High oil temperature of quenching heat treatment furnace

High oil temperature of quenching heat treatment furnace

When quenching with high flash point and ignition point, the temperature of the oil will rise instantaneously. If the flash point and ignition point of the oil are low, ignition may occur. Therefore, the quenching oil should have a higher flash point and ignition point. Usually the flash point should be 60-80°C higher than the used oil temperature. Good thermal oxidation stability Quenching oil is used under severe conditions of high temperature and continuous operation for a long time. The oil is required to have good anti-oxidation, anti-thermal decomposition and anti-aging properties to ensure the cooling performance and service life of the oil.

Quenching heat treatment furnace

The quenching oil used is semi-synthetic oil (mineral oil plus synthetic oil, it is the special quenching oil of various brands), synthetic oil (synthetic, special quenching oil of various brands). Overview Quenching oil is a kind of process oil. As a quenching medium. Quenching oil needs to have the following characteristics: Introduction to characteristics Good cooling performance Cooling performance is an important performance of the quenching medium, and its quality directly affects the quality of the quenched parts. Good cooling performance can ensure that the quenched parts have a certain hardness and qualification. The metallographic structure can prevent parts from deforming and cracking.

Roller hearth quenching furnace shape

The roller-hearth quenching furnace is rectangular and overhead, with the furnace mouth facing downwards, and the quenching water tank is facing the furnace mouth. The pushing trolley walks back and forth on the ground with guide rails. During normal operation, the workpiece is loaded into the trolley material frame and pushed by the trolley. Go to the bottom of the furnace mouth and use two chains to hoist into the middle of the furnace for heating. In order to simplify and speed up the construction of the kiln and improve the integrity of the lining, the new refractory lining products that replace the traditional heavy refractory materials have been withdrawn, which has promoted the progress of the kiln masonry technology.

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