CN105921809A - Sawing method of hot-rolled aluminum plates - Google Patents
Sawing method of hot-rolled aluminum plates Download PDFInfo
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- CN105921809A CN105921809A CN201610378760.5A CN201610378760A CN105921809A CN 105921809 A CN105921809 A CN 105921809A CN 201610378760 A CN201610378760 A CN 201610378760A CN 105921809 A CN105921809 A CN 105921809A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/003—Sawing machines or sawing devices with circular saw blades or with friction saw discs for particular purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D59/00—Accessories specially designed for sawing machines or sawing devices
- B23D59/02—Devices for lubricating or cooling circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/0046—Devices for removing chips by sucking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
The invention discloses a sawing method of hot-rolled aluminum plates. The sawing method includes the steps of firstly, mounting improved hot-rolled aluminum plate sawing machine saw blades; secondly, conducting preparation before a hot-rolling sawing machine is started; thirdly, controlling an oil mist lubricating system; fourthly, starting a roller bed driving device of the hot-rolling sawing machine; fifthly, controlling the circumferential speed of alloy saw blades; sixthly, starting an aluminum chip recovery device; and seventhly, placing a hot-rolled aluminum plate to be cut. By means of the sawing method of the hot-rolled aluminum plates, the problems of notch end face inclination, flattening and curving when a heavy-duty shearing machine is used for shearing aluminum plates can be effectively solved, sawing cost of hot-rolled aluminum plate sawing is greatly lowered, the smoothness and flatness of sawn end faces are improved, the labor intensity of operators is lowered, and production efficiency of aluminum plate sawing is improved; and meanwhile, aluminum chips in the aluminum plate sawing process are effectively recovered, so that economic benefits are increased.
Description
Technical field
The present invention relates to hot rolled aluminium processing technique field, particularly relate to the sawing method of a kind of hot rolled aluminium.
Background technology
The thickness of hot rolled aluminium is mainly with between 1.0 ~ 200, and industry is always perplexed in the blanking cutting of hot rolled aluminium
In technical barrier, easily there is out-of-flatness, the situation flattened, bend in the section being primarily present cutting；Middle thickness exists
The middle thick aluminium sheet of more than 20, after rolling, carries out shearing blanking with heavy-duty shears under high-temperature condition, and after shearing, otch can produce
Raw obvious plagiocephaly, flatten and bend, beyond the required margin of tolerance；Need follow-up under the state of colding pressing, by two side pressures
Flat, the cropping saw of bending cuts away；To go out the cut deal of high-quality, in addition it is also necessary to the sheet material that shearing is caused by increase straightener is curved
Song, distortion carries out leveling；Increase unnecessary manufacturing procedure since so, be unfavorable for the raising of production efficiency, add
Equipment and the input of cost of labor, also add the labor intensity of operator；Inventor's many defects based on prior art
Invent the online sawing method of a kind of hot rolled aluminium and can solve the problem that the problem that prior art exists, and a upper hot saw ratio is upper
The expense of one heavy-duty shears is much lower, and it is more much lower than the expense changing shear knife to change saw blade, greatly reduces
The cutting cost of cutting hot rolled aluminium；Realize hot rolled aluminium sawing end face, smooth, smooth, improve yield rate, oil gas is micro-simultaneously
The mode of amount lubrication, aluminum bits can reclaim, and improves the recycling of aluminium scrap bits, adds considerable economic benefit.
Summary of the invention
The invention aims to solve the deficiency that above-mentioned technical problem exists, it is provided that the sawing side of a kind of hot rolled aluminium
Method, the sawing method of this hot rolled aluminium uses planer-type, mainly passes through the adjustment of the space width ladder flat tooth and changes saw blade
Peripheral speed, realizes the purpose of the present invention, and present invention process is simple, simplifies the processing technique of sawing hot rolled aluminium, it is achieved
Sawing of hot rolled aluminium just can reach hot rolled aluminium sawing end face, smooth, technological requirement smooth, carrot-free and permission
The margin of tolerance.
The step of the sawing method of the used hot rolled aluminium of the present invention is as follows:
Hot rolled aluminium sawing machine saw blade after step one, installation improvement: the hot rolled aluminium sawing machine saw blade after improvement uses alloy
Tool steel, the sawtooth of saw blade uses ladder flat tooth, and space width is 55 ~ 60mm, and is arranged on hot rolled aluminium sawing machine；
Preparation before the start of step 2, hot rolling sawing machine: check that the roller-way that advances of hot rolling sawing machine is in good state, check
The degree of wear of metal saw blade, was accomplished by changing saw blade when the sawtooth of alloy saw blade may wear at the 2/3 of sawtooth when；
Step 3, the control of oil mist system: check that oil mist system is in good state, opens fog lubrication simultaneously
System makes the fountain height of mist of oil control at 0.4 ~ 0.5ml/min, and gas pressure controls at 0.4 ~ 0.7MPa；
Step 4, unlatching hot rolling sawing machine roller-way driving means: be in by the inspection of step a pair hot rolling sawing machine roller-way
In the case of kilter, start hot rolling sawing machine roller-way driving means and make hot rolling sawing machine roller-way be in uniform rotation, rotate
Speed controlling is at 4 ~ 5m/min；
Step 5, the control of alloy saw blade peripheral speed: alloy saw blade peripheral speed controls at 60 ~ 80m/s；
Step 6, unlatching aluminum bits retracting device: the capital equipment of aluminum bits retracting device is air exhauster, by the work of air exhauster suction
Aluminum bits are drawn onto in the retracting device of aluminum bits through air draft pipe with making aluminum bits；The power selection of air exhauster is 18.5 ~ 20kw, wind
Amount controls at 4600 ~ 6762m3/ h, the rotation speed of fan of air exhauster controls at 2500 ~ 2900r/min；
Step 7, place hot rolled aluminium to be cut: when the equipment in step 3, step 4, step 6 is in what normal boot-strap ran
The when of state, will the hot rolled aluminium of sawing be placed on above the roller-way of hot rolling sawing machine, by hot rolling sawing machine roller-way
At the uniform velocity rotation, drive hot rolled aluminium move to the position of sawing alloy saw blade from the feeding end of hot rolling sawing machine, hot rolled aluminium
Feed speed control at 3 ~ 4m/min, when hot rolled aluminium moves to positioning rule when, roller-way stops operating, and at this moment starts saw
Cutting machine saw blade, sawing machine saw blade controls at 0.7 ~ 1 m/min from hot rolled aluminium traverse feed, the feed speed of sawing machine saw blade；
Aluminium sheet temperature after hot rolling technology carries out sawing to hot rolled aluminium when being 100 ~ 300 DEG C, the thickness choosing of hot rolled aluminium
Select the middle thick hot rolled aluminium of 20 ~ 200.
Wherein in step one, by analyzing and repeatedly testing, the space width of original saw blade at the saw blade of 15 ~ 25mm, change
Entering for space width is 55 ~ 60mm；On the one hand, the space width of usual saw blade is at 15 ~ 25mm, but finds saw blade heating in sawing process
Seriously, by analyzing and repeatedly testing, finding out saw blade heating cause, space width is too small at 15 ~ 25mm, and sawtooth is overstocked, between cog
Hold bits amount to diminish, easily cause saw blade to generate heat；Additionally sawtooth is too much, and if amount of feeding mismate, the amount of cutting of per tooth is little,
The friction of cutting edge and workpiece can be aggravated, cause saw blade to generate heat, affect the service life of blade；Saw when alloy through experiment repeatedly
The jaggy pitch of sheet controls 55 ~ 60mm when, can not only effectively reduce the caloric value of sawtooth, and can also improve sawtooth
Between appearance bits amount, also advantageously improve the cutting-rate of sawing aluminium sheet simultaneously；On the other hand, through substantial amounts of experiment repeatedly,
In order to improve the life-span of saw blade, change the material carbon tool steel of matrix into alloy tool steel, because carbon tool steel is in temperature
When 200 DEG C ~ 250 DEG C, its hardness and wearability drastically decline, and thermal deformation is big, is not suitable for sawing heat material, and alloy tool steel is heat-resisting
Property, wearability is good, and heat-resistant deforming temperature is at 300 DEG C ~ 400 DEG C；The saw blade that alloy tool steel is made disclosure satisfy that aluminium sheet 100 ~
Under the state of temperature of 300 DEG C, the requirement to thermostability, thus band substantially increases the service life of saw blade.
Wherein in step one, the sawtooth selecting saw blade is ladder flat tooth, and the main purpose of do so is to prevent saw blade from existing
Aluminum bits are occurred to adhere on sawtooth, because hot rolled aluminium is in the case of temperature is 100 ~ 300 DEG C during sawing aluminium sheet
Ductility be best, the viscosity of its aluminium sheet is the biggest, ladder flat tooth sawtooth one high and one low structure design, at sawing aluminium sheet
During be possible to prevent aluminum bits stick in above sawtooth.
Wherein in step 2, check that the propelling roller-way of hot rolling sawing machine is in shape, check the abrasion of metal saw blade
Degree, was accomplished by changing saw blade when the sawtooth of alloy saw blade may wear at the 2/3 of sawtooth when；The main purpose of do so is
Whether propelling roller-way and alloy saw blade in order to check hot rolling sawing machine are in good state, in order to ensure hot rolling sawing machine
Normal operation；Alloy saw blade belongs to consumable accessory during the sawing of hot rolled aluminium, when the sawtooth of alloy saw blade may wear to
The when of at the 2/3 of sawtooth, sawtooth is the most subject to severe abrasion, and aluminium sheet sawing end face will be made to produce a lot of burrs, sternly
Ghost image ring aluminium sheet sawing end face smooth neatly, the yield rate of product is by serious downslide, thus when the saw of alloy saw blade
Odontotripsis is to the alloy saw blade the most more renewed the when of at the 2/3 of sawtooth.
Wherein in step 3, oil mist system makes the fountain height of mist of oil control at 0.4 ~ 0.5ml/min, gas pressure control
System is at 0.4 ~ 0.7MPa；Oil mist system is mainly lubricating oil atomization by the effect of gas pressure, is sprayed on alloy saw
The surface of sheet, to the effect cooling down alloy saw blade, lower the temperature and lubricating in hot rolled aluminium sawing process；Pressure when gas
Control 0.4 ~ 0.7MPa when could will lubrication emulsion height atomization, simultaneously atomized lubrication fluid fountain height control
0.4 ~ 0.5ml/min when, lubricating oil just can be attached to the surface of sawing sheet in the case of atomization and form one layer not
Resistant to elevated temperatures lubrication oxide layer easy to fall off, primarily serves lubrication, the effect of cooling, extends the service life of alloy sawing sheet.
Wherein in step 4, making hot rolling sawing machine roller-way be in uniform rotation, velocity of rotation controls at 4 ~ 5m/min；So
The main purpose done makes hot rolling sawing machine roller-way be in uniform rotation thus realizes aluminium sheet on hot rolling sawing machine roller-way
Stability, the high-precision sawing for aluminium sheet creates conditions, because aluminium sheet wants to make, the end face of sawing is smooth, smooth, impulse-free robustness,
The stability of aluminium sheet will be improved.
Wherein in step 5, select the jaggy pitch in step one in the case of 55 ~ 60mm alloy ladder flat tooth saw blade, close
Gold saw blade peripheral speed controls at 60 ~ 80m/s；When the peripheral speed of sawing heat material uses the peripheral speed of sawing room temperature aluminium sheet it is
50 m/s, half when feed speed can only achieve room temperature sawing, it is unfavorable for improving production efficiency, if desired improves saw blade sawing effect
Rate, therefore choosing of saw blade peripheral speed and feed speed is most important, if improving saw blade peripheral speed, can be in same feeding speed
Under conditions of degree, reduce the depth of cut of each sawtooth institute sawing, thus reduce the stress of each sawtooth；In other words, if
The load that each sawtooth can bear is certain, and the feed speed of saw blade is certain, then the peripheral speed improving saw blade can be to improve
Cutting-rate creates conditions, and i.e. can improve productivity ratio；Thus through a large amount of experiments repeatedly, when the load that sawtooth can bear
Lotus is certain, the feed speed of saw blade certain in the case of, jaggy pitch at 55 ~ 60mm, alloy saw blade peripheral speed controls 60 ~
The when of 80m/s, the efficiency of sawing aluminium sheet is the highest, it is possible to reduce the caloric value of saw blade, improves the smoothness of sawing end face,
Reduce the burr of sawing end face, thoroughly solve the generation of sawing face deformation phenomenon.
Wherein in step 6, the capital equipment of aluminum bits retracting device is air exhauster, by the effect of the powerful suction of air exhauster
Aluminum bits are made through air draft pipe, aluminum bits to be drawn onto in the retracting device of aluminum bits；The power selection of air exhauster is 18.5 ~ 20kw, air quantity
Control at 4600 ~ 6762m3/ h, the rotation speed of fan of air exhauster controls at 2500 ~ 2900r/min；So main purpose of design is
In order to make air exhauster have enough convulsion pressure, the aluminum during sawing aluminium sheet is considered to be worth doing in the retracting device being extracted into aluminum bits, only
Have when the power of air exhauster is 18.5 ~ 20kw, and Boiler pressure control is at 4600 ~ 6762m3/ h, the rotation speed of fan of air exhauster controls
The aluminum bits sticked to during sawing aluminium sheet on saw blade sawtooth could be taken up the when of 2500 ~ 2900r/min, be allowed to be in
The state suspended, considers to be worth doing the aluminum being attached to surface of aluminum plate simultaneously, and aluminum bits are pumped to returning of aluminum bits by the draft utilizing air exhauster powerful
In receiving apparatus.
Wherein in step 7, when the equipment in step 3, step 4, step 6 be in normal boot-strap run state time
Wait, will the hot rolled aluminium of sawing be placed on above the roller-way of hot rolling sawing machine, by the at the uniform velocity rotation of hot rolling sawing machine roller-way
Turn, drive hot rolled aluminium to move to the position of sawing alloy saw blade from the feeding end of hot rolling sawing machine, the feeding speed of hot rolled aluminium
Degree controls at 3 ~ 4m/min, and when hot rolled aluminium moves to positioning rule when, roller-way stops operating, and at this moment starts sawing machine saw
Sheet, sawing machine saw blade controls at 0.7 ~ 1 m/min from hot rolled aluminium traverse feed, the feed speed of sawing machine saw blade；In hot rolling
Under the state that aluminium sheet temperature after technique is 100 ~ 300 DEG C, hot rolled aluminium being carried out sawing, the thickness of hot rolled aluminium selects 20 ~
The middle thick hot rolled aluminium of 200；The main purpose of do so is in time the aluminium sheet of high temperature after rolling to be carried out sawing, it is not necessary to
Sawing after the cooling to high temperature aluminium sheet, substantially reduces the time of sawing aluminium sheet, improves the production efficiency of aluminium sheet sawing.
Beneficial effects of the present invention: the present invention provides the sawing method of a kind of hot rolled aluminium, the sawing of this hot rolled aluminium
Method technique is simple, simplifies the processing technique of sawing hot rolled aluminium, it is possible to solves heavy-duty shears and shears cutting of aluminium sheet appearance
Mouth end face plagiocephaly, the problem flattened and bend, greatly reduce the cutting cost of sawing hot rolled aluminium, improve sawing end face
Smoothness and flatness, reduce the labor intensity of operator, improves the production efficiency of sawing aluminium sheet, simultaneously efficient recovery
Aluminum bits during sawing aluminium sheet, improve economic benefit.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further, these embodiments be merely to illustrate the present invention rather than
Limit the scope of the present invention.
Embodiment 1
The step of the sawing method of a kind of hot rolled aluminium is as follows:
Hot rolled aluminium sawing machine saw blade after step one, installation improvement: the hot rolled aluminium sawing machine saw blade after improvement uses alloy
Tool steel, the sawtooth of saw blade uses ladder flat tooth, and space width is 55mm, and is arranged on hot rolled aluminium sawing machine；
Preparation before the start of step 2, hot rolling sawing machine: check that the roller-way that advances of hot rolling sawing machine is in good state, check
The degree of wear of metal saw blade, was accomplished by changing saw blade when the sawtooth of alloy saw blade may wear at the 2/3 of sawtooth when；
Step 3, the control of oil mist system: check that oil mist system is in good state, opens fog lubrication simultaneously
System makes the fountain height of mist of oil control at 0.4ml/min, and gas pressure controls at 0.4MPa；
Step 4, unlatching hot rolling sawing machine roller-way driving means: be in by the inspection of step a pair hot rolling sawing machine roller-way
In the case of kilter, start hot rolling sawing machine roller-way driving means and make hot rolling sawing machine roller-way be in uniform rotation, rotate
Speed controlling is at 4m/min；
Step 5, the control of alloy saw blade peripheral speed: alloy saw blade peripheral speed controls at 60m/s；
Step 6, unlatching aluminum bits retracting device: the capital equipment of aluminum bits retracting device is air exhauster, by the work of air exhauster suction
Aluminum bits are drawn onto in the retracting device of aluminum bits through air draft pipe with making aluminum bits；The power selection of air exhauster is 18.5kw, air quantity
Control at 4600m3/ h, the rotation speed of fan of air exhauster controls at 2500r/min；
Step 7, place hot rolled aluminium to be cut: when the equipment in step 3, step 4, step 6 is in what normal boot-strap ran
The when of state, will the hot rolled aluminium of sawing be placed on above the roller-way of hot rolling sawing machine, by hot rolling sawing machine roller-way
At the uniform velocity rotation, drive hot rolled aluminium move to the position of sawing alloy saw blade from the feeding end of hot rolling sawing machine, hot rolled aluminium
Feed speed control at 3m/min, when hot rolled aluminium moves to positioning rule when, roller-way stops operating, and at this moment starts sawing
Machine saw blade, sawing machine saw blade controls at 0.7 m/min from hot rolled aluminium traverse feed, the feed speed of sawing machine saw blade；In heat
Under the state that aluminium sheet temperature after roll process is 100 DEG C, hot rolled aluminium being carried out sawing, the thickness of hot rolled aluminium selects 20
Middle thick hot rolled aluminium.
When the jaggy pitch of saw blade is at 55mm, the peripheral speed of saw blade is 60m/s when, and saw blade heating is the tightest
Weight, sawtooth has more serious viscous aluminum phenomenon；The life-span of saw blade can only achieve sawing 200m2Middle thick hot rolled aluminium, it is necessary to
The saw blade more renewed, sawing is that noise is relatively big, and the end face after sawing has more serious burr and rough.
Embodiment 2
The step of the sawing method of a kind of hot rolled aluminium is as follows:
Hot rolled aluminium sawing machine saw blade after step one, installation improvement: the hot rolled aluminium sawing machine saw blade after improvement uses alloy
Tool steel, the sawtooth of saw blade uses ladder flat tooth, and space width is 58mm, and is arranged on hot rolled aluminium sawing machine；
Preparation before the start of step 2, hot rolling sawing machine: check that the roller-way that advances of hot rolling sawing machine is in good state, check
The degree of wear of metal saw blade, was accomplished by changing saw blade when the sawtooth of alloy saw blade may wear at the 2/3 of sawtooth when；
Step 3, the control of oil mist system: check that oil mist system is in good state, opens fog lubrication simultaneously
System makes the fountain height of mist of oil control at 0.45ml/min, and gas pressure controls at 0.6MPa；
Step 4, unlatching hot rolling sawing machine roller-way driving means: be in by the inspection of step a pair hot rolling sawing machine roller-way
In the case of kilter, start hot rolling sawing machine roller-way driving means and make hot rolling sawing machine roller-way be in uniform rotation, rotate
Speed controlling is at 4.5m/min；
Step 5, the control of alloy saw blade peripheral speed: alloy saw blade peripheral speed controls at 70m/s；
Step 6, unlatching aluminum bits retracting device: the capital equipment of aluminum bits retracting device is air exhauster, by the work of air exhauster suction
Aluminum bits are drawn onto in the retracting device of aluminum bits through air draft pipe with making aluminum bits；The power selection of air exhauster is 19kw, air quantity control
System is at 5200m3/ h, the rotation speed of fan of air exhauster controls at 2700r/min；
Step 7, place hot rolled aluminium to be cut: when the equipment in step 3, step 4, step 6 is in what normal boot-strap ran
The when of state, will the hot rolled aluminium of sawing be placed on above the roller-way of hot rolling sawing machine, by hot rolling sawing machine roller-way
At the uniform velocity rotation, drive hot rolled aluminium move to the position of sawing alloy saw blade from the feeding end of hot rolling sawing machine, hot rolled aluminium
Feed speed control at 3.5m/min, when hot rolled aluminium moves to positioning rule when, roller-way stops operating, and at this moment starts saw
Cutting machine saw blade, sawing machine saw blade controls at 0.8 m/min from hot rolled aluminium traverse feed, the feed speed of sawing machine saw blade；?
Under the state that aluminium sheet temperature after hot rolling technology is 200 DEG C, hot rolled aluminium being carried out sawing, the thickness of hot rolled aluminium selects 120
Middle thick hot rolled aluminium.
When the jaggy pitch of saw blade is at 58mm, the peripheral speed of saw blade is 70m/s when, and saw blade fever phenomenon subtracts
Gently, sawtooth has slight viscous aluminum phenomenon；The life-span of saw blade can only achieve sawing 300m2Middle thick hot rolled aluminium, it is necessary to more
The saw blade renewed, sawing is that noise reduces, and the end face after sawing has slight burr and rough.
Embodiment 3
The step of the sawing method of a kind of hot rolled aluminium is as follows:
Hot rolled aluminium sawing machine saw blade after step one, installation improvement: the hot rolled aluminium sawing machine saw blade after improvement uses alloy
Tool steel, the sawtooth of saw blade uses ladder flat tooth, and space width is 60mm, and is arranged on hot rolled aluminium sawing machine；
Preparation before the start of step 2, hot rolling sawing machine: check that the roller-way that advances of hot rolling sawing machine is in good state, check
The degree of wear of metal saw blade, was accomplished by changing saw blade when the sawtooth of alloy saw blade may wear at the 2/3 of sawtooth when；
Step 3, the control of oil mist system: check that oil mist system is in good state, opens fog lubrication simultaneously
System makes the fountain height of mist of oil control at 0.5ml/min, and gas pressure controls at 0.7MPa；
Step 4, unlatching hot rolling sawing machine roller-way driving means: be in by the inspection of step a pair hot rolling sawing machine roller-way
In the case of kilter, start hot rolling sawing machine roller-way driving means and make hot rolling sawing machine roller-way be in uniform rotation, rotate
Speed controlling is at 5m/min；
Step 5, the control of alloy saw blade peripheral speed: alloy saw blade peripheral speed controls at 80m/s；
Step 6, unlatching aluminum bits retracting device: the capital equipment of aluminum bits retracting device is air exhauster, by the work of air exhauster suction
Aluminum bits are drawn onto in the retracting device of aluminum bits through air draft pipe with making aluminum bits；The power selection of air exhauster is 20kw, air quantity control
System is at 6762m3/ h, the rotation speed of fan of air exhauster controls at 2900r/min；
Step 7, place hot rolled aluminium to be cut: when the equipment in step 3, step 4, step 6 is in what normal boot-strap ran
The when of state, will the hot rolled aluminium of sawing be placed on above the roller-way of hot rolling sawing machine, by hot rolling sawing machine roller-way
At the uniform velocity rotation, drive hot rolled aluminium move to the position of sawing alloy saw blade from the feeding end of hot rolling sawing machine, hot rolled aluminium
Feed speed control at 4m/min, when hot rolled aluminium moves to positioning rule when, roller-way stops operating, and at this moment starts sawing
Machine saw blade, sawing machine saw blade controls at 1 m/min from hot rolled aluminium traverse feed, the feed speed of sawing machine saw blade；In hot rolling
Under the state that aluminium sheet temperature after technique is 300 DEG C, hot rolled aluminium being carried out sawing, the thickness of hot rolled aluminium selects in 200
Thick hot rolled aluminium.
When the jaggy pitch of saw blade is at 60mm, the peripheral speed of saw blade is 80m/s when, and saw blade caloric value is minimum,
Viscous aluminum phenomenon is there is not on sawtooth；The life-span of saw blade can reach sawing 400m2Middle thick hot rolled aluminium, it is necessary to the saw more renewed
Sheet, during sawing, noise is minimum, and the end face after sawing is smooth and flatness high.
Claims (4)
1. the sawing method of a hot rolled aluminium, it is characterised in that: the hot rolled aluminium sawing machine after step one, installation improve is sawed
Sheet: the hot rolled aluminium sawing machine saw bit matrix material after improvement uses alloy tool steel, is arranged on hot rolled aluminium sawing machine；Step
Preparation before rapid two, hot rolling sawing machine start: check that the roller-way that advances of hot rolling sawing machine is in good state, check metal saw
The degree of wear of sheet, was accomplished by changing saw blade when the sawtooth of alloy saw blade may wear at the 2/3 of sawtooth when；Step 3, oil
The control of mist lubricating system: check that oil mist system is in good state simultaneously, open oil mist system and make mist of oil
Fountain height controls at 0.4 ~ 0.5ml/min, and gas pressure controls at 0.4 ~ 0.7MPa；Step 4, unlatching hot rolling sawing machine roller-way
Driving means: by the inspection of step a pair hot rolling sawing machine roller-way in the case of in shape, starts hot rolling sawing
Machine roller-way driving means makes hot rolling sawing machine roller-way be in uniform rotation, and velocity of rotation controls at 4 ~ 5m/min；Step 5, alloy
The control of saw blade peripheral speed: alloy saw blade peripheral speed controls at 60 ~ 80m/s；Step 6, unlatching aluminum bits retracting device: aluminum
The capital equipment of bits retracting device is air exhauster, makes aluminum bits through air draft pipe, aluminum bits be drawn onto by the effect of air exhauster suction
In the retracting device of aluminum bits；The power selection of air exhauster is 18.5 ~ 20kw, and Boiler pressure control is at 4600 ~ 6762m3/ h, air exhauster
Rotation speed of fan controls at 2500 ~ 2900r/min；Step 7, place hot rolled aluminium to be cut: when in step 3, step 4, step 6
Equipment when be in the state that normal boot-strap runs, the hot rolled aluminium of sawing being placed on the roller-way of hot rolling sawing machine
Above, by the at the uniform velocity rotation of hot rolling sawing machine roller-way, drive hot rolled aluminium from the feeding end of hot rolling sawing machine to sawing alloy
The position of saw blade is moved, and the feed speed of hot rolled aluminium controls at 3 ~ 4m/min, when hot rolled aluminium moves to positioning rule when,
Roller-way stops operating, and at this moment starts sawing machine saw blade, and sawing machine saw blade is from hot rolled aluminium traverse feed, the feeding of sawing machine saw blade
Speed controlling is at 0.7 ~ 1 m/min；When the aluminium sheet temperature after hot rolling technology 100 ~ 300 DEG C, hot rolled aluminium is sawed
Cutting, the thickness of hot rolled aluminium selects the middle thick hot rolled aluminium of 20 ~ 200.
The sawing method of a kind of hot rolled aluminium the most according to claim 1, it is characterised in that: the saw of the saw blade in step one
Tooth uses ladder flat tooth.
The sawing method of a kind of hot rolled aluminium the most according to claim 1, it is characterised in that: the jaggy pitch in step one
It is set in 55 ~ 60mm.
The sawing method of a kind of hot rolled aluminium the most according to claim 1, it is characterised in that: the alloy saw blade in step 5
Peripheral speed controls at 80m/s.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112893998A (en) * | 2020-12-29 | 2021-06-04 | 飞马智科信息技术股份有限公司 | Hot saw cutting control method |
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| JP4091910B2 (en) * | 2001-05-30 | 2008-05-28 | 新日本製鐵株式会社 | Rail manufacturing method and manufacturing equipment |
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| CN112893998A (en) * | 2020-12-29 | 2021-06-04 | 飞马智科信息技术股份有限公司 | Hot saw cutting control method |
| CN112893998B (en) * | 2020-12-29 | 2024-02-02 | 宝信软件(安徽)股份有限公司 | Hot saw cutting control method |
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| CN105921809B (en) | 2018-01-26 |
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