Product Introduction

    For UHV composite insulators such ad the 800 kV power line composite insulators , the technical specification requires the tear strength of UHV composite insulator umbrella sleeve material to be increased from 10kN/m to 12kN/m, and the elongation at tear from ≥150% to ≥200%. Our company further improves the water repellency, migration, recovery and durability of the umbrella sleeve material while ensuring the physical and mechanical properties and electrical properties of the vulcanized rubber.

    Our mold ejector mechanism is a side ejector system. Using the equipment under the ejector frame to jack up the mold bracket, the height of the ejector stroke is the height of the stroke of the equipment under the ejector frame to jack up, which can move in one time and completely separate the product from the mold cavity at the same time, reducing the number of times and damage of the product bowing back. This structure is convenient to clean up the waste glue, and has a slide rail to move the product out of the mold, which is convenient to take out the product, reduce the chance of bumping the product and the mold, and improve the service life of the product mold.

Technica Date

Advantages

• The end fitting, the mandrel, the core rod, the high-temperature vulcanized silicone rubber sheath wrapped around the mandrel, and the end fitting are permanently sealed by bonding together under temperature and pressure through the action of the adhesive.
• “Concave-convex-concave” labyrinth seal path, up to 40 (±3) mm, compared with the traditional sealing structure, improved by 35% to 67%, effectively improving the end sealing performance.
• The convex structure of the metal attachment end is similar to the spherical surface, which can greatly reduce the electric stress concentration at the end of the metal attachment compared with the traditional right angle of the tip surface, avoiding the tip discharge, effectively overcoming the damage to the sheath and core rod caused by the discharge of the insulator end fitting, and improving the reliability of the end sealing structure under the operating condition of the insulator.
• Optimize the thickness of the silicon rubber material to ensure uniform vulcanization to ensure the quality and reliability of the end seal structure.