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Bell Image/photos in posts
Posted by: Gordon - 10-07-2006, 07:19 PM - Forum: Forum and Website - Replies (6)

Uploading of attachments to posts directly to the forum has been disabled (edit: except for active members - see next post). To place images in your posts, please read below.

You will need to have your image files hosted by a internet server. This maybe your own web space provided by your ISP or possibly one of the many sites that provide free image file hosting/sharing services. Failing that, you can post your message and email us your image file and we will host and insert the image for you.

Using the insert image button [Image: image.gif] , you can place the image in your post (be careful to size the image to suit the page). If your image is relatively large, it would be better to place a link to it by using the insert hyperlink button [Image: link.gif] If you have a thumbnail of the image, place the image code into the url title box, so that the thumbnail links to the larger image. Use " Preview Post" button below to make sure it is right before posting. Some of the free image hosting sites can generate the required code for you to paste directly into your message. It pays to experiment a bit using preview before you post.

I have tried a few free hosting sites which appear to work quite well, see this thread.

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  developing argon shrouded plasma spray
Posted by: phil - 10-06-2006, 12:51 PM - Forum: Surface Engineering Threads - Replies (4)

Hi guys,
I'm new to the forum so please be gentle!!
I have an F4MB plasma spray gun that i now wish to attempt spraying 'argon shrouded'... I plan to make my own argon shroud, but wonder if anyone has ever tried this on an F4MB before. Any info would be great as i realise developing could take some time.

Thanks
Phil (newbee)

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  importance of KW rating for plasma system
Posted by: rbateriwala - 10-02-2006, 12:10 PM - Forum: Surface Engineering Threads - Replies (1)

Metallisation Company claims that 90% thermal spray plasma systems operate at less than 40Kw power rating. We are presently planning to buy a 80KW FST or GTV system for chromium oxide and stabilised zirconia coatings, as metallisation offers 50KW system. IS there a way to compare all three systems for our use.
Regards
Ragesh Bateriwala

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  Shear Capability of Metco 443
Posted by: Alexangel1226 - 09-29-2006, 10:17 AM - Forum: Surface Engineering Threads - Replies (1)

Gordon,

Have you heard of the shear capability of a coating? any coating like Metco 443. As far as I know, most of the Lap shear Testing for thermal coating is not commenly applicable nowadays. Can you help to elaborate more on this topic? What's the shear capability means, what's it's impact and concern, and what's the importance o knowing the shear capability of a coating.

Thanks.

Regards,
Alex

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Question Coating of lead spheres
Posted by: Headland - 09-25-2006, 03:40 PM - Forum: Surface Engineering Threads - Replies (11)

We manufacture equipment for the nuclear industry, one item being a Tong Ball which is a lead sphere through which passes a tong grab, the ball is mounted in a lead shield housing allowing the operator to gimble the tong anywhere within the containment. At present the lead ball is manufactured and spray coated with chrome to reduce wear in the gimble housing, this is prone to cracking and the operation has become very expensive. Is there another coating such as a form of ceramic or teflon which can be sprayed on a spherical lead surface with an even coat to reduce the final machining and also give the required durability.

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  used machines
Posted by: farrell - 09-25-2006, 10:45 AM - Forum: Products and Services - Replies (2)

Dear Members

Farrell Engineering are an established provider of used machinery with a 21 year history of buying and selling, both within UK and a number of other countries, Europe, Middle East/ Asia, particularly Indian subcontinent, where a customer base has been established. The UK base is a large industrial unit, with offices, in Park Royal to west of Central London, which allows storage and refurbishment of machine tools in transit between purchase and sale. Die casting machines and Gear Cutting machines are a specialty.

please contacts us regarding to Buy or Sell your old machinery

info@farrellengineering.com

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  metalllizing tugboat
Posted by: thierry - 09-23-2006, 07:42 PM - Forum: Products and Services - Replies (3)

hello everybody

two questions
first . can you give me how many kilos of zn/al per square meter for a tickness of 250 ??
second. how many hours work a nozzle before to change (average)?
regards
thierry

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  Not receiving Forum Email
Posted by: Gordon - 09-23-2006, 05:00 PM - Forum: Forum and Website - Replies (4)

It appears that people with aol.com and redffmail.com email accounts may be experiencing problems with receiving automated email from this forum server. Sorry, at the moment I can only suggest that you change to a different email account for use with this forum.

Any member that would like an invitation to set up a Googlemail (Gmail) account (which seems to work well with the forum) just PM or email a request.

If anybody has problems with other email accounts please let us know, so at least we can pre-warn members of the problem.

Note: Please use this email address and not the forum email facility if you are experiencing problems.

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Rolleyes metallizing hull tugboat
Posted by: thierry - 09-20-2006, 03:35 PM - Forum: Surface Engineering Threads - Replies (9)

dear members
i am new in the forum and new in metallizing
i have 4 old metco flame gun ( model 4E and type Y) but new with many parts, but there is one problem to find a propane nozzle (P1/8)
where it's possible to find one or two?
what kind of wire and what tickness is the best for corrosion?
(99.9% zn or 85%zn and 15% al)
what is the best solution to clean and remove old grease in metco gearbox?
what kind of modern grease must i put in?
what kind of sand for the sand blasting unit?
i think it's enough for the first mail
thanks
best regards everybody
thierry

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  Micro Hardness (Vickers) by HVOF
Posted by: Alexangel1226 - 09-17-2006, 03:54 PM - Forum: Surface Engineering Threads - Replies (14)

Gordon,

This is Alex. First, i would like to comment on the new forum interface, much professional and better.

Regarding my question on microhardness sprayed by HVOF. I would like to know what are the factors that affect the microhardness of a HVOF coating. If my mirco metallorgraphy has pass the photo standard, what would possibly be the factors which fails the vickers hardness test. Would increasing the density of coating help? or oxide concentration? as oxide will increase the coating hardness(Rockwell).

To increase the density or microhardness, what should be the key parameters to adjust or look into? stand-off distance? HVOF fuel or O2 gas mass flow? or turntable speed?

Pls advice.Thanks

Regards,
Alex

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