Development and innovation of ductile iron nuclear spent fuel transport container
1.For the first time in China, the research and production of 100 ton ductile iron nuclear spent fuel container was […]
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Research methods of large section ductile iron castings
The wall thickness of 100 ton ductile iron nuclear spent fuel container is 520 mm, the hot spot is over
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Establishment of the coordinate system of mold geometry error and surface morphology in roller and centrifugal casting
Establish the coordinate system origin 0 as shown in Fig. 1, which coincides with the center of the left roller,
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Research methods of large section ductile iron castings
(1) Modulus method: in 1986, when Lin Rui of Harbin University of science and technology was developing the large section
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Construction of mould geometry error and surface morphology dynamic model for roller and centrifugal casting
There are two types of excitation on the rotor of rotating machinery, one is the excitation force acting on the
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Solidification characteristics of large section ductile iron castings
Large section ductile iron has large wall thickness, heavy weight and long solidification time, especially at the center or hot
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Construction of mold dynamic model of centrifugal casting machine and comparison of performance test results and theoretical results
In the theoretical calculation, the theoretical model is still consistent with the model described, but in the programming calculation, some
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Research on ductile iron nuclear spent fuel container in China and abroad
Compared with the development of ductile iron nuclear spent fuel container at home and abroad, in the development of 100
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Dynamic model construction and performance test verification of centrifugal casting machine
In order to verify the correctness of the theoretical model in this chapter, an experimental device for vibration measurement of
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Calculation of unbalance response of centrifugal casting machine mold
There is an eccentric mass on each section along the axis of the mold. The eccentric mass on the i-th
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Research status of ductile iron nuclear spent fuel container in China
In 1991, Gong Jinying of Qiqihar Institute of light industry studied the relationship between the micro fracture morphology and mechanical
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Calculation results of critical speed of mold for centrifugal casting machine
Through programming calculation, the first four critical speeds of centrifugal casting machine can be obtained. It can be seen that
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Research status of ductile iron nuclear spent fuel container in Japan
The purpose of jsri and Nippon Steel is to develop and produce the ductile iron nuclear spent fuel container with
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Compensation method for dimension error of typical complex parts in rapid investment casting
Through the description of complex parts structure and reverse engineering. This paper mainly studies the application of reverse engineering technology
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Calculation results of mold support stiffness and damping of centrifugal casting machine
Taking the horizontal roller supported centrifugal casting machine of an equipment manufacturing Co., Ltd. as an example, the vibration performance
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Research status of ductile iron nuclear spent fuel container in Germany
Siempelkamp company of Germany began to develop 100 ton ductile iron nuclear spent fuel container in 1987. During the development
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Selection principle of internal fork type pneumatic actuator for ball valve
The influencing factors of ball valve torque mainly include pressure, temperature, medium type, property and quantity of suspended substance in
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Types of spent fuel storage and transportation vessels and advantages of ductile iron vessels
The metal container for dry storage is the key equipment for the transportation and storage of spent fuel, and it
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Type of built-in fork type pneumatic actuator for ball valve
The built-in fork type pneumatic actuator (Fig. 1) replaces the gear rack of the traditional rack pneumatic actuator with the
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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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Experimental study on nodular cast iron sector test block for nuclear spent fuel container
1) The self-developed 16 channel temperature measuring device was used to successfully collect the temperature curves of 45 ° fan-shaped
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Types of external fork type pneumatic actuator for ball valve
The external fork type pneumatic actuator is also divided into double acting type and single acting type, which is composed
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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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Study on size error transfer from wax pattern to casting
The best wax dipping process was adopted, and the sample after wax dipping was used as wax pattern. The ceramic
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Types of rack and pinion pneumatic actuators for ball valves
Rack and pinion actuator is the most commonly used pneumatic actuator. The middle of the cylinder is connected with the
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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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Dynamic torque characteristics of ball valve during opening and closing
The structure and operation characteristics of the ball valve determine that the opening torque of the ball valve is unbalanced,
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Dimensional error from prototype to wax pattern in SLS rapid investment casting
The wax impregnation process plays an important role in improving the strength and surface quality of the specimen. According to
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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