タイトルまたは説明

Drill pipe weld using inertial friction welding, the welding process is a solid, process parameters can be set up in advance, the whole process of welding parameters from real-time computer monitoring. the implementation of closed-loop temperature control of the entire seam. District welding products after heat treatment in strict accordance with the norms API SPEC 7 Magnetic particle inspection, ultrasonic inspection, surface hardness, coaxial and mechanical testing.