Figure 1 Use sort of bellows
Bellows are usually divided into two types: shaped bellows and welded bellows. The materials of bellows employed in extremely-significant vacuum system is commonly SUS316 stainless metal.
To make a molded bellow with a marginally greater diameter, first roll the stainless metal plate into a tube condition and Standard Glove box weld it at the joint. Insert the cylinder into the bellows mildew and comprehensive the output of the shaped bellows by hydraulic stress.
In the extremely-large vacuum procedure, the bellows connecting the molecular pump and the mechanical pump are typically fashioned bellows with NW flanges at both finishes.
The advantages of formed bellows are basic creation and small expense. The disadvantage is inadequate extend and overall flexibility. Welding bellows make up for the shortage of molded bellows.
Welded bellows is a thin-walled pleated hose manufactured by welding an annular stainless steel sheet with an interior diameter and an outer diameter alternately (Determine 2). The welding process is plasma welding. This bellows has wonderful versatility and is an indispensable portion in the link of extremely-substantial vacuum devices and a variety of motion introducers. Reasonably pick out the organic duration of the bellows, and the provider lifetime can reach additional than hundreds of thousands of occasions.
Bellows are usually divided into two types: shaped bellows and welded bellows. The materials of bellows employed in extremely-significant vacuum system is commonly SUS316 stainless metal.
To make a molded bellow with a marginally greater diameter, first roll the stainless metal plate into a tube condition and Standard Glove box weld it at the joint. Insert the cylinder into the bellows mildew and comprehensive the output of the shaped bellows by hydraulic stress.
In the extremely-large vacuum procedure, the bellows connecting the molecular pump and the mechanical pump are typically fashioned bellows with NW flanges at both finishes.
The advantages of formed bellows are basic creation and small expense. The disadvantage is inadequate extend and overall flexibility. Welding bellows make up for the shortage of molded bellows.
Welded bellows is a thin-walled pleated hose manufactured by welding an annular stainless steel sheet with an interior diameter and an outer diameter alternately (Determine 2). The welding process is plasma welding. This bellows has wonderful versatility and is an indispensable portion in the link of extremely-substantial vacuum devices and a variety of motion introducers. Reasonably pick out the organic duration of the bellows, and the provider lifetime can reach additional than hundreds of thousands of occasions.