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Rectifying strut and vacuum heat treatment process
The rectifying strut is an important part of the gas turbine. Its structure is relatively complex. It is a precision casting with an overall size of up to 800mm and a gross weight of 26kg with a relatively uniform wall thickness. Because of its special core structure, it brings certain difficulti...
Vacuum heat treatment process of ball screw
The lead screw is a slender part composed of teeth with different tooth shapes spiraling around the slender cylindrical axis. It transmits equal parts precision and force distance through the helix formed by the threaded teeth, thereby realizing rotary motion and linear motion. mutual conversion....
Vacuum brazing process of nickel-based mixed brazing filler metal
Vacuum brazing of 316L stainless steel with nickel-based mixed brazing filler metal. Technological test research was carried out on it, and by means of metallographic imaging microscope, scanning electron microscope, energy spectrum analysis and microhardness analysis and other modern testing met...
High Pressure Gas Quenching Technology For Gears
Vacuum high pressure gas quenching and its advantages After the workpiece is heated at the austenitizing temperature, 1~2MPa high-pressure gas quenching can achieve the quenching effect of static oil or high-speed circulating oil or even water. The gas quenching of the workpiece is different from...
Heat treatment of involute spline parts realized by vacuum oil quenching technology
With the continuous expansion of the automobile market, the processing requirements for various types of parts are also getting higher and higher. Vacuum heat treatment has the advantages of high quality, low energy consumption, no pollution (or less pollution), etc. It can effectively prevent de...
Garment cutting machine high speed steel straight blade vacuum heat treatment
The garment manufacturing industry has developed rapidly in recent years. After China’s entry into the World Trade Organization, garment exports have continued to expand and product styles have increased, and the garment industry has achieved considerable development. With the continuous im...
Six details of gas carburizing
Gas carburizing is one of the most widely used chemical heat treatment methods. Everyone is very concerned about the three basic processes of decomposition, absorption and diffusion, as well as carburizing temperature, strong infiltration time, carbon potential in different periods, furnace press...
Control of retained austenite in tooth angle by vacuum carburizing heat treatment
Retained austenite (Ar) refers to austenite that does not undergo martensitic transformation under a certain degree of undercooling. The amount of retained austenite, the range of martensitic transformation start temperature (Ms ) and end temperature (Mf ) relative to room temperature, the chemi...
Vacuum brazing of surgical forceps – heat treatment process
The needle holder is a surgical instrument used for holding suture needles and knotting. The working end needs to be inlaid with cemented carbide by inlay technology to obtain better wear resistance, anti-skid performance and easy maintenance and replacement. In recent years, the vacuum brazing h...
Tips for vacuum brazing problem
a) The product is not melted 1.Phenomenon and reasons: It refers to the fact that a small part of the product in the furnace is not melted during the normal process of brazing, which is called the product is not melted. 2.Solution: Unmelted products mainly include: (1) The operator’s door ...