CN104328429B - Utilize the method and apparatus that electromagnetic force and mechanical pressure are coated with lined ceramics at steel pipe inner wall - Google Patents
Utilize the method and apparatus that electromagnetic force and mechanical pressure are coated with lined ceramics at steel pipe inner wall Download PDFInfo
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- CN104328429B CN104328429B CN201410530457.3A CN201410530457A CN104328429B CN 104328429 B CN104328429 B CN 104328429B CN 201410530457 A CN201410530457 A CN 201410530457A CN 104328429 B CN104328429 B CN 104328429B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
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Abstract
The invention discloses a kind of method and apparatus utilizing electromagnetic force and mechanical pressure to be coated with lined ceramics at steel pipe inner wall, it is when keeping steel pipe to continue to rotate, the thermite that brown iron oxide and aluminium powder mix composition continues to be delivered in steel pipe and light the mixing melt producing aloxite (AI2O3) and ferrum liquid, it is energized to mixing melt by conductive electrode, make ferrum liquid charged, downward Lorentz force is produced under being perpendicular to the field pole effect that conductive electrode is arranged, separate with aloxite (AI2O3), it is deposited on steel pipe inner wall, aloxite (AI2O3) covers formation aluminum oxide ceramic lining coating on ferrum liquid, the lining coating of formation is pressed on steel pipe inner wall by the mechanical pressure finally utilizing binder disk。Mixing melt is squeezed in steel pipe inner wall with mechanical pressure and forms the lined ceramics composite steel tube that ceramic layer is finer and close by the present invention, improves service life and the serviceability of lined ceramics composite steel tube。
Description
Technical field
The present invention relates to the production method of a kind of lined ceramics composite steel tube, particularly relate to a kind of method utilizing electromagnetic force and mechanical pressure to produce lined ceramics composite steel tube, and use the lined ceramics composite steel tube process units of the method。
Background technology
Lined ceramics composite steel tube is from inside to outside by ceramic layer, transition zone, steel pipe up of three layers, and ceramic layer is the dense alumina porcelain (Al formed 2200 DEG C of high temperature above2O3), be firmly combined with steel pipe formation by transition zone。Composite steel tube has given full play to hardness of steel height, good toughness, shock-resistant, good welding performance and Corundum Ceramics high rigidity, high abrasion, anti-corrosion, heat-resist feature, overcomes that common steel tube hardness is low, wears no resistance and the deficiency of ceramics toughness difference。Therefore, lined ceramics composite steel tube has good wear-resisting, heat-resisting, anti-corrosion and resistance to mechanical to be impacted and the combination property such as thermal shock, solderability, becomes conveying granular material, pipeline wear-resisting, anti-corrosion such as the ideal of grinding, Korrosionsmedium etc.。
The main method preparing lined ceramics composite steel tube includes: steel pipe inner wall insert earthenware technology, inner surface compound (spraying and ion implanting) technology, high molecular polymer lining technique, self-propagating-centrifugation technique etc.。Wherein inwall insert earthenware technology is to connect earthenware and steel pipe with organic adhesive or low-melting-point metal binding agent, and bond strength is low, mechanical resistant impact is poor；Inner surface complex technique is for helpless compared with the steel pipe of pipe with small pipe diameter or longer；The corrosion resistance of high molecular polymer lined composite steel tube is good, but there is shortcomings such as absorbing water, aging, and its fatal weakness is to use temperature low。
At present, self-propagating-centrifugation technique is widely used in the manufacture of lined ceramics composite steel tube, and has been developed for the complexes utilizing self-propagating-centrifugation technique to produce lined ceramics composite steel tube。With self-propagating-centrifugation technique prepare lined ceramics composite steel tube it is crucial that the control of centrifugal force size。Under little centrifugal force, the gas that self-propagating produces is difficult to discharge, and produces pore at ceramic layer, and the product corrosion resistance of production, abrasion resistance etc. all can be greatly reduced；If centrifugal force is relatively big, ceramic layer can separate with steel pipe base layer again and produces crack。
The centrifugal force of existing lined ceramics composite steel tube process units is to be realized by the rotary speed of control steel pipe, according to formula F=m × r × w2, its m, r are certain, only increase the size of F by improving w。Therefore, the maximum (top) speed of motor just becomes the bottleneck of restriction centrifugal force size, limits some high standards and requires the production of product。
Summary of the invention
It is an object of the invention to provide a kind of method and apparatus utilizing electromagnetic force and mechanical pressure to be coated with lined ceramics at steel pipe inner wall, to overcome existing lined ceramics composite steel tube process units to be centrifuged hypodynamic problem, rely on external strength to produce the lined ceramics composite steel tube product that ceramic layer is finer and close, improve the serviceability of lined ceramics composite steel tube。
The method utilizing electromagnetic force and mechanical pressure to be coated with lined ceramics at steel pipe inner wall provided by the invention includes:
The steel pipe making lined ceramics to be coated is maintained under the state continuing to rotate；
By a conveying worm that can extend into steel duct, will be mixed, by brown iron oxide and aluminium powder, the lined ceramics position to be coated that the thermite formed continues to be delivered in steel pipe；
By being arranged on a pair ignitor of conveying worm front end, thermite is lighted a fire, make to be delivered to the thermite self-propagating combustion of conveying worm front end, reaction produces the mixing melt of aloxite (AI2O3) and ferrum liquid, and this mixing melt flows out the conveying worm inner wall surface to steel pipe；
Pair of conductive electrode and pair of magnetic field magnetic pole it is provided with mutual vertically in the exit of conveying worm, by the pair of conductive electrode to flowing out conveying worm to the mixing melt energising in steel pipe, make the ferrum liquid in mixing melt charged, with ferroelectric liquid under the action of a magnetic field that pair of magnetic field magnetic pole produces, produce downward Lorentz force, separate with aloxite (AI2O3), be deposited on the inwall of steel pipe, aloxite (AI2O3) covers on ferrum liquid, forms aluminum oxide ceramic lining coating；
One binder disk is set in conveying worm front end mixing melt exit, along with the rotation of steel pipe, utilizes the mechanical pressure of binder disk, the aluminum oxide ceramic lining coating of formation is pressed on the surface of steel pipe；
Described conveying worm is moving axially along steel pipe simultaneously, removes from the steel pipe inner wall position already coated with aluminum oxide ceramic lining coating, is coated with lined ceramics in the way of spiral coating constantly on steel pipe inner wall。
Wherein, described binder disk adopts resistant to elevated temperatures insulant to make。
Provided by the invention utilize electromagnetic force and mechanical pressure to be coated with the high temperature that produces first with thermit reaction of method of lined ceramics at steel pipe inner wall, make the Al of thermite self-propagating combustion reaction generation2O3It is in liquid with Fe, owing to the ferrum of liquid is conduction, is in "on" position when conductive electrode DC source is powered, under the action of a magnetic field of both sides magnetic material, produce coincidence formula F=B × I × L(F: Lorentz force；B: magnetic field intensity；I: current intensity；L: conducting liquid length) Lorentz force, making ferrum liquid separate with aluminium oxide, the melt solidified gradually, below aluminium oxide liquid, is extruded by ferrum liquid level again through binder disk, make full use of electromagnetic force and mechanical pressure, steel pipe inner wall defines the aluminum oxide ceramic lining coating of densification。The present invention overcomes the shortcoming that centrifugal SHS method produces lined ceramics composite steel tube, it is possible to the lined ceramics composite steel tube that production and application performance is higher, and according to using needs, produce the composite steel tube with different lined ceramics thickness。
And then, the invention provides a kind of lined ceramics composite steel tube process units based on electromagnetic force and mechanical pressure, this process units is suitable for the above-mentioned method utilizing electromagnetic force and mechanical pressure to be coated with lined ceramics at steel pipe inner wall, includes:
One frame, is provided with some pair rollers in described frame, for placing the steel pipe being intended to coating lined ceramics, drives steel pipe original position in frame to rotate；
One driving, is positioned at frame side, can move along steel pipe axial reciprocating；
One is arranged on the conveying worm in driving, including a front opening cylinder, be positioned at the feed hopper of conveyer cylinder back-end and be installed on cylinder the thermite entered by feed hopper to be delivered to the spiral guide rod of barrel front end；The cylinder of described conveying worm can stretch in the steel pipe in frame, and the movement of following vehicle is at steel in-pipe；Front opening at described cylinder is connected below the baffle plate of one piece of circular arc, and the lower edge of described baffle plate contacts with steel pipe inner wall；
A pair ignitor, is arranged on the cylinder of the conveying worm port of export, and the thermite being delivered to conveying worm barrel front end opening part can be lighted by the electric arc produced between ignitor after energising, occurs thermit reaction to form mixing melt；
One binder disk being fixedly connected on conveying worm barrel front end opening, described binder disk and steel pipe are coaxially disposed, the annular gap being equivalent to inner lining of steel pipe ceramic thickness is formed between periphery and the steel pipe inner wall of binder disk, the plane that described binder disk is relative with conveying worm barrel front end baffle plate is provided with a downward blow tank, is made up of the feed liquid that a upper open end connects with in helical feed machine drum body, lower open end connects with annular gap the baffle plate of described blow tank with conveying worm barrel front end and gathers pond；
Pair of magnetic field magnetic pole, is fixed on the blow tank both sides of binder disk in the way of opposite pole is relative, and the magnetic line of force gathers pond horizontal through described feed liquid；
Pair of conductive electrode, is relatively separately mounted on described binder disk and baffle plate, is perpendicular to pair of magnetic field magnetic pole, when the mixing melt energising gathered to feed liquid in pond, to produce downward Lorentz force under the action of a magnetic field。
Wherein, the installation site of described field pole and conductive electrode is not unique, as long as its installation site each other disclosure satisfy that the Lorentz force of generation is downward。
In said apparatus of the present invention, described pair of magnetic field magnetic pole includes a long field pole and a short field pole, and described short field pole does not grow the blow tank of binder disk, and long field pole grows blow tank, and contact with steel pipe inner wall, to constitute a lateral catch。Relative position between described long field pole and short field pole meets with long field pole for starting point, and steel pipe is rotated to short field pole direction by long field pole。Described long field pole is together with the baffle plate of conveying worm barrel front end, stop the moving direction flowing of the mixing melt opposite direction to steel pipe rotary direction flowed out from blow tank and conveying worm, and only it being collected on the lined ceramics region to be coated of steel pipe inner wall, in order to binder disk is by its dense extrusion。
Apparatus of the present invention also have several bracing frames in the cylinder arranged outside of described conveying worm, for being supported in steel pipe by conveying worm, stable mobile。Support frame as described above is by an annulus set, and several length-adjustable pillars composition that annulus set outer symmetrical is arranged, the internal diameter of described annulus set and cylinder major diameter fit, is fixed on cylinder, and the end of pillar holds out against on the inwall of steel pipe。
Preferably, the present invention is provided with positioning bead at the end of described pillar, and the steel ball of positioning bead contacts with steel pipe inner wall so that steel pipe can rotate smoothly on bracing frame。
It is coated with lined ceramics to be suitable for the steel pipe to different tube diameters, different length, described conveying worm is formed by multiple unit member are threaded, can select to increase or reduce the number of unit member according to the length of steel pipe, it is preferable that the length of each unit member is 1 meter。And then, the strut lengths of bracing frame of the present invention is adjustable, to adapt to different calibers。
Wherein, it is also possible to the end of described spiral guide rod is movably connected on described binder disk, to further enhance the stability of device each several part。
The lined ceramics composite steel tube process units of the present invention utilizes electromagnetic force and mechanical pressure to be coated with lined ceramics on steel pipe inner wall, first pass through driven by motor spiral guide rod transport thermite, and lighted with ignitor in cylinder and to become mixing melt, aloxite (AI2O3) pottery is separated by the electromagnetic force produced again through binder integrated disc portions with ferrum liquid, and by the mechanical pressure of binder disk, the melt that self-propagating produces is squeezed on steel pipe inner wall, form closely knit inner liner。Apparatus of the present invention instead of centrifugal force with mechanical pressure and electromagnetic force, increases the service life of product, solves centrifugal hypodynamic problem。
Accompanying drawing explanation
Fig. 1 is the structural representation of lined ceramics composite steel tube process units of the present invention。
Fig. 2 is the structural representation installing steel pipe on lined ceramics composite steel tube process units of the present invention。
Fig. 3 is the structural representation of binder integrated disc portions in Fig. 1。
Fig. 4 is the front view of binder disk in Fig. 1。
Fig. 5 is the A-A sectional view of Fig. 3。
Fig. 6 is the structural representation of supporting frame part in Fig. 1。
In figure: 1 steel pipe, 2 frames, 3 drivings, 4 rollers, 5 conveying worms, 6 binder disks, 7 roller motors, 8 conveying worm motors, 9 ignitors, 10 conductive electrodes, 11 field poles, 401 annular gaps, 501 feed hoppers, 502 spiral guide rods, 503 cylinders, 504 baffle plates, 505 bracing frames, 601 blow tanks, 602 feed liquids gather pond, 5051 annulus sets, 5052 pillars, 5053 positioning beads, 1001 conductive electrode positive poles, 1002 conductive electrode negative poles, 1101 field pole N poles, 1102 field pole S poles, 1103 catch。
Detailed description of the invention
Fig. 1 provides a kind of lined ceramics composite steel tube process units, is mainly made up of frame 2, driving 3, roller 4, conveying worm 5, binder disk 6, roller motor 7, conveying worm motor 8, ignitor 9, conductive electrode 10 and field pole more than 11 part。
Being provided with some pair rollers 4 in frame 2, every pair roller 4 all includes a drivewheel and a driven pulley, and described drivewheel is fixedly connected with in the rotating shaft of roller motor 7, roller motor 7 drive rotation。
Driving 3 is arranged on the side of frame 2, and is fixed with conveying worm 5 in driving 3, and driving 3 moves axially along steel pipe with conveying worm 5。Conveying worm 5 is made up of cylinder 503, spiral guide rod 502 and feed hopper 501, and spiral guide rod 502 is arranged in cylinder 503, and the end cylinder of conveying worm 5 is provided with feed hopper 501。Its middle cylinder body 503 and spiral guide rod 502 are by the threaded composition of multiple unit member, each unit member length 1 meter, and two ends are equipped with screw thread, in that context it may be convenient to connect the conveying worm being combined into various length。It is further installed below one piece of baffle plate 504 at the front opening place of cylinder 503。Driving 3 is also equipped with conveying worm motor 8, is connected with spiral guide rod 502, drive spiral guide rod 502 to rotate in cylinder 503, feed hopper 501 thermite entered is fed forward。
Several bracing frames 505 it are also equipped with outside the cylinder 503 of conveying worm 5, the structure of support frame as described above 505 is as shown in Figure 6, it is made up of annulus set 5051 and pillar 5052, wherein annulus overlaps the internal diameter of 5051 and the major diameter fit of cylinder 503, it is fixed on the outside of cylinder 503, overlap at annulus and in cross, 4 pillars 5052, the adjustable in length of described pillar 5052 are installed on 5051, be also equipped with positioning bead 5053 in the front end of pillar 5052。
A pair ignitor 9 is installed on the front end cylinder 503 of conveying worm 5, the inner side of the pair of ignitor 9 as close as, outside is connected with the both positive and negative polarity of power supply respectively。
The structure of binder disk 6 as shown in Figure 3, Figure 4, is fixedly connected on cylinder 503 front opening of conveying worm 5, and is movably connected on binder disk 6 by spiral guide rod 502。The plane that binder disk 6 is relative with helical feed machine drum body 503 front end baffle 504 is provided with a blow tank that Open Side Down 601, jointly crossed a feed liquid by blow tank 601 and baffle plate 504 and gather pond 602, from fig. 5, it can be seen that the upper open end that this feed liquid gathers pond 602 connects with in helical feed machine drum body 503。
As shown in Figure 4, Figure 5, pair of magnetic field magnetic pole 11 is fixed on blow tank 601 both sides of binder disk 6 in the way of opposite pole is relative so that it is the magnetic line of force can gather pond 602 horizontal through feed liquid。It is be field pole N pole 1101 on the right side of field pole S pole 1102, Fig. 4, on the left of Fig. 5 on the left of Fig. 4, on the right side of Fig. 5。Wherein, field pole N pole 1101 grows blow tank 601 1 segment length, forms a catch。
Such as Fig. 3, pair of conductive electrode 10 is separately mounted on binder disk 6 and baffle plate 504 relatively, is perpendicular to pair of magnetic field magnetic pole 11。Wherein conductive electrode positive pole 1001 installs (Fig. 4) on binder disk 6, and conductive electrode negative pole 1002 is arranged on baffle plate 504 (Fig. 5)。
Fig. 2 is the use state diagram after installing steel pipe on Fig. 1 device。From figure 2 it can be seen that steel pipe 1 is placed on the roller 4 of frame 2, roller motor 7 driving rolls 4, drive steel pipe 1 original position in frame 2 to rotate clockwise。Conveying worm 5 stretches in steel pipe 1, and on bracing frame 505, the steel ball of positioning bead 5053 contacts with steel pipe inner wall, is supported on firm for conveying worm 5 in steel pipe 1, and makes steel pipe 1 rotate smoothly on bracing frame 505。The lower edge of cylinder 503 front end baffle 504 also with steel pipe 1 contact internal walls。Along with the operating of the rotation of steel pipe 1 and conveying worm 5, driving 3 synchronization drives conveying worms 5 to move to the feed hopper direction of conveying worm, progressively exits steel pipe 1。The binder disk 6 of conveying worm 5 front end and steel pipe 1 are for being coaxially disposed, defining an annular gap 401 being equivalent to inner lining of steel pipe ceramic thickness between the inwall of the periphery of binder disk 6 and steel pipe 1, feed liquid is gathered the lower open end in pond 602 and is connected with this annular gap 401。
The work process of the present invention is as follows: placing steel tubes 1 in the frame 2 of horizontal positioned, length according to steel pipe 1, assemble the conveying worm 5 with the spiral guide rod 502 and cylinder 503 meeting length, drive driving 3, conveying worm 5 is sent in steel pipe 1, make binder disk 6 be positioned at steel pipe 1 foremost, regulate bracing frame 505, the cylinder 503 of conveying worm 5 is fixed。Start roller motor 7, make steel pipe 1 original position clockwise under the driving of roller 4 rotate。The thermite being made up of aluminium powder and brown iron oxide mixed is loaded in feed hopper 501, starts conveying worm motor 8, thermite is transported to cylinder 503 leading portion of conveying worm 5。Ignitor 9 energising produces electric arc, is lighted by thermite, makes the concurrent cast alumin(i)um thermal response of thermite self-propagating combustion, produces the mixing melt being made up of aluminium oxide liquation and ferrum liquid。The upper open end inflow feed liquid that mixing melt gathers pond 602 from cylinder 503 front end exit by feed liquid is gathered in pond 602。Conductive electrode 10 is energized simultaneously, now feed liquid is gathered and is filled with mixing melt in pond 602, have electric current by mixing melt, under the both sides field pole 11 being perpendicular to conductive electrode 10 acts on, ferrum liquid in mixing melt is produced downward Lorentz force, in conjunction with himself action of gravity, ferrum liquid is deposited on feed liquid and gathers below pond 602, aluminium oxide liquation covers on ferrum liquid, gather the annular gap 401 that pond 602 lower exit port flows out between binder disk 6 and steel pipe 1 inwall from feed liquid, it is pressed on steel pipe 1 inwall by binder disk 6 and solidifies formation aluminum oxide ceramic lining。Driving 3 drive conveying worm 5 is driven progressively to leave steel pipe, along with the rotation of steel pipe 1, to continue spiral coating lined ceramics on steel pipe 1 inwall。Outflow feed liquid is gathered the melt in pond 602 and is stopped can not flow to the right by baffle plate 504, being stopped by catch 1103 can not to flowing in paper, simultaneously the front side of paper and left side define the lined ceramics solidified, can only be collected in annular gap 401 thus melt is limited in, it is beneficial to it by binder disk 6 squeezed tight compacting, it is achieved that mechanical pressure produces lined ceramics steel pipe。
Claims (9)
1. utilize the method that electromagnetic force and mechanical pressure are coated with lined ceramics at steel pipe inner wall, including:
The steel pipe making lined ceramics to be coated is maintained under the state continuing to rotate；
By a conveying worm that can extend into steel duct, will be mixed, by brown iron oxide and aluminium powder, the lined ceramics position to be coated that the thermite formed continues to be delivered in steel pipe；
By being arranged on a pair ignitor of conveying worm front end, thermite being lighted a fire, make to be delivered to the thermite self-propagating combustion of conveying worm front end, reaction produces the mixing melt of aloxite (AI2O3) and ferrum liquid；
Pair of conductive electrode and pair of magnetic field magnetic pole it is provided with mutual vertically in the exit of conveying worm, the pair of conductive electrode is to flowing out conveying worm to the mixing melt energising in steel pipe, make the ferrum liquid in mixing melt charged, with ferroelectric liquid under the action of a magnetic field that pair of magnetic field magnetic pole produces, produce downward Lorentz force, separate with aloxite (AI2O3), be deposited on the inwall of steel pipe, aloxite (AI2O3) covers on ferrum liquid, forms aluminum oxide ceramic lining coating；
One binder disk is set in conveying worm front end mixing melt exit, along with the rotation of steel pipe, utilizes the mechanical pressure of binder disk, the aluminum oxide ceramic lining coating of formation is pressed on the surface of steel pipe；
Described conveying worm moves axially along steel pipe simultaneously, to continue to be coated with lined ceramics at steel pipe inner wall。
2. the method being coated with lined ceramics at steel pipe inner wall according to claim 1, is characterized in that described binder disk adopts insulant to make。
3. based on the lined ceramics composite steel tube process units of electromagnetic force and mechanical pressure, including:
One frame, is provided with some pair rollers in described frame, for placing the steel pipe being intended to coating lined ceramics, drives steel pipe original position in frame to rotate；
One driving, is positioned at frame side, can move along steel pipe axial reciprocating；
One is arranged on the conveying worm in driving, including a front opening cylinder, be positioned at the feed hopper of conveyer cylinder back-end and be installed on cylinder the thermite entered by feed hopper to be delivered to the spiral guide rod of barrel front end；The cylinder of described conveying worm can stretch in the steel pipe in frame, and the movement of following vehicle is at steel in-pipe；Front opening at described cylinder is connected below the baffle plate of one piece of circular arc, and the lower edge of described baffle plate contacts with steel pipe inner wall；
A pair ignitor, is arranged on the cylinder of the conveying worm port of export, produces mixing melt for the thermite being delivered to conveying worm barrel front end opening part is lighted generation thermit reaction；
One binder disk being fixedly connected on conveying worm barrel front end opening, described binder disk and steel pipe are coaxially disposed, the annular gap being equivalent to inner lining of steel pipe ceramic thickness is formed between periphery and the steel pipe inner wall of binder disk, the plane that described binder disk is relative with conveying worm barrel front end baffle plate is provided with a downward blow tank, is made up of the feed liquid that a upper open end connects with in helical feed machine drum body, lower open end connects with annular gap the baffle plate of described blow tank with conveying worm barrel front end and gathers pond；
Pair of magnetic field magnetic pole, is fixed on the blow tank both sides of binder disk in the way of opposite pole is relative, and the magnetic line of force gathers pond horizontal through described feed liquid；
Pair of conductive electrode, is relatively separately mounted on described binder disk and baffle plate, is perpendicular to pair of magnetic field magnetic pole, when the mixing melt energising gathered to feed liquid in pond, to produce downward Lorentz force under the action of a magnetic field。
4. lined ceramics composite steel tube process units according to claim 3, it is characterized in that the pair of field pole includes a long field pole and a short field pole, described short field pole does not grow binder disk blow tank, long field pole grows blow tank, contact with steel pipe inner wall, constituting lateral catch, described steel pipe, with long field pole for starting point, is rotated to short field pole direction by long field pole。
5. lined ceramics composite steel tube process units according to claim 3, is characterized in that the end of described spiral guide rod is movably connected on described binder disk。
6. lined ceramics composite steel tube process units according to claim 3, it is characterized in that the cylinder arranged outside at described conveying worm has several bracing frames, support frame as described above is by an annulus set, and several length-adjustable pillars composition that annulus set outer symmetrical is arranged, the internal diameter of described annulus set and cylinder major diameter fit, being fixed on cylinder, the end of pillar holds out against on the inwall of steel pipe。
7. lined ceramics composite steel tube process units according to claim 6, is characterized in that being provided with positioning bead at the end of described pillar, and the steel ball of described positioning bead contacts with steel pipe inner wall。
8. lined ceramics composite steel tube process units according to claim 3, is characterized in that described conveying worm is formed by multiple unit member are threaded。
9. lined ceramics composite steel tube process units according to claim 8, is characterized in that the length of each unit member of described conveying worm is 1 meter。
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| CN106756746A (en) * | 2015-11-20 | 2017-05-31 | 天津鹰麟节能科技发展有限公司 | Lining earthenware duct centrifugation coating unit |
| CN106381489B (en) * | 2016-11-29 | 2019-02-26 | 中国矿业大学 | Laser melting coating extrusion coating preparation facilities and method |
| CN113046743B (en) * | 2021-02-05 | 2022-05-20 | 江苏大学 | Device and method for magnetic field assisted ultrahigh-speed laser cladding of pipe coatings |
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| JPH0240741B2 (en) * | 1986-10-01 | 1990-09-13 | Kogyo Gijutsuin | ATSUNIKUSERAMITSUKUKOOTEINGUHOHO |
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| CN102505117A (en) * | 2011-09-09 | 2012-06-20 | 内蒙古科技大学 | Manufacturing method for ceramic-lined composite steel pipe |
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| CN102899663A (en) * | 2012-10-30 | 2013-01-30 | 江阴东大新材料研究院 | Method of preparing metal coating on inner surface of steel pipe through SHS (Self-propagation High-temperature Synthesis) centrifugal method |
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