A method for producing thin-gauge, low-alloy, high-strength checkered plates based on csp process

Abstract

The invention discloses a method for producing a thin-specification low-alloy high-strength diamond plate based on a CSP process. The method comprises the steps of 1, controlling heating temperature,specifically, the charging temperature and the tapping temperature are controlled; 2, controlling threading speeds, specifically, the different threading speeds are controlled according to different thicknesses of rolled finished products; 3, controlling rolling pressure, specifically, rolling force parameters are adjusted according to different thickness specifications; and 4, controlling roll shifting, specifically, after roll changing calibration is finished, circulating roll shifting from a zero point position with steps of 20 mm, 25 mm and 30 mm is started. According to the method, by controlling the heating temperature, the threading speeds, the rolling pressure, and the roll shifting and by adopting a laminar cooling mode for control, the pattern integrity and the plate shape of thelow-alloy high-strength diamond plate are ensured, the related standards and user requirements are met, the stable batch supply is formed, the production process is controlled stably, no production accidents such as scrap steel, and broken casting occur, and the stable batch production of the thin-specification low-alloy high-strength diamond plate produced by the CSP production line is realized.

Description

technical field [0001] The invention belongs to the technical field of checkered plate production and processing, and in particular relates to a method for producing a thin-gauge, low-alloy, high-strength checkered plate based on a CSP process. Background technique [0002] my country's pattern plate was first successfully trial-produced by Anshan Iron and Steel Co., Ltd. in the 1960s by semi-continuous rolling. It has developed into a typical hot-rolled product and a high-value-added hot-rolled product. It has the advantages of beautiful appearance, high surface friction, and good anti-skid performance. It is widely used in construction, transportation, shipbuilding, and machinery manufacturing. The shapes of checkered plates mainly include lentil-shaped, diamond-shaped, round bean-shaped, oblate-round mixed shapes, etc. Most of the checkered plates in the market are in the shape of lenticular. With the development of the domestic manufacturing industry, higher requirement...

AI Technical Summary

Problems solved by technology

[0004] Compared with the low-strength checker plate, in order to ensure the qualified checker height, the finished frame of the low-alloy high-strength checker plate must ensure a larger reduction rate and rolling pressure. When producing thin gauges, the belt threading speed is fast, Coupled with the hindering effect of the pattern groove, it is not conducive to the stable rolling of the pattern plate

[0005] When rolling thin-gauge, low-alloy, high-strength patterned plates, the rolling pressure of the patterned roll frame is high and the speed is fast, which will have a large impact on the pattern grooves, which will easily cause damage to the grooves and cause the patterns to break; the patterned plates are rolled with flat rolls, Due to the single width of continuous casting and rolling, the patterned roll is prone to uneven wear of the same width of the strip, which is likely to cause stress concentration, damage to the edge pattern groove, and pattern breakage

[0006] Due to the presence of patterns on the surface, the water on the surface cannot be removed in time during laminar cooling, which may easily lead to uneven cooling and cause poor shape of the patterned plate after rolling, which will affect the leveling efficiency of the subsequent process

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