Modal analysis of gearbox shell casting of high horsepower tractor
The deformation mode of the structure is determined by the external vibration mode of the tractor, and the deformation mode […]
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Properties of nodular cast iron are improved by adding rare earth
In terms of high strength and low alloy nodular cast iron, in addition to copper and molybdenum, nickel and niobium
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Inspection results of gear heat treatment items
The influence of pre heat treatment on gear heat treatment deformation, and the results are analyzed according to the scheme
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Development history of vermicular graphite cast iron
In 1947, H. morrogh, an Englishman, discovered vermicular graphite in the process of studying the treatment of nodular cast iron
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Casting of tractor gearbox housing
In order to solve the problems of excessive mass and unreasonable stress distribution of gearbox shell castings of high-power tractors,
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Tractor gearbox housing
China is a large agricultural country, but it is not a powerful agricultural country. The contradiction between small-scale agricultural production
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Optimization of process parameters in mold filling and solidification process of sand casting
Determine the sand mold configuration, casting material and pouring mode, that is, these influencing factors have been determined; In addition,
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Main properties of nodular cast iron
Ductile iron castings have been used in almost all major industrial sectors, which require high strength, plasticity, toughness, wear resistance,
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Numerical simulation of sand casting
In China, the development of sand casting simulation technology is relatively late in China, but through the support of the
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Control of water glass to reduce sand hole and air hole defects of large steel castings
1. Quality control of sodium silicate. “Modulus, concentration” and “guest salt” (NaCI, Na2SO4, Na2CO3, etc.) are important parameters of sodium
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Properties of molding sand in sand casting
The material used to make sand mold is called molding material, the material used to make sand mold is customarily
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Failure analysis of bucket teeth of excavator
During the operation of the electric shovel, the bucket is the main working part. In the mining process, the bucket,
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Wet sand casting introduction
The basic raw materials of sand mold manufacturing are casting sand and molding sand binder. The most commonly used casting
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Development history of nodular cast iron
Nodular cast iron is a high-strength cast iron material developed in the 1950s. Its comprehensive properties are close to steel.
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Main factors for reducing sand hole and air hole defects of large steel castings and quality improvement scheme
1.How to control the pouring temperature? Since lowering the pouring temperature has so many advantages, how can we ensure smooth
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Prevention of sand sticking casting defects of excavator bucket teeth
(1) There should not be too much recycled sand in the core sand, because there are too many fine sand
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Yuchai Foundry Co., Ltd
Company profile: Yuchai Machinery Co., Ltd. is the largest professional diesel engine manufacturer in China. The foundry is its cost
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Development trend of foundry industry
More than 80% of the products in the foundry industry are made by sand casting, so we usually refer to
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Sand core type of sand casting
In order to ensure the quality of castings, the core used in sand casting is generally dry core. The clay
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Bucket teeth of mining excavator
Bucket teeth are the key vulnerable parts of mining excavators. Their working objects are generally ore, rock or soil. The
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Mining electric single bucket excavator
China has a vast territory, vast territory and abundant resources, rich and complete types of mineral resources, and open-pit mining
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Porosity casting defects of bucket teeth
Porosity is one of the most common casting defects in castings. According to the different formation mechanism, it is mainly
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Problems in shell casting process
Through production test and research, the following problems exist in shell casting process: (1) mold shell deformation: mold shell deformation
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Application example of shell casting crankshaft
(1) carbon equivalent shall be increased as much as possible without causing graphite floating. After the test, the carbon equivalent
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Molding and pouring technology of crankshaft in shell casting
Carry out multi batch pouring and anatomical analysis on the shell cast crankshaft, and make corresponding adjustment and improvement: For
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Inoculant and inoculation treatment of nodular cast iron
The necessary condition for spheroidization is that magnesium as the main element in spheroidizing agent of nodular cast iron is
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Reducing pouring “temperature” to reduce sand hole and air hole defects of large steel castings
Reducing pouring “temperature” to reduce sand hole and air hole defects of large steel castings Reducing the pouring “temperature” is
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Optimization of casting process for rear axle of high speed excavator
The rear axle of high-speed excavator is the installation device of differential and half shaft, and bears the counter torque
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Sand sticking casting defects of bucket teeth castings
There is a layer of sand particles on the surface of castings that are difficult to remove, which is called
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Nodular cast iron crankshaft shell casting
Through analysis, for the nodular cast iron crankshaft shell casting with higher and higher requirements, the future research work will