By Charles Baldwin, Holger Evele, Renee Pershinsky
Advances in Porcelain tooth know-how: Ceramic Transactions quantity 211 offers a compilation of PEI Technical discussion board lawsuits protecting the newest clinical and technological development in porcelain tooth expertise. Logically geared up, conscientiously chosen articles conceal themes starting from potency and Dense part Pumping of Porcelain tooth Powder to electronic Ceramic Printing and uncooked fabrics and effort: Their effect on Enamels industry. Advances in Porcelain teeth expertise: Ceramic Transactions quantity 211 is the one-stop source for figuring out an important matters in porcelain teeth expertise.
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Extra resources for Advances in Porcelain Enamel Technology: Ceramic Transactions Volume 211 (Ceramic Transactions Series)
33 Bulk Enamel Distribution System Company Profile - Manufacture Residential & light Commercial, Gas & Electric Water Heaters - Sizes from 20 to 119 Gallon Capacity - Located Northeast Tennessee, Foothills of the Appalachian Mountains - Approaching 6 million man-hours without a lost-time injury • Tank Plant - Fabricates internal welded, glass-lined tank - 2 Enamel Depts. e. 90° elbows, unions, reducers, etc. 83, (No Change) - Fineness = 10-13, (No Change) - Slump = 5-1/2 to 5-3/4 (Changed, was 5-3/8 to 5-1/2 w/ pressure pots) Initial Problems / Concerns - Enamel Buildup In Lines - (Lines Flushed Nightly) - Risk of Contamination - (Happens but rarely) - Squeeze Valve Life - (Replaced w/ "pee" valve) - Pump Failure - (Rebuilt at 8-12 months) - Tranquilizer Failure - (1/5 replaced in 5 years) - Ball Valve & Pipe Wear - (Ball valves replaced often) 38 · Advances In Porcelain Enamel Technology Bulk Enamel Distribution System Conclusions: • Pressure Pots • No Longer Fill Individual Pressure Pots • No Longer Setup Individual Pressure Pots • No More Maintenance on Pressure Pots • Reduced Material Handling • Reduced Overtime • Better Material Utilization • Benefits • Improved Quality • Operators No Longer Make Constant Gun Adjustments Throughout the Day • Process Control Much Better • Smoother, More Consistent Spray • More Consistent Coating Thickness • Reduced Operating Costs • Increased Productivity • Eliminated Downtime Changing Over Pressure Pots • Reduce number of adjustments required through the day Advances in Porcelain Enamel Technology · 39 This Page Intentionally Left Blank PORCELAIN ENAMEL RECLAIM TECHNOLOGY REVIEW Mike Horton KMI Systems There are many types of enamel reclaim systems in use today.
Requires More Labor and Energy $ Additional Equipment is Needed $ The Plant Environment Must Be Controlled $ An Additional Coating Process is Needed $ Rejects May Increase, Resulting in Increased Cost, Scrap and Reduced Production Reclaim Process Processes Mill Slip: Reclaim Pit Wash Down Pre Mill Slip: Less Wash Down Screen + Magnetic Separate Pump to Storage Wash Down Tanks, Mills Floor, Screens and Lab: Pit Spray 30-60% Transfer Efficiency: Reclaim 85% Flow Coat Wet or Dip 90-100% Transfer Efficiency: Reclaim 95% Powder Frit Coat 40% Transfer Efficiency Reclaim 95% Brush, Bead and Drain, Blow-Off: Reclaim 41 Porcelain Enamel Reclaim Technology Review Tool Washer: Reclaim Wet Powder Hanger Cleaner: Reclaim Dry or Wet Dust Collector: Reclaim Wet Spray Washer: Pit/Water Treatment Wash Down: Pit Collection Baffles Drop 85-90% of Overspray 42 ■ Advances in Porcelain Enamel Technology Porcelain Enamel Reclaim Technology Review Overspray Reclaim Wet Process Collection: Dust Collector: 10-15% to Collector Tool Washer: Centrifugal Separate and Settle Powder Hanger Cleaner: Pump to Booth Screen or Collect and Mix with Wet Enamel DUST COLLECTOR RECLAIM Advances in Porcelain Enamel Technology · 43 Porcelain Enamel Reclaim Technology Review Hanger Cleaner Reclaim Process Pit Collection Mill Room or Process Area: Frit Settles Mechanical Agitate Air Agitate with Compressed Air or Blower Reclaim Applications Booth Over Sprays: Reuse on High Appearance Surfaces Dust Collection Materials: Mix with Wet Ground Coat Backside of Parts Tool Cleaner Materials: Wet Ground Coat on Small Parts Pit Materials: Backside Tubs Water Tank Small Low Appearance Parts Conclusions ♦ With raw materials and energy cost, a successful reclaim process must be established and maintained.
The purpose and scope of this paper is to determine the relative effectiveness of Cobalt Oxide versus Nickel Oxide as bonding agents in frit formulations. There are two main questions that need to be answered. First, is there a ratio of how much Cobalt to add versus how much Nickel to add to a frit to get the same bond results? And second, given the current price levels of these two materials, which is more cost effective? We chose two types of frit formulations for our experiment. A water heater (wet spray applied) groundcoat frit, and an electrostatic powder groundcoat frit.
Advances in Porcelain Enamel Technology: Ceramic Transactions Volume 211 (Ceramic Transactions Series) by Charles Baldwin, Holger Evele, Renee Pershinsky