Problem of Pressure Vessel Pipe:
Butt joints of pressure vessels for all (100%) or partial (20%) non-destructive testing: When using radiation detection, according to its quality through not less than Class AB, the eligibility level for the grade Ⅲ, and there is no welding is not allowed permeability; when taken ultrasound, its qualified level Ⅱ.
Of GB150, GB151 and other standard requirements for all (100%) non-destructive testing pressure vessels, pressure vessels, the third category, the weld coefficient ⒈ 0 can not pressure vessels and internal and external inspection or pressure testing of pressure vessels, the butt joint for all (100%) non-destructive testing: When using radiation detection, according to its quality through not less than Class AB, the eligibility level for the grade Ⅱ; when using ultrasonic testing, its qualified level Ⅰ.
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Sources from Problem of Pressure Vessel Pipe
Expand Keywords: reactor, pressure vessels, heat exchangers
As a matter of fact, the ultrasonic crusher is sometimes called as the ultrasonic cell grinder that is a use of strong ultrasonic cavitation generated in the liquid. See here: www.toption-china.com/products/ultrasonic-cell-crusher-ordinary-type .Meanwhile, this may be multifunctional ultrasonic treatment.
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