hull resistance
1.A METHOD FOR CAD OF HULL-LINES BY WAVE RESISTANCE THEORY WITH THE VARIATION OF PARENT FORMS
4.As intermediate paint with high rust resistance for hull coated with epoxy zinc-rich primer and inorganic zinc-rich primer. Outstanding compatibility with topcoat.
5.Abstract: By means of metallographical examination and SEM,the microstructure characteristics,macro-and microfractographs of the brittle broken wheel hull bolt of BJ212 automobile have been studied.The results show that the thin-headed screw,with excessively deep carbonitriding layer and hardening layer,has less resistance to brittle fracture in the thin area of its head.At the root of the head connecting the stem,a tensile stress may emerge owing to the non-even quenching stress.Those are the two reasons for low torque fracture of bolt.
