Method for improving impact strength of large high-strength high-toughness nodular cast iron diesel engine body
A technology of impact strength and diesel engine, which is applied in the field of cast iron casting and heat treatment, can solve the problems of insufficient impact strength of large high-strength ductile cast iron body, failure to reach the impact strength range of the body body in the cast state, and failure to reach the impact strength range of the body, etc.
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[0034] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0035] Aiming at the problems existing in the prior art, the present invention provides a method for improving the impact strength of a large high-strength ductile iron diesel engine body. The present invention will be described in detail below in conjunction with the accompanying drawings.
[0036] Such as figure 1 As shown, the method for improving the impact strength of a large-scale high-strength ductile iron diesel engine body provided by the embodiments of the present invention includes:
[0037] S101: According to the principles of high carbon equivalent, high carbon and low silicon, controlling Mn and S, limiting P...
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