CN201102062Y - Liquid condition processing device of magnesium, aluminum alloy - Google Patents
Liquid condition processing device of magnesium, aluminum alloy Download PDFInfo
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- CN201102062Y CN201102062Y CNU2007200967000U CN200720096700U CN201102062Y CN 201102062 Y CN201102062 Y CN 201102062Y CN U2007200967000 U CNU2007200967000 U CN U2007200967000U CN 200720096700 U CN200720096700 U CN 200720096700U CN 201102062 Y CN201102062 Y CN 201102062Y
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Abstract
The utility model relates to a liquid processing device for magnesium and aluminum alloy. The main technical proposal is that the feeding area of a melting furnace is arranged in a piston cavity of a piston; the piston cavity is communicated with a conveying pipe, and the conveying pipe is communicated with a mold cavity between a dynamic mould and a static mould of an extrusion casting shaping machine; a cutting-off tool is installed on the static mould; an upper and a lower pressure heads are installed on the extrusion casting shaping machine. The utility model integrates, seals and connects the extrusion casting shaping machine and the melting furnace, and solves the problem of difficult mould filling in low-pressure casting of magnesium and aluminum alloy, which shortens the production rhythm, improves the product quality, reduce the alloy residual, net dimension shaping of products; the maintenance is convenient, the cost is low, the products can be directly welded and thermally treated, and applied in technical reform of the prior common die casting machines. The application of the liquid processing device for magnesium and aluminum alloy adds a novel technical platform in the die casting industry, and a novel approach of improving the product quality of magnesium and aluminum alloy.
Description
Technical field
The utility model relates to metal liquid pressure forming field, the liquid processing unit (plant) of especially a kind of magnesium, aluminium alloy.
Background technology
The chemism of magnesium is very strong, in air, liquid magnesium and the rapid oxidation of alloy meeting thereof, burning, and also magnesium alloy is under smelting temperature, its vapour pressure is higher and be easy to evaporation, therefore at first will prevent evaporation, the burning of magnesium alloy when melting and extruding diecast magnesium alloy.In addition, though magnesium alloy is mobile high, but because the specific heat of magnesium alloy is less, latent heat of solidification is less, so the cooling velocity of alloy liquid is fast, in mold cavity, solidify rapidly, necessarily require the quick feed of the short filling time of big flow can avoid the Mg alloy castings cold shut, owe casting flaws such as casting or moulding be bad, therefore feed is the difficult point of magnesium alloy manufacturing process fast.
The Extrution casting technique of magnesium alloy is to carry out with open type casting, vertical fashion of extrusion substantially at present, the quantitative feeding stove of its melting and heat preservation adopts two kinds of charging process of the gentle pressure-controlled constant displacement pump of face advance pump, the magnesium material passes through gooseneck suction injection chamber by the moist closet constant displacement pump of the quantitative feeding stove of melting and heat preservation, the pressured piston filling die cavity that shoots material at a high speed of penetrating, gooseneck and injection chamber inlet are non-sealings.As Chinese patent (patent No.: CN02256766, patent name: a kind of tilt casting device of Mg alloy smelting furnace) disclose a kind of magnesium alloy sealing smelting furnace that uses the solid metallic fluoride to prevent the method for liquid magnesium alloy oxidizing fire and be complementary with it.This smelting furnace is made up of the parallel four link supports mechanisms of two covers, control push rod and engaged transmission part and grooved slide rail, and the distance when its apparatus for pouring can guarantee to pour into a mould between outlet of magnesium liquid and the mould gate is short and invariable to reduce the magnesium liquid oxidation.Non-totally enclosed type ease of connection causes magnesium alloy cast gate place's combustion oxidation or foundry goods cold shut, owes casting flaws such as casting or moulding be bad between this magnesium alloy extruding die casting equipment and the melting furnace, and the shot piston filling die cavity that shoots material at a high speed then makes in the die cavity and more easily to be stranded gas, easily produces pore and misrun.
In addition, the magnesium alloy pressure-casting industry the machine forehearth that generally uses be mainly quantitative casting furnace, molten alloy flows into injection chamber by constant displacement pump by pouring mouth, utilizes drift to be pressed into die cavity at a high speed.Though this method can satisfy the common parts requirement, then can't satisfy the mass property requirement of casting for thin-walled massive plate or complex-shaped heavy parts.Because the magnesium alloy fusing point is low, cooling velocity is fast, casting time is long can comparatively fast to make part can't guarantee that filling is complete because of the magnesium alloy temperature reduces, and then easily produces pore and misrun by drift high speed filling die cavity, and apparatus expensive, the maintenance cost height has specific (special) requirements to material.
The vertical mold closing that developed recently gets up fills type extrusion casint, be to carry out feeding with injection mechanism, but its nominal pressure is limited, and the feeding that does not reach extrusion casint strictly speaking, can't be can be regarded as extrusion casint truly than pressure request.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and the liquid processing unit (plant) of a kind of magnesium, aluminium alloy is provided, and this device is tightly connected make-up machine and fusing body of heater one and adopts vertical extruding, with short production cycle, the casting quality height, the alloy clout is few, and product is bordering on the dead size moulding.
The utility model solves its technical problem and is achieved through the following technical solutions:
The liquid processing unit (plant) of a kind of magnesium, aluminium alloy; constitute by melting furnace, extrusion casint make-up machine; melting furnace is made of fusion zone, heat preservation zone; the extrusion casint make-up machine is made of die cylinder, matched moulds base plate, clamping mechanism oil cylinder, Green's post, dynamic model screen, dynamic model, die cavity, quiet mould, lower carriage, it is characterized in that:
(1). melting furnace is provided with a feed zone in heat preservation zone, this feed zone is arranged in the plunger shaft of piston, and this plunger shaft is communicated with a conveying pipeline and this conveying pipeline directly is communicated with the die cavity of extrusion casint make-up machine;
(2). a cutoff tool is installed on quiet mould, and this cutoff tool is arranged on the conveying pipeline on the quiet mould of extrusion casint make-up machine and is used for the break-make conveying pipeline;
(3). on the dynamic model of extrusion casint make-up machine seaming chuck is installed, on the quiet mould push-down head is installed, these two pressure heads all are communicated with die cavity and push the interior alloy liquid of die cavity.
And described melting furnace is equipped with the connecting rod that lifts of feeding gate, charging connecting rod, pressure safety plate and this pressure safety plate in the plunger shaft of heat preservation zone direction.
And described conveying pipeline can be from heat fused alloy and insulation.
And described cutoff tool is driven by the hydraulic jack that is packed on the lower carriage of quiet mould bottom.
And described push-down head is driven by hydraulic jack.
And, a screw rod mobile device of regulating the cutoff tool supplying position also is installed on the lower carriage of quiet mould bottom.
And described feeding gate is opened by the control of charging connecting rod, and this charging connecting rod is by the gas or the Driven by Hydraulic Cylinder that are packed on the melting furnace.
Advantage of the present utility model and beneficial effect are:
1. this device closely is connected to a seal with make-up machine and fusing body of heater, and alloy liquid is worked all the time in confined conditions, prevents magnesium alloy evaporation, burning, has reduced cooling and oxidation link effectively.
2. this device has been save injection chamber, is that the feed piston by melting furnace makes alloy directly be full of mold cavity to the alloy pressurization, reduces the alloy heat loss, and energy savings has improved production efficiency.
3. this device adopts vertical structure, can realize a stove multimachine, and energy savings reduces floor space, effectively utilizes the space; And, make gas all the time on liquid level top because alloy is to enter die cavity from mold bottom, and avoid wrapping up in the gas phenomenon, help the smooth discharge of gas, reduce pore, improve the part internal soundness.
4. this device can be produced high low-end product, only is full of cut-out and gets final product when producing low-end product; And when producing high-end product, owing to be converted into extruding force and the impulsive force that applies all the time in the solid-state process greater than 100MPA by liquid state at alloy, can realize liquid-solid attitude extruding and liquid forging, make the finer and close consolidation of alloy interior tissue, the mechanical performance that improves part reaches more than 1/3.
5. this device moist closet in the middle of melting furnace adopts stirring technique, can reduce the composition segregation phenomena of alloy and can make the composite base material material.
6. this device adopts this processing technology (associatings such as casting, casting are squeezed, casting forging), makes a few near net-shape moulding of part, cuts the waste, and reduces following process, and yield rate improves, and reduces manufacturing cost.
7. this device can form certain negative pressure by the perseveration of pressure head, helps enhancing product performance, and does not have or few clout cake, can fully improve stock utilization.
8. the utility model is tightly connected make-up machine and fusing body of heater one and adopts vertical pressing method to solve the problem that the low pressure casting magnesium alloy fills the type difficulty, reduce floor space, shortened productive temp, improved parts quality, reduced the alloy clout, product is bordering on the dead size moulding; And easy to maintenance, with low cost, product can directly weld and heat treatment, also can be applicable to the technological transformation on the existing common die casting machine.The application of this device will make the die casting industry increase a new technology platform, for improving magnesium, alloy product quality-seeking to a new approach.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present utility model;
Fig. 2 is the enlarged drawing of overlooking of the melting furnace of Fig. 1;
Fig. 3 is the structure enlarged drawing of the melting furnace of Fig. 1;
Fig. 4 is magnesium of the present utility model, aluminum alloy melt hydraulic transmission principle schematic diagram.
The specific embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
The liquid processing unit (plant) of this magnesium, aluminium alloy is made of melting furnace and extrusion casint make-up machine two parts, and the two connects by conveying pipeline 8.The melting furnace 1 of the related prior art of the utility model comprises fusion zone 2, heat preservation zone 3, and an agitator 4 is installed in heat preservation zone; The extrusion casint make-up machine of related prior art comprises that die cylinder 9, matched moulds base plate 10, clamping mechanism oil cylinder 11, Green's post 12, dynamic model screen 14, dynamic model 15, die cavity 16, quiet mould 20 and lower carriage 19 constitute; be die cavity between dynamic model and the quiet mould, in some make-up machines, also comprise the screw rod mobile device 23 of an adjustable position of adjusting.Innovation part of the present utility model is:
About melting furnace:
Melting furnace is provided with a feed zone in heat preservation zone, this feed zone is arranged in the plunger shaft of piston 7, and this plunger shaft is communicated with the connection that is connected with the die cavity of extrusion casint make-up machine of conveying pipeline and this conveying pipeline; Melting furnace is equipped with feeding gate 5, charging connecting rod 26 in the plunger shaft of heat preservation zone direction, feeding gate is opened by the control of charging connecting rod and driven lifting by the cylinder 24 that is packed on the melting furnace; At the melting furnace piston side wall one pressure safety plate 6 is installed, this pressure safety plate installs one and lifts connecting rod 25, lifts the replaceable pressure safety plate of connecting rod by this; Pressure safety plate in the present embodiment is set to two.
Conveying pipeline between melting furnace and the make-up machine is from heat fused alloy and insulating tube, realizes the flowability of magnesium, aluminum alloy melt.
About working and forming machine:
One cutoff tool 21 is installed on quiet mould, this cutoff tool is arranged on the conveying pipeline on the quiet mould of extrusion casint shaping mechanism and is used to block conveying pipeline, cutoff tool is driven by the hydraulic jack 22 that is packed on the lower carriage of quiet mould bottom, the screw rod mobile device is installed on the lower carriage of quiet mould bottom, is used to regulate the supplying position of cutoff tool.
Installing installation push-down head 17 on pressure head 13, the quiet mould on the dynamic model of machine-shaping mechanism, this push-down head is driven by the hydraulic jack 18 that is packed on the quiet mould.Upper and lower pressure head is communicated with die cavity and pushes the interior alloy liquid of die cavity.Upper and lower pressure head can be separately positioned on any position of dynamic model, quiet mould, because of its structure is a prior art, does not therefore provide its concrete structure.
Operation principle of the present utility model is:
This device is made up of right side extruder and left side melting furnace, and melting furnace divides three zones---and be fusion zone, insulated and stirred district and piston high pressure material extrusion district.At present, feed is the difficult point of magnesium alloy manufacturing process fast, and this device is by pressure control, big specific pressure magnesium alloy to be charged into mold cavity fast, has avoided intermediate link, guarantees that alloy is full of die cavity; And alloy liquid enters from the bottom, has reduced to wrap up in the gas tendency.After feeding gate was closed, seaming chuck and push-down head be rollback simultaneously, and mold cavity forms negative pressure, and charging connecting rod rollback is opened feeding mouth, and piston moves downward fast, and alloy liquid enters mold cavity by conveying pipeline.When reaching certain pressure in the die cavity, cutoff tool ejects and turn-offs conveying pipeline, and and then seaming chuck and push-down head (can design every 5 pressure heads) are exerted pressure to die cavity simultaneously, can form the above pressure of 100MP, makes part at three compression compacted unders.In whole production processes, conveying pipeline and mold cavity remain heated condition, and for complex parts, the existing heating of mould has cooling again, can guarantee that so promptly filling can ensure the quality of products and enhance productivity again, thereby can guarantee that magnesium, aluminium alloy are at the TUBE BY LIQUID EXTRUSION compacted under.Because alloy liquid is to work under pressure all the time, when pressure reaches higher, can cause certain damage to body of heater, so offer two pressure safety plates on furnace wall, bottom, feed cylinder pressure area; When fluid pressure overstepped the extreme limit, two safety plates were opened by force, play the pressure release effect, and the protection body of heater is intact.
This device has been cancelled injection device, and closely being rigidly connected by conveying pipeline between melting furnace and the working and forming machine is a seal, and conveying pipeline has the heat tracing structure, and alloy liquid is all the time in closed environment.Melting furnace increases by a feed zone in heat preservation zone, the piston by melting furnace is to the pressurization of alloy liquid, and alloy liquid directly is full of mold cavity by melting furnace through conveying pipeline, and mold cavity is as proportioning device, and is quantitatively very accurate.Have cutoff tool between conveying pipeline and the working and forming machine, design has upper and lower pressure head structure in the single lead screw ex truding briquetting machine.Before the topping up, the cutoff tool carrier frequency channel break, the pressure head rollback forms the die cavity negative pressure.When carrying out topping up, the cutoff tool passage is opened.After alloy liquid is full of die cavity, by pressure sensing, by cutoff tool with the topping up carrier frequency channel break.Alloy enters die cavity from mold bottom, can a stove multimachine.
This device is according to die cavity product quality requirements, and die cavity product alloy is converted in the solid-state process by liquid state, and push-down head can be to continue all the time die cavity product metal is applied extruding force.Push-down head applies extruding force to die cavity product metal, and pressure should be greater than 100MPa.The product of producing is can weld and heat treatment.When die cavity product quality requirements was not high, pressure head can not exerted pressure yet.
Claims (7)
1. the liquid processing unit (plant) of a magnesium, aluminium alloy; constitute by melting furnace, make-up machine; melting furnace is made of fusion zone, heat preservation zone; the extrusion casint make-up machine is made of die cylinder, matched moulds base plate, clamping mechanism oil cylinder, Green's post, dynamic model screen, dynamic model, die cavity, quiet mould, lower carriage, it is characterized in that:
(1). melting furnace is provided with a feed zone in heat preservation zone, this feed zone is arranged in the plunger shaft of piston, and this plunger shaft is communicated with a conveying pipeline and this conveying pipeline directly is communicated with the die cavity of make-up machine;
(2). a cutoff tool is installed on quiet mould, and this cutoff tool is arranged on the conveying pipeline on the quiet mould of extrusion casint make-up machine and is used for the break-make conveying pipeline;
(3). on the dynamic model of extrusion casint make-up machine seaming chuck is installed, on the quiet mould push-down head is installed, these two pressure heads all are communicated with die cavity and push the interior alloy liquid of die cavity.
2. the liquid processing unit (plant) of a kind of magnesium according to claim 1, aluminium alloy is characterized in that: described melting furnace is equipped with the connecting rod that lifts of feeding gate, charging connecting rod, pressure safety plate and this pressure safety plate in the plunger shaft of heat preservation zone direction.
3. the liquid processing unit (plant) of a kind of magnesium according to claim 1, aluminium alloy is characterized in that: described conveying pipeline can be from heat fused alloy and insulation.
4. the liquid processing unit (plant) of a kind of magnesium according to claim 1, aluminium alloy is characterized in that: described cutoff tool is driven by the hydraulic jack that is packed on the lower carriage of quiet mould bottom.
5. the liquid processing unit (plant) of a kind of magnesium according to claim 1, aluminium alloy is characterized in that: described push-down head is driven by hydraulic jack.
6. the liquid processing unit (plant) of a kind of magnesium according to claim 4, aluminium alloy is characterized in that: the screw rod mobile device that an adjusting cutoff tool supplying position also is installed on the lower carriage of quiet mould bottom.
7. the liquid processing unit (plant) of a kind of magnesium according to claim 2, aluminium alloy is characterized in that: described feeding gate is opened by the control of charging connecting rod, and this charging connecting rod is by the gas or the Driven by Hydraulic Cylinder that are packed on the melting furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200967000U CN201102062Y (en) | 2007-07-12 | 2007-07-12 | Liquid condition processing device of magnesium, aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200967000U CN201102062Y (en) | 2007-07-12 | 2007-07-12 | Liquid condition processing device of magnesium, aluminum alloy |
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| Publication Number | Publication Date |
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| CN201102062Y true CN201102062Y (en) | 2008-08-20 |
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| CNU2007200967000U Expired - Fee Related CN201102062Y (en) | 2007-07-12 | 2007-07-12 | Liquid condition processing device of magnesium, aluminum alloy |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019400A (en) * | 2010-12-23 | 2011-04-20 | 清华大学 | Method and die for manufacturing engine cylinder sleeve casting by using extrusion casting process |
| CN102179496A (en) * | 2011-04-25 | 2011-09-14 | 中信戴卡轮毂制造股份有限公司 | Improved double-chamber heat-preservation furnace |
| CN102240791A (en) * | 2011-06-30 | 2011-11-16 | 哈尔滨工业大学 | Device and method for hydraulic injection filled type extrusion cast forming of molten aluminum magnesium alloy |
| CN102441653A (en) * | 2011-12-12 | 2012-05-09 | 湖南湖大三佳车辆技术装备有限公司 | Multi-gating composite liquid stamping device and process |
| CN103418772A (en) * | 2012-05-18 | 2013-12-04 | 无锡蠡湖叶轮制造有限公司 | Full-automatic multi-stage metal-mold aluminum alloy injection compression method and machine |
| CN104493125A (en) * | 2014-12-02 | 2015-04-08 | 中国科学院力学研究所 | Double-bin refining furnace applied to metal component movement micro pressure casting forming method |
| CN107900314A (en) * | 2017-12-28 | 2018-04-13 | 重庆仟和镁业科技有限公司 | The production technology of overall magnesium alloy chair framework |
| CN108637030A (en) * | 2018-05-08 | 2018-10-12 | 安徽科技学院 | The liquid extrusion molding device of brittleness solder band |
| CN108817350A (en) * | 2018-07-13 | 2018-11-16 | 安徽思源三轻智能制造有限公司 | The feeding mechanism of liquid forging machine |
| CN109373755A (en) * | 2018-10-14 | 2019-02-22 | 昆山建金工业设计有限公司 | A kind of device of gold element and antimony element composite material |
| CN111570754A (en) * | 2020-07-02 | 2020-08-25 | 黑龙江工业学院 | Magnesium-aluminum alloy die-casting device and magnesium-aluminum alloy die-casting is with component that deflects |
| CN111745139A (en) * | 2020-07-02 | 2020-10-09 | 黑龙江工业学院 | Magnesium-aluminum alloy casting method and magnesium-aluminum alloy casting position adjusting method |
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2007
- 2007-07-12 CN CNU2007200967000U patent/CN201102062Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102019400B (en) * | 2010-12-23 | 2015-08-05 | 清华大学 | Extrution casting technique is utilized to manufacture method and the mould of engine cylinder sleeve foundry goods |
| CN102019400A (en) * | 2010-12-23 | 2011-04-20 | 清华大学 | Method and die for manufacturing engine cylinder sleeve casting by using extrusion casting process |
| CN102179496A (en) * | 2011-04-25 | 2011-09-14 | 中信戴卡轮毂制造股份有限公司 | Improved double-chamber heat-preservation furnace |
| CN102240791A (en) * | 2011-06-30 | 2011-11-16 | 哈尔滨工业大学 | Device and method for hydraulic injection filled type extrusion cast forming of molten aluminum magnesium alloy |
| CN102240791B (en) * | 2011-06-30 | 2013-02-13 | 哈尔滨工业大学 | Device and method for hydraulic injection filled type extrusion cast forming of molten aluminum magnesium alloy |
| CN102441653A (en) * | 2011-12-12 | 2012-05-09 | 湖南湖大三佳车辆技术装备有限公司 | Multi-gating composite liquid stamping device and process |
| CN103418772A (en) * | 2012-05-18 | 2013-12-04 | 无锡蠡湖叶轮制造有限公司 | Full-automatic multi-stage metal-mold aluminum alloy injection compression method and machine |
| CN104493125B (en) * | 2014-12-02 | 2017-02-08 | 中国科学院力学研究所 | Double-bin refining furnace applied to metal component movement micro pressure casting forming method |
| CN104493125A (en) * | 2014-12-02 | 2015-04-08 | 中国科学院力学研究所 | Double-bin refining furnace applied to metal component movement micro pressure casting forming method |
| CN107900314A (en) * | 2017-12-28 | 2018-04-13 | 重庆仟和镁业科技有限公司 | The production technology of overall magnesium alloy chair framework |
| CN107900314B (en) * | 2017-12-28 | 2019-09-03 | 重庆仟和镁业科技有限公司 | The production technology of whole magnesium alloy chair framework |
| CN108637030A (en) * | 2018-05-08 | 2018-10-12 | 安徽科技学院 | The liquid extrusion molding device of brittleness solder band |
| CN108637030B (en) * | 2018-05-08 | 2024-03-12 | 安徽科技学院 | Liquid extrusion forming device for brittle solder strip |
| CN108817350A (en) * | 2018-07-13 | 2018-11-16 | 安徽思源三轻智能制造有限公司 | The feeding mechanism of liquid forging machine |
| CN109373755A (en) * | 2018-10-14 | 2019-02-22 | 昆山建金工业设计有限公司 | A kind of device of gold element and antimony element composite material |
| CN111570754A (en) * | 2020-07-02 | 2020-08-25 | 黑龙江工业学院 | Magnesium-aluminum alloy die-casting device and magnesium-aluminum alloy die-casting is with component that deflects |
| CN111745139A (en) * | 2020-07-02 | 2020-10-09 | 黑龙江工业学院 | Magnesium-aluminum alloy casting method and magnesium-aluminum alloy casting position adjusting method |
| CN111570754B (en) * | 2020-07-02 | 2021-06-01 | 黑龙江工业学院 | Magnesium-aluminum alloy die-casting device and magnesium-aluminum alloy die-casting is with component that deflects |
| CN111745139B (en) * | 2020-07-02 | 2021-06-29 | 黑龙江工业学院 | Magnesium-aluminum alloy casting method and magnesium-aluminum alloy casting position adjusting method |
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| 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: 20080820 Termination date: 20110712 |