CN103084546B - A kind of pouring procedure of valve gap foundry goods - Google Patents
A kind of pouring procedure of valve gap foundry goods Download PDFInfo
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- CN103084546B CN103084546B CN201310046063.6A CN201310046063A CN103084546B CN 103084546 B CN103084546 B CN 103084546B CN 201310046063 A CN201310046063 A CN 201310046063A CN 103084546 B CN103084546 B CN 103084546B
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- core
- valve gap
- ingate
- foundry goods
- assemble
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005266 casting Methods 0.000 claims abstract description 9
- 229910001141 Ductile iron Inorganic materials 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 238000007711 solidification Methods 0.000 claims abstract description 4
- 230000008023 solidification Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003818 cinder Substances 0.000 abstract description 4
- 239000002893 slag Substances 0.000 abstract description 3
- 101100136092 Drosophila melanogaster peng gene Proteins 0.000 abstract description 2
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 238000005087 graphitization Methods 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses the pouring procedure of a kind of valve gap foundry goods, it concretely comprises the following steps: (1) carries out technique, Design of Dies according to Equilibrium Solidification principle, is fabricated to mo(u)ld bottom half, mo(u)ld top half and valve gated mold；(2) on corresponding hot box shoot core machine, mo(u)ld bottom half core processed, mo(u)ld top half core and cast gate core are penetrated；(3) repair, assemble core, the core clamping that will assemble with fixture, valve gap casting pouring molding.It is high that the present invention covers model sand mold case hardness, it is possible to giving full play to the generation of rising of graphitization Peng in spheroidal graphite cast-iron and carry out from feeding, and use hot side to water ingate, ingate is short, book, width, makes ingate give full play to its adaptive regulation effect；Completely eliminating shrinkage porosite, shrinkage cavity defect, and due to ingate relatively book, serve preferable pushing off the slag effect, also essentially eliminate the defects such as cinder hole, casting yield reaches more than 95%；Thoroughly remove chill, make operation simpler and more direct, greatly enhance production efficiency.
Description
Technical field
The present invention relates to a kind of pouring technology method, particularly relate to a kind of pouring technology method of valve gap foundry goods.
Background technology
Former technique running gate system is formulated according to solidifying principle while general, as shown in Figure 1, without shrinkage porosity defect of contraction cavity after must being processed by the feeding ability basic guarantee thermal center part surface of chill 3 and running gate system, owing to this product uses shell moulded casting, shell is system of penetrating on hot box shoot core machine, and batch is relatively big, uses a large amount of chill not only to have influence on manufacturing schedule, and chill needs processing, coating.Chill not only can lose efficacy after using for several times, and owing to coating is uneven, moisture absorption also can produce the defects such as pore, cinder hole, and the production of real uncomfortable batch, under normal production scenarios, yield rate is extremely difficult to about 80%.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to, it is provided that a kind of simple to operation, production efficiency and the pouring procedure of the highest valve gap foundry goods of yield rate.
For solving above-mentioned technical problem, the technical solution used in the present invention is: the pouring procedure of a kind of valve gap foundry goods, it is characterised in that it concretely comprises the following steps:
(1) first carry out technique, Design of Dies according to Equilibrium Solidification principle, be fabricated to mo(u)ld bottom half, mo(u)ld top half and valve gated mold；
(2) on corresponding hot box shoot core machine, mo(u)ld bottom half core processed, mo(u)ld top half core and cast gate core are penetrated；
(3) repair, assemble core, the core clamping that will assemble with fixture, valve gap casting pouring molding.
The pouring procedure of aforesaid a kind of valve gap foundry goods, it is characterised in that: the cast gate of described valve cover die includes ingate, uses hot side to water ingate, and the width of described ingate is not less than 40, and thickness is not more than 7, and length is less than 10.
The pouring procedure of aforesaid a kind of valve gap foundry goods, it is characterised in that: the cast gate of described valve cover die includes down gate, more than the twice of a diameter of valve gap maximum thermal center of described down gate.
The pouring procedure of aforesaid a kind of valve gap foundry goods, it is characterised in that: a diameter of the 50 of described down gate.
The pouring procedure of aforesaid a kind of valve gap foundry goods, it is characterised in that: the material of described valve gap is spheroidal graphite cast-iron.
The pouring procedure of aforesaid a kind of valve gap foundry goods, it is characterised in that: the head thermal center thickness of described valve gap is 20.
The invention has the beneficial effects as follows:
1. cover model sand mold case hardness high, it is possible to giving full play to the generation of rising of graphitization Peng in spheroidal graphite cast-iron and carry out from feeding, and use hot side to water ingate, ingate is short, book, width, makes ingate give full play to its adaptive regulation effect；
2., through small quantities of, large quantities of production checkings, valve gap foundry goods completely eliminates shrinkage porosite, shrinkage cavity defect, and due to ingate relatively book, serves preferable pushing off the slag effect, also essentially eliminate the defects such as cinder hole, and casting yield reaches more than 95%；
The most thoroughly remove chill, make operation simpler and more direct, greatly enhance production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the valve gap of the pouring procedure production of former valve gap foundry goods；
Fig. 2 is the structural representation of the valve gap utilizing the pouring procedure of the present invention to produce；
Fig. 3 is the process chart of the present invention.
In figure, the implication of each Main Reference Numerals is: 1. valve gap peripheral wall；2. thermal center is easily generated at shrinkage porosite；3. chill.
Detailed description of the invention
For disclosing technical scheme further, describing embodiments of the present invention below in conjunction with the accompanying drawings in detail: as it is shown on figure 3, the pouring procedure of a kind of valve gap foundry goods, it concretely comprises the following steps:
(1) first carry out technique, Design of Dies according to Equilibrium Solidification principle, be made into mo(u)ld bottom half, mo(u)ld top half and valve gated mold；
(2) on corresponding hot box shoot core machine, mo(u)ld bottom half core processed, mo(u)ld top half core and cast gate core are penetrated；
(3) repair, assemble core, the core clamping that will assemble with fixture, valve gap casting pouring molding.
The cast gate of valve cover die includes ingate, uses hot side to water ingate, and the width of described ingate is not less than 40, and thickness is not more than 7, and length is less than 10.
The cast gate of valve cover die includes down gate, and more than the twice of a diameter of valve gap maximum thermal center of down gate, the diameter of down gate can be 50.
As in figure 2 it is shown, the material of valve gap is spheroidal graphite cast-iron, peripheral wall 1 thickness of valve gap is 7, and head thermal center 2 thickness of valve gap is 20.The head of valve gap is key position, not only acts as positioning action, and plays the guide effect of valve rod, and bore area can not have any casting flaw.Through small quantities of, large quantities of production checkings, valve gap foundry goods completely eliminates shrinkage porosite, shrinkage cavity defect, and due to ingate relatively book, serves preferable pushing off the slag effect, also essentially eliminate the defects such as cinder hole, and casting yield reaches more than 95%；Thoroughly remove chill 3, make operation simpler and more direct, greatly enhance production efficiency.
Above by description of listed embodiment, elaborate the basic ideas and basic principles of the present invention.But the present invention is not limited to above-mentioned listed embodiment, every equivalent variations, improvement made based on technical scheme and the behavior such as deliberately deteriorate, protection scope of the present invention all should be belonged to.
Claims (2)
1. the pouring procedure of a valve gap foundry goods, it is characterised in that it concretely comprises the following steps:
(1) first technique, Design of Dies are carried out according to Equilibrium Solidification principle, it is fabricated to mo(u)ld bottom half, mo(u)ld top half and valve gated mold, the cast gate of described valve cover die includes ingate, uses hot side to water ingate, and the width of described ingate is not less than 40, thickness is not more than 7, length is less than 10, and the cast gate of described valve cover die includes down gate, more than the twice of a diameter of valve gap maximum thermal center of described down gate, a diameter of the 50 of described down gate, the head thermal center thickness of described valve gap is 20；
(2) on corresponding hot box shoot core machine, mo(u)ld bottom half core processed, mo(u)ld top half core and cast gate core are penetrated；
(3) repair, assemble core, the core clamping that will assemble with fixture, valve gap casting pouring molding.
The pouring procedure of a kind of valve gap foundry goods the most according to claim 1, it is characterised in that: the material of described valve gap is spheroidal graphite cast-iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310046063.6A CN103084546B (en) | 2013-02-06 | 2013-02-06 | A kind of pouring procedure of valve gap foundry goods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310046063.6A CN103084546B (en) | 2013-02-06 | 2013-02-06 | A kind of pouring procedure of valve gap foundry goods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103084546A CN103084546A (en) | 2013-05-08 |
| CN103084546B true CN103084546B (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310046063.6A Active CN103084546B (en) | 2013-02-06 | 2013-02-06 | A kind of pouring procedure of valve gap foundry goods |
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| CN (1) | CN103084546B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557086B (en) * | 2013-10-30 | 2016-03-02 | 宁波裕隆汽车制泵有限公司 | The manufacture method of the gear chamber mould on automobile pump |
| CN103586414A (en) * | 2013-11-04 | 2014-02-19 | 沈阳化工大学 | Method for production of small and medium-sized steel castings by coated sand technology |
| CN103862000B (en) * | 2014-04-04 | 2016-04-27 | 江苏力源金河铸造有限公司 | A kind of end cap foundry goods core shell vertical-parting casting on flat casting technique |
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|---|---|---|---|---|
| CN101020226A (en) * | 2007-03-15 | 2007-08-22 | 繁昌县金贸铸造有限责任公司 | Flange casting process |
| CN201455180U (en) * | 2009-06-23 | 2010-05-12 | 河南省西峡汽车水泵股份有限公司 | Ductile iron non-riser casting die |
| CN202174212U (en) * | 2011-08-01 | 2012-03-28 | 繁昌县胜达铸造厂 | Coated sand valve cover die |
| CN102554130A (en) * | 2012-01-31 | 2012-07-11 | 西峡县内燃机进排气管有限责任公司 | Casting method for high-nickel austenite nodular cast iron exhaust manifold |
| CN102814465A (en) * | 2012-04-06 | 2012-12-12 | 河北锐利机械科技有限公司 | Spheroidal graphite cast iron casting mould and riser-free casting method adopting same |
| CN102861894A (en) * | 2012-09-23 | 2013-01-09 | 衡阳中钢衡重铸锻有限公司 | Production method for wind power equipment stator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58151936A (en) * | 1982-03-02 | 1983-09-09 | Toyota Motor Corp | Construction of core for casting |
| CN102418028B (en) * | 2011-12-12 | 2013-04-24 | 大丰市海纳机械有限公司 | Impeller special for automobile cooling water pump and casting process of impeller |
| CN102489667B (en) * | 2011-12-16 | 2014-05-28 | 十堰市泰祥实业有限公司 | Casting method for spheroidal graphite cast iron main bearing cap of gasoline engine and casting mould applying same |
-
2013
- 2013-02-06 CN CN201310046063.6A patent/CN103084546B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101020226A (en) * | 2007-03-15 | 2007-08-22 | 繁昌县金贸铸造有限责任公司 | Flange casting process |
| CN201455180U (en) * | 2009-06-23 | 2010-05-12 | 河南省西峡汽车水泵股份有限公司 | Ductile iron non-riser casting die |
| CN202174212U (en) * | 2011-08-01 | 2012-03-28 | 繁昌县胜达铸造厂 | Coated sand valve cover die |
| CN102554130A (en) * | 2012-01-31 | 2012-07-11 | 西峡县内燃机进排气管有限责任公司 | Casting method for high-nickel austenite nodular cast iron exhaust manifold |
| CN102814465A (en) * | 2012-04-06 | 2012-12-12 | 河北锐利机械科技有限公司 | Spheroidal graphite cast iron casting mould and riser-free casting method adopting same |
| CN102861894A (en) * | 2012-09-23 | 2013-01-09 | 衡阳中钢衡重铸锻有限公司 | Production method for wind power equipment stator |
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| CN103084546A (en) | 2013-05-08 |
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