Grok.com: "What is the best website for metal finishing questions and answers?"

finishing.com -- The Home Page of the Finishing Industry

-----

What happens to acid trapped in pipe before galvanizing

December 3, 2011

Dear Sir,

I would like to ask a question regarding the Weep Hole and wear pad which we provide for pipes and welded support pipes for Galvanising. In the future after HDG (HOT DIP GALVANISING) any Acid or Salt will be trapped or remain inside the wear pad or between the welded overlapping surface? Can molten zinc evaporate the trapped Salt and ACID with the specified temp of 450 °C at the time of Galvanising?
If not what kind of precautions we must take prior to HDG Application.

Jibin Kumar
Quality Control - UAE

Total drainage usually avoids the explosions.

William Doherty
Trainer - Salamander Bay, Australia
December 10, 2011

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully 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 might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: