The invention provides a heating method for controlling
decarburization in a heavy rail billet furnace in a heat accumulation heating mode. The heating process comprises a pre-heating section, a heating section and a soaking section. A furnace
pressure measurement point is positioned at the pre-heating section; the full furnace is controlled at
positive pressure; when the billet temperature is controlled to be less than 1,000 DEG C, the
atmosphere in the furnace is oxidizing
atmosphere, and the air consumption coefficient is between 1.05 and 1.25; and when the billet temperature is controlledto be more than or equal to 1,000 DEG C, the
atmosphere in the furnace is weak
reducing atmosphere, the air consumption coefficient is between 0.9 and 1.0. Aiming at the operation and decarburizationcharacteristics of the heat accumulation
heating furnace different from the traditional
heating furnace, the segment control method is adopted on the
control aspects of atmosphere in the furnace and temperature, and a limit low-
oxygen concentration burning process is realized. The method has the advantages of low heated billet surface
decarburization, low oxidized burning loss, high furnace energy utilization, low
pollutant discharge, low production cost and the like, is simple, convenient and feasible, and can achieve good effect of saving materials and energy at the same time of improving the heating quality of products.