CN206405409U - A kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts - Google Patents
A kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts Download PDFInfo
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- CN206405409U CN206405409U CN201621441619.7U CN201621441619U CN206405409U CN 206405409 U CN206405409 U CN 206405409U CN 201621441619 U CN201621441619 U CN 201621441619U CN 206405409 U CN206405409 U CN 206405409U
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- 238000001125 extrusion Methods 0.000 title claims abstract description 28
- 239000007787 solid Substances 0.000 title claims abstract description 24
- 238000007493 shaping process Methods 0.000 title claims abstract description 20
- 210000004883 areola Anatomy 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000465 moulding Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000009750 centrifugal casting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000010099 solid forming Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Abstract
The utility model discloses a kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts, belongs to semi-solid rheological molding field.Mould described in the utility model includes upper bolster, upper mounted plate, punch-pin, cavity plate, core, sleeve, upper disk, lower disc, bottom plate etc., and punch-pin and release link depression bar are fixed between upper bolster and upper mounted plate in flange form；Cavity plate is connected with bottom plate, and core bottom is fixed between bottom plate and die shoe in flange form, up sequentially passes through lower disc, upper disk, sleeve；Sleeve is fixed between upper disk and lower disc in flange form, inside have core by and gap coordinate；Positioned between upper bolster and die shoe by two guide pillars and two guide pin bushings；Release link is located at cavity plate center, bottom and upper disk contact but is not connected to；Press push rod is connected with hydraulic press.Formable four parts of extrusion process of mould described in the utility model; production efficiency and stock utilization are increased substantially, it is adaptable to produced in enormous quantities, and simple to operate, easy to control, flow is short; mechanization control can be achieved, has certain guidance meaning for economizing on resources with environmental protection.
Description
Technical field
The utility model is related to a kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts, belongs to semi-solid rheological
Molding field.
Background technology
Semi-solid Metals Forming Techniques are a kind of using application is stirred vigorously in metal solidification process or other modes are obtained
Solid-liquid mixed slurry and the method that is shaped.Using the technology, have for economizing on resources with environmental protection certain
Directive significance.Since 1970s, research of the scientific research scholar in terms of semisolid is concentrated mainly on magnesium alloy, aluminium
Some low-melting alloys such as alloy, the semisolid research for high-melting-point alloys such as tin bronzes is relatively fewer.Tin bronze have compared with
High intensity, corrosion resistance and excellent wearability, be widely used in steam boiler and the important valve member of shipping industry, gear and
The equipment such as worm gear, the research for carrying out the alloy semi-solid forming technique is conducive to lifting properties of product.The production of shaft sleeve parts, leads to
Frequently with forming modes such as liquid forming or centrifugal castings., it is necessary to which moulding, cast etc., forming technology is cumbersome during liquid forming, hold
The problems such as easily occurring being mingled with, aoxidize；The uneven microstructure that centrifugal casting is obtained, and easily there are the defects such as shrinkage porosite, shrinkage cavity.Adopt
With extrusion casint, it can be very good to avoid above problems, extrusion process can not only improve the combination property of product, and
Dimensional accuracy is high, and product surface quality is good.At present, copper alloy shaft sleeve part extrusion die tool generally uses adding for a mould one
Work method, can only once be made a manufactured part, and low production efficiency is not suitable for producing in enormous quantities；And copper alloy shaft sleeve zero
Part extrusion die is more using threaded connection in the demoulding and resetting means, and long-term use easily loosens, and causes intensity decreases, from
And reduce die life.
The content of the invention
The purpose of this utility model is to provide a kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts, once
The energy multiple parts of extrusion molding, production efficiency and stock utilization are increased substantially, and are adapted to mass production, the shaping dies
Including upper bolster 1, upper mounted plate 2, punch-pin 3, cavity plate 4, core 6, sleeve 7, upper disk 8, lower disc 9, bottom plate 10, lower mould
Seat 11, press push rod 12, release link depression bar 15, release link 16；The lower surface of upper bolster 1 is connected with fixed plate 2, punch-pin 3 and multiple
Position bar depression bar 15 is fixed between upper bolster 1 and upper mounted plate 2 in flange form；Cavity plate 4 is fixed on bottom plate 10, under
Fixed plate 10 is fixed on above hydraulic press workbench with die shoe 11；One or more areolas are provided with above cavity plate 4, below
For one big cavity, one punch-pin 3 of each areola correspondence；Upper disk 8 is located at lower disc 9 in the big cavity of cavity plate 4, upper circle
To be detachably connected between disk 8 and lower disc 9, contacted between the lower surface of lower disc 9 and the upper surface of bottom plate 10 but not
Connection；One core 6 of each areola correspondence, one sleeve 7 of each correspondence of core 6, the bottom of core 6 is fixed in flange form
Between bottom plate 10 and die shoe 11, lower disc 9, upper disk 8, sleeve 7, areola are sequentially passed through from the bottom up；Sleeve 7
It is fixed in flange form between upper disk 8 and lower disc 9；Core 6 is located at the inside of sleeve 7, and core 6 and sleeve 7 it
Between coordinate for gap, also coordinate between sleeve 7 and the areola of cavity plate for gap, the height of core 6 is higher than the height of sleeve 7；
Punch-pin 3, areola, core 6 and the composition die cavity of sleeve 7；Release link 16 is located at the center of cavity plate 4, and bottom is contacted but not with upper disk 8
Connection, upper end is concordant with the upper surface of cavity plate 4；Press push rod 12 is connected with hydraulic press, release link depression bar 15, release link 16, press
Push rod 12 is point-blank；Positioned between upper bolster 1 and die shoe 11 by guider.
It is preferred that, cavity plate 4 described in the utility model is fixed on bottom plate 10 by bolt 17, and bottom plate 10 is with
Die holder 11 is fixed on above hydraulic press workbench by T-shaped plate；Provided with four areolas above cavity plate 4.
It is preferred that, guider described in the utility model includes two guide pin bushings 13 and two guide pillars 14, the upper end of guide pin bushing 13
Be fixedly connected on the lower surface of upper bolster 1 two are diagonal, and the lower end of guide pillar 14 is fixedly connected on two of the upper surface of die shoe 11
Diagonally, the upper end of guide pillar 14 is socketed in the lower end of guide pin bushing 13, and guide pin bushing 13 coordinates with guide pillar 14 for gap.
It is preferred that, between punch-pin 3 and upper bolster 1 and upper mounted plate 2 described in the utility model, release link depression bar 15 and upper mould
Between seat 1 and upper mounted plate 2, between sleeve 7 and upper disk 8 and lower disc 9, core 6 and bottom plate 10 and die shoe 11 it
Between be gap coordinate.
It is preferred that, the material of die main body described in the utility model is 40Cr, and punch-pin, cavity plate, core, the material of sleeve are
H13 mould steel, and be made by heat treatment process.
It is preferred that, cavity plate described in the utility model（4）Outside be provided with ceramic heat coil.
The shape of solids of punch-pin 3 described in the utility model is adapted with the die cavity of cavity plate 4, small cavity, core, sleeve group together
That interior space shape and the outline of product altogether is adapted.
Mold use process described in the utility model：Before rheo-extrusion, press push rod 12 retreats to hydraulic press lowermost end, this
When, lower disc 9 is located at the lowermost end of cavity plate 4, the lower surface of lower disc 9 and the upper surface of bottom plate 10, passes through ceramic heat line
Circle is preheated to mould, and preheating temperature is 300 ~ 400 DEG C；Then mould type will be poured into by the semi solid slurry materials quantitative of heating and thermal insulation
Chamber, control punch-pin 3 carries out rheo-extrusion shaping to slurry, untill slurry is full of die cavity, and extruding force is 30 ~ 180MP, extruding
Speed be 13 ~ 25mm/s, dwell time be 5 ~ 10s；After the completion of rheo-extrusion, control punch-pin 3 separates with cavity plate 4 to 150 ~
300mm, by controlling the motion upwards of press push rod 12, drives lower disc 9, upper disk 8, release link 16, sleeve 7 and extruding to obtain
Formation of parts 5 move upwardly together, after formation of parts 5 is completely exposed concave die cavity, complete the demoulding；Finally, press push rod
12 retreat to hydraulic press lowermost end, and control the pressed home bar 16 of release link depression bar 15 to move downward, while the upper disk 8 of drive,
Lower disc 9 and sleeve 7 are moved downwardly together, when the lower surface of lower disc 9 and the upper surface of bottom plate 10, complete to reset；It is whole
Individual extrusion process, realizes mechanization control, the difficult problem of the conventional extruded casting demoulding is solved, while realizing batch metaplasia
Production, substantially increases production efficiency.
The beneficial effects of the utility model：
（1）The formable multiple parts of extrusion process of mould described in the utility model, production efficiency and stock utilization
Increase substantially, it is adaptable to produce in enormous quantities, and simple to operate, easy to control, flow is short, and mechanization control can be achieved, it is right
There is certain guidance meaning in economizing on resources with environmental protection.
（2）Many places employ the mode of flange fixation in mould described in the utility model, are not only convenient to mould and use
During installation and dismounting, while improving stability compared to threaded connection, extend die life.
（3）Guide pillar and guide pin bushing with the use of the cooperation essence for improving punch-pin and cavity plate in mould described in the utility model
Degree, reduces other interference, improves formed precision, simultaneously for protection mould, improves product quality significant.
（4）Core in mould described in the utility model, sleeve and release link are used cooperatively, realize part shaping,
The mechanized continuous productive process that the demoulding and mould reset, solves the problem of being stripped difficult in conventional extrusion dies, is cast for extruding
Making small-sized copper alloy shaft sleeve part has certain directive significance.
（5）Slurry selected by the utility model is semi-solid metal slurry, and in extrusion process, required extruding force is smaller, can
Near-net forming is realized, machining, and drip molding dense structure is reduced, the defect such as internal porosity, segregation is few, while and liquid
The problems such as state shaping is compared to the turbulent flow, splash avoided in extrusion process.
（6）The utility model is rational in infrastructure, and mechanization degree is high, substantially increases production efficiency, reduces labour cost, carries
High product quality.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is shaping axle sleeve design of part schematic diagram of the present utility model.
In figure：1- upper bolsters；2- upper mounted plates；3- punch-pin；4- cavity plates；5- formation of parts；6- cores；7- sleeves；On 8-
Disk；9- lower discs；10- bottom plates；11- die shoes；12- press push rods；13- guide pin bushings；14- guide pillars；15- release link pressures
Bar；16- release links；17- bolts.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but guarantor of the present utility model
Shield scope is not limited to the content.
The material of die main body is 40Cr in the utility model embodiment 1 ~ 2, and punch-pin, cavity plate, core, the material of sleeve are
H13 mould steel, and be made by heat treatment process.
Embodiment 1
A kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts described in the present embodiment, including it is upper bolster 1, upper solid
Fixed board 2, punch-pin 3, cavity plate 4, core 6, sleeve 7, upper disk 8, lower disc 9, bottom plate 10, die shoe 11, press push rod 12,
Release link depression bar 15, release link 16；The lower surface of upper bolster 1 is connected with fixed plate 2, and punch-pin 3 and release link depression bar 15 are with flange
Side form is fixed between upper bolster 1 and upper mounted plate 2；Cavity plate 4 is fixed on bottom plate 10, bottom plate 10 and die shoe
11 are fixed on above hydraulic press workbench；2 areolas are provided with above cavity plate 4, are one big cavity, each areola pair below
Answer a punch-pin 3；Upper disk 8 is located at lower disc 9 in the big cavity of cavity plate 4, is detachable between upper disk 8 and lower disc 9
Connection, contacts but is not connected between the lower surface of lower disc 9 and the upper surface of bottom plate 10；One type of each areola correspondence
Core 6, each core 6 one sleeve 7 of correspondence, the bottom of core 6 with flange form be fixed on bottom plate 10 and die shoe 11 it
Between, lower disc 9, upper disk 8, sleeve 7, areola are sequentially passed through from the bottom up；Sleeve 7 is fixed on upper disk in flange form
Between 8 and lower disc 9；Core 6 is located at the inside of sleeve 7, and coordinates between core 6 and sleeve 7 for gap, sleeve 7 and cavity plate
Areola between also coordinate for gap, the height of core 6 is higher than the height of sleeve 7；Punch-pin 3, areola, core 6 and sleeve 7
Constitute die cavity；Release link 16 is located at the center of cavity plate 4, and bottom is contacted but is not connected to upper disk 8, and upper end is put down with the upper surface of cavity plate 4
Together；Press push rod 12 is connected with hydraulic press, and release link depression bar 15, release link 16, press push rod 12 are point-blank；Upper bolster
Positioned between 1 and die shoe 11 by guider, as shown in Figure 1.
Embodiment 2
A kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts described in the present embodiment, including it is upper bolster 1, upper solid
Fixed board 2, punch-pin 3, cavity plate 4, core 6, sleeve 7, upper disk 8, lower disc 9, bottom plate 10, die shoe 11, press push rod 12,
Release link depression bar 15, release link 16；The lower surface of upper bolster 1 is connected with fixed plate 2, and punch-pin 3 and release link depression bar 15 are with flange
Side form is fixed between upper bolster 1 and upper mounted plate 2；Cavity plate 4 is fixed on bottom plate 10 by bolt 17, bottom plate
10 are fixed on above hydraulic press workbench with die shoe 11 by T-shaped plate；4 areolas are provided with above cavity plate 4, are one below
Big cavity, one punch-pin 3 of each areola correspondence, the outside of cavity plate 4 is provided with ceramic heat coil；Upper disk 8 and lower disc 9
In in the big cavity of cavity plate 4, to be detachably connected between upper disk 8 and lower disc 9, the lower surface and bottom plate of lower disc 9
Contact but be not connected between 10 upper surface；One core 6 of each areola correspondence, one sleeve 7 of each correspondence of core 6, type
The bottom of core 6 is fixed between bottom plate 10 and die shoe 11 in flange form, sequentially pass through from the bottom up lower disc 9, on
Disk 8, sleeve 7, areola；Sleeve 7 is fixed between upper disk 8 and lower disc 9 in flange form；Core 6 is located at sleeve 7
Inside, and between core 6 and sleeve 7 for gap coordinate, between sleeve 7 and the areola of cavity plate also for gap coordinate, core 6
Height be higher than sleeve 7 height；Punch-pin 3, areola, core 6 and the composition die cavity of sleeve 7；Release link 16 is located in cavity plate 4
Centre, bottom contacts but is not connected to upper disk 8, and upper end is concordant with the upper surface of cavity plate 4；Press push rod 12 is connected with hydraulic press, multiple
Position bar depression bar 15, release link 16, press push rod 12 are point-blank；Pass through guider between upper bolster 1 and die shoe 11
Positioned, the guider includes two guide pin bushings 13 and two guide pillars 14, and the upper end of guide pin bushing 13 is fixedly connected on upper bolster 1
Two of lower surface are diagonal, and the lower end of guide pillar 14 is fixedly connected on two diagonal, upper ends of guide pillar 14 of the upper surface of die shoe 11
The lower end of guide pin bushing 13 is socketed in,
Guide pin bushing 13 coordinates with guide pillar 14 for gap.
Claims (7)
1. a kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts, it is characterised in that：The shaping dies includes upper
Die holder（1）, upper mounted plate（2）, punch-pin（3）, cavity plate（4）, core（6）, sleeve（7）, upper disk（8）, lower disc（9）, it is lower solid
Fixed board（10）, die shoe（11）, press push rod（12）, release link depression bar（15）, release link（16）；Upper bolster（1）Lower surface
With fixed plate（2）Connection, punch-pin（3）With release link depression bar（15）Upper bolster is fixed in flange form（1）With upper mounted plate
（2）Between；Cavity plate（4）It is fixed on bottom plate（10）On, bottom plate（10）With die shoe（11）It is fixed on hydraulic press work
Above platform；Cavity plate（4）Above be provided with one or more areolas, be one big cavity, each areola correspondingly one below
Punch-pin（3）；Upper disk（8）With lower disc（9）Positioned at cavity plate（4）Big cavity in, upper disk（8）With lower disc（9）Between be
It is detachably connected, lower disc（9）Lower surface and bottom plate（10）Upper surface between contact but be not connected to；Each areola
One core of correspondence（6）, each core（6）One sleeve of correspondence（7）, core（6）Bottom is fixed on lower solid in flange form
Fixed board（10）And die shoe（11）Between, lower disc is sequentially passed through from the bottom up（9）, upper disk（8）, sleeve（7）, areola；
Sleeve（7）Upper disk is fixed in flange form（8）And lower disc（9）Between；Core（6）Positioned at sleeve（7）Inside, and
Core（6）With sleeve（7）Between for gap coordinate, sleeve（7）Also coordinate between the areola of cavity plate for gap, core（6）
Height be higher than sleeve（7）Height；Punch-pin（3）, areola, core（6）And sleeve（7）Constitute die cavity；Release link（16）Position
In cavity plate（4）Center, bottom and upper disk（8）Contact but be not connected to, upper end and cavity plate（4）Upper surface is concordant；Press push rod
（12）It is connected with hydraulic press, release link depression bar（15）, release link（16）, press push rod（12）Point-blank；Upper bolster（1）
With die shoe（11）Between positioned by guider.
2. the shaping dies of semi-solid rheological extrusion casint shaft sleeve parts according to claim 1, it is characterised in that：Cavity plate
（4）Pass through bolt（17）It is fixed on bottom plate（10）On, bottom plate（10）With die shoe（11）Liquid is fixed on by T-shaped plate
Above press bed.
3. the shaping dies of semi-solid rheological extrusion casint shaft sleeve parts according to claim 1, it is characterised in that：Cavity plate
（4）Above provided with four areolas.
4. the shaping dies of semi-solid rheological extrusion casint shaft sleeve parts according to claim 1, it is characterised in that：It is described
Guider includes two guide pin bushings（13）With two guide pillars（14）, guide pin bushing（13）Upper end be fixedly connected on upper bolster（1）Following table
Two of face are diagonal, guide pillar（14）Lower end be fixedly connected on die shoe（11）Two of upper surface are diagonal, guide pillar（14）It is upper
End is socketed in guide pin bushing（13）Lower end, guide pin bushing（13）With guide pillar（14）Coordinate for gap.
5. the shaping dies of the semi-solid rheological extrusion casint shaft sleeve parts according to claim 1 ~ 4 any one, it is special
Levy and be：The punch-pin（3）With upper bolster（1）And upper mounted plate（2）Between, release link depression bar（15）With upper bolster（1）With it is upper
Fixed plate（2）Between, sleeve（7）With upper disk（8）And lower disc（9）Between, core（6）With bottom plate（10）With die shoe
（11）Between be gap coordinate.
6. the shaping dies of the semi-solid rheological extrusion casint shaft sleeve parts according to claim 1 ~ 4 any one, it is special
Levy and be：The material of die main body is 40Cr, punch-pin（3）, cavity plate（4）, core（6）, sleeve（7）Material be H13 mould steel.
7. the shaping dies of the semi-solid rheological extrusion casint shaft sleeve parts according to claim 1 ~ 4 any one, it is special
Levy and be：The cavity plate（4）Outside be provided with ceramic heat coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621441619.7U CN206405409U (en) | 2016-12-27 | 2016-12-27 | A kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621441619.7U CN206405409U (en) | 2016-12-27 | 2016-12-27 | A kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206405409U true CN206405409U (en) | 2017-08-15 |
Family
ID=59552143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621441619.7U Withdrawn - After Issue CN206405409U (en) | 2016-12-27 | 2016-12-27 | A kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206405409U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735065A (en) * | 2016-12-27 | 2017-05-31 | 昆明理工大学 | A kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts |
| CN109175291A (en) * | 2018-09-13 | 2019-01-11 | 河南科技大学 | A kind of half melt minute-pressure molding preparation method of middle-size and small-size zinc-containing alloy axle sleeve |
-
2016
- 2016-12-27 CN CN201621441619.7U patent/CN206405409U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735065A (en) * | 2016-12-27 | 2017-05-31 | 昆明理工大学 | A kind of shaping dies of semi-solid rheological extrusion casint shaft sleeve parts |
| CN109175291A (en) * | 2018-09-13 | 2019-01-11 | 河南科技大学 | A kind of half melt minute-pressure molding preparation method of middle-size and small-size zinc-containing alloy axle sleeve |
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