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Parts cleaning is a step in various industrial processes, either as preparation for surface finishing or to safeguard delicate components. One such process, electroplating, is particularly sensitive to part cleanliness, as even thin layers of oil can hinder coating adhesion. Cleaning methods encompass solvent cleaning, hot alkaline detergent ...
Parts washers were originally developed for use in automotive transmission and engine repair shops as a way to improve the function of simple soak tanks.Soak tanks are vats filled with a mixture of water and detergent, which take hours to "soften" the built-up road grime, fluids, tars and oils enough to be manually rinsed off prior to disassembly and repair.
Solvent degreasing is a process used to prepare a part for further operations such as electroplating or painting. Typically it uses petroleum , chlorine , dry ice or alcohol based solvents to dissolve the machining fluids and other contaminants that might be on the part.
Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes
Aqueous or solvent cleaning both have accepted methods to dispose of the "sludge" created. It has been reported that talcum powder can be used as an absorbent of cosmoline by packing the powder around the item to be cleaned and applying sufficient heat to melt the solid film, allowing the compound to be wicked from the coated surface into the ...
Installation may involve shrink-fitting, heating the cylinder head and cooling the valve guide so as to ease insertion, then driving the new guide in quickly with a press or a hammer. Once the parts return to room temperature the new valve guide will be solidly in place and ready to be reamed and honed to proper diameter.
It is a white, granular or crystalline solid, highly soluble in water, producing an alkaline solution. TSP is used as a cleaning agent, builder, lubricant, food additive, stain remover, and degreaser. [7] As an item of commerce TSP is often partially hydrated and may range from anhydrous Na 3 PO 4 to the dodecahydrate Na 3 PO 4 ·12H 2 O. Most ...
Some systems are designed to capture and reclaim this solvent, making the process much more economical. Other adaptations to the simple system include: Several tanks for solvents and rinsing; Having a solvent spray to coat the workpiece prior to entry into the chamber to speed up the process and to allow for more complex parts to be cleaned.