Ultra low temperature treatment

Ultra low temperature treatment is a new type of low temperature treatment technology below 160 ℃. Since 1933, ultra-low temperature technology has been applied in metal treatment in the world. The experience of many countries shows that the tools, dies and metal materials treated by ultra-low temperature treatment have excellent performance, thus improving the service… Read more Ultra low temperature treatment

Ultra low temperature treatment technology of bimetal saw band and cemented carbide

Because the final transformation temperature of martensite in most alloy steels is below zero, the properties of materials can not be fully exploited by general heat treatment. For some materials, the end point of martensite transformation is even low temperature – 100 ℃, so only ultra-low temperature treatment can fully tap the potential of materials.… Read more Ultra low temperature treatment technology of bimetal saw band and cemented carbide

Ultra low temperature treatment of D2 cold working die steel

After quenching D2 cold working die steel and then ultra-low temperature treatment in an industrial refrigerator at 196 ℃, the retained austenite can be eliminated and all martensite can be obtained, and the microstructure can be further refined. After ultra-low temperature treatment, the Rockwell hardness (HRC) of D2 steel is increased by 4 units, the… Read more Ultra low temperature treatment of D2 cold working die steel

A manufacturing method of bimetal saw band and cemented carbide ultra low temperature treatment process

Bimetallic saw band is a kind of composite material formed by electron beam welding of high-speed tool steel and high-strength hot working alloy steel of back material, which is processed by multiple processes. Due to the characteristics of composite materials, the two materials have different optimal quenching and tempering process parameters, so it is impossible… Read more A manufacturing method of bimetal saw band and cemented carbide ultra low temperature treatment process

Effect of ultra-low temperature treatment on mechanical properties and microstructure of materials

Titanium alloy is a typical difficult to machine material, but it has excellent comprehensive mechanical properties and occupies an irreplaceable position in the aerospace field. Therefore, in cutting titanium alloy, higher requirements are put forward for tool materials. Ultra fine grained cemented carbide and high performance high speed steel are typical tool materials for titanium… Read more Effect of ultra-low temperature treatment on mechanical properties and microstructure of materials

Wear resistance and ultra-low temperature treatment of props

Metal cutting is one of the most basic machining methods in mechanical manufacturing. With the development of modern science and technology, cutting is developing towards high efficiency and high quality. Therefore, how to improve the service life and working reliability of cutting tools and how to determine the durability of cutting tools have become prominent… Read more Wear resistance and ultra-low temperature treatment of props

The cold assembly process

Cold assembly  is a kind of assembly method that uses cooling medium to cool the parts which need to be installed in the base hole first, so as to shrink their dimensions and generate assembly clearance between the assembly surfaces, so as to facilitate the assembly of parts. Characteristics of cold charging process (1)It is… Read more The cold assembly process