How to improve the life of the DTH drill pipe? It is mainly considered from the production process, including forging, machining, heat treatment, surface strengthening, anti-corrosion treatment, etc.

　　With the development of drilling rig equipment to high power and high frequency, it is imperative to comprehensively improve the life of DTH drill pipes.

　　1. The mechanical structure is improved to reduce the damage stress acting on the drill pipe;

　　2. Improve the comprehensive performance and production technology level of the drill rod to ensure the high quality and service life of the drill rod;

　　3. Properly maintain the drill pipe.