CN203992259U - The running channel of thin-wall ductile iron piston - Google Patents
The running channel of thin-wall ductile iron piston Download PDFInfo
- Publication number
- CN203992259U CN203992259U CN201420480870.9U CN201420480870U CN203992259U CN 203992259 U CN203992259 U CN 203992259U CN 201420480870 U CN201420480870 U CN 201420480870U CN 203992259 U CN203992259 U CN 203992259U
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- China
- Prior art keywords
- ingate
- cross gate
- cross
- piston
- communicated
- 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
- 229910001141 Ductile iron Inorganic materials 0.000 title claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 36
- 229910052742 iron Inorganic materials 0.000 abstract description 18
- 239000000463 material Substances 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 238000005406 washing Methods 0.000 abstract description 3
- 239000004576 sand Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007528 sand casting Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a kind of running channel of thin-wall ductile iron piston, the bottom side of sprue and the outside of cross gate that longitudinally arrange are communicated with, cross gate in the form of a ring, and the cross section of cross gate is wide at the top and narrow at the bottom trapezoidal, the upper surface of cross gate is provided with core, the inside of core is provided with the ingate described in some roads, and ingate described in some roads is uniform is interrupted ring-type; The cross section of each ingate is up-narrow and down-wide trapezoidal, and the lower surface of ingate is communicated with the upper surface of cross gate, and the upper surface of ingate is communicated with the end face of piston die cavity.The utility model adopts bottom pouring type pouring, ingate is divided into eight roads, both slowed down flowing molten iron washing away core, stop various molten iron oxidation skins and foreign material to pass through, avoid again the contact area of molten iron and whole foundry goods overheated, cause the shrinkage porosite of foundry goods, can make molten iron steadily and rapidly fill type, effect is remarkable.
Description
Technical field
The utility model relates to casting technology field, relates in particular to a kind of running channel of thin-wall ductile iron piston.
Background technology
Piston is the movement parts of most critical on internal combustion engine, and it bears alternate load repeatedly under HTHP, is called as the heart of internal combustion engine.Therefore very high to the quality requirement of thin-wall ductile iron piston, compactness will be got well, and must not have tiny shrinkage cavity and other defect.
No matter be grey cast-iron, or spheroidal graphite cast-iron have sprue, cross gate and ingate.Can select open, closed or semi-open semi-enclosed according to the feature of foundry goods.The running gate system scheme that these are valuable, the Foundry Production for all trades and professions by wide model.
Except hot investment casting, in general sand casting, high temperature liquid iron must contact with the air in sand mold die cavity, contacts with the coating of sand mold, contacts with the molding sand of sand mold.Thin-wall ductile iron piston was all by the molten iron after spheroidising in the past, the cast of employing top pouring type, namely cast gate has been located on the excircle of thin-wall ductile iron piston, certainly will make like this molten iron flowering splash, cause foundry goods to occur pore, sand holes, slag inclusion, be oxidized the casting flaws such as serious, cannot reach compactness good, must not have the requirement of tiny shrinkage cavity and other defect.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of running channel of thin-wall ductile iron piston, eliminates cast gate is located to the above-mentioned defect producing on the excircle of thin-wall ductile iron piston.
For solving the problems of the technologies described above, the technical solution of the utility model is: the running channel of thin-wall ductile iron piston, comprise sprue, cross gate and ingate, the bottom side of sprue and the outside of cross gate that longitudinally arrange are communicated with, in the form of a ring, and the cross section of cross gate is wide at the top and narrow at the bottom trapezoidal to cross gate, and the upper surface of cross gate is provided with core, the inside of core is provided with the ingate described in some roads, and ingate described in some roads is uniform is interrupted ring-type; The cross section of each ingate is up-narrow and down-wide trapezoidal, and the lower surface of ingate is communicated with the upper surface of cross gate, and the upper surface of ingate is communicated with the end face of piston die cavity.
Described ingate Wei Ba road.
The utility model adopts bottom pouring type pouring, ingate is divided into eight roads, both slowed down flowing molten iron washing away core, stop various molten iron oxidation skins and foreign material to pass through, overheated and the shrinkage porosite of causing foundry goods of the contact area of having avoided again molten iron and whole foundry goods, can make molten iron steadily and rapidly fill type, effect is remarkable; The piston (containing piston skirt) of all size that my company produces is all implemented with this kind of casting program, and all foundry goods compactness obtaining is fabulous, more than nodularization rate all reaches secondary; Produce all kinds of spherical iron piston year fusing amounts and reach more than 1700 tons, foundary loss rate is only below 5%.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model ingate top view.
Wherein: 1. sprue, 2. cross gate, 3. core, 4. ingate, 5. piston die cavity.
Detailed description of the invention
As shown in Figure 1 and Figure 2; the running channel of thin-wall ductile iron piston; comprise sprue 1, cross gate 2 and ingate 4; bottom side of the sprue 1 longitudinally arranging is communicated with the outside of cross gate 2, in the form of a ring, and the cross section of cross gate 2 is wide at the top and narrow at the bottom trapezoidal to cross gate 2; facilitate molding; the upper surface of cross gate 2 is provided with core 3, the inside of core 3 is provided with eight road ingates 4, and Zhe Ba road ingate 4 is uniform is interrupted ring-type; Each ingate 4 is arcuation, and the cross section of ingate 4 is up-narrow and down-wide trapezoidal, can effectively stop various molten iron oxidation skins and foreign material to pass through, less with the contact area of piston, easily knocks off piston is separated with ingate 4; The lower surface of ingate 4 is communicated with the upper surface of cross gate 2, and the upper surface of ingate 4 is communicated with the end face of piston die cavity 5; When cast, molten iron enters piston die cavity 5 by sprue 1, cross gate 2, ingate 4 successively; Ingate 4 is divided into eight roads, and per pass ingate 4 is all less with the contact area of piston, makes the contact area of molten iron and whole piston can be not overheated, can not cause piston to occur shrinkage porosite, slowed down flowing molten iron to the washing away of core, can make the molten iron steadily and rapidly fill type, effect is remarkable; The piston of all size that my company produces is all implemented with this kind of casting program containing piston skirt, the all foundry goods compactness obtaining is fabulous, more than nodularization rate all reaches secondary, produce all kinds of spherical iron piston year fusing amounts and reach more than 1700 tons, foundary loss rate is only below 5%.
The above; it is only preferably detailed description of the invention of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; be equal to replacement or changed according to the technical solution of the utility model and utility model design thereof, within all should being encompassed in protection domain of the present utility model.
Claims (2)
1. the running channel of thin-wall ductile iron piston, it is characterized in that: comprise sprue (1), cross gate (2) and ingate (4), the bottom side of the sprue (1) longitudinally arranging is communicated with the outside of cross gate (2), cross gate (2) in the form of a ring, and the cross section of cross gate (2) is wide at the top and narrow at the bottom trapezoidal, the upper surface of cross gate (2) is provided with core (3), the inside of core (3) is provided with the ingate (4) described in some roads, and ingate (4) described in some roads is uniform is interrupted ring-type; The cross section of each ingate (4) is up-narrow and down-wide trapezoidal, the lower surface of ingate (4) is communicated with the upper surface of cross gate (2), and the upper surface of ingate (4) is communicated with the end face of piston die cavity (5).
2. the running channel of thin-wall ductile iron piston according to claim 1, is characterized in that: described ingate (4) Wei Ba road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420480870.9U CN203992259U (en) | 2014-08-23 | 2014-08-23 | The running channel of thin-wall ductile iron piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420480870.9U CN203992259U (en) | 2014-08-23 | 2014-08-23 | The running channel of thin-wall ductile iron piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203992259U true CN203992259U (en) | 2014-12-10 |
Family
ID=52032324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420480870.9U Expired - Fee Related CN203992259U (en) | 2014-08-23 | 2014-08-23 | The running channel of thin-wall ductile iron piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203992259U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550750A (en) * | 2015-01-28 | 2015-04-29 | 安庆雅德帝伯活塞有限公司 | Ultra-thin piston mold runner |
| CN105251944A (en) * | 2015-11-26 | 2016-01-20 | 南车戚墅堰机车有限公司 | Ductile cast iron stable-pressure box casting device for internal combustion engine |
| CN110216244A (en) * | 2019-04-20 | 2019-09-10 | 福建大通互惠精密铸造有限公司 | Casting tool for check valve body steel casting and manufacturing process thereof |
| TWI898312B (en) * | 2023-11-08 | 2025-09-21 | 國立臺灣海洋大學 | Three-piece mold runner system |
-
2014
- 2014-08-23 CN CN201420480870.9U patent/CN203992259U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550750A (en) * | 2015-01-28 | 2015-04-29 | 安庆雅德帝伯活塞有限公司 | Ultra-thin piston mold runner |
| CN105251944A (en) * | 2015-11-26 | 2016-01-20 | 南车戚墅堰机车有限公司 | Ductile cast iron stable-pressure box casting device for internal combustion engine |
| CN110216244A (en) * | 2019-04-20 | 2019-09-10 | 福建大通互惠精密铸造有限公司 | Casting tool for check valve body steel casting and manufacturing process thereof |
| CN110216244B (en) * | 2019-04-20 | 2024-05-31 | 福建大通互惠精密铸造有限公司 | A casting mold for a check valve body steel casting and its manufacturing process |
| TWI898312B (en) * | 2023-11-08 | 2025-09-21 | 國立臺灣海洋大學 | Three-piece mold runner system |
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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: 20141210 Termination date: 20170823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |