Archives

spacer

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 an important symbol to measure a country’s comprehensive national strength. Large steel castings are widely used in power station, petrochemical, metallurgy, shipbuilding and other equipment and equipment manufacturing industries,...

spacer

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 very important position in the machinery manufacturing industry. The quality and development level of China’s steel casting parts is one of the important symbols to measure a country’s comprehensive...

spacer

Production status of China steel casting parts

China’s steel casting parts manufacturing industry is the basic industry of national equipment manufacturing, especially the manufacturing of large Chinese steel casting parts. Its development level is an important symbol to measure a country’s comprehensive national strength. Chinese steel casting parts are mainly divided into three categories: carbon steel,...

spacer

Current situation of China steel casting industry

There are more than 30 large-scale casting production enterprises in China, most of which are large and medium-sized state-owned enterprises. At present, only a few manufacturers such as the first heavy and the second heavy can produce Chinese steel castings of more than 200 t. The products of the...

spacer

Development of bainitic martensitic wear resistant cast steel

In the late 1920s, Robertson first discovered the medium temperature transformation product later named bainite in steel. Later, the researchers further found the microstructure of upper bainite, lower bainite, granular bainite, carbide free bainite, columnar bainite, abnormal bainite, massive bainite, low-carbon and low-alloy bainite and quasi bainite, forming a...

spacer

Microstructure of tempered Crl3 steel

The tempering process is the quenching and tempering step after the previous heat treatment. Although the martensite in the structure after quenching is very “tough”, it is all due to the dislocation distortion formed by the supersaturation of carbides. Such a structure has internal stress and is unstable. In...

spacer

Wear resistance mechanism of cast steel liner of cone crusher

Combined with the performance requirements and development direction of crusher lining material, a new bainite Martian multiphase wear-resistant cast steel with high strength, high hardness and qualified toughness is designed. The microstructure evolution law and performance regulation method during heat treatment are studied. By putting forward a multi-dimensional wear...

spacer

Automatic cleaning and grinding technology of steel castings

As a big foundry country, the development level of China’s foundry industry is constantly improving. However, the problem of casting cleaning has always been a big problem affecting the development of foundry industry. Due to the low degree of automation in the cleaning process, it is difficult to achieve...

spacer
spacer