When using bolts and nuts in a high temperature environment, the following matters need to be paid attention to: Choose the right material: The high temperature environment has higher requirements for the material of bolts and nuts. Generally speaking, stainless steel, alloy steel and superalloy are commonly used high temperature resistant materials. According to the specific temperature and medium conditions, select the appropriate material to ensure the stability and reliability of bolts and nuts. High temperature lubricant: In a high temperature environment, the working temperature of bolts and nuts will increase, and the friction will increase. In order to reduce friction losses, the thread surface can be coated with a high-temperature lubricant to provide good lubrication and reduce the risk of wear and thread sticking. Safety clearance design: Due to the high temperature environment, the possibility of bolt loosening is increased. Therefore, appropriate safety clearance should be considered in the design to allow the bolt to have a certain fault tolerance during the process of thermal expansion and cold contraction. Reinforced structure design: In high temperature environment, due to the influence of thermal expansion and contraction, bolts and nuts are easy to be loosened by temperature changes. In order to increase its fixing force, anti-loosening devices such as focusing washers and disc spring washers can be used to ensure a firm connection. Regular inspection and maintenance: Bolts and nuts used in high temperature environments are susceptible to thermal stress and oxidation, so they need to be inspected and maintained regularly. Clean the oxide and dust accumulated on the surface in time, and pay attention to check the thread wear and corrosion, and replace the damaged bolts and nuts if necessary. In short, when using bolts and nuts in a high temperature environment, reasonable material selection, lubrication, design of safety clearance, strengthening of the structure and regular inspection and maintenance are important matters that need attention to ensure their reliability and stability under high temperature conditions.
