2020-06-23 14:03:26 205

Quenching of steel products can use diluted PVA solution. Two kinds of Quenching agent used in the past :water and oil. Water quenching, steel cooling fast,the products are of high strength, but it is brittle and easy to crack, so short life; Oil quenching, cooling speed is slow, the hardness of the product is not high. The cooling rate of the partial Hydrolyzed PVA solution is between the water and the oil, and has the advantages of quick cooling rate, high strength and not easy to crack, and the performance can be adjust as per demand. Applicable PVA: 088-35,088-50,088-20,088-05; Applicable concentration: 0.05-0.3wt%


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