finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing

HomeFAQsBooksHelpWantedAdvertiseForum
topic 4552

Zinc Phosphate and large metal parts


(2000)

I am using a calcium modified zinc phosphate in a dip line process for cleaning and preparing steel parts for the automotive rubber industry. I use stainless steel barrels to carry the parts through the line and the barrels rotate while in the baths and above the baths to reduce carry out.

Problem is that some parts weigh 2 pounds or more each and it seems to me that when they hit together they crush the phosphate coating thus causing adhesive to phosphate failure when molded. What can I do?

Joe Baird
mfg. company - Morganfield, KY USA


First of two simultaneous responses-- (2000)

Joe - the quickest and easiest method to reduce part-on-part contact is to switch to a rack system from the rotating barrels now in use. I'm sure there are several good vendors listed under the equipment suppliers section here for you to contact. Good Luck.

Dan Brewer
chemical process supplier - Gurnee, Illinois


Second of two simultaneous responses-- (2000)

Hi Joe, I know this may sound way way out of line (no pun intended) but would it be possible to rack phosphate these parts? Other than that, parts that weigh 2 lbs apiece, I honestly couldn't see them not doing this when they're spun around in a barrel.

Matthew Stiltner
plating company - Toledo, Ohio



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2017 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.