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  Wanted: Gun for osu/metco/oerlikon/sulzer LD/U3 / OC1
Posted by: Tistlo - 03-14-2020, 04:59 PM - Forum: Products and Services - Replies (1)

Hello all

I Have now been able to find a old OSU G35 machine. its the same as the EcoArc 350 from metco and other brands.

problem is, that it is missing its hoses and gun.

I got a quote for a new kit from the dealer, and that is ca 10500 euro. i will be using this machine not to much, so its crazy for me to spend that money on the gun/parts.

So, i am looking for a used gun, of the type LD/U3. or other models that will work on the machine (like OC1) i will be spraying only zinc wires. for anticorrotion work on old cars mostly.

hope somebody can help me out Smile

best regards
Christer Helle
Norway

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  Metco arc gun RG
Posted by: Tistlo - 03-08-2020, 02:29 PM - Forum: Products and Services - Replies (1)

Hello,
im new here on the forums (but i have been lurking for long time..)

have anyone experience with metco type RG gun? i came across it, but it is old, maybe 1970's? is it worth to buy? im looking to do zinc/al spraying. i have already many castolin guns but i want to go away from powder. this is only the gun, so i must also prepare a power source, but that should be easy to solve.

https://scontent-arn2-1.xx.fbcdn.net/v/t...e=5E9779D3

hope anyone can help

Christer,
Norway

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  Sand Blasting with SiC or Hard Alloy
Posted by: Met.Eng. - 03-07-2020, 07:13 PM - Forum: Surface Engineering Threads - No Replies

Hi,

In our company we use vacum and pressured blasting machine. Generally Vacum Blasting with Al2O3 and Pressured Blasting with Chilled Iron. We do not want to use Alumina in a pressure blast machine Because the Alumina very quickly crumbles and dust. But Chilled Iron hardness is not high hardnesses enough to blasting hardened steel.

Is anybody use silicon carbur grit ? Or other hard and strength blasting media As an alternative to Al2O3? . Is there a negative structure on the surface for such different blasting media? (Oxidation, or sinking surface)

Good day

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Video Problem WC CoCr
Posted by: Lyokha ibn Ivanovich - 03-07-2020, 03:29 PM - Forum: Surface Engineering Threads - Replies (2)

Hi colleagues.

I did a home-made installation of HVOF. Help me figure out the device’s settings.
Actually this device is slightly smaller than the HIPOJET-2700.
The problem with spraying WC CoCr. The coating is not very dense.
The photo went through a carbide sandblasting plant. Abrasive AL2O3 100mkm. Carbide eats very quickly and it is not resistant.
WC CoCr Powder -35 + 15 μm
The photo cannot be inserted.


Can you tell what could be the problem?
Is there a lot of oxygen in the flame?
I have never seen an industrial HVOF burner burn.



In the video, powder spraying analog 3650




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  NiCrAlY interface separation
Posted by: edrazee - 03-02-2020, 10:33 AM - Forum: Surface Engineering Threads - Replies (10)

Hi

New user here! This forum has been useful for my thermal spray journey!

I am facing an issue with interface separation when spraying NiCrAlY coating using F4 gun. I have tried taking extra precautions when grit blasting but it does not seem to improve the situation. My suspect is that there are oxides on the interface and they are being pulled out.

Anyone with experience can chime in on this? Am I guessing wrongly?

Thanks in advance!


Ed

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  RE: Mobile HVOF equipment
Posted by: Nesher - 02-27-2020, 11:19 AM - Forum: Products and Services - No Replies

We are often asked the question: How long can I apply with our HVOF Termika-3 without stopping? We had experience from Argentina in 5 hours of continuous work. Today we received information from our representative in Singapore about 24 hours of continuous application. Non stop spraying for 24hours !!!
To purchase : a.termika@gmail.com
I’m not afraid to say that our mobile HVOF Termika-3 is one of the cheapest, reliable and easiest to use. Operated in 41 countries about 16 years.
https://www.youtube.com/watch?v=2AhDzwt26Uc
https://www.youtube.com/watch?v=aEbsZEuI384

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  Ra value 1.6 to 1.7µM in CGL POT Stabilizer roll
Posted by: Packiaraj Mutharasu - 02-27-2020, 05:29 AM - Forum: Surface Engineering Threads - Replies (3)

Question Hai friends, One of our new customer looking for TC coating on their CGL POT Stabilizer roll with Ra value 1.6 to 1.7µM. We are using JP5000 gun. For other customers we achieved Ra 3.5 to 4.5 µM in WC/Co-88/12 (-45+15micron) powder.
If any one having experience with Ra value 1.6 to 1.7µM then please share your valuable suggestions. Thank you.

Packiaraj Mutharasu.
packiaraj.mutharasu@gmail.com

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  Flame spray equipment for sale
Posted by: mgbaca1a - 02-23-2020, 07:46 PM - Forum: Products and Services - Replies (3)

For sale used torches:
Metco 12E
Metco 6P-II
HVOF HipoJet 2100 - compatible with HipoJet 2700

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Bell fire in extraction dust collection
Posted by: LisaWalmsley - 02-19-2020, 12:59 PM - Forum: Surface Engineering Threads - Replies (2)

Has anyone ever experienced this?:

We have a issue with dust from one of out thermal spray processes (AWS) which caught fire - in the barrel which collects the dust from the extraction unit. The booth in question sprays zinc, Babbit (Sn, Sb, Cu, Pb) and SM8400 (95%Ni, 5%Al).

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  Chrome Oxide Hardness
Posted by: Neufeld - 02-18-2020, 08:07 PM - Forum: Surface Engineering Threads - Replies (1)

Hi all,
Im trying to find out how hard(HV vickers) it is possible to spray chrome oxide.
I use Amperit 707.054 (99.5% chrome oxide) Grain size -45/+10
Spraying with an F4 plasma gun

I am able to get up to 1250-1290 vickers.
Testing is done per ASTM E384-17

I have a customer that wants us to achieve 1300+ vickers. We are struggling to reach this spec.

Parameters used are:
Argon: 80 schf
Hydrogren: 15-18 scfh
Carrier Gas (Argon): 5.5 scfh
Powder volume: 35-40 g/min
Amps: 625
Volts: 67
Gun Standoff: 4"
Using air nozzles on gun to keep flame clean and focused.

Does anyone have experience achieving 99.5% chrome-oxide coating at 1300+ vickers with F4 Plasma gun?

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