CN106001429A - Shrinkage preventing aluminum alloy casting die - Google Patents
Shrinkage preventing aluminum alloy casting die Download PDFInfo
- Publication number
- CN106001429A CN106001429A CN201610531457.4A CN201610531457A CN106001429A CN 106001429 A CN106001429 A CN 106001429A CN 201610531457 A CN201610531457 A CN 201610531457A CN 106001429 A CN106001429 A CN 106001429A
- Authority
- CN
- China
- Prior art keywords
- die body
- aluminum alloy
- casting
- upper mold
- rising head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
Abstract
The invention discloses a shrinkage preventing aluminum alloy casting die. The shrinkage preventing aluminum alloy casting die comprises a lower die body and an upper die body. A gap between the lower die body and the upper die body is a casting cavity, and a product blank is formed in the casting cavity. Dead heads are arranged on the upper die body and communicate with the casting cavity. Annular grooves are formed around the dead heads. Insulating asbestos is arranged in the annular grooves. The lower die body and the upper die body are made of die steel or gray pig iron. Positioning protrusions are arranged at the lower portion of the upper die body, positioning grooves are formed in the upper portion of the lower die body, the positioning protrusions are inserted in the positioning grooves, and the upper die body and the lower die body are firmly connected through bolts. The thermal conductivity of the insulating asbestos in the shrinkage preventing aluminum alloy casting die is about 0.5% of the thermal conductivity of steel, and heat transfer of the dead heads can be effectively prevented; and during casting production, the temperature of molten aluminum at the positions of the dead heads is higher than the temperature of molten aluminum of the product blank by more than 30 DEG C, feeding can be effectively conducted on a thick and large part of the product blank through the molten aluminum at the positions of the dead heads, shrinkage of the product blank is avoided, and the product percent of pass is increased.
Description
Technical field
The present invention relates to permanent mold casting technical field, particularly relate to a kind of anti-shrinkage porosite aluminum alloy cast modeling tool.
Background technology
In aluminum alloy gravity casting product, there is a lot of product to have independent thick big boss, production easily occurs
Shrinkage porosite, for preventing product shrinkage porosite, need to be cooked riser feeding, if doing blind riser, because pattern draft and depanning side
To reason, rising head sectional area less than product cross section amass, under equal keeping warm mode, rising head can not be effective to product
Feeding, because rising head is too small, emits port part and also can not paste blocked up thermal insulation coatings, so product shrinkage porosite can be caused.
Summary of the invention
Present invention seek to address that the deficiencies in the prior art, and provide a kind of anti-shrinkage porosite aluminum alloy cast modeling to have.
The present invention for achieving the above object, by the following technical solutions: a kind of anti-shrinkage porosite aluminum alloy cast modeling have,
Including lower mold and upper mold, the space between described lower mold and upper mold is casting cavity, and product blank is in described casting
Molding in cavity, described upper mold is provided with rising head, and described rising head connects with casting cavity, has around described rising head
Cannelure, is provided with insulation asbestos in described cannelure, described upper mold bottom is provided with positioning convex, and lower mold top sets
Having detent, positioning convex inserts detent, it is achieved positioning function.
Described cannelure thickness is 2～3mm.
The material of described lower mold and upper mold is the one in mould steel or casting pig.
The mode that is fastenedly connected of described upper die and lower die is that bolt connects.
The invention has the beneficial effects as follows: the insulation asbestos thermal conductivity in the present invention is the thermal conductivity about 0.5% of steel,
Can effectively stop the heat transfer of rising head, improve the temperature of rising head, when Foundry Production, rising head position can be brought rapidly up,
Measured, at rising head, temperature of aluminum liquid is higher than product blank temperature of aluminum liquid more than 30 DEG C, and at rising head, aluminum liquid can be right
The product blank effective feeding of thickness large part, it is to avoid product blank shrinkage porosite, improves conforming product rate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
In figure: 1-lower mold；2-product blank；3-upper mold；4-is incubated asbestos；5-rising head；
It is described in detail referring to the drawings below with reference to embodiments of the invention.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
As it is shown in figure 1, a kind of anti-shrinkage porosite aluminum alloy cast modeling tool, including lower mold 1 and upper mold 3, described lower mold
Space between 1 and upper mold 3 for casting cavity, product blank 2 molding in described casting cavity, described on
Mould 3 is provided with rising head 5, and described rising head 5 connects with casting cavity, has cannelure, institute around described rising head 5
Being provided with insulation asbestos 4 in stating cannelure, described upper mold 3 bottom is provided with positioning convex, and lower mold 1 top is provided with fixed
Position groove, positioning convex inserts detent, it is achieved positioning function.
Described cannelure thickness is 2～3mm.
The material of described lower mold 1 and upper mold 3 is the one in mould steel or casting pig.
The mode that is fastenedly connected of described upper mold 3 and lower mold 1 is that bolt connects.
During casting, owing to being incubated the insulation effect of asbestos 4, make the temperature of aluminum liquid at rising head 5 higher than product blank
2 temperature of aluminum liquid, aluminum liquid cooling time, product blank 2 first cools down, at rising head 5 after cool down, so make rising head 5
The aluminum liquid at place is supplemented to the loose part of product blank 2, reaches to prevent the purpose of product blank 2 shrinkage porosite.
Above in conjunction with accompanying drawing, the present invention is exemplarily described, it is clear that the present invention implements not by above-mentioned
The restriction of mode, if the various improvement that the method design that have employed the present invention is carried out with technical scheme, or without
Improve and directly apply to other occasion, all within protection scope of the present invention.
Claims (4)
1. an anti-shrinkage porosite aluminum alloy cast modeling tool, it is characterised in that include lower mold (1) and upper mold (3),
Space between described lower mold (1) and upper mold (3) is casting cavity, and product blank (2) is in described casting
Molding in cavity, described upper mold (3) is provided with rising head (5), and described rising head (5) connects with casting cavity, institute
State rising head (5) and around have cannelure, in described cannelure, be provided with insulation asbestos (4), described upper mold (3)
Bottom is provided with positioning convex, and lower mold (1) top is provided with detent, and positioning convex inserts detent, real
Existing positioning function.
Anti-shrinkage porosite aluminum alloy cast modeling the most according to claim 1 has, it is characterised in that described annular
Slot thickness is 2～3mm.
Anti-shrinkage porosite aluminum alloy cast modeling the most according to claim 1 has, it is characterised in that described lower mold
And the material of upper mold (3) is the one in mould steel or casting pig (1).
Anti-shrinkage porosite aluminum alloy cast modeling the most according to claim 1 has, it is characterised in that described upper mold
And the mode that is fastenedly connected of lower mold (1) is that bolt connects (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610531457.4A CN106001429A (en) | 2016-07-07 | 2016-07-07 | Shrinkage preventing aluminum alloy casting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610531457.4A CN106001429A (en) | 2016-07-07 | 2016-07-07 | Shrinkage preventing aluminum alloy casting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106001429A true CN106001429A (en) | 2016-10-12 |
Family
ID=57108221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610531457.4A Pending CN106001429A (en) | 2016-07-07 | 2016-07-07 | Shrinkage preventing aluminum alloy casting die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106001429A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598088A (en) * | 2017-09-25 | 2018-01-19 | 泰州康乾机械制造有限公司 | A kind of method for lifting thin-wall special-shaped aluminium alloy castings yield rate |
-
2016
- 2016-07-07 CN CN201610531457.4A patent/CN106001429A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598088A (en) * | 2017-09-25 | 2018-01-19 | 泰州康乾机械制造有限公司 | A kind of method for lifting thin-wall special-shaped aluminium alloy castings yield rate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |