CN1115217C - Mobile crucible automatic controlled spray deposition blank-making method and equipment - Google Patents
Mobile crucible automatic controlled spray deposition blank-making method and equipment Download PDFInfo
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- CN1115217C CN1115217C CN 01114422 CN01114422A CN1115217C CN 1115217 C CN1115217 C CN 1115217C CN 01114422 CN01114422 CN 01114422 CN 01114422 A CN01114422 A CN 01114422A CN 1115217 C CN1115217 C CN 1115217C
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Abstract
The present invention relates to an automatic controlled spray deposition blank preparation method of a moving crucible and a device of the method. Computer simulation and intelligent control are used; motion mechanisms of a crucible atomizer and a substrate motion mechanism are used for controlling the motions of the crucible atomizer and the substrate to make the crucible atomizer and the substrate coordinated so as to achieve the requirements of technological parameters for processing tube blanks and ingot blanks; the blank preparation device also comprises a substrate internal heating device, an external heating and annealing device and a safety dust removing device. The present invention has the advantages of uniform deposited blank structure, easy accurate control of the shapes of tube blanks, stable processing quality, capability of accurately controlling the temperature of the substrate, guarantee of the sticking conditions of an initial deposition layer, sufficient elimination of the internal stress of blanks, and ingot blank piece cracking prevention.
Description
The present invention relates to a kind of metal and alloy jet deposition blank manufacture method and device thereof, particularly mobile crucible automatic controlled spray deposition is made the method and the device thereof of metal, alloy pipe stock and billet base.
Existing spray deposition blank-making technology proposes at early seventies the earliest, its basic principle is: motlten metal or alloy are atomized in inert atmosphere, formation particle jetting stream injects directly on the colder matrix, through bump, coalescent, solidify and form deposit preform.As a kind of blank-making method of novel rapid solidification, this technology is widely used in the various alloys of preparation and composite pipe, ingot blank and slab etc., has obtained developing swift and violently.The applicant has proposed the notion and the theory of multi-layer spray deposition the end of the eighties, and has invented corresponding middle-size and small-size experimental provision, has further developed traditional spray deposition technique.The aluminium alloy pipe and the billet base that adopt this technology to prepare to have the rapid condensation tissue, but this equipment and technology also exist more shortcoming.The structural principle of multi-layer spray deposition equipment as shown in Figure 1, 2, its common trait is: moving by crank connecting link of crucible drives, and the lifting of deposition matrix, rotatablely moves by manually controlling by observation.The heating of deposition matrix is carried out in the special arrangement of the annealing in process of deposit preform outside the settling chamber based on external-heat.When adopting these equipment bases, because there are two motion dead points (horizontal velocity is zero) in the motion of crank connecting link, simultaneously, movement velocity changes continuously, and the shape of being small at both ends and big in the middle usually appears in the pipe of preparing; The shortcoming that then has the difficulty that is shaped during preparation billet base.The method that addresses these problems is after carrying out the spray and the deposition processes that fills spray, and carries out a large amount of turning processing again, and this will cause the material recovery rate extremely low, and production cost is too high.Because Models of Spray Deposition is that accidentalia is many by manually control by rule of thumb basically, makes that the tissue odds of deposit preform is even, the material property instability, process repeatability is relatively poor.Because deposition process is inhomogeneous, in blank, there is bigger macro-thermal stress, often cause the deposit preform cracking, cracking phenomena, percent defective height just take place in course of injection sometimes.In addition, the matrix adopting external-heat before the spray deposition blank-making process begins, be withdrawn the outer thermic devices of matrix earlier, adjusts jetting height, in this process, and the very fast heat radiation of matrix, temperature reduces.The heat radiation amplitude is relevant with the length of environment temperature and height adjustment process with speed, and the matrix surface temperature can not accurately be controlled, and also there is bigger contingency in the coherent condition of embryo deposit layer.
The purpose of this invention is to provide a kind of novel injection deposition blank-making method and equipment, crucible moves and the lifting of matrix all adopts computer system to carry out intellectuality control, and both are organically combined, make product tissue, performance even, the process repeatability height, product size is accurate, and production cost reduces, and eliminates the tissue defects of product; Simultaneously, can carry out large-scale continuous production.Overcome existing multi-layer spray deposition blank-making method and equipment and exist blank forming difficulty, dimensional accuracy not high when base, production cost is higher, and process repeatability is poor, shortcomings such as the tissue of material and unstable properties.
Technical scheme of the present invention is to adopt a kind of mobile crucible automatic controlled spray deposition blank-making method and device thereof, its spray deposition blank-making method is: motlten metal or alloy are atomized in inert gas, formation particle jetting stream, inject directly on the colder matrix, through bump, coalescent, solidify and form deposit preform, it is characterized in that:
(1) adopts computer simulation control crucible travel direction, VELOCITY DISTRIBUTION and stroke, the motion of mat motion controller and guide plate control operation crucible and atomizer.
(2) adopt the computer intelligence controller to control lifting, the rotation of deposition matrix, mat chain type transmission mechanism and feedback probe come the motion of control operation deposition matrix.
(3) adopt interior by the use of thermal means to add hot basal body, promptly heater is arranged in the matrix.Adopt the interior directly annealing device of stove to eliminate the stress of deposit preform.
As a further improvement on the present invention: its blank-making method is: when preparing large jet deposited pipe, press the profile of different tubing, the movement rate and the VELOCITY DISTRIBUTION of programme-control spray gun by computer, spray gun is done linear uniform motion along the bus of deposition matrix, the melt overheat temperature is 100～300 ℃, jetting height is 100～300mm, atomization air pressure is 0.5～5MPa, nozzle diameter is 3.2～5mm, the matrix rotating speed is 5～10rpm, the crucible movement rate is 10～100mm/s, and deposition matrix rising or falling speed is 1～20mm/min; Blank-making method is also when the large jet deposited ingot blank of preparation, reciprocal change speed linear motion is done by spray gun mechanism, rate distribution is by the control of computer follow procedure, and its scope speed is 20～100mm/s, and the melt overheat temperature is 100～300 ℃, jetting height is 50～200mm, atomization air pressure is 0.8～1.5MPa, and nozzle diameter is 2.5～5mm, and matrix rotating speed and elevation rate are given the computer On-line Control by the measured feedback information of probe, its scope is respectively 50～200rpm, 1～20mm/min.
Its spray deposition blank-making device is: the crucible atomizer is installed above the jet deposition chamber, and matrix places jet deposition indoor, and crucible atomizer and matrix are driven by separately motion respectively, it is characterized in that:
(1) electrically connect the motion controller that mainly is made of electric-motor drive mechanism by computer, motion controller connects guide plate, and guide plate places on the jet deposition room cover plate, forms crucible atomizer motion.
(2) electrically connect motor by computer and constitute the computer intelligence controller, its mat chain type transmission mechanism and feedback probe connect with the processing matrix forms the matrix motion.
(3) be close to the matrix inwall electric heater is set, constitute thermic devices in the matrix.
Description of drawings is as follows:
Fig. 1 is a multi-layer spray deposition pipe preparation facilities structural representation
Fig. 2 is a multi-layer spray deposition ingot blank preparation facilities structural representation
Fig. 3 is a mobile crucible automatic controlled spray deposition pipe preparation facilities schematic diagram of the present invention
Fig. 4 is a mobile crucible automatic controlled spray deposition ingot blank preparation facilities schematic diagram of the present invention
The present invention further specifies as follows in conjunction with specific embodiments referring to accompanying drawing:
When utilizing said method and device large-scale alloy pipe stock of preparation and ingot blank, the deposit preform net shape of mobile mobile crucible automatic controlled spray deposition, best organization condition depends on the technological parameter (degree of superheat of metal bath of jet deposition, the mass ratio of gas and metal liquid stream, jetting height, the material of deposition matrix, shape and preheat temperature etc.) (movement velocity of spray gun distributes with kinematic parameter, stroke, the rotating speed of matrix distributes, the distribution of rising or falling speed) combination is cooperated by computer system control crucible atomizer motion and matrix motor coordination by programming and to realize.
Embodiment 1, and a kind of mobile crucible automatic controlled spray deposition is made the method and the device thereof of pipe, and its method as mentioned above, adopt contrive equipment as shown in Figure 3, according to technological parameter as shown in table 1, prepared 8009 (Al-8Fe-1.3V-1.7Si) alloy pipe stock, specification is
Outward800/
In360 * 1200mm.The performance of this pipe after extrusion process is as shown in table 2.
Table 1 Al-Fe-V-Si heat-resisting aluminium alloy spray deposition technology parameter area
| Atomization temperature (℃) | Gas pressure (MPa) | Liquid flow diameter (mm) | Jet length (mm) | Matrix rotating speed (rpm) | Sweep speed (mm/s) | The atomizing cone angle (°) |
| 850～1100 | 0.5～0.2 | 2.0～5.0 | 80～300 | 20～200 | 40～100 | 15～45 |
Table 2 jet deposition Al-8Fe-1.3V-1.7Si extrusion tube blank mechanical property
* the performance of contrast material, the material material is Al-8.5Fe-1.2V-1.7Si, with the preparation of Osprey technology
| Extrusion temperature (℃) | Extrusion ratio | Probe temperature (℃) | σ b (Mpa) | σ s (MPa) | δ (％) |
| 480 | 4∶1 | 25 350 | 445 210 | 403 195 | 6.8 8.3 |
| 400 * | 16∶1 | 25 260 | 313 161 | 271 149 | 18 22 |
Its base device is referring to Fig. 3
In pipe preparation facilities shown in Figure 3, changed the lifting control mechanism of crucible motion control mechanism, deposition matrix in the multi-layer spray deposition, increased the interior thermic devices of matrix, the indoor direct annealing device of deposit preform.The crucible motion comprises crucible and atomizer 4, be fixed on jointly on the motion guide plate 3, part as the upper cover plate of spray chamber 6, motion controller 2 acts on the guide plate, form by step-by-step motor and one group of tumbler, with VELOCITY DISTRIBUTION, direction and the stroke of computer 1 simulation control crucible motion.Deposition matrix lifting control mechanism is made up of one group of linked transmission component computer intelligent controller 7, by probe 5 feedacks, and the rising or falling speed and the distribution thereof of control matrix.Probe is directly measured the diameter of deposit preform, and certainty of measurement can reach 3～5mm.The interior thermic devices 9 of matrix is close to the placement of matrix inwall, and thermometric device 10 directly reflects the online temperature of matrix, and the power of heater can be regulated continuously, and substrate temperature can accurately be controlled.Outer thermal annealing equipment 8 is placed in the settling chamber, when the deposit preform preparation finishes, can close up immediately by guide rail, and blank is carried out insulation annealing, and annealing temperature can be regulated continuously.
Embodiment 2, a kind of mobile crucible automatic controlled spray deposition is made the method and the device thereof of ingot blank, and its method adopts contrive equipment as shown in Figure 4 as described above, according to technological parameter as shown in table 3, having prepared specification is the heat-resisting aluminium alloy ingot blank of 800 * 1000mm.
Table 3 jet deposition prepares the basic technology parameter area of aluminium alloy ingot blank
| Atomization temperature (℃) | Gas pressure (MPa) | Liquid flow diameter (mm) | Jet length (mm) | Matrix rotating speed (rpm) | Scan period (s) | The atomizing cone angle (°) |
| 850～1100 | 0.5 ～-0.2 | 2.0～4.0 | 150～350 | 20～200 | 15～25 | 15～30 |
Its base device is referring to Fig. 4
In the ingot blank preparation facilities shown in Figure 4, added the computer automatic control system of oblique spray crucible motion.System is made up of computer 1 and controller 2, control the direction of motion, stroke, speed and the distribution thereof of crucible and atomizer spray gun 4 by motion guide plate 3, added matrix 8 motion calculation machine control systems 7, this system regulates rotating speed, rising and the decline of matrix automatically by the probe feedack.Add safe dust arrester 6, prevented the delay of too much powder.Above-mentioned crucible and matrix kinematic system are pressed the Based Intelligent Control of blas by computer, constitute a complete sports system, depositional mode, final size and the shape of control ingot blank that can be strict.
In addition, sandwich 5 is adopted in ingot blank jet deposition chamber, and interior water flowing or other cooling medium reduce the environment temperature in the settling chamber, and auxiliary coolant system is set in the settling chamber, can further improve condensation rate, can prepare the alloy preform to the cooling rate sensitivity.
Spray deposition blank-making method of the present invention and the large jet deposited pipe of device preparation thereof, ingot blank device have the following advantages:
(1) thoroughly solves multi-layer spray deposition equipment and be difficult to control owing to movement velocity dead point and the VELOCITY DISTRIBUTION inhomogeneous deposition pipe shape that causes of the crank connecting link of control crucible motion, the defectives such as deposit preform tissue odds is even, process repeatability is poor, and blank quality is unstable. The portable novel injection depositing device of intelligent control type crucible of the present invention, at the preparation Large Tube, during ingot blank, owing to adopted computer, the information of the deposit preform that feeds back by probe is controlled the motion state of crucible and matrix automatically, so that the even tissue of deposit preform has been eliminated macro-thermal stress, avoid blank to have the phenomenons such as hidden crackle even cracking. Simultaneously, the automation control of equipment is so that product quality is more stable, and process repeatability increases greatly, can carry out large-scale production.
(2) owing to adopt the matrix heater of internal heat type, substrate temperature can accurately be controlled, and Initial deposition layer adhesion condition is guaranteed. Annealing device in the settling chamber, can after finishing, spray deposition blank-making carry out annealing in process to deposit preform immediately, with abundant elimination thermal stress, when having avoided the deposit preform device to anneal outward, because of overlong time, temperature reduces too fast and ingot blank problem of Cracking that cause in the allocation and transportation process.
(3) settling chamber adds water-cooling sandwich or built-in condensation device, can significantly improve the cooling rate of deposit preform, is suitable for preparing the alloy preform to the cooling rate sensitivity.
Claims (8)
1, a kind of mobile crucible automatic controlled spray deposition blank-making method atomizes motlten metal or alloy in inert gas, form particle jetting stream, inject directly on the colder matrix, through bump, coalescent, solidify and form deposit preform, it is characterized in that:
(1) VELOCITY DISTRIBUTION, direction and the stroke that adopts computer simulation control crucible to move, the motion of nationality motion controller and guide plate control operation crucible atomizer;
(2) adopt the control of computer intelligence controller to deposit lifting, the rotation of matrix, nationality chain type transmission mechanism and feedback probe control operation deposit the motion of matrix;
(3) adopt interior by the use of thermal means to add hot basal body, promptly heater is arranged in the matrix.
2, mobile crucible automatic controlled spray deposition blank-making method according to claim 1, it is characterized in that its blank-making method is: when preparing large jet deposited pipe, by the profile of computer by different tubing, the movement rate of programme-control spray gun and VELOCITY DISTRIBUTION, spray gun is done linear uniform motion along the bus of deposition matrix, the melt overheat temperature is 100～300 ℃, jetting height is 100～300mm, atomization air pressure is 0.5～5MPa, nozzle diameter is 3.2～5mm, the matrix rotating speed is 5～10rpm, the crucible movement rate is 10～100mm/s, and deposition matrix rising or falling speed is 1～20mm/min.
3, mobile crucible automatic controlled spray deposition blank-making method according to claim 1, it is characterized in that blank-making method is when the large jet deposited ingot blank of preparation, reciprocal change speed linear motion is done by spray gun mechanism, rate distribution is controlled by the computer follow procedure, its scope speed is 20～100mm/s, the melt overheat temperature is 100～300 ℃, jetting height is 50～200mm, atomization air pressure is 0.8～1.5MPa, nozzle diameter is 2.5～5mm, matrix rotating speed and elevation rate are given the computer On-line Control by the measured feedback information of probe, and its scope is respectively 50～200rpm, 1～20mm/min.
4, a kind of mobile crucible automatic controlled spray deposition blank-making device is installed the crucible atomizer above the jet deposition chamber, the processing matrix places jet deposition indoor, and crucible and atomizer and deposition matrix by separately motion drive, is characterized in that respectively:
(1) electrically connect the motion controller that mainly is made of electric-motor drive mechanism by computer, motion controller connects guide plate, and guide plate places on the jet deposition room cover plate, forms crucible atomizer motion;
(2) electrically connect motor by computer and constitute the computer intelligence controller, its nationality chain type transmission mechanism and feedback probe connect with the processing matrix forms the matrix motion;
(3) be close to the matrix inwall electric heater is set, constitute thermic devices in the matrix.
5, mobile crucible automatic controlled spray deposition blank-making device according to claim 4, it is characterized in that the interior thermic devices of its base device matrix and the annealing device of settling chamber can adopt resistance heated or other heater, cooling mediums such as water flowing in settling chamber's interlayer, freon.
6, mobile crucible automatic controlled spray deposition blank-making device according to claim 4 is characterized in that its base device comprises a temperature element, places the matrix outer wall.
7, mobile crucible automatic controlled spray deposition blank-making device according to claim 4 is characterized in that its base device comprises an outer thermal annealing device, and it is indoor to be arranged on jet deposition.
8, mobile crucible automatic controlled spray deposition blank-making device according to claim 4 is characterized in that its base device comprises a safe dust arrester, connects with the jet deposition chamber.
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| CN 01114422 CN1115217C (en) | 2001-04-19 | 2001-04-19 | Mobile crucible automatic controlled spray deposition blank-making method and equipment |
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| CN 01114422 CN1115217C (en) | 2001-04-19 | 2001-04-19 | Mobile crucible automatic controlled spray deposition blank-making method and equipment |
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| CN1115217C true CN1115217C (en) | 2003-07-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100479951C (en) * | 2007-03-26 | 2009-04-22 | 哈尔滨工业大学 | Mechanical swinging type atomizing liquid-leading system suitable for preparing large-size jet-diposition blank ingot |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126024B (en) * | 2011-03-18 | 2012-11-21 | 哈尔滨工业大学 | Atomizer for spray forming of high-melting-point alloy deposit billets |
| CN102626843A (en) * | 2012-02-17 | 2012-08-08 | 汤汉良 | Manufacturing method for automobile parts made of aluminum-based composite material through spray deposition |
| CN106623935A (en) * | 2016-10-09 | 2017-05-10 | 湖南工业大学 | Spray deposition platform |
| CN107363237B (en) * | 2017-07-07 | 2024-07-19 | 镇江镨利玛新型材料科技有限公司 | Forming device for continuously producing high-temperature alloy ingot blank |
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2001
- 2001-04-19 CN CN 01114422 patent/CN1115217C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100479951C (en) * | 2007-03-26 | 2009-04-22 | 哈尔滨工业大学 | Mechanical swinging type atomizing liquid-leading system suitable for preparing large-size jet-diposition blank ingot |
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