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The roll model usually consists of two parts, one is the diameter of the roll and the other is the width of the roll. Taking cold-rolled strip steel rolls as an example, the roll model is generally expressed as "Ф450×1000". Among them, "Ф" means the roll diameter, "450" means the roll diameter is 450 mm, and "1000" means the roll width is 1000 mm.
2. Classification of roll models
According to the different positions and functions of the rolls used in the rolling process, the roll models can be divided into work roll models and backup roll models. Among them, the work roll model represents the roll that plays a major role in material processing, and the backup roll model represents the roll that provides support or protection for the work roll.
3. Selection of roll model
When selecting the roll model, it is necessary to comprehensively consider factors such as the nature of the processed materials, the requirements of the processing technology, the needs of production capacity, and the type of rolling mill. Generally speaking, the larger the roll diameter and roll width, the higher the production efficiency; the better the roll surface treatment, the smaller the impact on the processed materials; the better the roll material, the longer the service life.
4. Precautions for roller models
When choosing a roll model, you need to pay attention to the following points:
- The selection of roll model should be carried out reasonably according to the specific working conditions, technology and requirements to avoid being too small or too large.
- The surface treatment of the roll should meet the requirements of the processed materials, and the smoothness, hardness, wear resistance and other indicators should meet the production requirements.
- The roll material should be selected with high strength, high hardness, high toughness and wear resistance.
- In order to ensure the quality and performance of the rolls, advanced processing technology and processes should be used in roll processing.
- All in all, when selecting a roll model, multiple factors such as working conditions, processes, and requirements need to be comprehensively considered to make a reasonable selection to ensure a balance between production efficiency, quality, and cost. At the same time, during the use of the rollers, regular maintenance and inspection of the rollers are required to ensure their safe and stable operation.
