CN104125871A - Manufacturing method for rolling plate hollow roller, rolling plate hollow roller and steel sheet manufacturing technology device - Google Patents

Manufacturing method for rolling plate hollow roller, rolling plate hollow roller and steel sheet manufacturing technology device Download PDF

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Publication number
CN104125871A
CN104125871A CN201480000371.8A CN201480000371A CN104125871A CN 104125871 A CN104125871 A CN 104125871A CN 201480000371 A CN201480000371 A CN 201480000371A CN 104125871 A CN104125871 A CN 104125871A
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CN
China
Prior art keywords
welding
hollow cylinder
face
roll bending
metallic plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201480000371.8A
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Chinese (zh)
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CN104125871B (en
Inventor
池田博之
末盛秀昭
甲斐洋一
吉尾史朗
橘高和久
山口孝幸
会田孝幸
藤原裕太
星本达也
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Co., Ltd of general sharp special metallurgical technology Japan
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Mitsubishi Hitachi Metals Machinery Inc
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Publication of CN104125871A publication Critical patent/CN104125871A/en
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Classifications

    • 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
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • B23K33/004—Filling of continuous seams
    • B23K33/006—Filling of continuous seams for cylindrical workpieces
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/26—Seam welding of rectilinear seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0869—Devices involving movement of the laser head in at least one axial direction
    • B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
    • B23K26/0884—Devices involving movement of the laser head in at least one axial direction in at least two axial directions in at least in three axial directions, e.g. manipulators, robots
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/10—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/26—Seam welding of rectilinear seams
    • B23K26/262—Seam welding of rectilinear seams of longitudinal seams of tubes
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
    • B23K37/0229—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track the guide member being situated alongside the workpiece
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/06—Tubes
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Robotics (AREA)
  • Laser Beam Processing (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

A metal plate is bent to form a cylindrical rolling plate. With point welding on the side surface of an abuttged part (1), temporary fixing welding is performed to an abutted left end surface (2a) of the metal plate (12) and an abuttged right end surface (2b); a groove is arranged on the internal periphery of two abutted end parts; abutted conduction is performed to the abutted part (1) to form even intervals between two end surfaces; with a pushing bolt on a C-shaped fixing clamp via a device, the external peripheral surface of the metal plate (12) is pushed to maintain a state that the gap is narrowing; laser welding is conducted to the abutted part (1) via a laser welding device (6a); with high heat input welding of welding material, the abutted part (1) is abutted, so the cylindrical metal plate (12) after bending forms into a cylindrical shape. Rolling plate hollow cylinder can be manufactured with high efficient and low cost; with full development of production capacity of the device, transfer print of the roller surface to the moved steel plate is removed; and the steel plate with high surface quality can be conveyed.

Description

The manufacture method of roll bending hollow cylinder, roll bending hollow cylinder and steel plate manufacturing process device
Technical field
The present invention relates to manufacture method, roll bending hollow cylinder and the steel plate manufacturing process device of roll bending hollow cylinder, can in the steel plate conveyance operation of steel plate manufacturing process, to maintain higher the state of surface of steel plate quality, carry out conveyance, and can cut down the manufacturing cost of this hollow cylinder.
Background technology
In steel plate manufacturing process, for conveyance steel plate, used a large amount of conveyance cylinders.
Wherein, for the relatively large cylinder of diameter, take cost cutting as object, be more suitable for hollow cylinder but not solid cylinder, wherein, hollow cylinder forms drum by the crooked also welding of plate.
Be accompanied by the High Level demand to surface of steel plate quality, in manufacturing process, must carry out conveyance to maintain higher the state of surface of steel plate quality.
In the past, because the load such as the continuous of the steel plate from conveyance or friction cause cylinder surface shape to change, the situation that exists surface-treated layer to produce be full of cracks or peel off, causes the surface quality of the steel plate of conveyance to reduce thereby this shape is transferred on steel plate.Therefore, need to improve the variation that the case hardness of hollow cylinder alleviates surface configuration.
Therefore, taked take inferior countermeasure: for example use carbon equivalent as 0.45% with first-class harder high-carbon steel, but also improve case hardness by applying the heat treatments such as quenching.
But, cylinder mother metal at the high-carbon steel to such forms hollow cylinder in the situation that use welding material to weld end face on the basis of rolling machining, owing to there being the possibility of the defects such as the part that causes being subject to heat affecting because of this welding cracks, so need to carry out the pre-heat treatment or after-baking etc.
Thus, usually, for the object that prevents weld crack, and in order to suppress quench hardening, welding material is to add the composition that has low-alloy composition and deoxidation composition.Therefore, use the hardness of the weld part of welding material to have the tendency lower than cylinder mother metal, in manufacture conveyance, by the needed roughness of cylinder, given in technique, be difficult to give equably cylinder surface roughness.
For example, if use welding material, in the surface roughness of carrying out based on compressed air shotblasting machine, give in operation, shot-peening is trapped in sealing wire portion deeper, has produced larger roughness.The comparatively coarse cylinder surface roughness of this sealing wire portion may be transferred on steel plate.Especially, in having implemented the senior surface treated steel plate of zinc-plated grade, this transfer printing shows significantly, also becomes the underproof reason of product.
And, for fear of the transfer printing of this sealing wire, there is the tendency that the tension force of steel plate is set lowlyer, therefore also become that steel plate crawls or the reason of slippage.That is to say, cannot give full play to the production capacity of equipment, produced the problem that yield rate reduces.
Therefore, in the past, provide a kind of for seeking the manufacture method of the case hardness homogenising of roll bending hollow cylinder, for example, patent documentation 1 to 4 discloses the method.
In the method for recording at patent documentation 1, do not use welding material, but cylinder mother metal self is carried out to melting by electron beam etc., engage to make cylinder.
In addition, in the method for recording at patent documentation 2, by diffusion bonding method, make cylinder mother metal end joined make cylinder.
In addition, in the method for recording, use welding material at patent documentation 3, after the joint of cylinder mother metal end face, the boundary line part of cylinder mother metal and welding material is all cut as groove shape, then, the groove that this is cut is landfill again.
And, in the method for recording at patent documentation 4, first by high heat inputs such as submerged-arc weldings, weld to engage, then, in order to eliminate the heat affected zone producing based on high heat input welding, in the outer peripheral face side of weld part and its periphery, by gouge etc., excavate, then by low_input_powers such as plasma arc welding (PAW)s, weld landfill again.
Prior art document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 3-169412 communique
Patent documentation 2: Japanese kokai publication hei 9-300084 communique
Patent documentation 3: TOHKEMY 2003-145207 communique
Patent documentation 4: TOHKEMY 2000-140912 communique
Summary of the invention
In the method for recording at above-mentioned patent documentation 1, need to flat pattern portion be corrected into again just roundly after welding, need extra time and cost.
In addition, in order to carry out electron beam welding, need in large-scale ultrahigh vacuum equipment, carry out operation, have also poor problem of expensive and workability.
And, although want not crooked near formation makes the both ends of plate and remain under the state of flat pattern of flat jointing end face is docked abreast, but, simultaneously illustrated in patent documentation 4, there is following problem: even weld based on laser beam, under the formation state of the endface position obtaining like this, be also difficult to guarantee for perpendicularity, linearity and the end face depth of parallelism each other the high-precision mated condition of solder side.In addition, need to solve the above-mentioned just round problem of again correcting into.
And, suppose the machining of the row metal end face in the situation that the rolling machining of metallic plate advances, also the strain producing in the time of can be due to rolling machining causes the merging precision of the docking section of metallic plate to reduce, the needed merging precision of laser weld guarantee to become very difficult, the welding of carrying out based on laser weld become difficulty.
In addition, the method that patent documentation 2 is recorded is carried out diffusion bonding by sandwiched insert material between docking end face.But this joint method is difficult to control defect, and in order to prevent the formation of the field trashes such as oxide, need to tackle and engage the control of atmosphere and be engaged cleaning of face etc. highly difficultly.And the homogenising of the tissue of insert material and cylinder mother metal is not easy to realize, and remains discontinuity in the material structure after joint.
And the method that patent documentation 3 is recorded engages with welding material, the first precipitates such as ferrite of analysing that produce are cut into grooving shape, and weld with weld metal and carry out backfill by low_input_power on the boundary line at cylinder mother metal and welding material.But, in the method, after engaging operation, also need grinding operation and heavily bury the operations such as operation, deposit need in the mill the time, shortcoming that cost is high.
And, in the method for recording at patent documentation 4, the method of recording with patent documentation 3 similarly, with welding material, engage, by the precipitate part occurring on the outer surface of cylinder and heat affected zone all cut into, and weld with weld metal and again will cut the backfill into portion by low_input_power.Therefore, there is following shortcoming: larger than the grinding of patent documentation 3, backfill scope, need more operation and time, cost is higher.
The present invention is used for solving above-mentioned technical task, its object is to provide a kind of manufacture method, roll bending hollow cylinder and steel plate manufacturing process device of roll bending hollow cylinder, this manufacture method is for efficiently and at low cost manufacturing roll bending hollow cylinder, this roll bending hollow cylinder is under the state of production capacity of having given full play to equipment, eliminate the transfer printing of cylinder surface shape to the steel plate of conveyance, can carry out the conveyance of the steel plate of high surface quality.
In addition, the in the situation that of applicable laser weld, the merging precision of its interface is very important, especially, the in the situation that of slab, in order to ensure the merging precision of whole of interface, need to spend some time.The present invention has also solved this technical task.
To achieve these goals, the 1st invention is a kind of manufacture method of roll bending hollow cylinder, it is characterized in that, after having implemented that the metallic plate of rectangle is bent to rolling machining cylindraceous, the end face that makes to bend to the both ends of above-mentioned metallic plate cylindraceous becomes mated condition; Under this state, the inner circumferential side at the both ends of this docking is implemented groove processing and formed groove processing department; The end face of the outer circumferential side at the both ends of above-mentioned docking is implemented machining and made above-mentioned end face become level and smooth; Then, from outer circumferential side, to bending to above-mentioned metallic plate cylindraceous, apply pushing force, become the state of the space loss between the end face that makes above-mentioned both ends; Under this state, between the end face at above-mentioned both ends, by laser beam, the above-mentioned both ends of above-mentioned metallic plate are not welded sandwiched welding material; Then, use welding material to implement welding to the groove processing department of above-mentioned inner circumferential side, make to bend to above-mentioned metallic plate cylindraceous and form drum.
In addition, the 2nd invention is, in the 1st invention, at the end face to the outer circumferential side at the both ends of above-mentioned docking, to implement, in the operation of machining, to be formed with whole parallel interval of end face between the end face at above-mentioned both ends.
In addition, the 3rd invention is, in the 1st invention, at the end face to the outer circumferential side at the both ends of above-mentioned docking, implement in the operation of machining, with when becoming the state of the space loss between the end face that makes to be formed at above-mentioned both ends, whole the parallel mode of end face at above-mentioned both ends, makes the end face at the both ends of above-mentioned docking form the open taper of outer circumferential side.
In addition, the 4th invention is, in the arbitrary invention in the 1st～3rd invention, with arm humanoid robot, to carry out the welding based on above-mentioned laser beam and use the welding of above-mentioned welding material.
In addition, the 5th invention is, in arbitrary invention in the 1st～3rd invention, in the operation of using welding material to implement to weld to the groove processing department of above-mentioned inner circumferential side, in above-mentioned groove processing department, carry out low_input_power and weld to form the 1st weld layer, on above-mentioned the 1st weld layer, by comparing with above-mentioned low_input_power welding the high heat input that heat input is large, weld to form the 2nd weld layer, thus, in above-mentioned groove processing department, form the weld part of double-layer structural.
In addition, the 6th invention is, from outer circumferential side to bending to metallic plate cylindraceous and applying pushing force and become the operation of state of the space loss between the end face that makes above-mentioned both ends, the stationary fixture that use has pushing member pushes bending to above-mentioned metallic plate cylindraceous from outer circumferential side, thereby becomes the state of the space loss between the end face that makes above-mentioned both ends.
And the 7th invention is to utilize arbitrary invention in the 1st～6th invention and the roll bending hollow cylinder made.
In addition, the 8th invention is the steel plate manufacturing process device that has used the roll bending hollow cylinder that utilizes the arbitrary invention in the 1st～6th invention and make.
Invention effect
According to the 1st invention of the present invention, by its both ends of the surface being carried out to machining after rolling machining, avoided the such just round correction process of existing method, and can when the docking of welding end surface, with very high degree of precision, dock.Thus, can by high-precision Laser Welding fetch realization in the past difficulty, do not need as the direct welding welding material of the reason of difference of hardness, between cylinder mother metal.
In addition, inner surface side in docking section reserves the height of laser beam butt welding portion that outer surface can not be subject to the degree of heat affecting, in advance groove processing is implemented in both ends on this basis, and to the applicable general high heat input welding of having used welding material of this groove processing department, thus, compare with the method for only welding to engage by low_input_power, can shorten weld interval significantly.For example, as low_input_power, weld, in the situation that welding by MIG or groove processing department is carried out to built-up welding welding in MAG welding, need to carry out the welding of about 30 times in built-up welding place of groove processing department, in contrast, in the situation that the submerged arc welding method of high heat input welding, welding times is about built-up welding that just can complete groove processing department for 10 times, therefore, can shorten the engineering time, can seek the cost cutting of accompanying with it simultaneously.And, by groove, process and realized following advantage: can on whole interface, in thickness of slab direction, guarantee high merging precision, more applicable laser weld.
Therefore, do not need above-mentioned prior art such, due to the poor impact of case hardness need to the cutting process of welding portion and this part heavily buried to operation etc., and by laser weld, do not realize high-precision mother metal melting sandwiched welding material and engage, thus, can be efficiently and manufacture at low cost roll bending hollow cylinder, this roll bending hollow cylinder can not generate the inhomogeneous part of roughness after final surface treatment, eliminated the transfer printing of cylinder surface shape to steel plate, under the state of production capacity of having given full play to equipment, can under the state of surface quality that maintains steel plate compared with highland, carry out conveyance.
In addition, according to the 2nd invention of the present invention, obtain the effect identical with above-mentioned the 1st invention.
In addition, according to the 3rd invention of the present invention, when the machining of docking section, form the open taper of outer circumferential side, thereby when pushing, become the parastate of very high degree of precision, therefore, the tight conjugation grade of two end faces in the time of can improving space loss, can make the merging precision of welding end surface further improve.
And, according to the 4th invention of the present invention, by use arm humanoid robot in laser weld, can automatically carry out material according to plate, thickness of slab, rotary drum radial etc. and that need to adjust at any time and distance cylinder surface, the incident angle of Laser Welding head, feed speed, the isoparametric change of laser intensity, the reduction of the operation high efficiency that can seek to bring based on time shorten and the manufacturing expense accompanying with it.
In addition, according to the 5th invention of the present invention, in order further to have alleviated heat affecting of outer surface of cylinder etc., in to the welding of this inner peripheral surface side direction groove processing department, as following structure, form welding, first sandwich the 1st layer of low_input_power welding, based on high heat input welding the 2nd layer is set thereon, thus, the heat affecting to cylinder outer peripheral face due to high heat input welding can be further alleviated, the further reduction of cylinder surface difference of hardness can be realized.
And, according to the 6th invention of the present invention, the merging precision of the docking end face of the metallic plate in the time of can guaranteeing laser weld compared with highland.
In addition, according to the invention described above, can be efficiently and manufacture at low cost roll bending hollow cylinder, this roll bending hollow cylinder has been eliminated owing to being folded with the transfer printing of the cylinder surface shape of the inhomogeneous part of roughness that the existence of the sealing wire of welding material causes to steel plate, can under the state of surface quality that maintains steel plate compared with highland, carry out conveyance.
Thus, do not worry transfer printing, can give sufficient production line tension force, in senior surface treated steel plate, can realize the operation running of having given full play to equipment capacity, and can expect the raising of finished product rate.
Therefore, according to the 7th invention of the present invention and the 8th invention, maintenance cost when can cut down the manufacturing cost of nonexpondable conveyance cylinder in the manufacturing process of steel plate and need to change etc., and can maintain higher the surface quality of the steel plate of producing, therefore can be used in valuably Iron industry etc.
Accompanying drawing explanation
Fig. 1 is the key diagram of the inner circumferential side groove manufacturing procedure of the docking section in the embodiment 1 of manufacture method of roll bending hollow cylinder of the present invention.
Fig. 2 is the key diagram of the machining operation of the docking section in the embodiment 1 of manufacture method of roll bending hollow cylinder of the present invention.
Fig. 3 is the key diagram of the laser weld operation of carrying out based on C type stationary fixture in the embodiment 1 of manufacture method of roll bending hollow cylinder of the present invention.
Fig. 4 is the key diagram of the welding sequence of the groove part in the embodiment 1 of manufacture method of roll bending hollow cylinder of the present invention.
Fig. 5 is the key diagram of the laser weld operation of carrying out based on ring-like stationary fixture in embodiment 1 grade of manufacture method of roll bending hollow cylinder of the present invention.
Fig. 6 is the key diagram of the machining operation of the taper in the embodiment 2 of manufacture method of roll bending hollow cylinder of the present invention.
Fig. 7 is the key diagram of the datum mark of the coning angle in the embodiment 2 of manufacture method of roll bending hollow cylinder of the present invention.
Fig. 8 is the key diagram of the laser weld operation of carrying out based on arm humanoid robot in the embodiment 3 of manufacture method of roll bending hollow cylinder of the present invention.
Fig. 9 is the key diagram of the double-layer structural welding sequence carrying out based on ring-like stationary fixture in the embodiment 4 of manufacture method of roll bending hollow cylinder of the present invention.
Figure 10 is the amplification general profile chart of dual-layer welding structure of the inner circumferential side of the roll bending hollow cylinder in the embodiment 4 of manufacture method of roll bending hollow cylinder of the present invention.
Figure 11 means the figure of an example of the steel plate manufacturing process device that has been suitable for roll bending hollow cylinder of the present invention.
The specific embodiment
Below, use accompanying drawing, the embodiment of the manufacture method of roll bending hollow cylinder of the present invention, roll bending hollow cylinder and steel plate manufacturing process device is described.
< the 1st embodiment >
Use Fig. 1 to Fig. 5 to describe the 1st embodiment of the manufacture method of roll bending hollow cylinder of the present invention.
First, carry out the metallic plate of rectangle to bend to rolling machining cylindraceous.
This metallic plate, except carbon steel, can also be used stainless steel, hardenability or wearability have been carried out to the chromium steel of strengthening or chrome-molybdenum steel etc.
In addition, the method for rolling machining is so long as known method.
Then, will implement the docking left side 2a of metallic plate cylindraceous 12 of this rolling machining and docking right side 2b on the docking section 1 of metallic plate 12, preferably 1 side is implemented spot welding etc. and carried out temporary fixed welding in docking section, thereby become mated condition.
Then, as shown in Figure 1, by thering is the machinery processing apparatus 3c etc. of the inner surface groove processing use of slotting cutter, the inner peripheral surface side of the docking left side 2a after temporary fixed welding and docking right side 2b is carried out to groove processing, thereby form inner circumferential side groove processing department 9.
The shape of the inner circumferential side groove processing department 9 forming in this groove processing is not limited to the groove shape of V word as shown in Figure 1, can be also other similar shapes such as U word shape.
In addition figure 1 illustrates, the key diagram of groove manufacturing procedure.
Then, under this mated condition, with respect to from docking section 1 towards the vertical face of the line of centre of the drum, location processing (datum level) cutting of carrying out cutting the minimal thickness of removing outer surface within the scope of axial whole of metallic plate 12 cylindraceous.
Then, as shown in Figure 2, by having the machinery processing apparatus 3a of the slotting cutter 3a1 of rectilinear form, involutory processing is implemented in the docking section 1 from the internal all side slope mouth processing of outer peripheral face side, forms the uniform gap that interval is approximately 10mm.In addition, Fig. 2 is the key diagram of the machining operation of docking section 1.
In addition the involutory processing of based on this machinery processing apparatus, the docking section 1 of metallic plate 12 being carried out, is not limited to the machining based on slotting cutter.Except slotting cutter, such as can enumerate based on emery wheel cylindraceous, docking left side 2a and docking right side 2b are carried out, the method such as grinding when both ends of the surface.
In addition, in the present invention, involutory processing refers to carries out the manufacturing procedure of machining processes to forming docking left side 2a and the docking right side 2b of the docking section 1 of metallic plate 12 simultaneously.
And this machining operation is preferably the involutory processing of above-mentioned docking section 1 being carried out based on slotting cutter, but for example, also can be under the state of both ends of the surface docking that keeps making metallic plate 12 by slotting cutter etc., successively each end face be carried out to machining.
Then, prepare C type stationary fixture 7.
This C type stationary fixture 7 upwards has the framework 5e of a plurality of C type shapes at drum shaft, the framework 5e of this C type shape has the pushing bolt engaging with threaded 5d spiral of cutting (two couples of top pushing bolt 5a, two counter-lateral quadrents pushing bolt 5b, two couples of bottom pushing bolt 5c) as shown in Figure 3.
Then, the plurality of framework 5e is disposed to axial a plurality of positions of having carried out the metallic plate 12 after involutory processing in machining operation before, pushing bolt 5a, 5b, 5c by each framework 5e push bending to the outer peripheral face side of metallic plate 12 cylindraceous, thus, docking forms docking section 1 with docking right side 2b by pushing, to make to dock left side 2a, and keeps the state of space loss.
Based on this pushing make the gap of docking section 1 be 0.8mm following, more preferably by space loss to the state below 0.5mm, thereby adjust as far as possible close to 0.
In addition, Fig. 3 is the key diagram of the subsequent processing laser weld operation while being fixed by C type stationary fixture 7.
Then, at six of the C type stationary fixture 7 by above-mentioned pushing bolts (5a, 5b, 5c), apply under the state that pushing keeps, by laser soldering device 6a, laser weld is carried out in docking section 1, thereby docking section 1 is engaged.
Then, as shown in Figure 4, at the C type stationary fixture 7 by above-mentioned, apply to push under the state fixing and spin upside down, welding head 10 is imported in the groove processing department 9 of inner circumferential side, General welding connection by use welding materials such as submerged arc welding methods forms groove part weld part 11 and engages from inner circumferential side in groove processing department 9, thereby make to bend to metallic plate 12 cylindraceous, forms drum.
Then, after welding finishes, C type stationary fixture 7 is pulled down.
In addition, pushing bolt 5a in C type stationary fixture 7,5b, 5c are illustrated for amounting to the situation of six, but the quantity of pushing bolt is not limited to six, can be can from outer peripheral face side, the metallic plate 12 to involutory processing pushes equably any number.
In addition, the framework 5e of C type stationary fixture 7 is upwards illustrated for a plurality of situations at drum shaft, but framework 5e can be at drum shaft upwards for single.
At this, the stationary fixture using in order to keep metallic plate 12 is not limited to C type stationary fixture 7 as shown in Figure 3, can be also ring-like stationary fixture 4 as shown in Figure 5.As shown in Figure 5, this ring-like stationary fixture 4 upwards has the framework 5f of a plurality of annulars at drum shaft, and this annular framework 5f has pushing bolt (two couples of top pushing bolt 5a, two counter-lateral quadrents pushing bolt 5b, two couples of bottom pushing bolt 5c).In addition, Fig. 5 is the key diagram of the laser weld operation while being fixed by ring-like stationary fixture 4.
In this situation, to the inner surface side of docking section 1 having been carried out to the metallic plate 12 of machining, import the Laser Welding head 6b of laser soldering device 6, by laser beam, from inner surface side, docking section 1 is welded.
In addition, in Fig. 5, be downward welding direction, but also can make progress.
Pushing bolt 5a, 5b, 5c in this ring-like stationary fixture 4 are also not limited to six shown in Fig. 5, can be can from outer peripheral face side, the metallic plate 12 to involutory processing pushes equably any number.
In addition, the framework 5f of ring-like stationary fixture 4 is upwards illustrated for a plurality of situations at drum shaft, but framework 5f can be at drum shaft upwards for single.
Then, the metallic plate 13 of the drum after welding is carried out arbitrarily take the modified heat treatment as object of material.This heat treatment is so that the carbon of hardening element etc. evenly spread and release internal residual stresses is object, such as can enumerating normalizing, annealing, annealing-tempering or eliminating strain annealing etc.
Then, carry out arbitrarily the outer surface roughing of the metallic plate 13 of drum and/or the coarse regulation of rotary drum radial.
Then, implementing surperficial hardening heat processes.This surface hardening heat is processed and is mostly carried out so-called high-frequency quenching, carries out tempering after quenching, can access the cementation zone with toughness.
Then, in the two sides of the metallic plate 13 of drum, side plate and axle are installed.In addition, the installation of this side plate and axle also can be carried out before surperficial hardening heat is processed.
Then, implement the rotary drum radial fine finishining of the metallic plate 13 of drum.
Finally, the construction of the outermost roughness adjustment of cylinder surface of the metallic plate 13 of process drum and hard chrome plating etc., completes the roll bending hollow cylinder as final products.
According to the 1st embodiment of the manufacture method of above-mentioned roll bending hollow cylinder of the present invention, after rolling machining, in the inner surface side of docking section, implement the groove processing for both ends in advance, and by machining, involutory processing is carried out in docking section.Thus, even if for example use slab, also can make the end face that will weld dock with very high degree of precision, therefore, can realize joint difficulty, that carry out based on high-precision laser weld in the past.
Direct welding between the cylinder mother metal carrying out based on this laser beam can be achieved as follows welding: sealing wire can not become the layer of heterogeneity, and due to high-energy-density welding, heat affected zone is also less, and the hardness on surface is even.In addition, because the heat affected zone of sealing wire is less, so also can eliminate substantially the distortion of the drum after welding.Although temporarily found hardened layer on this sealing wire, can remove simply by the heat treatment of subsequent handling, cylinder mother metal and sealing wire become identical component, have obtained same rigidity in final products.
In addition, due to the method that does not need to record as patent documentation 1, by metallic plate to keep smooth mode to form under the state of special flat pattern by punch forming etc. near by both ends, jointing end face is welded fetching abreast, therefore, have the following advantages: after welding, do not need flat pattern portion again to correct into just round additional process.And, be achieved as follows advantage: do not need in large-scale ultrahigh vacuum equipment, to carry out operation as electron beam welding, also can not produce problem expensive and that workability is poor.
And, suppose the machining of the row metal end face in the situation that the rolling machining of metallic plate advances, also the strain producing in the time of can be due to rolling machining causes the merging precision of the docking section of metallic plate to reduce, the needed merging precision of laser weld guarantee to become very difficult, the welding of carrying out based on laser weld become difficulty.In contrast, in the 1st embodiment of the manufacture method of roll bending hollow cylinder of the present invention, by carry out machining after roll bending, can guarantee the needed merging precision of laser weld, can keep making by apply pushing force from outer circumferential side the state of the space loss between the end face at both ends to implement laser weld.
In addition, in docking section inner surface side, before laser weld, groove processing is implemented in both ends, this groove processing has reserved the height of the laser butt welding portion of the degree that makes outer surface can not be subject to heat affecting, the applicable high heat input of this groove processing department is welded to engage, thus, compare with the method for only welding to engage by low_input_power, can shorten weld interval significantly.For example, as low_input_power, weld, in the situation that welding by MIG or groove processing department is carried out to built-up welding welding in MAG welding, need to carry out the welding of about 30 times in built-up welding place of groove processing department, in contrast, in the situation that the submerged arc welding method of high heat input welding, welding times is about built-up welding that just can complete groove processing department for 10 times, therefore, can shorten the engineering time, can seek the cost cutting of accompanying with it simultaneously.
Therefore, suppressed near the distortion in time of cylinder surface weld part, can form cylinder surface does not have difference of hardness, impartial roughness, and can under the state of production capacity of having given full play to equipment, carry out conveyance.Thus, can be efficiently and manufacture at low cost roll bending hollow cylinder, this roll bending hollow cylinder can carry out can conveyance steel plate transfer printing, senior surface treated steel plate to conveyance by cylinder surface shape.
In addition, the above-mentioned involutory fixing means that adds the metallic plate 12 that has used temporary fixed welding man-hour is one of the method that can apply, so long as be not limited to the method to having implemented the method that the end position of the metallic plate 12 of rolling machining is fixed.
As other fixing means, for example, also above-mentioned C type stationary fixture 7 can be installed in the situation that not implementing temporary fixed welding, make, under the docking left side 2a of metallic plate 12 and the state of docking right side 2b docking, machining is carried out in docking section 1.In this situation, expectation also applies pushing from inner surface by mechanisms such as hydraulic jack as required and is fixed.
< the 2nd embodiment >
Use Fig. 6 and Fig. 7 to describe the 2nd embodiment of the manufacture method of roll bending hollow cylinder of the present invention.
First, similarly to Example 1, carry out the metallic plate of rectangle to bend to rolling machining cylindraceous.And, on the docking section 1 of metallic plate 12 cylindraceous, preferably 1 side is implemented spot welding etc. and carried out temporary fixed welding in docking section, thereby become mated condition.
Then, as shown in Figure 1, machinery processing apparatus 3c by having slotting cutter etc. carries out groove processing to the inner peripheral surface side of the docking section 1 after temporary fixed welding.
Then, use the machinery processing apparatus 3b of the slotting cutter 3b1 with taper as shown in Figure 6, involutory processing is implemented in the docking section 1 of metallic plate 12, thereby form the gap that interval is approximately the taper of 10mm.
At this, for example as shown in Figure 7, the angle θ of taper take will point 8 angle as benchmark and when the both ends of the surface (2a, 2b) of metallic plate 12 are open be radially benchmark, wherein, 8 be with respect to separate about 10mm interval metallic plate 12 both ends of the surface (2a, 2b) intermediate point and be positioned at the point of the metallic plate central portions 12 parts, thickness direction of the opposition side on circumferencial direction.
In addition, taper of the present invention is following shape: outer peripheral face side is compared more open with inner peripheral surface side, thereby while observing from vertical direction with respect to the central shaft of metallic plate 12 cylindraceous, when becoming the state of the space loss that makes both ends of the surface (2a, 2b), whole of both ends of the surface (2a, 2b) are parallel.
In addition, Fig. 6 is the key diagram of the machining operation of taper, and Fig. 7 is the key diagram of the datum mark of coning angle.
Then, similarly to Example 1, use is equipped in the pushing bolt (5a, 5b, 5c) on C type stationary fixture 7 as shown in Figure 3, and the outer peripheral face of the metallic plate 12 from rolling machining pushes, and the docking section 1 that makes to have carried out involutory processing by pushing becomes the state of space loss.And, at the C type stationary fixture 7 by above-mentioned, be fixed and apply under the state that keeps of pushing, by laser soldering device 6, docking section 1 is engaged.
Then, as shown in Figure 4, keeping applying pushing by C type stationary fixture 7, under fixing state, spin upside down, welding head 10 is imported to the inner circumferential side of the groove processing department 9 of inner circumferential side, the General welding connection by use welding materials such as submerged arc welding methods forms groove part weld part 11 and engages in groove processing department 9.
After welding finishes, above-mentioned C type stationary fixture 7 is pulled down.Stationary fixture can be also ring-like stationary fixture 4 similarly to Example 1.
In addition, similarly to Example 1, also can be as required from inner surface, using the basis of the mechanisms such as hydraulic jack that C type stationary fixture 7 or ring-like stationary fixture 4 are being installed, not implementing temporary fixed welding, making to carry out under the state of both ends of the surface (2a, 2b) docking of metallic plate 12 machining of docking section 1.
Then, to the metallic plate 13 of drum after welding carry out take the modified heat treatment arbitrarily as object of material, outer surface roughing arbitrarily, arbitrarily rotary drum radial coarse regulation, then carry out surperficial hardening heat processing.
Then, through the two sides of the metallic plate 13 of drum being installed to the construction of side plate and axle, rotary drum radial fine finishining, the outermost roughness adjustment of cylinder surface and hard chrome plating etc., complete the roll bending hollow cylinder as final products.
In the 2nd embodiment of the manufacture method of roll bending hollow cylinder of the present invention, also can access the effect roughly the same with the 1st embodiment of the manufacture method of above-mentioned roll bending hollow cylinder.
And, by making the end face after the involutory processing at both ends of metallic plate 12 of docking form the open taper of outer circumferential side, during the state of the space loss between the end face that becomes the both ends that make metallic plate 12, the whole end face at both ends is parallel, can when pushing, make docking section 1 form the parastate of very high degree of precision, the tight conjugation grade of the both ends of the surface of the metallic plate 12 in the time of can improving constriction gap, can seek the further raising of the merging precision of welding end surface.
In addition, the datum mark of the angle θ of taper is not limited to the point 8 of Fig. 7.In addition, can be than the outer surface of the metallic plate 12 shown in Fig. 7, to be positioned at the arbitrfary point of inner circumferential side, more preferably, be contemplated to be by carry out on the intermediate point of both ends of the surface of taper processing and line segment that the central link of the metallic plate after rolling machining 12 is got up, considered the thickness of slab of metallic plate 12 and the arbitrfary point of diameter.
< the 3rd embodiment >
Use Fig. 8 to describe the 3rd embodiment of the manufacture method of roll bending hollow cylinder of the present invention.
Fig. 8 is the key diagram of the laser weld operation of carrying out based on arm humanoid robot.
First, with embodiment 1 grade similarly, carry out the metallic plate of rectangle to bend to rolling machining cylindraceous.And, on the docking section 1 of metallic plate 12 cylindraceous, preferably 1 side is implemented spot welding etc. and carried out temporary fixed welding in docking section, thereby become mated condition.
Then, as shown in Figure 1, machinery processing apparatus 3c by having slotting cutter etc. carries out groove processing to the inner peripheral surface side of the docking section 1 after temporary fixed welding.
And, use the machinery processing apparatus with the slotting cutter 3a1 of rectilinear form or the slotting cutter 3b1 of taper, involutory processing is implemented in the docking section 1 of metallic plate 12, thereby form the gap that interval is approximately the even or taper of 10mm.
Then, with embodiment 1 grade similarly, use is equipped in C type stationary fixture 7 as shown in Figure 3 or the pushing bolt (5a, 5b, 5c) on ring-like stationary fixture 4 as shown in Figure 5, the outer peripheral face of the metallic plate 12 from rolling machining pushes, and the docking section 1 that makes to have carried out involutory processing by pushing keeps the state of space loss.Make under the state of this space loss, by laser soldering device 6, docking section 1 is engaged.
Now, as shown in Figure 8, use arm humanoid robot 6 to carry out laser weld.
In this situation, first, at the head end equipment Laser Welding head 6a of the arm 6c of robot of arm humanoid robot 6, the setting of the necessary setting value correspondingly in advance studying well with the various welding conditions (material of plate, thickness of slab, rotary drum radial etc.) of metallic plate 12 as cylinder mother metal (such as the incident angle of the distance with cylinder surface, Laser Welding head, feed speed, laser intensity etc.).Then, the arm that has above-mentioned Laser Welding head 6a in head end equipment is imported to the outer surface side of metallic plate 12 or the inner surface side of metallic plate 12, carry out laser weld.
Be desirably in while welding from the outer surface of metallic plate 12, use the C type stationary fixture 7 shown in Fig. 3, when the inner surface from metallic plate 12 welds, use the ring-like stationary fixture 4 shown in Fig. 5.
Then, as shown in Figure 4, keeping applying pushing by C type stationary fixture 7, under fixing state, spin upside down, in the groove processing department 9 of inner circumferential side, the General welding connection by use welding materials such as submerged arc welding methods forms groove part weld part 11 from inner circumferential side in groove processing department 9 and engages.
After welding finishes, above-mentioned C type stationary fixture 7 is pulled down.
Then, the metallic plate 13 to the drum after welding, carries out take material modified a heat treatment arbitrarily, outer surface roughing arbitrarily, the coarse regulation of rotary drum radial arbitrarily as object, then carries out surperficial hardening heat processing.
Then, through the two sides of the metallic plate 13 of drum being installed to the construction of side plate and axle, rotary drum radial fine finishining, the outermost roughness adjustment of cylinder surface and hard chrome plating etc., complete the roll bending hollow cylinder as final products.
In the 3rd embodiment of the manufacture method of roll bending hollow cylinder of the present invention, also can access the effect roughly the same with the 1st embodiment of the manufacture method of above-mentioned roll bending hollow cylinder.
And, by use arm humanoid robot in laser weld, material according to plate, thickness of slab, rotary drum radial etc. can be automatically carried out and that need to adjust at any time and distance cylinder surface, the incident angle of Laser Welding head, feed speed, the isoparametric change of laser intensity, high efficiency, the time shorten of operation can be sought and the reduction of the manufacturing expense that accompanies with it.
< the 4th embodiment >
Use Fig. 9 and Figure 10 to describe the 4th embodiment of the manufacture method of roll bending hollow cylinder of the present invention.
First, similarly to Example 1, carry out the metallic plate of rectangle to bend to rolling machining cylindraceous.And, on the docking section 1 of metallic plate 12 cylindraceous, preferably 1 side is implemented spot welding etc. and carried out temporary fixed welding in docking section, thereby become mated condition.
Then, as shown in Figure 1, machinery processing apparatus 3c by having slotting cutter etc. carries out groove processing to the inner peripheral surface side of the docking section 1 after temporary fixed welding.
And, use the machinery processing apparatus with the slotting cutter 3a1 of rectilinear form or the slotting cutter 3b1 of taper, involutory processing (approximately 10mm interval) is implemented in the docking section 1 of metallic plate 12, form the gap that interval is approximately the even or taper of 10mm.
Then, with embodiment 1 grade similarly, use is equipped in C type stationary fixture 7 as shown in Figure 3 or the pushing bolt (5a, 5b, 5c) on ring-like stationary fixture 4 as shown in Figure 5, the outer peripheral face of the metallic plate 12 from rolling machining pushes, and the docking section 1 that makes to have carried out involutory processing by pushing keeps the state of space loss.Make under the state of this space loss, by laser soldering device 6, docking section 1 is engaged.
Then, as shown in Figure 9, keeping applying pushing by ring-like stationary fixture 4, under fixing state, spin upside down, in groove processing department 9, by using the low_input_power of welding material to weld (such as MAG welding, MIG welding, the electron beam welding connection of using welding material, the method for laser welding that uses welding material, plasma transferred arc built-up welding (plasma transferred arc welding) method etc.), from inner circumferential side, carry out built-up welding welding, thus formation the 1st weld layer 11a.
In the built-up welding welding that forms the 1st weld layer 11a, owing to having used the welding material of the low-carbon (LC) amount that quench hardening is less, so for the impact of bringing the dilution (diffusion) of the carbon amount producing with the fusion of the welding material of low-carbon (LC) amount based on docking section 1 to the docking section 1 shown in Figure 10 is limited to Min., use the low heat input weldings such as above-mentioned MAG welding, MIG welding.At this, the welding material of the 1st weld layer 11a is in a ratio of low-carbon (LC) amount with mother metal as mentioned above, when increasing to mother metal and becoming the fusion penetration of docking section 1 of hardened layer, the possibility that exists the dilution (diffusion) because producing based on fusion to cause case depth to reduce, therefore, it is the condition (for example, 2～3 built-up welding welding is carried out in welding based on low_input_power) of about 2mm of the possibility that does not have lack of fusion (internal flaw) that the fusion penetration to mother metal is suppressed to that expectation makes welding condition.
And; upside (inner circumferential side of the metallic plate 13 of drum) at the 1st weld layer 11a; by the high heat input welding (such as submerged arc welding method, carbon dioxide gas arc welding method, electroslag welding method etc.) of having used welding when forming the 1st weld layer 11a to compare the welding material that heat input is large, carry out built-up welding welding, thereby form the 2nd weld layer 11b.
In the built-up welding welding that forms the 2nd weld layer 11b, weld similarly with the built-up welding that forms the 1st weld layer 11a, use the welding material of the low-carbon (LC) amount that quench hardening is less.In the high heat input welding of the 2nd weld layer 11b, because the 1st weld layer 11a has played the effect of cushion, so even if make the 2nd weld layer 11b and the 1st weld layer 11a melting welding, also can access the effect that alleviates the impact bringing to docking section 1.
Like this, in groove processing department 9, formed the 1st weld layer 11a and the 2nd weld layer 11b as shown in Figure 10, wherein, the 1st weld layer 11a is by having been used the low_input_power welding of welding material to be formed on the inner peripheral surface side of metallic plate 13, and the 2nd weld layer 11b is by having been used the high heat input welding of welding material to form.
In addition, in this groove processing department 9, form the groove part weld part 11 formed by the 1st weld layer 11a and the 2nd weld layer 11b and the operation engaging as follows: by inputting thermoae low welding, form the 1st weld layer 11a and be used as the 1st weld layer, then, on the 1st weld layer 11a, (interior week) side is compared the general high heat input welding that heat input is large when forming with the 1st weld layer 11a and is formed the 2nd weld layer 11b.
For example, can also by with repeatedly or several different methods implement low_input_power and weld to form the 1st weld layer 11a, by with repeatedly or several different methods implement high heat input and weld to form the 2nd weld layer 11b.
After welding finishes, above-mentioned C type stationary fixture 7 is pulled down.
Then, the metallic plate 13 of the drum after welding is carried out take material modified a heat treatment arbitrarily, outer surface roughing arbitrarily, the coarse regulation of rotary drum radial arbitrarily as object, then carry out surperficial hardening heat processing.
Then, through the two sides of the metallic plate 13 of drum being installed to the construction of side plate and axle, rotary drum radial fine finishining, the outermost roughness adjustment of cylinder surface and hard chrome plating etc., complete the roll bending hollow cylinder as final products.
In the 4th embodiment of the manufacture method of roll bending hollow cylinder of the present invention, also can access the effect roughly the same with the 1st embodiment of the manufacture method of above-mentioned roll bending hollow cylinder.
And, welding as from the groove processing department 9 to inner peripheral surface side, first form the 1st weld layer (the 1st weld layer 11a) of low_input_power welding, on the 1st weld layer, by high heat input, weld and form the 2nd weld layer (the 2nd weld layer 11b), thus, can further alleviate heat affecting of outer surface of cylinder etc., further alleviate the heat affecting to outer peripheral face when high heat input welds, can realize the further reduction of cylinder surface difference of hardness.
< the 5th embodiment >
Use Figure 11, the 5th embodiment of the embodiment as roll bending hollow cylinder of the present invention and steel plate manufacturing process device is described.
Figure 11 means that the roll bending hollow cylinder that the manufacture method by illustrative roll bending hollow cylinder of the present invention in above-mentioned the 1st～4th embodiment is produced is applicable to the figure of an example of steel plate manufacturing process device.
As shown in figure 11, in steel plate manufacturing process device, mainly CAL (continuous annealing line: Continuous Annealing Line) or CGL (continuous hot-dipping line: Continuous Galvanizing Line) etc. in the transport device in, the roll bending hollow cylinder that especially uses the manufacture method by illustrative roll bending hollow cylinder of the present invention in the 1st～4th above-mentioned embodiment to produce to the hollow cylinder R of diameter 400mm～1500mm.
The use object of the roll bending hollow cylinder that in addition, the manufacture method by illustrative roll bending hollow cylinder of the present invention in the 1st～4th above-mentioned embodiment produces is not limited to steel plate manufacturing process device as shown in Figure 11.
According to the 1st～4th embodiment of the manufacture method of above-mentioned roll bending hollow cylinder, can be efficiently and manufacture at low cost roll bending hollow cylinder, this roll bending hollow cylinder has been eliminated owing to being folded with the transfer printing to steel plate of the inhomogeneous part of surface roughness that the existence of the sealing wire of welding material generates, can under the state that maintains surface of steel plate quality compared with highland, carry out conveyance.The hollow cylinder that the conveyance that this roll bending hollow cylinder is very suitable for using in steel plate manufacturing process is used.
Therefore, according to the 5th embodiment of roll bending hollow cylinder of the present invention and steel plate manufacturing process device, needn't worry the transfer printing to steel plate, can give sufficient production line tension force, in the surface treated steel plate of for example advanced specification, also can realize the operation running of having given full play to equipment capacity.Therefore, can give full play to the production capacity of steel plate, and can under the state of the surface quality of the steel plate that keeps producing compared with highland, carry out conveyance.In addition, because the reduction of the poor reduction of case hardness and the weld part areal deformation of accompanying therewith realizes replacement frequency reduction of conveyance cylinder etc., the effect of obvious fee cut can be expected thus, and the manufacturing cost of nonexpondable conveyance cylinder in the manufacturing process of steel plate and the maintenance cost need to change time etc. can be cut down.
Other > of <
In addition, the present invention is not limited to above-described embodiment, can carry out various distortion and application.
In the present invention, mated condition refers to the docking left side 2a of metallic plate 12 and docks right side 2b with the state state respect to one another of space loss.
In addition, in the present invention, the state of space loss refers to: the gap of the docking left side 2a of metallic plate 12 and docking right side 2b is that 0.8mm is following, the narrow state below 0.5mm more preferably, more preferably make to dock the state that left side 2a is 0 with the gap of docking right side 2b, and the docking left side 2a of metallic plate 12 and the layer that docks right side 2b are poor for 1.0mm is following, more preferably below 0.5mm, more preferably 0 state.
Description of reference numerals
1 ... docking section;
2a ... docking left side;
2b ... docking right side;
3a ... machinery processing apparatus;
3a1 ... the slotting cutter of rectilinear form;
3b ... machinery processing apparatus;
3b1 ... the slotting cutter of taper;
3c ... machinery processing apparatus;
4 ... ring-like stationary fixture;
5a ... top pushing bolt;
5b ... sidepiece pushing bolt;
5c ... bottom pushing bolt;
5d ... piece;
5e ... (C type shape) framework;
5f ... (annular) framework;
6 ... arm humanoid robot;
6a ... outer surface side Laser Welding head;
6a ... inner surface side Laser Welding head;
6c ... robot arm;
7 ... C type stationary fixture;
8 ... coning angle datum mark;
9 ... inner circumferential side groove processing department (V-shape);
10 ... welding head;
11 ... groove part weld part;
11a ... the 1st weld layer;
11b ... the 2nd weld layer;
12 ... metallic plate cylindraceous (before welding);
13 ... metallic plate cylindraceous (after welding);
R ... roll bending hollow cylinder of the present invention.

Claims (8)

1. a manufacture method for roll bending hollow cylinder, is characterized in that,
After having implemented that the metallic plate of rectangle is bent to rolling machining cylindraceous, the end face that makes to bend to the both ends of described metallic plate cylindraceous becomes mated condition;
Under this state, the inner circumferential side at the both ends of this docking is implemented groove processing and formed groove processing department;
The end face of the outer circumferential side at the both ends of described docking is implemented machining and made described end face become level and smooth;
Then, from outer circumferential side, to bending to described metallic plate cylindraceous, apply pushing force, become the state of the space loss between the end face that makes described both ends;
Under this state, between the end face at described both ends, by laser beam, the described both ends of described metallic plate are not welded sandwiched welding material;
Then, use welding material to implement welding to the groove processing department of described inner circumferential side, make to bend to described metallic plate cylindraceous and form drum.
2. the manufacture method of roll bending hollow cylinder according to claim 1, is characterized in that,
At the end face to the outer circumferential side at the both ends of described docking, implement in the operation of machining,
Between the end face at described both ends, be formed with whole parallel interval of end face.
3. the manufacture method of roll bending hollow cylinder according to claim 1, is characterized in that,
At the end face to the outer circumferential side at the both ends of described docking, implement in the operation of machining,
With when becoming the state of the space loss between the end face that makes to be formed at described both ends, whole the parallel mode of end face at described both ends, makes the end face at the both ends of described docking form the open taper of outer circumferential side.
4. according to the manufacture method of the roll bending hollow cylinder described in any one in claim 1～3, it is characterized in that,
With arm humanoid robot, carry out the welding based on described laser beam and use the welding of described welding material.
5. according to the manufacture method of the roll bending hollow cylinder described in any one in claim 1～4, it is characterized in that,
Using welding material the groove processing department of described inner circumferential side to be implemented in the operation of welding,
In described groove processing department, carry out low_input_power and weld to form the 1st weld layer;
On described the 1st weld layer, carry out comparing with described low_input_power welding the high heat input that heat input is large and weld to form the 2nd weld layer, thus, in described groove processing department, form the weld part of double-layer structural.
6. according to the manufacture method of the roll bending hollow cylinder described in any one in claim 1～5, it is characterized in that,
From outer circumferential side to bending to described metallic plate cylindraceous and applying pushing force and become the operation of state of the space loss between the end face that makes described both ends,
The stationary fixture that use has dipper crowding gear pushes bending to described metallic plate cylindraceous from outer circumferential side, thereby becomes the state of the space loss between the end face that makes described both ends.
7. a roll bending hollow cylinder, utilizes the manufacture method of the roll bending hollow cylinder described in any one in claim 1～6 and makes.
8. a steel plate manufacturing process device, has been used the roll bending hollow cylinder that utilizes the manufacture method of the roll bending hollow cylinder described in any one in claim 1～6 and make.
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WO2016086250A2 (en) 2014-12-01 2016-06-09 Georg Michael Ickinger Drying cylinder consisting of a coaxial double cylinder and an annular gap
AT516781A2 (en) * 2015-02-05 2016-08-15 Georg Michael Dipl Ing Dr Techn Ickinger Thin-walled drying cylinder Use, process, device, manufacture
CN107088599A (en) * 2017-05-06 2017-08-25 芜湖瑞德机械科技有限公司 A kind of stainless steel tube makes ripple machine
CN107284795A (en) * 2017-06-26 2017-10-24 苏州固安包装材料有限公司 A kind of laser welding pail pack and its welding procedure
CN107598373A (en) * 2017-09-28 2018-01-19 安徽工业大学 A kind of motor sealing drum laser welding manufacture method
CN107639359A (en) * 2017-10-30 2018-01-30 二重集团（镇江）重型装备厂有限责任公司 A kind of modified welding procedure for thick-walled vessel cylinder longitudinal joint groove
CN110153641A (en) * 2018-02-11 2019-08-23 上海海立电器有限公司 A kind of roll bending welding method and metallic cylinder
CN110722265A (en) * 2019-11-19 2020-01-24 中国科学院合肥物质科学研究院 Method for controlling high-energy beam welding deformation
CN111702675A (en) * 2020-06-22 2020-09-25 徐州徐工传动科技有限公司 Shell machining clamp mechanism
CN111761289A (en) * 2020-08-17 2020-10-13 陈红 Clamping device for welding steel pipe
CN114258335A (en) * 2019-08-22 2022-03-29 株式会社古屋金属 Method for manufacturing metal series tubular material and back pad fixture used for same

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016086250A2 (en) 2014-12-01 2016-06-09 Georg Michael Ickinger Drying cylinder consisting of a coaxial double cylinder and an annular gap
AT516781A2 (en) * 2015-02-05 2016-08-15 Georg Michael Dipl Ing Dr Techn Ickinger Thin-walled drying cylinder Use, process, device, manufacture
CN107088599A (en) * 2017-05-06 2017-08-25 芜湖瑞德机械科技有限公司 A kind of stainless steel tube makes ripple machine
CN107284795A (en) * 2017-06-26 2017-10-24 苏州固安包装材料有限公司 A kind of laser welding pail pack and its welding procedure
CN107598373B (en) * 2017-09-28 2019-09-24 安徽工业大学 A kind of driving motor sealing drum laser welding manufacturing method
CN107598373A (en) * 2017-09-28 2018-01-19 安徽工业大学 A kind of motor sealing drum laser welding manufacture method
CN107639359A (en) * 2017-10-30 2018-01-30 二重集团（镇江）重型装备厂有限责任公司 A kind of modified welding procedure for thick-walled vessel cylinder longitudinal joint groove
CN110153641A (en) * 2018-02-11 2019-08-23 上海海立电器有限公司 A kind of roll bending welding method and metallic cylinder
CN114258335A (en) * 2019-08-22 2022-03-29 株式会社古屋金属 Method for manufacturing metal series tubular material and back pad fixture used for same
CN114258335B (en) * 2019-08-22 2024-02-20 株式会社古屋金属 Method for manufacturing metal tube material
CN110722265A (en) * 2019-11-19 2020-01-24 中国科学院合肥物质科学研究院 Method for controlling high-energy beam welding deformation
CN111702675A (en) * 2020-06-22 2020-09-25 徐州徐工传动科技有限公司 Shell machining clamp mechanism
CN111702675B (en) * 2020-06-22 2021-09-14 徐州徐工传动科技有限公司 Shell machining clamp mechanism
CN111761289A (en) * 2020-08-17 2020-10-13 陈红 Clamping device for welding steel pipe

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