CN101301681B - Casting method of tabular spheroidal iron piece and casting system thereof - Google Patents
Casting method of tabular spheroidal iron piece and casting system thereof Download PDFInfo
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- CN101301681B CN101301681B CN2008100392731A CN200810039273A CN101301681B CN 101301681 B CN101301681 B CN 101301681B CN 2008100392731 A CN2008100392731 A CN 2008100392731A CN 200810039273 A CN200810039273 A CN 200810039273A CN 101301681 B CN101301681 B CN 101301681B
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Abstract
The invention discloses a pouring method and a pouring system used for a plate-shaped ball iron casting. The method adopts a sand casting technique; the pouring system comprises a sprue cup, a sprue, a horizontal runner and a plurality of plate-shaped castings; the method adopts a type that the large plane of the plate-shaped casting is vertically arranged in parallel; the horizontal runner and the plate-shaped casting form a narrow seam edge gate so as to lead the molten steel to flow in along the wall and be stably filled from bottom to top during the pouring process. When the method and the pouring system of the invention are adopted, the molten steel is filled along the wall during the pouring process and the metal is sequentially solidified from bottom to top, thus ensuring the uniformity and consistency of the metallographic structure of the plate-shaped ball iron casting; furthermore, by the narrow seam edge gate, the pouring time is prolonged, the shrinkage compensation effect is provided during the pouring process, furthermore, the slag retaining effect is good and the defects such as slag inclusion, sand inclusion, etc. are avoided; the plate-shaped ball iron casting pouring system of the invention has reasonable and simple structure, saves the metal and has high process yield; furthermore, the pouring system is convenient to be removed; the casting adopts serial pouring, thus having small land occupying and high production efficiency.
Description
Technical field
The present invention relates to a kind of pouring procedure, relate in particular to a kind of pouring procedure of tabular magnesium iron spare;
The invention still further relates to a kind of running gate system, relate in particular to a kind of running gate system of tabular magnesium iron spare.
Background technology
Running gate system is the passage that liquid metal flows into die cavity in the casting mold.The running gate system of general ironcasting mainly is made up of cup, sprue, cross gate and ingate four parts.Reasonably running gate system is to guaranteeing that casting quality is very important.
Tabular magnesium iron spare for long 100～300mm, wide 50～100mm, thick 5～15mm; Though its simple shape; But, require its metallographic structure uniformity, field trashes such as no carburizing because foundry goods directly uses with as cast condition without heat treatment; With the mechanical property that guarantees green casting within the specific limits, and foundry goods does not allow defectives such as sand holes, pore, slag inclusion.
The running gate system of existing tabular magnesium iron spare mainly contains two kinds:
First kind is horizontal side notes method, and running gate system is as shown in Figure 1.Tabular foundry goods 1 big planar horizontal is placed, and molten iron gets into die cavity through cup 2, sprue 3, cross gate 4, ingate 5 from foundry goods one side.When filling type, molten iron rises to plane 7 gradually by foundry goods bottom surface 6; Because foundry goods is thinner, the sand mold die cavity on plane 7 is in heating status always in the whole formation, and magnesium iron liquid is mobile relatively poor; The rate of climb of molten metal is slower, is prone to make the last plane of foundry goods to form burning into sand, type of scabbing defective; Exhaust is not smooth in the die cavity in addition, and place, plane on foundry goods, cast back is prone to contracts flatly, and it is recessed to form the plane, can not guarantee the dimensional accuracy of foundry goods well.
Second kind is vertical bottom running, and running gate system is as shown in Figure 2.Vertically place on tabular foundry goods 1 big plane, and molten iron gets into die cavity through cup 2, sprue 3, cross gate 4, ingate 5 from foundry goods bottom 9.It is steady that molten metal fills type from bottom to top, help gas discharge in the die cavity, but tabular magnesium iron spare is a thin-section casting; Ingate 8 sectional areas are less; Especially during the cavity filling process medium casting bottom high-temperature liquid metal that always is in continuous entering surrounds, and it is on the low side to fill the molten metal relative temperature on type to foundry goods top 10, makes 10 places, foundry goods top be prone to the cold shut defective; And the temperature difference up and down also is prone to make the metallographic structure of foundry goods to produce difference, thereby causes the mechanical property of monoblock foundry goods unbalanced.
Summary of the invention
Technical problem to be solved by this invention is pouring procedure and the running gate system thereof that a kind of rational more tabular magnesium iron spare will be provided; Make the foundry goods inside metallographic of casting through this running gate system more even; Material capability is more stable, improves the casting flaw such as cold shut, misrun, slag inclusion, burning into sand of cast(ing) surface.
The present invention is that to solve the problems of the technologies described above the technical scheme that provides following:
A kind of pouring procedure of tabular magnesium iron spare; This method adopts sand casting process; Its running gate system includes cup, sprue, cross gate and some tabular foundry goods, and this method adopts the mode of the tabular foundry goods vertical parallel placement in big plane, and described cross gate and tabular each cast top of foundry goods group directly form narrow slit kiss gate; Molten metal can flow into along wall through kiss gate when making cast, and fills type from bottom to top reposefully.
The flanging width of described kiss gate is preferably 2～3mm.
Further, the bilateral symmetry of described cross gate bottom is provided with two groups of tabular foundry goods, and the both sides of cross gate bottom form narrow slit shape kiss gate with the top of these two groups of tabular foundry goods respectively, and the foundry goods quantity of every side plate shape foundry goods group is no more than 10.
Opposite side in tabular cast top preferably is provided with venthole.
The present invention also provides a kind of running gate system of using the tabular magnesium iron spare of above-mentioned process; Include cup, sprue, cross gate and some tabular foundry goods; The vertical parallel placement in the big plane of described tabular foundry goods; At interval effective distance between the tabular foundry goods, cross gate is arranged at a side of tabular each cast top of foundry goods group, and forms narrow slit shape kiss gate.
The flanging width of described kiss gate is preferably 2～3mm.
Further; The bilateral symmetry of described cross gate bottom is provided with two groups of tabular foundry goods; The both sides of cross gate bottom form narrow slit shape kiss gate with the top of these two groups of tabular foundry goods respectively, and the foundry goods quantity of one-sided tabular foundry goods group is no more than 10 (quantity also can cause defectives such as misrun too much).
Opposite side in tabular cast top preferably is provided with venthole.
The present invention adopts top kiss gate technology; Tabular foundry goods is vertically arranged, and molten iron flows into along wall through the flanging slit when pouring into a mould like this, and molten metal steadily fills type from bottom to top; Metal is consecutive solidification from bottom to up; Strengthened the succession of solidifying, helped preventing misrun and cold shut defective, thereby guarantee the uniformity of tabular magnesium iron spare metallographic structure; And, prolonged the duration of pouring through the cast of narrow slit cast gate, the feeding effect is just arranged in casting process, and the pushing off the slag function well, avoided defectives such as slag inclusion, burning into sand; Tabular magnesium iron spare running gate system of the present invention is rational in infrastructure, simple, practices thrift metal, and product yield is high; And running gate system is convenient to remove, and foundry goods adopts series pouring, and floor space is little, and production efficiency is high.
The setting of venthole then helps the exhaust of the type mode of filling in casting process of running gate system of the present invention, eliminates defectives such as pore.
Description of drawings
For let above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, elaborate below in conjunction with the accompanying drawing specific embodiments of the invention, wherein:
Fig. 1 is the running gate system sketch map that the tabular magnesium iron spare horizontal side of prior art is annotated method;
Fig. 2 is the running gate system sketch map of the vertical bottom running of tabular magnesium iron spare of prior art;
Fig. 3 is the structural representation of one of the tabular magnesium iron spare running gate system of the present invention embodiment;
Fig. 4 is two the structural representation of the tabular magnesium iron spare running gate system of the present invention embodiment.
Among the figure:
1. tabular foundry goods 2. cups 3. sprues 4. cross gates
5. ingate 6. adopts horizontal side to annotate the foundry goods bottom surface in the running gate system of method
7. adopt horizontal side to annotate plane on the foundry goods in the running gate system of method
8. adopt the ingate in the running gate system of vertical bottom running
9. adopt the foundry goods bottom in the running gate system of vertical bottom running
10. adopt foundry goods top 11. kiss gates in the running gate system of vertical bottom running
12. venthole 13. foundry goods spacings
14. the top of tabular foundry goods in the running gate system of the present invention
The specific embodiment
Embodiment 1
As shown in Figure 3, with the vertical parallel placement in the big plane of one group of 6 tabular magnesium iron spare 1, the distance 13 that every block casting part is certain at interval is to guarantee enough mold thicknesses.Cross gate 4 is positioned over top 14 1 sides of foundry goods group; The flanging width of formed kiss gate 11 is 2～3mm; Sprue 3 and cup 2 are set on the cross gate 4, and molten metal gets into die cavity through cup 2, sprue 3, cross gate 4 and kiss gate 11 during cast, descends along wall; Accomplish from bottom to top then and steadily fill type, form monolateral series connection foundry goods in groups.Opposite side at every block casting part top sets out pore 12 respectively, and it is smooth and easy to be beneficial in the casting process exhaust.
As shown in Figure 4, with the vertical parallel placement in the big plane of one group of 5 tabular magnesium iron spare 1, on the basis of first kind of embodiment; Symmetry is placed 5 tabular magnesium iron spares of another group in cross gate 4 bottoms, and forms the kiss gate 11 of opposite side, and molten metal gets into die cavity through cup 2, sprue 3, cross gate 4 and both sides kiss gate 11 during cast; Descend along wall; Accomplish from bottom to top then and steadily fill type,, finally form the bilateral foundry goods in groups of connecting through venthole 12 exhausts.
The tabular magnesium iron spare group of every group of parallel placement also can be the tabular magnesium iron spare that comprises other numbers of packages in the foregoing description, but general every group be no more than 10, because quantity also can cause defectives such as misrun too much.
Claims (4)
1. the pouring procedure of a tabular magnesium iron spare; This method adopts sand casting process; Its running gate system includes cup, sprue, cross gate and some tabular foundry goods, and it is characterized in that: this method adopts the mode of the tabular foundry goods vertical parallel placement in big plane, and described cross gate and tabular each cast top of foundry goods group directly form narrow slit kiss gate; Molten metal can flow into along wall through kiss gate when making cast, and fills type from bottom to top reposefully; The flanging width of described kiss gate is 2～3mm; Opposite side in tabular cast top is provided with venthole.
2. the pouring procedure of tabular magnesium iron spare according to claim 1; It is characterized in that: the bilateral symmetry of described cross gate bottom is provided with two groups of tabular foundry goods; The both sides of cross gate bottom form narrow slit shape kiss gate with the top of these two groups of tabular foundry goods respectively, and the foundry goods quantity of every side plate shape foundry goods group is no more than 10.
3. the running gate system of a tabular magnesium iron spare; Include cup, sprue, cross gate and some tabular foundry goods; It is characterized in that: the vertical parallel placement in the big plane of described tabular foundry goods; At interval effective distance between the tabular foundry goods, cross gate is arranged at a side of tabular each cast top of foundry goods group, and forms narrow slit shape kiss gate; The flanging width of described kiss gate is 2～3mm; Opposite side in tabular cast top is provided with venthole.
4. the running gate system of a kind of tabular magnesium iron spare according to claim 3; It is characterized in that: the bilateral symmetry of described cross gate bottom is provided with two groups of tabular foundry goods; The both sides of cross gate bottom form narrow slit shape kiss gate with the top of these two groups of tabular foundry goods respectively, and the foundry goods quantity of one-sided tabular foundry goods group is no more than 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100392731A CN101301681B (en) | 2008-06-20 | 2008-06-20 | Casting method of tabular spheroidal iron piece and casting system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008100392731A CN101301681B (en) | 2008-06-20 | 2008-06-20 | Casting method of tabular spheroidal iron piece and casting system thereof |
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| CN101301681A CN101301681A (en) | 2008-11-12 |
| CN101301681B true CN101301681B (en) | 2012-07-18 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966560B (en) * | 2010-09-15 | 2012-07-18 | 浙江佳力风能技术有限公司 | Bottom casting system of strip sectional inner runners |
| CN103537619A (en) * | 2012-07-17 | 2014-01-29 | 江苏华东风能科技有限公司 | Edgewise pouring device for foundation plate |
| CN107598085B (en) * | 2017-08-28 | 2019-11-19 | 芜湖泓鹄材料技术有限公司 | The manufacturing method of iron base plate |
| CN107876705A (en) * | 2017-12-28 | 2018-04-06 | 江苏华东风能科技有限公司 | Bottom pouring type pouring device for small and medium-sized casting |
| CN109698064B (en) * | 2019-01-08 | 2020-10-16 | 重庆华虹仪表有限公司 | Material injection mold for improving production efficiency of low-voltage transformer and application process thereof |
| CN111168011A (en) * | 2019-12-30 | 2020-05-19 | 山东常林铸业有限公司 | Vertical line slit type lap joint slag blocking casting system and process |
| CN113909435A (en) * | 2021-04-19 | 2022-01-11 | 宁波茸发新材料科技有限公司 | Casting method of ductile iron small-sized hydraulic part |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007111741A (en) * | 2005-10-20 | 2007-05-10 | Masato Goie | Casting method for enabling highly efficient production |
| CN201217069Y (en) * | 2008-06-20 | 2009-04-08 | 上海市机械制造工艺研究所有限公司 | Gating system of clintheriform spheroidal iron member |
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2008
- 2008-06-20 CN CN2008100392731A patent/CN101301681B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007111741A (en) * | 2005-10-20 | 2007-05-10 | Masato Goie | Casting method for enabling highly efficient production |
| CN201217069Y (en) * | 2008-06-20 | 2009-04-08 | 上海市机械制造工艺研究所有限公司 | Gating system of clintheriform spheroidal iron member |
Non-Patent Citations (1)
| Title |
|---|
| 罗敬堂.《铸造工实用技术》.《铸造工实用技术》.辽宁科学技术出版社,2004,130-133. * |
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Effective date of registration: 20181221 Address after: East Workshop No. 2655 Fujin Road, Baoshan District, Shanghai, 2010 Patentee after: Xin Technology (Shanghai) Material Technology Co., Ltd. Address before: No. 960 Zhongxing Road, Zhabei District, Shanghai 200070 Patentee before: Shanghai Institute of Machine Building Technology Co., Ltd. |
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