CN201030420Y - Magnesium alloy metal mold casting mold - Google Patents
Magnesium alloy metal mold casting mold Download PDFInfo
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- CN201030420Y CN201030420Y CNU2007200707272U CN200720070727U CN201030420Y CN 201030420 Y CN201030420 Y CN 201030420Y CN U2007200707272 U CNU2007200707272 U CN U2007200707272U CN 200720070727 U CN200720070727 U CN 200720070727U CN 201030420 Y CN201030420 Y CN 201030420Y
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Abstract
A magnesium alloy metal mold casting die belongs to the technical field of foundry. The utility model comprises a head feeding portion, a sampling portion, a straight running channel, an upper inner running channel, and a lower inner running channel. The connection and position relation of the utility model is that the head feeding portion is positioned right above the sampling portion, the upper inner running channel and the straight running channel form an angle of 70 degrees which is inclined upward and is connected with the head feeding portion, further the lower inner running channel which is vertical with the straight running channel is connected with the sampling portion. Being used in the alloy smelting and casting technology, the utility model has the advantages of simple technology, small operation capacity, less material consumption and the like, further the disadvantages of microporosity, oxide inclusion, hot cracking and the like which are existed in castings are overcame.
Description
Technical field
The utility model relates to a kind of mould of casting technology field, specifically is a kind of casting Mg alloy with metal mould mould.
Background technology
Magnesium alloy is carried out the enterprise and the laboratory of production application and research thereof and need be carried out small-scale casting to magnesium alloy, can the stable performance that guarantee the cast magnesium alloy sample be the key factor that influences experimental result.And the used for magnesium alloy casting mould is the key factor that influences the cast magnesium alloy performance.
There is not metal type dies at present in the national standard about magnesium alloy, magnesium alloy sand casting sample standard (GB1177-91) is only arranged, this standard has been introduced sand mold single casting sample and running and feeding system that magnesium alloy is suitable for, traditional sand casting is compared with metal mold, the technology of sand casting is complicated, workload is big, and consumptive material is many, waters more and its unstable properties of the magnesium alloy sample defects that casts out.Cause some units to continue to use Al-alloy metal pattern tool and come liquid magnesium alloy is carried out casting and sampling, carry out mechanics performance determining.
Find by prior art documents, " in " Birmasil " (122-141 page or leaf) of casting handbook the 3rd volume casting nonferrous alloy chapter 2, describe aluminium alloy smelting, casting process and Al-alloy metal mold casting sample casting system in detail.Yet the characteristics of solidifying of magnesium alloy itself are different from aluminium alloy, and the freezing range of magnesium alloy is bigger usually, are a kind of mushy freezing modes, if feeding is insufficient under liquid, are easy to produce coagulation defects such as micro-shrinkage porosite in the foundry goods; On the other hand, magnesium alloy is easy to oxidation, requires in the alloy liquid cavity filling process to flow steadily, avoids the appearance of oxide inclusion in the casting process.If adopt Al-alloy metal pattern tool to pour into a mould magnesium alloy, can not effectively solve above-mentioned two aspect problems.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of casting Mg alloy with metal mould mould is provided, and is simple in structure, handling ease.Advantages such as the use of the utility model in the alloy melting casting process has work simplification, and workload is little, and consumptive material is few, and overcome foundry goods and have microporosity, oxide inclusion, defectives such as fire check.
The utility model is achieved through the following technical solutions, and the utility model comprises: riser feeding position, sampling portion, sprue, last ingate, following ingate.Described sprue top is provided with the cast gate position, and the cast gate position is an inverted round table.Connection between them and position relation: the riser feeding position is positioned at directly over the sampling portion; Last ingate and sprue are 70 ° of angles, connect the riser feeding position obliquely; Following ingate is vertical with sprue, connects sampling portion.
Described sampling portion is a cuboid.
Described riser feeding position comprises: cuboid and be inverted bucking ladder, cuboid be positioned at be inverted bucking ladder directly over.
Described sampling portion is a cuboid, and its size is: high 40mm, wide 20mm, long 130mm.
In the riser feeding position, described cuboid, its size is: high 40mm, wide 45mm, long 130mm; Described inversion bucking ladder, its size is: high 30mm, the wide 45mm in top, the wide 20mm in bottom, long 130mm.
Described sprue, last ingate waters 5 diameters in descending and is 20mm, the long 20mm of following ingate.
The cast gate position of described sprue top, its size is: high 15mm, top diameter 40mm, base diameter 20mm, the radius of curvature of sprue bottom sphere is 20mm.
The utility model also comprises alloy liquid filter, and alloy liquid filter comprises: cup, screen pack or ceramic filter piece (screen pack and ceramic filter piece are as the parts that can replace each other); Cup places the sprue top, places screen pack or ceramic filter piece between cup and sprue.
Described cup is an inverted hollow round platform, and its size is: middle high 50mm, top diameter 80mm, base diameter 40mm.
Described cup, its material is: 45# steel (C:0.42-0.50; Si:0.17-0.37; Mn:0.50-0.80; Cr :≤0.2; Ni≤0.30; Cu≤0.25; P≤0.035; S≤0.035 is with reference to GB/T699-1999).
Described screen pack is meant: refractory fibre screen pack or stainless steel cloth, its pore diameter range is: 0.2mm-1mm.
Described ceramic filter piece is meant: aluminium oxide (or magnesia) ceramic filter piece, filter thickness is 20mm.
The wall thickness of the utility model mould is 20mm.
Used making material of the present utility model is casting pig or mould steel.
The operation principle of the utility model design: the utility model need be preheated to before cast and require 200 ℃～250 ℃ of temperature.In the casting cycle, liquid magnesium alloy fills type through sprue and following ingate to mould inside again after the filtration system of cup bottom is filtered.In the cavity filling process molten metal earlier by bottom sampling portion to riser feeding position, top flow backwards (bottom filling).Owing to adopted side sprue bottom filling, two ingates to distribute, go up the design of ingate up and down horizontal by 20 degree angles, can effectively avoid pouring into a mould the turbulent condition in the cavity filling process in the casting cycle, guarantee that as far as possible alloy liquid is with stable type, the consecutive solidification of filling of layer flow mode.Riser feeding position, die main body part top comprises an inverted bucking ladder shape, this position effect is equivalent to a rising head, guarantee that bottom sampling portion can have certain pressure head and can fully solidify feeding when solidifying, the alloy liquid of this part steadily fills type, final set by last ingate.Composition sampling, anti-corrosion sample sampling etc. can be carried out in the rising head position during sampling.The effect of last ingate is, in case the liquid magnesium alloy of having cast solidifies, hindered the refluence of molten metal, last ingate can guarantee that the molten metal that continues to cast is filled to mould through last ingate, help to control casting cycle, can either guarantee the from bottom to top stable type that fills of clean molten metal, can guarantee that again the top rising head carries out sufficient feeding, farthest reduced the institutional framework defective that the magnesium alloy sampling point exists in process of setting, as pore and loose, guaranteed the stability of its structure and performance.Can more accurate reaction alloying component change magnesium alloy tissue and Effect on Performance.
The utility model has also comprised alloy liquid filter, alloy liquid filter can adopt screen pack, also can adopt foam ceramic filter pieces such as magnesia, oxidation filter, according to the pore size filter difference of screen pack (foamed ceramics piece), the oxide inclusion in the liquid magnesium alloy more than the 10 μ m can be removed.
The magnesium alloy sample defects of the utility model casting is few, and microscopic structure and stable mechanical property can accurately be reacted the influence of alloying element variation to micro-casting of magnesium alloy and mechanical property.The utility model has avoided traditional sand casting process complicated, and workload is big, and consumptive material is many, waters shortcomings such as more and its unstable properties of the magnesium alloy sample defects that casts out.Avoided continuing to use Al-alloy metal pattern tool and caused foundry goods to have microporosity, oxide inclusion, defectives such as fire check.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Fig. 3 is the B-B cross-sectional schematic of Fig. 1.
Structural representation in Fig. 4 the utility model behind interpolation cup and screen pack or the ceramic filter piece.
Fig. 5 is the A-A cross-sectional schematic of Fig. 4.
Fig. 6 is the B-B cross-sectional schematic of Fig. 4.
1. riser feeding positions wherein, 2. sampling portion, 3. sprue is 4. gone up ingate, 5. descends ingate, 6. cup, 7. screen pack or ceramic filter piece.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated: present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed embodiment and process, but protection domain of the present utility model is not limited to following embodiment.
Shown in Fig. 1,2,3,4,5,6, the utility model comprises: riser feeding position 1, sampling portion 2, sprue 3, last ingate 4, following ingate 5.Its connection and position relation: riser feeding position 1 is positioned at directly over the sampling portion 2; Last ingate 4 and sprue 3 are 70 ° of angles, connect riser feeding position 1 obliquely; Following ingate 5 is vertical with sprue 3, connects sampling portion 2.Sampling portion 2 is a cuboid.Riser feeding position 1 comprises: cuboid and be inverted bucking ladder, cuboid be positioned at be inverted bucking ladder directly over.Sprue 3 tops are provided with the cast gate position, and the cast gate position is an inverted round table.Sampling portion 2 is a cuboid, and its size is: high 40mm, wide 20mm, long 130mm.In the riser feeding position 1, described cuboid, its size is: high 40mm, wide 45mm, long 130mm; Be inverted bucking ladder, its size is: high 30mm, the wide 45mm in top, the wide 20mm in bottom, long 130mm.Sprue 3, last ingate 4, following ingate 5 diameters are 20mm, following ingate 5 long 20mm.The cast gate position of sprue 3 tops, its size is: high 15mm, top diameter 40mm, base diameter 20mm, the radius of curvature of sprue 3 bottom spheres is 20mm.The wall thickness of present embodiment mould is 20mm.
Present embodiment also comprises alloy liquid filter, and alloy liquid filter comprises: cup 6, screen pack or ceramic filter piece 7; Cup 6 places sprue 3 tops, places screen pack or ceramic filter piece 7 between cup 6 and sprue 3.Cup 6 is an inverted hollow round platform, and its size is: middle high 50mm, top diameter 80mm, base diameter 40mm.Screen pack 7 is meant: refractory fibre screen pack or stainless steel cloth, its pore diameter range is: 0.2mm-1mm.Ceramic filter piece 7 is meant: aluminium oxide (or magnesia) ceramic filter piece, filter thickness is 20mm.
Present embodiment is a kind of suitable magnesium alloy solidification casting characteristic, integrate magnesium alloy liquid steadily fills type, alloy feeding, filtering and impurity removing, has the used for magnesium alloy permanent mold casting mould of stable high castability.Under the identical process conditions (alloying component, cast temperature etc.) of assurance, water the magnesium alloy ingot performance that casts out and have good stability and repeatability.Present embodiment waters the magnesium alloy ingot properties of sample that casts out and adopts Al-alloy metal pattern tool and adopt traditional sand casting to compare, and defective is few, and mechanical property improves more than 20%.
Claims (6)
1. casting Mg alloy with metal mould mould, comprise: riser feeding position (1), sampling portion (2), sprue (3), last ingate (4), following ingate (5), described sprue (3) top is provided with the cast gate position, the cast gate position is an inverted round table, it is characterized in that, riser feeding position (1) be positioned at sampling portion (2) directly over; Last ingate (4) and sprue (3) are 70 ° of angles, connect riser feeding position (1) obliquely; Following ingate (5) is vertical with sprue (3), connects sampling portion (2).
2. casting Mg alloy with metal mould mould as claimed in claim 1 is characterized in that, described riser feeding position (1) comprising: cuboid and be inverted bucking ladder, cuboid be positioned at be inverted bucking ladder directly over.
3. casting Mg alloy with metal mould mould as claimed in claim 1 is characterized in that, described sampling portion (2) is a cuboid.
4. casting Mg alloy with metal mould mould as claimed in claim 1 is characterized in that, also comprises alloy liquid filter, and alloy liquid filter comprises: cup (6), screen pack or ceramic filter piece (7); Cup (6) places sprue (3) top, places screen pack or ceramic filter piece (7) between cup (6) and sprue (3).
5. casting Mg alloy with metal mould mould as claimed in claim 4 is characterized in that, described screen pack is meant: refractory fibre screen pack or stainless steel cloth, its pore diameter range is: 0.2mm-1mm.
6. casting Mg alloy with metal mould mould as claimed in claim 4 is characterized in that, described ceramic filter piece, and filter block thickness is 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200707272U CN201030420Y (en) | 2007-06-07 | 2007-06-07 | Magnesium alloy metal mold casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200707272U CN201030420Y (en) | 2007-06-07 | 2007-06-07 | Magnesium alloy metal mold casting mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201030420Y true CN201030420Y (en) | 2008-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200707272U Expired - Lifetime CN201030420Y (en) | 2007-06-07 | 2007-06-07 | Magnesium alloy metal mold casting mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201030420Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527943A (en) * | 2012-03-30 | 2012-07-04 | 辉县市汽车配件有限责任公司 | Overhead choke-flow filter buffer type casting pouring technological method |
| CN103157766A (en) * | 2011-12-08 | 2013-06-19 | 洛阳奇润电力科技有限公司 | High temperature resistance fiber filtration screen application method |
| CN103223468A (en) * | 2013-04-11 | 2013-07-31 | 芜湖乐锐思信息咨询有限公司 | Top pouring type pouring system for casting aluminum alloy metal type cylinder cover |
| CN112139456A (en) * | 2020-10-23 | 2020-12-29 | 齐齐哈尔重型铸造有限责任公司 | Stepped ingate with angle for pouring multilayer casting |
| CN115780738A (en) * | 2023-01-29 | 2023-03-14 | 河北钢研德凯科技有限公司 | A filter equipment and casting device for magnesium alloy casting |
-
2007
- 2007-06-07 CN CNU2007200707272U patent/CN201030420Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157766A (en) * | 2011-12-08 | 2013-06-19 | 洛阳奇润电力科技有限公司 | High temperature resistance fiber filtration screen application method |
| CN102527943A (en) * | 2012-03-30 | 2012-07-04 | 辉县市汽车配件有限责任公司 | Overhead choke-flow filter buffer type casting pouring technological method |
| CN103223468A (en) * | 2013-04-11 | 2013-07-31 | 芜湖乐锐思信息咨询有限公司 | Top pouring type pouring system for casting aluminum alloy metal type cylinder cover |
| CN112139456A (en) * | 2020-10-23 | 2020-12-29 | 齐齐哈尔重型铸造有限责任公司 | Stepped ingate with angle for pouring multilayer casting |
| CN115780738A (en) * | 2023-01-29 | 2023-03-14 | 河北钢研德凯科技有限公司 | A filter equipment and casting device for magnesium alloy casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI AIERSI LIGHT ALLOY PRODUCTS CO., LTD. Free format text: FORMER OWNER: SHANGHAI JIAOTONG UNIV. Effective date: 20081107 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081107 Address after: No. nine, Jing Jing Road, Songjiang hi tech park, Shanghai, 1501: 201615 Patentee after: Shanghai Aiersi Light Alloy Co., Ltd. Address before: No. 800, Dongchuan Road, Shanghai, Minhang District: 200240 Patentee before: Shanghai Jiao Tong University |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080305 |
|
| CX01 | Expiry of patent term |