CN102990015A - Method for manufacturing high-density shell-mould and shell-core sand ejecting head - Google Patents
Method for manufacturing high-density shell-mould and shell-core sand ejecting head Download PDFInfo
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- CN102990015A CN102990015A CN2012104403712A CN201210440371A CN102990015A CN 102990015 A CN102990015 A CN 102990015A CN 2012104403712 A CN2012104403712 A CN 2012104403712A CN 201210440371 A CN201210440371 A CN 201210440371A CN 102990015 A CN102990015 A CN 102990015A
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- sand
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- air accumulator
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Abstract
The invention relates to a method for manufacturing high-density shell-mould and shell-core sand ejecting head. An air inlet is formed in one end of an air storage tank, the air storage tank is communicated with a sand ejecting valve through an air pipe, the sand ejecting valve and an ejecting head are sealed by adopting a heat-resistant silicon rubber ring, precoated sands are filled in the ejecting head, and a sand ejecting hole is formed in one end part of the ejecting head. According to the method, a shell core and a shell mould obtained by the method are compact in structure, the surface roughness grade of a casted product is high, the surface roughness grade of the casted steel casting piece is Ra50, the surface roughness grade of the casted gray iron casting piece is Ra25, and the surface roughness grade of the casted spheroidal graphite cast iron casting piece is Ra25.
Description
Technical field
The invention belongs to the machine casting technical field, relate to a kind of method of making high-compactness shell mould, shell core sand-shooting head.
Background technology
Now general shell molding machine, the sand-shooting head of shell core machine, all adopt pneuamtic shutoff valves control to penetrate sand, penetrating when making the shell mould complicated, that volume is larger, shell core, the shell core that obtains and shell mould are fine and close not, the surface roughness grade that adopts above-mentioned shell core and shell mould to make is not high, usually only has Ra100.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art, it is fine and close to the invention provides a kind of resulting shell core and shell structure, cast the high making high-compactness shell mould of the roughness grade of product, the method for shell core sand-shooting head.
The technical solution adopted for the present invention to solve the technical problems is: a kind of high-compactness shell mould, shell core sand-shooting head, comprise air accumulator, Sand jet valve and penetrate head, end at air accumulator is provided with air admission hole, air accumulator is connected with Sand jet valve by tracheae, Sand jet valve and penetrate between head and to adopt the sealing of heat-resistant silicon rubber circle, precoated sand is housed in penetrating head, is provided with sand-spraying hole in an end penetrating head.
The preparation method of above-mentioned high-compactness shell mould, shell core sand-shooting head is:
The first step is to make Sand jet valve: when making Sand jet valve, adopt interlock dish valve by solenoid control as Sand jet valve, its each second capacity 〉=12 cubes (mark is pressed), the admission pressure≤0.3MPa of Sand jet valve;
Second step is to make to penetrate head: penetrate head by processing behind the Plate Welding, the storage sand amount of penetrating head is 3 times that the single husky core of the system of penetrating is used husky amount, and is different according to the core of the system of penetrating, and designs different loopholes, and principle is: every 1KG weight core, loophole sectional area 100m ㎡;
The 3rd step was to make air accumulator: the requirement of air accumulator is every 1KG weight core, and the volume of air accumulator is 0.1 cubic metre; To and penetrate head through above-mentioned three step prepared air accumulator, Sand jet valves at last and be assembled into high-compactness shell mould, shell core sand-shooting head, and above-mentioned sand-shooting head will be assemblied in just can penetrate on shell molding machine or the shell core machine make shell core shell mould alive.
Good effect of the present invention is: the shell core and the shell structure that adopt the present invention to obtain are fine and close, and institute cast the roughness grade height of product, and the surface roughness that the foundry goods that the present invention casts reaches is that steel is that Ra50 casting pig is Ra25, spheroidal graphite cast-iron Ra25.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1-air accumulator, 2-air admission hole, 3-Sand jet valve, 4-silicon rubber loop, 5-penetrate head, 6-precoated sand, 7-sand-spraying hole.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Referring to Fig. 1, a kind of high-compactness shell mould, shell core sand-shooting head, comprise air accumulator, Sand jet valve and penetrate head, end at air accumulator is provided with air admission hole, air accumulator is connected with Sand jet valve by tracheae, Sand jet valve and penetrate between head and to adopt the sealing of heat-resistant silicon rubber circle is equipped with precoated sand in penetrating head, be provided with sand-spraying hole in an end penetrating head.
The preparation method of above-mentioned high-compactness shell mould, shell core sand-shooting head is:
The first step is to make Sand jet valve: when making Sand jet valve, adopt interlock dish valve by solenoid control as Sand jet valve, each second capacity 〉=12 cubes (mark is pressed), the admission pressure≤0.3MPa of Sand jet valve;
Second step is to make to penetrate head: penetrate head by processing behind the Plate Welding, the storage sand amount of penetrating head is 3 times that the single husky core of the system of penetrating is used husky amount, and is different according to the core of the system of penetrating, and designs different loopholes, and principle is: every 1KG weight core, loophole sectional area 100m ㎡;
The 3rd step was to make air accumulator: the requirement of air accumulator is every 1KG weight core, and the volume of air accumulator is 0.1 cubic metre; To and penetrate head through above-mentioned three step prepared air accumulator, Sand jet valves at last and be assembled into high-compactness shell mould, shell core sand-shooting head, and above-mentioned sand-shooting head will be assemblied in just can penetrate on shell molding machine or the shell core machine make shell core shell mould alive.
Using sand-shooting head of the present invention to make the foundry goods that shell mould, shell core cast out compares with traditional shell mould, shell moud casting spare: the surface roughness of wherein casting are compared: the surface roughness that reaches of shell mould, shell moud casting was that steel is Ra50, spheroidal graphite cast-iron Ra50 as Ra100 casting pig in the past; The surface roughness that the foundry goods that adopts the present invention to cast reaches is that steel is that Ra50 casting pig is Ra25, spheroidal graphite cast-iron Ra25.
Claims (2)
1. a high-compactness shell mould, shell core sand-shooting head, it is characterized in that: comprise air accumulator, Sand jet valve and penetrate head, end at air accumulator is provided with air admission hole, air accumulator is connected with Sand jet valve by tracheae, Sand jet valve and penetrate between head and to adopt the sealing of heat-resistant silicon rubber circle, precoated sand is housed in penetrating head, is provided with sand-spraying hole in an end penetrating head.
2. make the method for making as claimed in claim 1 high-compactness shell mould, shell core sand-shooting head, it is characterized in that processing step is:
The first step is to make Sand jet valve: when making Sand jet valve, adopt interlock dish valve by solenoid control as Sand jet valve, its each second capacity 〉=12 cubes, the admission pressure≤0.3MPa of Sand jet valve;
Second step is to make to penetrate head: penetrate head by processing behind the Plate Welding, the storage sand amount of penetrating head is 3 times that the single husky core of the system of penetrating is used husky amount, and is different according to the core of the system of penetrating, and designs different loopholes, and principle is: every 1KG weight core, loophole sectional area 100m ㎡;
The 3rd step was to make air accumulator: the requirement of air accumulator is every 1KG weight core, and the volume of air accumulator is 0.1 cubic metre; To and penetrate head through above-mentioned three step prepared air accumulator, Sand jet valves at last and be assembled into high-compactness shell mould, shell core sand-shooting head, and above-mentioned sand-shooting head will be assemblied in just can penetrate on shell molding machine or the shell core machine make shell core shell mould alive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210440371.2A CN102990015B (en) | 2012-11-07 | 2012-11-07 | Method for manufacturing high-density shell-mould and shell-core sand ejecting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210440371.2A CN102990015B (en) | 2012-11-07 | 2012-11-07 | Method for manufacturing high-density shell-mould and shell-core sand ejecting head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102990015A true CN102990015A (en) | 2013-03-27 |
| CN102990015B CN102990015B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210440371.2A Active CN102990015B (en) | 2012-11-07 | 2012-11-07 | Method for manufacturing high-density shell-mould and shell-core sand ejecting head |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2701552Y (en) * | 2004-06-07 | 2005-05-25 | 苏州工业园区明志铸造装备有限公司 | Sand shooting mechanism for core shooter |
| CN201223924Y (en) * | 2008-07-03 | 2009-04-22 | 溧阳市科华机械制造有限公司 | Small-sized core shooter with mould opening control function |
| CN201415257Y (en) * | 2009-05-27 | 2010-03-03 | 路达(厦门)工业有限公司 | Multistation modular sand-shooting former |
| CN202367160U (en) * | 2011-12-19 | 2012-08-08 | 致恒(天津)实业有限公司 | Hydraulic system for compaction cylinder of molding machine |
-
2012
- 2012-11-07 CN CN201210440371.2A patent/CN102990015B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2701552Y (en) * | 2004-06-07 | 2005-05-25 | 苏州工业园区明志铸造装备有限公司 | Sand shooting mechanism for core shooter |
| CN201223924Y (en) * | 2008-07-03 | 2009-04-22 | 溧阳市科华机械制造有限公司 | Small-sized core shooter with mould opening control function |
| CN201415257Y (en) * | 2009-05-27 | 2010-03-03 | 路达(厦门)工业有限公司 | Multistation modular sand-shooting former |
| CN202367160U (en) * | 2011-12-19 | 2012-08-08 | 致恒(天津)实业有限公司 | Hydraulic system for compaction cylinder of molding machine |
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| Publication number | Publication date |
|---|---|
| CN102990015B (en) | 2015-05-13 |
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