1 ) the same level hot top casting plate with a uniform flow distribution plate for the top mold multiple hot link , so that the entire casting tray liquid metal within the mold at the same level of height , because the filtered liquid aluminum In the entire casting tray at the same level , the flow of liquid aluminum are formed in the alumina film under the original flow , to prevent the oxidation of secondary pollution and burning metal .
2 ) At the same time , to take full advantage of the horizontal plane , the mold can be designed into the mold dense array of short , multi-casting rod .
3 ) Since a large amount of liquid aluminum , aluminum cooling fluid along the less , can reduce the casting temperature , the crystallization undercooling large , high rate of spontaneous nucleation , grain refinement . coupled with the inherent characteristics of the short mold , molten aluminum in the Mold height of the effective crystal hot top casting more general shorter , lighter fluid hole depth , casting rods segregation layer thinner , more uniform grain size , smoother appearance .
4 ) The device uses the whole assembly , that the casting platform and positioning of the dummy seat combination with each other in advance ,and then install the casting machine with tilting body on the chassis , and the rope or hydraulic lift columns supporting the use of lead . |
