CN108500440B - Steel bar spiral heating welding device and welding method thereof - Google Patents
Steel bar spiral heating welding device and welding method thereof Download PDFInfo
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- CN108500440B CN108500440B CN201810076929.0A CN201810076929A CN108500440B CN 108500440 B CN108500440 B CN 108500440B CN 201810076929 A CN201810076929 A CN 201810076929A CN 108500440 B CN108500440 B CN 108500440B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
- B23K13/015—Butt welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K13/00—Welding by high-frequency current heating
- B23K13/08—Electric supply or control circuits therefor
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Abstract
The invention provides a steel bar spiral heating welding device, which comprises: a long straight support rack; the propellers are oppositely arranged; an electric heater arranged between the two propellers; the electrified heater is provided with a high-frequency coil; and the hydraulic device is arranged between the propeller and the electrified heater and comprises a hydraulic pipe wrench. Correspondingly, the invention provides a spiral heating and welding method of reinforcing steel bars, which comprises the steps of inserting two reinforcing steel bars to be welded from a propeller, sequentially penetrating through the propeller and a guide steel pipe, finally extending into the high-frequency coil, enabling an electrified heater to work, starting the propeller when the heating temperature reaches a preset temperature, and closing the propeller until the joint of the two reinforcing steel bars to be welded forms an olive shape; then moving the joint of the steel bar to be welded into a hydraulic device, and then starting a hydraulic pump to extrude the redundant steel bar; and finally, the hydraulic pump returns oil, the steel bar joint is quenched, welding is completed, the structure is simplified, the material consumption is reduced, and the welding efficiency is improved.
Description
Technical Field
The invention relates to the technical field of building construction and steel bar welding, in particular to a steel bar spiral heating welding device and a welding method thereof.
Background
With the rapid development of the economy of China, modern bridges, tunnels and buildings are rapidly developed. The reinforcing steel bar is widely applied as a main body supporting structure in bridge, tunnel and building engineering. In practical application, the reinforcing steel bars are mainly bound or welded to form a reinforcing steel bar pipe frame and are placed in a foundation pit or precast concrete, then the reinforcing steel bars need to be connected under certain conditions according to different actual construction requirements, the length of the reinforcing steel bars is increased, and shorter reinforcing steel bars need to be welded for utilization under other conditions, so that steel is saved, and the engineering quality and the economic benefit are improved.
In the prior art, the welding of the steel bars is divided into two forms of pressure welding and fusion welding. Pressure welding comprises flash butt welding, resistance spot welding and gas pressure welding; fusion welding includes arc welding and electroslag pressure welding. However, the welding method is usually to butt-joint the welding rods to be welded, and then to heat-weld the welding rods by electric welding or gas welding equipment according to respective processes, and in long-term production and practice, it is difficult to see that, on one hand, the traditional welding method requires various welding equipment, the welding operation is complicated, and meanwhile, the technical requirement on the electric welder is high, and it takes a lot of time to train the welding equipment to work, and purchasing various welding equipment also greatly increases the production cost, on the other hand, the welding rods need to be repeatedly intercepted, spliced and the like according to various welding requirements during actual construction, and the traditional welding method needs to meet different welding requirements, consumes a lot of man-hours and welding rods, and the welding efficiency is difficult to be guaranteed, and the production cost is greatly increased.
In view of the above, a new reinforcing bar welding apparatus and method should be provided to solve the above technical problems in the prior art.
Disclosure of Invention
The invention aims to solve the technical problems and provide a reinforcing steel bar spiral heating welding device and a welding method thereof, wherein the reinforcing steel bar spiral heating welding device has a simplified structure, is simple and convenient in welding operation, can be used for working after being trained simply, and can effectively reduce welding time and welding consumables while rapidly improving the welding efficiency and quality of reinforcing steel bars on site.
In order to achieve the above object, the present invention provides a reinforcing bar spiral heat welding apparatus, comprising: the two propellers are oppositely arranged, one side of each propeller, which faces the other propeller, is provided with a guide steel pipe, and the pipe orifice of each guide steel pipe corresponds to the pipe orifice of the corresponding propeller; the electric heater is arranged between the two propellers which are oppositely arranged; a hydraulic device disposed between one of the thrusters and the energized heater.
Preferably, the propeller may comprise a fine-tuning controller and a propulsion controller, the fine-tuning controller is used for adjusting the position of the steel bar on the propeller, and when the propulsion controller is started, the two propellers move relatively.
Preferably, the guide tube may be provided with a reinforcing bar holder for fixing the reinforcing bar in the mover so as not to be displaced along with the relative movement of the mover.
Preferably, the electric heater comprises a high-frequency coil, and an insulating layer can be wrapped outside the high-frequency coil.
Preferably, the device may further comprise a voltmeter, an ammeter and a thermometer for recording the current, voltage and current temperature of the energized heater during welding.
Preferably, the hydraulic device comprises a hydraulic pipe wrench and a hydraulic pump, the thread or the longitudinal rib of the inner cavity of the hydraulic pipe wrench can be consistent with the outer convex thread or the longitudinal rib of the steel bar to be welded, and the diameter of the inner cavity of the hydraulic pipe wrench is the same as that of the steel bar to be welded.
Correspondingly, the invention also provides a steel bar spiral heating welding method based on the steel bar spiral heating welding device, which comprises the following steps: s1, inserting the two steel bars to be welded into the thrusters on the two sides respectively, and sequentially penetrating the thrusters and the guide steel pipes to finally enable the heads of the two steel bars to be welded to extend into the electric heater; s2, enabling the electrified heater to work, starting the propellers when the temperature is heated to a preset temperature, enabling the two propellers to move relatively until the joint of the two steel bars to be welded is extruded to form an olive shape, and then closing the propellers; s3, adjusting the position of the steel bar through the propeller to move the joint of the steel bar to be welded into a hydraulic device, so that the redundant steel bar at the joint is extruded out of the hydraulic device; and S4, quenching the steel bar joint and completing welding.
Preferably, in the step S1, the fine tuning controller may be adjusted such that the two reinforcing bars to be welded are located at the coaxial positions, and then the two reinforcing bars to be welded are fixed by the reinforcing bar jig.
Preferably, in the step S2, the preset temperature may be in the range of 1250 ℃ to 1400 ℃.
Preferably, in the step S3, the current, voltage and temperature of the energized heater during welding may be recorded by an ammeter, voltmeter and thermometer, and a current-voltage curve and a temperature-time curve are generated.
According to the above description and practice, the reinforcing steel bar spiral heating welding device and the welding method thereof of the invention have the advantages that the two propellers are oppositely arranged, the front ends of the propellers are respectively provided with the guide steel pipes in an extending way, the electrified heater is arranged between the two propellers, the two reinforcing steel bars to be welded are respectively penetrated into the propellers at the two sides, then penetrate through the guide steel pipes and the electrified heater in sequence, finally approach each other in the high-frequency coil of the electrified heater, the propellers are started after the positions of the reinforcing steel bars are adjusted and fixed through the fine adjustment controller, the propellers are enabled to approach each other, the electrified heater is heated and welded, then the redundant reinforcing steel bars at the welding joint are extruded out of the hydraulic pipe tongs through the hydraulic pump of the hydraulic device. The device has comparatively simplified structure, only needs two propellers, heater and hydraulic means just can accomplish the welding with high efficiency, and just only need adjust the interval of propeller and the position of heater simply just can satisfy under the different construction conditions to length reinforcing bar welded needs, when increasing substantially field weld efficiency, played the effect of saving steel, reduction in production cost. In addition, the spiral heating and welding device for the steel bars further comprises an ammeter, a voltmeter and a thermometer, the whole process of the welding process records the change of welding current, voltage and temperature in real time, and a current-voltage curve and a temperature-time curve are generated at any time, so that on one hand, an operator can start and stop the electrified heater and the propeller according to the change of the temperature in real time, and can timely stop heating and start the hydraulic device when the steel bars are heated to be close to the melting point of the steel bars, and on the other hand, the welding quality of the steel bars can be further ensured and improved by monitoring the change of the current and the voltage. The invention also provides a steel bar spiral heating welding method, the heating temperature of the steel bar is controlled within the range of 1250 ℃ to 1400 ℃ in the welding process, when the olive shape at the welding joint is observed, the heating is stopped, and the redundant steel bar is extruded out of the hydraulic pipe tongs by adopting a hydraulic pump.
Drawings
Fig. 1 is a schematic view showing the structure of a reinforcing bar spiral heat welding apparatus according to an embodiment of the present invention;
FIG. 2 is a sectional view showing a sectional structure in the direction A-A of FIG. 1;
FIG. 3 is a sectional view showing a sectional structure in the direction B-B in FIG. 1;
FIG. 4 is a cross-sectional view showing a cross-sectional structure in the direction C-C of FIG. 1;
fig. 5 is a partial sectional view showing a partial sectional structure of a hydraulic pressure wrench in the reinforcing bar helical heating welding apparatus of fig. 1;
fig. 6 is a flow chart showing a reinforcing bar spiral heating welding method according to the present invention.
Detailed Description
An embodiment of a reinforcing bar spiral heating welding apparatus and a welding method thereof according to the present invention will be described below with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways, without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.
Fig. 1 is a schematic view showing the structure of a reinforcing bar spiral heat welding apparatus according to an embodiment of the present invention. As shown in fig. 1, the spiral heating and welding apparatus for reinforcing bars according to one embodiment of the present invention includes a long and straight support frame 1, and two thrusters 2, an electric heater 3, and a hydraulic device 4 provided on the support frame 1.
Specifically, two thrusters 2 are oppositely arranged on two sides of the support platform 1, and when the thrusters 2 are opened, the thrusters can slowly move relatively on the support platform 1, and in other embodiments of the present invention, a thrusting track can be formed on the support platform 1, so that the thrusters 2 can move relatively on the support platform 1 more smoothly. Fig. 2 is a sectional view showing a sectional structure in a direction a-a of fig. 1. As shown in fig. 2, a guiding steel pipe 5 is arranged on one side of each thruster 2 facing the other thruster 2, the pipe orifice of the guiding steel pipe 5 corresponds to the pipe orifice of the thruster 2, and the guiding steel pipes 5 on the two thrusters 2 are arranged oppositely, during welding, the steel bar 6 to be welded enters the guiding steel pipe 5 after being inserted from the pipe orifice of the thruster 2 and then extends out from the pipe orifice of the guiding steel pipe 5, and when the thruster 2 is opened, the steel bar 6 can move along with the thruster 2. The steel bar clamp 51 is further arranged on the guide steel pipe 5, and the steel bar clamp 51 is used for fixing steel bars inserted into the propeller 2 and the guide steel pipe 5, so that the steel bars do not displace when moving relatively along with the propeller 2. In addition, the propeller 2 further comprises a fine adjustment controller 21 and a propeller controller 22, in the embodiment of the present invention, the fine adjustment controller 21 is designed as a knob-shaped controller, and when the steel bar 6 is inserted into the propeller 2, the position of the steel bar 6 in the propeller 2 is finely adjusted by rotating the fine adjustment controller 21, so as to ensure that the steel bars 6 in the two propellers 2 are coaxially arranged; in this embodiment of the invention, the pusher 2 is controlled to move or stop by turning on or off the pusher controller 22.
Fig. 3 is a sectional view showing a sectional structure in the direction B-B in fig. 1. Referring to fig. 1 and 3, an electric heater 3 is disposed between the two thrusters 2 disposed opposite to each other, and the electric heater 3 may include a high-frequency coil 31 and an insulating layer 32. The high-frequency coil 31 is a coil group wound in a spiral shape, an insulating layer 32 is wrapped on the outer side of the coil group, two steel bars 6 to be welded extend out of the guide steel pipe 5 and then extend into the high-frequency coil 31, the two steel bars approach each other in the high-frequency coil 31, a gap is formed at the position of the approach, and the gap is defined as a welding head 61. When the electric heater 3 works, the high-frequency coil 31 is electrified to form a magnetic field with the inside of the high-frequency coil under the action of alternating current, the alternating magnetic field enables the steel bars to be welded arranged in the high-frequency coil to cut alternating magnetic lines, so that alternating eddy current is formed in the steel bars 6, the eddy current enables the steel bars to generate heat, at the moment, the insulating and heat-insulating layer 32 wrapped on the outer side of the high-frequency coil 31 keeps heat energy in the coil, on one hand, the loss of heat in the heating process can be reduced, on the other hand, the high-frequency coil on the outer side can be protected from being damaged due to quick overheating, and the service lives of the high-frequency coil. In this embodiment of the invention, the spiral heating welding apparatus may further comprise a voltmeter 7, an ammeter 8 and a thermometer 9 for recording the current, voltage and current temperature of the energized heater 3 during the entire welding process, in other embodiments of the invention, the energized heater 3 may integrate a voltmeter 7, an ammeter 8 and a thermometer 9, and can generate a current-voltage curve and a temperature-time curve in real time according to the indexes of the voltmeter 7, the ammeter 8 and the thermometer 9 in the welding process, this allows, on the one hand, the operator to switch on and off the electric heater 3 or the pusher 2 in real time, according to the temperature variations, and when heated to the preset temperature, the heating can be stopped and the hydraulic device 4 can be started in time, and on the other hand, the welding quality of the steel bar can be further ensured and improved by monitoring the change of current and voltage.
Fig. 4 is a sectional view showing a sectional structure in the direction C-C of fig. 1. Fig. 5 is a schematic view illustrating the structure of a hydraulic pressure wrench in the reinforcing bar helical heating welding apparatus of fig. 1. As shown in fig. 4 and 5, the hydraulic device 4 is disposed between the propeller 2 and the electric heater 3, the hydraulic device 4 includes a hydraulic pipe wrench 41 and a hydraulic pump 42, the thread or longitudinal rib of the inner cavity of the hydraulic pipe wrench 41 coincides with the outer convex thread or longitudinal rib of the reinforcing steel bar 6 to be welded, and the inner cavity of the hydraulic pipe wrench 41 has the same diameter as the reinforcing steel bar 6 to be welded. According to the indication of the thermometer 9, when the heating temperature is close to the melting point of the steel bar, the propulsion controller 22 is started to enable the propeller 2 to slowly move relatively, when the joint of the steel bar 6 is extruded to be olive-shaped at the welding joint 61, the propeller 2 is closed, then the steel bar 6 to be welded is adjusted through the fine adjustment controller 21 and the propulsion controller 22 and is moved to the hydraulic pipe tongs 41 of the hydraulic device 4, then the hydraulic pump 42 is started, the hydraulic pipe tongs 41 is enabled to extrude the steel bar 6 to be welded to enable the two steel bars 6 to be mutually extruded, redundant steel bars are extruded out of the hydraulic pipe tongs 41, finally the hydraulic pump 42 returns oil, the steel bar is released, the joint is quenched, and the welding work is completed. In addition, in this embodiment of the present invention, the hydraulic pipe wrench 41 includes two-way type clamping pieces, so that the reinforcing bar spiral heating welding device of the present invention can be adapted to different types of reinforcing bars by replacing different clamping pieces.
Correspondingly, based on the above, the invention further provides a steel bar spiral heating welding method, and fig. 6 is a flow chart showing the steel bar spiral heating welding method. As shown in fig. 6, the method for heating and welding the reinforcing bar helix according to one embodiment of the present invention includes the following steps: s1, inserting the two steel bars 6 to be welded into the propellers 2 at two sides respectively, sequentially penetrating the propellers 2 and the guide steel pipes 5, and finally enabling the heads of the two steel bars 6 to be welded to extend into the high-frequency coil 31 of the electric heater 3 and to approach each other to form a welding head 61; s2, enabling the electrified heater 3 to work, observing the thermometer 9, starting the propellers 2 when the temperature is heated to a preset temperature, enabling the two propellers 2 to slowly move relatively until the joint of the two steel bars 6 to be welded is olive-shaped, and then closing the propellers 2; s3, adjusting the position of the steel bar through the propeller 2 to move the joint of the steel bar to be welded into the hydraulic pipe wrench 41 of the hydraulic device 4, and then starting the hydraulic pump 42 to extrude the redundant steel bar at the joint out of the hydraulic pipe wrench 41; and S4, returning oil to the hydraulic pump 42, quenching the steel bar joint, and completing welding.
Preferably, the cut is first milled flat with the rebar ends before inserting the rebar 6 into the pusher 2.
Here, in step S1, the fine tuning controller 21 is adjusted so that the reinforcing bars 6 to be welded are positioned at the coaxial positions, and then fixed by the reinforcing bar holders 51. In step S2, the preset temperature is in the range of 1250 ℃ to 1400 ℃. In step S3, the current, voltage, and temperature of the energization heater 3 during welding are recorded by the ammeter 8, the voltmeter 7, and the thermometer 9, and a current-voltage curve and a temperature-time curve are generated. Preferably, the heating time of the steel bar 6 in the electric heater 3 is 45 seconds, the degree of the ammeter 10 is 14A, and the degree of the voltmeter 10 is 380V.
According to the above description and practice, the reinforcing steel bar spiral heating welding device and the welding method thereof of the invention have the advantages that the two propellers are oppositely arranged, the front ends of the propellers are respectively provided with the guide steel pipes in an extending way, the electrified heater is arranged between the two propellers, the two reinforcing steel bars to be welded are respectively penetrated into the propellers at the two sides, then penetrate through the guide steel pipes and the electrified heater in sequence, finally approach each other in the high-frequency coil of the electrified heater, the propellers are started after the positions of the reinforcing steel bars are adjusted and fixed through the fine adjustment controller, the propellers are enabled to approach each other, the electrified heater is heated and welded, then the redundant reinforcing steel bars at the welding joint are extruded out of the hydraulic pipe tongs through the hydraulic pump of the hydraulic device. The device has comparatively simplified structure, only needs two propellers, heater and hydraulic means just can accomplish the welding with high efficiency, and just only need adjust the interval of propeller and the position of heater simply just can satisfy under the different construction conditions to length reinforcing bar welded needs, when increasing substantially field weld efficiency, played the effect of saving steel, reduction in production cost. In addition, the spiral heating and welding device for the steel bars further comprises an ammeter, a voltmeter and a thermometer, the whole process of the welding process records the change of welding current, voltage and temperature in real time, and a current-voltage curve and a temperature-time curve are generated at any time, so that on one hand, an operator can start and stop the electrified heater and the propeller according to the change of the temperature in real time, and can timely stop heating and start the hydraulic device when the steel bars are heated to be close to the melting point of the steel bars, and on the other hand, the welding quality of the steel bars can be further ensured and improved by monitoring the change of the current and the voltage. The invention also provides a steel bar spiral heating welding method, the heating temperature of the steel bar is controlled within the range of 1250 ℃ to 1400 ℃ in the welding process, when the olive shape at the welding joint is observed, the heating is stopped, and the redundant steel bar is extruded out of the hydraulic pipe tongs by adopting a hydraulic pump.
A reinforcing bar spiral heat welding apparatus and a welding method thereof according to the present invention are described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the apparatus and method for heat welding a reinforcing bar coil set forth above without departing from the spirit of the invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.
Claims (8)
1. The utility model provides a reinforcing bar spiral adds heat-welding set which characterized in that, the device includes:
the two propellers are oppositely arranged, one side of each propeller, which faces the other propeller, is provided with a guide steel pipe, the pipe orifice of each guide steel pipe corresponds to the pipe orifice of the propeller, the propeller comprises a propulsion controller, and when the propulsion controller is opened, the two propellers move relatively;
the electric heater is arranged between the two oppositely arranged propellers and comprises a high-frequency coil, an insulating and heat-insulating layer is wrapped outside the high-frequency coil, the two steel bars to be welded extend out of the guide steel pipe and then extend into the high-frequency coil, the two steel bars to be welded are close to each other in the high-frequency coil, a gap is formed at the close position and is defined as a welding head, when the electric heater works, a magnetic field is formed between the high-frequency coil and the inner part of the high-frequency coil under the action of alternating current after the high-frequency coil is electrified, the alternating magnetic field enables the steel bars to be welded in the high-frequency coil to cut alternating magnetic lines, alternating eddy currents are formed in the steel bars, the eddy currents enable the steel bars to generate heat, when the heating temperature is close to the melting point of the steel bars, the propeller is started to;
the hydraulic device is arranged between the propeller and the power-on heater, the hydraulic device comprises a hydraulic pipe wrench and a hydraulic pump, the inner cavity thread or the longitudinal rib of the hydraulic pipe wrench is consistent with the outer convex thread or the longitudinal rib of the steel bar to be welded, the inner cavity of the hydraulic pipe wrench is in the same diameter with the steel bar to be welded, the hydraulic pipe wrench comprises two combined type clamping pieces, the hydraulic pipe wrench is suitable for the steel bars of different types by replacing different clamping pieces, the hydraulic pump is started, the hydraulic pipe wrench extrudes the steel bar to be welded to enable the two steel bar parts to be mutually extruded, the redundant steel bar is extruded out of the hydraulic pipe wrench, the hydraulic pump returns oil, the steel bar is loosened, the joint part is quenched, and the welding work is completed.
2. A reinforcing bar spiral heat welding apparatus as defined in claim 1, including a fine adjustment control on said pusher for adjusting the position of the reinforcing bar on said pusher.
3. A spiral reinforcement welding apparatus as set forth in claim 1, wherein a reinforcement holder for fixing the reinforcement in said pusher so as not to be displaced accompanying the relative movement of said pusher is provided on said guide steel pipe.
4. The rebar spiral heat welding apparatus of claim 1, further comprising a voltmeter, an ammeter, and a thermometer for recording current, voltage, and current temperature of the energized heater during welding.
5. A reinforcing bar spiral heat welding method by the reinforcing bar spiral heat welding device according to any one of claims 1 to 4, characterized by comprising the steps of:
s1, inserting the two steel bars to be welded into the electric heater from the thrusters on the two sides respectively, sequentially penetrating the two steel bars to be welded through the thrusters and the guide steel pipe, and finally enabling the heads of the two steel bars to be welded to extend into the electric heater, wherein the electric heater comprises a high-frequency coil, the outer side of the high-frequency coil is wrapped with an insulating and heat-insulating layer, the two steel bars to be welded extend into the high-frequency coil after extending out of the guide steel pipe, the two steel bars are close to each other in the high-frequency coil, a gap is formed at the close position, and the gap;
s2, enabling the electrified heater to work, starting the propellers when the temperature is heated to a preset temperature, enabling the two propellers to move relatively until the joint of the two steel bars to be welded is extruded to form an olive shape, and then closing the propellers;
s3, adjusting the position of the steel bar through the propeller to move the joint of the steel bar to be welded into a hydraulic device, wherein the hydraulic device comprises a hydraulic pipe wrench and a hydraulic pump, the thread or the longitudinal rib of the inner cavity of the hydraulic pipe wrench is consistent with the outer convex thread or the longitudinal rib of the steel bar to be welded, and the diameter of the inner cavity of the hydraulic pipe wrench is the same as that of the steel bar to be welded, so that redundant steel bars at the joint are extruded out of the hydraulic device;
s4, starting a hydraulic pump to make a hydraulic pipe wrench extrude the steel bars to be welded to make two steel bars extrude each other, extruding redundant steel bars out of the hydraulic pipe wrench, finally returning oil by the hydraulic pump, loosening the steel bars, quenching the steel bar joint, completing welding,
wherein, including two box-like clamping pieces in the hydraulic pressure breakout tongs, be applicable to the reinforcing bar of different grade type through changing different clamping pieces.
6. The reinforcing bar helical heating welding method of claim 5, wherein in the step S1, the fine tuning controller is adjusted so that the two reinforcing bars to be welded are coaxially positioned, and then the two reinforcing bars to be welded are fixed by the reinforcing bar jigs.
7. The spiral heating welding method of a reinforcing bar as set forth in claim 5, wherein the preset temperature is in the range of 1250 ℃ to 1400 ℃ in the step S2.
8. The reinforcing bar spiral heat welding method as set forth in claim 5, wherein in said step S3, the current, voltage and temperature of the electric heater during welding are recorded by an ammeter, a voltmeter and a thermometer, and a current-voltage curve and a temperature-time curve are generated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810076929.0A CN108500440B (en) | 2018-01-26 | 2018-01-26 | Steel bar spiral heating welding device and welding method thereof |
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| CN201810076929.0A CN108500440B (en) | 2018-01-26 | 2018-01-26 | Steel bar spiral heating welding device and welding method thereof |
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| CN108500440A CN108500440A (en) | 2018-09-07 |
| CN108500440B true CN108500440B (en) | 2020-10-09 |
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| JPH10175080A (en) * | 1996-12-13 | 1998-06-30 | Yasuo Shirokura | Method for joining bar-shaped body |
| CN101264534A (en) * | 2008-04-09 | 2008-09-17 | 南京航空航天大学 | Method for processing screw thread by digital control lathes and screw thread processing tool thereby |
| CN201211595Y (en) * | 2008-07-08 | 2009-03-25 | 陈炯 | Steel induction heating solid-phase welding butt welding machine tool |
| CN103495800A (en) * | 2013-09-29 | 2014-01-08 | 常州市瑞泰工程机械有限公司 | Steel rail induction butt welding and heat treatment device |
-
2018
- 2018-01-26 CN CN201810076929.0A patent/CN108500440B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10175080A (en) * | 1996-12-13 | 1998-06-30 | Yasuo Shirokura | Method for joining bar-shaped body |
| CN101264534A (en) * | 2008-04-09 | 2008-09-17 | 南京航空航天大学 | Method for processing screw thread by digital control lathes and screw thread processing tool thereby |
| CN201211595Y (en) * | 2008-07-08 | 2009-03-25 | 陈炯 | Steel induction heating solid-phase welding butt welding machine tool |
| CN103495800A (en) * | 2013-09-29 | 2014-01-08 | 常州市瑞泰工程机械有限公司 | Steel rail induction butt welding and heat treatment device |
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| CN108500440A (en) | 2018-09-07 |
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