ASK THE ENGINEER - STEEL COATING

[@koseku3]

our customers keep asking us to fire coat before delivery. i cannot convince them to coat it at the site

[@94iaco]

Hi, i have a problem that maybe you can help me with, i have modified a pizza elettric oven that has 2 heating element, one under the coking plate and one above it (both of them are 600watt), i have removed the bottom one and placed on top together with the other one, for a total of 1200watt above the plate, i reach 430 degrees celsius on the coking plate for coking pizza, but the problem is that after the coking i have found metal particles on the coking plate (a lot of them like a powder) and i have used a magnet for picking up this particles, now the oven is made from stainless steel aisi 300 series and its not magnetic and it has no visible sings of corrosion, i think that the metal particles come from the heating elements (the magnet do not stick to them too so probably also aisi 300 series), and also this wasnt happening before i placed the bottom heating element above together with the other one, do you know what is goin on? the heating element are in apparently good shape i dont see any visible signs of corrosion or rust on them, one thing to mention is that the heating elements touch eachother (for a reason of tight space available in the oven) so maybe when they heat up and expand and then cool down and reverse there is friction between them, or maybe is beacuse they heat up to much (the glowing color bytheway is red not orange or yellow). Do you know what those metal particles can be? Thanks

[@SteeloLtd]

Hello Iamil, Thank you for your comment, but, unfortunately, I'm afraid we won't be able to answer your question. We specialize in structural steel, so I don't know how to even begin to answer your enquiry. I am sorry. Best of luck!

[@94iaco]

@@SteeloLtd thanks you anyways :)