CN107537976A - A kind of method for casting piston and its casting mould - Google Patents
A kind of method for casting piston and its casting mould Download PDFInfo
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- CN107537976A CN107537976A CN201610476714.9A CN201610476714A CN107537976A CN 107537976 A CN107537976 A CN 107537976A CN 201610476714 A CN201610476714 A CN 201610476714A CN 107537976 A CN107537976 A CN 107537976A
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Abstract
The invention discloses a kind of method for casting piston and its casting mould, casting pattern is set to individual layer arrangement by it, and casting pattern is multiple, multiple casting pattern ordered arrangements, down gate is located at the center of casting pattern, is connected between down gate and each casting pattern by multiple running channels；Each casting pattern prevents the shrinkage depression of casting pattern using the method for flanging feeding, the method for the flanging feeding, refers to that being provided with a rising head between per two neighboring casting pattern carries out feeding；The annular protrusion for distinguishing each product specification is equipped with the end face of the casting pattern；The rising head upper surface is equipped with the strip projected parts for distinguishing product specification.Beneficial effects of the present invention are：Production method of the present invention is simple, production efficiency is high, and casting cooling velocity is uniform, casting hardness uniformity is high, and is equipped with projection on casting pattern and rising head, can simply distinguish the specification of each product, facilitate the management of foundry returns.
Description
Technical field
The present invention relates to casting mould technical field, more particularly to a kind of production method is simple, production efficiency is high, the method for casting piston and its casting mould that casting cooling velocity is uniform, casting hardness uniformity is high.
Background technology
Casting mould refers to obtain the planform of part, the material being easily molded with other in advance makes the planform of part, then mould is put into sand mold again, then a cavity as design of part size is formed in sand mold, pour into a mould mobility liquid in the cavity again, can just be formed and the duplicate part of mold shape structure after liquid cooling solidification.
Current domestic cast pistons be bilayer model method scheme, as shown in Figure 1, it includes rising head 01, cast model 02, mud core dividing plate 03, its cast model uses two layers of setting up and down, mud core dividing plate 03 is provided between two layers of cast model, although this scheme method yield rate is high, but still many shortcomings be present：
1st, because the cast model in single mode is more so that the cooling velocity among model and edge is uneven, and the hardness of cast form of final easily generation casting is uneven.
2nd, because this scheme needs lower core, it is therefore necessary to increase the process that one of core makes, and make core under every mould and also reduce operating efficiency, while the ratio for the defects of casting produces sand holes can be also improved using core.
3rd, because this scheme must use the feeding scheme of deep cast gate, therefore surface must not only be wasted time and energy through grinder buffing after the blank dead head separation that goes out of final production, and caused a large amount of dust also results in very big influence on environment.
Further, since product requirement chemical composition difference is larger, due to being provided with multiple casting in every mould, if do not taken special measure to easily cause product batch mixing.The method that other producers are mainly utilized in die face quarter cloudy word is distinguish between, and the method after long-term use, is easy to carry molding sand secretly in groove of carving characters, causes sand holes defect；If being not added with any sign on foundry returns simultaneously, foundry returns difficult management is will also result in, the product quality in later stage is impacted.
As fully visible, need a kind of new method for casting piston at present, with simplified production method, improve production efficiency, make casting cooling velocity uniformly, casting hardness uniformity improve, and can simply distinguish the specification of each product, facilitate the management of foundry returns.
The content of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of method for casting piston and its casting mould are provided, its production method is simple, production efficiency is high, and casting cooling velocity is uniform, casting hardness uniformity is high, and the specification of each product can be simply distinguished, facilitate the management of foundry returns.
To solve problems of the prior art, the concrete technical scheme that the present invention uses is：
A kind of method for casting piston, casting pattern is set to individual layer and arranged by it, and casting pattern is multiple, multiple casting pattern ordered arrangements, and down gate is located at the center of casting pattern, is connected between down gate and each casting pattern by multiple running channels；Each casting pattern prevents the shrinkage depression of casting pattern using flanging feeding.
Preferably, the method for the flanging feeding, refer to be provided with a rising head between per two neighboring casting pattern（Running channel）Carry out feeding.
It is further preferred that being equipped with the annular protrusion for distinguishing each product specification on the end face of the casting pattern, different annular protrusions can be set in different products.
Still further preferably, the rising head upper surface is equipped with the strip projected parts for distinguishing product specification, and different materials can set different strip projected parts.
Present invention also offers a kind of casting for piston mould, it includes template, is located at multiple casting patterns of template bottom in order side by side, the casting pattern is arranged for individual layer, the casting pattern is threadingly attached in template, the center of the template is provided with down gate, is connected between the multiple casting pattern and down gate by multiple running channels.
Preferable scheme, the multiple running channel（Rising head）Top be equipped with strip projected parts for distinguishing product specification.
Further preferred scheme, the annular protrusion for distinguishing each product specification is equipped with the end face of the casting pattern.
Scheme still more preferably, the steady mould post to be played a supportive role to mould is equipped with the bottom corner of the template.
Scheme still further preferably, it is bolt connection between the casting pattern and its running channel.
Multiple steam vents for casting to be exhausted are provided with inside the template.
By using such scheme, compared with prior art, it has technical effect that for a kind of method for casting piston and its casting mould of the invention：
1st, the present invention postpones cast model single layer cloth, makes the cooling velocity of all casting basically identical, the hardness of cast form uniformity of casting greatly improves.
2nd, the process that the present invention makes due to reducing one core, also without lower core in production process, method and step is simpler, substantially increases production efficiency.
3rd, after using flanging feeding so that casting and dead head are after barrel cleaning and hammer tap, substantially it is ensured that the appearance requirement of casting, without carrying out grinder buffing again, simplifies method, improve production efficiency；And after the area of flanging is computed, the feeding effect of casting is not had much affect yet in practice.
4th, cast model is provided with annular bar, and it solves the problems, such as the differentiation of product, also solves and carves positive word to infringement of the later product cutting to cutter.
5th, rising head is provided with strip projection, and during foundry returns, mark thereon also efficiently solves each unmanageable problem of specification foundry returns, and various materials are unlikely to obscure when making to melt down, and the product quality in later stage will not be impacted.
Brief description of the drawings
Fig. 1 is method for casting piston schematic diagram in the prior art；
Fig. 2 is a kind of method for casting piston schematic diagram of the present invention；
Fig. 3 is the structural representation of the Piston Model of the present invention；
Fig. 4 is the sectional schematic diagram of the dead head of the present invention；
Fig. 5 is the front view of casting for piston mould in the embodiment of the present invention；
Fig. 6 is the side view of casting for piston mould in the embodiment of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to instantiation and referring to the drawings, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit the scope of the present invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring idea of the invention.
As shown in Figures 2 to 6, a kind of method for casting piston, casting pattern is set to individual layer and arranged by it, and multiple casting pattern ordered arrangements, down gate is located at the center of casting pattern, is connected between down gate and each casting pattern by multiple running channels；Each casting pattern prevents the shrinkage depression of casting pattern using the method for flanging feeding, the method for the flanging feeding, refers to that being provided with a rising head 2 between per two neighboring casting pattern 1 carries out feeding.The annular protrusion 3 for distinguishing each product specification is equipped with the end face of the casting pattern 1, different annular protrusions can be set in different products, as shown in Figure 3.The upper surface of rising head 2 is equipped with the strip projected parts 4 for distinguishing product specification, and different materials can set different strip projected parts, as shown in Figure 4.
As shown in Figure 5 and Figure 6, present invention also offers a kind of casting for piston mould, in the present embodiment, so that every mould goes out 40 products as an example, it includes template 5, is located at multiple casting patterns 1 of template bottom in order side by side, is bolt connection between the casting pattern and its running channel.The casting pattern 1 is arranged for individual layer, the casting pattern 1 is threadingly attached in template 5, the lower central of the template 1 is provided with down gate 10, the top of the template 1 is provided with down gate seat 12, is connected between the multiple casting pattern 1 and down gate 10 by multiple running channels, in figure, 6 be running channel 1,7 be that running channel 2,8 is that running channel 3,9 is running channel 4.The running channel 1, running channel 2, the top of running channel 3 and running channel 4 are equipped with the strip projected parts for distinguishing product specification, and its section is as shown in Figure 4.The annular protrusion for distinguishing each product specification is equipped with the end face of the casting pattern 1, as shown in Figure 3.The steady mould post 11 to be played a supportive role to mould is equipped with the bottom corner of the template 5.Multiple steam vents for casting to be exhausted are additionally provided with inside the template 5.
The foregoing is merely illustrative of the preferred embodiments of the present invention, the protection domain being not intended to limit the invention, and within the spirit and principles of the invention, any modification for being made, equivalent substitution, is all contained within protection scope of the present invention.
Claims (10)
1. a kind of method for casting piston, it is characterised in that casting pattern is set to individual layer arrangement, casting pattern is multiple, multiple casting pattern ordered arrangements, and down gate is located at the center of casting pattern, is connected between down gate and each casting pattern by multiple running channels；Each casting pattern prevents the shrinkage depression of casting pattern using flanging feeding.
A kind of 2. method for casting piston according to claim 1, it is characterised in that：The flanging feeding refers to that being provided with a rising head between per two neighboring casting pattern carries out feeding.
A kind of 3. method for casting piston according to claim 1, it is characterised in that：The annular protrusion for distinguishing each product specification is equipped with the end face of the casting pattern.
A kind of 4. method for casting piston according to claim 2, it is characterised in that：The rising head upper surface is equipped with the strip projected parts for distinguishing product specification.
A kind of 5. casting for piston mould, it is characterized in that, it includes template, is located at multiple casting patterns of template bottom in order side by side, the casting pattern is arranged for individual layer, the casting pattern is threadingly attached in template, the center of the template is provided with cast gate, is connected between the multiple casting pattern and cast gate by multiple running channels.
6. a kind of casting for piston mould according to claim 5, it is characterised in that the strip projected parts for distinguishing product specification are equipped with above the multiple running channel.
7. a kind of casting for piston mould according to claim 5, it is characterised in that the annular protrusion for distinguishing each product specification is equipped with the end face of the casting pattern.
8. a kind of casting for piston mould according to claim 5, it is characterised in that the steady mould post to be played a supportive role to mould is equipped with the bottom corner of the template.
9. a kind of casting for piston mould according to claim 5, it is characterised in that be bolt connection between the casting pattern and its running channel.
10. a kind of casting for piston mould according to claim 5, it is characterised in that be provided with multiple steam vents for casting to be exhausted inside the template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476714.9A CN107537976A (en) | 2016-06-27 | 2016-06-27 | A kind of method for casting piston and its casting mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476714.9A CN107537976A (en) | 2016-06-27 | 2016-06-27 | A kind of method for casting piston and its casting mould |
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| Publication Number | Publication Date |
|---|---|
| CN107537976A true CN107537976A (en) | 2018-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610476714.9A Pending CN107537976A (en) | 2016-06-27 | 2016-06-27 | A kind of method for casting piston and its casting mould |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2070564A (en) * | 1932-01-13 | 1937-02-16 | Daniel M Jones | Founding device |
| CN2336892Y (en) * | 1998-07-02 | 1999-09-08 | 郭述林 | Grinding section casting mould |
| CN2531900Y (en) * | 2001-09-24 | 2003-01-22 | 安徽省宁国市耐磨材料总厂 | High chromium alloy casting microsphere moulding plate and sand box |
| CN102876962A (en) * | 2012-09-05 | 2013-01-16 | 石家庄金刚凯源动力科技有限公司 | Method for manufacturing bainite ductile cast iron piston ring |
| CN203887165U (en) * | 2014-06-05 | 2014-10-22 | 芜湖永达科技有限公司 | Mold for casting plate-shaped multi-cylindrical castings |
| CN204770481U (en) * | 2015-07-09 | 2015-11-18 | 肇庆精通机械有限公司 | Piston foundry goods the gating system |
| CN205904391U (en) * | 2016-06-27 | 2017-01-25 | 上海兆丰制冷配件有限公司 | Piston casting mould |
-
2016
- 2016-06-27 CN CN201610476714.9A patent/CN107537976A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2070564A (en) * | 1932-01-13 | 1937-02-16 | Daniel M Jones | Founding device |
| CN2336892Y (en) * | 1998-07-02 | 1999-09-08 | 郭述林 | Grinding section casting mould |
| CN2531900Y (en) * | 2001-09-24 | 2003-01-22 | 安徽省宁国市耐磨材料总厂 | High chromium alloy casting microsphere moulding plate and sand box |
| CN102876962A (en) * | 2012-09-05 | 2013-01-16 | 石家庄金刚凯源动力科技有限公司 | Method for manufacturing bainite ductile cast iron piston ring |
| CN203887165U (en) * | 2014-06-05 | 2014-10-22 | 芜湖永达科技有限公司 | Mold for casting plate-shaped multi-cylindrical castings |
| CN204770481U (en) * | 2015-07-09 | 2015-11-18 | 肇庆精通机械有限公司 | Piston foundry goods the gating system |
| CN205904391U (en) * | 2016-06-27 | 2017-01-25 | 上海兆丰制冷配件有限公司 | Piston casting mould |
Non-Patent Citations (3)
| Title |
|---|
| 朱守琴等: "湿型铸造灰铸铁活塞工艺研究"", 《金属加工热加工》 * |
| 魏兵，等: "《铸件均衡凝固技术及其应用》", 30 October 1998, 机械工业出版社 * |
| 黄乃瑜等: "《中国模具设计大典》", 31 January 2003, 江西科学技术出版社 * |
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Application publication date: 20180105 |