CN202415659U - Flux impurity screening device and mechanical liquid transfer pump with same - Google Patents
Flux impurity screening device and mechanical liquid transfer pump with same Download PDFInfo
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- CN202415659U CN202415659U CN2011205490526U CN201120549052U CN202415659U CN 202415659 U CN202415659 U CN 202415659U CN 2011205490526 U CN2011205490526 U CN 2011205490526U CN 201120549052 U CN201120549052 U CN 201120549052U CN 202415659 U CN202415659 U CN 202415659U
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- pump
- liquid pump
- bell housing
- housing
- magnesiumalloy
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Abstract
The utility model discloses a flux impurity screening device of a mechanical liquid transfer pump, which belongs to the technical field of magnesium alloy preparation. The flux impurity screening device mainly comprises a screening sleeve and a suspension support, wherein the screening sleeve is basin-shaped, the suspension support consists of four equal-length round steel bars, and the lower ends of the round steel bars forming the suspension support are welded with the outer wall of the screening sleeve. The mechanical liquid transfer pump with the flux impurity screening device comprises a crucible, a crucible cover, a pump body and a liquid transfer pipe, wherein the lower end of the pump body and the screening sleeve form a semi-closed structure. By the aid of the flux impurity screening device, shearing force formed during running of the mechanical liquid transfer pump to magnesium liquid in surrounding area can be effectively reduced, stirring effect of the mechanical liquid transfer pump on molten magnesium of the crucible, caused by vibration, is reduced, and accordingly, perturbance to the molten magnesium alloy at the bottom of the crucible from the mechanical liquid transfer pump is greatly reduced, and quality of magnesium alloy pouring parts is evidently improved. The flux impurity screening device is reasonable in design, and the mounting method is simple and feasible.
Description
Technical field
The invention belongs to the magnesiumalloy preparing technical field, particularly a kind of magnesiumalloy machinery moves the machinery that liquid pump flux is mingled with shielding unit and has this shielding unit and moves liquid pump.
Background technology
Magnesiumalloy has the advantage of high specific tenacity, specific rigidity and reusable edible, and its density is about 64% of aluminium, and 23% of steel is classified as " 21st century green engineering material ".At present, magnesiumalloy is used widely in automobile making, digital communication field, in vehicle structure, adopts lightweight, magnesium alloy materials capable of circulation as far as possible, reduces vehicle complete vehicle weight, to reach the purpose of energy-saving and emission-reduction.Also begun Application of Magnesium at some high-grade digital electronic goods, adopted magnesium alloy materials, light and handy, attractive in appearance, fashion like mobile phone, slr camera and notebook housing.
Because the chemical property of magnesium is very active, very easily form compound under normal temperature or the high temperature with the big element of occurring in nature, when melting in addition with airborne N
2Vigorous reaction generates Mg
3N
2Thereby; How magnesium alloy fused mass carry out pureization; Get rid of the detrimental impurity element, reduce the nonmetal and metal inclusion in the foundry goods tissue to greatest extent, improve the apparent mechanical properties and the chemical property of foundry goods; Being key one ring that exists in the present magnesium alloy smelting process, also is a weak link.Present chemical slag making and physics sedimentation are the purifying method that generally adopts in the magnesium alloy smelting Industrial processes.Mainly with 2# flux magnesium alloy fused mass is carried out refining, through deposition after a while, most of slag deposits is to crucible bottom.
In the castingprocesses of magnesiumalloy, often relate to the liquid problem of moving, move the liquid mode in the Mg alloy castings industrial production at present and mainly contain two kinds: (1) mechanical pump moves liquid; (2) air lift pump moves liquid.The magnesium liquid that air lift pump adopts high pressure gas will seal in the crucible system ejects transfer pipet, and smaller to magnesium melt disturbance in the crucible in operational process, the magnesium melt almost is in relative static balance state, helps keeping the quality of magnesium liquid.But there is complicated operation in air lift pump, crucible for a long time under high temperature, high pressure work be prone to cause creep strain, even break, cause leakage and lead to serious accident; Mechanical pump is relatively simple for structure relatively, cost is low, and mechanical pump moves a kind of simpler and economic approach that liquid is still the transmission of magnesium melt.But the high speed rotating of the impeller of mechanical pump bottom, the shearing force that exists near the magnesium liquid causes the motion of melt; In moving the liquid process, be prone to produce and stir and vibrations, when especially the magnesium liquid level is lower, cause the throw out that is deposited on crucible bottom upwards to rise; Flux is mingled with the stirring come-up; Be inhaled in the transfer pipet, thereby flux is mingled with and is blended in the foundry goods, causes underproof product.Quality and performance to the magnesiumalloy component constitute considerable influence, and scrap rate sharply rises.
Thereby existing magnesium alloy fused mass liquid-transfering device transformed, it is imperative to make it to become a kind of mature technology.
Summary of the invention
The present invention is based on existing machinery pump liquid-transfering device; Below moving liquid pump, add a bell housing; Cut off effectively machinery move liquid pump in operation process to the formed shearing force of its near zone magnesium liquid, and eliminated mechanical pump and in moving the liquid process, be prone to the stirring and the vibrations that produce, reduce the mechanical pump housing because the stirring effect that vibrations are caused crucible magnesium melt; Thereby significantly reduce the perturbation action of mechanical pump, significantly improved the quality of magnesium alloy pouring spare the crucible bottom magnesium alloy fused mass.Reasonable in design through this device of production practice proof, the installation method simple and feasible.
(1) a kind of magnesiumalloy machinery provided by the invention moves liquid pump flux and is mingled with shielding unit; The main separated into two parts of its structure: bell housing and suspension holdfast; Wherein, Bell housing is circle basin shape, and suspension holdfast is made up of four isometric round steel, and round steel lower end and the bell housing outer wall of forming suspension holdfast are weldingly connected.
(2) on (one) said scheme basis, preferred four round steel are evenly distributed on the bell housing outer wall.
(3) on (one) said scheme basis, in general, bell housing wall thickness 3mm, high 22cm, diameter 30mm, round steel diameter are 2～3mm.
The present invention also provides a kind of and has the magnesiumalloy machinery that above-mentioned (one), (two) or (three) said flux is mingled with shielding unit and move liquid pump, and this machinery moves liquid pump and comprises crucible, crucible cover, the pump housing and transfer pipet, and wherein, pump housing lower end and bell housing form the semi-surrounding structure.For forming above-mentioned semi-surrounding structure, can adopt following mode: the splaying is 2～3mm under the bell housing inwall and the pump housing, and the splaying is 3～5mm under the bell housing bottom and the pump housing.The upper end of four round steel hangs on the crucible cover, play supporting role.
Bell housing and support thereof do not contact with transfer pipet with the pump housing mutually, each other the independent motion system.
This device has following technical characterictic:
(1) bell housing and machinery move liquid pump mutually to absolute construction, and machinery moves the complete conductively-closed cover of liquid pump below liquid taking port and surrounds, and is big running fit, bell housing with move the liquid pump fluid inlet around keep 8～10cm gap;
(2) machinery moves liquid pump when work, and magnesium liquid flows into the transfer pipet road from the bell housing top, and in the bell housing zone, bell housing external region fluid is in relative static conditions to mechanical pump to the perturbation control of its surrounding fluid;
(3) bell housing moves separating of liquid pump with machinery, and the vibrations when moving liquid pump work are effectively shielded in bell housing the disturbance that magnesium alloy fused mass caused.
(4) shielding harness of magnesium alloy fused mass transfer device disturbance effect makes bell housing keep static relatively with exterior domain magnesium liquid, and the sedimentary flux slag inclusion of crucible bottom is in inert condition, thereby, guaranteed the pure and quality of magnesium melt when transmission.
In sum, magnesium liquid flows to transfer pipet from bell housing top, and masks effectively and move the liquid pump high speed rotating to the disturbance that liquid causes of crucible bottom magnesium, avoids the crucible bottom appearance unfavorable situation that the dregs of society gain an upper hand.
Beneficial effect of the present invention is: utilize device provided by the invention can overcome effectively in the current magnesiumalloy industrial production that magnesium melt transfer flux is mingled with uncontrollable problem in the mechanical pump, guarantee the purity of magnesium liquid in transmission course to greatest extent.
The present invention's flux of interpolation below moving liquid pump is mingled with shielding unit; Can effectively reducing machinery, to move liquid pump formed to the formed shearing force of its near zone magnesium liquid in operational process; Reduce the mechanical pump housing because the stirring effect that vibrations are caused crucible magnesium melt; Thereby significantly reduce the perturbation action of mechanical pump, significantly improved the quality of magnesium alloy pouring spare the crucible bottom magnesium alloy fused mass.This device is reasonable in design, the installation method simple and feasible.
Description of drawings
Fig. 1 is that flux is mingled with shielding unit structural diagrams intention;
Fig. 2 has the machinery that flux is mingled with shielding unit to move liquid pump;
Label among the figure: 1-bell housing; The 2-suspension holdfast; The 3-pump housing; 4-magnesium liquid; The 5-crucible; The 6-slag; The 7-transfer pipet.
Embodiment
Following embodiment can make those skilled in the art more comprehensively understand the present invention, but does not limit the present invention in any way.
A kind of magnesiumalloy machinery moves liquid pump flux and is mingled with shielding unit; The main separated into two parts of its structure: bell housing 1 and suspension holdfast 2, wherein, bell housing 1 is circle basin shape; Suspension holdfast 2 is made up of four isometric round steel, and round steel lower end and bell housing 1 outer wall of forming suspension holdfast are weldingly connected.Four round steel are evenly distributed on the bell housing outer wall.Bell housing wall thickness 3mm, high 22cm, diameter 30mm, round steel diameter are 2～3mm.
A kind ofly have the magnesiumalloy machinery that above-mentioned flux is mingled with shielding unit and move liquid pump, this machinery moves liquid pump and comprises crucible 5, crucible cover, the pump housing 3 and transfer pipet 7, and the pump housing 3 lower ends and bell housing 1 form the semi-surrounding structure.
The splaying is 2～3mm under the bell housing inwall and the pump housing, and the splaying is 3～5mm under the bell housing bottom and the pump housing.
The upper end of four round steel hangs on the crucible cover, play supporting role.
Bell housing and support thereof do not contact with transfer pipet 7 with the pump housing 3 mutually, each other the independent motion system.
Machinery moves the complete conductively-closed cover of liquid pump below liquid taking port and surrounds, and is big running fit, bell housing with move the liquid pump fluid inlet around keep 8～10cm gap.
Comparative Examples
(1) the AZ31 alloy melt remains on 680 ℃ with temperature after purification is left standstill, and the rotating speed of pump is 0r/min, gets the liquid analysis at pump housing lower end, and analytical results MV is got in 100 times of opticmicroscope observations down 5 times, and being mingled with of being observed is distributed as 0～1/cm
2, inclusion diameter 1～2 μ m;
(2) the AZ31 alloy melt remains on 680 ℃ with temperature after purification is left standstill, and does not add bell housing; The rotating speed of pump is 500r/min, gets the liquid analysis at pump housing lower end, 100 times of opticmicroscope observations down; Get analytical results MV 5 times, being mingled with of being observed is distributed as 10～15/cm
2, inclusion diameter 3～15 μ m;
(3) the AZ31 alloy melt remains on 680 ℃ with temperature, external bell housing after purification is left standstill; The rotating speed of pump is 500r/min, gets the liquid analysis at pump housing lower end, 100 times of opticmicroscope observations down; Get analytical results MV 5 times, being mingled with of being observed is distributed as 0～2/cm
2, inclusion diameter 1～2 μ m.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (8)
1. a magnesiumalloy machinery moves liquid pump flux and is mingled with shielding unit; It is characterized in that: the main separated into two parts of its structure: bell housing (1) and suspension holdfast (2); Wherein, Bell housing (1) is circle basin shape, and suspension holdfast (2) is made up of four isometric round steel, and round steel lower end and bell housing (1) outer wall of forming suspension holdfast are weldingly connected.
2. magnesiumalloy machinery according to claim 1 moves liquid pump flux and is mingled with shielding unit, it is characterized in that: four round steel are evenly distributed on the bell housing outer wall.
3. magnesiumalloy machinery according to claim 1 moves liquid pump flux and is mingled with shielding unit, it is characterized in that: bell housing wall thickness 3mm, and high 22cm, diameter 30mm, round steel diameter are 2～3mm.
4. one kind has the magnesiumalloy machinery that any described flux of claim of claim 1 to 3 is mingled with shielding unit and moves liquid pump; This machinery moves liquid pump and comprises crucible (5), crucible cover, the pump housing (3) and transfer pipet (7), it is characterized in that: the pump housing (3) lower end and bell housing (1) form the semi-surrounding structure.
5. magnesiumalloy machinery according to claim 4 moves liquid pump, it is characterized in that: the splaying is 2～3mm under the bell housing inwall and the pump housing, and the splaying is 3～5mm under the bell housing bottom and the pump housing.
6. magnesiumalloy machinery according to claim 4 moves liquid pump, it is characterized in that: the upper end of four round steel hangs on the crucible cover, play supporting role.
7. magnesiumalloy machinery according to claim 4 moves liquid pump, it is characterized in that: bell housing and support thereof do not contact with transfer pipet (7) with the pump housing (3) mutually, each other the independent motion system.
8. magnesiumalloy machinery according to claim 4 moves liquid pump, it is characterized in that: machinery moves the complete conductively-closed cover of liquid pump below liquid taking port and surrounds, and is big running fit, bell housing with move the liquid pump fluid inlet around keep 8～10cm gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205490526U CN202415659U (en) | 2011-12-23 | 2011-12-23 | Flux impurity screening device and mechanical liquid transfer pump with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205490526U CN202415659U (en) | 2011-12-23 | 2011-12-23 | Flux impurity screening device and mechanical liquid transfer pump with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202415659U true CN202415659U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205490526U Expired - Fee Related CN202415659U (en) | 2011-12-23 | 2011-12-23 | Flux impurity screening device and mechanical liquid transfer pump with same |
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|---|---|
| CN (1) | CN202415659U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107952941A (en) * | 2016-10-18 | 2018-04-24 | 福建省瑞奥麦特轻金属有限责任公司 | A kind of cycle refinement device for being used to continuously prepare aluminium alloy semi-solid slurry |
| CN108060317A (en) * | 2017-12-14 | 2018-05-22 | 宁夏太阳镁业有限公司 | A kind of magnesium metal and magnesium alloy refining method |
-
2011
- 2011-12-23 CN CN2011205490526U patent/CN202415659U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107952941A (en) * | 2016-10-18 | 2018-04-24 | 福建省瑞奥麦特轻金属有限责任公司 | A kind of cycle refinement device for being used to continuously prepare aluminium alloy semi-solid slurry |
| CN108060317A (en) * | 2017-12-14 | 2018-05-22 | 宁夏太阳镁业有限公司 | A kind of magnesium metal and magnesium alloy refining method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190903 Address after: 101407 Beijing city Huairou District Yanqi Economic Development Zone Branch Hing Street No. 11 Patentee after: Research Institute of engineering and Technology Co., Ltd. Address before: 100088, 2, Xinjie street, Beijing, Beijing, Xicheng District Patentee before: General Research Institute for Nonferrous Metals |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20201223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |