CN102145378B - Pouring and feeding system of cylinder cover - Google Patents
Pouring and feeding system of cylinder cover Download PDFInfo
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- CN102145378B CN102145378B CN 201110066797 CN201110066797A CN102145378B CN 102145378 B CN102145378 B CN 102145378B CN 201110066797 CN201110066797 CN 201110066797 CN 201110066797 A CN201110066797 A CN 201110066797A CN 102145378 B CN102145378 B CN 102145378B
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- cylinder cover
- cylinder head
- open riser
- cover plate
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Abstract
The invention discloses a pouring and feeding system of a cylinder cover, which has small impact force and strong feeding property. The pouring and feeding system comprises an inner pop gate, a U-shaped cross gate, a downsprue and a top open riser. The inner pop gate enables the dispersed impact force of liquid flow to be small, prevents the wall thickness of the cylinder cover from being oversize due to deformation caused by large impact force of a core made of resin sand, and carries out solidifying and feeding operation from bottom to top to ensure that the tissues of the cylinder cover are dense. The top open riser plays a role in exhausting gas before a mold cavity is full of molten iron, and hot molten iron entering from the inner pop gate after the mold cavity is full of the molten iron enters the top open riser, thereby being favorable for feeding the hot junction part of the cylinder cover under the top open riser, preventing the thick wall of the cylinder cover from forming shrinkage cavity and shrinkage porosity, and effectively preventing the occurrence of leakage of the cylinder cover.
Description
Technical field
The present invention relates to the little and strong cylinder head casting compencation system of feeding of a kind of casting technique measure setting, especially impulsive force.
Background technology
At present, for casting high-power diesel engine cylinder head, owing to be the vermicular cast iron material, the volume of resin sand fuse accounts for 60% of cylinder head volume, the many and complex structure of fuse; Cylinder head wall thickness dimension 10-75 millimeter, the thickness of wall thickness differs bigger, causes wall thickness dimension overproof or heavy wall shrinkage cavity and shrinkage porosite easily.It is particularly important that the casting cylinder cover science arranges the casting compencation system, do not make the overproof and shrinkage cavity shrinkage porosity of cylinder head wall thickness dimension because the setting of casting compencation system is scientific and reasonable, causes a large amount of scrapping.
Summary of the invention
In order to overcome the overproof and shrinkage cavity shrinkage porosity of casting cylinder cover wall thickness dimension, the invention provides a kind of cylinder head casting compencation system, this casting compencation system molten iron impulsive force is little and feeding is strong, makes the qualified and heavy wall of cylinder head wall thickness dimension not have shrinkage cavity shrinkage porosity.
The technical solution adopted for the present invention to solve the technical problems is: cylinder head casting compencation system is made up of a plurality of cylindrical ingates that drench with rain, U-shaped cross gate, sprue, top open riser, the a plurality of cylindrical ingates that drench with rain of two rows on the cover board are set, on the cover board the cylindrical top, the inboard thermojunction place of ingate that drenches with rain arranges open riser lower part, two tops, and cover plate covers in the corresponding groove in fuse top that intact various resin sands are made under cylinder head sand mold nowel; The U-shaped cross gate that is connected with a plurality of cylindrical ingates that drench with rain of two rows on the cover plate is set in cylinder head sand mold top box, the longitudinal middle part position arranges sprue on the U-shaped cross gate, and the open riser top, two tops that is connected with the open riser lower part, two tops that arranges on the cover plate is set.The alignment pin location mould assembling of using with its moulding during the nowel mould assembling on the cylinder head sand mold.A plurality of cylindrical ingates that drench with rain make the liquid flow point impulsive force of loosing little, prevent from that fuse that resin sand is made is out of shape greatly because of impulsive force to cause the cylinder head wall thickness dimension overproof, and the interior molten iron of die cavity solidifies feeding from bottom to top, and that cylinder head is organized is fine and closely woven.The top open riser plays scavenging action before molten iron underfill die cavity, after molten iron was full of die cavity, the molten iron that newly charges into from the ingate that drenches with rain entered the top open riser, and feeding is solidified at the thermojunction place that is beneficial to cylinder head, prevents the shrinkage cavity of cylinder head heavy wall and shrinkage porosite.
The invention has the beneficial effects as follows, this cylinder head casting compencation system has prevented that the resin sand fuse is out of shape greatly because of impulsive force and has caused wall thickness dimension overproof and cause heavy wall shrinkage cavity and shrinkage porosite because of the riser feeding difference, effectively prevented the generation of cylinder head leakage problems, made cylinder head casting qualification rate improve more than 40%.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing is cylinder head casting compencation system construction drawing.
Fig. 1 is the A-A cutaway view of Fig. 2.
Fig. 2 is the B-B cutaway view of Fig. 1.
Among the figure 1, cylinder head sand mold nowel, 2, the cylinder head die cavity, 3, the cylindrical ingate that drenches with rain, 4, cover plate, 5, the U-shaped cross gate, 6, sprue, 7, cylinder head sand mold top box, 8, the top open riser, 9, the thermojunction place.
The specific embodiment
Accompanying drawing is the cylinder head casting compencation system construction drawing of 16V240 diesel engine.See in the accompanying drawing 1,2, descended the fuse of each phenol resin sand making at 16V240 cylinder head sand mold nowel (1) after, cover the cover plate of two top open risers (8) lower part that 8 cylindrical ingates that drench with rain (3) is set and is communicated with top, cylinder head thermojunction place (9) on cylinder head die cavity (2) in the corresponding groove, cover plate (4) is made of furan resin-sand.Be provided with the U-shaped cross gate (5) of sand mold nowel (1) relevant position at 16V240 cylinder head sand mold top box (7) and be communicated with 8 cylindrical ingates that drench with rain (3), the longitudinal middle part position arranges sprue (6) and is communicated with on U-shaped cross gate (5), and two top open risers (8) top that is communicated with two top open risers (8) lower part is set.Alignment pin with gas making cylinder cap sand mold (2) usefulness when 16V240 cylinder head sand mold nowel (1) and sand mold top box (7) mould assembling is located mould assembling.The molten iron of chemical combination lattice of wriggling is incorporated into sprue (6), U-shaped cross gate (5) from cup, molten iron is diverted to 8 cylindrical ingates that drench with rain (3) and enters cylinder head die cavity (2), the diffusing impulsive force of molten iron liquid flow point is little, preventing that the resin sand fuse is out of shape greatly because of impulsive force causes the cylinder head wall thickness dimension overproof, and the molten iron in cylinder head die cavity (2) solidifies feeding from bottom to top, and that cylinder head is organized is fine and closely woven.Top open riser (8) is at preceding scavenging action of molten iron underfill cylinder head die cavity (2), the heating molten steel that enters from the ingate that drenches with rain (3) after being full of cylinder head die cavity (2) charges in the top open riser (8), and the heating molten steel in the top open riser (8) is beneficial to does feeding when solidify at cylinder head thermojunction place.
Claims (1)
1. cylinder head casting compencation system, formed by cylindrical ingate, cover plate, U-shaped cross gate, sprue, top open riser, it is characterized in that: a plurality of cylindrical ingates that drench with rain of two rows on the cover board are set, at the cylindrical top, the inboard thermojunction place of ingate that drenches with rain of cover plate two rows open riser lower part, two tops are set; Cover plate covers in the corresponding recesses on the various fuses top that intact phenol resin sand is made under cylinder head sand mold nowel; The U-shaped cross gate that is connected with a plurality of cylindrical ingates that drench with rain of two rows on the cover plate is set in cylinder head sand mold top box, the longitudinal middle part position arranges sprue on the U-shaped cross gate, and the open riser top, top that is connected with open riser lower part, top on the cover plate is set; Described cover plate is made of furan resin-sand; The a plurality of cylindrical ingates that drench with rain of two rows are 8 on the described cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110066797 CN102145378B (en) | 2011-03-18 | 2011-03-18 | Pouring and feeding system of cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110066797 CN102145378B (en) | 2011-03-18 | 2011-03-18 | Pouring and feeding system of cylinder cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102145378A CN102145378A (en) | 2011-08-10 |
| CN102145378B true CN102145378B (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110066797 Active CN102145378B (en) | 2011-03-18 | 2011-03-18 | Pouring and feeding system of cylinder cover |
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| Country | Link |
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| CN (1) | CN102145378B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632198B (en) * | 2012-02-24 | 2014-02-19 | 陈硕 | Steel wire rope winding roller casting sand mould provided with open riser |
| CN103317121A (en) * | 2013-07-04 | 2013-09-25 | 辽宁卡斯特金属材料发展有限公司 | Low-pressure casting method of CT machine aluminum rotor |
| CN105880475B (en) * | 2016-06-21 | 2017-11-10 | 王仙寿 | Engine cylinder cover casting mould |
| CN107052266B (en) * | 2017-03-08 | 2020-01-21 | 南充市辉煌模具有限公司 | Casting method of complex thin-wall iron casting |
| CN108907104A (en) * | 2018-09-07 | 2018-11-30 | 无锡蠡湖增压技术股份有限公司 | A kind of molding casting mould of continuous feeding of casting |
| CN115090836A (en) * | 2022-06-07 | 2022-09-23 | 聊城新泺机械有限公司 | Method for solving shrinkage cavity and shrinkage porosity of cylinder cover by arranging riser sleeve in clay sand molding |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066557A (en) * | 2007-06-01 | 2007-11-07 | 镇江中船设备有限公司 | Process of casting cylinder head of diesel engine |
| CN101722277A (en) * | 2009-12-11 | 2010-06-09 | 沪东重机有限公司 | Method for casting cylinder cover of low-speed diesel for large-bore vessel |
| CN101844216A (en) * | 2010-05-18 | 2010-09-29 | 常州市宇杰机械有限公司 | Setting method for casting parting surface and casting head on cylinder head blank |
| CN202079246U (en) * | 2011-03-29 | 2011-12-21 | 陈硕 | Casting head for cast cylinder head |
-
2011
- 2011-03-18 CN CN 201110066797 patent/CN102145378B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066557A (en) * | 2007-06-01 | 2007-11-07 | 镇江中船设备有限公司 | Process of casting cylinder head of diesel engine |
| CN101722277A (en) * | 2009-12-11 | 2010-06-09 | 沪东重机有限公司 | Method for casting cylinder cover of low-speed diesel for large-bore vessel |
| CN101844216A (en) * | 2010-05-18 | 2010-09-29 | 常州市宇杰机械有限公司 | Setting method for casting parting surface and casting head on cylinder head blank |
| CN202079246U (en) * | 2011-03-29 | 2011-12-21 | 陈硕 | Casting head for cast cylinder head |
Non-Patent Citations (2)
| Title |
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| 蠕虫状石墨铸铁气缸盖的铸造;颜源远;《机械工人.热加工》;19820630(第6期);24-27 * |
| 颜源远.蠕虫状石墨铸铁气缸盖的铸造.《机械工人.热加工》.1982,(第6期),24-27. |
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| CN102145378A (en) | 2011-08-10 |
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Owner name: STATE GRID SHANGHAI ELECTRIC POWER COMPANY Free format text: FORMER OWNER: CHEN SHUO Effective date: 20131231 Owner name: SHANGHAI ANYAN INFORMATION TECHNOLOGY CO., LTD. Effective date: 20131231 |
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| CB03 | Change of inventor or designer information |
Inventor after: Liu Jiafeng Inventor after: Chen Shuo Inventor after: Ni Zhenhua Inventor after: Chen Zhijia Inventor after: Qin Feng Inventor after: Jiu Zelin Inventor after: Zeng Tao Inventor before: Liu Jiafeng Inventor before: Chen Shuo |
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Free format text: CORRECT: ADDRESS; FROM: 310011 HANGZHOU, ZHEJIANG PROVINCE TO: 200002 HUANGPU, SHANGHAI Free format text: CORRECT: INVENTOR; FROM: LIU JIAFENG CHEN SHUO TO: LIU JIAFENG CHEN SHUO NI ZHENHUA CHEN ZHIJIA QINFENG MIAO ZELIN CENG TAO |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131231 Address after: 200002 Nanjing East Road, Shanghai, No. 181, No. Patentee after: State Grid Shanghai Municipal Electric Power Company Patentee after: Shanghai Anyan Information Technology Co., Ltd. Address before: 310011, Zhejiang, Hangzhou Gongshu District 10000 Huacheng 1, Room 301 Patentee before: Chen Shuo |