casting (form)
2.In this paper, through the semisolid die mould design of ferrous metal accessory lever,presented the main points in its design, researched the choice of die casting machine and material of form part and the design of die casting room? gating system and heating cooling system etc, gained the way of resolving problems.
3.This paper comprehensively introduces the production condition of overseas steckel mill and the characteristics and developing trend of the second generation of steckel mill? It specifically introduces the "coiling plate" technology which employs coil rolling to produce plate and the technology in which steckel mill and slab continuous casting machine are combined to form continuous?casting and continuous?rolling production line? The species of carbon steel produced by steckel mill, the composition of mill and the selecton condition are analyzed??
6.By virtue of the CAD software,the casting process of aluminum alloy rim is simulated to converge the analytical result in the form of steady state and watch the influence of the cooling water, chilled air initial temperature of dies and geometry molding of rim upon the casting shrinkage hole index of the rim.
7.Three-dimensional high-pressure spray slip casting method is to use three slip-casting pipes transporting water, gas and cement paste respectively, let high-pressure water and compressed air strike and demolish soil, mix cement paste with the soil and form solid bodies with osmotic coefficient 10 ~ 7 cm/s.
8.Based on feature modeling and feature recognition techniques, an architecture of DFM system for die casting products was propose and the manufacturability evaluation system was established with UGII/UFUNC Knowledge base for evaluation was built, where the knowledge were represented in the form of frame and rules Under the constraints of die casting process and production resources, improper design can be pointed out and corrected in the early design stage
10.Silylate-terminated polyurethanes with built-in hydrophilic sites were synthesized.When the polymer is dispersed in water,the silane alkoxy end-groups of the polymer undergo hydrolysis,followed by condensation to form a stable cross-linked aqueous dispersion.TEM studies indicated that with more incorporation of hydrophilic sites,the particle size of the dispersion decreased.It was also found that the film property depended on the particle size when the crosslinking density in particels was much higher.The average molecular weight of the elastically effective network chain Mc measured by swelling experiments shows fairly good agreement with the theoretical value of Mc.It was also found that the cross-linking density of the casting film may increase during the film formation and drying process.
