CN109746269A - A kind of asynchronous experimental mill of monolithic band intelligence deep cooling friction speed and milling method with tension - Google Patents
A kind of asynchronous experimental mill of monolithic band intelligence deep cooling friction speed and milling method with tension Download PDFInfo
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- CN109746269A CN109746269A CN201910040405.0A CN201910040405A CN109746269A CN 109746269 A CN109746269 A CN 109746269A CN 201910040405 A CN201910040405 A CN 201910040405A CN 109746269 A CN109746269 A CN 109746269A
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Abstract
A kind of asynchronous experimental mill of monolithic band intelligence deep cooling friction speed with tension, including friction speed asynchronous rolling machine rack and insulating box, rolled piece is monolithic band, using rolled piece traffic direction as left and right directions, the left side cabinet and right side cabinet of insulating box are symmetrically fastened in friction speed asynchronous rolling machine rack from the left and right sides, the support roller and working roll for making milling train are located in case, there is left side workbench in the cabinet of left side, there is hydraulically operated fixture one on the workbench of left side, setting right side workbench in the cabinet of right side, hydraulically operated fixture two is provided on the workbench of left side, the both ends of rolled piece are clamped by hydraulically operated fixture one and hydraulically operated fixture two respectively, cooling gas and lubricating fluid input channel from left side cabinet and right side cabinet entrance and gas vent enter in case, connection is located at cooling gas and lubrication nozzle for liquid at roll gap entrance, the present invention can effectively reduce liquid nitrogen Or the usage amount of cooling nitrogen, while can realize band tension deep cooling friction speed asymmetrical rolling, and guarantee that roll work is constantly in cryogenic.
Description
Technical field
The invention belongs to metal material rolling technical field, in particular to a kind of monolithic band intelligence deep cooling with tension is different
Speed asynchronous experimental mill and milling method.
Background technique
Ultrafine grain metal material obtained the extensive concern of academia and engineering circles between more than 20 years of past, and people have opened greatly
The large plastometric set method of amount goes to study and prepare ultrafine grain metal material.Wherein, deep cooling asymmetrical rolling is wherein one of method.
Deep cooling asymmetrical rolling cools down rolled piece using liquid nitrogen or nitrogen, is then rolled at once.Meanwhile using nitrogen to rolling
Roller is cooled down.It is carried out in cooling procedure however, directlying adopt nitrogen under atmospheric environment now, nitrogen volatilizees at once, causes
The energy largely wastes, and substantially increases the manufacturing cost of deep cooling asymmetrical rolling.In addition, as deep cooling asymmetrical rolling tests tradition
It is rolled using coiled material, this causes biggish waste for laboratory research.
Summary of the invention
In order to overcome the disadvantages of the above prior art, the monolithic band intelligence with tension that the purpose of the present invention is to provide a kind of
The usage amount of liquid nitrogen or cooling nitrogen can be effectively reduced, simultaneously in the asynchronous experimental mill of energy deep cooling friction speed and milling method
Band tension may be implemented and carry out experiment asymmetrical rolling, and guarantee that roll work is constantly in cryogenic.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of asynchronous experimental mill of monolithic band intelligence deep cooling friction speed with tension, including 11 He of friction speed asynchronous rolling machine rack
Insulating box, which is characterized in that rolled piece 5 is monolithic band, and using the traffic direction of rolled piece 5 as left and right directions, the insulating box includes
Left side cabinet 2 and right side cabinet 12, left side cabinet 2 and right side cabinet 12 are symmetrically fastened on friction speed asynchronous rolling machine machine from the left and right sides
On frame 11, it is respectively positioned on upper backup roll 7, top working roll 8, bottom working roll 9 and the lower backing roll 10 of milling train in case, the left side case
Left side workbench 3 is set in body 2, is provided with hydraulically operated fixture 1 on left side workbench 3, is arranged in the right side cabinet 12
Right side workbench 15 is provided with hydraulically operated fixture 2 14 on left side workbench 15, and the both ends of the rolled piece 5 are respectively by hydraulic clip
Have one 4 and the clamping of hydraulically operated fixture 2 14, be provided with entrance and gas vent on the left side cabinet 2 and right side cabinet 12,
Cooling gas and lubricating fluid input channel enter in case from entrance and gas vent, and connection is located at the cooling at roll gap entrance
Gas and lubrication nozzle for liquid.
The entrance and gas vent include one 1 He of entrance and gas vent that 2 left side of left side cabinet is arranged in
The entrance and gas vent 2 16 of 12 right side of right side cabinet are set.
The cooling gas and lubrication nozzle for liquid include cooling gas and lubrication nozzle for liquid 1 and cooling gas and lubricating fluid
There are two nozzle 2 13, cooling gas and lubrication nozzle for liquid 1, is located at the rolled piece upper and lower sides of entrance on the left of roll gap, to
Upper working rolls and lower working rolls spray cooling gas and lubricating fluid on the left of roll gap, cooling gas and lubrication nozzle for liquid 2 14 also there are two, respectively
Positioned at the rolled piece upper and lower sides of entrance on the right side of roll gap, to roll gap right side upper working rolls and lower working rolls spray cooling gas and lubricating fluid.
The material of the monolithic band is aluminium, aluminium alloy, copper, copper alloy, titanium or titanium alloy.
The monolithic thickness of strip is 0.5~5mm, and width is 50~500mm, and length is approximately equal to rolling mill diameter.
The hydraulically operated fixture 1 and hydraulically operated fixture 2 14 are all made of the removable hydraulically operated fixture of HYDRAULIC CONTROL SYSTEM, can be with
Realization is moved under constant-tension.Rear side motor 17 and front side motor are provided in the friction speed asynchronous rolling machine rack 11
20, rear side motor 17 drives bottom working roll 9 to rotate by rear side motor linkage axis 18 and posterior lateral tooth roller box 19, and front side motor 20 is logical
It crosses front side motor linkage axis 21 and anterior lateral tooth roller box 2 drives top working roll 8 to rotate, and the revolving speed of bottom working roll 9 and top working roll 8
It is different.
The present invention also provides the deep coolings using the asynchronous experimental mill of monolithic band intelligence deep cooling friction speed with tension
Asynchronous rolling method, steps are as follows:
Step 1: rolled piece 5 is fixed on hydraulically operated fixture 1, working roll is passed through, other end is fixed on hydraulically operated fixture 2 14
On；
Step 2: left side cabinet 2 and right side cabinet 12 are fixed by screws in 11 two sides of friction speed asynchronous rolling machine rack；
Step 3: being imported by liquid nitrogen and lubricating fluid, cooling gas and lubricating fluid are imported cooling gas by pump and lubricating fluid sprays
Mouth realizes cooling and lubrication to roll, that is, top working roll 8 and bottom working roll 9；
Step 4: opening roll, zero load rotation is realized, realize that roll and rolled piece are uniformly cooled -190 DEG C~-50
℃；
Step 5: adjusting roller gap by hydraulic device, deep cooling asymmetrical rolling is realized.Using hydraulic control system, lead to
It crosses hydraulically operated fixture 1 and hydraulically operated fixture 2 14 adjusts the front and back tension of 5 operation of rolling of rolled piece, at the end of rolling is fast, stop in advance
It only rolls, prevents from hydraulically operated fixture 1 being involved in roll, damage, 8 speed V1 of top working roll in the operation of rolling: bottom working roll 9
The value range of speed V2 is 0.625~1.6；
Step 6: conversion rolling direction, adjusts volume under pressure, lower a time experiment is completed；
Step 7: repetition the 6th step 3-10 times, complete monolithic band band tension deep cooling friction speed asymmetrical rolling.
Before the 5th step deep cooling asymmetrical rolling, opening temperature detection device stops defeated when temperature reaches setting value
Enter cooling gas, when temperature is not below setting value, continues to input cooling gas.
Reduction ratio is rolled in 5th step and the 6th step operation of rolling to control 10%~35%.
Compared with prior art, the beneficial effects of the present invention are:
The present invention can save the liquid nitrogen or cooling nitrogen usage amount of cooling roll during deep cooling asymmetrical rolling, reduce
Energy consumption, while realizing monolithic band band tension deep cooling asymmetrical rolling.The asynchronous experimental mill of deep cooling friction speed of the present invention is suitable at present
The deep cooling asymmetrical rolling pilot plant test of aluminium and the single piece of material such as aluminium alloy, copper and copper alloy, titanium or titanium alloy.
Detailed description of the invention
Fig. 1 is rolling mill structure schematic diagram (main view) of the present invention.
Fig. 2 is rolling mill structure schematic diagram (left view) of the present invention.
Specific embodiment
The embodiment that the present invention will be described in detail with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, a kind of asynchronous experimental mill of monolithic band intelligence deep cooling friction speed with tension, including friction speed
Asynchronous rolling machine rack 11 and insulating box, rolled piece 5 are monolithic band, and material can close for aluminium, aluminium alloy, copper, copper alloy, titanium or titanium
Gold etc..Using the traffic direction of rolled piece 5 as left and right directions, insulating box includes left side cabinet 2 and right side cabinet 12,2 He of left side cabinet
Right side cabinet 12 is symmetrically fastened in rolling-mill housing 11 from the left and right sides, makes the upper backup roll 7, top working roll 8, lower work of milling train
Roller 9 and lower backing roll 10 are respectively positioned in case.Rear side motor 17 and front side motor 20 are provided in friction speed asynchronous rolling machine rack 11, after
Side motor 17 drives bottom working roll 9 to rotate by rear side motor linkage axis 18 and posterior lateral tooth roller box 19, before front side motor 20 passes through
Side motor linkage axis 21 and anterior lateral tooth roller box 2 drive top working roll 8 to rotate, and the revolving speed of bottom working roll 9 and top working roll 8 is not
Together.Wherein, motor and gear-box are respectively positioned on except insulating box.
Left side workbench 3 is set in left side cabinet 2, is provided with hydraulically operated fixture 1, the right side on left side workbench 3
Right side workbench 15 is set in side box body 12, hydraulically operated fixture 2 14, the both ends point of rolled piece 5 are provided on left side workbench 15
It is not clamped by hydraulically operated fixture 1 and hydraulically operated fixture 2 14.Hydraulically operated fixture 1 and hydraulically operated fixture 2 14 are full-automatic removable hydrodynamic
Press fixture.
The left side of left side cabinet 2 is provided with entrance and gas vent 1, and the right side of right side cabinet 12 is provided with pipe
Road entrance and gas vent 2 16, two-way cooling gas and lubricating fluid input channel are respectively from entrance and gas vent 1 and pipe
Road entrance and gas vent 2 16 enter in case, and connection is located at cooling gas at roll gap entrance and lubrication nozzle for liquid 1 and cold
But gas and lubrication nozzle for liquid 2 13.
There are two cooling gas and lubrication nozzle for liquid 1, the rolled piece upper and lower sides of entrance on the left of roll gap is located at, to roller
Seam left side upper working rolls and lower working rolls spray cooling gas and lubricating fluid, cooling gas and lubrication nozzle for liquid 2 14 also there are two, position respectively
The rolled piece upper and lower sides of entrance on the right side of roll gap, to roll gap right side upper working rolls and lower working rolls spray cooling gas and lubricating fluid.
Cardinal principle of the invention is to increase incubator in friction speed asynchronous rolling machine rack, realizes that asymmetrical rolling rolls in the process
Roller and atmospheric environment completely cut off, to reduce liquid nitrogen or other cooling gas usage amounts, realize that energy consumption is greatly reduced.
Meanwhile increasing track inside milling train, realize band automatic sample conveying and realizing rolling with (stock) tension, the specific steps of milling method
It is as follows:
Step 1: material, which is processed into certain size, obtains monolithic band, i.e. rolled piece 5, thickness of strip is 0.5~5mm,
Width is 50~500mm, and length is approximately equal to rolling mill diameter.
Step 2: opening insulating box, monolithic band one end is fixed on hydraulically operated fixture 1, passes through working roll, the other end
It is fixed on hydraulically operated fixture 2 14.
Step 3: insulating box is fixed by screws in 11 two sides of friction speed asynchronous rolling machine rack, realizes roll, fixture, rolls
Part 5 etc. is completely in insulating box.
Step 4: being imported by liquid nitrogen and lubricating fluid, cooling gas and lubricating fluid are imported cooling gas by pump and lubricating fluid sprays
Mouth 1 and cooling gas and lubrication nozzle for liquid 2 13 realize cooling and lubrication to roll.
Step 5: opening roll, zero load rotation is realized, realize that roll and rolled piece are uniformly cooled -190 DEG C~-50
℃。
Step 6: opening temperature detection device, stops input cooling gas when temperature reaches setting value.When temperature is not low
In setting value, continue to input cooling gas.
Step 7: adjusting roller gap by hydraulic device, deep cooling asymmetrical rolling is realized.Wherein use hydraulic control system
System adjusts the front and back tension of the rolled piece operation of rolling by hydraulically operated fixture 1 and hydraulically operated fixture 2 14.When asymmetrical rolling terminates fastly
When, stop rolling in advance, prevents from hydraulically operated fixture 1 being involved in roll, damage.Reduction ratio control is rolled in the operation of rolling to exist
10%~35%.8 speed V1 of top working roll in the operation of rolling: the value range of 9 speed V2 of bottom working roll is 0.625~1.6；
Step 8: conversion rolling direction, adjusts volume under pressure, adjustment rolling friction speed ratio completes lower a time experiment.It rolled
Reduction ratio control is rolled in journey 10%~35%.
Step 9: repetition the 8th step 3-10 times, complete monolithic band band tension deep cooling friction speed asymmetrical rolling.
In one particular embodiment of the present invention, using pure titanium band as raw material, the thickness of processing gained monolithic band
Degree is 2mm, width 200mm, length 500mm, and roll is uniformly cooled -150 DEG C when deep cooling asymmetrical rolling, the operation of rolling
In the control of each passes reduction ratio in 15%, V1:V2 value range be 1.2,5 reciprocal i.e. rolling 10 times altogether, complete
Monolithic band band tension deep cooling asymmetrical rolling, can be obtained the pure titanium monolithic band of Ultra-fine Grained.
Claims (10)
1. a kind of asynchronous experimental mill of monolithic band intelligence deep cooling friction speed with tension, including friction speed asynchronous rolling machine rack (11) and
Insulating box, which is characterized in that rolled piece (5) is monolithic band, using the traffic direction of rolled piece (5) as left and right directions, the insulating box
Including left side cabinet (2) and right side cabinet (12), left side cabinet (2) and right side cabinet (12) are symmetrically fastened on different from the left and right sides
On speed asynchronous rolling-mill housing (11), make upper backup roll (7), top working roll (8), bottom working roll (9) and the lower backing roll of milling train
(10) it is respectively positioned in case, setting left side workbench (3), left side workbench are provided with liquid on (3) in the left side cabinet (2)
It presses fixture one (4), setting right side workbench (15), left side workbench are provided with liquid on (15) in the right side cabinet (12)
It presses fixture two (14), the both ends of the rolled piece (5) are clamped by hydraulically operated fixture one (4) and hydraulically operated fixture two (14) respectively, the left side
Be provided with entrance and gas vent on side box body (2) and right side cabinet (12), cooling gas and lubricating fluid input channel from
Entrance and gas vent enter in case, and connection is located at cooling gas and lubrication nozzle for liquid at roll gap entrance.
2. the asynchronous experimental mill of monolithic band intelligence deep cooling friction speed with tension according to claim 1, which is characterized in that institute
It states entrance and gas vent includes that setting exists in the entrance and gas vent one (1) of left side cabinet (2) left side and setting
The entrance and gas vent two (16) of right side cabinet (12) right side.
3. the asynchronous experimental mill of monolithic band intelligence deep cooling friction speed with tension according to claim 1, which is characterized in that institute
It states cooling gas and lubrication nozzle for liquid includes cooling gas and lubrication nozzle for liquid one (6) and cooling gas and lubrication nozzle for liquid two
(13), there are two cooling gas and lubrications nozzle for liquid one (6), the rolled piece upper and lower sides of entrance on the left of roll gap are located at, to roller
Seam left side upper working rolls and lower working rolls spray cooling gas and lubricating fluid, cooling gas and lubrication nozzle for liquid two (14) also there are two, respectively
Positioned at the rolled piece upper and lower sides of entrance on the right side of roll gap, to roll gap right side upper working rolls and lower working rolls spray cooling gas and lubricating fluid.
4. the asynchronous experimental mill of monolithic band intelligence deep cooling friction speed with tension according to claim 1, which is characterized in that institute
The material for stating monolithic band is aluminium, aluminium alloy, copper, copper alloy, titanium or titanium alloy.
5. the asynchronous experimental mill of monolithic band intelligence deep cooling friction speed with tension according to claim 1, which is characterized in that institute
Stating monolithic thickness of strip is 0.5~5mm, and width is 50~500mm, and length is approximately equal to rolling mill diameter.
6. the asynchronous experimental mill of monolithic band intelligence deep cooling friction speed with tension according to claim 1, which is characterized in that institute
It states hydraulically operated fixture one (4) and hydraulically operated fixture two (14) is all made of the removable hydraulically operated fixture of HYDRAULIC CONTROL SYSTEM, it can be at constant
It is moved under power.
7. the asynchronous experimental mill of monolithic band intelligence deep cooling friction speed with tension according to claim 1, which is characterized in that institute
It states and is provided with rear side motor (17) and front side motor (20) in friction speed asynchronous rolling machine rack (11), rear side motor (17) passes through rear side
Motor linkage axis (18) and posterior lateral tooth roller box (19) drive bottom working roll (9) rotation, and front side motor (20) is joined by front side motor
Moving axis (21) and anterior lateral tooth roller box (2) drive top working roll (8) rotation, and the revolving speed of bottom working roll (9) and top working roll (8) is not
Together.
8. the deep cooling asymmetrical rolling side of the asynchronous experimental mill of monolithic band intelligence deep cooling friction speed described in claim 1 with tension
Method, which is characterized in that steps are as follows:
Step 1: rolled piece (5) is fixed on hydraulically operated fixture one (4), working roll is passed through, other end is fixed on hydraulically operated fixture two
(14) on；
Step 2: left side cabinet (2) and right side cabinet (12) are fixed by screws in friction speed asynchronous rolling machine rack (11) two sides；
Step 3: importing pump by liquid nitrogen and lubricating fluid imports cooling gas and lubrication nozzle for liquid for cooling gas and lubricating fluid,
Cooling and lubrication is realized to roll, that is, top working roll (8) and bottom working roll (9)；
Step 4: opening roll, zero load rotation is realized, realize that roll and rolled piece are uniformly cooled -190 DEG C~-50 DEG C；
Step 5: adjusting roller gap by hydraulic device, realize that deep cooling asymmetrical rolling passes through liquid using hydraulic control system
Fixture one (4) and hydraulically operated fixture two (14) are pressed to adjust the front and back tension of rolled piece (5) operation of rolling, at the end of rolling is fast, in advance
Stop rolling, prevents from hydraulically operated fixture one (4) being involved in roll, damage, top working roll (8) speed V1 in the operation of rolling: under
The value range of working roll (9) speed V2 is 0.625~1.6；
Step 6: conversion rolling direction, adjusts volume under pressure, lower a time experiment is completed；
Step 7: repetition the 6th step 3-10 times, complete monolithic band band tension deep cooling friction speed asymmetrical rolling.
9. deep cooling asynchronous rolling method according to claim 8, which is characterized in that the 5th step deep cooling asymmetrical rolling it
Before, opening temperature detection device stops input cooling gas when temperature reaches setting value, when temperature is not below setting value, after
Continuous input cooling gas.
10. deep cooling asynchronous rolling method according to claim 8, which is characterized in that the 5th step and the 6th step rolled
Reduction ratio is rolled in journey to control 10%~35%.
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| CN117772796A (en) * | 2024-02-23 | 2024-03-29 | 太原理工大学 | Gear connecting rod type asynchronous rolling mill |
| CN117772796B (en) * | 2024-02-23 | 2024-05-10 | 太原理工大学 | Gear connecting rod type asynchronous rolling mill |
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Application publication date: 20190514 |