1. Temperature uniformity standard of continuous tempering furnace
Furnace temperature uniformity refers to whether the furnace temperature distribution in each area of the continuous tempering furnace is uniform. Temperature uniformity in a continuous tempering furnace is usually evaluated using a temperature difference or furnace temperature deviation. It is more commonly used to evaluate the temperature uniformity of the furnace by the difference between the temperature values at different locations in the furnace measured by thermocouples, and the commonly used standard is that the temperature difference does not exceed ±5°C. In addition, there are a number of other criteria for evaluating furnace temperature uniformity, such as the number of thermocouple measuring points, the distance between measuring points, etc., which are generally detailed in the operating instructions of the equipment.
2. The influence of furnace temperature uniformity on product quality
Poor furnace temperature uniformity will affect the quality of the product, which is manifested in the following two aspects:
1. The size of the product is deformed unevenly. If the temperature distribution in the continuous tempering furnace is uneven, it is easy to cause uneven deformation of the product size, and in serious cases, the product cannot be used normally.
2. Unstable mechanical properties. The uneven temperature distribution of the continuous tempering furnace will lead to the uneven structure of the steel, which will adversely affect the mechanical properties, such as fluctuations in strength, toughness, etc.
Therefore, in order to ensure product quality and improve production efficiency, the temperature uniformity of the continuous tempering furnace must meet the standard requirements. During the production process, the temperature uniformity of the furnace can be ensured by regularly checking the temperature distribution of the equipment, replacing faulty equipment, or maintaining the equipment.
