Hello all!

Any recommendations for a plasma (preferably) powder equivalent to SF Aluminum wire?

Thanks!

Hello Forum,

Requesting you to please provide the contact details of the supplier, who can provide the silicone rubber maskants for protection during plasma spraying?
It would be very helpful if the supplier is from India, as we are operating from India.



Thank you
Arjun

Hello All,

Now I have some questions about WC-Co coating:
1. What's the difference of the coating sprayed by APS and HVOF?;
2. How to choose the process, based on the working conditions or something else?
3. Is the coating sprayed by APS sensitive to the environment? I worked out this coating with APS（F4 gun） and sometimes the crack occurs without any change, the preheat temperature is around 80℃。

Dear Collegues
We starting work with 6P-II combustion flame spray with 40-years old metco powder feeder and 2gf flow meter. We are looking for user manual for this torch and starting procedure.
Can You help us in the case of starting procedure becourse during switchin from iginition to work it sometimes turns off. Which vales of pressure are recommended for the beginning
Best regards
Marek

I keep getting an ignition fault on my 9MC console.
I switched out electrode/nozzle and fault continues.
My next step is to switch out the -/+ hoses.

If this doesn't solve issue, what should my next step be?

Dear Forum,

We are planning to use waterjet stripping machine to remove the coatings. As we are new to this waterjet stripping method, requesting for your valuable inputs to remove the coatings.

1. Can anyone share the parameters to remove the Ni-Al bond coat from Inconel parts?
2. What can be the good inspection method, to ensure the complete removal of coating?

Thank you
Arjun

Dear Forum,

Currently we are using Argon gas as primary gas in our plasma spray. As per the technical specification, the purity of the gas should be maintained. So we are purchasing the gas cylinders directly from a local vendor and he is ensuring the purity of the gas by testing in their laboratory. 

In future, we are having a plan to install a bulk tank to supply the gas continuously to the machine. Vendor is going to supply the Argon in the form of liquid and this liquid argon will be stored in the bulk tank. By using vaporization process this liquid will be phase changed from liquid argon to gaseous argon and this argon gas will be supplied to the machine.

1. What is the impact on gas purity due to this phase transformation from liquid to gas?

2. What are the ways to check the purity of the gas after conversion? 

Thank you,
Arjun

Hello Surface Engineering Team,

Requesting experts to share their experience related to thermal spray audits like major and minor non conformities, observations, best practices and any other findings.

Thank you
Arjun

hello all members , 
Please let me know if you have any requirement of thermal spray equipment an gun parts . looking forward for your valuable enquiry in  sales@balajiudyog.in and balajiudyog2013@gmail.com
you can WhatsApp to me  directly on +91 9269288805
regards
Dharmesh solanki
BALAJI UDYOG
JODHPUR RAJASTHAN INDIA
www.balajiudyog.in

Dear All

Lately we sprayed WC10Co4Cr using TAFA JP-5000 on paper industry rollers. We only have 2 sets of parameter which are 98g/min and 55g/min. Normally we would use 98g/min parameters with an actual feed rate of 70g/min. The thing is this time we use 98g/min parameter with an actual feed rate of 98g/min as well. After spraying and grinding, there were some metal lumps all over the roller's surface. Now we are looking at two main reasons.

1. We didn't dry off the powder by heat before using it.
2. We used too high feed rate even the Bulletin suggested so. And that caused unmelts parameters due to insufficient heat.

Please find pictures here

Also, find parameters that I mentioned as attached files.

Any reply would be useful. Thanks guys

Attached Files

  1350VM Tungsten Carbide-10% Co, 4% Cr (1.9.2.2SH-1350VM) (1).pdf (Size: 291.08 KB / Downloads: 249)
  1350VF Tungsten Carbide-10% Co, 4% Cr (1.9.2.2SH-1350VF).pdf (Size: 306.71 KB / Downloads: 226)