CN102151968A - Method for adding online annealing function of full-automatic narrow lap welding machine - Google Patents
Method for adding online annealing function of full-automatic narrow lap welding machine Download PDFInfo
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- CN102151968A CN102151968A CN 201110040990 CN201110040990A CN102151968A CN 102151968 A CN102151968 A CN 102151968A CN 201110040990 CN201110040990 CN 201110040990 CN 201110040990 A CN201110040990 A CN 201110040990A CN 102151968 A CN102151968 A CN 102151968A
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Abstract
The invention relates to a method for adding the online annealing function of a full-automatic narrow lap welding machine, belonging to the field of strip cold rolling technique. The method is characterized in that a current is reloaded to a welding seam after the welding completes to heat the welding seam to an annealing temperature so as to achieve annealing; and the heating temperature of the welding seam can meet the requirement of the annealing process by setting the loading current, the welding wheel pressure and the running speed of a C-shaped trolley on a man-machine interface. The method has the advantage that the method can achieve the post-welding annealing function of the TMEIC narrow lap welding machine only through a PLC (programmable logic controller) program and transformation of the corresponding man-machine interface without changing mechanical and electric hardwares.
Description
Technical field
The invention belongs to the cold rolled sheet technical field, particularly relate to the method that a kind of full-automatic narrow lap welder increases online annealing function, the full-automatic narrow lap welder of using in the cold rolling processing line of TMEIC (Japanese Toshiba Mitsubishi) is increased online annealing function.
Background technology
In cold rolled sheet is produced, at high-carbon steel such as high-strength steel more than 0.15% and structural steel, behind pickling processes and mill milling, finish annealing process in the bell furnace of being everlasting for phosphorus content, and do not adopt the mode of continuous annealing that coil of strip is carried out post processing.Former because the bell-type annealing mode is handled for whole volume, coil of strip need not uncoiling and promptly finishes annealing process; And in continuous annealing production line, coil of strip need launch the back through uncoiling pass each process procedure of whole production line with the form of band steel, and it is from beginning to end that adjacent two volumes need to use the welding machine welding to realize, guarantees the continuity of producing with this.For ordinary low-carbon steel and gapless atomic steel, the intensity of weld seam is enough to pass whole production line and broken belt not, but then different for high-carbon steel, because the carbon content of base material is too high, the internal stress that weld seam is bigger causes weld seam to have extremely strong fragility, and welding quality can not reliably guarantee.
Heat-treat with the mode butt welded seam of annealing after welding, can effectively reduce the internal stress of weld seam, thinning microstructure crystal grain reduces the fragility of weld seam, thereby improves the intensity of weld seam.Yet the narrow lap welder of C type of handling the various brands of widespread usage in the line at the band steel does not have the post-weld annealed function, comprise the narrow lap welder of TMEIC, not only do not provide annealing device, and facility compact do not have headspace, make yet suitable difficulty such as the annealing device that increases induction heater.
The narrow lap welder of TMEIC adopts the electrode of weldering wheel form, realizes welding by auxiliary equipment such as clamps with a series of sequentially-operatings.Normal welding action as shown in Figure 1.
Summary of the invention
The object of the present invention is to provide a kind of full-automatic narrow lap welder to increase the method for online annealing function, solved under the situation of not having machinery and the change of electric hardware, single transformation by PLC program and corresponding man-machine interface realizes that the narrow lap welder of TMEIC increases the post-weld annealed function.
For realizing purpose of the present invention, the technical scheme below the present invention has adopted:
The band steel is through after welding, weld seam fusion area resistance is bigger, use this principle, butt welded seam loading current once more after welding is finished, make the weld seam heating reach annealing temperature and realize annealing, by on man-machine interface, loading current, weldering wheel pressure and three parameters of C type crab traversing speed being set, make the temperature of weld seam heating reach the annealing process requirement, the adjustable range of three parameters is as follows:
Loading current (electric current of promptly annealing): 5～25kA
Weldering wheel pressure (pressure of promptly annealing): 3～25kN
C type crab traversing speed (being annealing speed): 2～15m/min.
For realizing above-mentioned functions, the present invention is between " welding finishes, and weldering is taken turns and rolling wheel lifts " and " the entrance and exit clamp is opened " action of the narrow lap welder of TMEIC, increase the complete annealing sequential of a cover, that is: finish after dolly gets back to fore side in welding, the weldering wheel is depressed once more, finished and weld similar sequentially-operating.The annealing sequential links up with the original front and back of welding machine sequentially-operating and is connected, and as a kind of functional mode of welding machine, selects whether enable the annealing function on man-machine interface, and under the situation of not enabling the annealing pattern, the welding machine sequentially-operating is preceding identical with change; Under the situation of enabling the annealing pattern, the concrete sequentially-operating after the welding beginning is as follows:
(1) the entrance and exit clamp cuts out to clamp respectively and takes the lead and magnetic tape trailer;
(2) scissors shear band headband tail;
(3) the outlet clamp tilts to lift;
(4) the inlet clamp marches forward and takes the lead to stretch into the magnetic tape trailer below to making;
(5) the outlet clamp tilts to playback to finish the overlap joint action;
(6) C type trolley travelling is to STAND-BY (welding is prepared) position;
(7) weldering wheel and rolling wheel are depressed;
(8) C type dolly moves to driving side, and optoelectronic switch detects strip edge portion simultaneously, and control electrode loads welding current in the strip width scope;
(9) weldering wheel and rolling wheel lifted after welding was finished.
From following the beginning is newly-increased the action:
(10) the outlet clamp is opened, and the inlet clamp keeps cutting out.The outlet clamp is opened and is used to discharge the stress that is caused by welding, and the inlet clamp is not opened the invariant positionization that is used to keep weld seam;
(11) C type dolly turns back to the STAND-BY position.For saving actuation time, dolly directly navigates to the STAND-BY position, does not get back to origin position;
(12) the weldering wheel is depressed;
(13) C type dolly moves to driving side, and optoelectronic switch detects strip edge portion simultaneously, and control electrode loads the annealing electric current in the strip width scope;
(14) the weldering wheel lifted after annealing finished.
The annealing action is so far, below turns back to original welding action.
(15) the entrance and exit clamp is opened;
(16) C type trolley travelling stops to driving side;
(17) discharge the shearing waste material;
(18) C type dolly returns the home position.
Above sequentially-operating as shown in Figure 2.
Increase the anneal sequence action and relate to following four aspect transformations:
(1) mainly by transform with entrance and exit clamp, weldering wheel drive and depress, waste material conveyer chain and the relevant suitable control program of strip edge portion detection;
(2) program of closing with tab order and sprocket bit phase shift of transforming C type dolly;
(3) transform original man-machine interface and the new man-machine interface of increase.
(4) on PWM (local operation) panel, increase annealing start button (tape light), manually start the annealing sequential when being used for semi-automatic annealing pattern, and show the state of annealing action.
Description of drawings
Fig. 1 is normal welding sequence action.
Fig. 2 is the welding sequence action of annealing pattern after enabling.
Fig. 3 is online cycle of annealing logic chart I.
Fig. 4 is online cycle of annealing logic chart II.
Fig. 5 is online cycle of annealing logic chart III.
Fig. 6 is online cycle of annealing logic chart IV.
Fig. 7 sets man-machine interface for pattern.
Fig. 8 sets man-machine interface for parameter.
The specific embodiment
Fig. 1～Fig. 8 is a kind of specific embodiment of the present invention, with the method described in the present invention the narrow lap welder of the MSW-C150D26-2R2PR of TMEIC company type is increased online annealing function.
One, program is transformed part
The flow chart of newly-increased program part is seen Fig. 3 to Fig. 6, wherein Fig. 3 and Fig. 4 are the annealing preparation routine, wherein N4 is the beginning of C type dolly finder, be connected C type dolly finder part in the original program, P1 is other beginnings along the control program, is connected the suitable control program of other except that the dolly finder in the original program, and this moment, the welding machine state was: C type dolly is positioned at driving side, weldering wheel and rolling wheel are in and lift the position, and the entrance and exit clamp is in clamped condition.Q3 finishes for the annealing preparation routine.Fig. 5 and Fig. 6 are cycle of annealing, from Q3, N5 is connected back C type dolly localization part in the original program for the end point of newly-increased C type dolly finder, P2 is other end point along the control program except that the dolly finder, is connected back other suitable control program part in the original program.It is specific as follows to increase logic newly:
At first judge the set condition of annealing pattern: opening/closing, select to set by the annealing pattern " ON/OFF " among the man-machine interface PN10.When the annealing pattern was closed, program directly was connected back original program by X1 and Y1.When the annealing pattern is opened:
(1) export clamp and open (the inlet clamp keeps clamping), C type dolly was returned with the speed of 15m/min to fore side by driving side after the time-delay in 1 second;
(2) dolly 18cm place deceleration before arriving the STAND-BY position is the 4m/min operation;
(3) trolley travelling stops to the STAND-BY position, exports clamp then and closes once more;
(4) weld the wheel rotation and drive beginning, upper welding wheel is depressed with the high pressure pattern, and after affirmation was depressed and put in place, the power of depressing was changed into the setting value (annealing pressure is set) of annealing pressure in man-machine interface PN20.Meanwhile, rolling wheel keeps lifting the position and is failure to actuate;
(5) set condition of judgement annealing pattern: automatic/semi-automatic.Under semi-automatic pattern, the annealing start button begins flicker, and after the operator pressed, welding machine began to carry out subsequent action.Under automatic mode, welding machine is directly carried out subsequent action;
(6) annealing start button indicator lamp Chang Liang, weldering wheel compression air purge begins, and dolly moves (annealing speed is set) with the annealing speed of setting to driving side in man-machine interface PN20;
(7) set condition in the loading zone of judgement annealing electric current: maximum magnitude/determine by optoelectronic switch, this sets not have separately and sets, take identical setting (setting) with the loading zone of welding current in man-machine interface PN10, the weldering wheel loads and closes the annealing electric current according to set condition;
After the time-delay in (8) 1 seconds, upper welding wheel lifts, and closes weldering wheel compression air purge simultaneously, confirms to close after upper welding wheel lifts the rotation of weldering wheel and drives;
(9) dolly decelerates to the speed operation of 1.5m/min after reaching the driving side decelerate position;
(10) dolly is out of service after arriving driving side.
Two, man-machine interface is revised part
Man-machine interface is revised part and is seen Fig. 7 and Fig. 8, and wherein Fig. 7 sets interface PN10 for pattern, increases the selector button of annealing pattern " ON/OFF ", selects whether to enable the post-weld annealed pattern with this; Increase annealing action " automatic/semi-automatic " and select, when selecting " automatically ", automatically perform the annealing action after welding is finished, when selecting " semi-automatic ", need the operator to press guidance panel " annealing beginning " pushbutton enable annealing action.Fig. 8 sets interface PN20 for annealing parameter, and annealing electric current, annealing speed and three parameters of annealing pressure are set in this page.
Three, increase the annealing start button on the guidance panel
Use existing vacant button PBL111 (tape light) as the annealing start button in this transformation, the input period of its button is X72A, and the output period of its indicator lamp is Y74A.
Claims (1)
1. a full-automatic narrow lap welder increases the method for online annealing function, it is characterized in that, butt welded seam loading current once more after welding is finished, make the weld seam heating reach annealing temperature and realize annealing, by on man-machine interface, loading current, weldering wheel pressure and three parameters of C type crab traversing speed being set, make the temperature of weld seam heating reach the annealing process requirement, the adjustable range of three parameters is as follows:
Loading current: 5～25kA;
Weldering wheel pressure: 3～25kN;
C type crab traversing speed: 2～15m/min;
Under the situation of enabling the annealing pattern, the concrete sequentially-operating after the welding beginning is as follows:
(1) the entrance and exit clamp cuts out to clamp respectively and takes the lead and magnetic tape trailer;
(2) scissors shear band headband tail;
(3) the outlet clamp tilts to lift;
(4) the inlet clamp marches forward and takes the lead to stretch into the magnetic tape trailer below to making;
(5) the outlet clamp tilts to playback to finish the overlap joint action;
(6) C type trolley travelling is to the welding ready position;
(7) weldering wheel and rolling wheel are depressed;
(8) C type dolly moves to driving side, and optoelectronic switch detects strip edge portion simultaneously, and control electrode loads welding current in the strip width scope;
(9) weldering wheel and rolling wheel lifted after welding was finished;
(10) the outlet clamp is opened, and the inlet clamp keeps cutting out.The outlet clamp is opened and is used to discharge the stress that is caused by welding, and the inlet clamp is not opened the invariant positionization that is used to keep weld seam;
(11) C type dolly turns back to the welding ready position, and for saving actuation time, dolly directly navigates to the STAND-BY position, does not get back to origin position;
(12) the weldering wheel is depressed;
(13) C type dolly moves to driving side, and optoelectronic switch detects strip edge portion simultaneously, and control electrode loads the annealing electric current in the strip width scope;
(14) the weldering wheel lifted after annealing finished.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537880A (en) * | 2012-07-17 | 2014-01-29 | 宝山钢铁股份有限公司 | Method for welding high-strength steel through laser welding machine |
| CN104439738A (en) * | 2014-11-07 | 2015-03-25 | 武汉钢铁(集团)公司 | Method for welding oriented silicon steel through Taylor welder and enabling weld joint to smoothly pass through rolling mill |
| CN104889555A (en) * | 2015-05-29 | 2015-09-09 | 武汉凯奇特种焊接设备有限责任公司 | Electric resistance welder and welding technology with on-line continuous weld seam heat processing |
| CN107442915A (en) * | 2017-09-21 | 2017-12-08 | 武汉钢铁有限公司 | The narrow overlap joint welding method of the phosphorous high-strength IF steel of 440MPa level cold rollings |
| CN110695505A (en) * | 2019-10-15 | 2020-01-17 | 莱芜市安邦冶金设备有限公司 | Welding process of pipe body |
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| JPS63215387A (en) * | 1987-03-05 | 1988-09-07 | Mitsubishi Electric Corp | Welding equipment |
| JPH0857657A (en) * | 1994-08-24 | 1996-03-05 | Meidensha Corp | Post heating annealing method of spot weld part and lap spot welding device |
| KR20000041277A (en) * | 1998-12-22 | 2000-07-15 | 이구택 | Method for welding mash seam on stainless steel of martensite group |
| CN1572411A (en) * | 2003-06-03 | 2005-02-02 | 株式会社电装 | Resistance welding method and resistance welding apparatus |
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2011
- 2011-02-19 CN CN 201110040990 patent/CN102151968B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS63215387A (en) * | 1987-03-05 | 1988-09-07 | Mitsubishi Electric Corp | Welding equipment |
| JPH0857657A (en) * | 1994-08-24 | 1996-03-05 | Meidensha Corp | Post heating annealing method of spot weld part and lap spot welding device |
| KR20000041277A (en) * | 1998-12-22 | 2000-07-15 | 이구택 | Method for welding mash seam on stainless steel of martensite group |
| CN1572411A (en) * | 2003-06-03 | 2005-02-02 | 株式会社电装 | Resistance welding method and resistance welding apparatus |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537880A (en) * | 2012-07-17 | 2014-01-29 | 宝山钢铁股份有限公司 | Method for welding high-strength steel through laser welding machine |
| CN103537880B (en) * | 2012-07-17 | 2016-03-30 | 宝山钢铁股份有限公司 | A kind of welding method of laser welder high-strength steel |
| CN104439738A (en) * | 2014-11-07 | 2015-03-25 | 武汉钢铁(集团)公司 | Method for welding oriented silicon steel through Taylor welder and enabling weld joint to smoothly pass through rolling mill |
| CN104889555A (en) * | 2015-05-29 | 2015-09-09 | 武汉凯奇特种焊接设备有限责任公司 | Electric resistance welder and welding technology with on-line continuous weld seam heat processing |
| CN107442915A (en) * | 2017-09-21 | 2017-12-08 | 武汉钢铁有限公司 | The narrow overlap joint welding method of the phosphorous high-strength IF steel of 440MPa level cold rollings |
| CN107442915B (en) * | 2017-09-21 | 2020-08-04 | 武汉钢铁有限公司 | Narrow lap welding method for 440 MPa-grade cold-rolled phosphorus-containing high-strength IF steel |
| CN110695505A (en) * | 2019-10-15 | 2020-01-17 | 莱芜市安邦冶金设备有限公司 | Welding process of pipe body |
| CN110695505B (en) * | 2019-10-15 | 2021-08-31 | 莱芜市安邦冶金设备有限公司 | Welding process of pipe body |
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Application publication date: 20110817 Assignee: BEIJING SHOUGANG COLD ROLLING THIN PLATE CO., LTD. Assignor: Capital Iron & Steel General Company Contract record no.: 2015990001019 Denomination of invention: Method for adding online annealing function of full-automatic narrow lap welding machine Granted publication date: 20130109 License type: Common License Record date: 20151209 |
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Address after: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: Capital Iron & Steel General Company |
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