Method for rolling same cold-rolled steel strip with different thicknesses
A cold-rolled steel strip and the same technology are applied in the field of rolling different thicknesses of the same cold-rolled steel strip, which can solve the problems of raw material shortage and inability to provide test samples of the same material with different thickness specifications, and achieve a favorable comparison and performance Effect
Active Publication Date: 2021-12-07
BAOTOU IRON & STEEL GRP
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Problems solved by technology
[0005]
In order to solve the problem of repeated loading and unloading in the rolling process and the inability to provide test samples of the same material with different thickness specifications due to the shortage of raw materials, the purpose of the present invention is to provide a method for rolling different thicknesses of the same cold-rolled steel strip. During the rolling process, the rolling deformation area is changed by re-marking the stroke position of the tension cylinder multiple times, so that samples of various thicknesses can be obtained from the same cold-rolled raw material for comparative research on mechanical properties.
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Embodiment Construction
[0030] A method for rolling different thicknesses of the same cold-rolled steel strip, the cold-rolling experimental process is:
[0031] Pickling→Clamping and feeding→Pre-pressing→Tension setting→Linkage synchronization selection→Calibrating rolling area→Adjusting the reduction amount reciprocating rolling the first thickness→Re-calibrating the second rolling area→Adjusting the reduction amount reciprocating Type rolling to the second thickness → repeat the above process to roll to the Nth thickness → return the tension to zero → raise the roll gap → single action selection → release tension cylinder unloading → rolling is completed.
[0032] The specific technical scheme is as follows:
[0033] Using a four-high reversible experimental rolling mill, such as figure 1 Layout, supporting PLC control system, process machine and HMI human-machine interface system. The man-machine interface monitors the sample rolling process, changes the process parameters, and performs recipr...
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The invention discloses a method for rolling a same cold-rolled steel strip with different thicknesses. A reciprocating rolling process is employed, and a rolling deformation area is changed by re-marking the stroke position of a tension cylinder for multiple times, so that samples with various thicknesses are obtained from a same cold-rolled raw material and are used for comparative research on mechanical properties and the like. The method provided by the invention successfully realizes production of samples with different thickness specifications by using the same test material, and better facilitates performance comparison.
Description
technical field [0001] The invention relates to the field of steel rolling control, in particular to a method for rolling different thicknesses of the same cold-rolled steel strip. Background technique [0002] At present, the patent application number 201310478174.4 discloses a rolling method of cold-rolled steel strip. In this invention, a straightening machine is installed to straighten the strip head before the original rolling mill arch, and a CPC centering device is installed on the uncoiler to center the strip into the rolling mill arch for rolling. For a six-high rolling mill with positive and negative roll bending functions, an AGC hydraulic pressure reduction control system is added to the main rolling mill, and one X-ray thickness gauge is installed before and after the main rolling mill, and one is installed before and after the main rolling mill. There is a vacuum degreasing device, and two upper and lower exhaust knives are respectively installed before and af...
Claims
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Login to View More IPC IPC(8): B21B1/32B21B37/26
CPCB21B1/32B21B37/26Y02P70/10
Inventor 王海明史超张建发王少炳丰小东
Owner BAOTOU IRON & STEEL GRP