Hello all,
We manufacture springs and a couple of our jobs require shotpeening. The parts are made from Oil Tempered Chrome Silicon wire. We send the parts through a spray wash cabinet followed by a heated air dry after shotpeening but some shot residue remains and is causing us to fail...
Hello all. I am looking for some advice with a DI application.
We have a process that includes quenching small metal parts. The quench solution contains a sodium nitrite inhibitor that provides corrosion protection. We purchase DI water in tanks from a local water treatment supplier. In...
Is there any standard that states Start and Stop buttons on a touch screen must be a specific color? For instance, if I have a button labeled cycle or machine stop, does it have to be red?
We recently received some Oil Tempered Chrome Silicon spring wire that appeared to have some surface contamination. Our vendor stated that all wire goes through a molten lead quench and that it must be lead that was not burnt off in the subsequent burn off operation.
We had an outside lab...
Hi all,
We have a small 316 SS tank that we use for passivating small stainless components with a 50/50 mix of water and Nitric acid 42BE.
A new employee changed out the tank last night and added Hydrochloric acid to the water instead of Nitric acid. By time the acid was pumped out, it had...
I need to install a flow meter in our wastewater discharge. It is a small system and has an intermittent discharge rate of just under 10 gpm. The discharge pipe is 2” PVC.
The wastewater system treats rinse water generated in our finishing department and uses chemical flocculation to remove...
Hi all,
I am hoping that someone can help me. I apologize in advance for this very lengthy post.
We installed a bag filter system for our heated, 600 gallon alkaline degreaser tank and it has been nothing but a nightmare since. The rep we purchased the system from is not sure why we are...
Hi,
We are quoting a project that requires pins manufactured from DIN 17230 rolling bearing steel. I see that rolling bearing steel is usually 100Cr6, but if the customer specifies DIN 17230 only, would it be considered the exact equivalent? I am primarily interested in chemical composition...
Hi all,
We will be installing a bag filter on our heated alkaline degreaser tank to extend the life of the bath. The bath composition is a basic Sodium Carbonate, Sodium Hydroxide and Sodium Metasilicate solution. The tank and heating tubes are constructed of 316 Stainless Steel.
The...
Hi all,
We are a spring and stamping facility, primarily for the automotive industry.
Recently two of our customers have requested that we provide the amount of recycled steel in the parts we supply to them, either by percent or weight.
Many times we purchase wire and flat stock for a...
I need help in selecting the correct repair method of our waste alkaline degreaser holding tank in our wastewater pretreatment system. The lining (it appears to be black rubber) developed a hole(s) or a rip and the liquid degreaser migrated between the liner and the steel walls, forcing the...
