Sand hole defect of GEVO16 diesel engine cylinder block casting
GEVO16 cylinder block is the key casting of HXN5 locomotive diesel engine on the main line, with the main dimension […]
GEVO16 cylinder block is the key casting of HXN5 locomotive diesel engine on the main line, with the main dimension […]
Analysis of casting structure and casting process The main body of the lower half casting of the rear cylinder is
As the core part of diesel engine, the engine block carries all parts of the engine. Its working environment is
Casting hot spot refers to the local area of final solidification formed by the internal solidification speed being slower than
Nodular cast iron intake cylinder is one of the important parts in the front end of heavy duty gas turbine
30 casting samples of cylinder block were selected. The pouring information was counted, including the casting mass (unit: kg), pouring
The results show that the size of the cylinder block is qualified and there is no obvious defect on the
The technological principle of pouring system for cylinder body iron castings is: conveying liquid metal to the inside of the
In the process of pouring, cooling and solidification, the feeding liquid metal passes through the riser, riser neck and the
In the production practice, the shrinkage modulus method is mainly used to design the process riser to complete the feeding
The process statistics are as follows: (1) There were 14 cases of L-type engine block and 36 cases of V-type
As a key part of engine, cylinder block casting is one of the difficulties in engine production. The design level
1 Reagent Anhydrous sodium carbonate solid (analytical pure), sodium peroxide solid (analytical pure), nitric acid (analytical pure), sulfuric acid (analytical
There are many kinds of cast iron parts for engine block. The main classification methods are the number of cylinders
Working conditions of ICP inductively coupled plasma spectrometer The working conditions of ICP ICP ICP spectrometer are: high frequency power,
1 Sample weight If the boron content in ferroboron is high, the sample weight is too small, the weighing error
Boron (element symbol b) is a rich element in China. Boron is often known as the vitamin in steel. Trace
With the rapid development of social economy and the vigorous development of China’s shipbuilding, locomotive, construction machinery and other industries,
Based on the actual casting cases of cylinder block castings collected from domestic foundry enterprises, combined with the existing achievements
It has been proved by a lot of practice that the process design of gating system is the key problem
The State Key Laboratory of advanced forming technology and equipment of China Academy of Mechanical Sciences has systematically studied the
Large and medium-sized engine is an important power source of mechanical equipment, which is widely used in automobile, ship, engineering
00bob cylinder is the key pressure bearing high temperature steel casting of supercritical steam turbine. Its function is to separate
The poor machinability is a common problem of Engine Castings in China, and it is also the biggest gap between
Leakage refers to the leakage phenomenon of the cylinder block (cylinder head) during the pressure test (water pressure / air
Modern engines have very strict requirements on cleanliness. For cylinder block (cylinder head) castings, only a few grams (g) of
Usually in the inner surface or hot spot of the casting, such as the water jacket cavity of the cylinder
Sand hole is also a common defect of cylinder block (cylinder head) casting, which is often found on the upper
Porosity is usually the most common defect in cylinder block castings, which often takes the first place in the scrap
With the rapid development of China’s automobile manufacturing industry, many high-end automobile brands have been launched almost at the same