How to solve the oil leakage of the thermal oil rotary joints?
impurities in thermal oil are one of the main causes of oil leakage in rotary joints. Therefore, before solving the problem of oil leakage in the rotary joint, it is necessary to first clean the heat transfer oil and the rotary joint. The specific method is as follows
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Installation sequence of rotary joint
The rotary joint should be installed correctly according to the installation and use instructions, otherwise its sealing performance and service life will not be fully utilized.
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Types of rotary joint
The threaded end connected metal hose joint is an extension product of JB/GQ0552-83 metal joint; The metal joint is made of zinc alloy material by die-casting, and the surface is galvanized, sandblasted, or chrome plated; Tight structure, no pores, high strength. Reliable connection with metal hoses, with a beautiful and elegant appearance
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Dismantling and maintenance methods for rotary joint
it is necessary to install, disassemble, and maintain it according to the correct method to ensure that the joint can operate normally and extend its service life. The scope of application of rotary joints varies and should be selected according to actual needs
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Wear characteristics of high-speed rotary joint
The materials used to manufacture high-speed rotary joints are quite special. Firstly, they must be resistant to high temperatures and friction, as high-speed rotation wears out quickly and friction generates heat
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Reasons for steam rotary joints leakage
One reason for steam rotary joint leakage is the spring and column ring.
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The purpose of rotary joint seal
The purpose of the seal in the rotary joint is to seal the connection and allow one of the two pipeline sections to rotate relative to the other. At the same time, in order to reduce the pressure drop across the connection. Therefore, it is best to place the rotary joint seal in the enlarged axial portion of the entire fluid bearing channel formed by the pipeline section
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The application of rotary joint in the steel industry
Application scenarios of rotary joints: cold rolling mills, hot rolling mills, hot rolling mills, steel mills, etc. printing industry
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The core steps of the inlet and outlet water connection of the rotary joints
Flexible pipes (such as metal hoses) must be used to connect the inlet and outlet, and it is prohibited Rigid pipe To compensate for the axial displacement and concentricity deviation of the rotary joint. The length of the hose should be sufficient to avoid twisting or excessive stretching
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How to replace the O-ring of the rotary joints
ensure that the equipment has stopped running and completely released the fluid pressure (water, oil, or gas) inside the joint. Disconnect the connector from the equipment and remove it from the spindle or pipeline. If the joint is equipped with a flange or threaded connection, use a suitable tool to loosen the fastener.
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The use of rotary joint in the rubber industry
Rotary joints are mainly used in rubber product production for fluid (steam, thermal oil, cooling water) pathways of rotating components such as internal mixers, open mixers, calenders, extruders, and vulcanization equipment
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Why do high-speed rotary joint need to be sealed with silicon carbide
Silicon carbide rings are sintered at high temperatures, and the flat surface is a mirror surface polished with diamond. The characteristics are high hardness, high temperature resistance, and friction resistance. Silicon carbide ring and graphite friction seal, because the powder nature of graphite produces a sealing ring effect. Impurities are difficult to enter the sealing end face
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