CN101579721B - Casting technique of aluminum alloy multi-blade casting part - Google Patents
Casting technique of aluminum alloy multi-blade casting part Download PDFInfo
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- CN101579721B CN101579721B CN2009100999575A CN200910099957A CN101579721B CN 101579721 B CN101579721 B CN 101579721B CN 2009100999575 A CN2009100999575 A CN 2009100999575A CN 200910099957 A CN200910099957 A CN 200910099957A CN 101579721 B CN101579721 B CN 101579721B
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Abstract
The invention discloses a casting technique of an aluminum alloy multi-blade casting part, comprising a pouring system and a pouring technique. The technique is characterized by: (1) setting up a blade mould: subdivision designing blades, namely, dividing the blades into two pieces of blade modules along a longitudinal center line of the blades, arranging pin holes and fastening holes on the blade modules, and arranging an exhaust groove at the periphery of die cavities of the blades; (2) treating and processing the blade modules; (3) retreating, assembling and using the blade modules: 1. preheating the processed blade modules in a partitioning way - coating the blade modules with paint in a partitioning way - cleaning parting surfaces; 2. assembling the mould - positioning the blade modules by pins, fastening the blade modules into a whole by fastening bolts - preheating - pouring. The technique has the advantages that the subdivision design for the blade is adopted, the blade modules are coated with the paint in a partitioning way, and the coating quality of the paint is improved; a reasonable exhaust groove is arranged on the matching surface of the blade modules, so that the sufficient exhaust of the die cavity can be ensured, and the quality and the rate of finished product of the casting part are improved.
Description
Technical field:
The invention belongs to aluminium alloy castings permanent mold casting technical field, relate to the design of the casting technique in the multiple-blade aluminium alloy castings permanent mold casting technical field, the design of mould structure, is control technology in the aluminum alloy multi-blade castings production field specifically.
Background technology:
Blade has a wide range of applications in the class foundry goods such as generator case at the motorcycle cylinder cap.Support class part also adopts the reinforcement of thin-walled mostly, comes foundry goods is carried out loss of weight and improves intensity.There are a lot of problems in this class formation foundry goods in casting technique.
The one, multiple-blade type casting die processing difficulties, die cavity chamber crudy is poor, can't satisfy foundry goods demoulding needs.
The 2nd, its die cavity is very narrow, and not exhaust of metal mold itself in addition, strong, the no deformability of Quench ability make multi-blade casting be easy to generate the bad defective that is shaped.
Be to improve casting quality, generally all adopts the increase venting plug in casting technique, technical measures such as spray coating heat preservation dope layer overcome these difficulties in mold cavity.But still there is following technical difficulty in the non-constant of the effect of these measures in thin-walled reinforcement and multi-blade casting:
1, in narrow die cavity, the venting plug utmost point is set is not easy, even be provided with venting plug, also be very easy to stop up, damage, exhaust effect is also not so good.
2, in narrow die cavity, make very difficulty of coating spraying, the coating coating quality is poor, even sprays less than coating at all; And during sprayed coating, coating very easily stops up venting plug.
3, stripping surface polishing difficulty, die surface is of poor quality, and foundry goods is pulled seriously.
Summary of the invention:
The technical problem to be solved in the present invention is, at existing multiple-blade type casting die processing difficulties, die cavity chamber crudy is poor, can't satisfy foundry goods demoulding needs and multiple-blade class foundry goods exhaust conditions is poor, coating is coated with hangs the inhomogeneous casting forming difficulty that causes, the defective that the foundary loss rate is high.Provide relatively easy the producing of a kind of multiple-blade type casting die processing also can improve die cavity chamber crudy and prevent that in cast venting plug from stopping up, exhaust is smooth and easy, has good exhaust effect, guarantee coating spraying in narrow die cavity is normal, improve the coating coating quality, prevent the casting technique of the aluminum alloy multi-blade foundry goods that foundry goods is pulled.
Technical solution of the present invention is:
The casting technique of aluminum alloy multi-blade foundry goods comprises running gate system and pouring technology, it is characterized in that: also comprise following technological means:
1. the design of blade mold: blade or dark narrow die cavity body are adopted the subdivision design, both from the length of blade center line blade was split into two blade modules, blade module is provided with pin hole and fastener hole.Be provided with air discharge duct along blade die cavity periphery.
2. to the processing of blade module;
Blade roughing → heat treatment → control vane thickness, integral body process peripheral fit dimension and shop bolt hole, screw hole → heat treatment → fine finishining blade → polishing, polish.
3. to the use of blade module:
(1), the blade module after the processing is carried out piecemeal preheating → blade module piecemeal sprayed coating → cleaning die joint;
(2), the pin hole of assembly jig → penetrate on each blade module with pin positions each blade module, intert with trip bolt in the fastener hole on each blade module, blade module to be tightened to one → preheating → cast.
Compared with prior art, the present invention has the following advantages: blade module or dark narrow die cavity are adopted the subdivision design, processing, polishing, polishing had both been made things convenient for to blade module, guaranteed the crudy of mould, the more important thing is and to carry out the piecemeal sprayed coating to blade module, guarantee that cavity surface coating is coated with the extension uniformity, improve the coating coating quality, the blade module mating surface is provided with rational air discharge duct, remain reasonable supporting clearance after the blade module assembling, guarantee the sufficient exhaust of die cavity, improved the quality and the yield rate of foundry goods.
Description of drawings:
Fig. 1 is blade subdivision module assembling schematic diagram among the present invention;
Fig. 2 is blade die cavity air discharge duct schematic diagram among the present invention.
Shown in the figure: 1, blade module, 2, pin hole, 3, fastener hole, 4, air discharge duct.
The specific embodiment:
The invention will be further described below in conjunction with the drawings and specific embodiments:
The casting technique of aluminum alloy multi-blade foundry goods comprises running gate system and pouring technology, also comprises adopting following technological means:
1. the design of blade mold: blade or dark narrow die cavity are adopted the subdivision design, both from the length of blade center line blade was split into two blade modules 1, blade module 1 is provided with pin hole 2 and fastener hole 3, in order to polylith blade module 1 being carried out the pin location, fastening with trip bolt, see Fig. 1.Be provided with air discharge duct 4 along blade die cavity periphery, air discharge duct 4 is linked up with atmosphere.Present embodiment is along blade die cavity periphery conformal 10mm place, design the air discharge duct 4 of degree of depth 0.15mm, and mould is provided with the deep trouth 4 that the degree of depth is 1.5mm, described deep trouth 4 the inners link to each other with the conformal air discharge duct, outer end opening is linked up with atmosphere in the mould outside, sees Fig. 2.To blade module 1 specification requirement: material should adopt the high-quality hot die steel, as H13 etc., and heat treatment HRC38-42.
Blade or dark narrow die cavity are adopted the subdivision design, processing, polishing, polishing had both been made things convenient for to blade module, guaranteed the crudy of mould, the more important thing is and to carry out the piecemeal sprayed coating to blade module, guarantee that cavity surface coating is coated with the extension uniformity, improve the coating coating quality, the blade module mating surface is provided with rational air discharge duct, remain reasonable supporting clearance after the blade module assembling, guarantee the sufficient exhaust of die cavity.
2. the processing of blade module 1:
(1), blade module 1 roughing → heat treatment → control vane thickness;
(2), shape, size, specification and the peripheral fit dimension to blade module 1 carries out integral body processing;
(3), to blade module 1 heat-treat → fine finishining blade → polishing, the polishing.Require polishing, be polished to more than the Ra0.8, to have guaranteed the crudy of mould.
3. the use of mould:
(1), blade module 1 is carried out coating → cleaning die joint of adhering in piecemeal preheating → blade module 1 piecemeal sprayed coating → removing air discharge duct 4; What guaranteed dark cavity surface coating like this evenly is coated with extension.
(2), 2 pairs of each blade modules 1 of pin hole of assembly jig → penetrate on each blade module 1 with pin position, intert with trip bolt blade module 1 to be tightened to one → preheating → cast in the fastener hole 3 on each blade module 1.Wherein, specification requirement is to pin: material should adopt the tool steel of high-quality, as Gr13 etc., and heat-treats: HRC50-55.
Require to remain reasonable supporting clearance after the blade module assembling, guarantee the sufficient exhaust of die cavity.
In blade module, adopt fastening, the pin positioning connection of screw, can realize the fast assembling-disassembling of blade module, to the pulling of foundry goods, improved the quality and the yield rate of foundry goods when preventing form removal.
Claims (3)
1. the casting technique of an aluminum alloy multi-blade foundry goods comprises running gate system and pouring technology, it is characterized in that: also comprise following technological means:
(1), set up blade mold: blade is adopted the subdivision design, promptly from the length of blade center line blade is split into two blade modules, blade module is provided with pin hole and fastener hole; Be provided with air discharge duct along blade die cavity periphery;
(2), to the processing and the processing of blade module;
(3), to the use of blade module:
1., the blade module after the processing is carried out piecemeal preheating → blade module piecemeal sprayed coating → cleaning die joint;
2., the pin hole of assembly jig → penetrate on each blade module with pin positions each blade module, intert with trip bolt in the fastener hole on each blade module, blade module to be tightened to one → preheating → cast.
2. the casting technique of aluminum alloy multi-blade foundry goods as claimed in claim 1 is characterized in that: described processing and processing to blade module, and its step is as follows:
(1), blade module roughing → heat treatment → control vane thickness;
(2), shape, size, specification and the peripheral fit dimension to blade module carries out integral body processing;
(3), to blade module heat-treat → fine finishining blade → polishing, the polishing.
3. the casting technique of aluminum alloy multi-blade foundry goods as claimed in claim 1, it is characterized in that: describedly be provided with air discharge duct along blade die cavity periphery and be meant along blade die cavity periphery conformal 10mm place, design the air discharge duct of degree of depth 0.15mm, and mould is provided with the deep trouth that the degree of depth is 1.5mm, described deep trouth the inner links to each other with the conformal air discharge duct, and outer end opening is linked up at mould outer wall and atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100999575A CN101579721B (en) | 2009-06-21 | 2009-06-21 | Casting technique of aluminum alloy multi-blade casting part |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100999575A CN101579721B (en) | 2009-06-21 | 2009-06-21 | Casting technique of aluminum alloy multi-blade casting part |
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| Publication Number | Publication Date |
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| CN101579721A CN101579721A (en) | 2009-11-18 |
| CN101579721B true CN101579721B (en) | 2011-05-04 |
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| CN2009100999575A Expired - Fee Related CN101579721B (en) | 2009-06-21 | 2009-06-21 | Casting technique of aluminum alloy multi-blade casting part |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773982B (en) * | 2010-02-01 | 2012-01-11 | 上海交大南洋机电科技有限公司 | Fluid coupling pump impeller/turbine casting model |
| CN102211145A (en) * | 2011-05-17 | 2011-10-12 | 湖南中特液力传动机械有限公司 | Gravity casting process of all-metal mould of coupler aluminum part |
| CN103143683A (en) * | 2011-12-07 | 2013-06-12 | 重庆志成机械股份有限公司 | Metal gravity casting mold capable of reducing pressure for mold cavity |
| CN103302243A (en) * | 2012-03-09 | 2013-09-18 | 张志平 | Metal mold gravity casting process for automobile intake pipe |
| CN103252451B (en) * | 2013-05-23 | 2016-06-15 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of manufacture method of low pressure guiding triplet hollow blade |
| CN103722160B (en) * | 2013-12-17 | 2015-10-28 | 鞍钢重型机械有限责任公司 | A kind of casting method of sintering machine tooth plate |
| CN105170909B (en) * | 2015-10-10 | 2017-11-14 | 贵阳中航动力精密铸造有限公司 | A kind of running gate system for hollow single crystal blade |
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