welding method thereof |
| JP2014555063A JP2015507109A (en) | 2013-01-07 | 2013-01-16 | Separate spiral pile and its welding method |
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| CN201310005075.4A CN103061333B (en) | 2013-01-07 | 2013-01-07 | Split screw pile and welding method thereof |
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| CN103061333A true CN103061333A (en) | 2013-04-24 |
| CN103061333B CN103061333B (en) | 2014-12-31 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103061333B (en) | 2014-12-31 |
| JP2015507109A (en) | 2015-03-05 |
| WO2014106358A1 (en) | 2014-07-10 |
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