CN204867359U - Modified low pressure casting wheel mould - Google Patents
Modified low pressure casting wheel mould Download PDFInfo
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- CN204867359U CN204867359U CN201520669965.XU CN201520669965U CN204867359U CN 204867359 U CN204867359 U CN 204867359U CN 201520669965 U CN201520669965 U CN 201520669965U CN 204867359 U CN204867359 U CN 204867359U
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Abstract
The utility model discloses a modified low pressure casting wheel mould, top mould fillet radius sets up to 15mm -30mm, set up the recess on the position of the corresponding spoke of top mould, the drop center wheel exterior feature designs according to the spoke shape, groove wall thickness 15mm -25mm to guarantee mould intensity, grooved underside sets up scrobicula hole, scrobicula hole degree of depth 1mm -2.5mm, and it is individual that the quantity in scrobicula hole be 2 -16, corresponding spoke thermal center position in the recess and setting up the wind hole, wind bore depth degree is 5mm -15mm, the recess is with along with sections skin welding closing cap, and it is downthehole that via hole that the tuber pipe was then reserved through the iron sheet gos deep into wind, applys cooling air on the mould.
Description
Technical field
The utility model relates to a kind of mould, specifically a kind of low pressure casting die.
Background technology
In aluminum-alloy wheel low pressure casting, spoke root area, due to its thick large design feature, defines obvious thermal center, often the most difficult position of ensuring the quality of products in casting technique.In actual production, the waste product caused because of root defect has a strong impact on the yield rate of wheel.Due to the modeling structure of wheel hub uniqueness, high temperature aluminum liquid in cavity filling process is made to be gathered in spoke root in a large number, and spoke zone line generally can solidify early than root, cut off aluminium liquid Feeding channel, thick so large thermal center will form isolated liquid phase region, if technological design is improper or cooling is arranged unreasonable, shrinkage defect will inevitably be formed at cast-internal, even there will be shrinkage cavity directly outside exposed time serious.Current mould structure can not meet quality and the yield rate requirement of increasingly stringent, therefore, be necessary to improve existing low pressure casting mould structure, solve the casting flaw such as shrinkage porosite, shrinkage cavity that wheel hub root thermal center easily occurs, to improve the forming quality of foundry goods and to enhance productivity.
Summary of the invention
The utility model object is the deficiency overcoming existing mold, a kind of low pressure casting wheel mould of improvement is proposed, the utility model effectively can solve the problem such as shrinkage porosite, shrinkage cavity that spoke root thermal center region easily occurs, shortens process cycle simultaneously, enhances productivity.
The technical solution of the utility model is: a kind of low pressure casting wheel mould of improvement, and backform fillet radius is set to 15mm-30mm; The position of the corresponding spoke of backform arranges groove, and groove profile designs according to spoke shape, and groove wall thickness 15mm-25mm, to ensure mould strength; Groove floor arranges pit, pit degree of depth 1mm-2.5mm, and the quantity of pit is 2-16; In groove, corresponding spoke heat energy-saving position arranges air holes, and the air holes degree of depth is 5mm-15mm; Groove welds capping with sections skin, and airduct then gos deep into, in air holes, being put on mould by cooling-air by the via hole that iron sheet is reserved.
The utility model structure is simple, effectively can alleviate the defect such as shrinkage porosite, shrinkage cavity even eliminated spoke root thermal center and easily occur.Backform fillet part bit architecture is greatly thick, and mould absorbs a large amount of heats, and filleted corner belongs to concave structure, and radiating surface is less, causes heat not easily to shed in this gathering.Therefore, strengthen fillet radius, milling is all to increase this region radiates heat area with the little pit of type groove and processing bottom surface, makes heat more be dispersed in air; And add airduct stretch into internal cooling with iron sheet welding capping, then create a metastable low-temperature space in this heat accumulation district, and obvious interference can not be caused to adjacent regions temperature, the thermograde ensureing wheel hub consecutive solidification just can be obtained like this by rational external refrigeration.
Accompanying drawing explanation
Fig. 1 is backform structural representation of the prior art.
Fig. 2 is the backform structural representation that the utility model improves.
In figure: 1-backform, 2-groove, 3-pit, 4-air holes, 5-with sections skin, 6-airduct.
Detailed description of the invention
Embodiment 1, a kind of low pressure casting wheel mould of improvement, backform fillet radius is set to 15mm; The position of the corresponding spoke of backform arranges groove 2, and groove 2 profile is according to spoke shape, and groove 2 place mold wall thickness 15mm, to ensure mould strength; Groove 2 bottom surface arranges pit 3, pit 3 degree of depth 1mm, and the quantity of pit 3 is 2; In groove 2, corresponding spoke heat energy-saving position arranges air holes 4, and air holes 4 degree of depth is 5mm; Groove 2 welds capping with sections skin 5, and airduct 6 gos deep into, in air holes 4, being put on mould by cooling-air by the via hole that iron sheet is reserved.
Embodiment 2, a kind of low pressure casting wheel mould of improvement, backform fillet radius is set to 20mm; The position of the corresponding spoke of backform arranges groove 2, and groove 2 profile is according to spoke shape, and groove 2 place mold wall thickness 20mm, to ensure mould strength; Groove 2 bottom surface arranges pit 3, pit 3 degree of depth 2mm, and the quantity of pit 3 is 6; In groove 2, corresponding spoke heat energy-saving position arranges air holes 4, and air holes 4 degree of depth is 10mm; Groove 2 welds capping with sections skin 5, and airduct 6 gos deep into, in air holes 4, being put on mould by cooling-air by the via hole that iron sheet is reserved.
Embodiment 3, a kind of low pressure casting wheel mould of improvement, backform fillet radius is set to 30mm; The position of the corresponding spoke of backform arranges groove 2, and groove 2 profile is according to spoke shape, and groove 2 place mold wall thickness 25mm, to ensure mould strength; Groove 2 bottom surface arranges pit 3, pit 3 degree of depth 2.5mm, and the quantity of pit 3 is 10; In groove 2, corresponding spoke heat energy-saving position arranges air holes 4, and air holes 4 degree of depth is 15mm; Groove 2 welds capping with sections skin 5, and airduct 6 gos deep into, in air holes 4, being put on mould by cooling-air by the via hole that iron sheet is reserved.
The utility model compared with prior art increases the area of dissipation of thermal center place backform, and create relatively stable, can independently a to control low temperature environment, this region heat loss is accelerated, and reach the state of relative equilibrium with the heat absorption of mould, this is conducive to the thermograde obtaining suitable root aluminium liquid cooled and solidified, eliminate the casting flaws such as thermal center shrinkage cavity and porosity, improve end product quality and production efficiency.
Claims (4)
1. the low pressure casting wheel mould improved, is characterized in that: backform fillet radius is set to 15mm-30mm; The position of the corresponding spoke of backform arranges groove (2), and groove (2) profile designs according to spoke shape, and groove wall thickness 15mm-25mm, to ensure mould strength; Groove (2) bottom surface arranges pit (3), pit (3) degree of depth 1mm-2.5mm, and the quantity of pit (3) is 2-16; In groove, corresponding spoke heat energy-saving position arranges air holes (4), and air holes (4) degree of depth is 5mm-15mm; Groove (2) welds capping with sections skin (5), and airduct (6) then gos deep into, in air holes (4), being put on mould by cooling-air by the via hole that iron sheet is reserved.
2. the low pressure casting wheel mould of a kind of improvement according to claim 1, is characterized in that: backform fillet radius is set to 15mm; The position of the corresponding spoke of backform arranges groove (2), groove (2) place mold wall thickness 15mm, and groove (2) bottom surface arranges pit (3), pit (3) degree of depth 1mm, and the quantity of pit (3) is 2; In groove, corresponding spoke heat energy-saving position arranges air holes (4), and air holes (4) degree of depth is 5mm.
3. the low pressure casting wheel mould of a kind of improvement according to claim 1, is characterized in that: backform fillet radius is set to 20mm; The position of the corresponding spoke of backform arranges groove (2), and groove (2) profile is according to spoke shape, and groove (2) place mold wall thickness 20mm, groove (2) bottom surface arranges pit 3), pit (3) degree of depth 2mm, the quantity of pit (3) is 6; In groove, corresponding spoke heat energy-saving position arranges air holes (4), and air holes (4) degree of depth is 10mm.
4. the low pressure casting wheel mould of a kind of improvement according to claim 1, is characterized in that: backform fillet radius is set to 30mm; The position of the corresponding spoke of backform arranges groove (2), groove (2) place mold wall thickness 25mm, and groove (2) bottom surface arranges pit (3), pit (3) degree of depth 2.5mm, and the quantity of pit (3) is 10; In groove (2), corresponding spoke heat energy-saving position arranges air holes (4), and air holes (4) degree of depth is 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669965.XU CN204867359U (en) | 2015-09-01 | 2015-09-01 | Modified low pressure casting wheel mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669965.XU CN204867359U (en) | 2015-09-01 | 2015-09-01 | Modified low pressure casting wheel mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204867359U true CN204867359U (en) | 2015-12-16 |
Family
ID=54811787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520669965.XU Expired - Fee Related CN204867359U (en) | 2015-09-01 | 2015-09-01 | Modified low pressure casting wheel mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204867359U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108106A (en) * | 2015-09-01 | 2015-12-02 | 中信戴卡股份有限公司 | Improved low pressure casting vehicle wheel die |
| CN106180647A (en) * | 2016-09-18 | 2016-12-07 | 天津立中汽车铝合金配件有限公司 | A kind of aluminum-alloy wheel low-pressure casting mould for wheel hub limit mould cooling structure |
-
2015
- 2015-09-01 CN CN201520669965.XU patent/CN204867359U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108106A (en) * | 2015-09-01 | 2015-12-02 | 中信戴卡股份有限公司 | Improved low pressure casting vehicle wheel die |
| CN106180647A (en) * | 2016-09-18 | 2016-12-07 | 天津立中汽车铝合金配件有限公司 | A kind of aluminum-alloy wheel low-pressure casting mould for wheel hub limit mould cooling structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20210901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |