CN203751244U - Filter device for pouring piston - Google Patents
Filter device for pouring piston Download PDFInfo
- Publication number
- CN203751244U CN203751244U CN201320713868.7U CN201320713868U CN203751244U CN 203751244 U CN203751244 U CN 203751244U CN 201320713868 U CN201320713868 U CN 201320713868U CN 203751244 U CN203751244 U CN 203751244U
- Authority
- CN
- China
- Prior art keywords
- filter screen
- piston
- pouring
- mold body
- filter
- 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
- 239000003365 glass fiber Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 19
- 229910001338 liquidmetal Inorganic materials 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 241000270728 Alligator Species 0.000 description 1
- 241001584775 Tunga penetrans Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
一种用于活塞浇注的过滤装置，它包括活塞外模本体、浇注口、滤网、滤网定位销、内腔和冒口。利用滤网定位销在活塞外模本体中浇注口的内壁上安装固定一种玻璃纤维材质的滤网，对注入活塞模具的铝液进行过滤，能够有效减少进入活塞模型的铝液中杂质及氧化物含量，使活塞组织更加致密，从而保证活塞的刚度和强度，延长其使用寿命。
A filtering device for piston pouring, which includes a piston outer mold body, a pouring port, a filter screen, a filter screen positioning pin, an inner cavity and a riser. Use the filter screen positioning pin to install and fix a glass fiber filter screen on the inner wall of the pouring port in the piston outer mold body to filter the aluminum liquid injected into the piston mold, which can effectively reduce impurities and oxidation in the aluminum liquid entering the piston model The substance content makes the piston structure more dense, thereby ensuring the rigidity and strength of the piston and prolonging its service life.
Description
Technical field
The utility model relates to a kind of filter for piston casting, belongs to casting for piston field.
Background technology
Engine is the heart of automobile, and piston is the most severe parts of working environment in engine, endures high temperature, high pressure and high-revolving wrecking its service life to the fullest extent.Along with the continuous increase of automobile pollution, high-quality piston can bring huge economic benefit.Common piston failure form has wearing and tearing, eccentric wear, mechanical damage and scorification etc., and this,, on the one hand because the objective condition of work of piston causes, also shows the piston manufacturing process space that still has greatly improved on the other hand.
At present, the moulding of piston still mainly adopts has that efficiency is high, cost is low and the forging type of the advantage such as simple to operate, thereby optimization piston casting technique is a kind of correct thinking of jigger lifting piston quality.The mold-filling capacity of the defects such as that casting easily produces is loose, shrinkage cavity and segregation and liquid metal is closely related.Casting character mainly refers to mobility, shrinkage, segregation and air-breathing property etc., and wherein mobile performance directly affects the mold-filling capacity of liquid metal.In order to improve mold-filling capacity, conventional method has the mobility that increases liquid metal by external force, as compression casting, also can improve die cavity inner flow passage in addition.But the former needs more complicated equipment, and the latter is subject to the restriction in casting structure and space.
Summary of the invention
Problem and shortage based on above-mentioned existence, the utility model has designed a kind of filter for piston casting.
The technical solution of the utility model is: impurity and oxide while utilizing filter to remove cast in liquid metal, promote the mobility of casting liquid, improve its mold-filling capacity, when increasing piston dense structure property, guarantee its strength and stiffness scope, make piston there is good mechanical property, thereby improve its reliability.In liquid alloy, all elements that can form high-melting-point field trash all can fall low-alloyed mobility, and impurity and oxide all can be in the mobility that weakens in varying degrees liquid alloy, therefore should be filtered removal accordingly.By filtering, the impurity of removing and oxide no longer participate in the formation of foundry goods body, make castings material even compact on the one hand, also avoid on the other hand occurring local reinforcement and stiffened, for follow-up machining or the heat treatment of piston facilitates.
Based on above principle, the filter for piston casting of design partly consists of the outer mould body 1 of piston, sprue gate 2, filter screen 3, filter screen alignment pin 4, inner chamber 5 and rising head 6 etc., and wherein the outer mould body 1 of piston comprises front mould body 8 and rear mould body 7.Filter screen 3 is arranged on the inwall at the sprue gate 2 of mould body 1 outside piston, there is a pair of diameter to be slightly larger than the filter screen alignment pin 4 of the mesh length of side or diameter approaching on half front mould body 8 inwalls of cast channel height, be used for the location of filter screen 3 and fix, require filter screen edge to exceed channel cross-section, filter screen can be clamped during matched moulds so simultaneously.Filter screen will bear the impact of high temperature metal liquid in the course of work, and in order to ensure its reliability, the material that requires filter screen is resistant to elevated temperatures glass fibre.This outer leaching net be shaped as rectangle or square, size is 20mm * 50mm～50mm * 20mm, thickness is 0.2～0.8mm, filter screen top edge is 30～100mm apart from piston casting mouth distance from top.In order to reduce as far as possible filter screen, exist the flow resistance cause to increase, and consider the adequacy of filtration, mesh is designed to square or circular or the above-mentioned development figure that the length of side or diameter are 1～2mm.
Accompanying drawing explanation
Fig. 1 is piston casting filter.
Fig. 2 is screen pack scheme of installation in runner.
In figure, 1 is outer mould body, is 2 sprue gates, and 3 is filter screen, and 4 is filter screen alignment pin, and 5 is inner chamber, and 6 is rising head, and 7 is rear mould body, and 8 is front mould body.
The specific embodiment
Filter for piston casting of the present utility model partly consists of the outer mould body 1 of piston, sprue gate 2, filter screen 3, filter screen alignment pin 4, inner chamber 5 and rising head 6 etc., and wherein the outer mould body 1 of piston comprises front mould body 8 and rear mould body 7.Filter screen 3 is arranged on the inwall at the sprue gate 2 of mould body 1 outside piston, there is a pair of diameter to be slightly larger than the filter screen alignment pin 4 of mesh approaching on half front mould body 8 inwalls of cast channel height, be used for the location of filter screen 3 and fix, require filter screen edge to exceed channel cross-section, filter screen can be clamped during matched moulds so simultaneously.Filter screen will bear the impact of high temperature metal liquid in the course of work, and in order to ensure its reliability, the material that requires filter screen is resistant to elevated temperatures glass fibre.This outer leaching net be shaped as rectangle or square, size is about 20mm * 50mm～50mm * 20mm, thickness is 0.2～0.8mm, filter screen top edge is about 30～100mm apart from piston casting mouth distance from top.In order to reduce as far as possible filter screen, exist the flow resistance cause to increase, and consider the adequacy of filtration, mesh is designed to square or circular or the above-mentioned development figure that the length of side or diameter are 1～2mm.
During piston casting, open forward and backward mould body, get on the filter screen alignment pin 4 that a slice filter screen 3 is sleeved on inwall, press and make its limit, left and right sides be close to wall.Close forward and backward mould body locking, now screen pack is clamped by forward and backward die body.By sprue gate 2, toward die body perfusion liquid metal, fluid is dirty in filter screen elimination impurity and oxide at Action of Gravity Field, and after this with in the full die cavity body of better mobile performance, and extremely finally casting liquid overflows from rising head, and cast finishes.Finally, open mould, with alligator pliers, take out Piston Casting.So move in circles, just can produce expeditiously high-quality piston.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713868.7U CN203751244U (en) | 2013-11-14 | 2013-11-14 | Filter device for pouring piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713868.7U CN203751244U (en) | 2013-11-14 | 2013-11-14 | Filter device for pouring piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203751244U true CN203751244U (en) | 2014-08-06 |
Family
ID=51246555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320713868.7U Expired - Fee Related CN203751244U (en) | 2013-11-14 | 2013-11-14 | Filter device for pouring piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203751244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624972A (en) * | 2013-11-14 | 2015-05-20 | 安徽省恒泰动力科技有限公司 | A filter device for plunger pouring |
-
2013
- 2013-11-14 CN CN201320713868.7U patent/CN203751244U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624972A (en) * | 2013-11-14 | 2015-05-20 | 安徽省恒泰动力科技有限公司 | A filter device for plunger pouring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20151114 |
|
| EXPY | Termination of patent right or utility model |