CN109622918A - A kind of injecting molding die and forming method of zinc-containing alloy pipe - Google Patents
A kind of injecting molding die and forming method of zinc-containing alloy pipe Download PDFInfo
- Publication number
- CN109622918A CN109622918A CN201811592026.4A CN201811592026A CN109622918A CN 109622918 A CN109622918 A CN 109622918A CN 201811592026 A CN201811592026 A CN 201811592026A CN 109622918 A CN109622918 A CN 109622918A
- Authority
- CN
- China
- Prior art keywords
- injection tube
- zinc
- containing alloy
- alloy pipe
- molding die
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention provides the injecting molding die and forming method of a kind of zinc-containing alloy pipe, the molding die includes intermediate casting ladle, fixed form, type core, core print for mount type core, crystallizer, mobile towing plate and the internal injection tube for hollow structure, wherein one end of the injection tube is equipped with the injection nozzle that is connected with the inner cavity of injection tube, the other end inside thread of injection tube is connected with screw rod, intermediate casting ladle is mounted on the top of injection tube and the liquid outlet of intermediate casting ladle is connected with the inner cavity of injection tube, injection nozzle is in the form of a column and the outer lateral edge of injection nozzle is successively arranged with the fixed form and type core far from the direction of injection tube, the inside of type core is provided with extrusion chamber in the exit of injection nozzle, extrusion chamber is connected to by several die orifices with type chamber, the present invention can solve the conventional casting methods generallyd use at present production zinc-containing alloy pipe When there is the problems such as shrinkage cavity and porosity and uneven components, while improving the mechanical property and service performance of zinc-containing alloy pipe.
Description
Technical field
The invention belongs to metal forming mold technical fields, and in particular to a kind of injecting molding die of zinc-containing alloy pipe and
Forming method.
Background technique
High aluminium zinc alloy has been successfully applied to prepare alloy with its excellent anti-attrition wearability and higher mechanical performance
The anti-attritions wear resistant products such as pipe, axle sleeve, bearing shell.But since the inherent characteristic of high aluminium zinc alloy is high using Regular casting methods production
The defects of component segregation, shrinkage cavity are easy to appear when alumin(i)um zinc alloy pipe, so that high aluminium zinc alloy pipe be made to be easy to during military service
The problems such as existing stress collection neutralizes crackle, and then greatly affected the mechanical property and service life of high aluminium zinc alloy pipe.
Summary of the invention
The object of the present invention is to provide the injecting molding dies and forming method of a kind of zinc-containing alloy pipe, general at present to solve
There is the problems such as shrinkage cavity and porosity and uneven components when producing zinc-containing alloy pipe all over the conventional casting methods used, improves simultaneously
The mechanical property and service performance of zinc-containing alloy pipe.
In order to achieve the above object, the technical scheme adopted by the invention is that: a kind of injection mold of zinc-containing alloy pipe
Tool, including intermediate casting ladle, fixed form, type core, the core print for mount type core, crystallization for accepting liquid zinc alloy
Device, mobile towing plate and inside are the injection tube of hollow structure, are provided at the liquid outlet of intermediate casting ladle for controlling liquid
The slide gate nozzle of kirsite flow velocity and flow, wherein one end of the injection tube are equipped with the injection that is connected with the inner cavity of injection tube
Mouth, the other end inside thread of injection tube are connected with screw rod, and intermediate casting ladle is mounted on going out for the top of injection tube and intermediate casting ladle
Liquid mouth is connected with the inner cavity of injection tube, and injection nozzle is in the form of a column and the outer lateral edge of injection nozzle is successively arranged far from the direction of injection tube
There are the fixed form and type core, the inside of type core is provided with extrusion chamber in the exit of injection nozzle, and the outer lateral edge of type core is remote
Direction from fixed form is successively arranged with the core print and crystallizer, and side setting of the crystallizer far from core print is
The mobile towing plate stated, type core, crystallizer, core print and mobile towing plate are surrounded jointly for the molding type of liquid zinc alloy
Chamber, the inside of type core are also provided with several die orifices being connected with extrusion chamber, and extrusion chamber is connected by several die orifices and type chamber
It is logical.
Further, the resistance preheater for being heated to injection tube is provided on the outside of the injection tube.
Further, the mobile towing plate offers dovetail groove in one end close to crystallizer.
Further, the mobile towing plate is additionally provided with the seal groove being connected with dovetail groove on the inside of dovetail groove,
The one end of type core far from fixed form matches with seal groove.
Further, the mobile towing plate is connected far from one end of crystallizer with hydraulic press.
Further, the core print offers mounting groove in one end close to fixed form, and the type core is close to solid
One end of solid plate is wholely set the deck to match with mounting groove.
Further, the core print is connected with fixed form by bolt.
Further, the extrusion chamber is tapered, and the central axis of extrusion chamber is overlapped and infuses with the central axis of injection nozzle
Nozzle penetrates extrusion chamber from the apex of the pyramidal structure.
A kind of injecting molding die using zinc-containing alloy pipe prepares the forming method of zinc-containing alloy pipe, including following step
It is rapid:
Step 1: being heated to 200-220 DEG C for injection tube and screw rod by the resistance preheater that is arranged on the outside of injection tube, and
50-60 minutes are kept the temperature at 200-220 DEG C；
Step 2: pouring into intermediate casting ladle when liquid zinc alloy is heated to 530-550 DEG C, and setting is opened at 510-520 DEG C
Slide gate nozzle below intermediate casting ladle makes liquid zinc alloy enter the inner cavity of injection tube；
Step 3: rotation screw rod makes to inject the liquid zinc alloy in tube inner chamber and successively enters type chamber simultaneously after injection nozzle and extrusion chamber
In the intracavitary coagulation forming of type.
Further, in the step three, liquid zinc alloy successively after injection nozzle and extrusion chamber enter type chamber, passes through
The intracavitary temperature of type is maintained at 180-240 DEG C by crystallizer.
Compared with prior art, the beneficial effects of the present invention are: the configuration of the present invention is simple, easy to use, machine easy to accomplish
Toolization control, integration ofTechnology degree is high, it can be achieved that continuous production reduces production cost, and can be effective to improve production efficiency
Guarantee product quality.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Marked in the figure: 1, intermediate casting ladle, 2, fixed form, 3, core print, 4, type core, 5, crystallizer, 6, mobile towing plate, 7, type
Chamber, 8, injection nozzle, 9, resistance preheater, 10, injection tube, 11, screw rod, 12, extrusion chamber, 13, die orifice, 14, dovetail groove, 15, close
Sealing groove, 16, hydraulic press, 17, mounting groove, 18, deck.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached in the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments, based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, a kind of injecting molding die of zinc-containing alloy pipe, including for accepting liquid zinc alloy
Intermediate casting ladle 1, fixed form 2, type core 4, the core print 3 for mount type core 4, crystallizer 5, mobile towing plate 6 and inside
For the injection tube 10 of hollow structure, it is provided at the liquid outlet of intermediate casting ladle 1 for controlling liquid zinc alloy flow velocity and flow
Slide gate nozzle, wherein one end of the injection tube 10 are equipped with the injection nozzle 8 that is connected with the inner cavity of injection tube 10, injection tube 10
Other end inside thread is connected with screw rod 11, intermediate casting ladle 1 be mounted on the top of injection tube 10 and the liquid outlet of intermediate casting ladle 1 with
The inner cavity of injection tube 10 is connected, and injection nozzle 8 is in the form of a column and the outer lateral edge of injection nozzle 8 is successively arranged far from the direction of injection tube 10
Have a fixed form 2 and type core 4, the inside of type core 4 is provided with extrusion chamber 12 in the exit of injection nozzle 8, type core 4 it is outer
Direction of the lateral edge far from fixed form 2 is successively arranged with the core print 3 and crystallizer 5, and crystallizer 5 is far from core print 3
Side is provided with the mobile towing plate 6, and type core 4, crystallizer 5, core print 3 and mobile towing plate 6 are surrounded jointly and be used for
The molding type chamber 7 of liquid zinc alloy, the inside of type core 4 are also provided with several die orifices 13 being connected with extrusion chamber 12, squeeze
Chamber 12 is connected to by several die orifices 13 with type chamber 7, is provided with water-cooling system in crystallizer 5, is conducive to the solidification of zinc-containing alloy pipe,
To obtain ingredient uniformly, the zinc-containing alloy pipe of dense structure.
This programme is advanced optimized, the outside of the injection tube 10 is provided with the resistance for being heated to injection tube 10
Preheater 9, in mold before use, can be gone out to avoid zinc-containing alloy pipe due to Quench by 9 hot injection cylinder of resistance preheater
Existing defect.
This programme is advanced optimized, liquid zinc alloy (i.e. zinc-containing alloy pipe) water out of type chamber 7 for the ease of it will form after
It translates out, the mobile towing plate 6 offers dovetail groove 14 in one end close to crystallizer 5.
This programme is advanced optimized, the mobile towing plate 6 is additionally provided with and 14 phase of dovetail groove in the inside of dovetail groove 14
The seal groove 15 of connection, the one end of type core 4 far from fixed form 2 match with seal groove 15, and type core 4 is far from fixed form 2
One end is embedded in seal groove 15, so that type chamber 7 reaches preferable leakproofness, preventing liquid zinc alloy after molding, (i.e. zinc-base is closed
Gold pipe) deformation.
This programme is advanced optimized, the described one end of mobile towing plate 6 far from crystallizer 5 is connected with hydraulic press 16, hydraulic
Machine 16 controls mobile towing plate 6 and moves left and right, and in order to achieve the best use effect, the lower section of the mobile towing plate 6 is arranged
There is ground way to guarantee the horizontal movement of mobile towing plate 6, to improve the formed precision of zinc-containing alloy pipe, and can be reduced
Die wear.
This programme is advanced optimized, the core print 3 offers mounting groove 17 in one end close to fixed form 2, described
Type core 4 is wholely set the deck 18 to match with mounting groove 17 in one end close to fixed form 2.
This programme is advanced optimized, the core print 3 is connected with fixed form 2 by bolt.
This programme is advanced optimized, the extrusion chamber 12 is tapered, the central axis of extrusion chamber 12 and the center of injection nozzle 8
Axis is overlapped and injection nozzle 8 from the apex of the pyramidal structure penetrates extrusion chamber 12.
The forming method of zinc-containing alloy pipe is prepared using the injecting molding die of zinc-containing alloy pipe, comprising the following steps:
Step 1: injection tube 10 and screw rod 11 are heated to by 200-220 by the resistance preheater 9 being arranged on the outside of injection tube 10
DEG C, and 50-60 minutes are kept the temperature at 200-220 DEG C；
Step 2: pouring into intermediate casting ladle 1 when liquid zinc alloy is heated to 530-550 DEG C, and setting is opened at 510-520 DEG C
Slide gate nozzle below intermediate casting ladle 1, makes liquid zinc alloy enter the inner cavity of injection tube 10；
Step 3: rotation screw rod 11 keeps the liquid zinc alloy in 10 inner cavity of injection tube successively laggard through injection nozzle 8 and extrusion chamber 12
Enter type chamber 7 and the coagulation forming in type chamber 7.
Advanced optimize this programme, in the step three, liquid zinc alloy successively enters through injection nozzle 8 and extrusion chamber 12
After type chamber 7, the temperature in type chamber 7 is maintained at 180-240 DEG C by crystallizer 5.
The present invention is preferably applied in the preparation of ZA27 zinc-containing alloy pipe, and liquid zinc alloy can be sent out in the inner cavity of injection tube 10
Raw solidification and crystallization, then consumingly shearing and stir using screw rod 11 makes the dendrite fragmentation being precipitated first form equiax crystal, obtains
Semisolid kirsite slurry, while semisolid kirsite slurry is entered into type chamber through extrusion chamber 12 under the action of 11 thrust of screw rod
7, dense structure, the high aluminium zinc alloy pipe that ingredient is uniform, service performance is excellent are obtained after crystallized device 5 is cooling.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of injecting molding die of zinc-containing alloy pipe, including the intermediate casting ladle (1) for accepting liquid zinc alloy, stent
Plate (2), type core (4) for the core print (3) of mount type core (4), crystallizer (5), mobile towing plate (6) and inside are
The injection tube (10) of hollow structure is provided at the liquid outlet of intermediate casting ladle (1) for controlling liquid zinc alloy flow velocity and flow
Slide gate nozzle, it is characterised in that: wherein one end of the injection tube (10) is equipped with the note that is connected with the inner cavity of injection tube (10)
Nozzle (8), the other end inside thread of injection tube (10) are connected with screw rod (11), and intermediate casting ladle (1) is mounted on injection tube (10)
Top and the liquid outlet of intermediate casting ladle (1) be connected with the inner cavity of injection tube (10), injection nozzle (8) is in the form of a column and injection nozzle
(8) outer lateral edge is successively arranged with the fixed form (2) and type core (4) far from the direction of injection tube (10), type core (4)
Inside is provided with extrusion chamber (12) in the exit of injection nozzle (8), direction of the outer lateral edge far from fixed form (2) of type core (4)
It is successively arranged with the core print (3) and crystallizer (5), the side of crystallizer (5) separate core print (3) is provided with described
Mobile towing plate (6), type core (4), crystallizer (5), core print (3) and mobile towing plate (6) are surrounded jointly for liquid Zn
The molding type chamber (7) of alloy, the inside of type core (4) are also provided with several die orifices (13) being connected with extrusion chamber (12), squeeze
Pressure chamber (12) is connected to by several die orifices (13) with type chamber (7).
2. a kind of injecting molding die of zinc-containing alloy pipe according to claim 1, it is characterised in that: the injection tube
(10) the resistance preheater (9) for being heated to injection tube (10) is provided on the outside of.
3. a kind of injecting molding die of zinc-containing alloy pipe according to claim 1, it is characterised in that: the mobile traction
Plate (6) offers dovetail groove (14) in one end close to crystallizer (5).
4. a kind of injecting molding die of zinc-containing alloy pipe according to claim 3, it is characterised in that: the mobile traction
Plate (6) is additionally provided with the seal groove (15) being connected with dovetail groove (14) on the inside of dovetail groove (14), and type core (4) is far from fixed
One end of template (2) matches with seal groove (15).
5. a kind of injecting molding die of zinc-containing alloy pipe according to claim 4, it is characterised in that: the mobile traction
Plate (6) is connected far from the one end of crystallizer (5) with hydraulic press (16).
6. a kind of injecting molding die of zinc-containing alloy pipe according to claim 1, it is characterised in that: the core print
(3) it is offered mounting groove (17) in one end close to fixed form (2), the type core (4) is in one end close to fixed form (2)
It is wholely set the deck (18) to match with mounting groove (17).
7. a kind of injecting molding die of zinc-containing alloy pipe according to claim 6, it is characterised in that: the core print
(3) it is connected with fixed form (2) by bolt.
8. a kind of injecting molding die of zinc-containing alloy pipe according to claim 1, it is characterised in that: the extrusion chamber
(12) tapered, the central axis of extrusion chamber (12) is overlapped with the central axis of injection nozzle (8) and injection nozzle (8) is from the taper knot
The apex of structure penetrates extrusion chamber (12).
9. a kind of injecting molding die using such as the described in any item zinc-containing alloy pipes of claim 1-8 prepares zinc-containing alloy pipe
Forming method, which comprises the following steps:
Step 1: injection tube (10) and screw rod (11) are heated to by the resistance preheater (9) being arranged on the outside of injection tube (10)
200-220 DEG C, and 50-60 minutes are kept the temperature at 200-220 DEG C；
Step 2: intermediate casting ladle (1) is poured into when liquid zinc alloy is heated to 530-550 DEG C, and opens and sets at 510-520 DEG C
The slide gate nozzle below intermediate casting ladle (1) is set, liquid zinc alloy is made to enter the inner cavity of injection tube (10)；
Step 3: rotation screw rod (11) makes the liquid zinc alloy in injection tube (10) inner cavity successively through injection nozzle (8) and extrusion chamber
(12) enter type chamber (7) afterwards and in type chamber (7) interior coagulation forming.
10. forming method according to claim 9, it is characterised in that: in the step three, liquid zinc alloy is successively passed through
After injection nozzle (8) and extrusion chamber (12) enter type chamber (7), the temperature in type chamber (7) is maintained at by 180- by crystallizer (5)
240℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592026.4A CN109622918B (en) | 2018-12-25 | 2018-12-25 | Injection molding die and molding method for zinc-based alloy pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592026.4A CN109622918B (en) | 2018-12-25 | 2018-12-25 | Injection molding die and molding method for zinc-based alloy pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109622918A true CN109622918A (en) | 2019-04-16 |
| CN109622918B CN109622918B (en) | 2023-08-15 |
Family
ID=66077486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811592026.4A Active CN109622918B (en) | 2018-12-25 | 2018-12-25 | Injection molding die and molding method for zinc-based alloy pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109622918B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589070A (en) * | 2020-11-27 | 2021-04-02 | 诸暨市旭祥弹簧有限公司 | Die-casting die of horizontal cold chamber die-casting machine and process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04123859A (en) * | 1990-09-14 | 1992-04-23 | Ryobi Ltd | Valve construction for degassing device of injection molding machine |
| JP2003245765A (en) * | 2002-02-20 | 2003-09-02 | Atsuta Kigyo Kk | Casting method for die casting and casting device for die casting |
| JP2005035196A (en) * | 2003-07-16 | 2005-02-10 | Toyoda Gosei Co Ltd | Method, mold and equipment for injection molding |
| WO2006134628A1 (en) * | 2005-06-13 | 2006-12-21 | Makabealumi, Inc | Molding apparatus |
| CN106584771A (en) * | 2016-10-19 | 2017-04-26 | 广州华研精密机械有限公司 | Injection molding process of syringe |
| CN209272440U (en) * | 2018-12-25 | 2019-08-20 | 许昌中发耐磨材料研究所有限公司 | A kind of injecting molding die of zinc-containing alloy pipe |
-
2018
- 2018-12-25 CN CN201811592026.4A patent/CN109622918B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04123859A (en) * | 1990-09-14 | 1992-04-23 | Ryobi Ltd | Valve construction for degassing device of injection molding machine |
| JP2003245765A (en) * | 2002-02-20 | 2003-09-02 | Atsuta Kigyo Kk | Casting method for die casting and casting device for die casting |
| JP2005035196A (en) * | 2003-07-16 | 2005-02-10 | Toyoda Gosei Co Ltd | Method, mold and equipment for injection molding |
| WO2006134628A1 (en) * | 2005-06-13 | 2006-12-21 | Makabealumi, Inc | Molding apparatus |
| CN106584771A (en) * | 2016-10-19 | 2017-04-26 | 广州华研精密机械有限公司 | Injection molding process of syringe |
| CN209272440U (en) * | 2018-12-25 | 2019-08-20 | 许昌中发耐磨材料研究所有限公司 | A kind of injecting molding die of zinc-containing alloy pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589070A (en) * | 2020-11-27 | 2021-04-02 | 诸暨市旭祥弹簧有限公司 | Die-casting die of horizontal cold chamber die-casting machine and process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109622918B (en) | 2023-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3539693B1 (en) | Low-pressure casting secondary pressure process for aluminum wheel | |
| WO2015035894A1 (en) | Method for producing profile for aircraft wing stringer | |
| EP2352608B1 (en) | Method for casting a cast part from a metal melt | |
| CN108160961B (en) | Gas-assisted continuous casting and extruding method | |
| CN108543914A (en) | A kind of high pressure hub casting mould and its casting method | |
| CN101927329A (en) | Vacuum high-pressure casting method | |
| CN105817610A (en) | Improved casting die and casting method for metal castings | |
| EP3539694B1 (en) | Aluminum wheel squeeze casting process and device | |
| CN108311658A (en) | Vacuum low speed pressure casting method | |
| CN208303840U (en) | A kind of high pressure hub casting mould | |
| CN209272440U (en) | A kind of injecting molding die of zinc-containing alloy pipe | |
| CN105750499A (en) | Method of utilizing conformal cold iron and forced convection to locally cool investment casting | |
| CN108526412A (en) | A kind of wheel hub casting mould with a plurality of running channel | |
| CN108889922A (en) | A kind of the compound of high-performance wrought magnesium alloy prepares mold | |
| CN106623856B (en) | A kind of method and apparatus improving extrusion casint Piston Casting quality | |
| CN209409190U (en) | A kind of running gate system of injection mold | |
| CN109622918A (en) | A kind of injecting molding die and forming method of zinc-containing alloy pipe | |
| CN108296468A (en) | A kind of pressure regulation supercharging casting machine fills the casting device and casting method of type High Pressure Solidification with low pressure | |
| CN104209482B (en) | Ingot mold for preparing steel ingot with large single weight and pouring method | |
| DE1558263A1 (en) | Process for the continuous casting of metals | |
| DE2255644B2 (en) | Method and mold for casting piston blanks | |
| CN106925752A (en) | A kind of water-cooled low pressure casting die | |
| CN109622835B (en) | Casting and forging composite forming device for shaft sleeve parts | |
| CN208408484U (en) | A kind of wheel hub casting mould with a plurality of running channel | |
| CN102784898B (en) | Local pressurization mechanism and method for producing automobile engine suspension shock insulators by same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |