CN1718810A - Method and device for preparing magnesium alloy semi solid state blank - Google Patents
Method and device for preparing magnesium alloy semi solid state blank Download PDFInfo
- Publication number
- CN1718810A CN1718810A CN 200510010178 CN200510010178A CN1718810A CN 1718810 A CN1718810 A CN 1718810A CN 200510010178 CN200510010178 CN 200510010178 CN 200510010178 A CN200510010178 A CN 200510010178A CN 1718810 A CN1718810 A CN 1718810A
- Authority
- CN
- China
- Prior art keywords
- magnesium alloy
- die
- right cylinder
- isometrical
- strand material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Forging (AREA)
- Extrusion Of Metal (AREA)
Abstract
A process for preparing the semi-solid Mg-alloy blank, which has fine crystal grains and high spheroidized degree of crystal grains, includes such steps as providing an isometric angle die set, moving the male die downward to press a cylindrical Mg-alloy blank while squeezing the previously pressed one out of the die set, and heating the pressed one at 515-560 deg.C in argon gas for 15-30 min. Its apparatus, that is a die set, is also disclosed.
Description
Technical field:
The present invention relates to a kind of preparation method and device of alloy billet, be specifically related to a kind of method and device for preparing magnesium alloy semi-solid state blank.
Background technology:
Magnesium alloy as structured material because have that proportion is little, specific tenacity and specific rigidity height, heat conduction and conduct electricity very well, machinability is good, be easy to shape and advantage such as recovery, be widely used in fields such as automobile, Aeronautics and Astronautics, electronics and weaponrys, be described as " the green engineering material of 21 century ".Along with the continuous increase of magnesium alloy structural part application percentage, also more and more higher to the requirement of Mg alloy formed technology.Semi-solid state forming technique has become one of most important forming technique of magnesium alloy structural part, because magnesium alloy plastic deformation ability difference and point of ignition are low, the bottleneck problem of magnesium alloy semi solid state forming technique mainly is the preparation problem of magnesium alloy semi-solid state blank.Adopt traditional SIMA (strain inducing-fusing activates) to prepare problem though method can solve magnesium alloy semi-solid state blank, but, because traditional SIMA method is to adopt magnesium alloy blank pier to carry out isothermal processes again after thick, because mushrooming deformation can not produce big viscous deformation for the material that magnesium alloy is highly brittle like this, therefore the magnesium alloy semi-solid state blank that adopts this method to make exists grain-size big (grain-size is generally about 150 μ m), the low problem of member mechanical property that crystal grain nodularization degree is low, made.In recent years, improved SIMA method is arisen at the historic moment, it is to utilize not wait curve that the magnesium alloy blank is carried out forward extrusion, shear, and then carry out isothermal processes, though the magnesium alloy semi-solid state blank that adopts this method to make can solve the grain refining problem, but do not wait curve to the forward extrusion of magnesium alloy blank owing to adopt, therefore need add bigger pressure to the magnesium alloy blank could be with diameter＜100mm, the magnesium alloy blank of length＜150mm is extruded, and the squeeze pressure that exists circulation extruding repeatedly to bring is big, the cost height, efficient is low, equipment tonnage is big, facility investment is big, the used fragile problem of mould of preparation magnesium alloy semi-solid state blank.
Summary of the invention:
The objective of the invention is to have the low problem of member mechanical property that grain-size is big, crystal grain nodularization degree is low, make and adopt improved SIMA legal system to be equipped with magnesium alloy semi-solid state blank and have that squeeze pressure is big, cost is high, efficient is low, equipment tonnage is big, facility investment is big for solve adopting traditional SIMA legal system to be equipped with magnesium alloy semi-solid state blank, and can only the little magnesium alloy semi-solid state blank problem of manufacturing dimension specification and a kind of method and device for preparing magnesium alloy semi-solid state blank of providing.Method of the present invention is finished by following steps: a, angle, isometrical road extruding: will be through mechanical workout, diameter is 40～150mm, length is that the magnesium alloy right cylinder strand material 6 of 80～200mm is put in the die 5 of isometrical road angle mould tool 10, the radial direction through hole 3-1 of the die case 3 in die 5 and the isometrical road angle mould tool 10 is connected, punch 8 descending extrusion magnesium alloy right cylinder strand material 6 in the isometrical road angle mould tool 10, when punch 8 comes downwards to last hole wall height H apart from the radial direction through hole 3-1 of die case 3, punch 8 is up, next root magnesium alloy right cylinder strand material is put into die 5, next root magnesium alloy right cylinder strand material of punch 8 descending extruding then, squeeze pressure is 2000～8000kN, a last magnesium alloy right cylinder strand material 6 that utilizes next root magnesium alloy right cylinder strand material to be extruded is extruded from the radial direction through hole 3-1 of die case 3, and every magnesium alloy right cylinder strand material all passes through the extruding of angle, the isometrical road of a time; B, insulation spheroidizing: with putting into resistance furnace through the magnesium alloy right cylinder strand material of angle, the isometrical road of a time extruding in a step, under argon shield, magnesium alloy right cylinder strand material is heated to 515～560 ℃, insulation 15～30min.Device of the present invention is made up of isometrical road angle mould tool 10; Isometrical road angle mould tool 10 is made up of top plate 1, set collar 2, die case 3, lower bolster 4, die 5, pressing plate 7, punch 8, backing plate 9; Fixedly connected with the lower surface of die case 3 in the upper surface of lower bolster 4, die case 3 internal fixing are equipped with die 5, die 5 has isometrical road corner channel 5-1, isometrical road corner channel 5-1 is connected with the radial direction through hole 3-1 of die case 3, fixedly connected with the lower surface of pressing plate 7 respectively in the upper surface of the upper surface of die case 3 and die 5, die 5 is coaxial with punch 8, the upper end of punch 8 is contained in the set collar 2, fixedlying connected with the lower surface of backing plate 9 in the upper surface of set collar 2, fixedlys connected with top plate 1 in the upper surface of backing plate 9.
The present invention has following beneficial effect: one, the present invention adopts new SIMA legal system to be equipped with magnesium alloy semi-solid state blank, the magnesium alloy semi-solid state blank of producing by this manufacture method, its grain-size is below 50 μ m, grain-size is tiny, and crystal grain nodularization degree height, the member mechanical property height of making by this magnesium alloy semi-solid state blank.Two, the present invention will be through mechanical workout, diameter is 40～150mm, length is that the magnesium alloy right cylinder strand material of 80～200mm is put in the isometrical road of the present invention angle mould tool, descending and punch pushes the last magnesium alloy right cylinder strand material that next root magnesium alloy right cylinder strand material will be extruded and extrudes from the radial direction through hole of die case by punch, magnesium alloy right cylinder strand material is only through the extruding of angle, the isometrical road of a time, thereby this manufacture method is simple, operation easily, adopt the magnesium alloy semi-solid state blank of this method manufacturing not only can enhance productivity, also cost-saved.Three, adopt isometrical road angle mould tool, magnesium alloy right cylinder strand material has only shearing strain at Dao Jiaochu, does not have crimp, thereby need not large-tonnage equipment, facility investment little (can save facility investment about 30%), and can prolong work-ing life of isometrical road angle mould tool.
Description of drawings:
Fig. 1 is the structural representation of the punch 8 in the isometrical road of the present invention angle mould tool 10 when coming downwards to lower-most point extrusion magnesium alloy right cylinder strand material 6, Fig. 2 is the A-A sectional structure synoptic diagram of Fig. 1, Fig. 3 is the structural representation of isometrical road of the present invention angle mould tool 10, and Fig. 4 is the plan structure synoptic diagram of die 5.
Embodiment:
Embodiment one: in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 illustrates present embodiment, present embodiment is finished by following steps: a, angle, isometrical road extruding: will be through mechanical workout, diameter is 40～150mm, length is that the magnesium alloy right cylinder strand material 6 of 80～200mm is put in the die 5 of isometrical road angle mould tool 10, the radial direction through hole 3-1 of the die case 3 in die 5 and the isometrical road angle mould tool 10 is connected, punch 8 descending extrusion magnesium alloy right cylinder strand material 6 in the isometrical road angle mould tool 10, when punch 8 comes downwards to last hole wall height H apart from the radial direction through hole 3-1 of die case 3, punch 8 is up, next root magnesium alloy right cylinder strand material is put into die 5, next root magnesium alloy right cylinder strand material of punch 8 descending extruding then, squeeze pressure is 2000～8000kN, a last magnesium alloy right cylinder strand material 6 that utilizes next root magnesium alloy right cylinder strand material to be extruded is extruded from the radial direction through hole 3-1 of die case 3, and every magnesium alloy right cylinder strand material all passes through the extruding of angle, the isometrical road of a time; B, insulation spheroidizing: with putting into resistance furnace through the magnesium alloy right cylinder strand material of angle, the isometrical road of a time extruding in a step, under argon shield, magnesium alloy right cylinder strand material is heated to 515～560 ℃, insulation 15～30min.
Embodiment two: present embodiment is described in conjunction with Fig. 1, Fig. 4, the difference of present embodiment and embodiment one is: in a step of present embodiment, when punch 8 comes downwards to when the last hole wall height H of the radial direction through hole 3-1 of die case 3 is 8～12mm, punch 8 is up.Height H is limited in this scope, not only be beneficial to next root magnesium alloy right cylinder strand material is put into die 5, also be beneficial to punch 8 simultaneously next root magnesium alloy right cylinder strand material is pushed, and will go up the magnesium alloy right cylinder strand material that a velamen pushed by this squeeze pressure and from the radial direction through hole 3-1 of die case 3, extrude.
Embodiment three: present embodiment is described in conjunction with Fig. 1, Fig. 4, the difference of present embodiment and embodiment two is: in a step of present embodiment, when punch 8 comes downwards to when the last hole wall height H of the radial direction through hole 3-1 of die case 3 is 10mm, punch 8 is up.Adopt above-mentioned technical parameter, can easily magnesium alloy right cylinder strand material be extruded in the radial direction through hole 3-1 of die case 3.
Embodiment four: present embodiment is described in conjunction with Fig. 1, Fig. 4, the difference of present embodiment and embodiment one is: in a step of present embodiment, will through mechanical workout, diameter is that 120mm, length are that the magnesium alloy right cylinder strand material 6 of 160mm is put in the die 5 of isometrical road angle mould tool 10.This manufacture method is compared with the method that existing SIMA legal system is equipped with magnesium alloy semi-solid state blank, and the diameter of magnesium alloy right cylinder strand material and length all have increase in various degree, is beneficial to this manufacture method and makes large-sized magnesium alloy semi-solid state blank.
Embodiment five: the difference of present embodiment and embodiment one is: in the b step of present embodiment, the Heating temperature of magnesium alloy right cylinder strand material is 540 ℃, insulation 20min.Adopt suitable Heating temperature and soaking time, not only be beneficial to grain refining, also can improve crystal grain nodularization degree simultaneously.
Embodiment six: the difference of present embodiment and embodiment one is: in the b step of present embodiment, the Heating temperature of magnesium alloy right cylinder strand material is 520 ℃, insulation 25min.Adopt above-mentioned Heating temperature and soaking time, can make grain refining.
Embodiment seven: the difference of present embodiment and embodiment one is: in the b step of present embodiment, the Heating temperature of magnesium alloy right cylinder strand material is 555 ℃, insulation 15min.For larger-size magnesium alloy right cylinder strand material, can adopt above-mentioned Heating temperature and soaking time, be beneficial to grain refining.
Embodiment eight: in conjunction with Fig. 3, Fig. 4 present embodiment is described, the device of the preparation magnesium alloy semi-solid state blank of present embodiment is made up of isometrical road angle mould tool 10; Isometrical road angle mould tool 10 is made up of top plate 1, set collar 2, die case 3, lower bolster 4, die 5, pressing plate 7, punch 8, backing plate 9; Fixedly connected with the lower surface of die case 3 in the upper surface of lower bolster 4, die case 3 internal fixing are equipped with die 5, die 5 has isometrical road corner channel 5-1, isometrical road corner channel 5-1 is connected with the radial direction through hole 3-1 of die case 3, fixedly connected with the lower surface of pressing plate 7 respectively in the upper surface of the upper surface of die case 3 and die 5, die 5 is coaxial with punch 8, the upper end of punch 8 is contained in the set collar 2, fixedlying connected with the lower surface of backing plate 9 in the upper surface of set collar 2, fixedlys connected with top plate 1 in the upper surface of backing plate 9.Isometrical road of the present invention angle mould tool 10 can not only satisfy new strain inducing technology, but also has saved operation, and can make the grain refining of magnesium alloy right cylinder strand material.
Embodiment nine: in conjunction with Fig. 3, Fig. 4 present embodiment is described, the difference of present embodiment and embodiment eight is: the die 5 of present embodiment is the inverted cone shape, and die 5 is made up of a pair of half die 5-2 that interlocks.Adopt the die 5 of this structure, not only be beneficial to the assembling of die 5 and die case 3, when magnesium alloy right cylinder strand material is exerted pressure, also can protect die 5 not damage in that punch 8 is descending simultaneously, thereby prolong the work-ing life of isometrical road angle mould tool 10.
Embodiment ten: in conjunction with Fig. 1, Fig. 3, Fig. 4 present embodiment is described, the aperture Φ 2 of diameter of phi 1≤radial direction through hole 3-1 of the isometrical road corner channel 5-1 of present embodiment.Adopt said structure, in the time of can guaranteeing that magnesium alloy right cylinder strand material is extruded from radial direction through hole 3-1 non-resistance or with resistance drop to minimum.Other composition and annexation are identical with embodiment eight.
Embodiment 11: the method for preparing magnesium alloy semi-solid state blank of present embodiment is finished by following steps: a, angle, isometrical road extruding: will be through mechanical workout, the AZ91D magnesium alloy right cylinder strand material 6 of Φ 150 * 200mm is put in the die 5 of isometrical road angle mould tool 10, the radial direction through hole 3-1 of the die case 3 in die 5 and the isometrical road angle mould tool 10 is connected, punch 8 descending extrusion magnesium alloy right cylinder strand material 6 in the isometrical road angle mould tool 10, when punch 8 comes downwards to when the last hole wall height H of the radial direction through hole 3-1 of die case 3 is 10mm, punch 8 is up, next root magnesium alloy right cylinder strand material is put into die 5, next root magnesium alloy right cylinder strand material of punch 8 descending extruding then, squeeze pressure is 7000kN, a last magnesium alloy right cylinder strand material 6 that utilizes next root magnesium alloy right cylinder strand material to be extruded is extruded from the radial direction through hole 3-1 of die case 3, and every magnesium alloy right cylinder strand material all passes through the extruding of angle, the isometrical road of a time; B, insulation spheroidizing: with putting into resistance furnace through the magnesium alloy right cylinder strand material of angle, the isometrical road of a time extruding in a step, under argon shield, magnesium alloy right cylinder strand material is heated to 550 ℃, insulation 15min.In the bigger magnesium alloy semi-solid state blank of manufacturing dimension, adopt above-mentioned technical parameter can make grain refining, crystal grain nodularization degree height.Store and keeping for convenient, magnesium alloy semi-solid state blank can be put into the quenching-in water identical, put into warehouse storage afterwards again with ambient temperature; Also can directly magnesium alloy semi-solid state blank be put into mould and make the semi-solid-state shaping product.
Claims (10)
1, a kind of method for preparing magnesium alloy semi-solid state blank, it is characterized in that it is finished by following steps: a, angle, isometrical road extruding: will be through mechanical workout, diameter is 40～150mm, length is that the magnesium alloy right cylinder strand material (6) of 80～200mm is put in the die (5) of isometrical road angle mould tool (10), the radial direction through hole (3-1) of the die case (3) in die (5) and the isometrical road angle mould tool (10) is connected, punch (8) descending extrusion magnesium alloy right cylinder strand material (6) in the isometrical road angle mould tool (10), when punch (8) comes downwards to last hole wall height (H) apart from the radial direction through hole (3-1) of die case (3), punch (8) is up, next root magnesium alloy right cylinder strand material is put into die (5), next root magnesium alloy right cylinder strand material of the descending extruding of punch (8) then, squeeze pressure is 2000～8000kN, a last magnesium alloy right cylinder strand material (6) that utilizes next root magnesium alloy right cylinder strand material to be extruded is extruded from the radial direction through hole (3-1) of die case (3), and every magnesium alloy right cylinder strand material all passes through the extruding of angle, the isometrical road of a time; B, insulation spheroidizing: with putting into resistance furnace through the magnesium alloy right cylinder strand material of angle, the isometrical road of a time extruding in a step, under argon shield, magnesium alloy right cylinder strand material is heated to 515～560 ℃, insulation 15～30min.
2, the method for preparing magnesium alloy semi-solid state blank according to claim 1 is characterized in that in a step, and when punch (8) comes downwards to when the last hole wall height (H) of the radial direction through hole (3-1) of die case (3) is 8～12mm, punch (8) is up.
3, the method for preparing magnesium alloy semi-solid state blank according to claim 2 is characterized in that in a step, and when punch (8) came downwards to last hole wall height (H) apart from the radial direction through hole (3-1) of die case (3) for 10mm, punch (8) was up.
4, the method for preparing magnesium alloy semi-solid state blank according to claim 1, it is characterized in that in a step, will through mechanical workout, diameter is that 120mm, length are that the magnesium alloy right cylinder strand material (6) of 160mm is put in the die (5) of isometrical road angle mould tool (10).
5, the method for preparing magnesium alloy semi-solid state blank according to claim 1 is characterized in that the Heating temperature of the magnesium alloy right cylinder strand material in the b step is 540 ℃, insulation 20min.
6, the method for preparing magnesium alloy semi-solid state blank according to claim 1 is characterized in that the Heating temperature of the magnesium alloy right cylinder strand material in the b step is 520 ℃, insulation 25min.
7, the method for preparing magnesium alloy semi-solid state blank according to claim 1 is characterized in that the Heating temperature of the magnesium alloy right cylinder strand material in the b step is 555 ℃, insulation 15min.
8, a kind of device for preparing magnesium alloy semi-solid state blank is characterized in that it is made up of isometrical road angle mould tool (10); Isometrical road angle mould tool (10) is made up of top plate (1), set collar (2), die case (3), lower bolster (4), die (5), pressing plate (7), punch (8), backing plate (9); Fixedly connected with the lower surface of die case (3) in the upper surface of lower bolster (4), die case (3) internal fixing is equipped with die (5), die (5) has isometrical road corner channel (5-1), isometrical road corner channel (5-1) is connected with the radial direction through hole (3-1) of die case (3), fixedly connected with the lower surface of pressing plate (7) respectively in the upper surface of the upper surface of die case (3) and die (5), die (5) is coaxial with punch (8), the upper end of punch (8) is contained in the set collar (2), fixedlying connected with the lower surface of backing plate (9) in the upper surface of set collar (2), fixedlys connected with top plate (1) in the upper surface of backing plate (9).
9, the device of preparation magnesium alloy semi-solid state blank according to claim 8 is characterized in that die (5) is the inverted cone shape, and die (5) is made up of a pair of half die (5-2) that interlocks.
10, the device of preparation magnesium alloy semi-solid state blank according to claim 8 is characterized in that the aperture (Φ 2) of diameter (the Φ 1)≤radial direction through hole (3-1) of isometrical road corner channel (5-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510010178 CN1718810A (en) | 2005-07-13 | 2005-07-13 | Method and device for preparing magnesium alloy semi solid state blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510010178 CN1718810A (en) | 2005-07-13 | 2005-07-13 | Method and device for preparing magnesium alloy semi solid state blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1718810A true CN1718810A (en) | 2006-01-11 |
Family
ID=35930758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510010178 Pending CN1718810A (en) | 2005-07-13 | 2005-07-13 | Method and device for preparing magnesium alloy semi solid state blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1718810A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856678A (en) * | 2010-06-29 | 2010-10-13 | 中南大学 | Device capable of realizing accurate control of equal-channel angular extrusion processing route |
| CN103128255A (en) * | 2011-11-22 | 2013-06-05 | 中国兵器工业第五九研究所 | Die and method used for preparing magnesium alloy semisolid blank |
| CN104014608A (en) * | 2014-06-05 | 2014-09-03 | 徐州工程学院 | Multi-corner composite equal channel angular twist extrusion die |
| CN105080992A (en) * | 2015-09-30 | 2015-11-25 | 广西大学 | Equal channel angular pressing device of ultrasonic vibration male die |
| CN105170681A (en) * | 2015-09-30 | 2015-12-23 | 广西大学 | Equal channel angular extrusion device of ultrasonic vibration female die |
| CN105176732A (en) * | 2015-08-31 | 2015-12-23 | 广西运亨酒业有限公司 | Fruity litchi wine |
| CN105396888A (en) * | 2015-09-30 | 2016-03-16 | 广西大学 | Equal-diameter angle extrusion device under combined effect of ultrasound waves and back pressure |
| CN106955979A (en) * | 2017-04-19 | 2017-07-18 | 哈尔滨工业大学 | The preparation method of GH4037 high temperature alloy semi solid slurries |
| CN107931434A (en) * | 2017-11-17 | 2018-04-20 | 哈尔滨工业大学 | A kind of wrought aluminium alloy complex casing part Semi-Solid Thixoforming pressurizing unit and its application method |
| CN109202031A (en) * | 2018-10-25 | 2019-01-15 | 成都先进金属材料产业技术研究院有限公司 | The preparation method of the automobile-used alloy semi-solid blank of predeformation |
| CN110369541A (en) * | 2019-08-05 | 2019-10-25 | 燕山大学 | Channel pressings mold and its application methods such as a kind of axial-radial alternative expression |
-
2005
- 2005-07-13 CN CN 200510010178 patent/CN1718810A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856678A (en) * | 2010-06-29 | 2010-10-13 | 中南大学 | Device capable of realizing accurate control of equal-channel angular extrusion processing route |
| CN103128255A (en) * | 2011-11-22 | 2013-06-05 | 中国兵器工业第五九研究所 | Die and method used for preparing magnesium alloy semisolid blank |
| CN104014608A (en) * | 2014-06-05 | 2014-09-03 | 徐州工程学院 | Multi-corner composite equal channel angular twist extrusion die |
| CN104014608B (en) * | 2014-06-05 | 2016-01-06 | 徐州工程学院 | Twisting die tool is squeezed at many corners composite equal diameter angle |
| CN105176732A (en) * | 2015-08-31 | 2015-12-23 | 广西运亨酒业有限公司 | Fruity litchi wine |
| CN105080992A (en) * | 2015-09-30 | 2015-11-25 | 广西大学 | Equal channel angular pressing device of ultrasonic vibration male die |
| CN105170681A (en) * | 2015-09-30 | 2015-12-23 | 广西大学 | Equal channel angular extrusion device of ultrasonic vibration female die |
| CN105396888A (en) * | 2015-09-30 | 2016-03-16 | 广西大学 | Equal-diameter angle extrusion device under combined effect of ultrasound waves and back pressure |
| CN106955979A (en) * | 2017-04-19 | 2017-07-18 | 哈尔滨工业大学 | The preparation method of GH4037 high temperature alloy semi solid slurries |
| CN106955979B (en) * | 2017-04-19 | 2019-01-08 | 哈尔滨工业大学 | The preparation method of GH4037 high temperature alloy semi solid slurry |
| CN107931434A (en) * | 2017-11-17 | 2018-04-20 | 哈尔滨工业大学 | A kind of wrought aluminium alloy complex casing part Semi-Solid Thixoforming pressurizing unit and its application method |
| CN107931434B (en) * | 2017-11-17 | 2019-05-31 | 哈尔滨工业大学 | A kind of wrought aluminium alloy complex casing part Semi-Solid Thixoforming pressurizing unit and its application method |
| CN109202031A (en) * | 2018-10-25 | 2019-01-15 | 成都先进金属材料产业技术研究院有限公司 | The preparation method of the automobile-used alloy semi-solid blank of predeformation |
| CN110369541A (en) * | 2019-08-05 | 2019-10-25 | 燕山大学 | Channel pressings mold and its application methods such as a kind of axial-radial alternative expression |
| CN110369541B (en) * | 2019-08-05 | 2020-06-23 | 燕山大学 | Axial and radial alternating equal-channel extrusion die and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1718810A (en) | Method and device for preparing magnesium alloy semi solid state blank | |
| CN101850376B (en) | Method and die for forward extrusion and variable diameter bending extrusion of magnesium alloy semi-solid billets | |
| CN1298452C (en) | Continuously extruding method of magnesium alloy silk material | |
| CN2774673Y (en) | Thermal hydraulic forming mould unit for magnesium alloy plate | |
| CN106140847B (en) | A kind of magnesium alloy compressional deformation processing unit (plant) and processing method | |
| CN101947567B (en) | Processing technique of flat-head hexagon bolt for cold extrusion shaping cart | |
| CN106216952B (en) | A kind of wheel hub forging method | |
| CN101157099A (en) | Processing method of magnesium alloy compressional deformation and mold | |
| CN1799721A (en) | Adjustable mold employing reverse extrusion and draw forming for raw copper tube of mould, reverse extrusion and draw forming method thereof | |
| CN101099978A (en) | Magnesium alloy extrusion deforming processing method | |
| CN2690068Y (en) | Device for preparing super fine grain crystal pipe by equal passage corner extrusion | |
| CN104226711A (en) | Extrusion die with multiple corners and forming method thereof | |
| CN102361115A (en) | Cavity filter and production method thereof | |
| CN109622648B (en) | Asymmetric continuous large-deformation extrusion forming method for magnesium alloy | |
| CN101898203B (en) | Magnesium alloy continuous extrusion die | |
| CN106180235A (en) | A kind of device utilizing access ramp technology to prepare thin grained magnesium alloy | |
| CN2750919Y (en) | S-shaped reciprocating compression die set with equal channel outer corner for preparing superfine crystal material | |
| CN107626760A (en) | A kind of large-scale band lug magnesium alloy component manufacturing process | |
| CN2768921Y (en) | Repeated upsetting extruding die for producing ultra-fine grained material | |
| CN109604365A (en) | A kind of magnesium alloy asymmetric continuous large deformation extrusion process mold | |
| CN105951018B (en) | The method that the channel pressings such as three angles prepare Nano-mter Ti-alloy material | |
| CN206425470U (en) | 31 flute profile moulds are forged in a kind of backward extrusion for being applied to slidably engage set | |
| CN109136703A (en) | A kind of ZK60 magnesium alloy and preparation method thereof | |
| CN108637155B (en) | Bolt production mold, production method and manufactured bolt | |
| CN101869926A (en) | Preparation method and mould for titanium sleeve used for titanium-clad copper bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |