CN1307010C - Hot-rolled patterned steel sheet production method - Google Patents

Abstract

The present invention relates to a method for producing hot rolling pattern plates. The present invention optimizes a descaling system by increasing heating temperature; thereby, the temperature of a finish rolling outlet is improved, the plastic property of steel is improved, and the formability of patterns is improved. The pattern processing depth of pattern rollers is enlarged, the area of patterns is increased, and the forming resistance of patterns is improved; thereby, the pattern height of pattern plates is correspondingly improved, and the reduction rate of machine frames of pattern rollers is lowered. The present invention can effectively improve the yield and the quality of pattern plates and has obvious economic benefits.

Description

A kind of hot rolling diamond plate production method

One, technical field

The present invention relates to a kind of hot rolled plate production technology, particularly a kind of hot rolling diamond plate production method.

Two, background technology

The general 2.8mm of the maximum texturing degree of depth of the new roller of all patterned roll of diamond plate is produced in present domestic hot rolling, use this patterned roll, patterned roll frame reduction ratio is 22～25%, could guarantee to roll out the decorative pattern height that thickness is substrate thickness 20%, to be exactly that draught pressure is obviously bigger than normal, template is wayward, the patterned roll decorative pattern often takes place peel off the weak point of this rolling mill practice, causes patterned roll to lose efficacy; And thickness be difficult to produce less than the diamond plate below the 4.0mm, and influences output and quality.

Three, summary of the invention:

The present invention is in order to reduce the output and the quality of patterned roll frame reduction ratio, raising diamond plate, a kind of new hot rolling diamond plate production method has been proposed, mainly start with: one, improve heating-up temperature, optimize the de-scaling system, thereby improve the finish rolling outlet temperature, improve steel plasticity, improve the decorative pattern mouldability from two aspects; Two, strengthen patterned roll the processing patterns degree of depth, increase pattern area, improve the decorative pattern shaping resistance, thereby corresponding raising diamond plate decorative pattern height, reduce patterned roll frame reduction ratio.

A kind of hot rolling diamond plate production method, concrete process is as follows:

1, de-scaling system: drop into 3 groups of de-scaling points

2, roughing outlet temperature: 1070 ± 30 ℃

3, finish rolling outlet temperature: 890 ± 20 ℃

4, cooling water is closed between finishing stand

5, the patterned roll texturing degree of depth is 4mm

6, patterned roll frame reduction ratio is controlled at 12.5%-16%.

The present invention compares with original technology, and the diamond plate profile is more elegant in appearance, and patterned roll frame reduction ratio can be reduced to below 16%, and minimum can reach 12.5%, and the decorative pattern height can meet or exceed 20% of substrate, satisfies national standard; Because reduction ratio is similar with rolling when flat board, template is better; Draught pressure obviously descends, and minimum production thickness can reach 2.5mm; Rolling class produces and the diamond plate quality is significantly improved.

Four, the specific embodiment

Embodiment 1: adopt following concrete process during rolled diamond plate:

1, de-scaling system: 1 group on VSB roller, 1 group on R1 roller, 1 group on F0 roller;

2, roughing outlet temperature is controlled at 1100 ℃;

3, finish rolling outlet temperature is controlled at 900 ℃;

4, cooling water is closed between finishing stand;

5, the patterned roll texturing degree of depth rises to 4mm by 2.8m.

Adopt patterned roll frame reduction ratio of the present invention to be reduced to 14%, the diamond plate good looking appearance that rolls out, the decorative pattern height surpasses 20% of substrate, satisfies national standard; Because reduction ratio is similar with rolling when flat board, template is better; Draught pressure obviously descends, and minimum production thickness can reach 2.5mm; Rolling class produces and the diamond plate quality is significantly improved.

Embodiment 2: the roughing outlet temperature is controlled at 1070 ℃; The finish rolling outlet temperature is controlled at 890 ℃; Reduction ratio is 13%, and all the other are identical with embodiment 1.

Claims (1)

1, a kind of hot rolling diamond plate production method, concrete process is as follows:

(1), de-scaling system: drop into 3 groups of de-scaling points;

(2), roughing outlet temperature: 1070 ± 30 ℃;

(3), finish rolling outlet temperature: 890 ± 20 ℃;

(4), cooling water is closed between finishing stand;

(5), the patterned roll texturing degree of depth is 4mm;

(6), patterned roll frame reduction ratio is controlled at 12.5%-16%.