CN102974799A - Method for solving shrinkage blowholes inside large and thick parts of die casting - Google Patents
Method for solving shrinkage blowholes inside large and thick parts of die casting Download PDFInfo
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- CN102974799A CN102974799A CN2012104673374A CN201210467337A CN102974799A CN 102974799 A CN102974799 A CN 102974799A CN 2012104673374 A CN2012104673374 A CN 2012104673374A CN 201210467337 A CN201210467337 A CN 201210467337A CN 102974799 A CN102974799 A CN 102974799A
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- die casting
- inserts
- large part
- thick large
- sbrinkage blowhole
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Abstract
The invention discloses a method for solving the shrinkage blowholes inside the large and thick parts of a die casting, and the method is characterized by consisting of the following steps that an insert is die cast and inlaid at a part on the die casting at which a hole needs to be processed when a blank is produced, then the hole is processed in the axis direction of the insert, so that the shrinkage blowholes which appear when the holes are processed at the thick parts of the die casting can be reduced; and the insert is made of a rolled or stretched material the same as the die casting material of the blank. According to the method, because the insert is die cast and inlaid in the die casting when the blank is produced, the problem of the shrinkage blowholes can be fully solved when the die casting is die cast through the method and the holes are processed, and the product strength and the appearance can meet relevant requirements. The method has a simple process, the quality of a manufactured product is good, the conformity rate is high, the cost is low, and large-scale production and application are convenient.
Description
Technical field
The present invention relates to use inlaying process to solve sbrinkage blowhole appears in the thick large part processing of die casting when portalling problem.
Background technology
Because the particularity of common extrusion process, the sbrinkage blowhole of the thick large inside of die casting is a very scabrous difficult problem always.And need to process when portalling at these positions, these sbrinkage blowholes just are easy to be exposed to this hole inwall (seeing Fig. 1 and Fig. 2), and make product rejection.Even pre-manufactured hole can be made in the position that has, but the size of pre-manufactured hole, the degree of depth and pattern draft size also will directly affect the size of its allowance, also have product about 10% owing to the exposure of sbrinkage blowhole is scrapped.
Summary of the invention
The technical problem to be solved in the present invention is: be directed to the deficiencies in the prior art, provide a kind of and solve the method for the inner sbrinkage blowhole of the thick large part of die casting with inlaying process, solve the sbrinkage blowhole that when the thick large part processing of die casting is portalled, occurs and be exposed to the problem that this hole inwall causes product rejection.
In order to reach the foregoing invention purpose, the technical solution used in the present invention is: a kind of method that solves the inner sbrinkage blowhole of the thick large part of die casting with inlaying process is provided, it is characterized in that, the step that comprises is: when blank is produced an inserts pressure casting inlay is needed to process the position of portalling at die casting, portal in the processing of inserts axis direction again, thereby reduce the sbrinkage blowhole that occurs when the thick large part processing of die casting is portalled; Described inserts is to be made by the rolling or expanded material identical with the rough casting material.
In the method with the inner sbrinkage blowhole of the thick large part of inlaying process solution die casting provided by the present invention, the locate mode of described inserts in die casting is: inserts is provided with cylindrical wisp, during die casting cylindrical wisp packed in the first locating hole of compression mod into the location, position of realizing inserts.
In the method with the inner sbrinkage blowhole of the thick large part of inlaying process solution die casting provided by the present invention, the locate mode of described inserts in die casting is: compression mod arranges alignment core, the second locating hole is set on the inserts, the second locating hole with inserts during die casting is sleeved on the alignment core of compression mod, realizes the location, position of inserts.
In the method with the inner sbrinkage blowhole of the thick large part of inlaying process solution die casting provided by the present invention, described inserts is cylindrical insert, and the excircle of cylindrical insert is provided with and makes this inserts not produce cannelure and the flat side of radial-play and circumference rotation.
In the method with the inner sbrinkage blowhole of the thick large part of inlaying process solution die casting provided by the present invention, described cannelure is set to two.
In the method with the inner sbrinkage blowhole of the thick large part of inlaying process solution die casting provided by the present invention, described inserts is hexagonal prism shape inserts, and the excircle of hexagonal prism shape inserts is provided with the cannelure that makes this inserts not produce play.
In the method with the inner sbrinkage blowhole of the thick large part of inlaying process solution die casting provided by the present invention, described cannelure is set to three.
In sum, the method that solves the inner sbrinkage blowhole of the thick large part of die casting with inlaying process provided by the invention by when blank is produced with an inserts pressure casting inlay in die casting, the foundry goods that goes out through this method die casting, just solved the problem of sbrinkage blowhole fully when reprocessing out the hole that needs, and product strength and outward appearance can both reach requirement.Method technique of the present invention is simple, the superior product quality that makes, and qualification rate is high, and is with low cost, is convenient to large-scale production and application.
Description of drawings
Fig. 1 is for adopting the front cutaway view of die casting processing of traditional extrusion process.
Die casting the cutaway view thick large part processing portal after of Fig. 2 for adopting traditional extrusion process.
Fig. 3 for the present invention-embodiment 1 provide process than aperture the time the structural representation of the locate mode of inserts in compression mod.
Fig. 4 for the present invention-embodiment 1 provide process than macropore the time the structural representation of the locate mode of inserts in compression mod.
Fig. 5 processes structural representation than the die casting behind the aperture for what the present invention-embodiment 1 provided.
Fig. 6 processes structural representation than the die casting behind the macropore for what the present invention-embodiment 1 provided.
Fig. 7 for the present invention-embodiment 2 provide process than aperture the time the structural representation of the locate mode of inserts in compression mod.
Fig. 8 for the present invention-embodiment 2 provide process than macropore the time the structural representation of the locate mode of inserts in compression mod.
Fig. 9 processes structural representation than the die casting behind the macropore for what the present invention-embodiment 2 provided.
Figure 10 processes structural representation than the die casting behind the macropore for what the present invention-embodiment 2 provided.
Wherein, 1, compression mod; 2, cylindrical insert; 3, die casting; 4, cylindrical wisp; 5, the first locating hole; 6, cannelure; 7, flat side; 8, the second locating hole; 9, alignment core; 10, hexagonal prism shape inserts.
The specific embodiment
Below in conjunction with specific embodiment the specific embodiment of the present invention is done and to be described in detail:
Embodiment 1
Such as Fig. 3 and shown in Figure 5, when needs when die casting 3 processes than aperture (below the ￠ 5mm), cylindrical insert 2 bottoms a cylindrical wisp 4 is set, again cylindrical wisp 4 is packed in the first locating hole 5 in the compression mod 1, carry out die casting, this cylindrical insert 2 is embedded in the die casting 3, after die casting 3 depannings, the cylindrical wisp 4 that will expose removes, and portals in the processing of cylindrical insert axis direction again.
Such as Fig. 4 and shown in Figure 6, when needs when die casting processes than macropore when (more than the ￠ 6mm), in cylindrical insert 2 bottoms the second locating hole 8 is set, alignment core 9 is set on the compression mod 1, the second locating hole 8 of cylindrical insert 2 is sleeved on the alignment core 9 of compression mod 1, carry out die casting, this cylindrical insert 2 is embedded in the die casting 3, portal in the processing of cylindrical insert axis direction again.
Wherein, cylindrical insert 2 is to be made by the rolling or expanded material identical with the rough casting material, the excircle of cylindrical insert 2 is provided with two cannelures 6 and flat side 7, with guarantee this inserts afterwards processing and use in do not produce radial-play and circumference rotation.
Such as Fig. 7 and shown in Figure 9, when needs when die casting 3 processes than aperture (below the ￠ 5mm), hexagonal prism shape inserts 10 bottoms a cylindrical wisp 4 is set, again cylindrical wisp 4 is packed in the first locating hole 5 of compression mod 1, carry out die casting, this hexagonal prism shape inserts 10 is embedded in the die casting 3, after die casting 3 depannings, the cylindrical wisp 4 that will expose removes, and portals in the processing of hexagonal prism shape inserts 10 axis directions again.
Such as Fig. 8 and shown in Figure 10, when needs when die casting processes than macropore when (more than the ￠ 6mm), at hexagonal prism shape inserts 10 the second locating hole 8 is set, alignment core 9 is set on the compression mod 1, the second locating hole 8 of hexagonal prism shape inserts 10 is sleeved on the alignment core 9 of compression mod 1, carry out die casting, this hexagonal prism shape inserts 10 is embedded in the die casting, portal in this inserts axis direction processing again.
Wherein, hexagonal prism shape inserts 10 is to be made by the rolling or expanded material identical with the rough casting material, and the excircle of hexagonal prism shape inserts 10 is provided with three cannelures 6, with guarantee this inserts afterwards processing and use in do not produce play.
Although in conjunction with specific embodiments the specific embodiment of the present invention is described in detail, be not to be restriction to this patent protection domain.In claims limited range, various modifications that those skilled in the art can make without creative work or adjust the protection that still is subjected to this patent.
Claims (7)
1. solve the method for the inner sbrinkage blowhole of the thick large part of die casting with inlaying process, it is characterized in that, the step that comprises is: when blank is produced an inserts pressure casting inlay is needed to process the position of portalling at die casting, portal in the processing of inserts axis direction again, thereby reduce the sbrinkage blowhole that occurs when the thick large part processing of die casting is portalled; Described inserts is to be made by the rolling or expanded material identical with the rough casting material.
2. the method that solves the inner sbrinkage blowhole of the thick large part of die casting with inlaying process according to claim 1, it is characterized in that, the locate mode of described inserts in die casting is: inserts is provided with cylindrical wisp, during die casting cylindrical wisp packed in the first locating hole of compression mod into the location, position of realizing inserts.
3. the method that solves the inner sbrinkage blowhole of the thick large part of die casting with inlaying process according to claim 1, it is characterized in that, the locate mode of described inserts in die casting is: compression mod arranges alignment core, the second locating hole is set on the inserts, the second locating hole with inserts during die casting is sleeved on the alignment core of compression mod, realizes the location, position of inserts.
4. according to claim 1 to 3 arbitrary described methods that solve the inner sbrinkage blowhole of the thick large part of die casting with inlaying process, it is characterized in that: described inserts is cylindrical insert, and the excircle of cylindrical insert is provided with and makes this inserts not produce cannelure and the flat side of radial-play and circumference rotation.
5. according to claim 4ly solve the method for the inner sbrinkage blowhole of the thick large part of die casting with inlaying process, it is characterized in that: described cannelure is set to two.
6. according to claim 1 to 3 arbitrary described methods that solve the inner sbrinkage blowhole of the thick large part of die casting with inlaying process, it is characterized in that: described inserts is hexagonal prism shape inserts, and the excircle of hexagonal prism shape inserts is provided with the cannelure that makes this inserts not produce play.
7. according to claim 6ly solve the method for the inner sbrinkage blowhole of the thick large part of die casting with inlaying process, it is characterized in that: described cannelure is set to three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210467337.4A CN102974799B (en) | 2012-11-19 | 2012-11-19 | Method for solving shrinkage blowholes inside large and thick parts of die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210467337.4A CN102974799B (en) | 2012-11-19 | 2012-11-19 | Method for solving shrinkage blowholes inside large and thick parts of die casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102974799A true CN102974799A (en) | 2013-03-20 |
| CN102974799B CN102974799B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210467337.4A Expired - Fee Related CN102974799B (en) | 2012-11-19 | 2012-11-19 | Method for solving shrinkage blowholes inside large and thick parts of die casting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488001A (en) * | 2018-06-11 | 2018-09-04 | 苏州德格玛精密部件有限公司 | A kind of valve mechanism cover copper insert and its processing technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6434562A (en) * | 1987-07-31 | 1989-02-06 | Kawamura Seiki Kk | Casting by die casting and die therefor |
| CN101166595A (en) * | 2005-04-26 | 2008-04-23 | 株式会社木村铸造所 | Method for predicting and preventing shrinkage cavity of iron casting |
| CN201572881U (en) * | 2009-11-07 | 2010-09-08 | 湖州安达汽车配件有限公司 | Embedded mold core used for casting |
| CN102248149A (en) * | 2011-07-15 | 2011-11-23 | 徐州徐航压铸有限公司 | Method for eliminating leakage of 4G18 die-casting aluminum alloy engine cylinder shell by using hole insert |
| CN202461484U (en) * | 2012-03-07 | 2012-10-03 | 宁波市北仑燎原模铸有限公司 | Automobile air conditioning compressor cylinder body die-casting die |
-
2012
- 2012-11-19 CN CN201210467337.4A patent/CN102974799B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6434562A (en) * | 1987-07-31 | 1989-02-06 | Kawamura Seiki Kk | Casting by die casting and die therefor |
| CN101166595A (en) * | 2005-04-26 | 2008-04-23 | 株式会社木村铸造所 | Method for predicting and preventing shrinkage cavity of iron casting |
| CN201572881U (en) * | 2009-11-07 | 2010-09-08 | 湖州安达汽车配件有限公司 | Embedded mold core used for casting |
| CN102248149A (en) * | 2011-07-15 | 2011-11-23 | 徐州徐航压铸有限公司 | Method for eliminating leakage of 4G18 die-casting aluminum alloy engine cylinder shell by using hole insert |
| CN202461484U (en) * | 2012-03-07 | 2012-10-03 | 宁波市北仑燎原模铸有限公司 | Automobile air conditioning compressor cylinder body die-casting die |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488001A (en) * | 2018-06-11 | 2018-09-04 | 苏州德格玛精密部件有限公司 | A kind of valve mechanism cover copper insert and its processing technology |
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| CN102974799B (en) | 2015-06-10 |
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