In order to grasp the application of tool radius compensation in compound fixed cycle, example of workpiece chamfering processing in FANUC-0I MATE TC CNC lathe is compared, and the error is analyzed by Shanghai Yulong CNC machining simulation software, coming to reasonable using method of tool radius compensation in the compound fixed cycle G71,G70.

Realization of decoding fixed multiple repeating function for lathe CNC system;

Application Skills to FANUC NC System's Fixed Cycle Instructions on Cone;

Made use of the TCL language to compile fixed cycle and helical engage in the postprocessing document so that advance.

Designing post processing program of fixed processing cycles of drilling holes for SINUMERIK-810D/840D system;

This paper introduces the patent design optimization of the chamber and grate of combined circulated hot-water boiler developed and designed by Harbin Institute of Technology,and achieving shut-down compensation,dereasing boiler height and saveing cost by appling combined circulation.

The problems existed in operation of the water-fire tube shell hot water boiler of large capacity were analyzed, and the technical principle and structural characteristics of the water-fire tube shell hot water boilers of large capacity with combined circulation ,which are for solving the problems mentioned above, were presented.

In the paper,the design principles for the hot water boiler of large capacity were analyzed and discussed,and the technical principle and the structural characteristics of the water tube hot water boiler of large capacity with combined circulation,which is designed recently according to the design principles mentioned above,were presented.