Strength calculation and analysis of ideal hydraulic valve body before improvement
As one of the key components in the hydraulic transmission system, the working environment of the hydraulic valve is extremely […]
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.
According to statistics, the total production of castings in China is about 40 million tons, accounting for about two fifths
As a high load precision mechanical part, the hydraulic valve body has the requirements of high pressure resistance, fatigue resistance
Defect analysis is mainly based on shrinkage, shrinkage, depression or collapse. ProCast software is used to analyze shrinkage, shrinkage, depression
Because hot joints will occur in large and thick parts during the cooling process of castings, and casting defects such
The fracture morphology of the cast ti-48al-2cr-2nb alloy with total strain range δ ε (T) = ± 0.7% and service
After filling, in order to analyze casting problems such as subsequent solidification defects, the solidification temperature field is further analyzed.
Grain refinement is an important measure to improve the metallurgical quality of cast steel, and it has been a research
Introduce the model into ProCast software and divide it into grid. After dividing the grid, check the quality of the
Cylindrical billets are cut lengthwise on a 100 mm diameter billet and processed into equal-section samples with a working section
Thermomechanical fatigue is indispensable for evaluating the high temperature life of aero-engine components and is one of the key performance
Ti Al alloy has the advantages of high specific strength, specific rigidity, good high temperature oxidation resistance and creep resistance,
(1) First batch test The first batch of tests examined the interaction of rare earth oxides with refractories commonly used
The net weight of machine tool body parts is 1762.75 kg, and the overall contour size of parts is 1985
From the point of view of lattice mismatch, both CeO2 and CeS can be used as heterostructure nuclei of delta-ferrite
Machining centers are divided into horizontal and vertical machining centers according to the position relationship between the spindle and the
In the early stage, in the aspect of grain refinement of steels by adding rare earth elements, the research mainly
The surface of high nickel ductile iron samples during corrosion process was observed. The results are similar to that of
1) The blank of gate valve body is used to process the block valve to avoid opening the block valve,
As the isolation device of the overall hydraulic test of the boiler unit in the power plant, the hydraulic test