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When hardness can be sacrificed, mineral oils are often used. 0000076234 00000 n 0000012110 00000 n 0000019456 00000 n 0000076210 00000 n 0000086875 00000 n H�|WMo�6��W��{�"Q��n/h����^Gɸ��Yۓt��K��p�(�����#9�+Š��"�_+K������z���y��UߏaH�b�Ø!R+�)ˉ)�q���NjqB��bP����0i%��U�ӌ��O�"6�a�q ��WdC�Ċ\͉LE�"BXBS�ȅ�?d*�������Z�������\F���\F�N���n�К�\F���$xPd���l RPd�iKt*�l0)���`�f�C� 4���Pdð���l��7��s7�0���|����U���K�%C���9�|��oi==V�����w�7K�쾌�8u�L][O]�ө�=�xͬ��� [�~mɯ��s[p-��u!W~�(�c��5�8˹���֫)"_Ʋ�. This process gives troosite structure. 0000015624 00000 n Quenching and tempering is a heat-treatment method for high-quality heavy plates. 0000017264 00000 n %PDF-1.3 %���� 0000020355 00000 n 0000021966 00000 n Quenching and tempering provides the steel with high strength and ductility. 0000002514 00000 n Quenching and tempering consists of a two-stage heat-treatment process. hut 0000003031 00000 n What is oil quenching vs water quenching? 0000023466 00000 n 0000024848 00000 n 0000011971 00000 n This is work refers to the products which undergo quench & tempering process to improve mechanical properties and achieve harder microstructure. Quenching and tempering is a heat-treatment method for high-quality heavy plates. 0000020048 00000 n 0000037866 00000 n 0000010728 00000 n SC�� ��7��_s1u^����>��VJDn��9}j��~F&���8QF&f��Ą��(Q �D�0367��T�������Y`FNn~�QPX\VZR 0000019434 00000 n 0000013393 00000 n tempering kinetics model can be employed to simulate the tempering process of steel. (a) (b) Fig. So, the key difference between quenching and tempering is that the quenching is rapid cooling of a workpiece, whereas tempering is heat-treating a workpiece. Heavy plates made of thermomechanically rolled fine-grained structural steel. 0000073532 00000 n 0000096785 00000 n 0000017240 00000 n 0000001560 00000 n 0000086899 00000 n 0000164306 00000 n 0000014090 00000 n These oil-based fluids often oxidize and form sludge during quenching, which consequently lowers the efficiency of the process.