CN105665712B - A kind of two-way warm extrusion mould - Google Patents
A kind of two-way warm extrusion mould Download PDFInfo
- Publication number
- CN105665712B CN105665712B CN201610218264.3A CN201610218264A CN105665712B CN 105665712 B CN105665712 B CN 105665712B CN 201610218264 A CN201610218264 A CN 201610218264A CN 105665712 B CN105665712 B CN 105665712B
- Authority
- CN
- China
- Prior art keywords
- die
- die sleeve
- cavity plate
- die shoe
- plate
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
A kind of two-way warm extrusion mould, it is related to a kind of extrusion molding dies.The present invention influences service precision to solve the problems, such as that the product of existing metal powder metallurgy material shaping has density and intensity deficiency.The cushion block of the present invention is arranged in die shoe groove, die shoe is connected with cushion block, strengthen die sleeve to be arranged on die shoe, restoring board is installed on the spacing shoulder for strengthening die sleeve, strengthen being respectively equipped with multiple release links and Duo Gen guide pillars between die sleeve and die shoe, multiple guide pin bushings, which are inserted into, to be strengthened on die sleeve, cavity plate, which is arranged on, to be strengthened in die sleeve, and cavity plate is integral by being interference fitted hot charging technique assembling with strengthening die sleeve, lower core is arranged in cavity plate, upper core is installed in the shoulder hole of clamping plate, cope plate, backing plate and clamping plate are from top to bottom arranged successively, upper core is located at the surface of lower core, metal powder metallurgy is provided between lower core and cavity plate inner chamber.The present invention is used for jet pipe extrusion forming.
Description
Technical field
The present invention relates to a kind of extrusion molding dies, and in particular to a kind of two-way warm extrusion mould.
Background technology
Metal powder metallurgy " jet pipe " part, applied to engine chamber, the part starts in engine operating instant
Fuel gas temperature in machine combustion chamber drastically raises, and can produce 460MPa thrust.When substantial amounts of thermal-flame is sprayed by engine
When pipe larynx neck sprays, thermal-flame can produce very big scaling loss to jet pipe larynx neck, have a strong impact on service precision.If using common
Metal powder metallurgy material forming process method, for manufactured part there is a number of hole, intensity is not high, meets not
The performance indications requirement of engine chamber " jet pipe " part.So using metal powder metallurgy preforming process technology, then
" jet pipe " part of the METAL HEATING PROCESS that is used extrusion process technical method shaping, preferably resolve engine chamber igniting
Caused high temperature, high pressure flame ensure that the precision of ammunition flight path, improve engine to jet pipe larynx neck burning problems afterwards
The performance indications of combustion chamber jet pipe.
Powder metallurgy hot extrusion forming technology, it is after adding part to be heated to proper temperature metal powder metallurgy blank, then makes
Metal powder metallurgy blank is extruded by mould with forcing press, blank is produced plastic deformation, it is required so as to obtain
Part shape, size and performance.Using metal powder metallurgy hot extrusion forming technology, can improve powdered metal parts density,
The utilization rate of performance and powdered metallurgical material.But there is density and intensity not in the product of existing metal powder metallurgy material shaping
The problem of sufficient, influence service precision.
The content of the invention
The invention aims to the product for solving existing metal powder metallurgy material shaping to have density and intensity
The problem of insufficient, influence service precision.And then provide a kind of two-way warm extrusion mould.
The technical scheme is that：A kind of two-way warm extrusion mould include die shoe, cushion block, lower core, on
Core, backing plate, cope plate, clamping plate, cavity plate, restoring board, strengthen die sleeve, multiple back-moving springs, multiple release links, multiple packing rings,
Multiple nuts, multiple cope plate fixing screws, multiple die sleeve fixing screws, multiple guide pin bushings, multiple die shoe connecting bolts and more
Root guide pillar.
The upper surface middle part position of die shoe opens up die shoe groove, and cushion block is arranged in die shoe groove, die shoe with
Connected between cushion block by multiple die shoe connecting bolts, strengthen die sleeve and be arranged on die shoe, and strengthened die sleeve and be sleeved on pad
On the lateral wall of block, the lateral wall top for strengthening die sleeve opens up spacing shoulder, and restoring board is installed on the spacing shoulder for strengthening die sleeve
Above and by multiple die sleeve fixing screws with strengthening die sleeve it is connected, strengthens being respectively equipped with multiple release links between die sleeve and die shoe
With more guide pillars, the upper end of each release link passes through restoring board, one is respectively equipped with each release link of restoring board upper end
Individual packing ring and a nut, the lower end of each release link are connected with die shoe, and every between die sleeve and die shoe positioned at strengthening
A back-moving spring is cased with individual release link, multiple guide pin bushings are inserted on restoring board from the bottom to top, and the top of every guide pillar can
It is slidably mounted on restoring board, the bottom of every guide pillar is connected with die shoe, and cavity plate, which is arranged on, to be strengthened in die sleeve, and cavity plate is with adding
Strong die sleeve is integral by being interference fitted hot charging technique assembling, and lower core is arranged in cavity plate.
The madial wall of clamping plate is provided with shoulder hole, and upper core is from top to bottom installed in the shoulder hole of clamping plate, cope plate, pad
Plate and clamping plate are from top to bottom arranged and connected by multiple cope plate fixing screws successively, upper core be located at lower core just on
Side, is provided with metal powder metallurgy powder between lower core and cavity plate inner chamber.
The present invention has the following effects that compared with prior art：
The present invention employs two-way hot extrusion shaping mold, had when solving the problems, such as jet pipe density and intensity deficiency
The density and intensity that ensure that metal powder metallurgy material of effect, improve service precision, and mould structure is simple, it is easy to accomplish.
Brief description of the drawings
Fig. 1 is the two-way hot extrusion composite molding die structural representation of jet pipe：1 die shoe；2 back-moving springs；3 release links；
4 cushion blocks；5 packing rings；6 nuts；7 times cores；Core on 8；9 backing plates；10 screws；11 cope plates；12 clamping plates；13 screws；14 is recessed
Mould；15 guide pin bushings；16 restoring boards；17 strengthen die sleeve；18 bolts；19 guide pillars.Fig. 2 is jet pipe hot extrusion part drawing.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1 to Fig. 2, present embodiment includes die shoe 1, cushion block
4th, lower core 7, upper core 8, backing plate 9, cope plate 11, clamping plate 12, cavity plate 14, restoring board 16, reinforcement die sleeve 17, multiple reset bullets
Spring 2, multiple release links 3, multiple packing rings 5, multiple nuts 6, multiple cope plate fixing screws 10, multiple die sleeve fixing screws 13,
Multiple guide pin bushings 15, multiple die shoe connecting bolts 18 and Duo Gen guide pillars 19.
The upper surface middle part position of die shoe 1 opens up die shoe groove, and cushion block 4 is arranged in die shoe groove, die shoe 1
It is connected between cushion block 4 by multiple die shoe connecting bolts 18, strengthens die sleeve 17 and be arranged on die shoe 1, and strengthen die sleeve
17 are sleeved on the lateral wall of cushion block 4, and the lateral wall top for strengthening die sleeve 17 opens up spacing shoulder, and restoring board 16, which is installed on, to be added
It is connected on the spacing shoulder of strong die sleeve 17 and by multiple die sleeve fixing screws 13 with strengthening die sleeve 17, strengthens die sleeve 17 and lower mould
Multiple release links 3 and Duo Gen guide pillars 19 are respectively equipped between seat 1, the upper end of each release link 3 passes through restoring board 16, positioned at reset
A packing ring 5 and a nut 6, the lower end of each release link 3 and die shoe are respectively equipped with each release link 3 of the upper end of plate 16
1 connection, and a back-moving spring 2 is cased with each release link 3 strengthened between die sleeve 17 and die shoe 1, it is multiple to lead
Set 15 is inserted on restoring board 16 from the bottom to top, and the upper slidable of every guide pillar 19 is arranged on restoring board 16, every guide pillar
19 bottom is connected with die shoe 1, and cavity plate 14, which is arranged on, to be strengthened in die sleeve 17, and cavity plate 14 is matched somebody with somebody with strengthening die sleeve 17 by interference
Close hot charging technique assembling integrally, lower core 7 is arranged in cavity plate 14.
The madial wall of clamping plate 12 is provided with shoulder hole, and upper core 8 is from top to bottom installed in the shoulder hole of clamping plate 12, upper mould
Plate 11, backing plate 9 and clamping plate 12 are from top to bottom arranged and connected by multiple cope plate fixing screws 10 successively, and upper core 8 is located at
The surface of lower core 7, metal powder metallurgy powder is provided between lower core 7 and cavity plate 14 inner chamber.
Embodiment two：Illustrate present embodiment with reference to Fig. 1, the upper core 8 of present embodiment and cavity plate 14 and under
The unilateral fit clearance of core 7 is 0.02~0.03mm, when lower core 7 is attached in cavity plate 14, it is 0.02 that fit clearance is unilateral~
0.03mm, and by the connection of back-moving spring 2 and restoring board 16, cavity plate 14 is moved up and down with strengthening die sleeve 17.So set
Put, it is simple in construction, it is easy to implement cavity plate 14 and is moved up and down with strengthening die sleeve 17.Other compositions and annexation and specific implementation
Mode one is identical.
Embodiment three：Illustrate present embodiment with reference to Fig. 1, adopted between the lower core 7 and cushion block 4 of present embodiment
With gap coordinate ensure gap it is unilateral be 0.01~0.025mm.It is arranged such, is easy to ensure extruding precision.Other compositions and company
It is identical with embodiment one or two to connect relation.
Embodiment four：Illustrate present embodiment with reference to Fig. 1, the cavity plate 14 of present embodiment is that annulus column is recessed
Mould.It is arranged such, is easy to squeeze out lateral wall as circular jet pipe.Other compositions and annexation and embodiment one,
Two or three is identical.
Embodiment five：Illustrate present embodiment with reference to Fig. 1, the internal diameter and external diameter of the cavity plate 14 of present embodiment are same
Axle.It is arranged such, is easy to ensure extruding precision.Other compositions and annexation and embodiment one, two, three or four phases
Together.
Embodiment six：Illustrate present embodiment with reference to Fig. 1, the quantity of multiple guide pin bushings 15 of present embodiment is 2
Individual, two guide pin bushings 15 are symmetrical arranged relative to the central axis of restoring board 16, and are attached using interference fit.So set
Put, ensure extruding precision.Other compositions and annexation are identical with embodiment one, two, three, four or five.
Embodiment seven：Illustrating present embodiment with reference to Fig. 1, the quantity of the guide pillar 19 of present embodiment is 2, under
With being provided with two lower guide pillar holes at two opposite positions of guide pillar 19 on die holder 1, the lower end of guide pillar 19 under die shoe 1 with leading
Post holes is interference fitted.It is arranged such, is provided for guide pillar and be accurately positioned and connect.Other compositions and annexation and specific embodiment party
Formula one, two, three, four, five or six are identical.
The upper die component of present embodiment is arranged on clamping plate by upper core, and centre is provided with backing plate, and by multiple M16
Template fixing screws 10 are fixed on cope plate, and aforementioned four part can be removable by multiple M16 cope plates fixing screws 10
Unload connection (being detachably connected in present embodiment using screw).Lower mold assemblies by cavity plate, strengthen die sleeve, restoring board, pass through M12
Screw is fixed, and cushion block is attached with die shoe by multiple die shoe connecting bolts 18.Using the present invention mould, into
Jet pipe part (see Fig. 2) external diameter after type is φ 36mm, external diameter is φ 30mm, internal diameter is φ 9mm and 27 ° of cone angles of band, high 46mm.
The hot-extrusion mold negative molding material of present embodiment is Gr12MV, upper core and lower core material are Gr6WV.
The negative molding material quenching hardness of present embodiment is HRC60~62, and upper core and lower core material quenching hardness are
HRC54~56.
The connection of the back-moving spring and restoring board of present embodiment, cavity plate can be made to be moved up and down with strengthening die sleeve.
Present embodiment is by cavity plate with after reinforcement die sleeve assembling, being assembled with restoring board, and consolidated by M12 screws
It is fixed, by the elastic working principle of back-moving spring, cavity plate is moved up and down with strengthening die sleeve.
It is 0.01~0.025mm that the lower core of present embodiment is unilateral with cushion block fit clearance, and internal diameter, the external diameter of cavity plate are same
Axle degree is 0.01mm.
Present embodiment by the processing dimension tolerance design of lower core and cushion block part into unilateral gap be 0.01~
0.025mm fit tolerance size, to ensure that lower core being capable of proper motion after being assembled with cushion block.
The cavity plate of present embodiment uses hot charging technique with strengthening die sleeve using interference fit.
The cavity plate of present embodiment and the fit tolerance for strengthening using between die sleeve are interference fits, and part adds if do not used
Thermal technology's process can not assemble integral.
The metal powder metallurgy material of present embodiment needs pre-molding blank.
The hot extrusion blank of present embodiment is that metal powder metallurgy blank forming die is arranged on 100t hydraulic presses
Afterwards, metal powder metallurgy powder is placed into compacting in die cavity by funnel to form.
Operation principle：The metal powder metallurgy jet pipe part being molded as needed, mould are provided with upper core, cavity plate, lower core
Mould and other auxiliary components, and they are assembled into a complete hot-extrusion mold.The mould installion is in 160t hydraulic presses
On, and die shoe is fixed on the work top of hydraulic press, upper die component is fixed on the upper slide of hydraulic press (with setting
Standby startup, upper die component move up and down together with upper slide, and it is impulse stroke to move downward, and motion is idle running upwards), according to
Mould closure height determines stroke (being defined by the complete joint product pattern of workpiece).Before part heat extrusion forming, first by metal dust
Metallurgical material, it is pressed into jet pipe blank in advance by mould, then by being carried out to blank after being heated to certain temperature, is placed into cavity plate
Die cavity in, click switch, move downward the upper slide of equipment.First, the upper core of upper die component it is descending, with lower module
Part is pressed against closure, and (during upper die component continues traveling downwardly, the sub-assembly first with cavity plate and reinforcement die sleeve presses, Ran Houshang
The sub-assembly of membrane module and cavity plate and reinforcement die sleeve continues traveling downwardly the relative upward movement for producing lower core and cavity plate, makes jet pipe zero
Part is improved the uniformity of the global density of jet pipe part by two-way axle extruding force).Open the up playback of hydraulic press upper slide
Afterwards, the up lower core for promoting lower mold assemblies of lower oil cylinder for starting hydraulic press ejects jet pipe part outside cavity plate, completes extruding pressure
Type works.
Claims (5)
- A kind of 1. two-way warm extrusion mould, it is characterised in that：It include die shoe (1), cushion block (4), lower core (7), Upper core (8), backing plate (9), cope plate (11), clamping plate (12), cavity plate (14), restoring board (16), reinforcement die sleeve (17), Duo Gefu Position spring (2), multiple release links (3), multiple packing rings (5), multiple nuts (6), multiple cope plate fixing screws (10), Duo Gemo Fixing screws (13), multiple guide pin bushings (15), multiple die shoe connecting bolts (18) and more guide pillars (19) are covered,The upper surface middle part position of die shoe (1) opens up die shoe groove, and cushion block (4) is arranged in die shoe groove, die shoe (1) it is connected between cushion block (4) by multiple die shoe connecting bolts (18), strengthens die sleeve (17) and be arranged on die shoe (1), And strengthen die sleeve (17) and be sleeved on the lateral wall of cushion block (4), the lateral wall top for strengthening die sleeve (17) opens up spacing shoulder, multiple Position plate (16) is installed on the spacing shoulder for strengthening die sleeve (17) and by multiple die sleeve fixing screws (13) with strengthening die sleeve (17) connect, strengthen being respectively equipped with multiple release links (3) and more guide pillars (19) between die sleeve (17) and die shoe (1), each The upper end of release link (3) passes through restoring board (16), and one is respectively equipped with each release link (3) of restoring board (16) upper end Packing ring (5) and a nut (6), the lower end of each release link (3) are connected with die shoe (1), and positioned at strengthen die sleeve (17) and A back-moving spring (2) is cased with each release link (3) between die shoe (1), multiple guide pin bushings (15) insert from the bottom to top On restoring board (16), the upper slidable of every guide pillar (19) is arranged on restoring board (16), the bottom of every guide pillar (19) It is connected with die shoe (1), cavity plate (14), which is arranged on, to be strengthened in die sleeve (17), and cavity plate (14) passes through interference with strengthening die sleeve (17) Coordinate hot charging technique assembling integrally, lower core (7) is arranged in cavity plate (14)；The madial wall of clamping plate (12) is provided with shoulder hole, and upper core (8) is from top to bottom installed in the shoulder hole of clamping plate (12), on Template (11), backing plate (9) and clamping plate (12) are from top to bottom arranged and connected by multiple cope plate fixing screws (10) successively, on Core (8) is located at the surface of lower core (7), and metal powder metallurgy powder is provided between lower core (7) and cavity plate (14) inner chamber；The unilateral fit clearance of upper core (8) and cavity plate (14) and lower core (7) is 0.02~0.03mm, and lower core (7) is attached to When cavity plate (14) is interior, unilateral fit clearance is 0.02~0.03mm, and by the connection of back-moving spring (2) and restoring board (16), Cavity plate (14) is set to be moved up and down with strengthening die sleeve (17)；Use gap to coordinate between lower core (7) and cushion block (4) and ensure that gap is unilateral for 0.01~0.025mm.
- A kind of 2. two-way warm extrusion mould according to claim 1, it is characterised in that：Cavity plate (14) is annulus post Shape cavity plate.
- A kind of 3. two-way warm extrusion mould according to claim 2, it is characterised in that：The internal diameter of cavity plate (14) and External diameter is coaxial.
- A kind of 4. two-way warm extrusion mould according to claim 3, it is characterised in that：The number of multiple guide pin bushings (15) Measure as 2, two guide pin bushings (15) are symmetrical arranged relative to the central axis of restoring board (16), and are connected using interference fit Connect.
- A kind of 5. two-way warm extrusion mould according to claim 4, it is characterised in that：The quantity of guide pillar (19) is 2, with being provided with two lower guide pillar holes at two guide pillar (19) opposite positions on die shoe (1), the lower end of guide pillar (19) is with The lower guide pillar hole interference fit of die holder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218264.3A CN105665712B (en) | 2016-04-11 | 2016-04-11 | A kind of two-way warm extrusion mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218264.3A CN105665712B (en) | 2016-04-11 | 2016-04-11 | A kind of two-way warm extrusion mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105665712A CN105665712A (en) | 2016-06-15 |
| CN105665712B true CN105665712B (en) | 2018-02-13 |
Family
ID=56308765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610218264.3A Active CN105665712B (en) | 2016-04-11 | 2016-04-11 | A kind of two-way warm extrusion mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105665712B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109261969A (en) * | 2018-09-28 | 2019-01-25 | 贵州新安航空机械有限责任公司 | Powder metallurgy product hot pressing mode structure |
| CN110090873B (en) * | 2019-05-24 | 2020-06-02 | 合肥百恒设备模具有限公司 | Extrusion forming device for aluminum part stamping parts |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87103600A (en) * | 1987-05-19 | 1988-12-14 | 机械工业委员会北京机电研究所 | The vertical mould subtend die forging device that divides |
| EP0426312A2 (en) * | 1989-10-30 | 1991-05-08 | General Motors Corporation | Cold-forming dies and cold-forming process |
| CN2764512Y (en) * | 2004-12-22 | 2006-03-15 | 郑州机械研究所 | Extrusion mold for inside and outside toothed member |
| CN1803340A (en) * | 2006-01-23 | 2006-07-19 | 北京交通大学 | Preparation method of two-directional chapiter blank for coal mine supporting and protection, and its mould |
| CN102528031A (en) * | 2012-01-16 | 2012-07-04 | 浙江大学 | Semisolid metal powder forming device for double-action pressing |
| CN205414409U (en) * | 2016-04-11 | 2016-08-03 | 哈尔滨建成集团有限公司 | Two -way temperature hot extrusion formation mould |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070269334A1 (en) * | 2006-01-17 | 2007-11-22 | Roger Lawcock | Multiple part compaction |
-
2016
- 2016-04-11 CN CN201610218264.3A patent/CN105665712B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87103600A (en) * | 1987-05-19 | 1988-12-14 | 机械工业委员会北京机电研究所 | The vertical mould subtend die forging device that divides |
| EP0426312A2 (en) * | 1989-10-30 | 1991-05-08 | General Motors Corporation | Cold-forming dies and cold-forming process |
| CN2764512Y (en) * | 2004-12-22 | 2006-03-15 | 郑州机械研究所 | Extrusion mold for inside and outside toothed member |
| CN1803340A (en) * | 2006-01-23 | 2006-07-19 | 北京交通大学 | Preparation method of two-directional chapiter blank for coal mine supporting and protection, and its mould |
| CN102528031A (en) * | 2012-01-16 | 2012-07-04 | 浙江大学 | Semisolid metal powder forming device for double-action pressing |
| CN205414409U (en) * | 2016-04-11 | 2016-08-03 | 哈尔滨建成集团有限公司 | Two -way temperature hot extrusion formation mould |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105665712A (en) | 2016-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102699094B (en) | Die used in extrusion moulding of high-precision complex copper alloy thrust bearing seat | |
| CN104028952B (en) | High-pressure common rail system oil injecting nozzle block forming technology | |
| CN104858254B (en) | 35CrMo steel thick-walled tube vertical backward extrusion method, and extrusion die thereof | |
| CN105665712B (en) | A kind of two-way warm extrusion mould | |
| US2787828A (en) | Method for producing finished articles directly from material blanks | |
| CN201659244U (en) | Die forging mold | |
| CN205414409U (en) | Two -way temperature hot extrusion formation mould | |
| CN203140671U (en) | Blocked shaping formwork for oil nozzle blank of high-pressure common rail system | |
| CN205614005U (en) | Duplex position forward finishing mould | |
| CN106345957A (en) | Semi-solid-state die forging mold device | |
| CN101869944A (en) | Forming die with shape-variable male die applying radial thrust by solid particle medium | |
| CN105880609B (en) | The moulding technique and molding die of a kind of engine jet pipe | |
| CN217018395U (en) | A pressure device for engineering machine tool hydro-cylinder blank thermoforming | |
| CN110170609A (en) | Band flange cage housing precision plastic forming process and mold | |
| CN206464421U (en) | A kind of new flange perforating die | |
| CN202343841U (en) | Precision forging and forming die for blank of differential case | |
| CN205522191U (en) | Moulding compound internal thread end cover compression mold | |
| CN101780513B (en) | One-step forming forging mould of elongated forging with upsetting ratio bigger than 3 | |
| CN204182915U (en) | Powder metallurgical gear mould | |
| CN204488030U (en) | A kind of injection moulding blowing double mould | |
| CN203791600U (en) | Automotive accessory die-casting die | |
| CN103418684B (en) | A kind of gas-turbine combustion chamber blender punch forming mould | |
| CN108188325B (en) | Cold heading forming folding-preventing die for thin-wall workpiece | |
| CN206464436U (en) | A kind of new flange mold | |
| CN107471558A (en) | A kind of spherical product injection forming mold and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |