CN113245402B - Low-cost titanium alloy creep shape correcting furnace - Google Patents

Low-cost titanium alloy creep shape correcting furnace Download PDF

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Publication number
CN113245402B
CN113245402B CN202110614839.4A CN202110614839A CN113245402B CN 113245402 B CN113245402 B CN 113245402B CN 202110614839 A CN202110614839 A CN 202110614839A CN 113245402 B CN113245402 B CN 113245402B
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China
Prior art keywords
furnace body
titanium alloy
straightening
bar
frame
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CN202110614839.4A
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Chinese (zh)
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CN113245402A (en
Inventor
陈修琳
钱超鹏
张雷
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Solomon Changzhou Alloy New Material Co ltd
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Solomon Changzhou Alloy New Material Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length

Abstract

The invention discloses a low-cost titanium alloy creep deformation straightening furnace, which relates to the technical field of metal creep deformation straightening equipment and comprises a furnace body and two heating assemblies, wherein the two heating assemblies are symmetrically arranged at two sides of the interior of the furnace body, a straightening mechanism is arranged in the furnace body, and a positioning mechanism is arranged in the furnace body. The straightening treatment of the titanium alloy bar is completed by contacting the straightening groove in the upper die with the upper surface of the titanium alloy bar, the titanium alloy bar is pressurized and fixed in a creep straightening furnace, meanwhile, argon is filled in the furnace, the titanium alloy bar is annealed, the creep straightening of the titanium alloy bar is realized, the problems of bar bending, bar straightening, bar waviness, bar twisting and bar straightening damage caused by mechanical straightening are solved, the problems of bar bending, bar straightening, bar waviness and bar straightening damage are solved, the titanium alloy bar is pressurized and fixed in the annealing process through the upper die and the lower die, the straightening effect of the bar can be further improved, and the thickness of oxide skin is reduced.

Description

Low-cost titanium alloy creep shape correcting furnace
Technical Field
The invention relates to the technical field of metal creep deformation straightening equipment, in particular to a low-cost titanium alloy creep deformation straightening furnace.
Background
Titanium alloy refers to a plurality of alloy metals made of titanium and other metals, and has high strength, good corrosion resistance and high heat resistance. At present, a bar straightening machine is mostly adopted for straightening titanium alloy bars for mechanical straightening and annealing straightening, but the two methods have obvious defects: the bar is bent in the straightening process of the bar straightening machine, and the bar is not straight; the bar is formed into a wave bend; twisting the bar; the invention provides a low-cost titanium alloy creep deformation straightening furnace, aiming at solving the problems that the defects of bar material damage correction and the like exist in annealing straightening, the defects of poor straightening effect, thick oxide skin, inconvenience for subsequent processing and the like exist.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a low-cost titanium alloy creep deformation straightening furnace, argon is filled into a furnace body through an air inlet pipe, two electric heating pipes heat to heat the interior of the furnace body, the temperature of the electric heating pipes is controlled by using a temperature controller, two servo electric cylinder driving shafts synchronously extend out to push a mounting frame downwards, an upper die and a lower die in the mounting frame are adapted, a straightening groove in the upper die is contacted with the upper surface of a titanium alloy bar, the servo electric cylinders are used for applying pressure to the mounting frame until the upper die and the lower die are closed, the upper surface and the lower surface of the titanium alloy bar are respectively contacted with the inner walls of a placing cavity and a straightening groove to finish the straightening treatment of the titanium alloy bar, the titanium alloy bar is pressurized and fixed in the creep deformation straightening furnace, meanwhile, the argon is filled into the furnace to anneal the titanium alloy bar, and the creep deformation of the titanium alloy bar is realized, the creep deformation correction in the mode solves the problems that the bar is bent and not straight, the bar is formed into a wave bend, the bar is twisted and the bar is corrected and damaged in the mechanical straightening process.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a low-cost titanium alloy creep deformation straightening furnace comprises a furnace body and two heating assemblies, wherein the two heating assemblies are symmetrically arranged on two sides of the interior of the furnace body;
the straightening mechanism comprises a heat insulation plate, a movable frame, a lower die, a mounting frame, an upper die, a servo electric cylinder and a fixing plate, wherein the heat insulation plate is arranged on the front side of the furnace body, a handle is arranged on the front side of the heat insulation plate, the movable frame is fixedly connected to the back side of the heat insulation plate, one side of the movable frame extends into the furnace body, a groove is formed in the movable frame, the lower die is arranged in the groove, the peripheral surface of the lower die is in clearance fit with the inner part of the groove, a plurality of placing cavities are formed in the lower die, limiting blocks are arranged on two sides of the inner parts of the placing cavities, the fixing plate is arranged above the inner part of the furnace body, the servo electric cylinders are arranged on two sides of the inner part of the fixing plate, one end of each of two servo electric cylinder driving shafts penetrates through the fixing plate and extends to the bottom of the fixing plate, the mounting frame is arranged below the fixing plate, and the one end that two servo electric cylinder drive shafts extend to the fixed plate bottom respectively with the both sides fixed connection at mounting bracket top, the inside of mounting bracket is provided with the mould, and goes up the inside of mould and set up a plurality of and place the aligning groove of chamber looks adaptation.
Preferably, the heating assembly comprises a fixing frame and electric heating tubes, the fixing frame is arranged on two sides of the interior of the furnace body, and the electric heating tubes are arranged in the two fixing frames.
Preferably, the right side of the furnace body is provided with a temperature controller, and the temperature controller is electrically connected with the electric heating tube through a conducting wire.
Preferably, positioning mechanism includes electric push rod, locating rack, fixed column, slide bar and spacing subassembly, the inside both sides of furnace body all are provided with thermal-insulated frame, and the inside of two thermal-insulated frames all is provided with electric push rod, the through-hole has all been seted up with the both sides of bed die to the adjustable shelf, and through-hole and electric push rod are on same horizontal center axis, and the diameter of through-hole is greater than the diameter of electric push rod drive shaft.
Preferably, the inside fixedly connected with locating rack of furnace body, and the global and the inside sliding connection of locating rack of adjustable shelf, the bilateral symmetry of locating rack is provided with the fixed column, and the both ends of fixed column and the front and back side fixed connection of furnace body inner wall, two equal sliding connection in inside of fixed column has the slide bar, and the one end of two slide bars all with the back fixed connection of heat insulating board.
Preferably, all be provided with spacing subassembly around the activity frame top, and spacing subassembly includes pivot and dog, the activity groove has all been seted up around the activity frame top, and the inside in four activity grooves all is provided with the pivot, the surface rotation of pivot is connected with the dog.
Preferably, the right side at furnace body top is provided with the intake pipe, and the bottom of intake pipe extends to the inside of furnace body.
Preferably, the size of the furnace body is 3000 x 1000mm, the size range of the titanium alloy bars is phi 5 x 2500-phi 30 x 2500mm, the size of the upper die and the lower die is 2800 x 100 x 800mm, the number of the placing cavities and the straightening grooves is 5, the highest temperature of the electric heating pipe is 920-960 ℃, the output pressure of the servo electric cylinder is 30-40MPa, the titanium alloy bars are softened in the process of the temperature rise of the electric heating pipe, the output shaft of the servo electric cylinder continuously extends out, and the constant output pressure is kept for the titanium alloy bars.
(III) advantageous effects
The invention provides a low-cost titanium alloy creep deformation straightening furnace. Compared with the prior art, the method has the following beneficial effects:
(1) argon is filled into the furnace body through an air inlet pipe, the two electric heating pipes generate heat to heat the interior of the furnace body, the temperature of the electric heating pipes is controlled by using a temperature controller, driving shafts of two servo electric cylinders synchronously extend out to push a mounting frame downwards, an upper die and a lower die in the mounting frame are matched, a straightening groove in the upper die is in contact with the upper surface of a titanium alloy bar, the servo electric cylinders are used for applying pressure to the mounting frame until the upper die and the lower die are closed, the upper surface and the lower surface of the titanium alloy bar are respectively in contact with the inner walls of a placing cavity and a straightening groove to finish straightening treatment of the titanium alloy bar, the titanium alloy bar is pressurized and fixed in a creep deformation straightening furnace, the argon is filled into the furnace to anneal the titanium alloy bar, creep deformation of the titanium alloy bar is realized, and the creep deformation straightening by adopting the mode can avoid bar bending and creep deformation in the mechanical straightening process, The bar is not straight, the bar forms the wave and bends, the bar twists reverse, the bar is corrected defects such as hinder, compare single annealing aligning, pressurize fixedly titanium alloy bar in annealing process through last mould and bed die, can further improve the aligning effect of bar, simultaneously because the surface of bar receives continuous pressure, can reduce the thickness of cinder, integrates annealing and aligning process, easy operation, reduce cost.
(2) The movable frame is pulled out from the inside of the furnace body, the movable frame slides outwards in the positioning frame, the specification selection of an upper die and a lower die is carried out according to the size of the processed titanium alloy bar, the upper die is installed in the mounting frame through bolts, the lower die is placed in a groove in the movable frame, four stop blocks are rotated, the lower die is limited in the movable frame through the four stop blocks, the installation of the upper die and the lower die in the furnace body is completed, the upper die and the lower die are matched through the titanium alloy bars with different specifications and sizes, the installation and the use of the upper die and the lower die are further selected, meanwhile, the lower die is limited in the movable frame through the four limiting components, the lower die is convenient to disassemble and assemble, the limiting blocks are pushed to the two ends of the titanium alloy bar through electric push rods on the two sides in the furnace body, and the limitation and the fixation of the titanium alloy bar in the placing cavity are further realized, the stability of the titanium alloy bar in the creep deformation orthopedic process is ensured.
Drawings
FIG. 1 is a schematic view of the structure of a low cost titanium alloy creep deformation orthopedic furnace of the present invention;
FIG. 2 is a top view of the internal structure of the furnace body and the movable frame according to the present invention;
FIG. 3 is a sectional view of the structure of the furnace body and the positioning mechanism of the present invention;
FIG. 4 is a top view of the internal structure of the furnace and heating element of the present invention;
FIG. 5 is an enlarged view of the structure of FIG. 2;
FIG. 6 is a cross-sectional view of the mounting bracket and upper mold structure of the present invention.
In the figure, 1, a furnace body; 2. a heat insulation plate; 3. a movable frame; 4. a lower die; 5. a mounting frame; 6. an upper die; 7. a servo electric cylinder; 8. a fixing plate; 9. a limiting block; 10. a fixed mount; 11. an electric heating tube; 12. an electric push rod; 13. a positioning frame; 14. fixing a column; 15. a slide bar; 16. a limiting component; 17. a rotating shaft; 18. a stopper; 19. a movable groove; 20. an air inlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a low-cost titanium alloy creep deformation straightening furnace comprises a furnace body 1 and two heating assemblies, wherein the two heating assemblies are symmetrically arranged on two sides of the interior of the furnace body 1, a straightening mechanism is arranged in the furnace body 1, a positioning mechanism is arranged in the furnace body 1, and the positioning mechanism is positioned on the left side of the straightening mechanism;
the straightening mechanism comprises a heat insulation plate 2, a movable frame 3, a lower die 4, a mounting frame 5, an upper die 6, servo electric cylinders 7 and a fixing plate 8, wherein the heat insulation plate 2 is arranged on the front side of a furnace body 1, a handle is arranged on the front side of the heat insulation plate 2, the movable frame 3 is fixedly connected to the back side of the heat insulation plate 2, one side of the movable frame 3 extends into the furnace body 1, a groove is formed in the movable frame 3, the lower die 4 is arranged in the groove, the peripheral surface of the lower die 4 is in clearance fit with the inner part of the groove, a plurality of placing cavities are formed in the lower die 4, limiting blocks 9 are arranged on two sides of the inner parts of the placing cavities, the fixing plate 8 is arranged above the inner part of the furnace body 1, the servo electric cylinders 7 are arranged on two sides of the inner part of the fixing plate 8, one end of driving shafts of the two servo electric cylinders 7 penetrates through the fixing plate 8 and extends to the bottom of the fixing plate 8, an installation frame 5 is arranged below the fixed plate 8, one ends of the two servo electric cylinder 7 driving shafts extending to the bottom of the fixed plate 8 are fixedly connected with two sides of the top of the installation frame 5 respectively, an upper die 6 is arranged inside the installation frame 5, and a plurality of straightening grooves matched with the placing cavities are formed in the upper die 6;
the heating assembly comprises fixed frames 10 and electric heating tubes 11, the fixed frames 10 are arranged on two sides inside the furnace body 1, the electric heating tubes 11 are arranged inside the two fixed frames 10, a temperature controller is arranged on the right side of the furnace body 1, and the temperature controller is electrically connected with the electric heating tubes 11 through conducting wires;
the positioning mechanism comprises an electric push rod 12, a positioning frame 13, a fixing column 14, a slide rod 15 and a limiting assembly 16, wherein heat insulation frames are arranged on two sides of the interior of the furnace body 1, the electric push rods 12 are arranged in the two heat insulation frames, through holes are formed in two sides of the movable frame 3 and two sides of the lower die 4, the through holes and the electric push rods 12 are on the same horizontal central axis, and the diameter of each through hole is larger than that of a driving shaft of the electric push rod 12; the inside of the furnace body 1 is fixedly connected with a positioning frame 13, the peripheral surface of the movable frame 3 is in sliding connection with the inside of the positioning frame 13, fixed columns 14 are symmetrically arranged on two sides of the positioning frame 13, two ends of each fixed column 14 are fixedly connected with the front side and the rear side of the inner wall of the furnace body 1, slide bars 15 are connected inside the two fixed columns 14 in a sliding manner, and one ends of the two slide bars 15 are fixedly connected with the back side of the heat insulation plate 2;
the periphery of the top of the movable frame 3 is provided with a limiting assembly 16, the limiting assembly 16 comprises a rotating shaft 17 and a stop block 18, the periphery of the top of the movable frame 3 is provided with movable grooves 19, the rotating shaft 17 is arranged inside each of the four movable grooves 19, and the surface of the rotating shaft 17 is rotatably connected with the stop block 18;
the right side at the top of furnace body 1 is provided with intake pipe 20, and the bottom of intake pipe 20 extends to the inside of furnace body 1.
And those not described in detail in this specification are well within the skill of those in the art.
The working principle of the titanium alloy creep deformation straightening furnace comprises the following steps:
firstly, pulling out a movable frame 3 from the inside of a furnace body 1, enabling the movable frame 3 to slide outwards in a positioning frame 13, selecting the specifications of an upper die 6 and a lower die 4 according to the size of a processed titanium alloy bar, installing the upper die 6 in an installation frame 5 through bolts, placing the lower die 4 in a groove in the movable frame 3, rotating four stop blocks 18, limiting the lower die 4 in the movable frame 3 by utilizing the four stop blocks 18, and completing the installation of the upper die 6 and the lower die 4 in the furnace body 1;
secondly, cutting two ends of a titanium alloy bar to be flat, then placing the titanium alloy bar into a placing cavity in a lower die 4, pushing a movable frame 3 into a furnace body 1 until a heat insulation plate 2 and the front surface of the furnace body 1 are closed, then starting an electric push rod 12, extending a driving shaft of the electric push rod 12 into the placing cavity from the inside of a through hole, pushing two limit blocks 9 to the two ends of the titanium alloy bar after the driving shaft of the electric push rod 12 is connected with one side of the limit blocks 9, and limiting the titanium alloy bar in the placing cavity by utilizing the two limit blocks 9;
and thirdly, argon is filled into the furnace body 1 through an air inlet pipe 20, then the electric heating pipes 11 on the two sides are started, the electric heating pipes 11 generate heat to heat the interior of the furnace body 1, the temperature of the electric heating pipes 11 is controlled by using a temperature controller, then the two servo electric cylinders 7 are started, the driving shafts of the two servo electric cylinders 7 synchronously extend out to push the mounting frame 5 downwards, the upper die 6 and the lower die 4 in the mounting frame 5 are matched, the straightening groove in the upper die 6 is in contact with the upper surface of the titanium alloy bar, the servo electric cylinders 7 are used for applying pressure to the mounting frame 5 until the upper die 6 and the lower die 4 are closed, the upper surface and the lower surface of the titanium alloy bar are in contact with the inner walls of the placing cavity and the straightening groove respectively, and the straightening treatment of the titanium alloy bar is completed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (2)

1. The utility model provides a low-cost titanium alloy creep deformation stove, includes furnace body (1) and two heating element, two heating element is located the inside bilateral symmetry setting of furnace body (1), its characterized in that: a straightening mechanism is arranged inside the furnace body (1), and a positioning mechanism is arranged inside the furnace body (1);
the straightening mechanism comprises a heat insulation plate (2), a movable frame (3), a lower die (4), a mounting frame (5), an upper die (6), servo electric cylinders (7) and a fixed plate (8), wherein the heat insulation plate (2) is arranged on the front side of the furnace body (1), the movable frame (3) is fixedly connected to the back side of the heat insulation plate (2), a groove is formed in the movable frame (3), the lower die (4) is arranged in the groove, a plurality of placing cavities are formed in the lower die (4), limiting blocks (9) are arranged on two sides of the interiors of the placing cavities, the fixed plate (8) is arranged above the interior of the furnace body (1), the servo electric cylinders (7) are arranged on two sides of the interior of the fixed plate (8), the mounting frame (5) is arranged below the fixed plate (8), and one end of a driving shaft of the two servo electric cylinders (7) is respectively and fixedly connected with two sides of the top of the mounting frame (5), an upper die (6) is arranged inside the mounting rack (5), and a plurality of straightening grooves matched with the placing cavities are formed inside the upper die (6);
the heating assembly comprises a fixing frame (10) and an electric heating tube (11), the fixing frame (10) is arranged on two sides in the furnace body (1), and the electric heating tube (11) is arranged in the two fixing frames (10);
the temperature controller is arranged on the right side of the furnace body (1), and the electric heating tube (11) is electrically connected with the temperature controller through a lead;
the positioning mechanism comprises an electric push rod (12), positioning frames (13), fixing columns (14), sliding rods (15) and a limiting assembly (16), heat insulation frames are arranged on two sides of the interior of the furnace body (1), the electric push rods (12) are arranged in the two heat insulation frames, and through holes are formed in the two sides of the movable frame (3) and the lower die (4);
the furnace body (1) is fixedly connected with a positioning frame (13) in the interior, fixing columns (14) are symmetrically arranged on two sides of the positioning frame (13), sliding rods (15) are connected to the two fixing columns (14) in a sliding mode, and one ends of the two sliding rods (15) are fixedly connected with the back face of the heat insulation plate (2);
the limiting assembly (16) comprises a rotating shaft (17) and a stop block (18), movable grooves (19) are formed in the periphery of the top of the movable frame (3), the rotating shaft (17) is arranged inside each of the four movable grooves (19), and the stop block (18) is rotatably connected to the surface of the rotating shaft (17);
the right side at furnace body (1) top is provided with intake pipe (20), and the bottom of intake pipe (20) extends to the inside of furnace body (1).
2. The low cost titanium alloy creep deformation furnace of claim 1, wherein: the working method of the titanium alloy creep deformation straightening furnace comprises the following steps:
firstly, selecting specifications of an upper die (6) and a lower die (4) according to the size of a processed titanium alloy bar, installing the upper die (6) into an installation frame (5) through bolts, and placing the lower die (4) into a groove in a movable frame (3) to complete installation of the upper die (6) and the lower die (4) in a furnace body (1);
secondly, cutting and flattening two ends of the titanium alloy bar, putting the cut and flattened titanium alloy bar into a placing cavity in a lower die (4), pushing a movable frame (3) into a furnace body (1), pushing two limiting blocks (9) to the two ends of the titanium alloy bar by a driving shaft of an electric push rod (12), and limiting the titanium alloy bar in the placing cavity by using the two limiting blocks (9);
and thirdly, argon is filled into the furnace body (1) through an air inlet pipe (20), an electric heating pipe (11) generates heat to heat the interior of the furnace body (1), driving shafts of two servo electric cylinders (7) synchronously extend out to push the mounting frame (5) downwards, a straightening groove in the upper die (6) is in contact with the upper surface of the titanium alloy bar, the servo electric cylinders (7) are utilized to apply pressure to the mounting frame (5) until the upper surface and the lower surface of the titanium alloy bar are in contact with the inner walls of the placing cavity and the straightening groove respectively, and the straightening treatment of the titanium alloy bar is completed.
CN202110614839.4A 2021-06-02 2021-06-02 Low-cost titanium alloy creep shape correcting furnace Active CN113245402B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115491622B (en) * 2022-09-29 2023-10-13 宝鸡市德立钛业有限责任公司 Annealing furnace and annealing method for titanium bars and titanium alloy bars

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Publication number Priority date Publication date Assignee Title
JPH09103823A (en) * 1995-10-11 1997-04-22 Kawasaki Heavy Ind Ltd Spring supporting metal tool and jig for edge-forming of long size subject and method for predicting spring-back of edge-forming
CN101443138A (en) * 2006-05-11 2009-05-27 Rti国际金属公司 Method and apparatus for creep forming of and relieving stress in an elongated metal bar
EP2295164A2 (en) * 2009-09-11 2011-03-16 Rolls-Royce plc A die former
CN104668316A (en) * 2015-02-25 2015-06-03 成都易态科技有限公司 Method and device for out-of-furnace straightening of sintered blank
CN104841727A (en) * 2015-05-29 2015-08-19 宝鸡钛业股份有限公司 Vacuum creep shape righting method for titanium and titanium alloy panels
CN206334978U (en) * 2016-12-23 2017-07-18 浙江申吉钛业股份有限公司 The elongated bar Isothermal Extrusion mould of titanium alloy

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09103823A (en) * 1995-10-11 1997-04-22 Kawasaki Heavy Ind Ltd Spring supporting metal tool and jig for edge-forming of long size subject and method for predicting spring-back of edge-forming
CN101443138A (en) * 2006-05-11 2009-05-27 Rti国际金属公司 Method and apparatus for creep forming of and relieving stress in an elongated metal bar
EP2295164A2 (en) * 2009-09-11 2011-03-16 Rolls-Royce plc A die former
CN104668316A (en) * 2015-02-25 2015-06-03 成都易态科技有限公司 Method and device for out-of-furnace straightening of sintered blank
CN104841727A (en) * 2015-05-29 2015-08-19 宝鸡钛业股份有限公司 Vacuum creep shape righting method for titanium and titanium alloy panels
CN206334978U (en) * 2016-12-23 2017-07-18 浙江申吉钛业股份有限公司 The elongated bar Isothermal Extrusion mould of titanium alloy

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