At present, our country mainly relies on the imported wear-resistant welding wire, although its performance can meet the requirements, but the price is too high. It is urgent for many domestic enterprises to achieve the localization of high-performance drill pipe wear-resistant belt surfacing material.
Heavy weight drill pipe all have high flexural strength, solid welding and other characteristics, can satisfy the requirement of linearity when drilling deep hole, high fatigue strength and long service life, and all the products have to undergo a rigorous screening such as wound, thin wall, eccentric wear, severe wear thread are out of the quality of maximum security products, today Xiaobian about drill rod fracture.
