CN105108071A - Formative technology method of single-side flange hollow box casting - Google Patents
Formative technology method of single-side flange hollow box casting Download PDFInfo
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- CN105108071A CN105108071A CN201510551211.9A CN201510551211A CN105108071A CN 105108071 A CN105108071 A CN 105108071A CN 201510551211 A CN201510551211 A CN 201510551211A CN 105108071 A CN105108071 A CN 105108071A
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- hollow box
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Abstract
The invention provides a formative technology method of a single-side flange hollow box casting, and belongs to the technical field of casting technologies. The formative technology method is aimed at solving the technical problem that products are scraped due to offset in the casting process, and the yield is improved. According to technical scheme of the formative technology method of the single-side flange hollow box casting, the casting is a rectangular hollow box, and a flange disc is only arranged on the top face of the casting. The method comprises the following steps that firstly, a template corresponding to the casting is manufactured according to a casting technology drawing of the casting, the flange disc is arranged on the top face of the template, a pseudo flange is further reserved on the bottom face of the template, the pseudo flange and the flange disc are equal in size and opposite in position, and the top face and the bottom face of the template are connected and fixed through a plurality of cast nails; secondly, coating is dried; thirdly, forming is conducted; fourthly, pouring, shakeout and cleaning are conducted; and fifthly, all portions of the casting are machined, and the pseudo flange and the cast nails on the casting are removed.
Description
Technical field
The moulding process of one side flange casting of the present invention, belongs to Casting Technology field.
Background technology
Finland's tonneau 310.652 foundry goods is the hollow rectangular box that one side arranges ring flange, and this Product Process quality requirement is high especially, and casting processing is not slightly noted just making product rejection.But this foundry goods but encounters following problem in casting processing, makes yield rate greatly reduce, adds consuming cost, and waste a large amount of time: 1, its one side arranges the special construction of flange, two sides Imbalance in weight, in casting and process, easily causes inclined head; 2, due to hollow box body structure, inner without supporting, work in-process can cause contraction or bulging; 3, in casting process, due to gas expansion between sand in resin sand, mould casting deformation defect is caused.These problems all manufacture qualified products and must overcome.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, and technical problem to be solved is to provide a kind of moulding process of one side flange hollow box body foundry goods, because inclined head causes product rejection in avoiding casting to process, improves yield rate.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: the moulding process of one side flange hollow box body foundry goods, and foundry goods is rectangle hollow casing and only has end face to be provided with ring flange, carries out in accordance with the following steps:
The first step, manufactures apperance, and the foundary methods drawing paper according to foundry goods manufactures the apperance corresponding to foundry goods, and the end face of apperance is provided with ring flange, and the bottom surface of apperance is also reserved with pseudo-flange, and described pseudo-flange is equal with ring flange volume and position is relative;
Second step, coating is dry, is coated with spread coated paint, and dries on the apperance surface of making;
3rd step, moulding, is placed in sandbox by the apperance of drying, places running channel, fills out resin sand and carry out moulding in sandbox;
4th step, cast, knockout and cleaning, pouring molten iron in sandbox, knockout of unpacking after cooling, clears up foundry goods;
5th step, processes each position of foundry goods, and excises the pseudo-flange on foundry goods.
In the described first step, the inside of made apperance is provided with multiple casting nail, and the end face of described apperance and the multiple casting nail of underrun are connected and fixed, and described 5th step is to excision casting nail during Mechanical processing of casting.
In the 3rd described step moulding, after apperance puts into sandbox, place multiple core pipe and core Guan Jun does not contact with apperance in the cavity of apperance, described core pipe is the hollow metal tube that body is provided with multiple air-vent.
The beneficial effect that the present invention is compared with the existing technology had is: when manufacturing apperance, the pseudo-flange that reserved setting is corresponding to ring flange position and volume in apperance, to reach the object of casing two lateral balance, make it in casting process, avoid inclined head phenomenon, after Mechanical processing of casting completes, excise pseudo-flange again, improve yield rate; The casting nail in connection two faces is set in apperance inside, makes it not shrink in process, not bulging, ensure that the processing of product is qualified; In casting process, utilize core pipe to get rid of the gas of expanded by heating in resin sand, prevent casting deformation, reduce product defects, improve finished product quality.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is the structural representation of apperance in the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
In figure: 1 is apperance, 2 is ring flange, and 3 is pseudo-flange, and 4 is casting nail, and 5 is core pipe.
Detailed description of the invention
The moulding process of one side flange hollow box body foundry goods of the present invention, foundry goods is rectangle hollow casing and only has end face to be provided with ring flange 2, carries out in accordance with the following steps:
The first step, manufactures apperance, and the foundary methods drawing paper according to foundry goods manufactures the apperance 1 corresponding to foundry goods, the end face of apperance 1 is provided with ring flange 2, as shown in Figure 1, the bottom surface of apperance 1 is also reserved with pseudo-flange 3, described pseudo-flange 3 is equal with ring flange 2 volume and position is relative, as shown in Figure 2;
Second step, coating is dry, is coated with spread coated paint, and dries on apperance 1 surface of making;
3rd step, moulding, is placed in sandbox by the apperance of drying, places running channel, fills out resin sand and carry out moulding in sandbox;
4th step, cast, knockout and cleaning, pouring molten iron in sandbox, knockout of unpacking after cooling, clears up foundry goods;
5th step, processes each position of foundry goods, and excises the pseudo-flange 3 on foundry goods.
In the described first step, the inside of made apperance 1 is provided with multiple casting nail 4, and the end face of described apperance 1 and the multiple casting nail 4 of underrun are connected and fixed, and described 5th step is to excision casting nail 4 during Mechanical processing of casting.Casing two faces propped up by casting nail 4, make it not shrink in process, not bulging, and ensure that the processing of product is qualified, after post-production completes, cutting is also more easy and convenient.
In the 3rd described step moulding, after apperance 1 puts into sandbox, in the cavity of apperance 1, place multiple core pipe 5 and core pipe 5 does not all contact with apperance 1, the hollow metal tube of described core pipe 5 multiple air-vent for body is provided with.Resin sand expanded by heating under the molten iron effect of cast, the air of inner inclusion flows out casing from the aperture core pipe 5 along core pipe, makes its inside leave expansion space, prevents casting deformation, reduces product defects, improves finished product quality.
By reference to the accompanying drawings embodiments of the invention are explained in detail above, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.
Claims (3)
1. the moulding process of one side flange hollow box body foundry goods, foundry goods is rectangle hollow casing and only has end face to be provided with ring flange (2), it is characterized in that carrying out in accordance with the following steps:
The first step, manufacture apperance, foundary methods drawing paper according to foundry goods manufactures the apperance (1) corresponding to foundry goods, the end face of apperance (1) is provided with ring flange (2), the bottom surface of apperance (1) is also reserved with pseudo-flange (3), described pseudo-flange (3) is equal with ring flange (2) volume and position is relative;
Second step, coating is dry, is coated with spread coated paint, and dries on the apperance made (1) surface;
3rd step, moulding, is placed in sandbox by the apperance of drying, places running channel, fills out resin sand and carry out moulding in sandbox;
4th step, cast, knockout and cleaning, pouring molten iron in sandbox, knockout of unpacking after cooling, clears up foundry goods;
5th step, processes each position of foundry goods, and excises the pseudo-flange (3) on foundry goods.
2. the moulding process of one side flange hollow box body foundry goods according to claim 1, it is characterized in that: in the described first step, the inside of made apperance (1) is provided with multiple casting nail (4), the end face of described apperance (1) and multiple casting nail (4) of underrun are connected and fixed, and described 5th step is to excision casting nail (4) during Mechanical processing of casting.
3. the moulding process of one side flange hollow box body foundry goods according to claim 1 and 2, it is characterized in that: in the 3rd described step moulding, after apperance (1) puts into sandbox, in the cavity of apperance (1), place multiple core pipe (5) and core pipe (5) all do not contact with apperance (1), the hollow metal tube of described core pipe (5) multiple air-vent for body is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510551211.9A CN105108071B (en) | 2015-09-02 | 2015-09-02 | Formative technology method of single-side flange hollow box casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510551211.9A CN105108071B (en) | 2015-09-02 | 2015-09-02 | Formative technology method of single-side flange hollow box casting |
Publications (2)
| Publication Number | Publication Date |
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| CN105108071A true CN105108071A (en) | 2015-12-02 |
| CN105108071B CN105108071B (en) | 2017-05-17 |
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| CN201510551211.9A Active CN105108071B (en) | 2015-09-02 | 2015-09-02 | Formative technology method of single-side flange hollow box casting |
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Citations (7)
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| JPS491695B1 (en) * | 1969-09-11 | 1974-01-16 | ||
| JPS60210341A (en) * | 1984-03-31 | 1985-10-22 | Toho Kogyo Kk | Apparatus for producing balance weight |
| CN1493414A (en) * | 2002-10-28 | 2004-05-05 | 王玉和 | Method of casting loading machine large speed changing box body using vanishing mould |
| CN101020226A (en) * | 2007-03-15 | 2007-08-22 | 繁昌县金贸铸造有限责任公司 | Flange casting process |
| CN101698227A (en) * | 2008-05-19 | 2010-04-28 | 施小弟 | Technological method for die-casting aluminum alloy of inner flange box body |
| CN102909348A (en) * | 2012-10-26 | 2013-02-06 | 上海华新合金有限公司 | Process for casting gearbox body of centrifugal compressor |
| CN104785731A (en) * | 2015-05-11 | 2015-07-22 | 江苏力源金河铸造有限公司 | Reduction gearbox shell casting process |
-
2015
- 2015-09-02 CN CN201510551211.9A patent/CN105108071B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS491695B1 (en) * | 1969-09-11 | 1974-01-16 | ||
| JPS60210341A (en) * | 1984-03-31 | 1985-10-22 | Toho Kogyo Kk | Apparatus for producing balance weight |
| CN1493414A (en) * | 2002-10-28 | 2004-05-05 | 王玉和 | Method of casting loading machine large speed changing box body using vanishing mould |
| CN101020226A (en) * | 2007-03-15 | 2007-08-22 | 繁昌县金贸铸造有限责任公司 | Flange casting process |
| CN101698227A (en) * | 2008-05-19 | 2010-04-28 | 施小弟 | Technological method for die-casting aluminum alloy of inner flange box body |
| CN102909348A (en) * | 2012-10-26 | 2013-02-06 | 上海华新合金有限公司 | Process for casting gearbox body of centrifugal compressor |
| CN104785731A (en) * | 2015-05-11 | 2015-07-22 | 江苏力源金河铸造有限公司 | Reduction gearbox shell casting process |
Non-Patent Citations (2)
| Title |
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| 刘喜俊: "《铸工工艺学》", 31 October 1999, 机械工业出版社 * |
| 郑建启等: "《模型制作》", 31 August 2007, 高等教育出版社 * |
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| CN105108071B (en) | 2017-05-17 |
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