David S. Peterson

David S. Peterson

Anodizing of Diecast Aluminum

Question: Our company uses a lot of diecast aluminum parts now for agricultural water application equipment such as big gun sprinklers and valves.

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Pretreatment Rinse Tanks

Question: I have a five-stage dip process.

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Classification of Flashpoints

Question: I found your discussion in the April 2001 issue informative as always.

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Graphite Cleaning

Question: Our company produces aluminum extrusions for paint.

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Alkalinity Loss in Cleaning Stage of Washer

Question: We are experiencing significant drops in the alkalinity of our first stage cleaning bath in a seven-stage pretreatment line.

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Powder Hooks/Rack Cleaning

Question: I am into my third month of study for a new powder coat system for our company.

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Solvent Cleaning Disc Drive Parts

Question: You received an inquiry regarding solvent cleaning of disc drive parts using "exotic" solvent and alcohol in a vacuum style vapor degreaser.

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Chromate vs. Phosphate

Question: I know iron phosphate works great on steel, but it is not as effective on aluminum.

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Nozzle Selection

Question: I am an avid reader of your magazine.

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Watertight Masking Device

Question: I am working on an issue with a company regarding a pre-paint cleaning operation.

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Attaching Transducers with Adhesive

Question: We have an ultrasonic cleaning machine with several tanks with 18 piezoelectric transducers attached in each one.

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Cleaning Magnesium

Question: What is the recommended chemical cleaning process and composition prior to electroless nickel plating for magnesium?

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Filtration Systems
PF Podcast
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Gardner Intelligence
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New Acid-Free Bright Nickel Process
Bringing Powder Coating In-House, free download