Research on Structural Strength of Hydraulic Cast Valve Body
Liu Hanwu and others of North China University of Science and Technology studied the stress and strain of two-way cartridge […]
Liu Hanwu and others of North China University of Science and Technology studied the stress and strain of two-way cartridge […]
The drawing shows the shrinkage pore distribution of a series of hydraulic valves made of steel-304 stainless steel with casting
ProCAST software uses finite element method to simulate heat transfer, filling flow process, thermal-stress coupling field, microstructure and shrinkage cavity.ProCAST
1.Partial differential equation for heat conduction: The solidification process of castings is a complicated phase transition process.Solidification is a dynamic
Wang Min and others from Harbin Harbin Harbin Boiler Valve Co., Ltd. take DN300 and PN25 cast valve bodies as
This control procedure is applicable to the routine pouring of the company and is used as the guidance document for
Operation procedure: Check whether the oil pressure, heat preservation temperature and operation button of the wax compressor are normal, and
The figure shows the maximum porosity of a hydraulic valve body with cast material of QT500-7 as a function of
Data transfer in the process of fluid-solid coupling (FSI) calculation is to transfer the simulation results of flow field (pressure,
1. Simulation Model Fig. 1(a) shows the connection of each spool in the right position of the bucket union valve.
Chen Yue of Beijing Jiaotong University studied the strength test process of fire fighting valve body by ANSYS, analyzed the
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