Key advantages of the dry ice cleaning method
High cleaning efficiency: Dry ice pellets are blasted onto the mold surface at supersonic speeds. Through a combination of cryogenic embrittlement and micro-explosive impact, they rapidly strip away stubborn contaminants such as oil, carbon deposits, and rust, achieving cleaning speeds more than 60% faster than traditional methods.
Zero damage to the mold: Dry ice sublimates instantly without leaving residue; it causes no abrasion to the high-hardness working surfaces or nitrided layers of the cold-work die steel and introduces no additional thermal stress, thereby fully preserving the mold's original precision.
Exceptional adaptability: It eliminates the need for complete mold disassembly and supports in-line cleaning without stopping production. It can reach areas difficult to access via conventional methods-such as mold cavities, crevices, and complex corners-without causing secondary pollution.
Optimal choices for specific scenarios
Precision cold-work die steel (e.g., mirror-finish molds, inserts):Electrolytic ultrasonic cleaning yields the best results. By superimposing electrochemical action onto the cavitation effect of standard ultrasonic cleaning, it increases the removal efficiency for oil and rust by over 40% compared to standard ultrasonic methods, effectively clearing away residual dirt from tiny crevices.
Batch degreasing of standard cold-work die steel: The alkaline cleaner plus high-pressure spray method offers the best cost-performance ratio. It rapidly breaks down animal and vegetable fats through saponification; combined with the impact of high-pressure water jets, it enables efficient, simultaneous degreasing of large batches of workpieces.
