CN202655556U - Molten metal suspension pouring device for slurry pump wear-resistant part - Google Patents
Molten metal suspension pouring device for slurry pump wear-resistant part Download PDFInfo
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- CN202655556U CN202655556U CN 201220217956 CN201220217956U CN202655556U CN 202655556 U CN202655556 U CN 202655556U CN 201220217956 CN201220217956 CN 201220217956 CN 201220217956 U CN201220217956 U CN 201220217956U CN 202655556 U CN202655556 U CN 202655556U
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Abstract
The utility model discloses a molten metal suspension pouring device for a slurry pump wear-resistant part. The molten metal suspension pouring device comprises an arc-shaped cross gate, wherein an inner pouring gate is communicated between the cross gate and a cavity of the wear-resistant part, and the upper end of the cross gate is communicated with a down gate; and the molten metal suspension pouring device is characterized in that the sidewall of the upper part of the cross gate is provided with a pouring cup, a suspension cup is mounted on the upper end of the down gate, the upper end of the suspension cup is connected with a hopper, and a guide gate is connected between the suspension cup and the pouring cup. A compact crystal structure can not be formed in a pouring process, thus reducing the metal abrasion resistance, and the molten metal suspension pouring device can form compact crystal structures in the pouring process so as to improve the strength, the tenacity and the abrasion resistance of wear-resistant castings.
Description
Technical field
The utility model relates to a kind of casting technique of overcurrent wear parts of slag stock pump, specifically belongs to a kind of molten metal suspension apparatus for pouring of slag stock pump wearing piece.
Technical background
Because the overcurrent wear parts of slag stock pump under condition of work, is subject in the high speed slip hard point and washes away and cause and avoid damage, and under the acting in conjunction of cavitation erosion and corrosion, so that the metal surface material loss is quite serious, so that lost efficacy.The cast casting defective of using traditional sand casting process to produce is more, and it is not very high causing yield rate; And cast out alloying component and sometimes do not reach designing requirement, to such an extent as to service time is shorter.According to statistics, the flow passage components normal operation life-span of slag stock pump is 20 ~ 30 days.Only have the change casting Technology Design, improve casting yield; Improve the metal structure structure, can improve the anti-wear performance of metal surface, improve intensity, toughness and the wearability of metal.
The utility model content
In casting process, can not form fine and close tissue morphology in order to overcome wear resistant cast iron, cause the decline of the anti-wear performance of metal, the utility model provides a kind of molten metal suspension apparatus for pouring of slag stock pump wearing piece, can be in casting process, form finer and close texture, to improve intensity, toughness and the wearability of wear resistance castings.
The technical solution of the utility model is as follows:
A kind of molten metal suspension apparatus for pouring of slag stock pump wearing piece, include the cross gate of arc, be communicated with ingate between the die cavity of cross gate and wearing piece, the upper end of cross gate is connected sprue, it is characterized in that: described cross gate upper portion side wall is provided with cup, the upper end of sprue is equipped with the cup that suspends, and the upper end of the cup that suspends is connected with hopper, is connected with the guiding running channel between described suspension cup and the cup.
Be provided with by-pass valve control between described suspension cup and the hopper.
Die cavity at wearing piece is provided with rising head.
The application of the utility model in the casting of slag stock pump flow passage components, the backplate quality is 74kg, according to normal casting Technology Design, the minimum sectional area of ingate is 8.0cm2, sprue: cross gate: ingate=2.0:1.5:1.Wear resistant cast iron is in process of setting, and shrinkage is larger, thus need to be at three feeding heads of stacking on the highest plane, and concrete technology is seen figure one.This technique is the technological design of traditional sand casting of backplate Foundry Production.Increased a suspension running gate system on original basis.The suspension running gate system can with the metal dust for preparing in advance, be increased in the molten metal by this running gate system in casting process, reduces the overheated zone, enlarges the equiax crystal district, promotes the generation of tiny equiax crystal.Ingate in the utility model, cross gate, sprue, cup, rising head are substantially the same with the running gate system of traditional sand casting, for no other reason than that along with the adding of suspending agent, the flowability of molten metal descends, the running gate system of this part has increased some, find that by test of many times it is best that size increases about 15%.The utility model is the suspension cup, is the guiding running channel, is by-pass valve control, is hopper.The major advantage of this running gate system has been a centrifugal suspension cup, after molten metal pours into cup, namely rotates around its center line after the side tangential direction enters the cup that suspends, and then flows into casting mold by sprue.When only having Proportionality design reasonable of the cup that suspends, guiding running channel, sprue, just can make suspending agent and aluminium alloy in the hopper mix and steadily flow in the casting mold.In order to make hopper can adapt to the foundry goods of different model, below hopper, increased a by-pass valve control, pour into a mould different foundry goods, valve size is adjusted to different sizes as requested.
In process of production, by using this Suspending Cast, wear resistance castings there is no casting flaw, and yield rate is brought up to more than 90%, and the foundry goods structural constituent satisfies the design mix requirement basically.The foundry goods that new technology is produced, under identical working condition, be about 3 months service life.And because new technology has been accelerated solidifying of metal, original rising head has been dwindled 30%, improved the casting technique yield rate of metal, reduced the consumption of molten metal.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
Referring to accompanying drawing, a kind of molten metal suspension apparatus for pouring of slag stock pump wearing piece, include the cross gate 2 of arc, be communicated with ingate 1 between the die cavity of cross gate 2 and wearing piece, the upper end of cross gate 2 is connected sprue 3, cross gate 2 upper portion side wall are provided with cup 8, the upper end of sprue is equipped with the cup 4 that suspends, the upper end of suspension cup 4 is connected with hopper 7, suspend and be connected with guiding running channel 5 between cup 4 and the cup 8, suspending is provided with by-pass valve control 6 between cup 4 and the hopper 7, is provided with rising head 9 at the die cavity of wearing piece.
Claims (3)
1. the molten metal suspension apparatus for pouring of a slag stock pump wearing piece, include the cross gate of arc, it is characterized in that: be communicated with ingate between the die cavity of cross gate and wearing piece, the upper end of cross gate is connected sprue, it is characterized in that: described cross gate upper portion side wall is provided with cup, the upper end of sprue is equipped with the cup that suspends, and the upper end of the cup that suspends is connected with hopper, is connected with the guiding running channel between described suspension cup and the cup.
2. the molten metal suspension apparatus for pouring of slag stock pump wearing piece according to claim 1 is characterized in that: be provided with by-pass valve control between described suspension cup and the hopper.
3. the molten metal suspension apparatus for pouring of slag stock pump wearing piece according to claim 1, it is characterized in that: the die cavity at wearing piece is provided with rising head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220217956 CN202655556U (en) | 2012-05-15 | 2012-05-15 | Molten metal suspension pouring device for slurry pump wear-resistant part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220217956 CN202655556U (en) | 2012-05-15 | 2012-05-15 | Molten metal suspension pouring device for slurry pump wear-resistant part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202655556U true CN202655556U (en) | 2013-01-09 |
Family
ID=47450489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220217956 Expired - Fee Related CN202655556U (en) | 2012-05-15 | 2012-05-15 | Molten metal suspension pouring device for slurry pump wear-resistant part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202655556U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583663A (en) * | 2016-12-22 | 2017-04-26 | 常州中车汽车零部件有限公司 | Casting method for turbine shell |
| CN110202092A (en) * | 2019-07-03 | 2019-09-06 | 成都桐林铸造实业有限公司 | A kind of cylinder cap mold of oil production machine compressor |
-
2012
- 2012-05-15 CN CN 201220217956 patent/CN202655556U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583663A (en) * | 2016-12-22 | 2017-04-26 | 常州中车汽车零部件有限公司 | Casting method for turbine shell |
| CN106583663B (en) * | 2016-12-22 | 2018-12-07 | 常州中车汽车零部件有限公司 | A kind of turbine case casting method |
| CN110202092A (en) * | 2019-07-03 | 2019-09-06 | 成都桐林铸造实业有限公司 | A kind of cylinder cap mold of oil production machine compressor |
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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: 20130109 Termination date: 20140515 |