CN102641924B - Manufacturing device and method for bimetal composite hot bend - Google Patents
Manufacturing device and method for bimetal composite hot bend Download PDFInfo
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- CN102641924B CN102641924B CN201210143257.3A CN201210143257A CN102641924B CN 102641924 B CN102641924 B CN 102641924B CN 201210143257 A CN201210143257 A CN 201210143257A CN 102641924 B CN102641924 B CN 102641924B
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Abstract
The invention discloses a manufacturing device and a method for a bimetal composite hot bend. The device comprises a thermal induction bend mechanism, an inert gas protecting system and an automatic control system, wherein the thermal induction bend mechanism comprises a rack, a hydraulic cylinder and a hydraulic control system, a rolling wheel, a heating inductor, a limiting stopper, a rotating clamp and a first cooler are arranged on the rack, the inert gas protecting system comprises a gas inlet end socket, an exhausting end socket and a gas circulating pipeline, and a gas inlet end valve, an exhausting end valve, a gas concentration tester, a gas motor and a second cooler are mounted on the gas circulating pipeline. The method includes the steps of intercepting a required bimetal composite pipe, sealing the bimetal composite pipe, installing the bimetal composite pipe on the thermal induction bend mechanism, connecting the inert gas protecting system and roasting and bending. The manufacturing device and the method for the bimetal composite hot bend are reasonable in design, high in intelligent degree, applicability, rate of finished products, product qualities and practicability, and convenient to popularize and apply.
Description
Technical field
The invention belongs to pipeline connection technique field, especially relate to a kind of center line not manufacturing equipment and the manufacture method of the compound hot-bending bends of bimetallic point-blank.
Background technology
Bending Pipes is by the pipe fitting of two mutual UNICOMs of bimetal compound pipeline on same straight line not, is one of indispensable pipe fitting in various high-low pressure pipelines, is also the basic original paper of extensive use during pipeline connects.But at present because domestic Bending Pipes interconnection technique exists certain difficulty, therefore, existing bend pipe adopts corrosion resistant alloy pipe substantially, as titanium alloy steel pipe, nickel alloy steel pipe etc., the subject matter that these bend pipes exist is that price is high, strength ratio carbon steel pipe is low, and adopts carbon steel bend pipe corrosion resisting property to be difficult to meet the demands.And Bending Pipes prepared by current used manufacturing equipment and process is because internal lining pipe is thinner, be prone to wrinkling, oxidation and base lining segregation phenomenon; For high strength basal body pipe, if it is improper that induction heating temperature, cooling velocity and passing speed are controlled, its mechanical property is difficult to again guarantee, existing manufacture method is difficult to reach the specification requirement of bimetallic hot-bending bends, therefore how to produce simply, easily the Bending Pipes that meets specification requirement, for the further application of composite bimetal pipe, prevent oil gas field corrosive pipeline, reduce use cost and seem very necessary.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, provide a kind of combination simple, reasonable in design, realize manufacturing equipment convenient and the compound hot-bending bends of bimetallic that intelligent degree is high.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the manufacturing equipment of the compound hot-bending bends of a kind of bimetallic, it is characterized in that: comprise for composite bimetal pipe being carried out to thermoinduction pipe bending mechanism that fire bending bends and for pass into the inert gas protection system of inertia refrigerating gas to composite bimetal pipe inner chamber, and for thermoinduction pipe bending mechanism and inert gas protection system are carried out to the automatic control system of automatically controlling, described thermoinduction pipe bending mechanism comprises frame, for promoting that hydraulic cylinder that composite bimetal pipe moves is connected with hydraulic cylinder and for controlling the hydraulic control system of hydraulic cylinder passing, and be arranged in frame and for placing the roller of composite bimetal pipe, for heating heating inductor and the stop for the angle of bend of composite bimetal pipe is controlled of composite bimetal pipe, in the frame between described heating inductor and stop, by rolling clamp turning cylinder, be rotationally connected and be useful on the rolling clamp that clamps composite bimetal pipe and drive the bending of composite bimetal pipe one end, be positioned in the frame of described heating inductor one side and be provided with for composite bimetal pipe being carried out to the first cooling cooler, described inert gas protection system comprises inlet end end socket and the exhaust end end socket that is sealedly connected on respectively composite bimetal pipe two ends, and be connected to the gas circulation pipeline between inlet end end socket and exhaust end end socket, described gas circulation pipeline and inert gas source of the gas join, near on the gas circulation pipeline of described inlet end end socket, be provided with inlet end valve, near on the gas circulation pipeline of described exhaust end end socket, be provided with exhaust end valve, on gas circulation pipeline between described exhaust end end socket and exhaust end valve, be provided with the gas concentration tester that detects and show for gas concentration in to gas circulation pipeline, on the gas circulation pipeline between described inlet end valve and exhaust end valve, be provided with aeromotor and the second cooler, described heating inductor, the first cooler, hydraulic control system, stop, gas concentration tester, aeromotor and the second cooler are all electrically connected to described automatic control system.
The manufacturing equipment of the above-mentioned compound hot-bending bends of bimetallic, it is characterized in that: the first thermometer and the second thermometer for the chilling temperature of the first cooler is detected for the heating-up temperature of heating inductor is detected are installed in described frame, the 3rd thermometer that is provided with the pressure gauge that detects for gas pressure in to gas circulation pipeline on gas circulation pipeline between described inlet end end socket and inlet end valve and detects for gas temperature in to gas circulation pipeline, described the first thermometer, the second thermometer, pressure gauge and the 3rd thermometer are all electrically connected to described automatic control system.
The manufacturing equipment of the above-mentioned compound hot-bending bends of bimetallic, it is characterized in that: described hydraulic control system comprises oil sources and the oil pump being connected with oil sources, described hydraulic cylinder is connected with oil pump with the hydraulic valve being arranged on oil pipe by oil pipe, is provided with the velocity sensor detecting for the passing speed to hydraulic cylinder on described hydraulic cylinder.
The manufacturing equipment of the above-mentioned compound hot-bending bends of bimetallic, it is characterized in that: the operation control panel that described automatic control system comprises controller module, join with controller module and be the power module of controller module and operation control panel power supply, described stop, the first thermometer, the second thermometer, pressure gauge, the 3rd thermometer and velocity sensor all join with the input of described controller module, and described heating inductor, the first cooler, aeromotor, the second cooler, hydraulic valve and oil pump all join with the output of described controller module.
The manufacturing equipment of the above-mentioned compound hot-bending bends of bimetallic, is characterized in that: being shaped as of described rolling clamp is similar L shaped.
The manufacturing equipment of the above-mentioned compound hot-bending bends of bimetallic, is characterized in that: described controller module is programmable logic controller module.
The present invention also provides the manufacture method of the compound hot-bending bends of bimetallic that a kind of intelligent degree is high, practical, yield rate is high, product quality is high, it is characterized in that the method comprises the following steps:
The required composite bimetal pipe of the compound hot-bending bends of bimetallic is manufactured in step 1, intercepting: according to the radius of curvature R of the compound hot-bending bends of bimetallic of required processing, bend angles alpha and length of straigh line L
1, and according to formula
calculate the length L of the composite bimetal pipe of required intercepting, and manufacture the required composite bimetal pipe of the compound hot-bending bends of bimetallic by length L intercepting;
Step 4, connect inert gas protection system: first by pressure gauge, the 3rd thermometer, inlet end valve, aeromotor, the second cooler, gas concentration tester and exhaust end valve are installed on gas circulation pipeline, then one end that inlet end valve is installed on gas circulation pipeline is connected with inlet end end socket, open inert gas source of the gas, inlet end valve and exhaust end valve, in gas circulation pipeline, pass into inert gas and replace the air in composite bimetal pipe inner chamber, gas concentration tester detects in real time the inert gas concentration in gas circulation pipeline and shows, inert gas concentration in gas circulation pipeline reaches after required inert gas concentration, one end that exhaust end valve is installed on gas circulation pipeline is connected with exhaust end end socket, form inert gas closed loop cycle system,
Step 5, fire bending bend the compound hot-bending bends of bimetallic: first by automatic control system setup control parameter; then automatic control system is controlled hydraulic control system and inert gas protection system according to the control parameter that sets and composite bimetal pipe is carried out to fire bending is bent; after fire bending has bent; automatic control system is first controlled hydraulic control system and is stopped, then controls inert gas protection system and stop.
Above-mentioned method, is characterized in that: in step 5, by automatic control system setup control parameter and automatic control system, according to the control parameter setting, controlling hydraulic control system and inert gas protection system, that composite bimetal pipe is carried out to the process that fire bending bends is as follows:
501, by operation control panel setup control parameter, controller module receives the control parameter of setting by operation control panel and is stored in corresponding memory cell, and described control parameter comprises the required heating-up temperature of heating inductor, required interior required gas temperature and pressure and the required passing speed of hydraulic cylinder of chilling temperature, gas circulation pipeline of the first cooler;
502, first automatic control system opens heating inductor, the first cooler, aeromotor and the second cooler according to the control parameter of setting in step 501, heating inductor heats composite bimetal pipe, the first cooler and inert gas protection system carry out cooling to composite bimetal pipe, then open hydraulic valve and oil pump, hydraulic control system is controlled hydraulic cylinder and is passed, Hydraulic Cylinder composite bimetal pipe moves, composite bimetal pipe promotes rolling clamp and rotates around rolling clamp turning cylinder, composite bimetal pipe is carried out to fire bending and bend, fire bending bends in process, the first thermometer detects in real time the heating-up temperature of heating inductor and detected signal is exported to controller module, the second thermometer detects in real time the chilling temperature of the first cooler and detected signal is exported to controller module, pressure gauge detects in real time and detected signal is exported to controller module gas pressure in gas circulation pipeline, the 3rd thermometer detects in real time the gas temperature in gas circulation pipeline and detected signal is exported to controller module, velocity sensor detects in real time and detected signal is exported to controller module the passing speed of hydraulic cylinder, controller module receives the first thermometer, the second thermometer, pressure gauge, the signal that the 3rd thermometer and velocity sensor are exported also carries out after analyzing and processing, compare with the control parameter of setting in step 501, control procedure is adjusted in real time,
503, when rolling clamp turns to the position of touching stop, stop gathers the position signalling of rolling clamp and detected signal is exported to controller module, controller module is first closed hydraulic valve, oil pump and heating inductor, then closes the first cooler, aeromotor and the second cooler.
Above-mentioned method, is characterized in that: the value of the bend angles alpha of the compound hot-bending bends of bimetallic described in step 1 and step 3 is 5 °～90 °; The value of the radius of curvature R of the compound hot-bending bends of bimetallic described in step 1 and step 3 is 3d≤R≤10d, and wherein, d represents that the caliber of the compound hot-bending bends of bimetallic and the value of d are 50mm～1200mm; L in step 1
1value be 100mm～1200mm.
The present invention compared with prior art has the following advantages:
1, the present invention is reasonable in design, and it is convenient to realize, and adopts manufacturing equipment of the present invention and manufacture method can produce simply, easily the Bending Pipes that meets specification requirement.
2, applicability of the present invention is strong, the first thermometer for the heating-up temperature of heating inductor is detected is installed in frame, the best bending temperature of different size and material composite bimetal pipe can be guaranteed, and the mechanical property of rear basal body pipe can be guaranteed to bend.
3, the present invention is provided with for thermoinduction pipe bending mechanism and inert gas protection system are carried out to the automatic control system of automatically controlling; stop for the angle of bend of composite bimetal pipe is controlled is installed in frame; when rolling clamp turns to the position of touching stop; manufacturing equipment autostop, intelligent degree is high and can guarantee that the angle of bend of composite bimetal pipe meets manufacture demand.
4, the present invention is when bending the compound hot-bending bends of bimetallic; except composite bimetal pipe outside is quick cooling to basal body pipe outer surface by the first cooler; also in the composite bimetal pipe of sealing, by inert gas protection system, be connected with low temperature and with the inert gas of certain pressure; effectively controlled hot-bending bends cooling velocity; prevented composite bimetal pipe inner surface high-temperature oxydation, wrinkling, and prevented that the basal body pipe that forms composite bimetal pipe from occurring separated with internal lining pipe.
5, the second cooler in inert gas protection system of the present invention can make inert gas be cooled to desired temperature, so that it is cooling fast to form the internal lining pipe of the compound hot-bending bends of bimetallic, and detects by the 3rd thermometer, has effectively guaranteed product quality.
6, yield rate of the present invention is high, the correlation technique parameter that has guaranteed the compound hot-bending bends of bimetallic by temperature, pressure, velocity test and control meets the demands, guaranteed the product quality of the compound hot-bending bends of bimetallic, the compound hot-bending bends surfaces externally and internally of prepared bimetallic is smooth, bushing pipe is wrinkle resistant and be not surperficially oxidized, basal body pipe is not separated with bushing pipe, and basal body pipe mechanical property meets the demands, and can meet well user demand.
7, of the present invention practical, result of use is good, easy to utilize.
In sum, the present invention is reasonable in design, and it is convenient to realize, and intelligent degree is high, and applicability is strong, and yield rate is high, and the compound hot-bending bends quality of prepared bimetallic is high, can meet well user demand, and practical, result of use is good, easy to utilize.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation that manufacturing equipment of the present invention is provided with composite bimetal pipe.
Fig. 2 is the use state diagram of manufacturing equipment of the present invention.
Fig. 3 is the electrical connection diagram of manufacturing equipment of the present invention.
Fig. 4 is the method flow diagram of manufacture method of the present invention.
Description of reference numerals:
The specific embodiment
As depicted in figs. 1 and 2, the manufacturing equipment of the compound hot-bending bends of bimetallic of the present invention, comprise for composite bimetal pipe 1 being carried out to thermoinduction pipe bending mechanism that fire bending bends and for pass into the inert gas protection system of inertia refrigerating gas to composite bimetal pipe 1 inner chamber, and for thermoinduction pipe bending mechanism and inert gas protection system are carried out to the automatic control system of automatically controlling, described thermoinduction pipe bending mechanism comprises frame 13, for promoting that hydraulic cylinder 17 that composite bimetal pipe moves is connected with hydraulic cylinder 17 and for controlling the hydraulic control system of hydraulic cylinder 17 passing, and be arranged in frame 13 and for placing the roller 14 of composite bimetal pipe, for heating heating inductor 12 and the stop 21 for the angle of bend of composite bimetal pipe 1 is controlled of composite bimetal pipe 1, in the frame 13 between described heating inductor 12 and stop 21, by rolling clamp turning cylinder 2, be rotationally connected and be useful on the rolling clamp 9 that clamps composite bimetal pipe 1 and drive composite bimetal pipe 1 one end bending, be positioned in the frame 13 of described heating inductor 12 1 sides and be provided with for composite bimetal pipe 1 being carried out to the first cooling cooler 10, described inert gas protection system comprises inlet end end socket 4 and the exhaust end end socket 5 that is sealedly connected on respectively composite bimetal pipe 1 two ends, and be connected to the gas circulation pipeline 18 between inlet end end socket 4 and exhaust end end socket 5, described gas circulation pipeline 18 joins with inert gas source of the gas 28, near on the gas circulation pipeline 18 of described inlet end end socket 4, be provided with inlet end valve 6, near on the gas circulation pipeline 18 of described exhaust end end socket 5, be provided with exhaust end valve 16, on the gas circulation pipeline 18 between described exhaust end end socket 5 and exhaust end valve 16, be provided with the gas concentration tester 15 for the interior gas concentration of gas circulation pipeline 18 is detected and shown, on the gas circulation pipeline 18 between described inlet end valve 6 and exhaust end valve 16, be provided with aeromotor 20 and the second cooler 19, described heating inductor 12, the first cooler 10, hydraulic control system, stop 21, gas concentration tester 15, aeromotor 20 and the second cooler 19 are all electrically connected to described automatic control system.
As depicted in figs. 1 and 2, in the present embodiment, the first thermometer 11 and the second thermometer 29 for the chilling temperature of the first cooler 10 is detected for the heating-up temperature of heating inductor 12 is detected are installed in described frame 13, on the gas circulation pipeline 18 between described inlet end end socket 4 and inlet end valve 6, be provided with pressure gauge 7 and the 3rd thermometer 8 for the interior gas temperature of gas circulation pipeline 18 is detected for the interior gas pressure of gas circulation pipeline 18 is detected, described the first thermometer 11, the second thermometer 29, pressure gauge 7 and the 3rd thermometer 8 are all electrically connected to described automatic control system.Described hydraulic control system comprises oil sources 22 and the oil pump 23 being connected with oil sources 22, described hydraulic cylinder 17 is connected with oil pump 23 with the hydraulic valve 25 being arranged on oil pipe 24 by oil pipe 24, is provided with the velocity sensor 26 detecting for the passing speed to hydraulic cylinder 17 on described hydraulic cylinder 17.
In conjunction with Fig. 3, in the present embodiment, described automatic control system comprises controller module 27-1, the operation control panel 27-2 joining with controller module 27-1 and be the power module 27-3 of controller module 27-1 and operation control panel 27-2 power supply, described stop 21, the first thermometer 11, the second thermometer 29, pressure gauge 7, the 3rd thermometer 8 and velocity sensor 26 all join with the input of described controller module 27-1, described heating inductor 12, the first cooler 10, aeromotor 20, the second cooler 19, hydraulic valve 25 and oil pump 23 all join with the output of described controller module 27-1.
In the present embodiment, being shaped as of described rolling clamp 9 is similar L shaped.Described controller module 27-1 is programmable logic controller module.
In conjunction with Fig. 4, the manufacture method of the compound hot-bending bends of bimetallic of the present invention, is characterized in that the method comprises the following steps:
The required composite bimetal pipe 1 of the compound hot-bending bends 3 of bimetallic is manufactured in step 1, intercepting: according to the radius of curvature R of the compound hot-bending bends 3 of the bimetallic of required processing, bend angles alpha and length of straigh line L
1, and according to formula
calculate the length L of the composite bimetal pipe 1 of required intercepting, and manufacture the required composite bimetal pipe 1 of the compound hot-bending bends 3 of bimetallic by length L intercepting;
Step 4, connect inert gas protection system: first by pressure gauge 7, the 3rd thermometer 8, inlet end valve 6, aeromotor 20, the second cooler 19, gas concentration tester 15 and exhaust end valve 16 are installed on gas circulation pipeline 18, then one end that inlet end valve 6 is installed on gas circulation pipeline 18 is connected with inlet end end socket 4, open inert gas source of the gas 28, inlet end valve 6 and exhaust end valve 16, in gas circulation pipeline 18, pass into inert gas and replace the air in composite bimetal pipe 1 inner chamber, gas concentration tester 15 detects in real time the inert gas concentration in gas circulation pipeline 18 and shows, inert gas concentration in gas circulation pipeline 18 reaches after required inert gas concentration, one end that exhaust end valve 16 is installed on gas circulation pipeline 18 is connected with exhaust end end socket 5, form inert gas closed loop cycle system,
Step 5, fire bending bend the compound hot-bending bends 1 of bimetallic: first by automatic control system setup control parameter; then automatic control system is controlled hydraulic control system and inert gas protection system according to the control parameter that sets and composite bimetal pipe 1 is carried out to fire bending is bent; after fire bending has bent; automatic control system is first controlled hydraulic control system and is stopped, then controls inert gas protection system and stop.
In the present embodiment, in step 5, by automatic control system setup control parameter and automatic control system, according to the control parameter setting, controlling hydraulic control system and inert gas protection system, that composite bimetal pipe 1 is carried out to the process that fire bending bends is as follows:
501, by operation control panel 27-2 setup control parameter, controller module 27-1 receives the control parameter of setting by operation control panel 27-2 and is stored in corresponding memory cell, and described control parameter comprises the required heating-up temperature of heating inductor 12, the required interior required gas temperature of chilling temperature, gas circulation pipeline 18 and pressure and the required passing speed of hydraulic cylinder 17 of the first cooler 10;
502, first automatic control system opens heating inductor 12 according to the control parameter of setting in step 501, the first cooler 10, aeromotor 20 and the second cooler 19, 12 pairs of composite bimetal pipes 1 of heating inductor heat, the first cooler 10 and inert gas protection system carry out cooling to composite bimetal pipe 1, then open hydraulic valve 25 and oil pump 23, hydraulic control system is controlled hydraulic cylinder 17 and is passed, hydraulic cylinder 17 promotes composite bimetal pipe 1 and moves, composite bimetal pipe 1 promotes rolling clamp 9 and rotates around rolling clamp turning cylinder 2, composite bimetal pipe 1 is carried out to fire bending to be bent, fire bending bends in process, the heating-up temperature of 11 pairs of heating inductors 12 of the first thermometer detects in real time and detected signal is exported to controller module 27-1, the chilling temperature of second 29 pairs, thermometer the first cooler 10 detects in real time and detected signal is exported to controller module 27-1, 7 pairs of interior gas pressures of gas circulation pipeline 18 of pressure gauge detect in real time and detected signal are exported to controller module 27-1, gas temperature in the 3rd 8 pairs, thermometer gas circulation pipeline 18 detects in real time and detected signal is exported to controller module 27-1, the passing speed of 26 pairs of hydraulic cylinders 17 of velocity sensor detects in real time and detected signal is exported to controller module 27-1, controller module 27-1 receives the first thermometer 11, the second thermometer 29, pressure gauge 7, the signal that the 3rd thermometer 8 and velocity sensor 26 are exported also carries out after analyzing and processing, compare with the control parameter of setting in step 501, control procedure is adjusted in real time,
503, when rolling clamp 9 turns to the position of touching stop 21, stop 21 gathers the position signalling of rolling clamp 9 and detected signal is exported to controller module 27-1, controller module 27-1 first closes hydraulic valve 25, oil pump 23 and heating inductor 12, then closes the first cooler 10, aeromotor 20 and the second cooler 19.
In the present embodiment, the value of the bend angles alpha of the compound hot-bending bends 3 of bimetallic described in step 1 and step 3 is 5 °～90 °; The value of the radius of curvature R of the compound hot-bending bends 3 of bimetallic described in step 1 and step 3 is 3d≤R≤10d, and wherein, d represents that the caliber of the compound hot-bending bends 3 of bimetallic and the value of d are 50mm～1200mm; L in step 1
1value be 100mm～1200mm.
In sum, the present invention is when bending the compound hot-bending bends of bimetallic, except composite bimetal pipe 1 outside is quick cooling by 10 pairs of basal body pipe outer surfaces of the first cooler, also in the composite bimetal pipe 1 of sealing, by inert gas protection system, be connected with low temperature and with the inert gas of certain pressure, effectively controlled hot-bending bends cooling velocity, prevented composite bimetal pipe 1 inner surface high-temperature oxydation, wrinkling, and prevented that the basal body pipe that forms composite bimetal pipe 1 from occurring separated with internal lining pipe, effectively guaranteed product quality, the compound hot-bending bends of prepared bimetallic can meet user demand well.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification of above embodiment being done according to the technology of the present invention essence, change and equivalent structure change, and all still belong in the protection domain of technical solution of the present invention.
Claims (9)
1. the manufacturing equipment of the compound hot-bending bends of bimetallic, it is characterized in that: comprise for composite bimetal pipe (1) being carried out to thermoinduction pipe bending mechanism that fire bending bends and for pass into the inert gas protection system of inertia refrigerating gas to composite bimetal pipe (1) inner chamber, and for thermoinduction pipe bending mechanism and inert gas protection system are carried out to the automatic control system of automatically controlling, described thermoinduction pipe bending mechanism comprises frame (13), for promoting that hydraulic cylinder (17) that composite bimetal pipe moves is connected with hydraulic cylinder (17) and for controlling the hydraulic control system of hydraulic cylinder (17) passing, and be arranged in frame (13) and for placing the roller (14) of composite bimetal pipe, be used for heating heating inductor (12) and the stop (21) for the angle of bend of composite bimetal pipe (1) is controlled of composite bimetal pipe (1), the frame (13) being positioned between described heating inductor (12) and stop (21) is above rotationally connected and is useful on the rolling clamp (9) that clamps composite bimetal pipe (1) and drive composite bimetal pipe (1) one end bending by rolling clamp turning cylinder (2), be positioned in the frame (13) of described heating inductor (12) one sides and be provided with for composite bimetal pipe (1) being carried out to cooling the first cooler (10), described inert gas protection system comprises inlet end end socket (4) and the exhaust end end socket (5) that is sealedly connected on respectively composite bimetal pipe (1) two ends, and be connected to the gas circulation pipeline (18) between inlet end end socket (4) and exhaust end end socket (5), described gas circulation pipeline (18) joins with inert gas source of the gas (28), near on the gas circulation pipeline (18) of described inlet end end socket (4), be provided with inlet end valve (6), near on the gas circulation pipeline (18) of described exhaust end end socket (5), be provided with exhaust end valve (16), be positioned at and on the gas circulation pipeline (18) between described exhaust end end socket (5) and exhaust end valve (16), be provided with the gas concentration tester (15) for gas circulation pipeline (18) gas concentration is detected and shown, be positioned at and on the gas circulation pipeline (18) between described inlet end valve (6) and exhaust end valve (16), be provided with aeromotor (20) and the second cooler (19), described heating inductor (12), the first cooler (10), hydraulic control system, stop (21), gas concentration tester (15), aeromotor (20) and the second cooler (19) are all electrically connected to described automatic control system.
2. according to the manufacturing equipment of the compound hot-bending bends of bimetallic claimed in claim 1, it is characterized in that: the first thermometer (11) and the second thermometer (29) for the chilling temperature of the first cooler (10) is detected for the heating-up temperature of heating inductor (12) is detected are installed in described frame (13), be positioned at and on the gas circulation pipeline (18) between described inlet end end socket (4) and inlet end valve (6), be provided with pressure gauge (7) and the 3rd thermometer (8) for gas circulation pipeline (18) gas temperature is detected for gas circulation pipeline (18) gas pressure is detected, described the first thermometer (11), the second thermometer (29), pressure gauge (7) and the 3rd thermometer (8) are all electrically connected to described automatic control system.
3. according to the manufacturing equipment of the compound hot-bending bends of bimetallic claimed in claim 2, it is characterized in that: described hydraulic control system comprises oil sources (22) and the oil pump (23) being connected with oil sources (22), described hydraulic cylinder (17) is connected with oil pump (23) with the hydraulic valve (25) being arranged on oil pipe (24) by oil pipe (24), is provided with the velocity sensor (26) for the passing speed of hydraulic cylinder (17) is detected on described hydraulic cylinder (17).
4. according to the manufacturing equipment of the compound hot-bending bends of bimetallic claimed in claim 3, it is characterized in that: described automatic control system comprises controller module (27-1), the operation control panel (27-2) joining with controller module (27-1) and the power module (27-3) of powering for controller module (27-1) and operation control panel (27-2), described stop (21), the first thermometer (11), the second thermometer (29), pressure gauge (7), the 3rd thermometer (8) and velocity sensor (26) all join with the input of described controller module (27-1), described heating inductor (12), the first cooler (10), aeromotor (20), the second cooler (19), hydraulic valve (25) and oil pump (23) all join with the output of described controller module (27-1).
5. according to the manufacturing equipment of the compound hot-bending bends of bimetallic described in arbitrary claim in claim 1～4, it is characterized in that: being shaped as of described rolling clamp (9) is similar L shaped.
6. according to the manufacturing equipment of the compound hot-bending bends of bimetallic claimed in claim 4, it is characterized in that: described controller module (27-1) is programmable logic controller module.
7. utilize a method for the compound hot-bending bends of manufacturing equipment manufacture bimetallic as claimed in claim 4, it is characterized in that the method comprises the following steps:
The required composite bimetal pipe (1) of the compound hot-bending bends of bimetallic (3) is manufactured in step 1, intercepting: according to the radius of curvature R of the compound hot-bending bends of the bimetallic of required processing (3), bend angles alpha and length of straigh line L
1, and according to formula
calculate the length L of the composite bimetal pipe (1) of required intercepting, and manufacture the required composite bimetal pipe (1) of the compound hot-bending bends of bimetallic (3) by length L intercepting;
Step 2, the composite bimetal pipe intercepting in step 1 (1) is sealed: the two ends that inlet end end socket (4) and exhaust end end socket (5) are sealedly connected on to the composite bimetal pipe (1) intercepting in step 1;
Step 3, composite bimetal pipe (1) is arranged on thermoinduction pipe bending mechanism: first, adjust the position of rolling clamp (9) in frame (13), make rolling clamp (9) vertically be positioned at frame (13) upper, and make distance D between rolling clamp turning cylinder (2) and heating inductor (12) axis equal the radius of curvature R of the compound hot-bending bends of bimetallic (3) of required processing; Then, adjust the position of stop (21) in frame (13), make rolling clamp (9) touch stop (21) after rolling clamp turning cylinder (2) rotates α angle; Then, heating inductor (12) and the first cooler (10) are passed in one end of the composite bimetal pipe of good seal in step 2 (1), be placed on roller (14), and be installed on the upper end of rolling clamp (9), the other end of the composite bimetal pipe of good seal in step 2 (1) is fixedly connected with hydraulic cylinder (17);
Step 4, connect inert gas protection system: first by pressure gauge (7), the 3rd thermometer (8), inlet end valve (6), aeromotor (20), the second cooler (19), gas concentration tester (15) and exhaust end valve (16) are installed on gas circulation pipeline (18), then one end that inlet end valve (6) is installed on gas circulation pipeline (18) is connected with inlet end end socket (4), open inert gas source of the gas (28), inlet end valve (6) and exhaust end valve (16), in gas circulation pipeline (18), pass into inert gas and replace the air in composite bimetal pipe (1) inner chamber, gas concentration tester (15) detects in real time the inert gas concentration in gas circulation pipeline (18) and shows, inert gas concentration in gas circulation pipeline (18) reaches after required inert gas concentration, one end that exhaust end valve (16) is installed on gas circulation pipeline (18) is connected with exhaust end end socket (5), form inert gas closed loop cycle system,
Step 5, fire bending bend the compound hot-bending bends of bimetallic (1): first by automatic control system setup control parameter; then automatic control system is controlled hydraulic control system and inert gas protection system according to the control parameter that sets and composite bimetal pipe (1) is carried out to fire bending is bent; after fire bending has bent; automatic control system is first controlled hydraulic control system and is stopped, then controls inert gas protection system and stop.
8. it is characterized in that in accordance with the method for claim 7: in step 5, by automatic control system setup control parameter and automatic control system, according to the control parameter setting, controlling hydraulic control system and inert gas protection system, that composite bimetal pipe (1) is carried out to the process that fire bending bends is as follows:
501, by operation control panel (27-2) setup control parameter, controller module (27-1) receives the control parameter of setting by operation control panel (27-2) and is stored in corresponding memory cell, and described control parameter comprises the required heating-up temperature of heating inductor (12), required interior required gas temperature and pressure and the required passing speed of hydraulic cylinder (17) of chilling temperature, gas circulation pipeline (18) of the first cooler (10);
502, first automatic control system opens heating inductor (12) according to the control parameter of setting in step 501, the first cooler (10), aeromotor (20) and the second cooler (19), heating inductor (12) heats composite bimetal pipe (1), the first cooler (10) and inert gas protection system carry out cooling to composite bimetal pipe (1), then open hydraulic valve (25) and oil pump (23), hydraulic control system is controlled hydraulic cylinder (17) and is passed, it is mobile that hydraulic cylinder (17) promotes composite bimetal pipe (1), composite bimetal pipe (1) promotes rolling clamp (9) and rotates around rolling clamp turning cylinder (2), composite bimetal pipe (1) is carried out to fire bending to be bent, fire bending bends in process, the first thermometer (11) detects in real time the heating-up temperature of heating inductor (12) and detected signal is exported to controller module (27-1), the second thermometer (29) detects in real time the chilling temperature of the first cooler (10) and detected signal is exported to controller module (27-1), pressure gauge (7) detects in real time and detected signal is exported to controller module (27-1) the interior gas pressure of gas circulation pipeline (18), the 3rd thermometer (8) detects in real time and detected signal is exported to controller module (27-1) the gas temperature in gas circulation pipeline (18), velocity sensor (26) detects in real time the passing speed of hydraulic cylinder (17) and detected signal is exported to controller module (27-1), controller module (27-1) receives the first thermometer (11), the second thermometer (29), pressure gauge (7), the signal that the 3rd thermometer (8) and velocity sensor (26) are exported also carries out after analyzing and processing, compare with the control parameter of setting in step 501, control procedure is adjusted in real time,
503, when rolling clamp (9) turns to the position of touching stop (21), stop (21) gathers the position signalling of rolling clamp (9) and detected signal is exported to controller module (27-1), controller module (27-1) is first closed hydraulic valve (25), oil pump (23) and heating inductor (12), then closes the first cooler (10), aeromotor (20) and the second cooler (19).
9. it is characterized in that in accordance with the method for claim 7: the value of the bend angles alpha of the compound hot-bending bends of bimetallic described in step 1 and step 3 (3) is 5 °～90 °; The value of the radius of curvature R of the compound hot-bending bends of bimetallic described in step 1 and step 3 (3) is 3d≤R≤10d, and wherein, d represents that the caliber of the compound hot-bending bends of bimetallic (3) and the value of d are 50mm～1200mm; L in step 1
1value be 100mm～1200mm.
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| CN103447362A (en) * | 2013-08-26 | 2013-12-18 | 河南省驰源石油化工机械有限公司 | Method for producing arc-shaped steel pipes |
| CN103861909B (en) * | 2014-04-03 | 2015-09-09 | 汪贤女 | With bending roll range sensor and destressing heat treated U-shaped crooking of the tubes technique |
| MX2017004408A (en) | 2014-10-07 | 2017-06-19 | Nippon Steel & Sumitomo Metal Corp | Cooling apparatus and cooling method for steel material. |
| CN108620461B (en) * | 2018-07-05 | 2023-09-08 | 东腾机械(大连)有限公司 | Induction limiting and cooling device for hot bending pipe |
| CN110181228B (en) * | 2019-05-17 | 2021-02-02 | 东莞材料基因高等理工研究院 | Manufacturing process of bimetal mechanical composite bent pipe |
| CN111515276B (en) * | 2020-05-06 | 2021-04-13 | 中国空气动力研究与发展中心高速空气动力研究所 | Hot-push bending forming method for wind tunnel curved knife |
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