CN101947617A - Double-chamber high-temperature forging and forming device of TiAl intermetallic compound forge piece and method thereof - Google Patents
Double-chamber high-temperature forging and forming device of TiAl intermetallic compound forge piece and method thereof Download PDFInfo
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- CN101947617A CN101947617A CN 201010266524 CN201010266524A CN101947617A CN 101947617 A CN101947617 A CN 101947617A CN 201010266524 CN201010266524 CN 201010266524 CN 201010266524 A CN201010266524 A CN 201010266524A CN 101947617 A CN101947617 A CN 101947617A
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Abstract
The invention relates to a double-chamber high-temperature forging and forming device of a TiAl intermetallic compound forge piece and a method thereof, belonging to forming methods and devices of TiAl intermetallic compound forge pieces. The invention solves the problems of large heat loss, large deformation resistance, small forging deformation, difficult forging and the like generated when the traditional forging technology is used for forging the TiAl intermetallic compound forge piece. A blank heating chamber and a mould heating chamber are adjacently arranged and a movable baffle plate is arranged between the blank heating chamber and the mould heating chamber, and a hearth of the blank heating chamber and a hearth of the mould heating chamber are mutually penetrated and mutually independent by pulling the movable baffle plate up and down. TiAl blanks and a mould are heated to 1230-1300 DEG C and 800-1000 DEG C respectively in different heating chambers; the movable baffle plate is opened to push the TiAl blanks into the mould heating chamber along a carrying platform and put the TiAl blands into a mould cavity; and the mould is closed for forging. The invention is used for high-temperature forging and forming of TiAl intermetallic compound materials.
Description
Technical field
The present invention relates to a kind of manufacturing process and device of TiAl intermetallic compound kind forging, belong to the forging and forming technology technical field.
Background technology
Along with industry fast developments such as Aero-Space, automobile makings, industry has proposed more and more higher requirement to the performance of light heat-resisting structural material.Under this background, have low-density, high specific strength, high ratio modulus and excellent high-temperature mechanical property, the TiAl inter-metallic compound material of antioxygenic property becomes the emphasis of material area research in recent ten years, and might successfully replace the parts of traditional high-temperature structural material within some field certain limits---titanium-base alloy, nickel-base alloy.
But the TiAl intermetallic compound has L1
0The orderly crystal structure of type, crystal symmetry is low, slip system is few, has not only hard but also crisp mechanical characteristic below 1000 ℃, shapes very difficulty.To the forging and molding of TiAl material, need could carry out smoothly in the mode of the warm deformations such as temperature employing more than 1200 ℃ usually at present.Yet it is identical with blank temperature that traditional isothermal forging is crossed the range request mold temperature, do not have suitable mold materials can satisfy the requirement of carrying out ausforming under high temperature like this at present.If adopt common Forging Technology, reduce mould and die preheating and actual work temperature, then the high temperature blank is exceedingly fast to low temperature mould transmission heat in the forging process, make that high temperature blank heat radiation is too fast, resistance of deformation is increased sharply, each forging deformation amount is little, the mould damage is serious, be difficult to effectively be shaped required part even forging can't be finished.
Summary of the invention
The present invention is intended to solve problems such as the blank that exists when utilizing traditional FMT that the TiAl inter-metallic compound material is forged is too fast to the mould heat radiation, resistance of deformation big, the mould damage is serious, forging and molding is difficult to finish, and proposes a kind of two chambers high temperature forging building mortion and method of TiAl intermetallic compound kind forging.
The present invention solves the problems of the technologies described above the technical scheme of taking to be:
Two chambers high temperature forging building mortion of TiAl intermetallic compound kind forging of the present invention comprises blank high-temperature heating element 5, mould high-temperature heating element 19, punch 14 and die 17, described building mortion also comprises blank heating chamber 7, mold heated chamber 16 and active clapboard 10, be provided with active clapboard 10 between described blank heating chamber 7 and the 16 adjacent settings of mold heated chamber and the two, can realize that by spurring active clapboard 10 up and down the burner hearth of blank heating chamber 7 and the burner hearth of mold heated chamber 16 connect (when active clapboard 10 upwards draws and moves mutually, can realize that the burner hearth of blank heating chamber 7 and the burner hearth of mold heated chamber 16 connect mutually), the burner hearth of the burner hearth of blank heating chamber 7 and mold heated chamber 16 is separate (when active clapboard 10 inserts downwards, the burner hearth that can realize the burner hearth of blank heating chamber 7 and mold heated chamber 16 is separate, does not promptly connect); The working end of punch 14, die 17 all places in the mold heated chamber 16, and the profile of punch 14 constitutes TiAl intermetallic compound kind forging die cavity with corresponding up and down setting of the profile of die 17; Described blank heating chamber 7 and mold heated chamber 16 are the confined chamber body; In blank heating chamber 7, be provided with blank high-temperature heating element 5, mould high-temperature heating element 19, the last lower wall of mold heated chamber 16 is provided with mould high-temperature heating element 19.
Utilize two chambers high temperature forging manufacturing process of the TiAl intermetallic compound kind forging of the above-mentioned building mortion of right to realize according to following steps:
The present invention has following beneficial effect:
The present invention adopts independent two heating clambers adjacent and that can connect to heat blank and forging mold respectively, avoid blank in traditional forging process to move to a large amount of losses of heat the mold cavity process, TiAl intermetallic compound high temperature forging is shaped is easy to finish from heating furnace.The essence of the inventive method is to use a cover to have the heating system of the adjacent and heating clamber that can connect of two independence, respectively with forging mold and blank heating to different temperature, and the loss of blank empty calory can be moved quickly into and carry out forging and molding on the mould.
One, adopt independent two heating clambers adjacent and that can connect to heat blank and forging mold respectively, TiAl intermetallic compound blank 1 is fast moving in blank heating chamber 7 and mold heated chamber 16 all the time, and thermal loss is controlled at minimum degree.Effectively alleviated the resistance of deformation that causes owing to thermal loss in the forging process high between topic, make forging and molding carry out easily.
Two, process mold heated temperature of the present invention is 800 ℃～1000 ℃, is lower than 1230 ℃～1300 ℃ of TiAl intermetallic compound blank heating, can adopt high temperature alloy to make forging mold, has avoided the serious problem of mould damage in the forging process simultaneously.
Three, because temperature reduces situation during the TiAl blank deformation alleviation, resistance of deformation raise not obviously, improved the yield rate and the stock utilization of forged article, and effectively improved forging structure property and mechanical property.The corresponding increase of blank deformation amount in every time forging and molding has reduced the forging passage simultaneously, has reduced the energy loss that repeats to heat, and enhances productivity, rationally controlled production cost effectively.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention (two chambers high temperature forging building mortion); Fig. 2 is a schematic diagram of blank being put into mold cavity; Fig. 3 is the schematic diagram behind the forging and molding.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1, Fig. 2, Fig. 3 illustrates present embodiment, two chambers high temperature forging building mortion of the described TiAl intermetallic compound kind of present embodiment forging comprises blank high-temperature heating element 5, mould high-temperature heating element 19, punch 14 and die 17, it is characterized in that: described building mortion also comprises blank heating chamber 7, mold heated chamber 16 and active clapboard 10, be provided with active clapboard 10 between described blank heating chamber 7 and the 16 adjacent settings of mold heated chamber and the two, can realize that by spurring active clapboard 10 up and down the burner hearth of blank heating chamber 7 and the burner hearth of mold heated chamber 16 connect (when active clapboard 10 upwards draws and moves mutually, can realize that the burner hearth of blank heating chamber 7 and the burner hearth of mold heated chamber 16 connect mutually), the burner hearth of the burner hearth of blank heating chamber 7 and mold heated chamber 16 is separate (when active clapboard 10 inserts downwards, the burner hearth that can realize the burner hearth of blank heating chamber 7 and mold heated chamber 16 is separate, does not promptly connect); The working end of punch 14, die 17 places all that (punch 14 passes the upper end wall body of mold heated chamber 16 in the mold heated chamber 16, die 17 passes the lower end wall body of mold heated chamber 16, punch, die are installed on the forcing press, and punch, die and heating clamber are independently; Mold heated chamber 16 is complete stoves, it is the hole that mold heated chamber 16 upper and lower sides have been opened a punch-die size, punch-die can be put in the stove works), the profile of punch 14 constitutes TiAl intermetallic compound kind forging die cavity with corresponding up and down setting of the profile of die 17; Described blank heating chamber 7 and mold heated chamber 16 are the confined chamber body; In blank heating chamber 7, be provided with blank high-temperature heating element 5, mould high-temperature heating element 19, the last lower wall of mold heated chamber 16 is provided with mould high-temperature heating element 19.
Chamber of blank heating described in the present embodiment 7 and mold heated chamber 16 should be closely adjacent, and described active clapboard 10 is a thermal baffle.
The described punch 14 of present embodiment, die 17 should select high-temperature alloy material to make, because the operating temperature of punch 14, die 17 is more generally forged higher (800 ℃～1000 ℃).
The specific embodiment two: present embodiment is described in conjunction with Fig. 1, Fig. 2, Fig. 3, the described blank heating of present embodiment chamber 7 comprises blank heating chamber body of heater 3 and blank heating chamber fire door 8, and described blank heating chamber fire door 8 is installed on the sidewall away from the blank heating chamber body of heater 3 of mold heated chamber 16.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: present embodiment is described in conjunction with Fig. 1, Fig. 2, Fig. 3, the described mold heated of present embodiment chamber 16 comprises mold heated chamber body of heater 20 and mold heated chamber fire door 18, and described mold heated chamber fire door 18 is installed on the sidewall away from the mold heated chamber body of heater 20 of blank heating chamber 7.Other composition and annexation are identical with the specific embodiment two.
The specific embodiment four: present embodiment is described in conjunction with Fig. 1, Fig. 2, Fig. 3, the described building mortion of present embodiment also comprises material carrier platform 6, described material carrier platform 6 is positioned at the burner hearth of blank heating chamber 7 and mold heated chamber 16, be that described material carrier platform 6 parts place on the bottom face of blank heating chamber body of heater 3, another part of described material carrier platform 6 places on the bottom face of mold heated chamber body of heater 20, and the end face of another part of described material carrier platform 6 contacts with die 17.Material carrier platform 6 is used to carry blank, and can be under the situation of opening active clapboard 10, blank 1 is sent into from blank heating chamber 7 be positioned at mold heated chamber 16, is convenient to operation.Other composition and annexation are identical with the specific embodiment three.
The specific embodiment five: present embodiment is described in conjunction with Fig. 1, Fig. 2, Fig. 3, the described blank heating of present embodiment chamber 7 also comprises alumina silicate heat-insulation layer 4 (lightweight alumina silicate heat-insulation layer), and described blank heating chamber body of heater 3 and material carrier platform 6 all adopt the higher high temperature refractory fireclay block material of intensity to make; On the inner surface of material heating clamber body of heater 3 and material carrier platform 6, lay alumina silicate heat-insulation layer 4.Other composition and annexation are identical with the specific embodiment four.
The specific embodiment six: in conjunction with Fig. 1, Fig. 2, Fig. 3 present embodiment is described, the described active clapboard 10 of present embodiment, blank heating chamber fire door 8 and mold heated chamber fire door 18 all adopt the zirconia insulation material to make.Select the zirconia insulation material for use, have the convenient simultaneously unlatching of good heat insulation effect.Other composition and annexation are identical with the specific embodiment three, four or five.
The specific embodiment seven: present embodiment is described in conjunction with Fig. 1, Fig. 2, Fig. 3, the described mold heated of present embodiment chamber 16 also comprises carborundum mold heated floor 15, described mold heated chamber body of heater 20 is made by aluminum silicate insulation material, the inner surface of lower wall is respectively equipped with carborundum mold heated floor 15 on the body of heater 20 of mold heated chamber, and described mould high-temperature heating element 19 is arranged in the carborundum mold heated layer 15.Other composition and annexation are identical with the specific embodiment six.
The specific embodiment eight: in conjunction with Fig. 1, Fig. 2, Fig. 3 present embodiment is described, the described blank high-temperature heating element 5 of present embodiment is a silicon molybdenum heating rod; Described mould high-temperature heating element 19 is a resistance wire.Mold heated chamber 16 operating temperatures are in 800 ℃～1000 ℃, adopt resistance wire 19 heating to get final product satisfied temperature requirement.Other composition and annexation are identical with the specific embodiment one, two, three, four, five or seven.
The specific embodiment nine: present embodiment is described in conjunction with Fig. 1, Fig. 2, Fig. 3, the described building mortion of present embodiment also comprises two cooled plate 12 and two asbestos boards 13, have many water channels 11 on each cooled plate 12, the lower surface of the upper surface of punch 14, die 17 respectively is provided with a cooled plate 12; Respectively be provided with asbestos board 13 between punch 14 and the cooled plate 12 and between die 17 and the cooled plate 12.Can make mould uniformity of temperature profile in heating, forming process like this, thermal loss is little, has improved the efficiency of heating surface.Feed circulating water cooling during work, prevent that template from producing distortion, damage mould or former under the long-time big stress state of high temperature.Other composition and annexation are identical with the specific embodiment eight.
The specific embodiment ten: present embodiment is described in conjunction with Fig. 1, Fig. 2, Fig. 3, present embodiment is to utilize the manufacturing process of compounds forging between the form metal of the described building mortion of arbitrary specific embodiment in the specific embodiment one to nine, and two chambers high temperature forging manufacturing process of TiAl intermetallic compound kind forging is realized according to following steps:
The intermetallic compound of TiAl described in present embodiment forging blank 1 is Ti3Al, Ti2Al, TiAl, TiAl3 or TiAl2Nb.
The described method of present embodiment, before to the heating of blank 1 and forging mold (punch 14 and die 17), active clapboard 10 can be closed (i.e. insertion downwards), separate with the burner hearth of the burner hearth of guaranteeing blank heating chamber 7 and mold heated chamber 16, do not connect mutually, guarantee to add thermal effect.
The described method of present embodiment, before forging, the stride that carries out the mould Installation and Debugging earlier: punch 14, die 17 are installed on forcing press, need between mould and press, be laid cooled plate 12 simultaneously.And between mould and cooled plate 12, fill asbestos board insulation material (asbestos board 13); Mould is aligned, adjust forcing press moved cross beam bottom dead centre, to make things convenient for next step forging.
Carry out following elaboration again at the present invention:
Device of the present invention is designed to the mode of heating of two chambers heating according to forging and mold shape.Device of the present invention has the heating clamber that two independence is adjacent and can connect, and two heating clambers are respectively blank heating chamber 7 and mold heated chamber 16.Each heating clamber all has independently temperature heating, measurement, control system and leads to extraneous fire door.Separate the active clapboard 10 of two heating clambers and make, do not have heat flow down in working order and be easy to unlatching to guarantee two heating clambers by the zirconia light heat insulation material.Active clapboard 10 can be movable, makes things convenient for blank 1 to move to mold heated chamber 16 from blank heating chamber 7.Material carrier platform 6 is used to carry blank, and can be under the situation of opening active clapboard 10, blank 1 is sent into from blank heating chamber 7 be positioned at mold heated chamber 16, and mold cavity is put in clamping.The purpose of doing like this be exactly in traditional forging process blank move to a large amount of losses of heat the mold cavity process from heating furnace.The heating element heater of two heating clambers, insulation material should be selected corresponding material according to its operating temperature separately.Blank heating chamber 7 operating temperatures are in 1230 ℃～1300 ℃, adopt high-temperature heating element silicon molybdenum heating rod 5 to heat, blank heating chamber body of heater 3, material carrier platform 6 are owing to there is the requirement of structural strength aspect, all adopt the higher high temperature refractory fireclay block material of intensity, and lay the lightweight aluminum silicate insulation material to reach better heat insulation effect with the surface that is exposed to heating clamber in the junction of refractory brick.Blank heating chamber fire door 8 is selected the zirconia insulation material for use, has the convenient simultaneously unlatching of good heat insulation effect.Mold heated chamber 16 operating temperatures are in 800 ℃～1000 ℃, adopt resistance wire 19 heating to get final product satisfied temperature requirement, mold heated chamber burner hearth 15 is made by carbofrax material, light filling aluminum silicate insulation material in the heat-insulation layer 20 (mold heated chamber body of heater 20), the mold heated chamber fire door 18 same light heat insulation material zirconias of selecting.
Two heating clambers: blank heating chamber 7, mold heated chamber 16 should be closely adjacent, like this can so that TiAl intermetallic compound blank 1 fast as far as possible among blank heating chamber 7 moves to mold cavity the mold heated chamber 16, reduce thermal loss to greatest extent.Fully thermal insulation of dividing plate 10 simultaneously makes not have heat flow between two heating clambers under dividing plate 10 closure states in the course of work, and when preventing to work long hours, mold heated chamber 16 temperature exceed the design scope of application, and body of heater and mould are caused damage.
Because the general forging of operating temperature (800 ℃～1000 ℃) is higher, punch 14, die 17 materials should be selected high temperature alloy, and filling asbestos board thermal insulation board 13 up and down between mould and the cooled plate 12, make mould uniformity of temperature profile in heating, forming process, thermal loss is little, has improved the efficiency of heating surface like this.Need between mould and press, lay cooled plate 12 simultaneously, on cooled plate 12, process water channel 11, feed circulating water cooling during work, prevent that template from producing distortion, damage mould or former under the long-time big stress state of high temperature.
During work, mold heated chamber 16 and blank heating chamber 7 are heated forging mold 14,17 and TiAl intermetallic compound forging blank 1 respectively and are incubated.Concrete heating schedule needs to calculate acquisition according to the blank size with reference to the Forging Technology handbook.Mold heated to 800 ℃～1000 ℃, and blank heating to 1230 ℃～1300 ℃.
After mould reaches predetermined temperature, and TiAl blank 1 heat tracing finishes, open the thermal insulation board 10 between two chambers, utilize fire tongs or similar tool that blank 1 is pushed into mold heated chamber 16 along material carrier platform 6 from blank heating chamber 7, and clamping is put within the mold cavity.Because blank 1 moves in the atmosphere of heating all the time, does not experience room temperature environment, this has just been avoided blank in the conventional forging process process to transfer to thermal loss the mold cavity from heating furnace to the full extent.
Claims (10)
1. two chambers high temperature forging building mortion of a TiAl intermetallic compound kind forging, described building mortion comprises blank high-temperature heating element (5), mould high-temperature heating element (19), punch (14) and die (17), it is characterized in that: described building mortion also comprises blank heating chamber (7), mold heated chamber (16) and active clapboard (10), be provided with active clapboard (10) between described blank heating chamber (7) and the adjacent setting in mold heated chamber (16) and the two, can realize that by spurring active clapboard (10) up and down the burner hearth of blank heating chamber (7) and the burner hearth of mold heated chamber (16) connect mutually, the burner hearth of the burner hearth of blank heating chamber (7) and mold heated chamber (16) is separate; The working end of punch (14), die (17) all places in the mold heated chamber (16), and the profile of punch (14) constitutes TiAl intermetallic compound kind forging die cavity with corresponding up and down setting of the profile of die (17); Described blank heating chamber (7) and mold heated chamber (16) are the confined chamber body; In blank heating chamber (7), be provided with blank high-temperature heating element (5), mould high-temperature heating element (19), the last lower wall of mold heated chamber (16) is provided with mould high-temperature heating element (19).
2. two chambers high temperature forging building mortion of TiAl intermetallic compound kind forging according to claim 1, it is characterized in that: described blank heating chamber (7) comprises blank heating chamber body of heater (3) and blank heating chamber fire door (8), and described blank heating chamber fire door (8) is installed on the sidewall away from the blank heating chamber body of heater (3) of mold heated chamber (16).
3. two chambers high temperature forging building mortion of TiAl intermetallic compound kind forging according to claim 2, it is characterized in that: described mold heated chamber (16) comprises mold heated chamber body of heater (20) and mold heated chamber fire door (18), and described mold heated chamber fire door (18) is installed on the sidewall away from the mold heated chamber body of heater (20) of blank heating chamber (7).
4. two chambers high temperature forging building mortion of TiAl intermetallic compound kind forging according to claim 3, it is characterized in that: described building mortion also comprises material carrier platform (6), described material carrier platform (6) is positioned at the burner hearth of blank heating chamber (7) and mold heated chamber (16), be that described material carrier platform (a 6) part places on the bottom face of blank heating chamber body of heater (3), another part of described material carrier platform (6) places on the bottom face of mold heated chamber body of heater (20), and the end face of another part of described material carrier platform (6) contacts with die (17).
5. two chambers high temperature forging building mortion of TiAl intermetallic compound kind forging according to claim 4, it is characterized in that: described blank heating chamber (7) also comprises alumina silicate heat-insulation layer (4), and described blank heating chamber body of heater (3) and material carrier platform (6) all adopt the higher high temperature refractory fireclay block material of intensity to make; On the inner surface of material heating clamber body of heater (3) and material carrier platform (6), lay alumina silicate heat-insulation layer (4).
6. according to two chambers high temperature forging building mortion of claim 3,4 or 5 described TiAl intermetallic compound kind forging, it is characterized in that: described active clapboard (10), blank heating chamber fire door (8) and mold heated chamber fire door (18) all adopt the zirconia insulation material to make.
7. two chambers high temperature forging building mortion of TiAl intermetallic compound kind forging according to claim 6, it is characterized in that: described mold heated chamber (16) also comprises carborundum mold heated floor (15), described mold heated chamber body of heater (20) is made by aluminum silicate insulation material, the inner surface that mold heated chamber body of heater (20) is gone up lower wall is respectively equipped with carborundum mold heated floor (15), and described mould high-temperature heating element (19) is arranged in the carborundum mold heated layer (15).
8. according to two chambers high temperature forging building mortion of claim 1,2,3,4,5 or 7 described TiAl intermetallic compound kind forging, it is characterized in that: described blank high-temperature heating element (5) is a silicon molybdenum heating rod; Described mould high-temperature heating element (19) is a resistance wire.
9. two chambers high temperature forging building mortion of TiAl intermetallic compound kind forging according to claim 8, it is characterized in that: described building mortion also comprises two cooled plate (12) and two asbestos boards (13), have many water channels (11) on each cooled plate (12), the lower surface of the upper surface of punch (14), die (17) respectively is provided with a cooled plate (12); Respectively be provided with asbestos board (13) between punch (14) and the cooled plate (12) and between die (17) and the cooled plate (12).
10. two chambers high temperature forging manufacturing process that utilizes the TiAl intermetallic compound kind forging of the described building mortion of arbitrary claim in the claim 1 to 9, it is characterized in that: described method realizes according to following steps:
Step 1, TiAl intermetallic compound forge piece blank reheating 1 put into heat on the material carrier platform 6 of blank heating chamber 7 and be incubated, meanwhile, in mold heated chamber (16), forging mold punch (14) and die (17) are heated and be incubated; Punch (14) and die (17) are heated to 800 ℃～1000 ℃, TiAl intermetallic compound forge piece blank reheating (1) is heated to 1230 ℃～1300 ℃;
Step 2, when forging mold punch (14) and die (17) when reaching predetermined temperature, and after TiAl intermetallic compound forge piece blank reheating (1) heat tracing finishes, open the movable thermal insulation board (10) between blank heating chamber (7) and mold heated chamber (16), TiAl intermetallic compound forge piece blank reheating (1) is pushed in the mold heated chamber (16) from blank heating chamber (7) along material carrier platform (6), and clamping is put within the die cavity of die (17);
Step 3, close dividing plate (10), blank heating chamber fire door (8) and mold heated chamber fire door (18), prepare to forge;
Step 4, forging: punch (14), die (17) carry out matched moulds, pressurize under the press effect, finish forging process; The mold cavity internal shaping that TiAl intermetallic compound forge piece blank reheating (1) constitutes at punch (14), die (17), thus TiAl intermetallic compound forging finished product (2) obtained.
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| CN108941433A (en) * | 2018-07-14 | 2018-12-07 | 杨传平 | It is a kind of that workpiece can be stablized to hot forging pressure device fixed and that workpiece can be accelerated cooling |
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| CN111593278A (en) * | 2020-04-29 | 2020-08-28 | 西北工业大学 | TiAl alloy near-isothermal forging method |
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| US20190017158A1 (en) * | 2017-07-14 | 2019-01-17 | MTU Aero Engines AG | High-temperature forging, particularly of titanium aluminides |
| CN107471516A (en) * | 2017-08-29 | 2017-12-15 | 重庆梦赛力士光电股份有限公司 | A kind of telescope prism hot pressing integrated apparatus |
| CN108704968A (en) * | 2018-05-31 | 2018-10-26 | 浙江智造热成型科技有限公司 | A kind of drop stamping technique and thermoforming production line |
| CN109047430A (en) * | 2018-05-31 | 2018-12-21 | 浙江智造热成型科技有限公司 | A kind of drop stamping technique and heating punching press all-in-one oven |
| CN108941433A (en) * | 2018-07-14 | 2018-12-07 | 杨传平 | It is a kind of that workpiece can be stablized to hot forging pressure device fixed and that workpiece can be accelerated cooling |
| CN110052506A (en) * | 2019-06-03 | 2019-07-26 | 平湖市良正五金科技有限公司 | A kind of production technology of aluminum profile |
| CN110052506B (en) * | 2019-06-03 | 2021-05-14 | 平湖市良正五金科技股份有限公司 | Production process of aluminum profile |
| CN111593278A (en) * | 2020-04-29 | 2020-08-28 | 西北工业大学 | TiAl alloy near-isothermal forging method |
| CN114101554A (en) * | 2020-08-31 | 2022-03-01 | 西北有色金属研究院 | Multidirectional forging method of nickel-rich nickel-titanium intermetallic compound |
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