CN204892888U - Device of preparation major diameter semi -solid alloy blank - Google Patents
Device of preparation major diameter semi -solid alloy blank Download PDFInfo
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- CN204892888U CN204892888U CN201520607429.7U CN201520607429U CN204892888U CN 204892888 U CN204892888 U CN 204892888U CN 201520607429 U CN201520607429 U CN 201520607429U CN 204892888 U CN204892888 U CN 204892888U
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Abstract
The utility model provides a device of preparation major diameter semi -solid alloy blank, expect crucible, slurrying room, puddler, air duct including what be used for bearing the alloy fuse -element, expect that the crucible and the upper end of slurrying room link up, it is indoor that slurrying is located to the puddler, forms semi -solid alloy slurry's appearance chamber between the indoor wall of its outer wall and slurrying, the puddler is hollow structure, and the air duct is established in its interpolation, the bottom of slurrying room combines to have the major diameter that is used for bearing the weight of the semi -solid alloy blank to collect the crucible for thick liquids export, below. The utility model discloses interval, the throughput in the air duct and puddler between puddler outer wall and the indoor wall of slurrying were adjusted to the accessible stirring speed makes the alloy fuse -element obtain violent stirring and quick cooling, and the direct thick liquids export by slurrying room bottom of half solid -state thick liquids of preparation is flowed out, and thick liquids flow velocity accessible axial displacement puddler accomplishes the accurate control, and the volume of half solid -state thick liquids preparation does not receive the dimensional limit of slurrying room, and thick liquids are prepared efficiently.
Description
Technical field
The utility model belongs to semi-solid alloy manufacture field, is specifically related to a kind of apparatus and method preparing major diameter semi-solid alloy blank.
Background technology
The Semi-solid Metals Forming Techniques since researcher's utility models such as nineteen seventies Massachusetts Institute Technology M.C.Flemings, from then on, the preparation of semi-solid metal slurry and shaping cause common concern and the research of countries in the world scholar.Semi-solid Metals Forming Techniques is divided into rheological molding and thixotropic forming, and wherein semi-solid die casting technology a kind ofly inherits casting, the precision of forging process overall merit, near-net-shape technology.Compared with conventional liquid die casting, thixotropic forming has that forming temperature is low, Product Precision is high, die life is long, it is excellent to organize and the advantage such as mechanical property is high.Compared with solid-state forging, thixotropic forming can use the part that less power, lower cost shaping form are complicated, mechanical property is suitable.
The technology path of semi-solid die casting is: semi-solid blank preparation, post bake are to solid-liquid temperature range, thixotropic forming.Wherein the preparation of semi-solid alloy blank is the most key step of semi-solid die casting technology because the preparation of semi-solid alloy blank determines and affects whole forming process, to the final microstructure morphology of formed product and mechanical property most important.
At present, the main method preparing semi-solid alloy blank in semi-solid die casting technical field has electromagnetic stirring method, mechanical mixing method and strain inducing-fusing activation method etc.Electromagnetic agitating technology comprise alternating current impression travelling-wave electromagnetic field stir prepare semi-solid alloy blank, permanent magnet rotary process stir prepare semi-solid alloy blank, coreless induction fusion method stir prepare semi-solid alloy blank etc., the advantage that slurry cleanliness factor is high although these methods have, equipment automatization is high, but make it be restricted in preparation major diameter semi-solid blank because electromagnetism produces kelvin effect at alloy surface, the general semi-solid alloy blank diameter adopting electromagnetic agitation method to prepare is less than 150mm.Although traditional mechanical mixing method can prepare the larger semi-solid alloy blank of specification, because alloy melt needs the long period just can be down to semi-solid temperature interval, cause the slow efficiency of base speed low.Because large scale semi-solid blank plastic deformation force is large, distortion difficulty, therefore strain inducing-fusing activation method is also difficult to prepare large volume semi-solid alloy blank.In addition, at present often there is equipment complexity, problem that base cost is higher in above three kinds of equipment preparing semi-solid alloy blank, and this also constrains batch preparation of semi-solid alloy blank further.Along with the extensive use of semi-solid state forming technique, the demand of major diameter semi-solid alloy blank is increasing, in order to can the major diameter semi-solid alloy blank of good quality be prepared and realizes the reliable suitability for industrialized production of steady and continuous by rapid batch continuously, scholars, researcher and industrial quarters still constantly making great efforts and exploring, attempt the technology of preparing of the major diameter semi-solid alloy blank that utility model makes new advances.
Utility model content
The purpose of this utility model is to solve the problem that complex structure that existing semi-solid blank preparation facilities exists, continuous operation poor reliability, Slug preparing size are little, be difficult to industrialization promotion, provide the apparatus and method preparing semi-solid alloy blank, the combination of collecting crucible and continuous casting installation for casting by major diameter realizes the production of major diameter semi-solid alloy blank.
For solving the problems of the technologies described above, embodiment of the present utility model provides a kind of device preparing major diameter semi-solid alloy blank, comprise batch turning crucible, pulping chamber, puddler, the wireway for carrying alloy melt, described batch turning crucible is connected with the upper end of pulping chamber;
Described puddler is located in pulping chamber, forms the cavity volume of semi-solid alloy slurry between its outer wall and pulping chamber inwall;
Described puddler is hollow structure, plugs wireway in it;
The bottom of described pulping chamber is slurry outlet, slurry outlet collect crucible below with the major diameter that has for carrying semi-solid alloy blank.
The device of above-mentioned preparation major diameter semi-solid alloy blank also can adopt following structure: the below of the slurry outlet of described pulping chamber can also be combined with conticaster, and described conticaster comprises the tundish be combined with slurry outlet and crystallizer, cooling device and the haulage gear be located at successively below tundish.
Wherein, thermocouple is inserted with, for monitoring the temperature of semi-solid alloy slurry near slurry outlet place in described pulping chamber.
Wherein, the top of described pulping chamber is cylindricality, bottom is taper, and the angle of junction, top and the bottom is 100 ~ 170 °;
The height of described pulping chamber is 200 ~ 2000mm, and the internal diameter of described slurry outlet is 10 ~ 100mm;
Spacing between described puddler outer wall and pulping chamber inwall is 3 ~ 200mm, and the lowermost end of puddler is 0 ~ 200mm to the distance of pulping chamber lowermost end.
Wherein, the internal diameter of described puddler is 10 ~ 100mm, and wall thickness is 1 ~ 15mm;
The rotating speed of described puddler is 0 ~ 2000r/min.
Wherein, the center line of described wireway, puddler and pulping chamber three overlaps;
In described wireway, gas flow is 0 ~ 2000L/min, and the internal diameter of wireway is 5 ~ 80mm, and the spacing between wireway outer wall and puddler inwall is 2 ~ 80mm, and the distance of lowermost end bottom puddler of wireway is 10 ~ 200mm.
Wherein, described major diameter collects the internal diameter of crucible is 150 ~ 1000mm;
The described major diameter top of collecting crucible is-100 ~ 300mm to the distance of pulping chamber lowermost end.
Preferably, described crystallizer internal diameter is 150 ~ 800mm, and cooling device is the some cooling water nozzles being distributed in crystallizer exit surrounding.
Wherein, the gas injected in described wireway is air, and gas temperature is room temperature.
The utility model achieves the preparation fast continuously of major diameter semi-solid alloy blank, and continuous operation is reliable and stable, is the major diameter semi-solid alloy Slug preparing device of a kind of advanced person, relative to prior art, has the following advantages:
1, semi-solid alloy Slug preparing apparatus structure is simply compact, easy to operate, is easy to and shaping equipment combines, can continuous seepage major diameter semi-solid alloy blank fast, is particularly suitable for industrialization promotion and application.
2, by regulating the mixing speed of the spacing between puddler outer wall and pulping chamber inwall, throughput in wireway and puddler to make alloy melt obtain strong agitation and cool fast, the semi solid slurry of preparation is directly flowed out by the slurry outlet bottom pulping chamber, and the slurry rate of outflow is by moving axially puddler to accomplish accurate control, the volume of making semisolid slurry does not limit by the size of pulping chamber; Compared to existing making semisolid slurry technology, efficiency is high; Due to Keep agitation and ventilation, the semi-solid alloy slurry of preparation fast has uniform temperature field and concentration field, continues to flow into major diameter collection crucible and is naturally cooled to semi-solid blank.This device can improve the uneven phenomenon of major diameter batch components, structure and properties, reduces blank cracking phenomena, improves blank surface quality, mechanical property and lumber recovery, reduces the production cost of major diameter semi-solid blank.
3, the refrigerating gas passed in wireway is air, greatly reduces slurrying cost.
4, be suitable for alloys range wide, be suitable for the preparation fast continuously of magnesium alloy, aluminium alloy, kirsite and composite major diameter semi-solid blank thereof.
Accompanying drawing explanation
Fig. 1 is wherein a kind of structural representation preparing the device of major diameter semi-solid alloy blank in the utility model;
Fig. 2 is the structural representation of the device of another kind of preparation major diameter semi-solid alloy blank in the utility model.
Description of reference numerals:
1, alloy melt;
2, batch turning crucible;
3, pulping chamber;
4, puddler;
5, wireway;
6, semi-solid alloy slurry;
7, thermocouple;
8, major diameter collects crucible;
9, semi-solid alloy blank;
10, tundish;
11, crystallizer;
12, cooling device;
13, haulage gear.
Detailed description of the invention
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1, a kind of device preparing major diameter semi-solid alloy blank, comprises the batch turning crucible 2 for carrying alloy melt 1, pulping chamber 3, puddler 4, wireway 5, and described batch turning crucible 2 is connected with the upper end of pulping chamber 3.
Described puddler 4 is located in pulping chamber 3, forms the cavity volume of the semi-solid alloy slurry 6 of annular between its outer wall and pulping chamber 3 inwall.
Described puddler 4 is hollow structure, plugs described wireway 5 in it.
The bottom of described pulping chamber 3 is slurry outlet, slurry outlet collect crucible 8 below with the major diameter that has for carrying semi-solid alloy blank 9.
Thermocouple 7 is inserted with, for monitoring the temperature of semi-solid alloy slurry 6 near slurry outlet place in described pulping chamber 3.
The top of described pulping chamber 3 is cylindricality, bottom is taper, and the angle of junction, top and the bottom is
; The height of pulping chamber 3 is 200 ~ 2000mm, and the internal diameter of described slurry outlet is 10 ~ 100mm.
Spacing between described puddler 4 outer wall and pulping chamber 3 inwall is 3 ~ 200mm, and the lowermost end of puddler 4 is 0 ~ 200mm to the distance of pulping chamber 3 lowermost end.
The internal diameter of described puddler 4 is 10 ~ 100mm, and wall thickness is 1 ~ 15mm; The rotating speed of puddler 4 is 0 ~ 2000r/min.
The center line of described wireway 5, puddler 4 and pulping chamber 3 three overlaps; The air of room temperature is passed in wireway 5, gas flow is 0 ~ 2000L/min, the internal diameter of wireway 5 is 5 ~ 80mm, and the spacing between wireway 5 outer wall and puddler 4 inwall is 2 ~ 80mm, and the distance of lowermost end bottom puddler 4 of wireway 5 is 10 ~ 200mm.
The internal diameter that described major diameter collects crucible 8 is 150 ~ 1000mm; Top to the distance of pulping chamber 3 lowermost end that major diameter collects crucible 8 is-100 ~ 300mm.
The device preparing semi-solid alloy blank also can adopt structure as shown in Figure 2, the upper part of this structure is identical with structure shown in Fig. 1, difference is: the slurry outlet of described pulping chamber 3 below with there being conticaster, described conticaster comprises the tundish 10 be combined with slurry outlet and crystallizer 11, cooling device 12 and the haulage gear 13 be located at successively below tundish 10.
Preferably, described crystallizer 11 internal diameter is 150 ~ 800mm, and cooling device 12 is for being distributed in some cooling water nozzles of crystallizer 11 exit surrounding.
The utility model also provides a kind of method preparing major diameter semi-solid alloy blank, utilizes the above-mentioned device preparing semi-solid alloy blank, comprises the steps:
(1) preparation is higher than the alloy melt of aluminium alloy liquidus temperature 5 ~ 150 DEG C: alloy pig being put into preheat temperature is in the crucible electrical resistance furnace of 200 ~ 400 DEG C, treat that alloy pig is warming up to higher than liquidus temperature 60 ~ 120 DEG C, refining is carried out completely after fusing, with bell jar by bottom the carbon trichloride press-in alloy melt after oven dry, the addition of carbon trichloride is 0.3% ~ 0.8% of alloy melt total amount, shake gently, gas in removing alloy melt, then alloy melt slagging-off, refining treatment, finally alloy melt is cooled to higher than liquidus temperature 10 ~ 50 DEG C insulation,
(2) cooling of alloy melt: the alloy melt that step (1) obtains is poured in pulping chamber by batch turning crucible, cool fast under the air agitation of puddler and ensure that internal temperature field is even, by the cooling velocity regulating the mixing speed of the spacing between puddler outer wall and pulping chamber inwall, throughput in wireway and puddler to control alloy melt, when alloy melt flows to the slurry outlet place bottom pulping chamber, the temperature of alloy melt is down to semi-solid temperature, the semi-solid alloy slurry of the tiny rounding of formative tissue;
(3) semi-solid alloy blank is obtained: the rate of outflow controlling semi-solid alloy slurry by moving axially puddler, semi-solid alloy slurry in step (2) flows to major diameter through slurry outlet and collects crucible, naturally obtains major diameter semi-solid alloy blank after cooling;
Or semi-solid alloy slurry flows in the tundish of conticaster through slurry outlet, then under the acting in conjunction of the haulage gear of crystallizer, cooling device, continuous casting becomes major diameter semi-solid alloy blank.
With two specific embodiments, the technical solution of the utility model is described in detail below:
Embodiment 1: preparation major diameter semisolid A380 aluminum alloy blank, step is as follows:
(1-1) liquidus curve of test die casting A380 aluminium alloy and solidus temperature are respectively 596 DEG C and 521 DEG C, A380 aluminium alloy ingots being put into preheat temperature is in the crucible electrical resistance furnace of 300 DEG C, until alloy temperature be warmed up to 680 DEG C, completely fusing after carry out refining, with bell jar by bottom the carbon trichloride press-in melt after oven dry, addition is 0.5% of aluminium alloy gross weight, shake gently, carry out alloy melt degasification, deslagging refining process, be incubated after finally alloy melt being cooled to 620 DEG C.
(1-2) setting the annulus width formed between the pulping chamber inwall of semi-solid alloy Slug preparing device in the present embodiment and puddler outer wall is 50mm, the angle that junction, pulping chamber top and the bottom is formed is 135 °, slurry outlet internal diameter bottom pulping chamber is 40mm, pulping chamber height 800mm, puddler lowermost end is 40mm to the distance of pulping chamber lowermost end; Puddler wall thickness 4mm, puddler intracavity diameter 50mm, puddler rotating speed 800r/min; The gap width formed between wireway outer wall and puddler inwall is 10mm, wireway internal diameter 20mm, gas intake 500L/min; Major diameter collects crucible internal diameter 500mm, high 500mm, the major diameter top of collecting crucible to the lowermost end of pulping chamber apart from being 100mm.Alloy melt melted in step (1-1) is poured in pulping chamber by batch turning crucible, alloy melt is subject to strong agitation and the cooling fast of air agitation bar in flow process, when alloy melt flow to the bottom of pulping chamber, temperature is down to semi-solid temperature interval, form semi-solid alloy slurry, the semi solid slurry prepared directly flows to major diameter through slurry outlet and collects crucible, and cooling obtains major diameter semisolid A380 aluminum alloy blank.
Embodiment 2: preparation major diameter semisolid 7075 aluminum alloy blank, comprises the steps:
(2-1) the test liquidus curve of 7075 aluminium alloys and solidus temperature is respectively 635 DEG C and 477 DEG C, 7075 aluminium alloy ingots are put into the crucible electrical resistance furnace that preheat temperature is 350 DEG C, refining is carried out after 7075 aluminium alloy temperature to 720 DEG C, completely fusing, with bell jar by bottom the carbon trichloride press-in melt after oven dry, addition is 0.5% of aluminium alloy gross weight, shake gently, carry out alloy melt degasification, deslagging refining process, be incubated after finally alloy melt being cooled to 660 DEG C.
(2-2) setting the annulus width formed between the pulping chamber inwall of semi-solid alloy Slug preparing device in the present embodiment and puddler outer wall is 70mm, the angle that junction, pulping chamber top and the bottom is formed is 120 °, slurry outlet internal diameter bottom pulping chamber is 60mm, pulping chamber height 1200mm, puddler lowermost end is 50mm to the distance of pulping chamber lowermost end; Puddler wall thickness 5mm, puddler intracavity diameter 70mm, puddler rotating speed 1200r/min; The gap width formed between wireway outer wall and puddler inwall is 12mm, wireway internal diameter 40mm, air intake 800L/min; Tundish internal diameter is 500mm, and in crystallizer, warp is 300mm.Melted alloy melt in step (2-1) is poured in pulping chamber, alloy melt is subject to strong agitation and the cooling fast of air agitation bar in flow process, be down to semi-solid temperature interval fast, form semi-solid alloy slurry, semi-solid alloy slurry flows in the tundish below it through pulping chamber outlet, and then under the acting in conjunction of the crystallizer of conticaster, cooling water nozzle, haulage gear, continuous casting becomes semisolid 7075 aluminum alloy blank.
The utility model makes alloy melt obtain strong agitation and cool fast by regulating the mixing speed of the spacing between puddler outer wall and pulping chamber inwall, throughput in wireway and puddler, the semi solid slurry of preparation is directly flowed out by the slurry outlet bottom pulping chamber, and the slurry rate of outflow is by moving axially puddler to accomplish accurate control, the volume of making semisolid slurry does not limit by the size of pulping chamber; The semi-solid alloy slurry of preparation continues to flow into major diameter collection crucible or connect conticaster to prepare major diameter semi-solid blank.This device can improve the uneven phenomenon of major diameter batch components, structure and properties, reduces blank cracking phenomena, improves blank surface quality, mechanical property and lumber recovery, and then the energy consumption reduced in preparation process and reduce blank cost.
The above is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. prepare a device for major diameter semi-solid alloy blank, it is characterized in that, comprise batch turning crucible, pulping chamber, puddler, the wireway for carrying alloy melt, described batch turning crucible is connected with the upper end of pulping chamber;
Described puddler is located in pulping chamber, forms the cavity volume of semi-solid alloy slurry between its outer wall and pulping chamber inwall;
Described puddler is hollow structure, plugs wireway in it;
The bottom of described pulping chamber is slurry outlet, slurry outlet collect crucible below with the major diameter that has for carrying semi-solid alloy blank.
2. the device of preparation major diameter semi-solid alloy blank according to claim 1, it is characterized in that, the below of the slurry outlet of described pulping chamber can also be combined with conticaster, and described conticaster comprises the tundish be combined with slurry outlet and crystallizer, cooling device and the haulage gear be located at successively below tundish.
3. the device of preparation major diameter semi-solid alloy blank according to claim 1, is characterized in that, is inserted with thermocouple in described pulping chamber near slurry outlet place.
4. the device of preparation major diameter semi-solid alloy blank according to claim 1, is characterized in that, the top of described pulping chamber is cylindricality, bottom is taper, and the angle of junction, top and the bottom is 100 ~ 170 °;
The height of described pulping chamber is 200 ~ 2000mm, and the internal diameter of described slurry outlet is 10 ~ 100mm;
Spacing between described puddler outer wall and pulping chamber inwall is 3 ~ 200mm, and the lowermost end of puddler is 0 ~ 200mm to the distance of pulping chamber lowermost end.
5. the device of preparation major diameter semi-solid alloy blank according to claim 1, is characterized in that, the internal diameter of described puddler is 10 ~ 100mm, and wall thickness is 1 ~ 15mm;
The rotating speed of described puddler is 0 ~ 2000r/min.
6. the device of preparation major diameter semi-solid alloy blank according to claim 1, is characterized in that, the center line of described wireway, puddler and pulping chamber three overlaps;
In described wireway, gas flow is 0 ~ 2000L/min, and the internal diameter of wireway is 5 ~ 80mm, and the spacing between wireway outer wall and puddler inwall is 2 ~ 80mm, and the distance of lowermost end bottom puddler of wireway is 10 ~ 200mm.
7. the device of preparation major diameter semi-solid alloy blank according to claim 1, is characterized in that, the internal diameter that described major diameter collects crucible is 150 ~ 1000mm;
The described major diameter top of collecting crucible is-100 ~ 300mm to the distance of pulping chamber lowermost end.
8. the device of preparation major diameter semi-solid alloy blank according to claim 2, it is characterized in that, described crystallizer internal diameter is 150 ~ 800mm, and described cooling device is the some cooling water nozzles being distributed in crystallizer exit surrounding.
9. the device of the preparation major diameter semi-solid alloy blank according to claim 1 or 6, is characterized in that, the gas injected in described wireway is air, and gas temperature is room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520607429.7U CN204892888U (en) | 2015-08-12 | 2015-08-12 | Device of preparation major diameter semi -solid alloy blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520607429.7U CN204892888U (en) | 2015-08-12 | 2015-08-12 | Device of preparation major diameter semi -solid alloy blank |
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| Publication Number | Publication Date |
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| CN204892888U true CN204892888U (en) | 2015-12-23 |
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| CN201520607429.7U Expired - Fee Related CN204892888U (en) | 2015-08-12 | 2015-08-12 | Device of preparation major diameter semi -solid alloy blank |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014020A (en) * | 2015-08-12 | 2015-11-04 | 北京科技大学 | Device and method for preparing large-diameter semi-solid alloy billet |
| CN106938326A (en) * | 2017-05-17 | 2017-07-11 | 安徽中鑫压铸技术研发有限公司 | Full-automatic air-cooled semi-solid slurrying machine |
| CN106944603A (en) * | 2017-05-17 | 2017-07-14 | 福建省鼎智新材料科技有限公司 | Full automatic water cooling semi-solid slurrying machine |
| CN110819832A (en) * | 2019-11-29 | 2020-02-21 | 贵州省冶金化工研究所 | Zinc alloy smelting equipment |
-
2015
- 2015-08-12 CN CN201520607429.7U patent/CN204892888U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014020A (en) * | 2015-08-12 | 2015-11-04 | 北京科技大学 | Device and method for preparing large-diameter semi-solid alloy billet |
| CN106938326A (en) * | 2017-05-17 | 2017-07-11 | 安徽中鑫压铸技术研发有限公司 | Full-automatic air-cooled semi-solid slurrying machine |
| CN106944603A (en) * | 2017-05-17 | 2017-07-14 | 福建省鼎智新材料科技有限公司 | Full automatic water cooling semi-solid slurrying machine |
| CN106938326B (en) * | 2017-05-17 | 2019-11-12 | 安徽中鑫压铸技术研发有限公司 | Full-automatic air-cooled semi-solid slurrying machine |
| CN110819832A (en) * | 2019-11-29 | 2020-02-21 | 贵州省冶金化工研究所 | Zinc alloy smelting equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20170812 |