Hi,
I am conducting some experiments with the electroless nickel (EN) coating of the free machining brass (high lead contain material, which is not good for coating but I must use this material).
After surface cleaning and etching procedure, once the brass is submerged in the EN coating...
@btrueblood
Unfortunately, I do not have the equipment for the electrocleaning. My work is the research in various disciplines and I can devote limited amount of time for this coating resaearch.
The industrial procedures for the brass surface cleaning prior to Ni-P coating are complex. I have...
@IRstuff
Just to be clear here, by coating quality I mean coating adhesion, wear resistance, etc. But quality is irrelevant here.
What I was hoping is that perhaps someone got the Ni-P process kicked off (for the brass) without the electrocleaning step (even with poor coating quality) what...
@IRstuff
Thank you for your question.
As I mentioned earlier, as long as the process can be kicked off (with simplified cleaning) and I can try certain solutions, it will be ok.
Electro cleaning requires extra equipment etc. etc.
Hi,
I am conducting the experiments with the electroless nickel plating of the brass (CZ121).
I have read a lot of the literature about this process prior to the lab tests.
All brass surface cleaning procedures that I have came across involve the electro cleaning (I understand why). However...
@danw2
Thank you for your detailed info on the PLC layout for the scenario. I am grateful, it helped me a lot.
I have amended the PLC logic. I send it attached.
I will think about the high limit control loops for the system, thank you for your advice.
@itsmoked
Indeed, the two stage control...
Hi,
I would like to provide the PLC control for a scenario where the temperature in a machine, heated by the two electric heaters, is controlled with use of 1 TCK and 2 s/s relays. Please see draft “PLC4” sent attach. The TCK is fixed to the machine and is not in a physical contact with the...
Hi,
I have 6 cables. Each cable has 3 wires: zero, phase, earth.
Each cable supplies 320W 230VAC heater (I have 6 heaters).
I am looking for 1 multi pin connector for all these cables for quick plug in/out.
Link to example connectors...
Hi,
In search for multi pin connectors dedicated to the TCKs I have came across the following products, which in case someone would look for them may find these links useful:
http://www.omega.co.uk/pptst/MTC_CONN.html
http://www.omega.com/temperature/pdf/JPCB_TJPCB_RJPCB.pdf...
Hi,
I have 6 K type TCKs connected to the machine component.
Component with TCKs is frequently dismantled from the machine for refurbishment.
I am lookimg for some quick 'plug in/out' connector/connection for these TCKs.
Is there any thing like this avaialble?
I can find multi-pin...
@Compositepro
Thank you for your reply.
This is one of the options, nevertheless, I would prefer little bit more 'tidy' connection.
@ScotyyUK
The ring lug would be very small 5-10mm diameter.
The brass component size is 50mmx59mmx2000mm.
Adding fixing tips should not change thermal balance...
Hi,
I need to connect my TCK type K to the brass component which has working temperature approximately 200degC.
I intend to drill/tap a hole in the brass (M3) and fix TCK to it with a bolt.
I wonder whether using ring crimp terminal as the tip for the termocouple would be a good option...
Hi,
I have a brass components (brass grade CZ121) which require electroless nickel plating (not electroplating).
I cannot get electroless nickel coating for my brass component from regular coating companies because of its complex geometry. Along with air agitation, special jig is required to...
Hi,
I have the machine component which size is 2m x 0.2m x 0.4m (component is sorounded by enclosure, as outlined on attached draft).
Component has a couple of metal braided cables which have their inlets along the longer side (2 meters).
Component is made of mild steel and its working...
@itsmoked
Thank you for your reply.
I did not update my post in regards to use of ON/OFF and PID options.
I have already switched to PID.
I think that I will try first changing the value of output limiter (from 100% say to 50% first).
Hopefully, this solution will ok.