CN101352726A - Continuous production technique of spray forming ingot - Google Patents
Continuous production technique of spray forming ingot Download PDFInfo
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- CN101352726A CN101352726A CNA2007100441983A CN200710044198A CN101352726A CN 101352726 A CN101352726 A CN 101352726A CN A2007100441983 A CNA2007100441983 A CN A2007100441983A CN 200710044198 A CN200710044198 A CN 200710044198A CN 101352726 A CN101352726 A CN 101352726A
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Abstract
The invention discloses a continuous production process of an injection molding ingot. The production process adopts the organic combination of the injection molding technology and the skew rolling mill assembly continuous rolling technology; the injection molding adopts an atomizing nozzle to atomize alloy fluid flowing from a guide tube into tiny molten drops by inert gas such as nitrogen gas, argon gas, and the like, or the mixture thereof, and the molten drops deposit on a dummy sketch to form the ingot; the dummy sketch and the ingot rotate with the skew rolling mill assembly, and move outwards with the rotation of the skew rolling mill assembly; and the ingot is rolled by an inner skew roll of the skew rolling mill to form a round billet and realize the densifying and continuous production. The continuous production process solves the problems that the density of the existing injection molding ingot is low, and the ingot is restricted by the mechanical structure of an ingot depositor and the inner chamber size of an atomization chamber; and the continuous production process can realize production of infinitely long ingots.
Description
Technical field
The present invention relates to the ingot blank production technology, particularly a kind of continuous production processes of spray forming ingot.
Background technology
Spray forming technology is the metallurgical shaping process technology of a kind of near end form, semisolid that grows up on powder metallurgy powder by gas-atomization basis.It can overcome the defective that traditional process of smelting is brought, and can exempt the multiple working procedure such as powder process, compacting, sintering of powder metallurgy again.The reaction-injection moulding academic thought at first is that the Singer by Britain Swansea university is taught in nineteen sixty-eight and proposes, and its purpose is directly to obtain final products or semi-finished product from motlten metal.Reaction-injection moulding then is to patent since Britain Osprey Metals company in 1974 as a kind of engineering.Osprey company has developed into a kind of practical technique after its Processes and apparatus has been carried out big quantity research, and with this called after Osprey (Ao Sipurui) technology.
The basic principle of spray forming technology is seen Fig. 1, Fig. 2, from the form of nozzle and quantitatively, straight spray, tiltedly spray and single spray, two spray and several modes of multiple nozzle spraying are arranged,, vertical pulling is arranged, tiltedly draw and several modes of horizontal stretch from the depositor motion mode of ingot blank.In the reaction-injection moulding process, to from it with atomizer 4 inner high voltage inert gases 5, portion's container-tundish 1 interior metal liquid 2 that flows out through mozzle 3 is atomized into tiny molten drop-atomization metal particle 6, molten drop-atomization metal particle 6 flies under the effect of high velocity air and is cooled off gradually, before these molten drops solidify as yet fully, it is not deposited on the depositor 8 with definite shape, by changing molten drop-atomization metal particle 6 jets and the relative position of depositor 8 and the forms of motion of depositor, can obtain dish (post), pipe (ring), plate difform semi-finished product blank--ingot blanks 7 such as (bands).
Spray forming technology is an emerging technology, and this technology has the characteristics of rapid solidification, can prepare high alloy or superelevation alloy material that common process is difficult to prepare, and its even tissue is tiny, no gross segregation, and processability is good.This technology can overcome common process and very easily produce gross segregation in casting, the fatal shortcoming that very easily ftractures at operation of rolling material.
But the present existing weak point of this technology is that the density of ingot blank is not high, still needs to spray forming ingot after spray, takes off from depositor, adopts forging or rolling method to make ingot blank arrive fine and close purpose; In addition, the production process of spray forming ingot is to carry out in having the space of certain inner cavity size, owing to be subjected to the frame for movement of ingot blank depositor and the restriction of inner cavity size, the long ingot blank of theory unlimited is made in the continuous spray that still can not realize ingot blank, has limited the big production of this technology and has implemented.
As US4804034,217747,9248665,0200349, EP022573, to the depositor of atomizer below, this depositor has the form of rotating and moving downward to patents such as EP0574458B1 with metal jet.As previously mentioned, this method can not realize the length of ingot blank apart from drawing, and promptly the length of ingot blank is limited; Ingot blank needs further to forge or is rolling to obtain the sufficiently high blank of density.
Summary of the invention
The object of the present invention is to provide a kind of continuous production processes of spray forming ingot, the density that solves existing ingot blank is not high, and owing to be subjected to the frame for movement of ingot blank depositor and the restriction of inner cavity size, can also realize making the long ingot blank of theory unlimited.
For achieving the above object, technical scheme of the present invention is,
A kind of continuous production processes of spray forming ingot, it adopts spray forming technology and oblique milling unit continuous rolling technology, reaction-injection moulding adopts atomizer, by nitrogen, argon gas or their mist, to be atomized into tiny molten drop through the alloy liquid stream that mozzle flows out, molten drop deposits to and forms ingot blank on the dummy sketch, and dummy sketch rotates with the rotation of oblique milling unit roll, and the outwards motion with the rotation of oblique milling unit roll; Simultaneously, ingot blank is subjected to oblique milling rolling system in the oblique milling unit and forms round base;
Wherein, the gas pressure of reaction-injection moulding is 1.5～3.5Mpa; The metal degree of superheat: 80～280 ℃; Metal flow: 6～30kg/min * nozzle quantity; Atomizing keeps pressure-fired in the cabin; Atomization distance: 350～530mm;
The rotary speed of oblique milling unit ingot blank: 10～120rpm; The contraction percentage of area of oblique milling unit ingot for rolling base: 5～35%;
Pulling rate:
Wherein:
The continuous ingot blank pulling rate of Vcc-, mm/min
I-atomizer numbering, i=1,2,3,
N-atomizer quantity, constant
φ-catheter diameter, mm
The Vp-metal liquid flows out the speed of catheter, mm/min.Relevant with metal ingredient, temperature, liquid level
R-atomization metal recovery rate, constant, relevant with nozzle characteristic and process system
Φ-expectation ingot blank diameter, mm
The preceding liquid metal density of ingot blank density before the γ-rolling/atomizing, constant, relevant with metallic character, spray deposition technology.
Further, reaction-injection moulding of the present invention atomizing cabin internal pressure is 1～1.15atm.
The present invention realizes control and adjustment to dummy sketch and ingot blank draw speed and rotary speed by adjusting roller declination angle and rotating speed in the oblique milling unit;
The present invention also establishes dummy sketch face and depositional plane checkout gear, in order to control and adjustment draw speed, control jet length;
The present invention also establishes deposition ingot blank apparatus for detecting diameter, in order to control and adjustment draw speed, thus control and adjustment ingot blank diameter.
The present invention also establishes and rolls back ingot blank diameter detection, with control and adjustment ingot blank roll-force and the rolling shrinkage factor of ingot blank section.
The present invention also establishes the ingot blank temperature detection, is used for detecting the ingot blank temperature.
In addition, reaction-injection moulding of the present invention adopts single or multiple atomizers, and this nozzle is for being in tilted layout or vertically+being in tilted layout.
Described nozzle can be the restraint-type nozzle, also can be unrestricted formula nozzle.
The spike that has projection that the upper surface of described dummy sketch is shaped or the hole shape of depression, make the metal drop of atomizing be easy to deposit on the dummy sketch surface, can also prevent that the ingot blank that deposits on the dummy sketch from falling, and be easy to make ingot blank and dummy sketch under mechanism, to throw off.
The metal ingot blank diameter of deposition may be controlled to changeover portion and increases gradually until the diameter that reaches setting, or is controlled to be identically with dummy sketch, or is controlled to be changeover portion and reduces gradually.
The surface wave of the deposition billet base of control rises and falls and is controlled in the 10mm.
Ingot blank is with the rotation of dummy sketch and rotates and outwards move, and by the oblique milling unit of nipping gradually, the opening degree of oblique milling unit is definite according to the ingot blank contraction percentage of area of ingot blank diameter and setting, and the billet base is rolling and formed round base and realized densified by the oblique milling unit.
Front end at the oblique milling unit is provided with a nonstorage calorifier, ingot blank is nipped adopt Fast Heating before the skew rolling mill group.Ingot blank temperature according to measuring determines whether and need heat ingot blank, and the power of heating.
The rolling unit of other form also is set at the rear of oblique milling unit or goes out the ingot roller-way.
Before the atomizing beginning, need be blown into inert gas, to get rid of air and oxygen-containing gas in the cabin; When atomized spray, the pressure in the control atomizing cabin is malleation, when the deposition ingot blank is drawn out the atomizing cabin, adopts the method for machinery or air seal to prevent that air from entering the atomizing cabin.
The rolling billet base of the process of preparing cuts into the billet base of the certain-length that needs by cutting mode.
Before cutting or after the cutting, the billet base is heat-treated, form the product that the user finally needs.
The present invention has absorbed the advantage of reaction-injection moulding, circle base continuous rolling and has come direct preparation can be implemented in the long metal blank of theory unlimited, and spray and rollingly realized that goes on foot the process of finishing.
The present invention combines the advantage of reaction-injection moulding and circle base continuous rolling:
Spray deposition processing can spray the metal of high alloy content or superelevation alloy content, also can produce non-ferrous metal, and its deposit does not have gross segregation, and even tissue is tiny, and processability is good;
Reaction-injection moulding has the characteristics of rapid solidification;
Deposition billet base behind the reaction-injection moulding directly adopts skew rolling mill rolling, and the density of ingot blank is improved;
Deposition billet base behind the reaction-injection moulding directly adopts skew rolling mill rolling, has realized the rotation of ingot blank, has satisfied the requirement of spray deposition processing;
Deposition billet base behind the reaction-injection moulding directly adopts skew rolling mill rolling, has realized the drawing of ingot blank, has satisfied the requirement of spray deposition processing;
The direct continuous rolling production technology of spray forming ingot can realize continuous production, and efficient improves, and can realize industrialized production;
By to still being in the directly rolling of spray forming ingot under the condition of high temperature, can the compacting of jet deposition ingot blank is closely knit, flow process shortens, one-heating forming, energy savings consumption greatly improves the recovery rate of spray forming ingot material;
Can produce the metal ingot blank that common process is difficult to produce with high added value.
The present invention utilizes reaction-injection moulding to prepare the advantage of high alloy material, combination with spray forming technology and oblique milling unit continuous rolling technology, preparation even tissue, tiny, density height, the round metal ingot blank that performance is good are realized the continuous production of reaction-injection moulding high alloy billet base, improve the quality of metal ingot blank, improve the product recovery rate, enhance productivity, shortened process reduces energy resource consumption.
The present invention adopts the oblique milling unit, and with the dummy sketch clamping, this dummy sketch rotates with the rotation of oblique milling unit roll, and outwards motion.By adjusting the rolling parameter of oblique milling unit, realize control and adjustment to the rotating speed and the draw speed of dummy sketch, ingot blank;
Adopt spray forming technology, promptly the high velocity air that penetrates by single or multiple atomizers is broken into tiny metallic particles with liquid metal; Metallic particles is cooled off in motion gradually with high velocity air, is spraying on the dummy sketch that is provided with in the early stage with higher speed under the semisolid situation.The metal of deposition is grown up gradually, rotates with the rotation of dummy sketch, with moving of dummy sketch;
The metal ingot blank diameter of deposition when initial injection deposit, is controlled at the diameter of dummy sketch similarly, when subsequently continuation is sprayed, progressively is controlled at the diameter greater than dummy sketch, and purpose is in order to realize that the back step realizes densified to depositing the rolling of ingot blank.According to the appointed condition (maximum rolling force etc.) of process conditions (the ingot blank contraction percentage of area etc.) and oblique milling unit, determine the size of control deposition billet base diameter;
With the rotation of dummy sketch with move, reaction-injection moulding billet base under the condition of high temperature is by the oblique milling unit of nipping gradually, because the diameter of reaction-injection moulding billet base is bigger than the opening degree of dummy sketch and oblique milling unit minimum diameter, the billet base is rolling and form the circle base and realized densified by the oblique milling unit;
As mentioned above, the diameter of reaction-injection moulding billet base can be identical with the diameter of dummy sketch, by after being nipped, realizes rolling to reaction-injection moulding billet base by the opening degree that reduces the oblique milling unit gradually entering the oblique milling unit, in the case, final ingot blank size can be than dummy sketch little;
In order to realize automated closed-loop control, can as required the apparatus for detecting diameter that sprays ingot blank be set, with the opening degree adjustment realization closed-loop control of oblique milling unit, be used for accurately controlling the contraction percentage of area of oblique milling unit ingot for rolling base, realize accurate control the densified requirement of ingot blank.In addition, ingot blank top end face (jet deposition face) position detecting device can be set also,, realize accurate control jet length with by the control pulling rate;
By adjusting the rolling parameter (roll rotational speed, the angle of inclination of roll) of oblique milling unit, realize control and adjustment to the rotating speed and the draw speed of ingot blank;
When the deposition ingot blank is drawn out the atomizing cabin, adopt the method for machinery or air seal, adopt simultaneously in the atomizing cabin and feed inert gas, form the method for pressure-fired, prevent that air from entering the atomizing cabin, cause the oxidation of metal in the jet atomization process, reduce the performance of metal ingot blank;
In the ingot blank output procedure in back step, the round base that some can further be set rolls rod, with realization further rolling to the billet base;
The rolling billet base of the process of preparing passes through cutting machine, will cut into the billet base of specific length through rolling ingot blank;
The billet base is heat-treated the billet base by heat-treatment furnace before cutting or after the cutting, finally forms the merchantable timber that the user needs.
By process of the present invention, can realize the quantity-produced purpose of reaction-injection moulding billet base.
The present invention is applicable to reaction-injection moulding:
The continuous production of stretched vertically billet base; The continuous production of inclination stretching billet base; The continuous production of horizontal stretch billet base.
The present invention is applicable to the nozzle quantity of reaction-injection moulding: single atomizer; Two atomizers; Foggyization nozzle.
The present invention is applicable to the form of nozzle of reaction-injection moulding:
Restraint-type (close-coupled formula) atomizer; Unrestricted formula (non-close-coupled formula) atomizer.
The rotary speed control of ingot blank of the present invention: realize by the rotary speed of setting and adjust oblique milling roller in the oblique milling unit;
The pulling rate of ingot blank control: by adjusting oblique milling roller rotary speed, or realize by adjusting in the oblique milling unit the space crossed angle of inclination of oblique milling roll axis and ingot blank axis;
The opening degree control of oblique milling unit: by the method for hydraulic pressure or machinery, the axis of oblique milling roller is enlarged or dwindles along the normal direction of oblique milling unit open circles, or by specific mechanism, select specific roll forming, adopt linkage, the axis of oblique milling roller is realized, the final contraction percentage of area control that realizes ingot blank with methods such as certain spot wobbles;
Beneficial effect of the present invention
Compare with the employing casting-circle base rolling mill practice of routine:
● can enlarged metal the product scope (can prepare high alloy material even superelevation alloy material, also non-ferrous metal) of billet base;
● material has the characteristics of rapid solidification;
● the billet base does not have gross segregation, and even tissue is tiny, and processability is good, and the performance of material is good, the quality height;
● can produce the metal ingot blank that common process is difficult to produce with high added value.
Compare with conventional spray forming technology:
◆ can realize that large-tonnage is produced continuously and the reaction-injection moulding repeatedly of many stoves material, improve operating efficiency, can carry out the production of theoretic endless billet base, can realize industrialized production;
◆ produce continuously owing to can realize the reaction-injection moulding of many stoves, reduced the number of times of opening spray, end injection, the recovery rate of product is improved;
◆ the deposition billet base behind the reaction-injection moulding, directly adopt skew rolling mill rolling, the density of ingot blank is improved;
◆ the deposition billet base behind the reaction-injection moulding, directly adopt skew rolling mill rolling, realized the rotation of ingot blank, satisfied the requirement of spray deposition processing;
◆ the deposition billet base behind the reaction-injection moulding, directly adopt skew rolling mill rolling, realized the drawing of ingot blank, satisfied the requirement of spray deposition processing;
◆ by to still being in the directly rolling of spray forming ingot under the condition of high temperature, jet sediment can be suppressed closely knitly, flow process shortens, one-heating forming, energy savings consumption greatly.
Along with progress of science and technology, the requirement of high alloy, high performance round metal ingot blank is more and more higher, substitute and to adopt the depositor mode at present, be subjected to the restriction of depositor mechanical condition, can not quantity-produced reaction-injection moulding billet base production technology, realize that " the continuous production processes method of spray forming ingot " of production continuously, one-heating forming, short flow process will become possibility in the large-scale industrialization production of realization as early as possible that promotes spray forming technology.
The present invention combines the advantage of reaction-injection moulding, continuous rolling, one-heating forming, energy savings, short flow process, therefore, will well be developed and use, and its society, economic worth will be very huge.
The drawing explanation
Fig. 1 tiltedly draws spray forming ingot production technology schematic diagram for existing straight spray;
Fig. 2 is existing tiltedly spray vertical pulling spray forming ingot production technology schematic diagram;
Fig. 3 is used for the horizontal billet base quantity-produced schematic diagram that draws for the present invention;
Fig. 4 is used for vertical pulling billet base quantity-produced schematic diagram for the present invention;
Fig. 5 is used for tiltedly drawing billet base quantity-produced schematic diagram for the present invention.
The number in the figure explanation:
1 tundish, 2 metal liquids
3 catheters, 4 atomizers
The 5 inert gas 6 atomization metal particles that atomize at a high speed
7 spray forming ingots, 8 depositors
Billet base after 9 oblique milling units 10 are rolling
11 dummy sketches, 12 spray deposition cabins
13 sealing devices
The specific embodiment
Referring to Fig. 3, the present invention is used for the horizontal billet base that draws and produces continuously:
Adopt the oblique milling unit, with horizontal dummy sketch clamping, this dummy sketch rotates with the rotation of oblique milling unit, and outwards motion.By adjusting the oblique milling unit parameter, realize adjustment to the rotating speed and the draw speed of dummy sketch.
Reaction-injection moulding, oblique milling are all finished in spray deposition cabin 12, during by sealing device 13 sealing.
Particularly, the metal liquid 2 in the tundish 1 is through catheter 3, and the high velocity air that penetrates by the single or multiple atomizers 4 that are arranged in spray deposition cabin 12 is broken into tiny metallic particles 6 with liquid metal again; Metallic particles 6 is cooled off in motion gradually with high velocity air, is spraying on the horizontal dummy sketch 11 that is provided with in the early stage with higher speed under the semisolid situation; Horizontal dummy sketch 11 is subjected to oblique milling unit 9 to nip, rotate, and the metal of deposition is grown up gradually, rotates with the rotation of dummy sketch 11, with moving of dummy sketch 11;
The metal ingot blank of deposition--reaction-injection moulding billet base 7 diameters are close with dummy sketch 11 diameters when initial, progressively are controlled at greater than 20% of dummy sketch 11 diameters;
With the rotation of dummy sketch 11 with move, reaction-injection moulding billet base 7 is by the oblique milling unit of nipping gradually, because the diameter of reaction-injection moulding billet base 7 is bigger, billet base 7 is rolling and form billet base circle 10 and realized densified by oblique milling unit 9.According to arts demand, rolling amount of rolling is controlled at 10%～30%;
In the process in back step, the round base that some can further be set rolls rod, with realization further rolling to the billet base;
The rolling billet base of the process of preparing passes through certain cutting mode, cuts into the billet base of the certain-length that needs;
The billet base carries out heat treatment to the billet base by heat-treatment furnace before cutting or after the cutting, finally forms the product that the user needs.
Referring to Fig. 4, the present invention is used for vertical pulling billet base and produces continuously:
Adopt the oblique milling unit, with vertical dummy sketch clamping, this dummy sketch rotates with the rotation of oblique milling unit, and moves downward.By adjusting the oblique milling unit parameter, realize adjustment to the rotating speed and the draw speed of dummy sketch;
Adopt spray forming technology, metallic particles 6 is being sprayed on the vertical dummy sketch 11 that is provided with in the early stage with higher speed under the semisolid situation.The metal of deposition is grown up gradually, rotates with the rotation of dummy sketch 11, moves down with moving of dummy sketch 11;
The metal ingot blank diameter of deposition is close with dummy sketch 11 diameters when initial, progressively is controlled at greater than 15% of dummy sketch diameter;
With the rotation of dummy sketch with move, reaction-injection moulding billet base is by the oblique milling unit of nipping gradually, because the diameter of reaction-injection moulding billet base 7 is bigger, billet base 7 is rolling and form circle base 10 and realized densified by oblique milling unit 9.According to arts demand, rolling amount of rolling is controlled at 10%～20%;
In the process in back step, the round base that some can further be set rolls rod, with realization further rolling to the billet base;
The rolling billet base of the process of preparing passes through certain cutting mode, cuts into the billet base of the certain-length that needs;
The billet base carries out heat treatment to the billet base by heat-treatment furnace before cutting or after the cutting, finally forms the product that the user needs.
Referring to Fig. 5, the present invention is used for tiltedly drawing the billet base to produce continuously:
Adopt the oblique milling unit, with the dummy sketch clamping of tilting, this dummy sketch rotates with the rotation of oblique milling unit, and to the motion of oblique below.By adjusting the oblique milling unit parameter, realize the rotation of dummy sketch and the adjustment of draw speed;
Adopt spray forming technology, metallic particles is being sprayed on the inclination dummy sketch that is provided with in the early stage with higher speed under the semisolid situation.The metal of deposition is grown up gradually, rotates with the rotation of dummy sketch, with moving of dummy sketch;
The metal ingot blank diameter of deposition is close with the dummy sketch diameter when initial, progressively is controlled at less than 10% of dummy sketch diameter;
With the rotation of dummy sketch 11 with move, reaction-injection moulding billet base 7 is by the oblique milling unit 9 of nipping gradually, by progressively reducing the opening of oblique milling unit 9, makes billet base 7 rolling and form circle base 10 and realized densified by oblique milling unit 9.According to arts demand, rolling amount of rolling is controlled at 10%～20%;
In the process in back step, the round base that some can further be set rolls rod, with realization further rolling to the billet base;
The rolling billet base of the process of preparing passes through certain cutting mode, cuts into the billet base of the certain-length that needs;
The billet base carries out heat treatment to the billet base by heat-treatment furnace before cutting or after the cutting, finally forms the product that the user needs.
Claims (19)
1. the continuous production processes of a spray forming ingot, it adopts spray forming technology and oblique milling unit continuous rolling technology; Reaction-injection moulding adopts atomizer, by inert gas or their mists such as nitrogen, argon gas, to be atomized into tiny molten drop through the alloy liquid stream that mozzle flows out, molten drop deposits to and forms ingot blank on the dummy sketch, dummy sketch, ingot blank rotate with the rotation of oblique milling unit roll, and the outwards motion with the rotation of oblique milling unit roll; Simultaneously, ingot blank is subjected to the rolling of the interior oblique milling roller of oblique milling unit and forms the circle base and realize densified;
Wherein, the gas pressure of reaction-injection moulding is 1.5～3.5Mpa; The metal degree of superheat: 80～280 ℃; Metal flow: 6～30kg/min * nozzle quantity; Atomizing keeps malleation in the cabin; Atomization distance: 350～530mm;
The rotary speed of oblique milling unit ingot blank: 10～120rpm; The contraction percentage of area of oblique milling unit ingot for rolling base: 5～35%;
Pulling rate:
Wherein: the continuous ingot blank pulling rate of Vcc-, mm/min; I-atomizer numbering, i=1,2,3, N-atomizer quantity, constant; φ-catheter diameter, mm; The Vp-metal liquid flows out the speed of catheter, mm/min; R-atomization metal recovery rate, constant; Φ-expectation ingot blank diameter, mm; Liquid metal density before γ-rolling preceding ingot blank density/atomizing, constant.
2. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, before jet deposition, in the oblique milling unit, preset a dummy sketch, molten drop at first deposits to this dummy sketch head, rotates and outwards motion the formation ingot blank of growing up gradually with the rotation of dummy sketch.
3. the continuous production processes of spray forming ingot as claimed in claim 2, it is characterized in that, the spike that has projection that the upper surface of described dummy sketch is shaped or the hole shape of depression, make the metal drop of atomizing be easy to deposit on the dummy sketch surface, can also prevent that the ingot blank that deposits on the dummy sketch from falling, and be easy to make ingot blank and dummy sketch under mechanism, to throw off.
4. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, atomizing cabin internal pressure is 1～1.15atm.
5. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, by adjusting roller declination angle and rotating speed in the oblique milling unit, realizes control and adjustment to dummy sketch and ingot blank draw speed.
6. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, also establishes dummy sketch face and depositional plane checkout gear, in order to control and adjustment draw speed, control jet length.
7. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, also establishes deposition ingot blank apparatus for detecting diameter, in order to control and adjustment draw speed, thus control and adjustment ingot blank diameter.
8. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, also establishes and rolls back ingot blank diameter detection, with control and adjustment ingot blank roll-force and the rolling shrinkage factor of ingot blank section.
9. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, also establishes the ingot blank temperature detection, is used for detecting the ingot blank temperature.
10. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, reaction-injection moulding adopts single or multiple atomizers, and this nozzle is for being in tilted layout or vertically+being in tilted layout.
11. the continuous production processes of spray forming ingot as claimed in claim 10 is characterized in that, described nozzle is restraint-type nozzle or unrestricted formula nozzle.
12. the continuous production processes of spray forming ingot as claimed in claim 1, it is characterized in that the metal ingot blank diameter of deposition may be controlled to changeover portion and increases gradually until the diameter that reaches setting, or be controlled to be identically with dummy sketch, or be controlled to be changeover portion and reduce gradually.
13. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, the surface wave of the deposition billet base of control rises and falls and is controlled in the 10mm.
14. the continuous production processes of spray forming ingot as claimed in claim 1, it is characterized in that, ingot blank rotates with the rotation of dummy sketch and outwards moves, by the oblique milling unit of nipping gradually, the opening degree of oblique milling unit determines according to the ingot blank contraction percentage of area of ingot blank diameter and setting, and the billet base is rolling and formed round base and realized densified by the oblique milling unit.
15. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, at the front end of oblique milling unit one nonstorage calorifier is set, and ingot blank is nipped adopt Fast Heating before the skew rolling mill group.
16. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, the rolling unit of other form also is set at the rear of oblique milling unit or goes out the ingot roller-way.
17. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, need be blown into inert gas before the atomizing beginning, to get rid of air and oxygen-containing gas in the cabin; When atomized spray, the pressure in the control atomizing cabin is malleation, when the deposition ingot blank is drawn out the atomizing cabin, adopts the method for machinery or air seal to prevent that air from entering the atomizing cabin.
18. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, the rolling billet base of the process of preparing cuts into the billet base of the certain-length that needs by cutting mode.
19. the continuous production processes of spray forming ingot as claimed in claim 1 is characterized in that, the billet base is heat-treated the billet base before cutting or after the cutting, forms the product that the user finally needs.
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| CN103962558A (en) * | 2013-01-24 | 2014-08-06 | 宝山钢铁股份有限公司 | Method for preparing composite tube blank continuously by spray forming |
| CN112676773A (en) * | 2020-12-07 | 2021-04-20 | 天工爱和特钢有限公司 | Manufacturing process of powder metallurgy tundish nozzle flange free of steel sticking |
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2007
- 2007-07-25 CN CNA2007100441983A patent/CN101352726A/en active Pending
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| CN101934370B (en) * | 2009-06-29 | 2013-01-02 | 宝山钢铁股份有限公司 | Process for preparing extra-thick or composite pipe blank by injection moulding and device thereof |
| CN101992278A (en) * | 2010-11-26 | 2011-03-30 | 昆明理工大学 | Spray deposition region fluid type controller matched with continuous extruder |
| CN101992278B (en) * | 2010-11-26 | 2012-10-31 | 昆明理工大学 | Spray deposition region fluid type controller matched with continuous extruder |
| 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 |
| CN103962558A (en) * | 2013-01-24 | 2014-08-06 | 宝山钢铁股份有限公司 | Method for preparing composite tube blank continuously by spray forming |
| CN112676773A (en) * | 2020-12-07 | 2021-04-20 | 天工爱和特钢有限公司 | Manufacturing process of powder metallurgy tundish nozzle flange free of steel sticking |
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