Production Machining

MAY 2018

Production Machining - Your access to the precision machining industrial buyer.

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48 PRODUCTION MACHINING :: MAY 2018 PARTS CLEANING percent, these cleaning products rinse easily with water. ere are a number of these products on the market, and they are generally designed for use with all types of spray and immersion washers. Some companies add the use of ultrasonic cleaners or other types of mechanical action to enhance particulate removal. Aqueous cleaning chemistries include emulsifiers, non-emulsifiers (oil-splitting), acidic (pH less than 4), mild-alkaline (pH of 9-12.5), neutral (pH of 4-9) and high- alkaline (pH greater than 12.5). No cleaning machine will perform properly without the appropriate chemical process (cleaning solution, solution concentration, solution temperature, proper exposure period and any required mechanical action). It takes a combina- tion of all facets to achieve maximum results for production, quality, personnel safety and environmental compliance. Typical aqueous cleaning systems are designed to match process needs such as: • Production volume, parts geometry, parts size and material handling • Type of chemicals to be used (alkaline/neutral/acid) • Soils removal • Waste streams for wash tanks • Waste stream for rinse tanks • Footprint and/or floor space • Energy requirements When selecting cleaning equipment to provide appro- priate mechanical and thermal energy, keep in mind that cleaning equals time plus temperature plus mechanics plus chemistry. e following features also should be considered: • Recirculating of the wash solution • Use of multiple rinse stages • Drying system design versus throughput • Centralized unit versus cellular system Solvent Cleaning General solvent degreasing also is a process many manufacturers use today. Today's cleanliness specifica- tions for precision and critical cleaning indicate that most metal parts cannot have any contaminant residue or rinse water residue, thus increasing the interest in solvent- cleaning agents. In addition to meeting the cleanliness specification mentioned here, solvent cleaning also overcomes water's inability to properly perform to certain other criteria, issues related to component spacing and ® Cl ean Parts . Tel. 716.763.4343 ■ ■ C lean Lines ■ Passivation Lines ■ A queous Chemistries ■ Data Management

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