The influence of the water quality of continuous casting parts on the entire productionThe performance of continuous casting parts plays an important role in
The influence of the water quality of continuous casting parts on the entire production
The performance of continuous casting parts plays an important role in improving work efficiency, maintaining the entire operation process, and ensuring quality. If the water quality changes, it will inevitably affect the effect of production, so be extra careful and require operators to follow certain regulations.
1. The cooling water quality is soft water, which plays an extremely important role in continuous casting production, that is, accelerating the solidification of liquid molten steel in the copper mould tube into a safe shell with a certain thickness and shape. If water quality stability measures cannot be guaranteed, scaling, corrosion, and blockage will occur during normal production and operation.
2. If the water system is a semi-closed circulatory system, the calcium and iron content in the water quality is relatively high. Calcium and iron have a greater impact on adhesion and corrosion. At the same time, the existence of sufficient dissolved oxygen in the circulatory system will accelerate the corrosion of iron.
3. The smaller the water hardness, the better. Generally, it should not be greater than a certain value to reduce the generation of scale. The PH value of the water quality should not be too high, and the process requirement range is 7-9. Avoid excessive corrosion of the closed cover used for circulating water, especially the corrosive substances should avoid entering the circulating pool.
At the same time, in order to prevent water leakage, each time the continuous casting parts are online, a pressure test must be performed on the offline water pressure test bench, and carefully observe whether there is water leakage and maintain the pressure for a period of time. The pressure level must meet the online requirements, and only go online for production after confirming that there is no water leakage problem.
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