CN203409233U - Low-pressure casting die of large shell castings - Google Patents
Low-pressure casting die of large shell castings Download PDFInfo
- Publication number
- CN203409233U CN203409233U CN201320510036.5U CN201320510036U CN203409233U CN 203409233 U CN203409233 U CN 203409233U CN 201320510036 U CN201320510036 U CN 201320510036U CN 203409233 U CN203409233 U CN 203409233U
- Authority
- CN
- China
- Prior art keywords
- running channel
- pouring gate
- flange
- communicated
- die
- 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 relates to a die for casting large shells, in particular to a low-pressure casting die of large shell castings. The low-pressure casting die comprises a low-pressure steel die, middle molding sand cores, and pouring gate sand cores. The middle molding sand cores and the pouring gate sand cores are arranged in the steel die, the number of the middle molding sand cores is two, the number of the pouring gate sand cores is two, and the two middle molding sand cores are symmetrically arranged in the horizontal direction. Each pouring gate sand core comprises a main pouring gate and branch pouring gates, the number of the branch pouring gates is two, one is a flange pouring gate, and the other is an inclined-fork pouring gate; the flange pouring gate is in a T-shaped tee shape, one end of the flange pouring gate is communicated with the main pouring gate, and the other two ends of the flange pouring gate are communicated with shell flanges of two cavities respectively; one end of the inclined-fork pouring gate is communicated with the main pouring gate, the other end of the inclined-fork pouring gate is communicated with a inclined-fork flange of one cavity, and the two pouring gate sand cores are symmetrically arranged. The low-pressure casting die has the advantages of being reasonable in structure, high in die utilization rate, low in cost, and capable of guaranteeing casting concretion in order.
Description
Technical field
The utility model relates to a kind of mould of casting large-scale housing, specifically a kind of low pressure casting die for casting large-scale shell casting.
Background technology
At present, high-voltage switch gear casting producer, to large-scale Shell-Class foundry goods, adopts sand mold low pressure or sand mold gravity foundry technology, as Shell of circuit breaker more than 35kV more.This type of foundry goods, adopts one of a mould more, and the die space utilization rate of using is low, and sand use amount is large, and cost is high, uses box moulding, and labor strength is large; In addition, due to the longer dimension of shell casting, even if oblique fork is set at middle part and in middle part casting, still occurs aluminium liquid solidification phenomenon in order, cause foundry goods to produce the casting flaws such as pore, loose, shrinkage cavity, thereby affect product quality.
Summary of the invention
The utility model provides a kind of rational in infrastructure in order to overcome above-mentioned defect, and mould utilization rate is high, and cost is low, guarantees the low pressure casting die of the large-scale shell casting of foundry goods consecutive solidification.
The technical solution adopted in the utility model is: a kind of low pressure casting die of large-scale shell casting, comprise low pressure punching block and be arranged on middle moulding core and the running channel core in punching block, described middle moulding core is corresponding with the enclosure interior shape being cast, described running channel core is communicated with the die cavity of middle moulding core outside, it is characterized in that: described middle moulding core and running channel core are two, two middle moulding cores are symmetrical in the horizontal direction; Described running channel core comprises main running channel and minute running channel, main running channel is sprue, the outer setting ceramic thermal insulation cover of main running channel, dividing running channel is two, respectively flange running channel and oblique fork running channel, flange running channel is T-shaped threeway shape, and its one end is communicated with main running channel, and another two ends are communicated with the shell flange position of two die cavities respectively; Tiltedly fork running channel one end is communicated with main running channel, and the other end is communicated with the oblique fork flange position of a die cavity, and two running channel cores are for being arranged symmetrically with.
In the utility model, in the inner side of the shell flange of die cavity, be provided with ring flange loose piece, this ring flange loose piece is annular.
The utility model adopts mould two chambeies to be arranged symmetrically with, and effectively utilizes punching block inner space, reduces the use of material, reduce costs, cross gate place arranges running channel core, can reduce the rate of set of running channel, guarantee foundry goods consecutive solidification, reduce casting flaw, improve the quality of foundry goods.The utility model also arranges ring flange loose piece at the back side of shell flange, can guarantee the smooth demoulding of foundry goods.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
The specific embodiment
Now by reference to the accompanying drawings the utility model is further described, Fig. 1 is a kind of embodiment of the present utility model, comprise low pressure punching block 1 and be arranged on middle moulding core 2 and the running channel core in punching block, described middle moulding core 2 is corresponding with the enclosure interior shape being cast, described running channel core is communicated with the die cavity of middle moulding core 2 outsides, in the utility model, described middle moulding core 2 and running channel core are two, and two middle moulding cores 2 are symmetrical in the horizontal direction; Described running channel core comprises main running channel 4 and minute running channel, main running channel 4 is sprue, the outer setting ceramic thermal insulation cover of main running channel 4, dividing running channel is two, respectively flange running channel 5 and oblique fork running channel 6, flange running channel 5 is T-shaped threeway shape, and its one end is communicated with main running channel 4, and another two ends are communicated with the shell flange position of two die cavities respectively; Tiltedly fork running channel 6 one end are communicated with main running channel 4, and the other end is communicated with the oblique fork flange position of a die cavity, and two running channel cores are for being arranged symmetrically with.In the present embodiment, in the inner side of the shell flange of die cavity, be provided with ring flange loose piece 3, this ring flange loose piece 3 is annular.
Utility model adopts mould two chambeies to be arranged symmetrically with, and two die cavities is set low pressure punching block 1 is interior, adopts two running channel cores to cast simultaneously, can make full use of punching block inner space, reduces the use of material, reduces costs; The utility model has also been done improvement to running channel core shape and structure, adopted two kinds of minutes running channels respectively to foundry goods relatively the thickest position be that the position, stage casing of flange and foundry goods is that oblique fork is cast simultaneously, both avoided cooling too fast, can reduce the rate of set of running channel again, guarantee foundry goods consecutive solidification, especially in part there is shrinkage cavity phenomenon in thick large flange to avoid shell casting, reduces casting flaw, improves the quality of foundry goods.Due to large-scale shell casting longer dimension, foundry goods is the easy shrinkage tear in ring flange place when cooling contraction, and the utility model also arranges ring flange loose piece 3 at the back side of shell flange, while increasing ring flange contraction, toward the activity of inner side, is conducive to the smooth demoulding of foundry goods simultaneously.
The utlity model has rational in infrastructurely, mould utilization rate is high, and cost is low, guarantees the feature of foundry goods consecutive solidification.
Claims (2)
1. the low pressure casting die of a large-scale shell casting, comprise low pressure punching block and be arranged on middle moulding core and the running channel core in punching block, described middle moulding core is corresponding with the enclosure interior shape being cast, described running channel core is communicated with the die cavity of middle moulding core outside, it is characterized in that: described middle moulding core and running channel core are two, two middle moulding cores are symmetrical in the horizontal direction; Described running channel core comprises main running channel and minute running channel, main running channel is sprue, the outer setting ceramic thermal insulation cover of main running channel, dividing running channel is two, respectively flange running channel and oblique fork running channel, flange running channel is T-shaped threeway shape, and its one end is communicated with main running channel, and another two ends are communicated with the shell flange position of two die cavities respectively; Tiltedly fork running channel one end is communicated with main running channel, and the other end is communicated with the oblique fork flange position of a die cavity, and two running channel cores are for being arranged symmetrically with.
2. the low pressure casting die of large-scale shell casting according to claim 1, is characterized in that: the inner side at the shell flange of die cavity is provided with ring flange loose piece, and this ring flange loose piece is annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510036.5U CN203409233U (en) | 2013-08-21 | 2013-08-21 | Low-pressure casting die of large shell castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510036.5U CN203409233U (en) | 2013-08-21 | 2013-08-21 | Low-pressure casting die of large shell castings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203409233U true CN203409233U (en) | 2014-01-29 |
Family
ID=49972161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320510036.5U Expired - Fee Related CN203409233U (en) | 2013-08-21 | 2013-08-21 | Low-pressure casting die of large shell castings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203409233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148613A (en) * | 2014-08-21 | 2014-11-19 | 无锡蠡湖叶轮制造有限公司 | One-die-four-cavity die for compressor casing low-pressing casting |
-
2013
- 2013-08-21 CN CN201320510036.5U patent/CN203409233U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148613A (en) * | 2014-08-21 | 2014-11-19 | 无锡蠡湖叶轮制造有限公司 | One-die-four-cavity die for compressor casing low-pressing casting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206425523U (en) | A kind of casting die being easily stripped | |
| CN203900397U (en) | Casting mold for conductive static contact base cast piece of high-voltage switch circuit breaker | |
| CN202461484U (en) | Automobile air conditioning compressor cylinder body die-casting die | |
| CN204353427U (en) | A kind of automotive brake disc-casting mould | |
| CN203409233U (en) | Low-pressure casting die of large shell castings | |
| CN201921978U (en) | Dissolved die casting equipment | |
| CN203649321U (en) | Casting mold of automotive air conditioning compressor cylinder | |
| CN203076531U (en) | Large thick-walled casting pouring system and casting mould | |
| CN202343915U (en) | Cast die for aluminum alloy current transformer (CT) shell for high-voltage switch | |
| CN102941316B (en) | Production method for machine tool guide rail casts | |
| CN202490916U (en) | High-scale open-type gating system for aluminum alloy casting | |
| CN202377485U (en) | Large plate gear casting mould for textile machinery | |
| CN204770593U (en) | Spiral water channel psammitolite structure | |
| CN202097364U (en) | U-shaped outer chiller for container corner fittings | |
| CN203030867U (en) | Large-scale plate mould used for ultrahigh pressure switch | |
| CN203778697U (en) | Top casting feeding structure for planetary frame | |
| CN202963383U (en) | Large-sized aluminum bronze sleeve casting mold | |
| CN203711775U (en) | Shrinkage-loosing-resistant hub gating system | |
| CN202192250U (en) | Aluminum alloy oil pump cover low pressure casting double cast gate die | |
| CN202146978U (en) | Improved hub runner | |
| CN105499493A (en) | Casting technology for preventing shrinkage and porosity | |
| CN203330350U (en) | Novel clamp body casting device | |
| CN104607599A (en) | Ultrasonic test block casting production process | |
| CN203448621U (en) | Casting mould of impeller of electric submersible pump | |
| CN203170917U (en) | Combined gate valve body casting mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20150821 |
|
| EXPY | Termination of patent right or utility model |