CN204220677U - The device of the smooth rust cleaning of hot rolled steel plate differential - Google Patents
The device of the smooth rust cleaning of hot rolled steel plate differential Download PDFInfo
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- CN204220677U CN204220677U CN201420072979.9U CN201420072979U CN204220677U CN 204220677 U CN204220677 U CN 204220677U CN 201420072979 U CN201420072979 U CN 201420072979U CN 204220677 U CN204220677 U CN 204220677U
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- roller
- steel plate
- texturing roller
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- rolled steel
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Abstract
The utility model relates to the device of the smooth rust cleaning of a kind of hot rolled steel plate differential, comprises left coiling machine, right coiling machine, left guide roller, right guide roller and 1 ~ 3 four roller planisher or six roller planishers.Four roller planishers are equipped with metal texturing roller, lower metal texturing roller, upper backup roll and lower backing roll.Be steel plate passage between upper metal texturing roller and lower metal texturing roller, upper metallic support roller is positioned on metal texturing roller, and lower metallic support roller is positioned under lower metal texturing roller.Upper metal intermediate calender rolls is contained between upper backup roll and upper metal texturing roller, and lower metal intermediate calender rolls is contained between lower backing roll and lower metal texturing roller.Upper metal texturing roller and lower metal texturing roller are respectively driven by motor, upper metal texturing roller and lower metal texturing roller energy forward and rotate backward.The smooth hot rolled steel plate of metal texturing roller differential that the utility model is installed by planisher, removes hot rolled steel plate surface oxidation iron sheet, avoids environmental pollution, eliminate the yield point elongation of hot rolled steel plate simultaneously, improve the surface quality of hot rolled steel plate.
Description
Technical field
The utility model belongs to metal treatment art, relates to a kind of equipment mechanically removing hot rolled steel plate surface oxidation iron sheet, is specifically related to the device of the smooth rust cleaning of a kind of hot rolled steel plate differential.
Background technology
The hot rolled steel plate produced at high operating temperatures, surface can form the iron scale of a layer thickness greatly in fragility under 0.01 millimeter, normal temperature after the cooling period, the metal carrier body hardness of the hardness ratio hot rolled steel plate of this layer of iron scale is large, and be firmly attached to the metal carrier body surface of hot rolled steel plate, if do not removed this layer of iron scale, after it is rolled fragmentation by the degree of depth in cold-rolled process, flake ferric oxide skin easily embeds the metal carrier body of steel plate, causes the mass defect of product.Therefore, must eliminate rust to the surface of hot rolled steel plate before cold rolling.
Current domestic and international cold rolling industry generally adopts acid washing method for the surface derusting of hot rolled steel plate.Hot rolled steel plate surface oxidation iron sheet, from after uncoiler is opened, successively through 3 ~ 8 descaling baths, erodes, then after clear water rinsing and drying, is again rolled by coiling machine by the hot rolled steel plate in web-like.Acid cleaning process can produce a large amount of spent acid and containing acid rinse water, easy contaminated environment, spent acid with containing acid rinse water treatment costly.Due to pickling lines waiting (above roll up or unload volume) or overpickling, owe the reasons such as pickling, the hot rolled sheet metal surface after pickling can remain some macula luteas, blackspot or aberration, affects the surface quality of follow-up cold-rolled steel sheet.Therefore not only cost is high for acid pickling and rust removing, contaminated environment, and the surface quality affecting cold-rolled products.
About smooth with texturing roller.Each cold rolling mill is equipped with 4 rollers or 6 roller planishers are used for carrying out the smooth to eliminate the harmful yield point elongation of cold-rolled steel sheet of reduction in thickness=0.5 ~ 3.0% to later cold-rolled steel sheet of annealing with the pressure of 60t ~ 1000t, and makes the plate deformation of cold-rolled steel sheet obtain more smooth.When the cold rolling levelling plate of production surface roughness Ra=0.6 ~ 1.9 μm matt surface, planisher needs to install texturing metallic roll, and to carry out cold-rolled steel sheet smooth.Texturing roller diameter=350 ~ the 700mm of cold-rolled steel sheet planisher, be adopt laser beam, shot-peening, electric spark, lathe tool, grinder wheel or emery cloth etc. wherein any one mode the original smooth periphery of metallic roll is processed.When cold-rolled steel sheet is smooth, the upper metal texturing roller of planisher and the velocity of rotation of lower metal texturing roller all completely the same with the cold-rolled steel sheet movement velocity be flattened, there is no speed difference.Iron rust, spot (aberration and color spot) and various blemish (cut, pockmark and roll marks etc.) that surface of cold-rolled steel plate remains cannot effectively be eliminated in indifferential formation process.
Utility model content
In order to overcome the deficiency of existing hot rolled steel plate acid pickling and rust removing technology, the utility model provides the device of the smooth rust cleaning of a kind of hot rolled steel plate differential, to improve the efficiency of hot rolled sheet metal surface rust cleaning, avoid environmental pollution, eliminate the yield point elongation of hot rolled steel plate and improve the surface quality of hot rolled steel plate.
The device of the smooth rust cleaning of the utility model hot rolled steel plate differential, comprises left coiling machine, right coiling machine, left guide roller and right guide roller.Device is provided with 1 ~ 3 four roller planisher or six roller planishers.Four roller planishers are equipped with metal texturing roller, lower metal texturing roller, upper backup roll and lower backing roll.Be steel plate passage between upper metal texturing roller and lower metal texturing roller, upper backup roll is positioned on metal texturing roller, and lower backing roll is positioned under lower metal texturing roller.Six roller planishers increase upper metal intermediate calender rolls and lower metal intermediate calender rolls than four roller planishers, and upper metal intermediate calender rolls is contained between upper backup roll and upper metal texturing roller, and lower metal intermediate calender rolls is contained between lower backing roll and lower metal texturing roller.Upper metal texturing roller and lower metal texturing roller are respectively driven by motor, upper metal texturing roller and lower metal texturing roller energy forward and rotate backward.
The utility model texturing used roller adopt on domestic and international cold-rolled steel sheet planisher widely used have excellent wear containing the forged steel metal texturing roller of 1% ~ 5% crome metal, the high speed steel rider that the anti-wear performance that occurs in recent years is more excellent can also be used.
Raw material hot rolling steel sheet is equipped with the planisher of upper metal texturing roller and lower metal texturing roller by 1 ~ 3, the texturing roller of surface irregularity carries out the smooth rust cleaning of differential with the differential action of the pressure of 60t ~ 1000t and 5 ~ 500 ms/min in hot rolled sheet metal surface, destroys the iron scale being attached to hot rolled sheet metal surface with erasing.Differential is the difference of texturing roller superficial velocity relative to hot rolled sheet metal surface speed, and the speed difference of upper metal texturing roller and hot rolled steel plate and the speed difference equal and opposite in direction of lower metal texturing roller and hot rolled steel plate, direction are contrary.
Between a pair texturing roller that hot rolled steel plate raw material is equipped with at a planisher forward be reversed 1 ~ 3 smooth rust cleaning of differential.The smooth raw material of differential also comprises cold-rolled steel sheet, corrosion resistant plate, aluminium sheet and copper coin.The method of the smooth rust cleaning of hot rolled steel plate differential is also for removing its surface blot and blemish, and spot is aberration and color spot, and blemish comprises cut, pockmark and roll marks.
Compared with prior art, the beneficial effects of the utility model are: 1. invest less.The pickling lines that cold rolling industry generally adopts and process spent acid and altogether need more than 4,000 ten thousand yuan containing the corollary equipment investment of acid rinse water, the smooth equipment investment of the utility model texturing roller differential is relatively low.2. floor space is few, and device fabrication line floor space of the present utility model only has 20 ~ 25% of pickling lines and supporting Environmental-protecting treater floor space thereof.3. production efficiency is high.On pickling lines, the rust cleaning speed of hot rolled steel plate is generally 100 ~ 200 ms/min, and the rust cleaning speed of hot rolled steel plate of the present utility model reaches 200 ~ 1000 ms/min.4. non-environmental-pollution.The utility model production process can not cause environmental pollution.5. good product quality.In the differential formation process of texturing roller, realize the smooth of hot rolled steel plate reduction in thickness 0.5 ~ 3.0% and differential friction, the original harmful yield point elongation of hot rolled steel plate can be eliminated, and make hot rolled sheet metal surface cleaning indefectible, present metal body gloss, after not having pickling, hot rolled sheet metal surface is difficult to the luteofuscous patch avoided completely and aberration and the various blemish such as cut, pockmark.6. recoverable iron scale fragment.The iron scale fragment pulverized and wipe out washes away by liquid spray and reclaims through magnetic filter, or purges suction sack cleaner recovery under negative pressure, for iron-smelting raw material through compressed air.
Accompanying drawing illustrates:
Fig. 1 is the schematic flow sheet of the smooth derusting device of the utility model hot rolled steel plate differential;
Fig. 2 is texturing roller differential schematic diagram.
Metal texturing roller rotating speed under hot-rolled sheet coil raw material before metal texturing roller, the left coiling machine of 4-, the left guide roller of 5-, the right guide roller of 6-, the right coiling machine of 7-, 8-rust cleaning, the hot-rolled sheet coil product after 9-rust cleaning, 10-tetra-roller planisher, 11-upper backup roll, 12-lower backing roll, the speed of service of V-hot rolled steel plate, V1-upper metal texturing roller rotating speed, V2-under 1-hot rolled steel plate, 2-upper metal texturing roller, 3-.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
The device of the smooth rust cleaning of the utility model hot rolled steel plate differential as shown in Figure 1, comprises left coiling machine 4, right coiling machine 7, left guide roller 5, right guide roller 6 and four roller planishers 10.Four roller planishers are equipped with metal texturing roller 2, lower metal texturing roller 3, upper backup roll 11 and lower backing roll 12.Be the passage of hot rolled steel plate 1 between upper metal texturing roller and lower metal texturing roller, upper backup roll is positioned on metal texturing roller, and lower backing roll is positioned under lower metal texturing roller.Upper metal texturing roller 2 and lower metal texturing roller 3 are the wear-resisting forged steel texturing roller containing 5% crome metal, diameter=400mm, through adopting laser beam to carry out processing texturing to its smooth cylindrical surface, and texturing roll surface roughness Ra=3 μm after processing.
Hot-rolled sheet coil raw material 8 before rust cleaning opened by left coiling machine 4, the hot rolled steel plate 1 of thickness=3 millimeter is made to enter four roller planishers 10 with speed V=300 m/min through left guide roller 5 under the traction of left and right coiling machine, differential is carried out smooth through the steel plate passage upper metal texturing roller 2 and lower metal texturing roller 3, then be wound on right coiling machine 7 through right guide roller 6, be again rolled into the hot-rolled sheet coil raw material 9 after rust cleaning.
In differential formation process, upper and lower metal texturing roller acts on hot rolled sheet metal surface with the pressure of 200t, realizes the smooth reduction ratio to hot rolled steel plate thickness 1%.Meanwhile, upper metal texturing roller rotating speed V1=330 m/min, with the speed difference Δ V1=V1-V=330-300=30 m/min of hot rolled sheet metal surface, forward frictional heat rolled steel plate upper surface.Lower metal texturing roller rotating speed V2=270 m/min, with the speed difference Δ V2=V2-V=270-300=-30 m/min of hot rolled sheet metal surface, reverse friction hot rolled sheet metal surface.Speed difference Δ V2 equal and opposite in direction, the direction of now going up the speed difference Δ V1 of metal texturing roller and hot rolled steel plate and lower metal texturing roller and hot rolled steel plate are contrary.Under the effect that 2 texturing roller differentials are smooth, hot rolled sheet metal surface is rolled and is rubbed rust cleaning, destroy the iron scale being adhering closely to hot rolled sheet metal surface with erasing, remove hot rolled sheet metal surface spot (aberration and color spot) and various blemish (cut, pockmark and roll marks etc.) simultaneously.
The texturing roller that can more renew after texturing roller uses and is to a certain degree worn, can be processed texturing and Reusability again by the texturing roller changed.
Claims (1)
1. the device of the smooth rust cleaning of hot rolled steel plate differential, comprise left coiling machine (4), right coiling machine (7), left guide roller (5) and right guide roller (6), it is characterized in that: described device is provided with 1 ~ 3 four roller planisher (10) or six roller planishers, described four roller planishers are equipped with metal texturing roller (2), lower metal texturing roller (3), upper backup roll (11) and lower backing roll (12); Be steel plate passage between upper metal texturing roller and lower metal texturing roller, upper metallic support roller is positioned on metal texturing roller, and lower metallic support roller is positioned under lower metal texturing roller; Described six roller planishers increase upper metal intermediate calender rolls and lower metal intermediate calender rolls than four roller planishers, and upper metal intermediate calender rolls is contained between upper backup roll and upper metal texturing roller, and lower metal intermediate calender rolls is contained between lower backing roll and lower metal texturing roller; Described upper metal texturing roller (2) and lower metal texturing roller (3) are respectively driven by a motor, upper metal texturing roller and lower metal texturing roller energy forward and rotate backward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420072979.9U CN204220677U (en) | 2014-02-19 | 2014-02-19 | The device of the smooth rust cleaning of hot rolled steel plate differential |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420072979.9U CN204220677U (en) | 2014-02-19 | 2014-02-19 | The device of the smooth rust cleaning of hot rolled steel plate differential |
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| Publication Number | Publication Date |
|---|---|
| CN204220677U true CN204220677U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420072979.9U Expired - Fee Related CN204220677U (en) | 2014-02-19 | 2014-02-19 | The device of the smooth rust cleaning of hot rolled steel plate differential |
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| CN (1) | CN204220677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831317A (en) * | 2014-02-19 | 2014-06-04 | 余沐辉 | Method and device for differential leveling and rust removing of hot-rolled steel plate |
-
2014
- 2014-02-19 CN CN201420072979.9U patent/CN204220677U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831317A (en) * | 2014-02-19 | 2014-06-04 | 余沐辉 | Method and device for differential leveling and rust removing of hot-rolled steel plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20210219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |