CN203235946U - Sprue bush for low-pressure casting - Google Patents
Sprue bush for low-pressure casting Download PDFInfo
- Publication number
- CN203235946U CN203235946U CN 201320284852 CN201320284852U CN203235946U CN 203235946 U CN203235946 U CN 203235946U CN 201320284852 CN201320284852 CN 201320284852 CN 201320284852 U CN201320284852 U CN 201320284852U CN 203235946 U CN203235946 U CN 203235946U
- Authority
- CN
- China
- Prior art keywords
- sprue bush
- diameter
- sprue
- inner cavity
- casting
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a sprue bush for low-pressure casting, wherein a sprue bush body (2') is a gray iron casting, and is placed in a cover plate (1), the lower end of the sprue bush body (2') is sealed and connected with a riser tube (2), the upper end of the sprue bush body (2') is in contact with a casting mould, and an insulating sleeve (3) which is made from refractory materials is arranged between the sprue bush body (2') and the cover plate (1). The shape of an inner cavity of the sprue bush is divided into two parts, the lower portion of the inner cavity of the sprue bush is of a cylinder shape, the diameter of the sprue bush is same to the diameter of an inner cavity of the riser tube, the upper portion of the inner cavity of the sprue bush is of a horn shape, and the diameter of the top end of the inner cavity of the sprue bush is the diameter of a sprue gate. The sprue bush for the low-pressure casting can guarantee a final solidification region to be in a B region through the structure, and enables metal liquid in an A region after being filled and insulated to flow back to a crucible.
Description
Technical field
The utility model relates to a kind of low-pressure casting apparatus, especially a kind of durable sprue bush that makes things convenient for molding.
Background technology
Sprue bush between liquid-lifting tube of low pressure foundry and the casting mold has ceramic material and cast iron quality two classes, and ceramic sprue bush good heat preservation performance is convenient to feeding a casting, but frangible, consumes greatly, and the cast iron sprue bush is durable, but heat insulating ability is poor.
For the Cast Iron Holding cover, for making well feeding of foundry goods, its inner chamber is generally made upwards increase horn-like shown in 2 left sides among the figure, is convenient to like this guarantee that the pressurize process of setting has sufficient Feeding channel to enter casting mold from the molten metal of stalk, but, the sprue bush of this shape situation that easily solidify prior to the B district in the A district among the generation figure during die sinking pickup, easily ruptures at the B place, the metal that A solidifies in the district namely can not reflux by stalk, be difficult to again result in blockage from top taking-up, impact is produced.
Summary of the invention
Solidify the blockage problem that can not take out and produce in order to solve the sprue bush inner metal liquid, the utility model provides a kind of low pressure casting sprue bush, and this sprue bush good heat preservation performance is durable, and is difficult for stopping up.
The utility model is that the technical scheme that its technical problem of solution adopts is, the sprue bush body is gray iron casting, the muff that the lower end cover has refractory material to make, be tightly connected with stalk, sprue bush cavity shape bottom is tubular, and diameter is identical with the stalk intracavity diameter, and top is connected with casting mold is airtight, inner chamber is tubaeform, and top end diameter is the down gate diameter.Fill in the pressurize process of setting of type after complete, A district, below sectional area is large than top B district sectional area in the sprue bush, amount of stored heat is large, the heat-retaining condition in A district is also good than the B district, thereby B district molten metal solidifies prior to the A district, during the die sinking pickup, easily in the fracture of A place, the not solidified molten metal in A district is back in the crucible by stalk.
The beneficial effects of the utility model are that sprue bush is durable, is difficult for stopping up, and is easy to change, and helps to improve low pressure casting productivity ratio.
Description of drawings
Accompanying drawing is sprue bush structure contrast schematic diagram among low pressure casting sprue bush prior art and the utility model embodiment
1. cover plates among the figure, 2. prior art sprue bush cross section (half), this body section of sprue bush (half) among 2 ' embodiment, 3. stalk, 4. refractory material muff among the embodiment
The specific embodiment
When carrying out low pressure casting production, after placing stalk (3), place in the above sealing gasket, after being set to refractory material muff (4) on the sprue bush body (2 '), be put into above the stalk, one end of refractory material muff (4) is arranged near stalk, then lay cover plate (1), again installation mold.Fill the complete rear pressurize of type when solidifying, the aluminium liquid at A place, lower end is owing to the insulation effect of refractory material muff 3 is difficult for solidifying in the sprue bush, solidify prior to the A place at the aluminium liquid place, B place that sectional area is little, thermal diffusivity is good, A place aluminium liquid is back in the crucible along stalk after the pressure release, the metal that B solidifies at the place takes out with foundry goods, has guaranteed that the metal that sprue bush is not solidified stops up.
Claims (1)
1. sprue bushing for low pressure casting, comprise sprue bush body and muff, it is characterized in that: the sprue bush body is gray iron casting, is placed on the cover plate inner ring, the muff that has a refractory material to make between sprue bush body and cover plate, sprue bush lower end and stalk are tightly connected, the cavity shape bottom is tubular, and diameter is identical with the stalk intracavity diameter, and top is connected with casting mold is airtight, inner chamber is tubaeform, and top end diameter is the down gate diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320284852 CN203235946U (en) | 2013-05-16 | 2013-05-16 | Sprue bush for low-pressure casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320284852 CN203235946U (en) | 2013-05-16 | 2013-05-16 | Sprue bush for low-pressure casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203235946U true CN203235946U (en) | 2013-10-16 |
Family
ID=49313280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320284852 Expired - Fee Related CN203235946U (en) | 2013-05-16 | 2013-05-16 | Sprue bush for low-pressure casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203235946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522116A (en) * | 2015-12-15 | 2016-04-27 | 天津立中车轮有限公司 | Composite sprue bush for aluminum alloy wheel die |
-
2013
- 2013-05-16 CN CN 201320284852 patent/CN203235946U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522116A (en) * | 2015-12-15 | 2016-04-27 | 天津立中车轮有限公司 | Composite sprue bush for aluminum alloy wheel die |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101733386A (en) | Die cast mould gating system | |
| CN102211166A (en) | Molding process for casting aluminum casting by using sand mold under low pressure | |
| CN101934363A (en) | Lower-pressure casting type high-pressure solidification molding system by using magnesium alloy hub electromagnetic pump | |
| CN106735086A (en) | A kind of casting device | |
| CN104607595A (en) | Large-scale casting device for aluminum-water utensil | |
| CN201644754U (en) | Heat insulation liquid guide system for casting and low-pressure casting machine | |
| CN107891124B (en) | Loader cylinder head lost foam provided with multiple arch bridge cross runners and casting process | |
| CN105339109A (en) | Hot chamber caster for aluminum alloy | |
| CN102886496A (en) | Casting feeding method and device | |
| CN203235946U (en) | Sprue bush for low-pressure casting | |
| CN202527690U (en) | Solidification system for manufacturing magnesium alloy casting ingot | |
| CN204209090U (en) | Novel metal die casting | |
| CN202021336U (en) | Sprue bushing for low pressure casting | |
| CN207996984U (en) | A kind of cast gate sheath assembly | |
| CN208178374U (en) | A kind of high-speed rail water use efficiency device for sand coated iron mould line abrading-ball template | |
| CN207071670U (en) | A kind of big part forming machine of crucible furnace formula compression solidification aluminium alloy | |
| CN103894588B (en) | A kind of pouring procedure of the casting system for the shaping of high temperature alloy directional solidification | |
| CN202316963U (en) | Moving die structure of die-casting die for Renault L38-type automobile engine suspension bracket | |
| CN201807706U (en) | Dual-section type crystallizer for hollow cast ingot | |
| CN205183728U (en) | A cold chamber die casting molding machine open type feed cylinder that is used for half solid -state die -casting to take shape | |
| CN204108284U (en) | Non-ferrous alloy low pressure casting die | |
| CN201399572Y (en) | Horizontal continuous casting mould | |
| CN109304448A (en) | A kind of big part molding machine of crucible furnace formula compression solidification aluminium alloy | |
| CN204234701U (en) | Motor bottom end cover compression mod | |
| CN202762962U (en) | Casting mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20140516 |