Welding repair of casting block valve
Because of its low manufacturing cost and good comprehensive performance, steel castings are often used in the plug valve of […]
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valve casting
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Welding heat treatment and inspection of casting valve plug
A temperature controller is used for welding preheating and post weld heat treatment. The output number corresponds to the output
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Welding requirements for plug valve of casting valve
The welding method is manual arc welding, welding material grade tgs-9cb, welding rod diameter 3.2 mm, welding current 90-120 a,
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Welding repair technology of casting valve plug
Defect excavation and repair On site, electric grinding wheel is used to eliminate defects, and the metal luster is exposed
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Practical application of welding repair technology for casting plug valve
The boiler equipment of 3 × 350 MW supercritical unit in a power generation company is provided by Dongfang Boiler
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Welding repair of casting block valve
Welding preparation (1) in order to prevent the hardened layer and carburized layer produced in the repair welding groove during
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Welding technology of casting block valve
The 2 × 330 MW subcritical boiler unit of an aluminum Power Generation Co., Ltd. is sg-1170 / 17.5-m722. It
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Structural characteristics of high temperature resistant blind valve
The high temperature resistant blind valve is suitable for the gas pipeline of the producer. Producer gas is coarse hot
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Over flow area of casting valve body for globe valve
The stop valve has five over-flow areas that need attention. According to the flow direction sequence, they are end channel
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Processing technology of casting valve body for globe valve
The independent valve seat of the globe valve is usually connected by welding. Because the welding rod should go deep
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Construction standard for cast body of globe valve
According to the current standard API 623-2013 “steel globe valves – Flanged and butt welded ends, bolted bonnet”, bs1873-1975 “steel
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Structure design of casting valve body for globe valve
Stop valve is an indispensable fluid control product in modern industry, which plays a role of cutting off and throttling
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Prospect of the influence of casting defects on the strength of hydraulic valve body
On the basis of the existing research, there are still many works to be further improved and upgraded. In particular,
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Analysis of the numerical simulation results of the casting process of the double hydraulic valve body
1.Simulation results and analysis of filling process The filling process of multi way valve casting is as shown in the
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Analysis of the influence of casting defects on the strength of hydraulic valve body
The hydraulic valve is an essential component in the hydraulic system. The performance of the hydraulic valve determines the performance
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Numerical simulation of casting process of two hydraulic valve body
1.Casting system model of double hydraulic valve body The design method of the valve body gating system is similar to
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Effect of casting defects on the strength of hydraulic valve body
Taking the simplified one hydraulic valve body and the two multi way valve body for loader as the research object,
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Effect of Material on Defects in Cast Valve Body
The drawing shows the shrinkage pore distribution of a series of hydraulic valves made of steel-304 stainless steel with casting
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Effect of pouring temperature on defects of cast valve body
The figure shows the maximum porosity of a hydraulic valve body with cast material of QT500-7 as a function of
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One-way fluid-solid coupling calculation of ideal multi-way valve body
Data transfer in the process of fluid-solid coupling (FSI) calculation is to transfer the simulation results of flow field (pressure,
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Flow Field Simulation Analysis of Ideal Cast Multiplex Valve
1. Simulation Model Fig. 1(a) shows the connection of each spool in the right position of the bucket union valve.
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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
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Analysis of numerical simulation results of valve body casting defect formation
1.Simulation results and analysis of filling process The filling process of the casting is shown in the figure. It can
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Calculation of casting time t of cast hydraulic valve body
The casting quality will be seriously affected by the length of pouring time. The shorter the pouring time, the faster
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Research on Casting of Hydraulic Valve Body
Mi Guofa et al. of Henan University of Technology simulated flow field, temperature field and stress field of valve body
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Gauge for average hydrostatic head Hp of cast hydraulic valve body
In order to facilitate engineering calculation, there are usually two assumptions when calculating the average hydrostatic head height Hp: (1)
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Casting valve body of multi way valve based on one way fluid solid coupling
Multi way valve is mainly used in various construction machinery, lifting and transportation machinery and other traveling machinery for centralized
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Strength calculation and analysis of improved hydraulic valve body with shrinkage cavity
1. Casting valve body model with shrinkage cavity and calculation parameters There are two shrinkage cavities in the valve body
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Research status on casting of hydraulic valve body
Yang Jinsong and Yu Lihua of Huazhong University of Science and Technology have studied the process of sand core of
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Design of casting system for casting hydraulic valve body
The design of the pouring system is introduced by taking a combined hydraulic valve body as an example. The closed