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Why is the hardness of precision cold drawn pipe low?
During the production process of precision cold-drawn tubes, high-temperature salt bath furnaces are generally used for quenching and heating to achieve the deoxidation effect. However, complete deoxidation cannot be achieved in actual implementation. When it interacts with the carbon on the surface of precision cold-drawn tubes, insufficient hardness will occur.
In addition, the cooling rate during the quenching process has an important impact onPrecision cold drawn tubeThe hardness should also be very large. Usually, the slower the cooling rate, the more the hardness of the product decreases. In order to avoid the occurrence of this kind of phenomenon, salt bath deoxidation must be strictly carried out, and the cooling temperature and time must be strictly controlled to achieve the best product.