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Parts Washer Solvent Versus Water-Based Solutions

April 16, 2012 | Comments: 0 | Views: 171

Parts cleaning can occur with a solvent or water based solution depending on the type of contamination being removed and required strength. High temperatures increase the results of this process due to a heightened chemical reaction. This boost causes parts to be cleaned faster with more efficiency; however, it also increases the risk of usage. A temperature of seventy-seven degrees Celsius or higher allows oil or grease to melt from the surface. Many factors make it difficult for a washer to maintain this requirement because a sufficient heating system is necessary along with a pumping system that can accommodate near boiling temperatures. Special design elements are required to accomplish high temperature cleaning.

Equipment using a parts washer solvent removes untarnished cleaner from the basin and applies it to the basket so all contaminants drop back down to the bottom of the machine. Alternative designs involve complete basket submersion sometimes referred to as immersion cleaning. Aqueous based washers have operations comparable to a commercial dishwasher. Water, heat, and the detergent are combined to perform jet spraying or power washing. These systems eliminate organic solvent fire risks, but can damage certain metals or electrical components.

Organic Solvents: What Factors Determine Base Possibilities?

Companies are urged to use water-based solutions when they fit removal needs; however, organic solvents are still required for various types of cleaning tasks. What are the main concerns involving this type of impurity removal? The most significant drawbacks of these products are ignitable qualities, hazardous air pollutants, and volatile compounds. Equipment designs are being altered in addition to the development of less harmful products to counteract environmental risk.

Aqueous solutions offer certain safety benefits because they can be handled in a safer manner and simplify required steps. Limitations on usage often cause companies to rely on parts washer solvents rather than water mixtures. Additional benefits include the elimination of airborne vapors, minimization of hazardous waste, and reduced disposal costs. Solvents have additional Federal regulations that heighten usage and disposal requirements; however, they are essential in certain contaminant elimination environments. Selection should be centered on these particular surface factors:

  • Type
  • Condition
  • Geometry
  • Utilized Equipment
  • Contaminants

Aqueous agents emit low VOCs, do not contain ozone harming materials, and have reduced hazardous waste. Organic solvents offer these advantages:

  • Parts Dry Quickly to Prevent Corrosion
  • Better Cleaning of Complex Geometries
  • Consume Minimal Energy
  • Require Limited Equipment
  • Perfect for Cell Manufacturing Environments

Solventwashing with agitation entails a shorter removal time than aqueous methods. Parts are submerged to eliminate impurities for approximately five minutes with vaporization only taking one to two minutes whereas aqueous setups entail a longer rinse and drying cycle. They use more energy than a parts washer solvent setup and add water consumption costs. Solvent based equipment is less expensive to implement with the average usage cost being a little less as well. A company should consider the contaminant type, surface, and agent properties before choosing a removal method. If environmental risk is a concern, various products are available to meet government regulations for eco-friendly practices.

Organic solvents pose certain risks to the environment and those handling utilized substances. Aqueous solutions or a less volatile parts washer solvent can be applied for reduced danger.

Source: EzineArticles
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