CN2368631Y - Mould for bimetal piston by extrusion casting - Google Patents
Mould for bimetal piston by extrusion casting Download PDFInfo
- Publication number
- CN2368631Y CN2368631Y CN 99223713 CN99223713U CN2368631Y CN 2368631 Y CN2368631 Y CN 2368631Y CN 99223713 CN99223713 CN 99223713 CN 99223713 U CN99223713 U CN 99223713U CN 2368631 Y CN2368631 Y CN 2368631Y
- Authority
- CN
- China
- Prior art keywords
- cushion block
- piston
- head
- die
- mould
- 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.)
- Expired - Fee Related
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 28
- 238000005266 casting Methods 0.000 title abstract 2
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000007493 shaping process Methods 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004826 seaming Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a mould for a bimetal piston by extrusion casting, which is composed of an extrusion head, a moulding cavity and a demoulding mechanism. The utility model is characterized in that the extrusion head is formed by the method that an upper transition plate, a spacer flange, a chock, and a pressure head are in sequential connection with each other from top to bottom. The moulding cavity is composed of a female mould, a bottom plate, a plate, a sealing cushion block, an upper flange, a female mould case, and a lower flange. The demoulding mechanism is composed of an ejector tube, a lower ejector head, a spring and a cushion block. The utility model can mould the bimetallic piston in one step, and the bimetallic piston produced has the advantages of high density, low cost, and high efficiency. The contact surfaces of dual metal are welded with favorable performance.
Description
The utility model relates to the frock mould, and a kind of mould that is used for the extrusion casint bimetal piston is provided especially.
The piston that is used for pneumatic mechanism moves back and forth at the cylinder of pneumatic mechanism, plays transferring power, is the critical component in the mechanism, and piston is divided into two parts: 1. piston plate: 2. the axis of the piston.Two parts of initial piston all are to make with the 45# steel, weld together then, and its shortcoming is: 1. weight is big, and transmission performance is poor; 2. with the serious wear of steel cylinder body, cylinder body is damaged.After change aluminium piston dish and steel the axis of the piston into, piston plate processes with aluminium bar or aluminium sheet, middle cutting thread, with the steel the axis of the piston by thread connection as a whole.This design alleviates 50% than former design weight, but shortcoming be piston in reciprocating motion, thread looseness and wearing and tearing descend linking intensity and reliability greatly.Chinese patent 98232152.X has proposed the design philosophy of a kind of pneumatic mechanism with bimetal piston, and piston is made of piston plate that is closely linked and the axis of the piston, and piston plate is an aluminium matter part, and the axis of the piston is a steel spare.The position that is embedded on the axis of the piston in the piston plate is equipped with circular step, and this piston weight is light, and the reliability height is by the disposable shaping of method of extrusion casint.
The purpose of this utility model provides a kind of mould of extrusion casint bimetal piston, and it can the disposal molding bimetal piston, the piston density height of being produced, and bimetallic contact-making surface seam performance is good, and production cost is low, the efficient height.
The utility model provides a kind of mould of extrusion casint bimetal piston, is made of extrusion head, shaping die cavity, mould emptier three parts, it is characterized in that:
Described extrusion head is linked in sequence from top to bottom and is formed by last rebound (1), counter flange (2), chock (3), pressure head (4), and the top land shape is got in pressure head (4) bottom;
Described shaping die cavity is by die (5), base plate (7), base (8), sealing cushion block (16), upper flange (15), die case (14), lower flange (13) is formed, base plate (7), die (5), die case (14) is nestable successively from inside to outside closely cooperate fastening by last lower flange (15) (13), be fixed on the base (8) by lower flange (13) again, sealing cushion block (6) is taken and is embedded on the base plate (7), by die (5), base plate (7), the shaping die cavity interior shape that sealing cushion block (6) constitutes is identical with piston side wall and bottom shape, die (5) outer wall is provided with between groove and the die case (14) and forms cooling-water duct (6), porose in the middle of the sealing cushion block (16), pass in order to the axis of the piston;
Described mould emptier is by ejecting tube (9), ejecting head (10), a spring (11), cushion block (12) down and form; under eject head and spring (11) be set on (10), put on the spring cushion block (12), down eject head (10), a spring (11), cushion block (12) outer cover again with support and guiding usefulness eject tube (9).
The utlity model has following characteristics:
1. treat that compound plug can fluctuate by regulating the ejection device mechanism that is made of push-down head and spring in mould; the spring of bottom has enough compression strokes; fully closed and when ejecting at seaming chuck; all be in the effective compression zone; can not form rigid support to plug; security when so both having guaranteed that seaming chuck is descending and exerting pressure; plug is tightly withstood on the seaming chuck and descending together; guaranteed the accurate location of plug in composite members, the top of composite members need not be processed.
2. regulate the height of plug, do not contact when making liquid metal pour into die cavity with faying face, just plug is heated, when plug moves down with pressure head, constantly push the liquid metal of having lowered the temperature open, make the higher liquid metal of internal temperature arrive mandrel surface, to surface erosion, corrode, continue simultaneously the plug heating is continued to move down, composite surface just contacts with liquid metal, when the mould mold closing, liquid metal fills type, at this moment, applies high pressure, further improve the infiltration of liquid metal to plug, increase the phase counterdiffusion between two kinds of materials, thereby obtain desirable metallurgical seam interface, bond strength improves greatly.
By embodiment in detail the utility model is described in detail below in conjunction with accompanying drawing.
Accompanying drawing 1 is extrusion casint bimetal piston structural representation.
Accompanying drawing 2 is one of extrusion casint bimetal piston duty schematic diagram.
Accompanying drawing 3 is two schematic diagrames of extrusion casint bimetal piston duty.
Accompanying drawing 4 is three schematic diagrames of extrusion casint bimetal piston duty.
Embodiment
The primary structure of mould is (Fig. 1) as shown in the figure, and rebound 1, counter flange 2, chock 3 and pressure head 4 constitute extrusion head on this mould, and extrusion head connects by the movable entablature of last rebound 1 and press, and entablature is driven by the press piston and moves up and down.But die is combined into the shaping die cavity that water flowing is cooled off by die case 14 and upper flange, and cooling water is by helicla flute cooling-water duct 5, so that when the extrusion casint liquid metal, keep mold temperature in the scope of required control.Base plate 7 and sealing cushion block 16 make the die sealing, are used to hold liquid metal, and eject tube and eject head down and be connected with liftout tank under the press, the stripper apparatus of formation product, spring 11 and cushion block lead and supporting arrangement for 12 holding of formation metallic rod.
Production process is shown by Fig. 2, Fig. 3, Fig. 4 respectively.In Fig. 2, extrusion head rises with the press entablature, and mold open behind cleaning mould spray paint, is placed a metallic rod 17, pours into molten metal liquid 18, and the extrusion head liquid towards metal that descends is rapidly exerted pressure then, forms state shown in Figure 3.Fig. 3 has shown the situation that extruding stops, and extrusion head at first promotes metallic rod and moves downward the design position in extrusion process, and then the liquid towards metal is exerted pressure, under pressure, the liquid metal circulation is full of the cavity that extrusion head and die form, and molten metal solidifies rapidly, because last extrusion head keep-ups pressure, the molten metal that solidifies produces distortion, thereby volume is reduced, and produces feeding, thereby eliminate the issuable shrinkage cavity of liquid metal solidification process, loose, and make the workpiece densification.Gas major part in the liquid metal is discharged along die gap, and the workpiece inner air vent is significantly reduced.
Spring 11 produces a reaction force on metallic rod when being under pressure, make it solidify deformational displacement with liquid metal routing motion and adjusting, forms very firm combining thereby make metallic rod and molten metal solidify the back.
Fig. 4 is after liquid metal solidifies fully, takes out the schematic diagram of workpiece.Form a complete workpiece with metallic rod after the liquid metal solidification, this workpiece is made of two kinds of different metals, and its fusing point, physical property, mechanical performance difference are very big.Be difficult to obtain high densification, high performance product with other technology.Product ejects head and ejects tube under liftout tank upwards promotes down, and workpiece is released die.After taking out workpiece, following liftout tank resets, and can carry out next round extrusion casint process.
Claims (1)
1. the mould of an extrusion casint bimetal piston is made of extrusion head, shaping die cavity, mould emptier three parts, it is characterized in that:
Described extrusion head is linked in sequence from top to bottom and is formed by last rebound (1), counter flange (2), chock (3), pressure head (4), and the top land shape is got in pressure head (4) bottom;
Described shaping die cavity is by die (5), base plate (7), base (8), sealing cushion block (16), upper flange (15), die case (14), lower flange (13) is formed, base plate (7), die (5), die case (14) is nestable successively from inside to outside closely cooperate fastening by last lower flange (15) (13), be fixed on the base (8) by lower flange (13) again, sealing cushion block (6) is taken and is embedded on the base plate (7), by die (5), base plate (7), the shaping die cavity interior shape that sealing cushion block (6) constitutes is identical with piston side wall and bottom shape, die (5) outer wall is provided with between groove and the die case (14) and forms cooling-water duct (6), porose in the middle of the sealing cushion block (16), pass in order to the axis of the piston:
Described mould emptier is by ejecting tube (9), ejecting head (10), a spring (11), cushion block (12) down and form; under eject head and spring (11) be set on (10), put on the spring cushion block (12), down eject head (10), a spring (11), cushion block (12) outer cover again with support and guiding usefulness eject tube (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99223713 CN2368631Y (en) | 1999-05-06 | 1999-05-06 | Mould for bimetal piston by extrusion casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99223713 CN2368631Y (en) | 1999-05-06 | 1999-05-06 | Mould for bimetal piston by extrusion casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2368631Y true CN2368631Y (en) | 2000-03-15 |
Family
ID=34013902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99223713 Expired - Fee Related CN2368631Y (en) | 1999-05-06 | 1999-05-06 | Mould for bimetal piston by extrusion casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2368631Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372034B (en) * | 2007-08-23 | 2010-05-19 | 沈阳铝镁设计研究院 | Apparatus for moulding and de-moulding large aluminum ingot |
| CN103317592A (en) * | 2013-06-26 | 2013-09-25 | 苏州唐氏机械制造有限公司 | Application method of stripping-convenient mold |
| 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 |
| CN108714990A (en) * | 2018-06-18 | 2018-10-30 | 杜宗英 | The manufacture mold of mine feed bin Arch-Breaking Device polyurethane piston |
-
1999
- 1999-05-06 CN CN 99223713 patent/CN2368631Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372034B (en) * | 2007-08-23 | 2010-05-19 | 沈阳铝镁设计研究院 | Apparatus for moulding and de-moulding large aluminum ingot |
| CN103317592A (en) * | 2013-06-26 | 2013-09-25 | 苏州唐氏机械制造有限公司 | Application method of stripping-convenient mold |
| 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 |
| CN108714990A (en) * | 2018-06-18 | 2018-10-30 | 杜宗英 | The manufacture mold of mine feed bin Arch-Breaking Device polyurethane piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |