Working principle of lost foam casting Technology in casting production
Lost foam casting process technology, usually referred to as EPC, is also called gasification mold casting or full mold casting […]
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Internal thread casting method in large casting
In recent years, with the deepening of China’s industrialization and the promulgation of a series of policies and regulations to
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Hot joint analysis and riser design of nodular iron main reducer shell cover to avoid shrinkage defects
Casting hot joints are generally divided into structural hot joints and process hot joints. Structural hot spot refers to the
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Design of exhaust system for sand casting
(1) When designing the exhaust system of sand mold casting, it should be based on the principle that the cavity
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Selection of parting surface and pouring position of nodular iron main reducer shell cover to avoid shrinkage defects
For the horizontal box free molding line, the parting surface of the production main reducer shell cover is generally selected
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Process defects of large machine tool base plate castings
Machine tools play an important role in the construction of national economic modernization. Machine tool refers to the machine that
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Simulation of filling speed error in sand casting of machine tool bed
Sand casting is a casting method in which metal liquid fills the mold cavity under the action of gravity. Iron
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Optimization of heat treatment process for large gray iron castings
Aging treatment is used to eliminate the stress of castings, and the main factor affecting the stress elimination of castings
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Shrinkage cavity and porosity defect of nodular iron main reducer shell cover
The main reducer housing cover is an important component of heavy truck axle, which is matched with the main reducer
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Rapid casting core assembly modeling, pouring and cleaning of tractor small parts
After the sand core of sand mold is processed and formed, mold closing and pouring shall be carried out. The
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Rapid casting method of tractor small parts
The internal and external lifting arms, the transmission rod of the separation manipulator and the brake housing of the tractor
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Selection of heat treatment furnace for large gray iron casting
Heat treatment furnace is mainly divided into gas furnace, electric heating furnace and gas electric heating furnace. 1. Gas furnace
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Implementation and effect verification of High Toughness Nodular Cast iron cylinder head
Production preparation shall be carried out according to the established scheme. Since the injector hole core is made of hot
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Selection of stress relief process for heat treatment of large gray iron casting
At present, the methods to eliminate stress in engineering include traditional natural aging, thermal aging and vibration aging. 1. Natural
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Analysis and solution of shrinkage defect of High Toughness Nodular Cast iron cylinder head
1. Cause analysis This type of cylinder head integrates the intake pipe and rocker shaft seat on the basis of
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Improvement measures for casting process deformation defects of bed castings
1) In view of the insufficient stiffness of the bottom plate, a stiffener is added at the bottom of the
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Development trend of China foundry industry
Since China’s entry into WTO, China foundry industry has faced opportunities and challenges. Its future development will focus on the
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Numerical simulation of casting process of zg310 large casting seat
Firstly, according to the calculation results, the 3D pouring model of the seat body is drawn in Pro / E
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The equipment level supports the improvement of casting quality
① Upgrading of molten steel smelting equipment. Open hearth steelmaking was eliminated in the metallurgical industry four years ago, and
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Problems in China foundry industry
Although China’s foundry industry has achieved rapid development in recent years, there are still many problems. First, the degree of
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Pouring position of zg310 large casting seat parts
The common characteristics of cast steel are high melting point, poor fluidity, large shrinkage, easy oxidation and inclusion. During casting,
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Study on casting technology of nodular cast iron sand suction pump body
The sand suction pump casting is mainly used for river dredging, dredging and Embankment Consolidation, and the delivery medium can
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Centrifugal casting isothermally quenched ductile iron bushing test process and method
1. Test materials Figure 1 shows the wear of excavator bushing. It can be found that the bushing has been
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Centrifugal casting isothermally quenched ductile iron bushing
Most excavators work in the open air, and the service environment is poor. The working mechanisms of excavator bucket, stick,
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Technical breakthrough in the production of China large steel castings
Large steel castings are mostly the main bearing parts and supports in major technical equipment. The castings have huge size,
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Geographical distribution and respective characteristics of China foundry industry
The geographical distribution of China’s casting industry is mainly distributed in five regions, including Henan Province, Liaoning Province, Shandong Province,
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Determination of pouring position of zg310 large casting seat parts
The pouring position of castings refers to the position of large castings when pouring in the mold. Because the seat
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Basic situation of China’s foundry industry
In 2015, the total output of castings in China was about 24420000t, an increase of 75% compared with 2010. The
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Production of large steel castings in China
The manufacturing industry of large steel castings is the basic industry of national equipment manufacturing, and its development level is
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Output distribution of China steel casting parts
China’s steel casting parts are indispensable products for China’s equipment manufacturing, the basis of national equipment manufacturing, and occupy a