Development status of China steel casting industry
1.Mainstream enterprises refer to some former national enterprises, which make use of the advantages of equipment conditions and further carry […]
1.Mainstream enterprises refer to some former national enterprises, which make use of the advantages of equipment conditions and further carry […]
1. Talent training and platform construction The development of the industry is inseparable from the support of professional talents, especially
Although China is a large foundry country, it is not yet a powerful foundry country. Compared with industrial developed countries,
The strength, especially plasticity and toughness of steel casting parts are greatly reduced due to coarse grains, uneven microstructure and
The strength, especially plasticity and toughness of steel castings are greatly reduced due to coarse grains, uneven microstructure and internal
Casting process is a process scheme to ensure that steel casting parts have complete shape, clear outline and no internal
Modification and microalloying is one of the hotspots to improve the properties of steel casting parts for many years. Through
As we all know, the performance of steel casting parts comes from casting materials, guaranteed by manufacturing process and improved
The foundry has formulated the quality control inspection process according to the casting process. The owner, the general contractor and
The chilling effect of the cold iron will change the local cooling rate of the steel casting, so that the
After analyzing the hot spot position and feeding channel of steel castings, the position of riser can be determined. In
Generally speaking, the riser should be set at the hot joint of steel castings, that is, the final solidification area.
During solidification, the steel casting will produce liquid shrinkage and solidification shrinkage. When the feeding system cannot provide sufficient liquid
According to the analysis of the original process scheme of the valve body, it can be seen that the improper
In order to ensure that there is no dead corner in the negative pressure inside the sand box, 5 air
Lost foam casting is a negative pressure full mold casting technology developed on the basis of vacuum sealing molding combined
According to the gear specification, the design structure of cast steel gear is divided into full circle structure, 1 /
Large steel castings are mostly the main bearing parts and supports in major technical equipment. The castings have huge size,
The manufacturing industry of large steel castings is the basic industry of national equipment manufacturing, and its development level is
China’s steel casting parts are indispensable products for China’s equipment manufacturing, the basis of national equipment manufacturing, and occupy a
China steel casting parts manufacturing industry is the basic industry of national equipment manufacturing, especially the manufacturing of large China
There are more than 30 large-scale casting production enterprises in China, most of which are large and medium-sized state-owned enterprises.
In the late 1920s, Robertson first discovered the medium temperature transformation product later named bainite in steel. Later, the researchers
The tempering process is the quenching and tempering step after the previous heat treatment. Although the martensite in the structure
Combined with the performance requirements and development direction of crusher lining material, a new bainite Martian multiphase wear-resistant cast steel
As a big foundry country, the development level of China’s foundry industry is constantly improving. However, the problem of casting
The typical specification characteristics of section steel universal edging roll and special-shaped steel s-roll products are that the roll neck
Riser is a kind of structure for storing liquid metal in the mold, which is used to compensate the possible
Through the observation of the defects, it is found that the defects are shrinkage porosity and shrinkage cavity, which are
Metal bending test is a test method to measure the bending plastic deformation ability of metal materials under bending load,