T/SDQE 010-2019 The quality of Tai Mountain, diesel engine crankshaft

Scope

Main technical content: With the gradual strengthening of national environmental protection efforts, the Ministry of Ecology and Environment requires that fuel vehicles nationwide implement the National VI emission standards by July 1, 2021. The government encourages regions with conditions to implement the National VI standards ahead of schedule. The strict emission requirements pose a great challenge to heavy-duty diesel engines, and major engine manufacturers are currently actively developing National VI heavy-duty diesel engine models. Compared with previous models, the National VI heavy-duty diesel engines have extremely high precision in the matching of crankshafts and bearing shells, a more compact design, and higher compression ratios. At the same time, to meet environmental protection requirements, the bearing shells have been changed to lead-free ones, with increased hardness and reduced lubricity, which easily leads to bearing failure. Therefore, the processing precision of crankshafts has become even more stringent. To meet the constantly increasing performance and reliability requirements of heavy-duty diesel engines, Tianrun Company continuously carries out process innovation and technology research and development, thereby improving the key technical indicators of heavy-duty crankshaft products and forming the National VI heavy-duty diesel crankshaft product standards. These standards not only meet all the reliability requirements of National VI heavy-duty diesel engines such as Weichai WP13, but also place the company's technical indicators at the forefront of the industry and lead the technological development of the industry.

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