Thin-specification checkered plate smoothening method
A checkered plate and thin-gauge technology, applied in the direction of contour control, etc., can solve the problems of difficult rolling, difficult plate shape control, and affecting the use of checkered plates, so as to improve product quality, enhance product competitiveness and enterprise economic benefits, The effect of improving the shape quality
Active Publication Date: 2018-01-26
ANGANG STEEL CO LTD
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AI Technical Summary
Problems solved by technology
For checkered plate production, it is more difficult to roll thin checkered plate below 2.5mm, especially 1.7~2.0mm, mainly in the difficulty of plate shape control and large wave shape, which directly affects the use of checkered plate
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] A method for flattening thin checkered plates according to the present invention is suitable for checkered plates with a thickness below 2.5mm; including:
[0017] 1) Bean height control: according to the requirements of ordering standards or agreements for bean heights of patterned plates with different thicknesses, and the requirements of different thickness specifications for patterned bean heights, the reduction rate of the finishing mill at the end stand is strictly controlled, and the reduction rate is controlled at 16% to 18%; the roll gap of the pinch roller of the coiler is set according to 1.1 to 1.3 times of the checkered plate substrate;
[0018] 2) Selection of leveling cycle; the selection of leveling cycle of checkered plate is carried out before the support roll of the leveling unit is replaced and overhauled, and the leveling sequence is arranged from thick to thin according to the thickness specification of the steel plate;
[0019] 3) During the flatt...
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Abstract
The invention relates to a thin-specification checkered plate smoothening method which is suitable for checkered plates with the thickness smaller than 2.5 mm. The thin-specification checkered plate smoothening method particularly comprises the steps that (1) bean height control is carried out; (2) smoothening period selection is carried out; (3) in the smoothening period of the checkered plates,a straightening machine and a tension unit of a smoothening unit achieve the pressing straightening function, a pressing tail roller is not put in, and short connection treatment is carried out in a control program; (4) smoothening parameter selection is carried out; (5) measurement and adjustment are carried out; and (6) roller replacement and maintenance are carried out. According to the thin-specification checkered plate smoothening method, a smoothening technology is formulated for wavy defects of the thin-specification checkered plates, defects of single-edge waves, double-edge waves andthe like can be effectively eliminated, the accurate size and the good plate shape are obtained, and the product quality of the checkered plates is improved.
Description
technical field [0001] The invention relates to the technical field of production of hot-rolled strips, in particular to a flattening method for thin patterned strips. Background technique [0002] The patterns of the checkered plate are various, and the common ones are lentil shape, rhombus shape, round bean shape, oblate-round mixed shape and so on. Checkered plate has many advantages such as beautiful appearance, good anti-slip performance, strengthening performance, steel saving, etc. It is widely used in transportation, construction, decoration, floor around equipment, machinery, shipbuilding and other fields. Generally speaking, the user does not have high requirements on the mechanical properties and mechanical properties of the pattern plate, so the quality control indicators of the pattern plate are mainly the pattern formation rate, pattern height and pattern height difference. [0003] At present, the commonly used thickness specifications of checkered plates on ...
Claims
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IPC IPC(8): B21B37/28
Inventor 付青才张吉富于斌黄矿然李黎明
Owner ANGANG STEEL CO LTD