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High Performance Diaphragms and Their Use in Pumping Abrasive and Dense Slurries

Metering pumps have long been known for their accuracy and reliability to provide precise dosing of liquids to a process stream. This understanding was generally limited to homogeneous fluids or liquids under 500 cps. The use of a high performance diaphragm can boost the cps capable of being pumps exceeding 7,000 cps (depending on pump size) and handle large solids content. This has significant application where heavy materials, earth materials or conveyance of other solids bearing fluids is required. This discussion consolidates the selection and application of high performance diaphragms in these specialized applications…

Compressed Air Energy Savings: Thermal Mass Flowmeters Find Wasted Cash

In this era of rising energy costs and global competitiveness, compressed air waste in facilities can be a major financial drain to the bottom line. Air may be free, but compressed air certainly isn’t. According to Cary Carlisle, an expert compressed air auditor and seasoned technician from Air Compressor Supply, Inc. (ACS), over a 10-year period, electricity costs make up 76 percent of a factory’s operating costs…

Cleaning Parts in the Remanufacturing Process

With demand for remanufactured parts on the rise, leaders in automotive, agricultural, and heavy equipment remanufacturing are looking for parts cleaning systems that can sustain intense parts cleaning while reducing time and labor for maintenance on the washer. To better understand how remanufacturers can keep their aqueous parts washers performing at top quality with ease of maintenance and less down time, one must consider the system design and key elements of parts cleaning in the remanufacturing environment…

Rapid Cooling of Aluminum Nitride Heaters

Single Iteration, a division of Watlow, has conducted preliminary concept generation and evaluation for several alternative solutions for providing rapid cooling of AlN based heaters. Cost/benefit analysis of the various alternatives indicated that forced air cooling would be preferred for many applications of the latest AlN heating technology…

10 Steps to Plastic Bags

Plastic bags, also called ‘poly bags,’ are one of those modern conveniences we take for granted. But 60 years ago, no one ever considered the question, ‘Paper or plastic?’ Back then, people also managed to get by without Ziploc® bags or dry cleaner bags. This was because the technology for creating polyethylene film didn’t emerge until the 1940s during World War II. And the methods to create plastic bags from polyethylene film weren’t developed until the 1950s. The most common way to produce poly bags is by blown film extrusion, also called the ‘tubular film process.’ In a moment, you’ll see how it got this name. Plastic bags are made from polyethylene. During processing, the polyethylene might be treated with any number of additives, such as…

Lubrication: The Greener The Better

Manufacturing practices are becoming increasingly more scrutinized for their effect on the environment. Real changes are underway in the area of emissions, byproducts, packaging materials, fluid selection, and power consumption – to name only a few. While environmental payback may be the goal, many of these initiatives encounter obstacles, not the least of which is additional operational costs. Not so with lubrication – the greener the better. Utilizing very small amounts of lubricant at controlled intervals is productive for a number of reasons…

Why Use Extruded Aluminum?

by PSI Extrusions The aluminum extrusion process, which involves forcing hot aluminum through a precision die to create a length of constant cross-section, marries the inherent advantages of aluminum to the precision and high volume capacity of the extrusion process.

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Investment Casting Soars Despite Misconceptions

Although one of the world’s oldest metal fabricating technologies, investment casting (sometimes known as ‘lost wax’ casting) has in recent years been subjected to a few misconceptions, ironically these fallacies have probably caused many who could have benefited most from this process to rule it out…

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