CN106735083B - A kind of hyperbar casting head prefabricated component enhancing Piston mould - Google Patents
A kind of hyperbar casting head prefabricated component enhancing Piston mould Download PDFInfo
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- CN106735083B CN106735083B CN201611170544.8A CN201611170544A CN106735083B CN 106735083 B CN106735083 B CN 106735083B CN 201611170544 A CN201611170544 A CN 201611170544A CN 106735083 B CN106735083 B CN 106735083B
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- external mold
- prefabricated component
- backform
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- block
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- 238000005266 casting Methods 0.000 title claims abstract description 26
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 21
- 229910052782 aluminium Inorganic materials 0.000 claims description 18
- 210000004907 gland Anatomy 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 5
- 150000003839 salts Chemical group 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000001125 extrusion Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000009716 squeeze casting Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
- B22D19/0027—Cylinders, pistons pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The hyperbar casting head prefabricated component enhancing Piston mould of the present invention, it is characterised in that：External mold, inner core, backform, seam allowance circle and pin core including mutual cooperation；External mold is formed by left and right two halves Symmetric Composite, and left and right two halves being capable of folding；Backform can be from external mold upper end and external mold pairing；Inner core can be extended upwardly into inside external mold from external mold lower end；Selling core includes left and right two, on the external mold of left and right two；Seam allowance circle is connected with external mold.The beneficial effects of the invention are as follows：Using the hyperbar cast pistons head prefabricated component enhancing Piston mould, because atmospheric pressure only has 5MPa~15MPa, equivalent to the 1/10 of common extrusion casint pressure, mould structure is simple, flexible movements, mould cost only uses the 1/3 of extrusion casint, and production efficiency is higher, it is possible to increase more than 1 times of production efficiency.
Description
Technical field
The invention belongs to casting for piston field of die equipment, is related to a kind of hyperbar casting head prefabricated component enhancing piston mould
Tool.
Background technology
With the continuous development of society, people are higher and higher to the emission request of vehicle exhaust, and major motor corporation, start
The explosion pressure and liter of engine is continuously improved in order to make the product produced reach emission request in machine factory from design
Power, the intensity of common aluminum piston have reached material limits, cannot increasingly meet growing design requirement, we
Must be considered in higher to intensity requirement piston crown combustion chamber position on the basis of aluminum piston strengthens, and this piston must
It is so the developing direction of Future Automobile Engine piston, this prefabricated component combustion chamber enhancing piston is under pressure high temperature
Liquid aluminium liquid is squeezed into what is formed in prefabricated component, and since cost is higher, manufacture difficulty is larger, current this piston is also considerably less
See, the most common mode of production is extrusion casint, and low production efficiency, and yield rate is low, and production difficulty is very big.
Prior art major defect is as follows：
1st, mould is complicated, and manufacturing expense is expensive：This Squeeze Casting is coagulation forming under pressure, is not mended
Contracting riser, pressure is higher, and mold cavity pressure is high, and die manufacturing cost is high；
2nd, prior art production efficiency is low：Many actions are all that operator has been manually done, and the daily output is low；
3rd, die life is relatively low, because extrusion casint pressure is higher, the use of some mold components directly contacted with molten aluminum
Service life only has 5000, and die life is about short；
4th, specific yield cost of labor is higher：The prior art, which needs 3 people to coordinate, could operate 1 equipment；
5th, follow-up machining cost is higher：The many structure castings of the prior art do not come out, such as piston pin hole, piston seam allowance
All it is to process to realize by subsequent mechanical.
The content of the invention
In order to compensate for the shortcomings of the prior art, the present invention provides a kind of work efficiency height, the hyperbar of service life length
Cast head prefabricated component enhancing Piston mould.The mould is the hyperbar casting for piston mould using high pressure air as pressure medium
Tool, this mould can realize prefabricated component combustion chamber enhancing piston production, have it is simple and light, it is easily operated, can
Realize the advantages that prefabricated component is accurately positioned, and production efficiency is high.
The present invention is achieved through the following technical solutions：
The hyperbar casting head prefabricated component enhancing Piston mould of the present invention, it is characterised in that：It is outer including mutual cooperation
Mould, inner core, backform, seam allowance circle and pin core；External mold is formed by left and right two halves Symmetric Composite, and left and right two halves being capable of folding；Backform energy
Enough from external mold upper end and external mold pairing；Inner core can be extended upwardly into inside external mold from external mold lower end；Selling core includes left and right two, peace
On the external mold of left and right two；Seam allowance circle is connected with external mold.
Block, outer mode slider and sliding block contiguous block under external mold of the external mold including interconnection, outer mode slider pass through block under external mold
On sliding slot be slidably mounted under external mold on block, the outer mode slider in left and right two can realize open and close movement, outer mode slider and sliding block
Contiguous block is fixedly connected, and pin core is fixed by screws under external mold on block.
Backform includes block, insulating riser sleeve and riser jacket gland under the backform that is connected with each other, and block can be with external mold under backform
Contact, insulating riser sleeve is fixedly mounted under backform on block, riser jacket gland is installed on the outside of insulating riser sleeve, on riser jacket gland
Equipped with pressure-air import.
Seam allowance circle is fixed on casting machine worktable；Inner core connection oil cylinder, which is realized, to move up and down, and is moved to and seam allowance circle
Cooperation position；The outer mode slider connection oil cylinder of external mold realizes open and close movement, and backform connection oil cylinder, which is realized, to move up and down.
Outer mode slider is equipped with prefabricated component positioning table, and prefabricated component is placed on prefabricated component positioning table.
The material of prefabricated component uses alumina fibre or aluminium borate whisker；The making material of insulating riser sleeve for TC4 or
QTANi30Si5Cr5。
The exhaust equipped with 0.2mm is stitched at block cooperation under outer mode slider and backform.
External mold is equipped with edge ring positioning convex platform, and outer mode slider is equipped with pressure edge ring convex platform, can realize that edge ring is accurately positioned.
External mold is equipped with protection boss；The running channel string water cooling passageway for being passed through cooling water is designed with external mold.
Block is equipped with mechanical clamping apparatus under backform, coordinates after backform downlink with the locked mode inclined-plane on outer mode slider and realizes machine
Tool locked mode.
The beneficial effects of the invention are as follows：
Piston mould is strengthened using the hyperbar cast pistons head prefabricated component, because atmospheric pressure only has 5MPa~15MPa,
Equivalent to the 1/10 of common extrusion casint pressure, mould structure is simple, flexible movements, and mould cost is only with extrusion casint
1/3, production efficiency is higher, it is possible to increase more than 1 times of production efficiency.
Using the mould, have because edge ring positioning has on positioning convex platform under usinging by the way of pressure inlays ring convex platform, can accurately protect
Card edge ring position, reduces the foundary loss caused by edge ring position changes.
Using the mould, because prefabricated component is nearby equipped with exhaust seam and vent groove configuration, prefabricated component is under pressure into aluminium
It is all right, microstructure is observed under the microscope, does not find that Micro shrinkage exists, piston combustion bowl prefabricated component enhancing position
Testing Tensile Strength at Elevated Temperature（350℃）More than 200MPa can be reached, be more than 2 times of aluminium base body region intensity, enhancing effect is non-
Chang Mingxian.
Using the mould, for prefabricated component using the positioning table positioning on outer mode slider, prefabricated component accurate positioning is errorless, and operates
It is convenient and efficient.
Through experiment, the prefabricated component combustion chamber that mould and the forging type of hyperbar casting are produced using the above structure increases
Strong piston, disclosure satisfy that the high detonation pressure of current engine, the design requirement of high power per liter, has passed through engine test at present.
Brief description of the drawings
Attached drawing is structure diagram of the invention.
Fig. 1 is the sectional structure chart of the present invention；Fig. 2 is the left view profile of the present invention；Fig. 3 is the cast outer mold structure of the present invention
Figure；Fig. 4 is the external mold top view of the present invention；Fig. 5 is the backform sectional structure chart of the present invention.
Wherein, 1 external mold, 2 inner cores, 3 backforms, 4 seam allowance circles, 5 pin cores, block under 6 external molds, 7 outer mode sliders, 8 sliding block contiguous blocks,
9 times guide-localization grooves, 10 side guide-localization grooves, 11 edge ring positioning convex platforms, 12 pressure edge ring convex platforms, 13 locked mode inclined-planes, under 14 backforms
Block, 15 riser jacket glands, 16 insulating riser sleeves, 17 mechanical clamping apparatus, 18 air discharge ducts, 19 pressure-air imports, 20 prefabricated components
Positioning table, 21 sprue cups, 22 salt cores, 23 edge rings, 24 prefabricated components, 25 protection boss, 26 exhaust seams, 27 running channel string water coolings are led to
Road.
Embodiment
Attached drawing is a kind of specific embodiment of the invention.
The hyperbar casting head prefabricated component enhancing Piston mould of the present invention, including the external mold 1 of mutual cooperation, inner core 2, top
Mould 3, seam allowance circle 4 and pin core 5；External mold is formed by left and right two halves Symmetric Composite, and left and right two halves being capable of folding；Backform can be from external mold
Upper end and external mold pairing；Inner core can be extended upwardly into inside external mold from external mold lower end；Selling core includes left and right two, installed in left and right
On two external molds；Seam allowance circle is connected with external mold.
Block 6, outer mode slider 7 and sliding block contiguous block 8 under external mold of the external mold 1 including interconnection, outer mode slider pass through external mold
Sliding slot on lower piece is slidably mounted under external mold on block, and the outer mode slider in left and right two can realize open and close movement, outer mode slider with
Sliding block contiguous block is fixedly connected, and pin core 5 is fixed by screws under external mold on block 6.
Backform 3 includes block 14, insulating riser sleeve 16 and riser jacket gland 15 under the backform that is connected with each other, and block can under backform
Contacted with external mold, insulating riser sleeve is fixedly mounted under backform on block, riser jacket gland is installed on the outside of insulating riser sleeve, riser buss
Gland is equipped with pressure-air import.
Seam allowance circle 4 is bolted on casting machine worktable；Inner core 2 connects oil cylinder and realizes up and down motion, is moved to
With the cooperation position of seam allowance circle；The outer mode slider connection oil cylinder of external mold realizes open and close movement, and backform connection oil cylinder realizes fortune up and down
It is dynamic.
Outer mode slider 7 can be realized after being connected by the lower guide-localization groove 9 on block under external mold 6 and side guide-localization groove 10
Slided under external mold on block.External mold 1 can the open and close movement on casting machine working slider, backform 3 can be with the drive of oil cylinder
Realize and move up and down.
A kind of hyperbar is the compression casting mode of medium, during work, high pressure air pressure-air import 19 into
Enter, the pressure limit of compressed air is in 5MPa~15MPa；
The external mold 1 is equipped with external mold slide block structure, and outer mode slider 7 can be realized and horizontally slipped under external mold on block 6, outside
Mode slider is equipped with prefabricated component positioning table 20, and prefabricated component is placed on prefabricated component positioning table, can accurately fix prefabricated component 24
Position；
The material of the prefabricated component 24 can be a variety of ceramic materials such as alumina fibre and aluminium borate whisker；
The exhaust equipped with 0.2mm stitches 26 to the mould at 14 cooperation of block under outer mode slider 7 and backform, easy to prefabricated component 24
The air in prefabricated component is excluded during aluminium is filled in pressurization；
The mould external mold is equipped with edge ring positioning convex platform 11, and the outer mode slider 7 of the mould is equipped with pressure edge ring convex platform 12,
It can realize that edge ring 23 is accurately positioned, prevent edge toroidal drift；
The mould external mold is equipped with protection boss 25, prevent molten aluminum pressurize after unexpected splash cause casualty accident；
Running channel string water cooling passageway 27 is designed with the mould external mold, after molten aluminum cast, in running channel string water cooling passageway
Cooling water cooling is passed through in 27, runner section is quickly solidified, molten aluminum causes to hurt sb.'s feelings from sprue cup splash after preventing pressurization
Accident；
The making material of the mould insulating riser sleeve 16 is TC4 or QTANi30Si5Cr5, both materials have higher
Intensity, can not damage under pressure, cutter has relatively low heat transfer coefficient（Heat transfer coefficient only has the 1/ of common die steel
5）, insulating riser sleeve can be played the role of；
Block 14 is equipped with mechanical clamping apparatus 17 under the mold top holder, the locked mode after backform downlink and on outer mode slider 7
Inclined-plane 13, which coordinates, realizes mechanical locked mode, prevents mould to be open in pressure process China and foreign countries mode slider 7.
The hyperbar casting head prefabricated component enhancing Piston mould of the present invention, its course of work are：
1st, inner core 2 is moved from lower to upper by oil cylinder, is moved to the cooperation position with seam allowance circle；.
2nd, baked salt core 22 is fixed on the salt core locating platform of inner core 2；
3rd, outer mode slider 7 is linked under external mold on block 6 by lower guide-localization groove 9 and side guide-localization groove 10, and sliding block connects
Block 8 is connect to be fixed by screws on outer mode slider 7, under the action of oil cylinder, outer mode slider 7 can slide on block under external mold 6,
Outer 7 initial position of mode slider is in separated position；
4th, under the action of external mold oil cylinder, promote external mold 1 to be slided on casting machine worktable, external mold 1 is in molding shape
State；
5th, the edge ring 23 handled well is fixed on edge ring positioning convex platform 11；
6th, under the action of oil cylinder, outer mode slider 7 is promoted, outer mode slider 7 is in molding state, while press edge ring convex platform
12 and edge ring 23 upper plane contact, play ring 23 to edge positioning action up and down；
7th, baked prefabricated component 24 is fixed on prefabricated component positioning table 20；
8th, backform 3 moves downward under the action of oil cylinder and reaches molding state, at this time, the mechanical locked mode dress on backform 3
Putting the locked mode inclined-plane 13 on 17 and outer mode slider 7 coordinates contact to play the role of locked mode；
9th, high temperature molten aluminum is poured at sprue cup 21, molten aluminum is full of whole closed cavity；
10th, cooling water is passed through in running channel string water cooling passageway 27 to be cooled down；
11st, after mold cavity pours into high temperature molten aluminum 10-15 seconds, pressure-air import 19 be passed through pressure for 5MPa~
The gases at high pressure of 15MPa；
12nd, high temperature molten aluminum is quickly poured in prefabricated component 24 under the effect of the pressure, while original air in prefabricated component 24
Discharged by being vented seam 26 and air discharge duct 18；
13rd, after pressure process, gases at high pressure are discharged in pressure-air import 19, are treated that Piston Casting solidification is completed, are opened
Mould, and remove piston blank with manipulator；
Into next working cycles ....
Claims (6)
- A kind of 1. hyperbar casting head prefabricated component enhancing Piston mould, it is characterised in that：It is external mold including mutual cooperation, interior Core, backform, seam allowance circle and pin core；External mold is formed by left and right two halves Symmetric Composite, and left and right two halves being capable of folding；Backform can be from outer Mould upper end and external mold pairing；Inner core can be extended upwardly into inside external mold from external mold lower end；Selling core includes left and right two, installed in a left side On right two external molds；Seam allowance circle is connected with external mold；Outer mode slider is equipped with prefabricated component positioning table, and prefabricated component is placed on prefabricated component positioning table；The material of prefabricated component uses alumina fibre or aluminium borate whisker；The making material of insulating riser sleeve for TC4 or QTANi30Si5Cr5；The exhaust equipped with 0.2mm is stitched at block cooperation under outer mode slider and backform；External mold is equipped with edge ring positioning convex platform, and outer mode slider is equipped with pressure edge ring convex platform, can realize that edge ring is accurately positioned；The course of work is：（1）Inner core is moved from lower to upper by oil cylinder, is moved to the cooperation position with seam allowance circle；.（2）Baked salt core is fixed on the salt core locating platform of inner core；（3）Outer mode slider is linked under external mold on block by lower guide-localization groove and side guide-localization groove, and sliding block contiguous block passes through Screw is fixed on outer mode slider, and under the action of oil cylinder, outer mode slider can slide on block under external mold, and outer mode slider is initial Position is in separated position；（4）Under the action of external mold oil cylinder, promote external mold to be slided on casting machine worktable, external mold is in molding state；（5）The edge ring handled well is fixed on edge ring positioning convex platform；（6）Under the action of oil cylinder, outer mode slider is promoted, outer mode slider is in molding state, while press edge ring convex platform and edge The upper plane contact of ring, plays the positioning action up and down to edge ring；（7）Baked prefabricated component is fixed on prefabricated component positioning table；（8）Backform moves downward under the action of oil cylinder and reaches molding state, at this time, mechanical clamping apparatus on backform and outer Locked mode inclined-plane on mode slider coordinates contact to play the role of locked mode；（9）High temperature molten aluminum is poured at sprue cup, molten aluminum is full of whole closed cavity；（10）Cooling water is passed through in running channel string water cooling passageway to be cooled down；（11）After mold cavity pours into high temperature molten aluminum 10-15 seconds, it is 5MPa~15MPa's to be passed through pressure in pressure-air import Gases at high pressure；（12）High temperature molten aluminum is quickly poured in prefabricated component under the effect of the pressure, while original air passes through exhaust in prefabricated component Seam and air discharge duct discharge；（13）After pressure process, gases at high pressure are discharged in pressure-air import, treat that Piston Casting solidification is completed, die sinking, and Piston blank is removed with manipulator；Into next working cycles.
- 2. hyperbar casting head prefabricated component enhancing Piston mould according to claim 1, it is characterised in that：External mold includes Block, outer mode slider and sliding block contiguous block, outer mode slider are slidably installed by the sliding slot on block under external mold under the external mold of interconnection Under external mold on block, the outer mode slider in left and right two can realize open and close movement, and outer mode slider is fixedly connected with sliding block contiguous block, pin Core is fixed by screws under external mold on block.
- 3. hyperbar casting head prefabricated component enhancing Piston mould according to claim 1, it is characterised in that：Backform includes Block, insulating riser sleeve and riser jacket gland under the backform of interconnection, block can be contacted with external mold under backform, solid on block under backform Dingan County fills insulating riser sleeve, and riser jacket gland is installed on the outside of insulating riser sleeve, and riser jacket gland is equipped with pressure-air import.
- 4. hyperbar casting head prefabricated component enhancing Piston mould according to claim 1, it is characterised in that：Seam allowance circle is consolidated It is scheduled on casting machine worktable；Inner core connection oil cylinder, which is realized, to move up and down, and is moved to the cooperation position with seam allowance circle；Outside external mold Mode slider connection oil cylinder realizes open and close movement, and backform connection oil cylinder, which is realized, to move up and down.
- 5. hyperbar casting head prefabricated component enhancing Piston mould according to claim 1, it is characterised in that：Set on external mold There is protection boss；The running channel string water cooling passageway for being passed through cooling water is designed with external mold.
- 6. hyperbar casting head prefabricated component enhancing Piston mould according to claim 1, it is characterised in that：Block under backform Mechanical clamping apparatus is equipped with, coordinates after backform downlink with the locked mode inclined-plane on outer mode slider and realizes mechanical locked mode.
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| CN201611170544.8A CN106735083B (en) | 2016-12-28 | 2016-12-28 | A kind of hyperbar casting head prefabricated component enhancing Piston mould |
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| CN201611170544.8A CN106735083B (en) | 2016-12-28 | 2016-12-28 | A kind of hyperbar casting head prefabricated component enhancing Piston mould |
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| CN106735083B true CN106735083B (en) | 2018-05-11 |
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| CN108856653B (en) * | 2017-06-29 | 2020-03-17 | 西安康博新材料科技有限公司 | Preparation mold and preparation method of piston for high-power engine |
| CN112247117B (en) * | 2020-07-24 | 2021-09-28 | 南平华田机械工业有限公司 | Mould assembly for greatly improving casting yield of aluminum piston blank of heavy diesel engine |
| CN113000813A (en) * | 2021-02-23 | 2021-06-22 | 广州和德轻量化成型技术有限公司 | Die and method for producing aluminum alloy composite piston by indirect extrusion casting process |
| CN114346219B (en) * | 2021-11-19 | 2024-01-23 | 山东双港活塞股份有限公司 | Quick cooling piston die |
| CN114367638B (en) * | 2021-11-19 | 2024-06-14 | 山东双港活塞股份有限公司 | Cooling method for rapidly cooling piston die |
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| IT1124969B (en) * | 1979-11-13 | 1986-05-14 | Tva Srl | CASTING MACHINE IN METAL SHELL MELT IN GENERAL AND LIGHT ALLOY IN PARTICULAR |
| JP2005305466A (en) * | 2004-04-19 | 2005-11-04 | Art Metal Mfg Co Ltd | Molten metal forging apparatus and molten metal forging method |
| CN102632219A (en) * | 2012-05-15 | 2012-08-15 | 山东滨州渤海活塞股份有限公司 | Method for casting aluminum piston of gasoline engine |
| CN202606806U (en) * | 2012-05-23 | 2012-12-19 | 山东滨州渤海活塞股份有限公司 | Novel aluminum piston mould of weight reduction gasoline engine |
| CN106141141A (en) * | 2015-04-21 | 2016-11-23 | 浙江亚路铸造有限公司 | The piston of a kind of large aluminum alloy extrusion casint and foundry engieering thereof |
| CN204711156U (en) * | 2015-06-25 | 2015-10-21 | 宁波众发机械模具有限公司 | A kind of low Metallic Casting Die & Mold covering shell mould |
| CN105880486B (en) * | 2016-05-20 | 2019-04-26 | 江苏苏美达车轮有限公司 | A kind of mold and method of casting hub |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180323 Address after: 256602 Bohai Road, Shandong, No. twenty-one, No. 569, Binzhou Applicant after: BINZHOU BOHAI PISTON Co.,Ltd. Address before: 256602 Bohai Road, Shandong, No. twenty-one, No. 569, Binzhou Applicant before: SHANDONG BINZHOU BOHAI PISTON Co.,Ltd. |
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| GR01 | Patent grant | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A High Pressure Casting Head Prefabrication Reinforced Piston Mold Granted publication date: 20180511 Pledgee: Binzhou branch of China CITIC Bank Co.,Ltd. Pledgor: BINZHOU BOHAI PISTON Co.,Ltd. Registration number: Y2024980014544 |