1.The concentration of carburized layer is too high Characteristics of heat treatment defects: There are massive carbides or network carbides […]
1. Processing route The machining routes corresponding to different forms of raw materials are different. At present, the forms of
Heat treatment is an important process method to obtain the service performance of casting parts to meet the needs of
Aging treatment is used to eliminate the stress of castings, and the main factor affecting the stress elimination of castings
Heat treatment furnace is mainly divided into gas furnace, electric heating furnace and gas electric heating furnace. 1. Gas furnace
At present, the methods to eliminate stress in engineering include traditional natural aging, thermal aging and vibration aging. 1. Natural
At present, with the development of marine engine to large-scale, the demand for large cylinder diameter, large tonnage and high-performance
Grain refinement has always been an effective method to improve the strength and toughness of metal materials in the field
The heat treatment process direction is mainly studied, and the following are several strengthening types: (1) Solid solution strengthening This
Take samples from test bar 1 and carry out the experiment according to the heat treatment experimental method, and finally
Due to the development and improvement of the output and technical level of China’s iron and steel industry, the demand
By developing the appropriate combination of microstructure phases, cast iron can obtain the required properties in any specific application. These
According to the above research and analysis, it is concluded that the best T6 heat treatment process for rheo SQUEEZE
The heat treatment system of 7075 aluminum alloy wheel shaped parts formed by rheo squeeze casting was analyzed and tested.
The DSC thermal analysis curve of 7075 aluminum alloy was tested in the experiment. According to the thermal analysis curve,
(1) The experimental scheme and process. The slurry was prepared by lspsf semi-solid pulping process, and the 7075 aluminum alloy
The main functions and purposes of alloy heat treatment are as follows: one is to improve the process performance of
Although rheo squeeze casting can improve and improve the mechanical properties of 7075 alloy parts and eliminate some macro segregation,
Heat treatment is usually used in strengthening and toughening treatment of ductile iron. The heating temperature of most heat treatment
Dredger is a common dredger, working in sand and silt. It is generally used to excavate various kinds of silt,
Normalizing ductile iron piston Normalizing, also known as normalizing, is to heat the workpiece to Ac3 or Accm above 30~50
For box type and trolley type resistance furnace plates, a high temperature tempering should be carried out before use, and
