On the basis of the existing research, there are still many works to be further improved and upgraded. In particular, further research can be carried out from the following aspects: (1) Design different gating system of valve body, and determine the optimal gating system of valve body through simulation...
1.Simulation results and analysis of filling process The filling process of multi way valve casting is as shown in the figure. It can be seen from the figure that when the liquid metal just enters the cavity, i.e. before 5.5s, the filling is not stable, resulting in splashing and...
The hydraulic valve is an essential component in the hydraulic system. The performance of the hydraulic valve determines the performance of the whole hydraulic system. As the main part of the hydraulic valve, the valve body casting bears the high pressure load, and is also affected by the temperature...
1.Casting system model of double hydraulic valve body The design method of the valve body gating system is similar to that of a hydraulic valve body. The gating system uses two internal sprues to introduce the liquid metal into the casting cavity. Finally, it is calculated that the cross-sectional...
Taking the simplified one hydraulic valve body and the two multi way valve body for loader as the research object, the position and size of the defects in the casting process of the valve body were simulated and analyzed, and the strength of the hydraulic valve body with casting...
Liu Hanwu and others of North China University of Science and Technology studied the stress and strain of two-way cartridge valve under different pressures. The results show that the stress concentration occurs at the outlet side of the two-way cartridge valve. Wu Hao and Benseddiq Noureddine et al. analyzed...
Wang Min and others from Harbin Harbin Harbin Boiler Valve Co., Ltd. take DN300 and PN25 cast valve bodies as carriers and adopt the design details of valve parts of the plant as well as the design standards of Class I valves of American ASME Boiler and Pressurized Vessel...
Chen Yue of Beijing Jiaotong University studied the strength test process of fire fighting valve body by ANSYS, analyzed the relationship between wall thickness and stress-strain of valve body, and simulated the stress-strain of valve body under water flow impact by means of bidirectional fluid-solid coupling. Cao Guoqiang and...
Liu Shuxun and others of Huazhong University of Science and Technology have carried out research on the phenomenon that the matching clearance of hydraulic sliding valve is too small, and the valve body and spool are deformed under the action of pressure, temperature and other loads, which is very...
The casting quality will be seriously affected by the length of pouring time. The shorter the pouring time, the faster the pouring speed will be, the shorter the heat action time on the upper surface of the sand mold during filling can be reduced, thus reducing sand inclusion and...