Study of the possibilities of using polymer agent Na-carboxymethyl cellulose for quenching rails and rall fastening components

Autor: Zakharov, A. V., Éismondt, Yu. E., Shcherbakova, L. P., Kolosova, É. L., Trunina, T. A.
Zdroj: Metal Science and Heat Treatment; April 1991, Vol. 33 Issue: 4 p294-299, 6p
Abstrakt: 1.An agent based on polymer Na-CMC is more sensitive to an increase in temperature than an agent based on PK-2. An increase in aqueous Na-CMC solution temperature leads to a marked reduction in the heat removal coefficient in the pearlitic transformation temperature.2.After quenching in 2.0–1.5% Na-CMC solution rails have a set of properties and structure close to similar characteristics obtained after bulk quenching in oil.3.The properties and structure of rail plates after quenching in 0.5% aqueous Na-CMC solution corresponds to the requirements of TU 232-49-89.
Databáze: Supplemental Index
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