Quality control of coating for valve castings
1. Coating performance requirements The selection of different formulations, components and the proportion of various components have a great impact […]
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Computer simulation technology in the production of China large steel castings
Large steel castings have large size and long production cycle. They are generally produced in small batch or even single
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Heat treatment technology in the production of China large steel castings
After pouring of large steel castings, there are great differences in the cooling rates of different parts, appearance and core
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Characteristics of lost foam casting valve body
After nearly half a century of development, lost foam casting technology has gradually entered a mature stage. Its products have
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Study on Numerical Simulation of Lost Foam Casting
In recent years, with the development of casting numerical simulation technology, there are many research results in traditional pressure casting
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Determination of gate position of process gating system for box sand castings
According to the analysis of the simulation results of the original process scheme, the bottom pouring system of the original
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Improvement measures for main casting defects of waste valve castings
According to the causes of valve casting defects, we have taken improvement measures mainly from the following aspects: (1) Properly
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Development of valve casting industry in China
In recent years, the domestic pump and valve casting industry has developed rapidly, but there are still many problems in
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Study on key process of c12a valve casting
The crack defects can be greatly reduced and eliminated by improving the main key process methods in the manufacture of
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Casting technology in the production of China large steel castings
Large castings have long production cycle and complex processes. Generally, they have to go through many processes. Reasonable setting of
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Application status of computer simulation in Lost Foam Casting
Lost foam casting numerical simulation technology has become a powerful simulation and simulation technology, and goes deep into all aspects
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Research status of investment casting
As a material near net shape technology, investment casting has the characteristics of complex casting structure, high dimensional accuracy, wide
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Simulation innovation of lost foam casting process
1) Because of the complex physical and chemical reaction between the front of the molten metal and the foam pattern
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Impeller casting shape and size
The shape and dimension inspection of impeller casting is to check whether the actual dimension of impeller blank casting falls
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Metal material smelting technology in the production of large steel castings
Large steel castings in the fields of nuclear power, hydropower, thermal power and metallurgical equipment have strict service conditions and
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Main contents of numerical simulation of lost foam casting
The change of field in each stage of lost foam casting forming process is calculated accurately, so as to obtain
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Design of rapid investment casting
Rapid investment casting (RIC) is a production process of indirect additive manufacturing (I-am) metal parts formed by the combination of
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Simulation of lost foam casting process
It mainly studies the lost foam casting of gearbox box, first carries out three-dimensional modeling, then carries out linear repair,
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Casting technology of large complex impeller
In view of the current situation that the production quality of large and complex integral stainless steel casting impeller can
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Dye penetrant inspection for appearance quality of impeller castings
Due to the thin and large number of impeller blade castings, in order to further inspect the surface and near
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The gap between China’s large steel casting production enterprises and foreign advanced enterprises
Compared with industrial developed countries, there is a big gap in the production of large steel castings in China in
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Casting process and performance test results of mechanical bearing pedestal
1. Impact performance For the performance test of mechanical bearing pedestal, it can be found that the impact absorption of
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Sand casting process design of automobile engine parts
At present, sand castings inside passenger car engines mainly include cylinder block, cylinder head, bearing cover, exhaust pipe, valve cover,
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Research status of casting technology of large impeller
According to the number of blades of this kind of impeller, the complexity of structure and the technical requirements of
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Surface roughness inspection of impeller castings
The surface roughness of cast impeller refers to the micro geometric characteristics composed of micro spacing and peak valley on
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Visual inspection for appearance quality of impeller castings
The surface defects of impeller castings are first inspected by visual observation, in which a 5x magnifying glass is also
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Water glass sand casting molding
(1) Determine the position of the pattern in the casting sand mold Select a flat bottom plate and a sand
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Current situation of large steel casting production enterprises in China
There are more than 30 large-scale casting production enterprises in China, most of which are large and medium-sized state-owned enterprises.
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Water glass sand casting core making
As the water glass sand mold core is impacted and surrounded by high-temperature liquid metal, and the working conditions are
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Foundry sodium silicate sand mixed sand
Sodium silicate sand can be mixed by various sand mixers. The mixed sand shall be placed in a covered container