Questions and Answers about cold rolling production process

1. What are the requirements of the mill for incoming cold rolled sheet material?

Answer: 1) The chemical composition of steel should conform to the provisions of national standards.

2) The thickness and width of the incoming materials meet the requirements.

3) No oxide sheet on the surface, no cracks on the edge, etc.

4) No strip scratches, embossing, embossing, bubbling and delamination.

5) Strip steel without tower shape, loose coil, etc.

2. What are the main plate shape defects of cold rolled strip steel?

Answer: "Sickle bend", "wave shape", "ladle bend". There are many types of wave shape, such as one side wave, two sides wave, middle wave, two ribbed wave, periodic wave, local wave.

3. What influence does the shape defect have on the cold rolling process?

A: Bad shape has a great impact on the cold rolling process, bringing difficulties to the actual operation, serious scythe bend will cause deviated belt, and wave shape will lead to roller, broken belt accident, poor shape condition limits the speed improvement, thus affecting the production capacity of the mill, in addition, bad shape of the mill can be rolled out of small thickness is limited.

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Questions and Answers about cold rolling production process

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