CN105817603A - Shrinkage-prevention die casting die - Google Patents
Shrinkage-prevention die casting die Download PDFInfo
- Publication number
- CN105817603A CN105817603A CN201610269054.7A CN201610269054A CN105817603A CN 105817603 A CN105817603 A CN 105817603A CN 201610269054 A CN201610269054 A CN 201610269054A CN 105817603 A CN105817603 A CN 105817603A
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- CN
- China
- Prior art keywords
- die
- die casting
- plate
- casting
- shrinkage
- 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.)
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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
-
- 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
- B22D17/2272—Sprue channels
Abstract
The invention discloses a shrinkage-prevention die casting die which comprises a fixed die seat plate and a movable die seat plate. A die casting cavity for forming a die casting is formed between a fixed die sleeve plate and a movable die sleeve plate. A spherical dead head is arranged beside the die casting cavity and is provided with a pouring gate. The pouring gate is connected with a sprue, and the sprue is formed in the fixed die seat plate. The spherical dead head is arranged beside the thickest part of the die casting. An extrusion hole communicating with the die casting cavity is formed in the fixed die sleeve plate and a fixed die fixing plate. An extrusion punch is arranged in the extrusion hole. By means of the shrinkage-prevention die casting die, the spherical dead head is arranged beside the thickest wall part of the casting for the causes of shrinkage and shrinkage porosity, meanwhile, in the die casting molding process, pouring liquid is solidified into a semi-solid state, the extrusion punch conducts extrusion on the wall thickness position of the product, the functions of feeding and compacting are achieved, the problems of shrinkage and shrinkage porosity of the casting are effectively solved, and the quality of the casting is improved.
Description
Technical field
The present invention relates to auto parts and components Die Casting field, particularly relate to a kind of shrinkproof pore pressure casting mould.
Background technology
Die casting is to develop a kind of high efficiency, the metal forming casting method of few cutting in metal working process in modern age.The dimensional accuracy of die casting is high, and surface roughness value is low, has higher intensity and hardness.Due to above-mentioned advantage, die-casting process method has been widely used in all trades and professions of national economy.Die casting, in addition to for automobile and motorcycle, instrument, industrial electrical equipment, is also widely used for the industries such as household electrical appliance, agricultural machinery, radio, communication, lathe, transport, shipbuilding, photographing unit, clock and watch, computer, weaving apparatus.Wherein automobile and motorcycle manufacturing industry are topmost applications, and automobile accounts for 70%, and motorcycle accounts for 10%.
Meanwhile, die casting equipment and die casting are also persistently improving with growing with each passing hour.Occur in that the technology such as the multistage injection of die casting machine, mold cooling system design, die venting design, be greatly improved the inside entirety consistency of die casting.But these prior aries are to solving, and inside die-casting part shrinks the shrinkage porosite of formation, shrinkage cavity all has little effect.The existence of shrinkage cavity and porosity, it will usually be substantially reduced the mechanical property of foundry goods.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, invented the die casting of a kind of anti-shrinkage cavity, solve the shrinkage porosite of cast-internal, Shrinkage Problem, improve the mechanical property of foundry goods.
The technical solution adopted in the present invention is as follows:
A kind of shrinkproof pore pressure casting mould, include top clamping plate and Bottom clamp plate, described top clamping plate just to Bottom clamp plate side equipped with cover half fixed plate and cover half cage plate, described Bottom clamp plate just to the side of top clamping plate equipped with dynamic model cage plate and ejector pin retaining plate, equipped with push rod and ejector beam on described ejector pin retaining plate, a die casting die cavity forming die casting is had between described cover half cage plate and dynamic model cage plate, described die casting die cavity side is provided with spherical feeder, it is provided with running channel in described spherical feeder, described running channel is connected with cast gate, described cast gate is arranged on described top clamping plate, described spherical feeder is arranged on the side of die casting one-tenth-value thickness 1/10 the best part.It is provided with an extruded hole communicated with die casting die cavity on described cover half cage plate and cover half fixed plate, in described extruded hole, is provided with an extruding drift.
Described spherical feeder is with 25% refractory material and 10% binding agent as basis, oxidant 10%-40% needed for 5%-18% oxidizable metal, complete oxidation oxidizable metal, additionally also has starting mix based on oxidizable metal 10%-40%, this Riser material caloric value is big, good effect of heat insulation, feeding efficiency is high, is relatively applicable to Cast aluminium alloy gold, the die casting consistency using described rising head gained is high, and Shrinkage cavity feeding effect is good.
In a preferred embodiment of the present invention, described cover half fixed plate being provided with an oil cylinder, described in-oil cylinder flexible push rod is connected with the end of extruding drift.Described in-oil cylinder flexible push rod and extruded hole coaxial line, extruding drift can move back and forth with flexible push rod in extruded hole.
In a preferred embodiment of the present invention, after die casting completes, push rod and ejector beam is used to release die casting, it is to avoid to directly take out foundry goods and foundry goods causes various damage, improve the surface quality of die casting.
The invention have the benefit that the one shrinkproof pore pressure casting mould that the present invention points out, mechanism of production according to shrinkage cavity and porosity, position bigger for die casting one-tenth-value thickness 1/10 is arranged on die cavity mouth, die cavity mouth is provided with spherical feeder, dynamic model arranges extruding drift, quantitative pouring is taked before die casting, during die cast, part thin on die casting first solidifies, solidify after abundant part, spherical feeder final set, the part that on such die casting, abundant part first minification is thin, the abundant part of spherical feeder feeding again, thus shrinkage cavity is moved in spherical feeder；Potting syrup by settable liquid to semisolid, extruding drift extrudes to product wall thickness position, play the effect of feeding and compacting, after die casting completes, ejector beam and push rod is used to release die casting, avoid to directly take out and die casting is caused damage, the problem efficiently solving product shrinkage cavity and shrinkage porosite, the parts that final acquisition is fine and close and intact.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: 1 is cast gate；2 is top clamping plate；3 is cover half fixed plate；4 cover half cage plates；5 is running channel；6 is spherical feeder；7 is push rod；8 is ejector pin retaining plate；9 is Bottom clamp plate；10 is ejector beam；11 is dynamic model cage plate；12 is die casting die cavity；13 is die casting；14 is extruding drift；15 is flexible push rod；16 is extruded hole；17 is oil cylinder.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
Referring to Fig. 1, the embodiment of the present invention includes:
A kind of shrinkproof pore pressure casting mould, including: there are top clamping plate 2 and Bottom clamp plate 9, top clamping plate 2 just to Bottom clamp plate 9 side equipped with cover half fixed plate 3 and cover half cage plate 4, Bottom clamp plate 9 just to the side of top clamping plate 2 equipped with dynamic model cage plate 11 and ejector pin retaining plate 8, equipped with push rod 7 and ejector beam 10 on ejector pin retaining plate 8, a die casting die cavity 12 forming die casting is had between cover half cage plate 4 and dynamic model cage plate 11, it is provided with an extruded hole 16 communicated with die casting die cavity 12 on cover half cage plate 4 and cover half fixed plate 3, in extruded hole 16, is provided with an extruding drift 14.Die casting die cavity 12 side is provided with spherical feeder 6, and spherical feeder 6 is provided with running channel 5, and running channel 5 is connected with cast gate 1, and cast gate 1 is arranged on described top clamping plate 2, and spherical feeder 6 is arranged on the side of die casting 13 one-tenth-value thickness 1/10 the best part, and die casting 13 is stepped.
Being provided with an oil cylinder 17 in described cover half fixed plate 3, the flexible push rod 15 in described oil cylinder 17 is connected with the end of extruding drift 14.Flexible push rod 15 in described oil cylinder 17 and extruded hole 16 coaxial line, extruding drift 14 can move back and forth with flexible push rod 15 in extruded hole 16.
During die cast, after liquid metal fills die cavity, process of setting is become solid-state from liquid, wall thickness position can relatively lag behind due to the big solidification of heat energy, the thin position of peripheral wall solidifies prior to it, so wall thickness position can not get feeding, form hole in the region of internal final set due to tension force, here it is so-called shrinkage cavity and porosity.
Before die casting, oil cylinder 17 first shrinks, and extruding drift 14 falls back on extruded hole 16 top, uses quantitative pouring, and during die cast, the part that foundry goods is thin first solidifies, and solidifies, spherical feeder final set after abundant part.The part that so on foundry goods, abundant part feeding is thin, the abundant part of spherical feeder feeding again, thus shrinkage cavity is moved in spherical feeder；When molten metal is solidified to semisolid, start oil cylinder 17 so that extruding drift 14 extrudes forward, plays the effect of feeding and compacting, the problem effectively solving product shrinkage cavity and shrinkage porosite.
During the demoulding, start push rod 7 and ejector beam 10 ejects die casting 13, reduce the damage to die casting surface.
In sum, the one shrinkproof pore pressure casting mould that the present invention points out, the problem decreasing inside die-casting part shrinkage cavity and shrinkage porosite, improve the mechanical property of die casting.
Above one embodiment of the present of invention is described in detail, but described content has been only presently preferred embodiments of the present invention, it is impossible to be considered the practical range for limiting the present invention.All impartial changes made according to the present patent application scope and improvement etc., within all should still belonging to the patent covering scope of the present invention.
Claims (3)
1. a shrinkproof pore pressure casting mould, include top clamping plate (2) and Bottom clamp plate (9), it is characterized in that: described top clamping plate (2) just to Bottom clamp plate (9) side equipped with cover half fixed plate (3) and cover half cage plate (4), described Bottom clamp plate (9) just to the side of top clamping plate (2) equipped with dynamic model cage plate (11) and ejector pin retaining plate (8), equipped with push rod (7) and ejector beam (10) on described ejector pin retaining plate (8), a die casting die cavity (12) forming die casting is had between described cover half cage plate (4) and dynamic model cage plate (11), an extruded hole (16) communicated with die casting die cavity (12) it is provided with on described cover half cage plate (4) and cover half fixed plate (3), an extruding drift (14) it is provided with in described extruded hole (16).Described die casting die cavity (12) side is provided with spherical feeder (6), described spherical feeder (6) is with 25% refractory material and 10% binding agent as basis, 5%-18% oxidizable metal, oxidant 10%-40% needed for complete oxidation oxidizable metal, additionally also has the starting mix of 10%-40% based on oxidizable metal, running channel (5) it is provided with in described spherical feeder (6), described running channel (5) is connected with cast gate (1), described cast gate (1) is arranged on described top clamping plate (2), described spherical feeder (6) is arranged on the side of die casting (13) one-tenth-value thickness 1/10 the best part.
One the most according to claim 1 shrinkproof pore pressure casting mould, it is characterised in that: in order to prevent shrinkage cavity from producing, during operation, use quantitative pouring.
One the most according to claim 1 shrinkproof pore pressure casting mould, it is characterised in that: in order to protect die casting to be not damaged by when the demoulding, use push rod (7) and ejector beam (10) to release die casting when the demoulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610269054.7A CN105817603A (en) | 2016-04-26 | 2016-04-26 | Shrinkage-prevention die casting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610269054.7A CN105817603A (en) | 2016-04-26 | 2016-04-26 | Shrinkage-prevention die casting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105817603A true CN105817603A (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610269054.7A Pending CN105817603A (en) | 2016-04-26 | 2016-04-26 | Shrinkage-prevention die casting die |
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| CN (1) | CN105817603A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270448A (en) * | 2016-08-31 | 2017-01-04 | 宁波埃利特模具制造有限公司 | Cylinder cover compression mod and extruding feeding parameter setting method |
| CN107252883A (en) * | 2017-06-28 | 2017-10-17 | 上海皮尔博格有色零部件有限公司 | The cast gate governor motion and adjusting method of die casting |
| CN109794590A (en) * | 2018-12-03 | 2019-05-24 | 南京江淳机电装备科技有限公司 | A kind of device and method of local ultrasound semi-solid state assistant Dual squeeze casting casting |
| CN111842834A (en) * | 2020-07-09 | 2020-10-30 | 金榀精密工业(苏州)有限公司 | High quality semi-solid forming structure |
| CN113523225A (en) * | 2021-06-08 | 2021-10-22 | 刘玉柱 | Aluminum alloy die-casting feeding method and die-casting die |
| CN115889726A (en) * | 2023-03-13 | 2023-04-04 | 宁波鑫林模具科技有限公司 | Die casting die with in-die material handle and stub bar separating function |
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| CN101262968A (en) * | 2005-09-15 | 2008-09-10 | 五家政人 | Casting method |
| JP2008296247A (en) * | 2007-05-31 | 2008-12-11 | Toyota Motor Corp | Method for controlling die casting machine |
| CN101433944A (en) * | 2008-12-19 | 2009-05-20 | 洛阳双瑞特种装备有限公司 | High-efficient exothermic riser sleeve for casting |
| CN102218520A (en) * | 2011-05-26 | 2011-10-19 | 哈尔滨工业大学 | Light-alloy die-casting, filling, forging and compacting integrated forming device and forming method |
| CN102271836A (en) * | 2008-11-20 | 2011-12-07 | 亚世科化学补缩系统有限公司 | Molding material mixture and riser for casting aluminum |
| CN204075071U (en) * | 2014-09-26 | 2015-01-07 | 济南银城铸造厂 | Oil cylinder casting sand mold |
| CN204108284U (en) * | 2014-08-07 | 2015-01-21 | 山东泰开精密铸造有限公司 | Non-ferrous alloy low pressure casting die |
| CN204470568U (en) * | 2015-01-30 | 2015-07-15 | 成都市长江冶金制造有限公司 | A kind of die casting for the preparation of automobile oil nozzle |
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2016
- 2016-04-26 CN CN201610269054.7A patent/CN105817603A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101262968A (en) * | 2005-09-15 | 2008-09-10 | 五家政人 | Casting method |
| JP2008296247A (en) * | 2007-05-31 | 2008-12-11 | Toyota Motor Corp | Method for controlling die casting machine |
| CN102271836A (en) * | 2008-11-20 | 2011-12-07 | 亚世科化学补缩系统有限公司 | Molding material mixture and riser for casting aluminum |
| CN101433944A (en) * | 2008-12-19 | 2009-05-20 | 洛阳双瑞特种装备有限公司 | High-efficient exothermic riser sleeve for casting |
| CN102218520A (en) * | 2011-05-26 | 2011-10-19 | 哈尔滨工业大学 | Light-alloy die-casting, filling, forging and compacting integrated forming device and forming method |
| CN204108284U (en) * | 2014-08-07 | 2015-01-21 | 山东泰开精密铸造有限公司 | Non-ferrous alloy low pressure casting die |
| CN204075071U (en) * | 2014-09-26 | 2015-01-07 | 济南银城铸造厂 | Oil cylinder casting sand mold |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270448A (en) * | 2016-08-31 | 2017-01-04 | 宁波埃利特模具制造有限公司 | Cylinder cover compression mod and extruding feeding parameter setting method |
| CN106270448B (en) * | 2016-08-31 | 2018-06-05 | 宁波埃利特模具制造有限公司 | Cylinder cover compression mod and extruding feeding parameter setting method |
| CN107252883A (en) * | 2017-06-28 | 2017-10-17 | 上海皮尔博格有色零部件有限公司 | The cast gate governor motion and adjusting method of die casting |
| CN109794590A (en) * | 2018-12-03 | 2019-05-24 | 南京江淳机电装备科技有限公司 | A kind of device and method of local ultrasound semi-solid state assistant Dual squeeze casting casting |
| CN109794590B (en) * | 2018-12-03 | 2024-02-06 | 南京江淳机电装备科技有限公司 | Device and method for casting castings by semi-solid double extrusion assisted by local ultrasound |
| CN111842834A (en) * | 2020-07-09 | 2020-10-30 | 金榀精密工业(苏州)有限公司 | High quality semi-solid forming structure |
| CN113523225A (en) * | 2021-06-08 | 2021-10-22 | 刘玉柱 | Aluminum alloy die-casting feeding method and die-casting die |
| CN115889726A (en) * | 2023-03-13 | 2023-04-04 | 宁波鑫林模具科技有限公司 | Die casting die with in-die material handle and stub bar separating function |
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Application publication date: 20160803 |
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| WD01 | Invention patent application deemed withdrawn after publication |