Recently, Sany Heavy Industry Co., Ltd. has successfully researched and developed 3G high wear-resistant pipes, and such new pump pipe's average pumpage exceeds 30,000 cubic meters, with a service life of up 100% to 200% over the traditional pump pipe. Successful R & D of the wear-resistant pipe further advances Sany's core competitiveness in pump products.
Traditional transmission pipes are made of a single-tier wear-resistant steel pipe, with special grinding-hardened techniques being employed to improve the inner-wall's wear-resistant performance. However, the overall quenching technique is comparatively complicated, and the grinding-hardening time is hard to control, which will lead to unstable wear-resistant performance. Likewise, while advancing the wear-resistant performance of the pipe's inner-wall by employing grinding-hardening techniques, the pipeline's overall tenacity will decrease, with friability being increased accordingly; in this case, the pump pipe is subject to fracture and break.
Compared with traditional pump pipe, Sany's 3G high wear-resistant pump pipe has different strengths The new pump pipe employs a brand-new double-tier pipe design philosophy, which overcomes disadvantages in traditional pump pipe production, such as complexity, hard control, instability and other negative influences. Sany employs high wear-resistant steel pipes such as the inner wall, and a high-tenacity steel pipe as the external wall, in order to offset the traditional pump pipe s weaknesses and ensure the new pump pipe's stability, wear-resistant performance and tenacity.
Additionally, while employing a double-tier pipe, Sany introduced internationally advanced pipe-production equipment, which fully ensures the combined precision of inner pipe and external pipe, and narrows the clearance between inner pipe and external pipe, in an effort to reduce shock and prolong the pump pipe's service life.
