Working Principle of Cast Multiplex Valve for Loader
The figure shows the integral multi-way valve used in the loader. Besides the main valve body, it also includes two […]
The figure shows the integral multi-way valve used in the loader. Besides the main valve body, it also includes two […]
1.Simulation results and analysis of filling process The filling process of the casting is shown in the figure. It can
Liu Shuxun and others of Huazhong University of Science and Technology have carried out research on the phenomenon that the
The casting quality will be seriously affected by the length of pouring time. The shorter the pouring time, the faster
Mi Guofa et al. of Henan University of Technology simulated flow field, temperature field and stress field of valve body
In order to facilitate engineering calculation, there are usually two assumptions when calculating the average hydrostatic head height Hp: (1)
Multi way valve is mainly used in various construction machinery, lifting and transportation machinery and other traveling machinery for centralized
Based on the simulation of the valve body casting process, a hydraulic valve body model with casting defects is established
1. Casting valve body model with shrinkage cavity and calculation parameters There are two shrinkage cavities in the valve body
Yang Jinsong and Yu Lihua of Huazhong University of Science and Technology have studied the process of sand core of
The design of the pouring system is introduced by taking a combined hydraulic valve body as an example. The closed
1. Grid division In the AWB platform, the patch independent method is used to divide the tetrahedral mesh. At the
As one of the key components in the hydraulic transmission system, the working environment of the hydraulic valve is extremely
The hydraulic valve body of MXA-300 shearer is designed and manufactured by means of casting oil duct in coal mine
The so-called pouring system refers to the general name of the channel that guides the molten metal into the mold
Although the shape of the hydraulic valve body casting is simple, its quality differs greatly and the section structure is
With hydraulic valve body as carrier, the filling and solidification process of valve body casting were studied by combining theoretical
As a high load precision machinery, hydraulic components not only need to achieve accurate hydraulic transmission and control, but also
Hydraulic valves are subjected to complex and variable loads during their operation. Therefore, the strength of the valve body must
As one of the key components in the hydraulic transmission system, the working environment of the hydraulic valve is extremely
Based on one hydraulic valve body and two hydraulic multi way valve body, the design method of casting and pouring
Hydraulic casting valve is the main component of hydraulic system, which controls the pressure, flow and direction of oil in
The performance of clay sand determines the quality of casting in casting production.During the production of the moulding production line,
In the process of casting simulation, the pouring system, grid division and calculation conditions are the same as the above,
The filling process of liquid metal is a non-isothermal flow process with heat loss and solidification.The metal fluid flow should
The main valve holes of multi-way valves, change-over valves and other valves are thin, with many oil grooves and different
1.Selection of gate valve body blank This method is suitable for the high pressure self tight seal gate valve body
The performance of clay sand moulding is affected by many factors, including used sand component raw sand, effective bentonite, effective
As an important teaching module of metalworking practice course, casting consists of sand casting, lost foam casting and 3D precision
Based on the analysis of simulation results, the casting process needs to be optimized to eliminate the casting solidification defects.