CN203866383U - Roller surface treating device - Google Patents
Roller surface treating device Download PDFInfo
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- CN203866383U CN203866383U CN201420291851.1U CN201420291851U CN203866383U CN 203866383 U CN203866383 U CN 203866383U CN 201420291851 U CN201420291851 U CN 201420291851U CN 203866383 U CN203866383 U CN 203866383U
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- roll
- treatment trough
- roller surface
- stay
- warm case
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Abstract
The utility model provides a roller surface treating device. The roller surface treating device comprises a treating tank, a heater and a support device, wherein the treating tank is used for accommodating oxidation liquid which oxidizes a roller surface, the heater is positioned in the treating tank or is close to the treating tank and is used for heating the oxidation liquid in the treating tank, and the support device is positioned on the lateral side of the treating tank and is used for supporting a roller neck of a roller. The roller surface treating device has the advantages that a uniform and compact oxidation film layer can be generated on the roller surface, the oxidation film layer is different from a blank in ingredients and organizations, and the friction coefficient between the roller and the blank is lowered effectively.
Description
Technical field
The utility model relates to metallurgical machinery equipment technical field, particularly a kind of roller surface treatment unit and technique.
Background technology
Metal, for example iron and steel, in hot rolling production process, the position that blank under the condition of high temperature contacts with roll is due to huge pressure and violent rubbing effect, part metals meeting and roller surface on blank produce adhesion, make this part metal depart from blank and form steel cuttings to be bonded on roll and (to be commonly called as steel bonding), steel cuttings is cooling rapidly under the effect of roll and milling train water coolant, hardness is along with the cooling of steel cuttings sharply becomes large, in the operation of rolling subsequently, the roll that is stained with steel cuttings can extrude blank surface pit or groove, particularly when the roll of finisher is stained with after steel cuttings, the surface quality of finished product will be had a strong impact on, even cause waste product.
It is mainly because the frictional coefficient between roll and high temperature blank is excessive that roll is easily stained with steel cuttings, makes the Frotteurism of roll and blank in the operation of rolling become sticking friction from sliding friction.In hot rolling technology field, around this problem of frictional coefficient how reducing between roll and blank, many terms of settlement are there are.
At present, conventional method is that nozzle is installed at inlet of rolling mill place, between roll and blank, spray high pressure water, make hydraulic pressure form one deck high pressure moisture film in the gap of roll and blank, utilize the lubrication of moisture film to reduce the frictional coefficient between roll and blank, the method can alleviate roll steel bonding largely, improve the surface quality of product, but because the medium using is high pressure water, in lubricated, can sharply reduce the temperature of blank, the resistance to deformation of blank is increased, rolling pressure and milling train energy consumption increase, in the time producing the shaped steel of thinner thickness, this problem is especially outstanding, even have a strong impact on normally carrying out of production.
In order to alleviate the lubricated disadvantageous effect of bringing of above-mentioned high pressure water, there is replacing with emulsion the solution of high pressure water, the method is mixed into emulsion by machine oil and water according to certain ratio, in order not reduce the temperature of blank in lubricated as far as possible, conventionally adopt less pressure, spray between roll and blank compared with low discharge, although the method has realized reducing between roll and blank in frictional coefficient, can significantly not reduce the temperature of blank, but cause the rising of lubricated cost and the pollution of water.
Under normal circumstances, the composition of material or organize more approaching, mutual frictional coefficient larger, when therefore hot rolling is produced, is all between the roll of steel and blank frictional coefficient very large, and steel bonding easily occurs.The storeroom frictional coefficient of heterogeneity or tissue is less.According to this principle, there is the treatment process that adopts breaker roll surface spraying coating, thereby the method makes it be different from blank to reduce frictional coefficient by changing the composition of roller surface, but spray-on coating facture exist coating adhesion poor, have hole and a high in cost of production shortcoming.Laser treatment rule is carried out pyroprocessing by laser beam breaker roll surface, thereby making roller surface form quenching structure makes it be different from blank reduction frictional coefficient, but laser quenching treatment process exists that roller surface tissue odds is even, frictional coefficient is inconsistent, the excessive production of roller surface hardness finishes the problems such as rear reparation difficulty.
Utility model content
The purpose of this utility model is to provide a kind of roller surface treatment process, causes the problem of blank temperature decline or contaminate environment to solve current employing lubricant medium.
Another object of the present utility model is to provide a kind of roller surface treatment unit, to address the above problem and better to implement above-mentioned technique.
In order to address the above problem, the technical scheme of the roller surface treatment unit that the utility model provides is as follows:
A kind of roller surface treatment unit, it comprises: treatment trough, for holding and the oxidation solution of roller surface generation oxidizing reaction; Well heater, is arranged in described treatment trough or is positioned near described treatment trough, for heating the oxidation solution of described treatment trough; Bracing or strutting arrangement, is positioned at described treatment trough side, for the roll neck of back-up roll.
According to a kind of preferred implementation of above-mentioned roller surface treatment unit, described treatment trough is the box-structure of opening upwards, and is also provided with stay-warm case above described treatment trough, to keep oxidation solution temperature.
According to a kind of preferred implementation of above-mentioned roller surface treatment unit, described treatment trough upper limb both sides are provided with semicircular notch corresponding to left and right; Described stay-warm case is also the box-structure that Open Side Down, and described stay-warm case lower rim both sides are provided with semicircular notch corresponding to left and right, and the notch of described treatment trough and the notch of described stay-warm case are corresponding respectively, with by the roll neck of roll.
According to a kind of preferred implementation of above-mentioned roller surface treatment unit, in the both sides of the notch of described treatment trough, described treatment trough upper limb is outward extended with horizontal flanges; In the notch both sides of described stay-warm case, the edge of described stay-warm case is also outward extended with horizontal flanges; The horizontal flanges of described stay-warm case is located at the horizontal flanges top of described treatment trough.
According to a kind of preferred implementation of above-mentioned roller surface treatment unit, described well heater is the electrically heated piece being positioned in described treatment trough.
According to a kind of preferred implementation of above-mentioned roller surface treatment unit, described bracing or strutting arrangement comprises: support, be located at described treatment trough both sides; Supporting roll, comprises initiatively supporting roll, driven supporting roll, and described active supporting roll, driven supporting roll are parallel to each other and can horizontally rotate and be located on described support, so that the roll neck of roll is arranged between described active supporting roll, driven supporting roll; Motor, is connected with described active supporting roll, to drive described active supporting roll rotation.
In order to address the above problem, the technical scheme of the roller surface treatment process that the utility model provides is as follows:
A kind of roller surface treatment process, it comprises the following steps: preparation is for forming the oxidation solution of oxidation film layer at roller surface; Heated oxidizing fluid; Utilize the roll surface of the pre-hot roll of oxidation solution of heating; Preheating is complete, makes the roll surface generation oxidizing reaction of oxidation solution and roll; Reaction finishes, and removes and clear up roll.
According to a kind of preferred implementation of above-mentioned roller surface treatment process, oxidation solution comprises SODIUMNITRATE, sodium hydroxide, Sodium Nitrite, water, to generate Z 250 oxidation film layer at roller surface, and the weight ratio of described SODIUMNITRATE, sodium hydroxide, Sodium Nitrite, water is 1～2:11～13:3～4:20～25.
According to a kind of preferred implementation of above-mentioned roller surface treatment process, while utilizing the roll surface of the pre-hot roll of oxidation solution of heating, the 1/4-1/3 of roll surface is immersed in oxidation solution, and rotates with the first rotating speed in oxidation solution; The Heating temperature of oxidation solution is between 130-160 DEG C, and the first rotating speed is more than or equal to 0.2m/s, and be 0.5-1 hour warm up time.
According to a kind of preferred implementation of above-mentioned roller surface treatment process, when the roll surface generation oxidizing reaction of oxidation solution and roll, roll in oxidation solution with the second rotating speed rotation; The Heating temperature of oxidation solution is between 130-160 DEG C, and the second rotating speed is less than or equal to 0.1m/s, and oxidation time is 3-4 hour.
To sum up, the utility model provides a kind of roller surface treatment unit and technique, can generate at roller surface the oxidation film layer of even compact, makes its composition and tissue be different from blank, thereby effectively reduces the frictional coefficient between roll and blank.
Brief description of the drawings
Fig. 1 is the main TV structure schematic diagram of device embodiment of the present utility model;
Fig. 2 is roll lifting to main TV structure (the not comprising stay-warm case) schematic diagram after on device embodiment of the present utility model;
Fig. 3 is the position relationship schematic diagram between support, supporting roll and the roll of device embodiment of the present utility model;
Fig. 4 is the position relationship schematic diagram between treatment trough, stay-warm case and the roll of device embodiment of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
As shown in Figure 1, device embodiment of the present utility model comprises base 1, treatment trough 2, well heater 4, support 5, motor 6, active supporting roll 7, driven supporting roll 8, stay-warm case 9.As shown in Fig. 2-Fig. 4, utilize device embodiment of the present utility model, on the surface of roll 100, oxidizing reaction occurs.
Particularly, base 1 has a smooth upper surface, and treatment trough 2, support 5 etc. is fixed on the upper surface of base 1.Treatment trough 2 is for holding and the oxidation solution 3 of roller surface generation oxidizing reaction, and its shape is also unrestricted.Well heater 4 is arranged in treatment trough 2, for the oxidation solution 3 of heat treated groove 2.Preferably, well heater 4 is for being soaked in the electrically heated piece in oxidation solution 3.In other embodiments, well heater also can be arranged on treatment trough outside, and for example, while utilizing the modes such as hertzian wave to heat oxidation solution, well heater etc. can be positioned over treatment trough outside.Support 5, including the bracing or strutting arrangement of the supporting roll composition roll 100 initiatively supporting roll 7 and driven supporting roll 8, the bracing or strutting arrangement of the present embodiment comprises two groups, lays respectively at treatment trough 2 sides, for two roll necks 101 at back-up roll 100 two ends.
As Figure 1 and Figure 4, treatment trough 2 is the box-structure of opening upwards, and preferably, the overall appearance for the treatment of trough 2 is rectangular parallelepiped.In addition, treatment trough 2 tops are also provided with stay-warm case 9, to keep oxidation solution 3 temperature, avoid its temperature to decline very fast.
For can make between the edge for the treatment of trough 2, stay-warm case 9 and the roll neck 101 of roll 100 as far as possible mutually close, avoid heat to run off, the upper limb both sides for the treatment of trough 2 are provided with semicircular notch 20 corresponding to left and right.Stay-warm case 9 is the box-structure that Open Side Down, and openings of sizes, the shape of its opening and treatment trough 2 are basic identical.The lower rim both sides of stay-warm case 9 are provided with semicircular notch 90 corresponding to left and right, two notches 20 for the treatment of trough 2 and two notches of stay-warm case 9 90 are corresponding respectively, and two roll necks 101 of roll 100 are respectively by two manholes that are 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 upper limb for the treatment of trough 20 is outward extended with horizontal flanges 21.In notch 90 both sides of stay-warm case 9, the edge of stay-warm case 9 is also outward extended with horizontal flanges 91, and the horizontal flanges 91 of stay-warm case 9 is located at horizontal flanges 21 tops for the treatment of trough 2, can make like this stay-warm case 9 simply, stably be arranged on treatment trough 2 tops.
As shown in Figure 3, support 5 is tower structure, and two stands 5 is located at respectively treatment trough 2 both sides.Initiatively supporting roll 7, driven supporting roll 8 are parallel to each other and can horizontally rotate the top of being located at support 5, between the two, keep at a certain distance away.The roll neck 101 of roll 100 is placed on initiatively between supporting roll 7, driven supporting roll 8.Motor 6 is fixed on the bottom of support 5, is connected with active supporting roll 7 by belt gear or chain drive, to drive initiatively supporting roll 7 to rotate, and then drives roll neck 101 to rotate.
In the time of application the present embodiment, breaker roll 100 carries out before surface treatment, first prepare oxidation solution, oxidation solution preferably includes SODIUMNITRATE, sodium hydroxide, Sodium Nitrite, water, generate Z 250 oxidation film layer with roll surface at roll, and the weight ratio of SODIUMNITRATE, sodium hydroxide, Sodium Nitrite, water is 1～2:11～13:3～4:20～25.
Then, set target temperature and open heater switch.
Well heater 4 is opened stay-warm case 9 after the oxidation solution in treatment trough 23 is heated between 130-160 DEG C, roll 100 is lifted into initiatively supporting roll 7, driven supporting roll 8 tops, and the roll surface of the 1/4-1/3 of roll 100 is immersed in the oxidation solution 3 in treatment trough 2.
Cover after stay-warm case 9, open the switch of motor 6, under the drive of left and right sides motor 6, the active supporting roll 7 of both sides rotates together, drive roll 100 with speed rotation faster, for example, to be not less than the speed rotation of 0.2m/s, utilize the high temperature oxidation liquid 3 in treatment trough 2 to carry out continuously pre-heating to atwirl roll 100, prevent that the uneven stress breaker roll 100 producing of preheating from producing detrimentally affect, the time of preheating was advisable with 0.5-1 hour.
After preheating, reduce the rotating speed of motor 6, make the roll surface of roll 100 with slower speed rotation, for example, under the speed that is not more than 0.1m/s, react with the oxidation solution 3 in treatment trough 2, through within 2-4 hour, completing oxide treatment.After reaction finishes, the surface of roll 100 can form the oxidation film layer of one deck densification, and the main component of this oxidation film layer is Z 250, and apparently, the composition of this oxidation film layer and tissue are different from the blank of milling train.
In the time that the roll surface of roll 100 forms blue fine and close oxidation film layer uniformly, show that the oxide treatment on oxidation solution breaker roll 100 surfaces is complete, open stay-warm case 9, hang away roll 100, carry out the processing of next roll or turn off power supply.
In above-mentioned reaction process, roll 100 all can suitably be adjusted according to the size of the temperature of oxidation solution, concentration and roll 100 in rotating speed, warm up time, the reaction times in each stage.
In sum, the utility model is processed by breaker roll surface, changes composition and the tissue of roller surface, makes it be different from blank, thereby can reduce frictional coefficient, reduces the generation of steel bonding, improves the quality of products.
In addition, the utility model, in application process, only consumes a small amount of electric energy, the oxidation solution that uses is with low cost and can Reusability, and oxidation solution is placed in treatment trough, in the surrounding environment that can not discharge, arrive recyclable processing after work-ing life, can not cause the pollution of environment.Can not only solve and adopt lubricant medium to cause blank temperature to decline or the problem of contaminate environment, and can overcome that the surface structure that laser processing method exists is inhomogeneous, the large reparation difficulty of surface hardness and spray-on coating method exist coating adhesion poor, have shortcomings such as hole.
Therefore, the utlity model has that cost is low, safety and environmental protection and the good advantage of effect.
As known by the technical knowledge, the utility model can be realized by other the embodiment that does not depart from its spirit or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, and is not only.Allly within the scope of the utility model or in the change being equal in scope of the present utility model, be all included in the utility model.
Claims (6)
1. a roller surface treatment unit, is characterized in that, comprising:
Treatment trough, for holding and the oxidation solution of roller surface generation oxidizing reaction;
Well heater, is arranged in described treatment trough or is positioned near described treatment trough, for heating the oxidation solution of described treatment trough;
Bracing or strutting arrangement, is positioned at described treatment trough side, for the roll neck of back-up roll.
2. roller surface treatment unit according to claim 1, is characterized in that, described treatment trough is the box-structure of opening upwards, and is also provided with stay-warm case above described treatment trough, to keep oxidation solution temperature.
3. roller surface treatment unit according to claim 2, is characterized in that, described treatment trough upper limb both sides are provided with semicircular notch corresponding to left and right;
Described stay-warm case is also the box-structure that Open Side Down, and described stay-warm case lower rim both sides are provided with semicircular notch corresponding to left and right, and the notch of described treatment trough and the notch of described stay-warm case are corresponding respectively, with by the roll neck of roll.
4. roller surface treatment unit according to claim 3, is characterized in that, in the both sides of the notch of described treatment trough, described treatment trough upper limb is outward extended with horizontal flanges;
In the notch both sides of described stay-warm case, the edge of described stay-warm case is also outward extended with horizontal flanges; The horizontal flanges of described stay-warm case is located at the horizontal flanges top of described treatment trough.
5. roller surface treatment unit according to claim 1, is characterized in that, described well heater is the electrically heated piece being positioned in described treatment trough.
6. roller surface treatment unit according to claim 1, is characterized in that, described bracing or strutting arrangement comprises:
Support, is located at described treatment trough both sides;
Supporting roll, comprises initiatively supporting roll, driven supporting roll, and described active supporting roll, driven supporting roll are parallel to each other and can horizontally rotate and be located on described support, so that the roll neck of roll is arranged between described active supporting roll, driven supporting roll;
Motor, is connected with described active supporting roll, to drive described active supporting roll rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291851.1U CN203866383U (en) | 2014-06-03 | 2014-06-03 | Roller surface treating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291851.1U CN203866383U (en) | 2014-06-03 | 2014-06-03 | Roller surface treating device |
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| Publication Number | Publication Date |
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| CN203866383U true CN203866383U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420291851.1U Expired - Fee Related CN203866383U (en) | 2014-06-03 | 2014-06-03 | Roller surface treating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993305A (en) * | 2014-06-03 | 2014-08-20 | 莱芜钢铁集团有限公司 | Roller surface treatment device and process |
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2014
- 2014-06-03 CN CN201420291851.1U patent/CN203866383U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993305A (en) * | 2014-06-03 | 2014-08-20 | 莱芜钢铁集团有限公司 | Roller surface treatment device and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huo Xiwei Inventor after: Yuan Shujun Inventor after: Ji Jinli Inventor after: Song Zhiguo Inventor after: Kong Lingkun Inventor after: Fan Xu Inventor before: Huo Xiwei Inventor before: Yuan Shujun Inventor before: Ji Jinli Inventor before: Song Zhiguo Inventor before: Kong Lingkun Inventor before: Fan Xu |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20170603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |