CN103993305B - Roller surface processing unit and technique - Google Patents
Roller surface processing unit and technique Download PDFInfo
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- CN103993305B CN103993305B CN201410242186.1A CN201410242186A CN103993305B CN 103993305 B CN103993305 B CN 103993305B CN 201410242186 A CN201410242186 A CN 201410242186A CN 103993305 B CN103993305 B CN 103993305B
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Abstract
The present invention provides a kind of roller surface processing unit and technique, and the device includes：Treatment trough, for accommodating the oxidation solution that oxidation reaction occurs with roller surface；Heater, in the treatment trough or near the treatment trough, for heating the oxidation solution in the treatment trough；Support meanss, positioned at the treatment trough side, for the roll neck of back-up roll.The present invention provides a kind of roller surface processing unit and technique, and the oxidation film layer of even compact can be generated in roller surface, its composition and tissue is different from blank, so as to effectively reduce the coefficient of friction between roll and blank.
Description
Technical field
The present invention relates to metallurgical machinery equipment technical field, more particularly to a kind of roller surface processing unit and technique.
Background technology
Metal, such as steel, in hot rolling production process, the position of blank under the condition of high temperature and roll contact is due to huge
Pressure and violent rubbing action, part metals on blank can and roller surface produce adhesion, depart from this part metals
Blank simultaneously forms steel cuttings and is bonded on roll (be commonly called as steel bonding), and steel cuttings is cooled down rapidly in the presence of roll and milling train cooling water, firmly
Degree drastically becomes big with the cooling of steel cuttings, in the subsequent operation of rolling, be stained with the roll of steel cuttings blank surface can be extruded it is recessed
Hole or groove, particularly after the roll of finisher is stained with steel cuttings, will have a strong impact on the surface quality of finished product, or even cause to give up
Product.
It is excessive that roll is easily stained with the coefficient of friction that steel cuttings is primarily due between roll and high temperature blank, makes the operation of rolling
The Frotteurism of middle roll and blank is changed into sticking friction from sliding friction.In hot rolling technology field, around how reducing roll
Coefficient of friction this problem and between blank, occurs in that many solutions.
At present, conventional method is the installation nozzle at inlet of rolling mill, to water under high pressure is sprayed between roll and blank, makes hydraulic pressure
Floor height pressure moisture film is formed in the gap of roll and blank, the friction between roll and blank is reduced using the lubrication of moisture film
Coefficient, the method can largely mitigate roll steel bonding, improve the surface quality of product, but because the medium for using is high pressure
Water, can drastically reduce the temperature of blank while lubrication, increase the resistance of deformation of blank, and draught pressure and milling train energy consumption increase
Plus, when the shaped steel of thinner thickness is produced, the problem is especially protruded, or even has a strong impact on being normally carried out for production.
In order to mitigate the adverse effect that above-mentioned water under high pressure lubrication belt comes, occur in that and replace the solution party of water under high pressure with emulsion
Machine oil and water are mixed into emulsion by method, the method according to certain ratio, in order to not reduce blank as far as possible while lubrication
Temperature, generally using smaller pressure, sprayed between roll and blank compared with low discharge, the method although realize reduce roll
And between blank while coefficient of friction, the temperature of blank will not be significantly reduced, but cause rising and the water of lubrication cost
Pollution.
Under normal circumstances, the composition of material or tissue are closer to mutual coefficient of friction is bigger, therefore hot rolling is produced
When, it is very big to be all coefficient of friction between the roll of steel and blank, is susceptible to steel bonding.And the storeroom of heterogeneity or tissue rubs
Wipe coefficient then smaller.According to this principle, have using the processing method to roller surface spray-on coating, the method is rolled by change
The composition of roller surface is different from blank so as to reduce coefficient of friction, but spray-on coating facture exist coating adhesion it is poor,
The shortcomings of hole and high cost.Laser treatment rule carries out high-temperature process by laser beam to roller surface, makes roller surface
Form quenching structure and be different from blank so as to reduce coefficient of friction, but there is roller surface tissue in laser quenching processing method
Uneven, coefficient of friction is inconsistent, the problems such as the excessive production of roller surface hardness repairs difficult after terminating.
The content of the invention
It is an object of the invention to provide a kind of roller surface handling process, to solve to cause base using lubricant medium at present
Material temperature drop or the problem of pollution environment.
Another object of the present invention is to provide a kind of roller surface processing unit, to solve the above problems and preferably real
Apply above-mentioned technique.
In order to solve the above problems, the technical scheme of the roller surface processing unit that the present invention is provided is as follows：
A kind of roller surface processing unit, it includes：Treatment trough, for accommodating the oxygen that oxidation reaction occurs with roller surface
Change liquid；Heater, in the treatment trough or near the treatment trough, for heating the oxidation in the treatment trough
Liquid；Support meanss, positioned at the treatment trough side, for the roll neck of back-up roll.
According to a kind of preferred embodiment of above-mentioned roller surface processing unit, the treatment trough is in the box of opening upwards
Structure, and treatment trough top is additionally provided with stay-warm case, to keep oxidation solution temperature.
According to a kind of preferred embodiment of above-mentioned roller surface processing unit, the treatment trough top edge both sides are provided with a left side
Right corresponding semicircular notch；The stay-warm case is also the box-structure that Open Side Down, and the stay-warm case lower edge both sides
It is provided with the corresponding semicircular notch in left and right, the notch of the notch of the treatment trough and the stay-warm case is corresponded to respectively, to pass through
The roll neck of roll.
According to a kind of preferred embodiment of above-mentioned roller surface processing unit, in the both sides of the notch of the treatment trough,
The treatment trough top edge is outward extended with horizontal flanges；In the notch both sides of the stay-warm case, the edge of the stay-warm case
It is outward extended with horizontal flanges；The horizontal flanges of the stay-warm case are located at the horizontal flanges top of the treatment trough.
According to a kind of preferred embodiment of above-mentioned roller surface processing unit, the heater is to be positioned over the place
Electrical heating block in reason groove.
According to a kind of preferred embodiment of above-mentioned roller surface processing unit, the support meanss include：Support, is located at
The treatment trough both sides；Support roller, including active support roller, driven support roller, the active support roller, driven support roller are mutual
It is parallel and can horizontally rotate on the support so that the roll neck of roll is arranged on the active support roller, driven support
Between roller；Motor, is connected with the active support roller, to drive the active support roller to rotate.
In order to solve the above problems, the technical scheme of the roller surface handling process that the present invention is provided is as follows：
A kind of roller surface handling process, it is comprised the following steps：It is formulated for forming oxidation film layer in roller surface
Oxidation solution；Heated oxidizing fluid；Using the roll surface of the oxidation solution preheated nip roll of heating；Preheating is finished, and makes the roller of oxidation solution and roll
There is oxidation reaction in face；Reaction terminates, and removes and clear up roll.
According to a kind of preferred embodiment of above-mentioned roller surface handling process, oxidation solution includes sodium nitrate, hydroxide
Sodium, natrium nitrosum, water, ferroso-ferric oxide oxidation film layer, and the sodium nitrate, NaOH, nitrous are generated with roller surface
Sour sodium, the weight ratio of water are 1~2:11~13:3~4:20~25.
According to a kind of preferred embodiment of above-mentioned roller surface handling process, using the oxidation solution preheated nip roll for heating
During roll surface, the 1/4-1/3's of roll surface is immersed in oxidation solution, and is rotated with the first rotating speed in oxidation solution；Oxidation solution
For between 130-160 DEG C, the first rotating speed is more than or equal to 0.2m/s, preheating time is 0.5-1 hours to heating-up temperature.
According to a kind of preferred embodiment of above-mentioned roller surface handling process, the roll surface of oxidation solution and roll is aoxidized
During reaction, roll is rotated in oxidation solution with the second rotating speed；The heating-up temperature of oxidation solution be 130-160 DEG C between, the second rotating speed
Less than or equal to 0.1m/s, oxidation time is 3-4 hours.
To sum up, the present invention provides a kind of roller surface processing unit and technique, can generate even compact in roller surface
Oxidation film layer, its composition and tissue is different from blank, so as to effectively reduce the coefficient of friction between roll and blank.
Brief description of the drawings
Fig. 1 is the main structure diagram of device embodiment of the invention；
Front view structure (not including stay-warm case) after Fig. 2 is lifted to device embodiment of the invention for roll is illustrated
Figure；
Fig. 3 is the support of device embodiment of the invention, the position relationship schematic diagram between support roller and roll；
Fig. 4 is the treatment trough of device embodiment of the invention, the position relationship schematic diagram between stay-warm case and roll.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawings and detailed description.
As shown in figure 1, device embodiment of the invention includes base 1, treatment trough 2, heater 4, support 5, motor 6, master
Dynamic support roller 7, driven support roller 8, stay-warm case 9.As shown in figs 2-4, using device embodiment of the invention in roll 100
There is oxidation reaction in surface.
Specifically, there is base 1 a flat upper surface, treatment trough 2, support 5 etc. to be fixed on the upper surface of base 1.
Treatment trough 2 is used to accommodate and roller surface occurs the oxidation solution 3 of oxidation reaction, and its shape is simultaneously unrestricted.Heater 4 is located at treatment
In groove 2, for heating the oxidation solution 3 in groove 2.Preferably, heater 4 is the electrical heating that can be soaked in oxidation solution 3
Block.In other embodiments, heater can also be arranged on outside treatment trough, for example, oxidation solution is entered using modes such as electromagnetic waves
During row heating, heater etc. can be positioned over outside treatment trough.Support 5, including including active support roller 7 and driven support roller 8
Support roller constitute the support meanss of roll 100, the support meanss of the present embodiment include two groups, respectively positioned at the side for the treatment of trough 2,
For two roll necks 101 at the two ends of back-up roll 100.
As Figure 1 and Figure 4, treatment trough 2 in opening upwards box-structure, it is preferable that the overall appearance for the treatment of trough 2 is in
Cuboid.Additionally, the top for the treatment of trough 2 is additionally provided with stay-warm case 9, to keep the temperature of oxidation solution 3, it is to avoid its temperature drop is very fast.
In order to it is as close to each other as possible between the roll neck 101 for making treatment trough 2, the edge of stay-warm case 9 and roll 100,
The top edge both sides of heat losses, treatment trough 2 are avoided to be provided with the corresponding semicircular notch 20 in left and right.Stay-warm case 9 be opening to
Under box-structure, its opening and the openings of sizes for the treatment of trough 2, shape are essentially identical.The lower edge both sides of stay-warm case 9 are provided with a left side
Right corresponding semicircular notch 90, two notches 20 for the treatment of trough 2 and two notches 90 of stay-warm case 9 are corresponded to respectively, roll
100 two roll necks 101 are respectively by two manholes being made up of notch 20, notch 90.
Again as Figure 1 and Figure 4, in the both sides of the notch 20 for the treatment of trough 2, the top edge for the treatment of trough 20 is outward extended with water
Flat collar 21.In the both sides of notch 90 of stay-warm case 9, the edge of stay-warm case 9 is also outward extended with horizontal flanges 91, stay-warm case 9
Horizontal flanges 91 can so make that stay-warm case 9 is simple, be stably placed at treatment located at the top of horizontal flanges 21 for the treatment of trough 2
The top of groove 2.
As shown in figure 3, support 5 is tower structure, two stands 5 are respectively arranged on the both sides for the treatment of trough 2.Active support roller 7,
Driven support roller 8 be parallel to each other and can horizontally rotate located at the top of support 5, it is spaced apart therebetween.Roll 100
Roll neck 101 be placed between active support roller 7, driven support roller 8.Motor 6 is fixed on the bottom of support 5, is passed by belt
Motivation structure or chain drive are connected with active support roller 7, to drive active support roller 7 to rotate, and then drive roll neck 101
Rotation.
In application the present embodiment, before being surface-treated to roll 100, oxidation solution is prepared first, oxidation solution is preferably wrapped
Include sodium nitrate, NaOH, natrium nitrosum, water, with the roll surface of roll generate ferroso-ferric oxide oxidation film layer, and sodium nitrate,
NaOH, natrium nitrosum, the weight ratio of water are 1~2:11~13:3~4:20~25.
Then, set target temperature and open heater switch.
Heater 4 by the oxidation solution 3 in treatment trough 2 be heated to 130-160 DEG C between after, open stay-warm case 9, by roll
100 are lifted into active support roller 7, the top of driven support roller 8, and the roll surface of the 1/4-1/3 of roll 100 is immersed in treatment trough 2
In interior oxidation solution 3.
After covering stay-warm case 9, the switch of motor 6 is opened, under the drive of left and right sides motor 6, the active support of both sides
Roller 7 is rotated together, drives roll 100 to be rotated with speed faster, for example, rotated with the speed not less than 0.2m/s, using treatment
High-temperature oxydation liquid 3 in groove 2 carries out continuously pre-heating to atwirl roll 100, prevents the stress for preheating uneven generation to rolling
Roller 100 produces harmful effect, and the time of preheating was advisable with 0.5-1 hours.
After preheating is finished, the rotating speed of motor 6 is reduced, the roll surface of roll 100 is rotated with slower speed, such as little
In being reacted with the oxidation solution 3 in treatment trough 2 under the speed of 0.1m/s, oxidation processes were completed by 2-4 hours.After reaction terminates,
The surface of roll 100 can form one layer of oxidation film layer of densification, and the main component of the oxidation film layer is ferroso-ferric oxide, it is clear that
Ground, the composition and tissue of the oxidation film layer are different from the blank of milling train.
When the roll surface of roll 100 forms the oxidation film layer of blue dense uniform, that is, show oxidation solution to the surface of roll 100
Oxidation processes finish, open stay-warm case 9, hang away roll 100, carry out the treatment of next roll or power off.
In above-mentioned course of reaction, roll 100 can be according to oxygen in rotating speed, preheating time, the reaction time in each stage
The size for changing the temperature, concentration and roll 100 of liquid is suitably adjusted.
Several embodiments are set forth below, are specifically described with the surface treatment process to roll.
Embodiment 1
There are 2 active support rollers, 2 driven support rollers in the present embodiment, wherein 2 active support rollers 7 are located at two respectively
On the support of side, it is connected with the motor transmission shaft of both sides, can be rotated around own axes under motor drive.2 driven support rollers 8
Respectively on the support of both sides, can be rotated around own axes, coordinate the common back-up roll of active support roller.Oxidation solution is located at place
In reason groove, for carrying out surface oxidation treatment to roll, the composition of oxidation solution is sodium nitrate, NaOH, natrium nitrosum, water,
Their ratio is 1：11：3：20.
First to set target temperature and opening heater switch, electrical heating block adds the oxidation solution in treatment trough to handling process
After between hot to 130~135 DEG C, roll is lifted into processing unit top, the roll surface of roll 1/4 is immersed in treatment trough
In oxidation solution, adjustment roll location makes the roll neck at body of roll two ends fall on the backing roll of the device left and right sides (as shown in Figure 2), covers
Motor switch is opened after upper stay-warm case, under the drive of left and right sides motor, the active support roller of both sides is rotated together, and drive is rolled
Roller is rotated with the speed of 0.2m/s, carries out continuously pre-heating to atwirl roll using the high-temperature oxydation liquid in treatment trough, in advance
The hot time is 0.5 hour.Preheating reduces motor speed after finishing, make roll surface under the speed of 0.1m/s with treatment trough in
Oxidation solution is reacted, and oxidation processes were completed by 4 hours, and stay-warm case is opened after being disposed, and is reacted after terminating, now the table of roll
Face forms one layer of ferroso-ferric oxide oxidation film layer of densification, hangs away roll, carries out the treatment of next roll or powers off.
Embodiment 2
There are 2 active support rollers, 4 driven support rollers in the present embodiment, wherein 2 active support rollers 7 are located at two respectively
On the support of side, it is connected with the motor transmission shaft of both sides, can be rotated around own axes under motor drive.4 driven support rollers 8
Respectively on the support of both sides, per side 2, can be rotated around own axes, coordinate the common back-up roll of active support roller.Oxidation
In in treatment trough, for carrying out surface oxidation treatment to roll, the composition of oxidation solution is sodium nitrate, NaOH, nitrous to liquid level
Sour sodium, water, their ratio are 2：13：4：25.
First to set target temperature and opening heater switch, electrical heating block adds the oxidation solution in treatment trough to handling process
After hot to 135~140 DEG C, roll is lifted into processing unit top, the oxidation for making the roll surface of roll 1/4 be immersed in treatment trough
In liquid, adjustment roll location makes the roll neck at body of roll two ends fall on the backing roll of the device left and right sides (as shown in Figure 2), covers guarantor
Temperature cover after open motor switch, under the drive of left and right sides motor, the active support roller of both sides is rotated together, drive roll with
The speed rotation of 0.3m/s, carries out continuously pre-heating, during preheating using the high-temperature oxydation liquid in treatment trough to atwirl roll
Between be 1 hour.Preheating reduces motor speed after finishing, make roll surface under the speed of 0.1m/s with treatment trough in oxidation
Liquid is reacted, and oxidation processes were completed by 4 hours, and stay-warm case is opened after being disposed, and now the surface of roll forms one layer of cause
Close ferroso-ferric oxide oxidation film layer, hangs away roll, carries out the treatment of next roll or powers off.
Embodiment 3
There are 2 active support rollers, 4 driven support rollers in the present embodiment, wherein 2 active support rollers 7 are located at two respectively
On the support of side, it is connected with the motor transmission shaft of both sides, can be rotated around own axes under motor drive.4 driven support rollers 8
Respectively on the support of both sides, per side 2, can be rotated around own axes, coordinate the common back-up roll of active support roller.Oxidation
In in treatment trough, for carrying out surface oxidation treatment to roll, the composition of oxidation solution is sodium nitrate, NaOH, nitrous to liquid level
Sour sodium, water, their ratio are 1.5：12：3.5：22.5.
First to set target temperature and opening heater switch, electrical heating block adds the oxidation solution in treatment trough to handling process
After hot to 145~150 DEG C, roll is lifted into processing unit top, the oxidation for making the roll surface of roll 1/3 be immersed in treatment trough
In liquid, adjustment roll location makes the roll neck at body of roll two ends fall on the backing roll of the device left and right sides (as shown in Figure 2), covers guarantor
Temperature cover after open motor switch, under the drive of left and right sides motor, the active support roller of both sides is rotated together, drive roll with
The speed rotation of 0.5m/s, carries out continuously pre-heating, during preheating using the high-temperature oxydation liquid in treatment trough to atwirl roll
Between be 1 hour.Preheating reduces motor speed after finishing, make roll surface under the speed of 0.08m/s with treatment trough in oxidation
Liquid is reacted, and oxidation processes were completed by 3 hours, and stay-warm case is opened after being disposed, and now the surface of roll forms one layer of cause
Close ferroso-ferric oxide oxidation film layer, hangs away roll, carries out the treatment of next roll or powers off.
Embodiment 4
There are 2 active support rollers, 6 driven support rollers in the present embodiment, wherein 2 active support rollers 7 are located at two respectively
On the support of side, it is connected with the motor transmission shaft of both sides, can be rotated around own axes under motor drive.6 driven support rollers 8
Respectively on the support of both sides, per side 3, can be rotated around own axes, coordinate the common back-up roll of active support roller.Oxidation
In in treatment trough, for carrying out surface oxidation treatment to roll, the composition of oxidation solution is sodium nitrate, NaOH, nitrous to liquid level
Sour sodium, water, their ratio are 1.5：12：3.5：22.5.
First to set target temperature and opening heater switch, electrical heating block adds the oxidation solution in treatment trough to handling process
After hot to 156~160 DEG C, roll is lifted into processing unit top, the oxidation for making the roll surface of roll 2/7 be immersed in treatment trough
In liquid, adjustment roll location makes the roll neck at body of roll two ends fall on the backing roll of the device left and right sides (as shown in Figure 2), covers guarantor
Temperature cover after open motor switch, under the drive of left and right sides motor, the active support roller of both sides is rotated together, drive roll with
The speed rotation of 0.5m/s, carries out continuously pre-heating, during preheating using the high-temperature oxydation liquid in treatment trough to atwirl roll
Between be 0.8 hour.Preheating reduces motor speed after finishing, make roll surface under the speed of 0.08m/s with treatment trough in oxygen
Change liquid reaction, oxidation processes were completed by 3.5 hours, stay-warm case is opened after being disposed, now the surface of roll forms one
The fine and close ferroso-ferric oxide oxidation film layer of layer, hangs away roll, carries out the treatment of next roll or powers off.
Embodiment 5
There are 2 active support rollers, 6 driven support rollers in the present embodiment, wherein 2 active support rollers 7 are located at two respectively
On the support of side, it is connected with the motor transmission shaft of both sides, can be rotated around own axes under motor drive.6 driven support rollers 8
Respectively on the support of both sides, per side 3, can be rotated around own axes, coordinate the common back-up roll of active support roller.Oxidation
In in treatment trough, for carrying out surface oxidation treatment to roll, the composition of oxidation solution is sodium nitrate, NaOH, nitrous to liquid level
Sour sodium, water, their ratio are 2：12：4：20.
First to set target temperature and opening heater switch, electrical heating block adds the oxidation solution in treatment trough to handling process
After hot to 150~154 DEG C, roll is lifted into processing unit top, the oxidation for making the roll surface of roll 1/3 be immersed in treatment trough
In liquid, adjustment roll location makes the roll neck at body of roll two ends fall on the backing roll of the device left and right sides (as shown in Figure 2), covers guarantor
Temperature cover after open motor switch, under the drive of left and right sides motor, the active support roller of both sides is rotated together, drive roll with
The speed rotation of 0.5m/s, carries out continuously pre-heating, during preheating using the high-temperature oxydation liquid in treatment trough to atwirl roll
Between be 0.6 hour.Preheating reduces motor speed after finishing, make roll surface under the speed of 0.08m/s with treatment trough in oxygen
Change liquid reaction, oxidation processes were completed by 3.5 hours, stay-warm case is opened after being disposed, now the surface of roll forms one
The fine and close ferroso-ferric oxide oxidation film layer of layer, hangs away roll, carries out the treatment of next roll or powers off.
Embodiment 6
There are 2 active support rollers, 4 driven support rollers in the present embodiment, wherein 2 active support rollers 7 are located at two respectively
On the support of side, it is connected with the motor transmission shaft of both sides, can be rotated around own axes under motor drive.4 driven support rollers 8
Respectively on the support of both sides, per side 2, can be rotated around own axes, coordinate the common back-up roll of active support roller.Oxidation
In in treatment trough, for carrying out surface oxidation treatment to roll, the composition of oxidation solution is sodium nitrate, NaOH, nitrous to liquid level
Sour sodium, water, their ratio are 2：13：3：25.
First to set target temperature and opening heater switch, electrical heating block adds the oxidation solution in treatment trough to handling process
After hot to 154~156 DEG C, roll is lifted into processing unit top, the oxidation for making the roll surface of roll 1/3 be immersed in treatment trough
In liquid, adjustment roll location makes the roll neck at body of roll two ends fall on the backing roll of the device left and right sides (as shown in Figure 2), covers guarantor
Temperature cover after open motor switch, under the drive of left and right sides motor, the active support roller of both sides is rotated together, drive roll with
The speed rotation of 0.5m/s, carries out continuously pre-heating, during preheating using the high-temperature oxydation liquid in treatment trough to atwirl roll
Between be 0.8 hour.Preheating reduces motor speed after finishing, make roll surface under the speed of 0.06m/s with treatment trough in oxygen
Change liquid reaction, oxidation processes were completed by 2.5 hours, stay-warm case is opened after being disposed, now the surface of roll forms one
The fine and close ferroso-ferric oxide oxidation film layer of layer, hangs away roll, carries out the treatment of next roll or powers off.
In sum, the present invention is processed by roller surface, changes the composition and tissue of roller surface, makes it not
Blank is same as, such that it is able to reduce coefficient of friction, the generation of steel bonding, improve product quality is reduced.
Additionally, the present invention is in application process, a small amount of electric energy is only consumed, the oxidation solution for being used is with low cost and can be repeatedly
Use, oxidation solution is placed in treatment trough, in the surrounding environment that will not be discharged, reach recyclable treatment after service life, will not
Cause the pollution of environment.Can not only solve the problems, such as to cause blank temperature to decline or pollution environment using lubricant medium, Er Qieneng
Enough overcome that laser processing method is present surface texture is uneven, case hardness it is big repair difficult and spray-on coating method and exist apply
The shortcomings of layer poor adhesive force, hole.
Therefore, the present invention has the advantages that low cost, safety and environmental protection and application effect are good.
As known by the technical knowledge, the present invention can be by other essence without departing from its spirit or the embodiment party of essential feature
Case is realized.Therefore, embodiment disclosed above, for each side, is all merely illustrative, and is not only.Institute
Have within the scope of the present invention or be included in the invention in the change being equal in the scope of the present invention.
Claims (2)
1. a kind of roller surface handling process, it is characterised in that the processing unit of the roller surface includes：
Treatment trough, for accommodating the oxidation solution that oxidation reaction occurs with roller surface；
The treatment trough is in the box-structure of opening upwards, and treatment trough top is additionally provided with stay-warm case, to keep oxidation solution
Temperature；
The treatment trough top edge both sides are provided with the corresponding semicircular notch in left and right；
The stay-warm case is also the box-structure that Open Side Down, and the stay-warm case lower edge both sides are provided with the corresponding semicircle in left and right
The notch of the notch of shape, the notch of the treatment trough and the stay-warm case is corresponded to respectively, with by the roll neck of roll；
In the both sides of the notch of the treatment trough, the treatment trough top edge is outward extended with horizontal flanges；
In the notch both sides of the stay-warm case, the edge of the stay-warm case is also outward extended with horizontal flanges；The stay-warm case
Horizontal flanges are located at the horizontal flanges top of the treatment trough；
Heater, in the treatment trough or near the treatment trough, for heating the oxidation in the treatment trough
Liquid；
Support meanss, positioned at the treatment trough side, for the roll neck of back-up roll；
The support meanss include：
Support, located at the treatment trough both sides；
Support roller, including active support roller, driven support roller, the active support roller, driven support roller are parallel to each other and can water
It is flat to be rotatably located on the support, so that the roll neck of roll is arranged between the active support roller, driven support roller；
Motor, is connected with the active support roller, to drive the active support roller to rotate；
The handling process of the roller surface is processed using the processing unit, is comprised the following steps：
It is formulated for being formed in roller surface the oxidation solution of oxidation film layer；
Heated oxidizing fluid；
Using the roll surface of the oxidation solution preheated nip roll of heating；
Preheating is finished, and makes the roll surface of oxidation solution and roll that oxidation reaction to occur；
Reaction terminates, and removes and clear up roll；
Oxidation solution includes sodium nitrate, NaOH, natrium nitrosum, water, and ferroso-ferric oxide oxide-film is generated with roller surface
Layer, and the weight ratio of the sodium nitrate, NaOH, natrium nitrosum, water is 1~2:11~13:3~4:20~25；
Using the oxidation solution preheated nip roll of heating roll surface when, the 1/4-1/3's of roll surface is immersed in oxidation solution, and in oxygen
Rotated with the first rotating speed in change liquid；
For between 130-160 DEG C, the first rotating speed is more than or equal to 0.2m/s, preheating time is that 0.5-1 is small to the heating-up temperature of oxidation solution
When；
When the roll surface of oxidation solution and roll occurs oxidation reaction, roll is rotated in oxidation solution with the second rotating speed；
The heating-up temperature of oxidation solution is between 130-160 DEG C, the second rotating speed is less than or equal to 0.1m/s, and oxidation time is 3-4
Hour.
2. roller surface handling process according to claim 1, it is characterised in that the heater is to be positioned over the place
Electrical heating block in reason groove.
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| CN201410242186.1A CN103993305B (en) | 2014-06-03 | 2014-06-03 | Roller surface processing unit and technique |
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|---|---|---|---|
| CN201410242186.1A CN103993305B (en) | 2014-06-03 | 2014-06-03 | Roller surface processing unit and technique |
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| CN103993305B true CN103993305B (en) | 2017-06-13 |
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| CN110257594B (en) * | 2019-07-29 | 2023-05-16 | 湖南力方轧辊有限公司 | Prefabricated surface oxide film hot roll process and equipment |
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| CN101049607A (en) * | 2007-05-11 | 2007-10-10 | 鞍山亨通冶金矿山设备制造有限公司 | Machine for reassembling bearing seat of supporting roller with positioning function, rotational carrying roller, and servo actuated cover board |
| CN101280427A (en) * | 2007-04-06 | 2008-10-08 | 长春奥普光电技术股份有限公司 | Constant temperature chemical oxidation blackening process for iron-nickel alloy for optical instrument |
| CN101922005A (en) * | 2010-09-07 | 2010-12-22 | 武汉船用机械有限责任公司 | High-temperature bluing method of long and large part |
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| CN203866383U (en) * | 2014-06-03 | 2014-10-08 | 莱芜钢铁集团有限公司 | Roller surface treating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280427A (en) * | 2007-04-06 | 2008-10-08 | 长春奥普光电技术股份有限公司 | Constant temperature chemical oxidation blackening process for iron-nickel alloy for optical instrument |
| CN101049607A (en) * | 2007-05-11 | 2007-10-10 | 鞍山亨通冶金矿山设备制造有限公司 | Machine for reassembling bearing seat of supporting roller with positioning function, rotational carrying roller, and servo actuated cover board |
| CN101922005A (en) * | 2010-09-07 | 2010-12-22 | 武汉船用机械有限责任公司 | High-temperature bluing method of long and large part |
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| 轧辊粘钢产生原因及解决途径;臧海峰等;《科技信息》;20121231(第21期);第39页2.5成品轧机立辊表面钝化 * |
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