CN101215626A - Continuous heat treatment method for angle steel and angle steel manufacturing method - Google Patents
Continuous heat treatment method for angle steel and angle steel manufacturing method Download PDFInfo
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- CN101215626A CN101215626A CNA2008100590111A CN200810059011A CN101215626A CN 101215626 A CN101215626 A CN 101215626A CN A2008100590111 A CNA2008100590111 A CN A2008100590111A CN 200810059011 A CN200810059011 A CN 200810059011A CN 101215626 A CN101215626 A CN 101215626A
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Abstract
The invention relates to a continuous angle steel heat treating process and an angle steel angle steel, wherein the angle steel heat treating process comprises continuous high-frequency quenching and drawing treating steps. The angle steel which is processed is continuously moved on a working table and is passed through a quenching heater, a cooler and a drawing heater in order. The angle steel is heated up through the quenching heater, and the surface of work-piece is cooled down with water pressure through the cooler, thereby finishing the high-frequency quenching step. The cooler is provided with an outer steel sleeve, a plurality of inner steel sleeves and a plurality of pieces of water supply pipes, and water flow evenly drained on the heated work-piece in 360 degrees all-round way along gaps between the outer steel sleeve and the inner steel sleeves. The drawing treating step is finished through heating by the drawing heater. The angle steel manufacturing process comprises charging material, punching, shaping preliminary, shaped in steps, quenching in high frequency, drawing treating, cooling down, shaping and automatically cutting off. The invention provides a manufacturing process and a manufacturing device of high strength profiled bar which have higher automation, and angle steel which is manufacturing by the process and the device has high strength and excellent flexibility, which can naturally restored after bended by forced, and the surface is relatively smooth with oil dirt, which can be directly blasted with plastic.
Description
Technical field:
The present invention relates to the manufacture method and the producing apparatus of a kind of continuous angle steel heat treating method and corner iron manufacturing method and angle steel producing apparatus, particularly a kind of high-intensity special-shaped steel.
Background technology:
Along with improving constantly of standard of living, people are also more and more higher to the requirement of material, and are also more and more higher to the requirement of the angle steel that uses in the product.Quality is superior, and cheap angle steel also day by day becomes development trend.Angle steel product at present commonly used has two kinds of 3mm and 5mm, the main course of processing is: blanking, punching, bending and molding, plastic-blasting, and material therefor is Q235, and certain elongation is arranged, the 3mm angle steel intensity difference that processes like this is subjected to easily producing behind the downward pressure problems such as flexural deformation for a long time.In order to make angle steel can reach better bearing capacity, also there is the people to improve the intensity of angle steel by the thickness that increases angle steel, such as the material of using 5 mm instead, but so improved material cost, result of use also fails to meet the demands.And process angle steel with general method, production efficiency is low, and the personnel requirement amount is big, the production cost height.
Summary of the invention:
Technical problem to be solved by this invention is to overcome existing above-mentioned deficiency in the prior art, and provide a kind of quality product height, with low cost, continuous angle steel heat treating method, corner iron manufacturing method and angle steel producing apparatus that level of automation is high, the feasible angle steel intensity height of producing, good toughness can restore naturally after the stressed bending, but not improve material cost.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: this continuous angle steel heat treating method, it is characterized in that comprising successive high-frequency quenching step and temper step, workpiece to be machined moves on worktable and order process quenching well heater continuously, water cooler and tempering well heater, described high-frequency quenching adopts the quenching well heater to heat in the solid-state high frequency electric source magnetic ripple mode of shaking, by water cooler hydraulic pressure is cooled off at workpiece surface then, the quenching temperature control detection instrument of measuring workpieces surface temperature is installed on the worktable, the workpiece surface temperature that the master control computer records according to quenching temperature control detection instrument and the quenching temperature parameter of setting, automatically regulate quenching heating power and quenching temperature, the realization quenching temperature is controlled automatically, quenching heating power scope is 50KW～500KW, the quenching temperature scope is 500 ℃～1000 ℃, described water cooler is provided with an outer steel sleeve, steel bushing and some induction pipes in several, induction pipe is installed on the outer steel sleeve, the gap of the oblique workpiece travel direction between induction pipe and outer steel sleeve and the interior steel bushing is communicated with, described temper adopts the tempering well heater to heat in the solid-state high frequency electric source magnetic ripple mode of shaking, the tempering temperature control detection instrument of measuring workpieces surface temperature is installed on the worktable, the workpiece surface temperature that the master control computer records according to tempering temperature control detection instrument and the tempering temperature parameter of setting, automatically regulate tempering heating power and tempering temperature, the realization tempering temperature is controlled automatically, tempering heating power scope is 10KW～200KW, and tempering range is 200 ℃～500 ℃.
Quenching heating power of the present invention is 100KW, 850 ℃ of quenching temperatures.
Water cooler of the present invention is provided with four interior steel bushings and three induction pipes, thread fit between outer steel sleeve and the interior steel bushing.
Tempering heating power of the present invention is 60KW, and tempering temperature is 320 ℃.
The present invention solves the problems of the technologies described above the technical scheme that is adopted and also comprises a kind of corner iron manufacturing method of angle steel heat treating method continuously that comprises as mentioned above, it is characterized in that comprising the steps: feeding and punching, buffering, preliminary shaping, multistep molding, high-frequency quenching, temper, cooling, shaping is cut off automatically.
Automatic feeding system feeding and punching are adopted in feeding of the present invention and punching, feeding punching controller is regulated the position of processed steel band automatically according to the input parameter and the value of setting, go out various dissimilar holes at the optional position control feeding puncturing machine of setting, the realization punching is controlled automatically.
Preliminary shaping employing of the present invention is some carries out preliminary shaping to preliminary shaping roller, every pair of preliminary shaping roller is provided with the last preliminary shaping roller and the following preliminary shaping roller of coupling, the spacing that goes up preliminary shaping roller and following preliminary shaping roller is slightly less than the thickness of processed steel band, going up preliminary shaping roller, following preliminary shaping roller all flexibly connects with preliminary shaping frame, processed steel band is pushed forward by the traction of moulding actuating unit during preliminary integer, thereby rolling smooth through the extruding of every pair of preliminary shaping roller.
Multistep molding of the present invention is by the substep compacting of angle steel molding device to processed steel band, thereby processed steel band progressively is pressed into angle steel, described angle steel molding device is provided with the horizontal roller frame, format roll, the edger roll frame, the moulding edger roll, format roll is provided with some right, the every pair of format roll is provided with plain-barreled roll in the moulding of coupling, plain-barreled roll under the moulding, plain-barreled roll in the moulding, plain-barreled roll and horizontal roller frame flexibly connect under the moulding, plain-barreled roll in the moulding, spacing under the moulding between the plain-barreled roll is slightly less than the thickness of machined material, plain-barreled roll in the moulding, plain-barreled roll all is connected with the moulding actuating unit under the moulding, the format roll coupling of moulding edger roll and previous stage also is installed on the edger roll frame format roll, the size of moulding edger roll, the installation site, processing angle and workpiece to be machined are suitable.
Shaping employing of the present invention is some carries out shaping to the shaping roller, every pair of shaping roller is provided with the last shaping roller and the following shaping roller of coupling, spacing between last shaping roller, the following shaping roller is slightly less than the thickness of processed steel band, last shaping roller is connected with the shaping actuating unit with following shaping roller, last shaping roller is connected with the shaping actuating unit with following shaping roller, and the size of shaping roller, installation site and processing angle and workpiece to be machined are suitable.
Automatic cut-out of the present invention adopts automatic center punch and photo-sensor to cut off angle steel automatically according to program and parameter.
The present invention compared with prior art has the quality product height, and is with low cost, and level of automation height, product surface are smooth relatively, no greasy dirt, but advantages such as direct surface plastic-blasting.
Description of drawings:
Fig. 1 is the schematic top plan view of embodiment of the invention angle steel molding device, reshaping device and automatic center punch.
Fig. 2 is the structural representation of every pair of format roll of embodiment of the invention angle steel molding device and moulding edger roll.
Fig. 3 is the schematic top plan view of every pair of format roll of embodiment of the invention angle steel molding device and moulding edger roll.
Fig. 4 is the structural representation of every pair of guide roller of embodiment of the invention angle steel molding device.
Fig. 5 is the A-A sectional view of Fig. 3.
Fig. 6 is the B-B sectional view of Fig. 3.
Fig. 7 is the structural representation of every pair of shaping roller of the embodiment of the invention.
Fig. 8 is the shake synoptic diagram of ripple heating of the solid-state high frequency electric source magnetic of the embodiment of the invention.
Fig. 9 is the shake side schematic view of wave heater of the solid-state high frequency electric source magnetic of the embodiment of the invention.
Figure 10 is the structural representation of embodiment of the invention water cooler.
Figure 11 is the C place enlarged diagram of Figure 10.
Figure 12 is the D place enlarged diagram of Figure 10.
Figure 13 is the floor map of embodiment of the invention corner iron manufacturing method.
Figure 14 is the schema of embodiment of the invention corner iron manufacturing method.
Embodiment:
Referring to Fig. 1, Fig. 8～Figure 13, the embodiment of the invention is applied on a kind of manufacture method and producing apparatus of high-intensity special-shaped steel especially, but the present invention is not subjected to the limitation of embodiment.
The continuous angle steel heat treating method of the embodiment of the invention, comprise successive high-frequency quenching step and temper step, workpiece to be machined (angle steel) moves on worktable and order process quenching well heater 13 continuously, water cooler 8 and tempering well heater, workpiece to be machined moves right continuously on worktable and adopts the mode of horizontal roller frame 1 and format roll to realize, described high-frequency quenching adopts quenching well heater 13 to heat in the solid-state high frequency electric source magnetic ripple mode of shaking, the quenching heating power reaches 100KW, 850 ℃ of quenching temperatures, by water cooler 8 hydraulic pressure is cooled off at workpiece surface then, the quenching temperature control detection instrument 9 of measuring workpieces surface temperature and coupled quenching well heater 13 are installed on the worktable, the workpiece surface temperature that the quenching temperature control detection instrument 9 that master control computer 28 bases link to each other records and the quenching temperature parameter of setting, automatically regulate quenching heating power and quenching temperature, the realization quenching temperature is controlled automatically.Described water cooler 8 is provided with an outer steel sleeve 14, four interior steel bushings 15 and three induction pipes 16, outer steel sleeve 14, four interior steel bushings 15 are the torus of coupling, be provided with internal thread 141 in the outer steel sleeve 14, interior steel bushing 15 is outside equipped with corresponding outside screw 151, middle four interior steel bushings 15 leave gap 81 when being threaded assembling with outer steel sleeve 14, induction pipe 16 is installed on the outer steel sleeve 14, the gap 81 of the oblique workpiece travel direction between induction pipe 16 and outer steel sleeve 14 and the interior steel bushing 15 is communicated with, when induction pipe 16 is imported water cooler 8 with water, (hydraulic pressure can be adjusted according to actual needs owing to the hydraulic pressure effect, usually between 5～50Mpa, special case is 20Mpa) water is clamp-oned gap 81, and (gap 81 big I are adjusted according to actual needs, usually between 0.05～1 millimeter, special case is 0.1 millimeter) in, current drench workpiece surface along the gap 81 of oblique workpiece travel direction with comprehensive the dashing equably of 360 degree.Because the unique design of water cooler 8 makes that current guarantee to flow to water outlet direction (workpiece travel direction), and can not have influence on only 5 centimetres quenching well heater 13 of distance.Described temper adopts the tempering well heater to heat in the solid-state high frequency electric source magnetic ripple mode of shaking, the tempered heating means are identical with quenching substantially, tempering heating power 60KW, 320 ℃ of temperature, the tempering temperature control detection instrument 10 of measuring workpieces surface temperature and coupled tempering well heater are installed on the worktable, the workpiece surface temperature that the tempering temperature control detection instrument 10 that master control computer 28 bases link to each other records and the tempering temperature parameter of setting, automatically regulate tempering heating power and tempering temperature, the realization tempering temperature is controlled automatically, tempering heating power scope is 10KW～200KW, and tempering range is 200 ℃～500 ℃.
The principle of the continuous angle steel heat treating method of the present invention is:
Work in-process angle steel (workpiece) after moulding is finished needs Q-tempering district 25 in through high-frequency quenching and the temper characteristic with the raising angle steel.High-frequency quenching is meant and utilizes high-frequency current to make the workpiece surface part heat, cool off, and obtains the heat treating method of cementation zone.Workpiece is put into Induction heater, makes workpiece surface produce induced current, at extremely short time internal heating after quenching temperature, water spray cooling immediately, workpiece surface is quenched, thereby obtain very tiny acicular martensitic structure, martensite hardness, intensity height.Its advantage is that workpiece quenching rear surface oxidation and decarbonization is few, be out of shape little, the workpiece quality height, workpiece surface is bright and clean.The material of angle steel can use 45 steel or other that higher intensity and certain plasticity and flexible steel are arranged, high-frequency quenching is the surface strengthening to the workpiece certain depth, and heart portion keeps handling preceding tissue and performance basically, thereby can obtain high strength, the material behavior of high-wearing feature and high tenacity.Again because of being local heating,, falling and subtract energy consumption so can significantly reduce quenching strain.Because what adopt is the magnetic ripple heating of shaking, little to the human body radiation amount; The solid-state quenching of high frequency does not simultaneously have electrocorrosion, and the material surface oxide compound is few, and the product surface after machining is smooth relatively, no greasy dirt, but direct surface plastic-blasting.
Temper is for internal stress that reduces material and fragility, keeps high rigidity and the wear resistance of material after quenching.Tissue after because quench is martensite and residual austenite, though martensite hardness, intensity height, plasticity is poor, and fragility is big, very easily fracture under repeated load and impact loading; In addition, the back tissue that quenches is unsettled, at room temperature just can slowly decompose generation volume change and cause workpiece deformation.Therefore.Workpiece after the quenching must carry out tempering could be used, and its objective is to eliminate or the reduction internal stress, reduces fragility, prevents distortion and cracking; Stabilizing tissue, stable dimensions and shape guarantee workpiece service precision and performance; Adjust intensity, the hardness of workpiece, obtain needed toughness and plasticity.
Embodiment of the invention corner iron manufacturing method is provided with following steps: multistep molding, and high-frequency quenching, temper, cooling, shaping is cut off automatically.Described high-frequency quenching and temper step are exactly above-mentioned continuous angle steel heat treating method.This moment, processed steel coil strip directly connect the multistep molding inlet.
Also can be provided with following steps before the embodiment of the invention multistep molding step: feeding and punching, buffering according to the punching needs.That is to say increases punching and buffering, and feeding puncturing machine 21 connects processed steel coil strip, directly connects the multistep molding inlet through punching and the processed steel band of buffered, perhaps connects preliminary shaping inlet.
Also can be provided with following preliminary shaping step before the embodiment of the invention multistep molding step according to actual needs.The purpose of preliminary shaping is planeness and the feedstock direction in order to adjust processed steel band.Preliminary shaping inlet directly connects processed steel coil strip or connects through punching and the processed steel band of buffered.More smooth or can omit preliminary shaping step when not needing punching when processed steel band.
The course of processing that the embodiment of the invention is complete is provided with following steps:
Feeding and punching, buffering, preliminary shaping, multistep molding, high-frequency quenching, temper, cooling, shaping is cut off automatically.This angle steel is generally unequal-sided, also can be equilateral, even the angle of bend of angle steel also can be adjusted corresponding apparatus as required and realizes.Being rolled onto final product angle steel from initial processed steel band carries out continuously, sets up the buffer step except the speed (special case is 3m/min) of each step after feeding and punching step speed (special case is 5m/min) and the preliminary shaping is inconsistent, the speed of each step is all consistent after the preliminary shaping.
Referring to Fig. 1～Fig. 6, Figure 13, embodiment of the invention angle steel molding device is provided with horizontal roller frame 1, format roll, edger roll frame 4, the moulding edger roll, the every pair of format roll is provided with in the moulding plain-barreled roll 3 under plain-barreled roll 2 and the moulding, plain-barreled roll 2 in the moulding, plain-barreled roll 3 is installed on the horizontal roller frame 1 under the moulding, the every pair of moulding edger roll is provided with before the moulding edger roll 42 after edger roll 41 and the moulding, before the moulding after edger roll 41 and the moulding edger roll 42 be installed on the edger roll frame 4, plain-barreled roll 2 in the moulding, plain-barreled roll 3 all is connected acquisition power under the moulding with the moulding actuating unit, and plain-barreled roll 2 in the moulding, plain-barreled roll 3 coupling and the machined material that will be clipped in wherein progressively are pressed into angle steel under the moulding.In the moulding under plain-barreled roll 2, the moulding spacing between the plain-barreled roll 3 can be slightly less than the thickness (this spacing was got 2.9 millimeters when for example machined material thickness was 3 millimeters) of machined material.Edger roll 42 is separately positioned on the both sides of machined material forming process travel direction (is from right to left from Fig. 1) after the preceding edger roll 41 of moulding, the moulding, edger roll 42 mainly play the guiding role after the preceding edger roll 41 of moulding, the moulding, also can reach the effect of assist formation simultaneously.Moulding actuating unit of the present invention adopts common motor, reduction box and transmission shaft mode, motor 6 drives reduction box 7, reduction box 7 drives moulding reduction box 7-1, moulding reduction box 7-1 drives in the moulding plain-barreled roll 22 under the plain-barreled roll 21 and moulding by moulding transmission shaft 19-1 again, and motor 6 will send through the machined material of preliminary shaping under the control of master control computer 28.Machined material adopts successive 45 steel bands, and thickness is 3 millimeters.
The format roll of the embodiment of the invention (comprise in the moulding under plain-barreled roll 2, the moulding plain-barreled roll 3) is provided with many to until tens pairs usually according to actual needs, the present embodiment format roll is provided with 12 pairs, the processing angle α of first pair of format roll is 180 degree, the processing angle α of second to the tenth a pair of format roll of series arrangement (promptly according to series arrangement from right to left shown in Figure 1) progressively changes to 90 degree from 171 degree, and the processing angle α of the 12 pair of format roll is 90 degree.Can certainly adopt other design, for example the first step forming process changes to 90 degree from 180 degree equably to the processing angle α of the format roll of final step forming process.Certainly processing angle α also can adopt the form of non-homogeneous change, and for example several processing angle α to format roll in front change more greatly, and several processing angle α to format roll in back change smaller, even severally can be 90 to format roll and spend at last.Format roll also can be used to drive workpiece to be machined and moves, and is the format rolls of 90 degree as water cooler 8 when the thermal treatment to just being provided with the processing angle between the guide support 5, is used for driving workpiece to be machined and moves.The quantity of edger roll 42 also can design according to actual needs after the preceding edger roll 41 of moulding, the moulding, the format roll or the in type angle unanimity of workpiece to be machined of the angle front one-level of edger roll 42 after the preceding edger roll 41 of moulding, the moulding, present embodiment has designed 8 pairs of moulding edger rolls in the multistep molding step.To being clipped in the progressively compacting of processed steel band wherein, make processed steel band be pressed into an angle of 90 degrees steel (special case is that minor face is long 25 millimeters, 40 millimeters on long limit) by every pair of format roll from 180 degree flat strip steels (special case is that width is 65 millimeters No. 45 steel).Because angle steel is progressively moulding, make that the angle steel that so processes is basic identical in thickness and other position in knee, have the intensity height, good toughness such as can restore naturally at advantage after the stressed bending, and the while cost is low, level of automation is high.
Referring to Fig. 1, Figure 13, automatic feeding system feeding and punching are adopted in the feeding of the embodiment of the invention and punching, feeding punching controller 20 is regulated the position of processed steel band automatically according to the input parameter and the value of setting, go out various dissimilar holes at the optional position control feeding puncturing machine of setting 21, the realization punching is controlled automatically.Feeding punching controller 20 is according to default, and 4 pairs of twisted spur gears of control electric motor driving drive 2 pairs of round rollers and rotate, and utilizes the frictional force between steel band and circle roller to reach automatically feed effect.Feeding punching controller 20 control worktable move in Y direction after the charging, and then processed steel band can be parked in the optional position in the mould.During punching, towards first hole, at the Kong Weiwei system zero point in feeding punching controller 20 these holes of acquiescence, the operator requires input program or parameter in feeding punching controller 20 according to drawing under manual mode in elder generation.Feeding punching controller 20 can be gone out various dissimilar holes at an arbitrary position exactly according to the input control feeding puncturing machine 21 automatic positions of regulating processed steel band, realizes automatization control.Owing to realize location automatically, can be in the mould towards a plurality of dissimilar holes, thus reduce the consumption of mould, reduce production costs, enhance productivity.
Referring to Figure 13, the buffering of the embodiment of the invention adopts buffer zone 22 modes to realize.Because the about 5m/min of input speed in the punch process, greater than moulding input speed 3m/min, so be provided with a buffer zone 22 in whole production line, too fast punching discharging makes a short pause at buffer zone, makes input speed and charging in punch process and the pause later speeds match of processed steel band when entering preliminary shaping region 23.
Referring to Fig. 1, Figure 13, the preliminary shaping of the embodiment of the invention adopts 5 pairs of preliminary shaping rollers to carry out preliminary shaping, every pair of preliminary shaping roller is divided into corresponding up and down last preliminary shaping roller and following preliminary shaping roller, go up the thickness that preliminary shaping roller and the spacing of preliminary shaping roller down are slightly less than processed steel band, go up preliminary shaping roller, down preliminary shaping roller all with tentatively shaping frame 18 flexible connections.Also design 2 pairs in preliminary shaping step and be used for spacing preliminary shaping edger roll, every pair of preliminary shaping edger roll has two edger rolls that are separately positioned on machined material travel direction (is from right to left from Fig. 1) both sides, edger roll is installed on the preliminary shaping edger roll frame 17, is provided with a preliminary shaping inlet 171 before the preliminary shaping edger roll frame 17.Before moulding, the processed steel band behind the hole that liquidated earlier carries out preliminary integer.Processed steel band is pushed (certainly preliminary shaping also can be provided with the power set that is similar to the moulding actuating unit and drive processed steel band) forward during preliminary integer by the traction of moulding actuating unit, thereby rolling smooth through the extruding of every pair of preliminary shaping roller.
Referring to Figure 13, the cooling of the embodiment of the invention gets final product by the air naturally cooling in cooling zone 26.
Referring to Fig. 1, Fig. 7, Figure 13, the shaping of the embodiment of the invention is adopting 6 pairs of shaping rollers to carry out shaping by reshaping device 11 in shaping region 27 under the control of master control computer 28, the purpose of shaping is in order to make angle steel reach better planeness and linearity, every pair of shaping roller is divided into corresponding up and down last shaping roller 111 and following shaping roller 112, last shaping roller 111 and following shaping roller 112 are installed on the shaping roller frame that is similar to horizontal roller frame 1, and the spacing between last shaping roller 111, the following shaping roller 112 is slightly less than the thickness of processed steel band.For better integer effect, first couple of processing angle β that goes up between shaping roller 111 and the following shaping roller 112 adopts 89 degree, all the other the 5 couples processing angle β that go up between shaping roller 111 and the following shaping roller 112 are 90 degree, and last shaping roller 111 is connected acquisition power with following shaping roller 112 with the shaping actuating unit.The shaping actuating unit drives reduction boxes 7 by motor 6, and reduction box 7 drives shaping reduction box 7-2, and shaping reduction box 7-2 drives in the shaping plain-barreled roll 112 under the plain-barreled roll 111 and shaping by shaping transmission shaft 19-2 again.
Referring to Fig. 1, Fig. 4, the utility model embodiment is after tempering, before the shaping, several groups of guide supports 5 and guide roller 51 have been increased after the shaping, before cutting off, four guide rollers 51 are installed on each guide support 5, and the size of guide roller 51, installation site and processing angle and workpiece to be machined are suitable.As special case, four guide rollers 51 are separately positioned on the position (referring to Fig. 4, i.e. moulding this moment is finished later workpiece to be machined both sides and become miter angle with horizontal plane) of oblique miter angle, its purpose be to lead with stable tempering, shaping after the size of workpiece.
Referring to Fig. 1, Figure 13, automatically employing automatic center punch 12 and photo-sensor are realized under the control that is breaking at master control computer 28 of the embodiment of the invention, according to angle steel mesopore signal, the quantity in hole and the angle steel length of setting that photo-sensor is sensed, automatic center punch 12 cuts off angle steel automatically according to program and parameter.The angle steel mesopore signal of sensing according to photo-sensor, the Controlling System of automatic center punch 12 is write down the Kong Weiwei system zero point in this hole, the number of photo-sensor statistics angle steel mesopore, the number in the angle steel length that the workman requires according to drawing and the hole of photo-sensor statistics in supervisory control desk, write a program or parameter to master control computer 28, automatic center punch 12 cuts off angle steel according to program and parameter, realizes automatization.
The machinable material of the inventive method has: 35～No. 85 steel, and 15～70Mn manganese steel, even can be other metallic substance; And can be processed into any width, any thickness, arbitrarily angled, equilateral or unequal-sided angle steel type product, only need correspondingly adjust processing units and procedure of processing made up and get final product.For example when less demanding, thermal treatment (Q-tempering cooling) step can be omitted.When not needing punching, feeding and punching, buffer step can be omitted, processed steel band through or directly receive the inlet of multistep molding without when shaping step (do not have preliminary) preliminary shaping position.Preliminary shaping roller, format roll, moulding edger roll, quenching well heater 13, water cooler 8, tempering well heater, guide roller 51, the size of shaping roller, working position, the big Small angle of shape when the processing angle all should move to this position with workpiece to be machined are suitable, and preliminary shaping roller, format roll, moulding edger roll, guide roller 51, shaping roller all adopt high-intensity steel rider.
Gained angle steel of the present invention is compared the advantage that is had with currently available products:
For two kinds of angle steel are compared, we deliver to the check of national standard part product quality supervision and inspection center with the angle steel of two kinds of different process, and the result of test is as follows:
Material: the angle steel of 4 45 steel (1# wherein, 4# is the angle steel of new complete processing, 2#, 3# are the angle steel of former complete processing)
Detect foundation: GB/T228-2002 " metallic substance tensile test at room temperature method "
GB/T4340.1-1999 " Vickers Hardness Test method first part: test method "
Detected result: 1#, 2# are carried out tensile test, and 3#, 4# carry out pressure test
| Interventions Requested | Detected |
||
| 1# | 2# | 3# | 4# |
| Tensile strength/MPa | 680 | 450 | / | / | |
| Hardness test HV30 | 505 | 130 | / | / | |
| Compression tests | Press down 2 cm | / | / | 1.6KN be out of shape 0.7 cm | 3.72KN distortion 0.94cm |
| Press down 4 cm | / | / | 1.78KN be out of shape 3.6 cm | 5.90KN distortion 1.40cm | |
| Press down 6 cm | / | / | 1.72KN distortion 4.95cm | 6.10KN distortion 1.92cm | |
| Press down 8 cm | / | / | 1.70KN distortion 6.94cm | 4.00KN sample fracture | |
| Press down 10 cm | / | / | 1.54KN distortion 8.89cm | / | |
As can be seen, the hardness of the 3mm angle steel that processes with this complete processing is 4 times of original product from assay, and tensile strength increases, the impelling strength of angle steel improves, and not yielding, crooked after stressed, the angle steel surface hardness can reach 40-45HRC, the planarization on surface is good, is easy to plastic-blasting.Improve with this complete equipment, explained hereafter angle steel production efficiency, personnel cost reduces, the whole production cost of reduction.
Under the situation that does not change material thickness, change the complete processing of angle steel,, obtain the novel angle steel of high strength, high tenacity by the cold-forming processing technology of angle steel.Whole cold shaping process adopts the full-automatic control of computer, realizes the processing whole process by man-machine dialogue, reduces personnel cost, raises labour efficiency, and reduces production cost.Master control computer 28 can adopt common industrial computer and control the course of processing by common control method.The simple deformation or the combination of every embodiment of the invention technical scheme and technical characterictic all should be thought to fall into protection scope of the present invention.
Claims (10)
1. continuous angle steel heat treating method, it is characterized in that: comprise successive high-frequency quenching step and temper step, workpiece to be machined moves on worktable and order process quenching well heater continuously, water cooler and tempering well heater, described high-frequency quenching adopts the quenching well heater to heat in the solid-state high frequency electric source magnetic ripple mode of shaking, by water cooler hydraulic pressure is cooled off at workpiece surface then, the quenching temperature control detection instrument of measuring workpieces surface temperature is installed on the worktable, the workpiece surface temperature that the master control computer records according to quenching temperature control detection instrument and the quenching temperature parameter of setting, automatically regulate quenching heating power and quenching temperature, the realization quenching temperature is controlled automatically, quenching heating power scope is 50KW～500KW, the quenching temperature scope is 500 ℃～1000 ℃, described water cooler is provided with an outer steel sleeve, steel bushing and some induction pipes in several, induction pipe is installed on the outer steel sleeve, the gap of the oblique workpiece travel direction between induction pipe and outer steel sleeve and the interior steel bushing is communicated with, described temper adopts the tempering well heater to heat in the solid-state high frequency electric source magnetic ripple mode of shaking, the tempering temperature control detection instrument of measuring workpieces surface temperature is installed on the worktable, the workpiece surface temperature that the master control computer records according to tempering temperature control detection instrument and the tempering temperature parameter of setting, automatically regulate tempering heating power and tempering temperature, the realization tempering temperature is controlled automatically, tempering heating power scope is 10KW～200KW, and tempering range is 200 ℃～500 ℃.
2. continuous angle steel heat treating method according to claim 1 is characterized in that: described quenching heating power is 100KW, 850 ℃ of quenching temperatures.
3. continuous angle steel heat treating method according to claim 1 is characterized in that: described water cooler is provided with four interior steel bushings and three induction pipes, thread fit between outer steel sleeve and the interior steel bushing.
4. continuous angle steel heat treating method according to claim 1 is characterized in that: described tempering heating power is 60KW, and tempering temperature is 320 ℃.
5. a corner iron manufacturing method is characterized in that: be provided with following steps: multistep molding, high-frequency quenching, temper, cooling, shaping, cut-out automatically.
6. corner iron manufacturing method according to claim 5 is characterized in that: also be provided with preliminary shaping before the multistep molding.
7. corner iron manufacturing method according to claim 5 is characterized in that: also be provided with following steps before the multistep molding: feeding and punching, buffering.
8. corner iron manufacturing method according to claim 5 is characterized in that: also be provided with following steps before the described multistep molding: feeding and punching, buffering, preliminary shaping.
9. corner iron manufacturing method according to claim 5, it is characterized in that: described multistep molding is by the substep compacting of angle steel molding device to processed steel band, thereby processed steel band progressively is pressed into angle steel, described angle steel molding device is provided with the horizontal roller frame, format roll, the edger roll frame, the moulding edger roll, format roll is provided with some right, the every pair of format roll is provided with plain-barreled roll in the moulding of coupling, plain-barreled roll under the moulding, plain-barreled roll in the moulding, plain-barreled roll and horizontal roller frame flexibly connect under the moulding, plain-barreled roll in the moulding, spacing under the moulding between the plain-barreled roll is slightly less than the thickness of machined material, plain-barreled roll in the moulding, plain-barreled roll all is connected with the moulding actuating unit under the moulding, the format roll coupling of moulding edger roll and previous stage also is installed on the edger roll frame format roll, the size of moulding edger roll, the installation site, processing angle and workpiece to be machined are suitable.
10. corner iron manufacturing method according to claim 5, it is characterized in that: described shaping employing is some carries out shaping to the shaping roller, every pair of shaping roller is provided with the last shaping roller and the following shaping roller of coupling, spacing between last shaping roller, the following shaping roller is slightly less than the thickness of processed steel band, last shaping roller is connected with the shaping actuating unit with following shaping roller, last shaping roller is connected with the shaping actuating unit with following shaping roller, and the size of shaping roller, installation site and processing angle and workpiece to be machined are suitable.
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| CN2008100590111A CN101215626B (en) | 2008-01-02 | 2008-01-02 | Continuous heat treatment method for angle steel and angle steel manufacturing method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102284848A (en) * | 2011-08-01 | 2011-12-21 | 厦门市清宏实业有限公司 | Processing equipment and method for blades |
| CN103658265A (en) * | 2013-11-28 | 2014-03-26 | 浙江鸿峰铝业有限公司 | Method for manufacturing back steel plate with curvature |
| CN111299357A (en) * | 2020-03-02 | 2020-06-19 | 翟述基 | Comprehensive quenching and shaping system for high-strength steel section hot forming |
| CN114505403A (en) * | 2022-04-19 | 2022-05-17 | 江苏兴齐智能输电科技有限公司 | Automatic angle steel punching and sizing blanking machine of electric power iron tower and punching and polishing method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2327466Y (en) * | 1998-04-28 | 1999-07-07 | 遵化市化肥厂 | Apparatus for electrode plates shaping electric dust collector |
| CN1566375A (en) * | 2003-06-19 | 2005-01-19 | 张陈再旺 | Process for thermal treatment of profiled strip |
| CN101003067A (en) * | 2006-01-19 | 2007-07-25 | 上海申翰金属制品厂 | Method and equipment for single step formation of protection cover of steel roll |
| CN101214514B (en) * | 2008-01-02 | 2010-12-08 | 嘉兴市华杰机械有限公司 | Corner iron manufacturing method |
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2008
- 2008-01-02 CN CN2008100590111A patent/CN101215626B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284848A (en) * | 2011-08-01 | 2011-12-21 | 厦门市清宏实业有限公司 | Processing equipment and method for blades |
| CN103658265A (en) * | 2013-11-28 | 2014-03-26 | 浙江鸿峰铝业有限公司 | Method for manufacturing back steel plate with curvature |
| CN111299357A (en) * | 2020-03-02 | 2020-06-19 | 翟述基 | Comprehensive quenching and shaping system for high-strength steel section hot forming |
| CN111299357B (en) * | 2020-03-02 | 2021-12-21 | 翟述基 | Comprehensive quenching and shaping system for high-strength steel section hot forming |
| CN114505403A (en) * | 2022-04-19 | 2022-05-17 | 江苏兴齐智能输电科技有限公司 | Automatic angle steel punching and sizing blanking machine of electric power iron tower and punching and polishing method |
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| CN101215626B (en) | 2010-11-24 |
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