CN105108106A - Improved low pressure casting vehicle wheel die - Google Patents
Improved low pressure casting vehicle wheel die Download PDFInfo
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- CN105108106A CN105108106A CN201510549217.2A CN201510549217A CN105108106A CN 105108106 A CN105108106 A CN 105108106A CN 201510549217 A CN201510549217 A CN 201510549217A CN 105108106 A CN105108106 A CN 105108106A
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Abstract
The invention discloses an improved low pressure casting vehicle wheel die. The fillet radius of an ejection die is arranged to be from 15 mm to 30 mm; a groove is formed in the position, corresponding to a spoke, of the ejection die, the contour of the groove is designed according to the shape of the spoke, and the wall thickness at the groove ranges from 15 mm to 25 mm, so that the die strength is guaranteed; 2-16 shallow depressions are formed in the bottom face of the groove, and the depth of each shallow depression ranges from 1 mm to 2.5 mm; an air hole is formed in the position, corresponding to a spoke hot spot, of the interior of the groove, and the depth of the air hole ranges from 5 mm to 15 mm; the groove is welded, sealed and covered with an iron sheet which is shaped like a Chinese character 'sui', an air pipe penetrates into the air hole through a through hole which is reserved in the iron sheet, and cooling air is applied to the die.
Description
Technical field
The present invention 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 present invention seeks to the deficiency overcoming existing mold, propose a kind of low pressure casting wheel mould of improvement, the present invention 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.
Technical scheme of the present invention 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.
Structure of the present invention 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 present invention 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 present invention 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 |
|---|---|---|---|
| CN201510549217.2A CN105108106A (en) | 2015-09-01 | 2015-09-01 | Improved low pressure casting vehicle wheel die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510549217.2A CN105108106A (en) | 2015-09-01 | 2015-09-01 | Improved low pressure casting vehicle wheel die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105108106A true CN105108106A (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510549217.2A Pending CN105108106A (en) | 2015-09-01 | 2015-09-01 | Improved low pressure casting vehicle wheel die |
Country Status (1)
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| CN (1) | CN105108106A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424656A (en) * | 2016-08-31 | 2017-02-22 | 滨州盟威戴卡轮毂有限公司 | Combined cooling low-pressure casting hub die provided with constant-temperature and constant-pressure water tank |
| CN107838380A (en) * | 2017-12-06 | 2018-03-27 | 浙江万丰奥威汽轮股份有限公司 | A kind of mold pushing mechanism for reducing aluminium alloy wheel hub spoke root internal porosity |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003290903A (en) * | 2002-04-04 | 2003-10-14 | Hitachi Metals Ltd | Metallic mold for casting light alloy wheel with low pressure and method for producing light alloy wheel |
| CN201419238Y (en) * | 2009-04-17 | 2010-03-10 | 刘建高 | Gravity-leaning rotary casting formation device |
| CN102416444A (en) * | 2011-12-06 | 2012-04-18 | 宁波灿东模具技术有限公司 | Casting method for hub and water mist cooling device used in casting method |
| CN102601341A (en) * | 2012-03-26 | 2012-07-25 | 中信戴卡轮毂制造股份有限公司 | Improved air cooling system of wheel mould |
| CN103990781A (en) * | 2014-06-08 | 2014-08-20 | 黄石鑫华轮毂有限公司 | Upper die water inlet cooling device of automobile hub gravity die |
| CN204524187U (en) * | 2014-12-15 | 2015-08-05 | 安徽汇联机械工业有限公司 | A kind of hub mold |
| CN204867359U (en) * | 2015-09-01 | 2015-12-16 | 中信戴卡股份有限公司 | Modified low pressure casting wheel mould |
-
2015
- 2015-09-01 CN CN201510549217.2A patent/CN105108106A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003290903A (en) * | 2002-04-04 | 2003-10-14 | Hitachi Metals Ltd | Metallic mold for casting light alloy wheel with low pressure and method for producing light alloy wheel |
| CN201419238Y (en) * | 2009-04-17 | 2010-03-10 | 刘建高 | Gravity-leaning rotary casting formation device |
| CN102416444A (en) * | 2011-12-06 | 2012-04-18 | 宁波灿东模具技术有限公司 | Casting method for hub and water mist cooling device used in casting method |
| CN102601341A (en) * | 2012-03-26 | 2012-07-25 | 中信戴卡轮毂制造股份有限公司 | Improved air cooling system of wheel mould |
| CN103990781A (en) * | 2014-06-08 | 2014-08-20 | 黄石鑫华轮毂有限公司 | Upper die water inlet cooling device of automobile hub gravity die |
| CN204524187U (en) * | 2014-12-15 | 2015-08-05 | 安徽汇联机械工业有限公司 | A kind of hub mold |
| CN204867359U (en) * | 2015-09-01 | 2015-12-16 | 中信戴卡股份有限公司 | Modified low pressure casting wheel mould |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424656A (en) * | 2016-08-31 | 2017-02-22 | 滨州盟威戴卡轮毂有限公司 | Combined cooling low-pressure casting hub die provided with constant-temperature and constant-pressure water tank |
| CN107838380A (en) * | 2017-12-06 | 2018-03-27 | 浙江万丰奥威汽轮股份有限公司 | A kind of mold pushing mechanism for reducing aluminium alloy wheel hub spoke root internal porosity |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151202 |