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earnestpaul
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Join Date: Jun 2008
Location: Gujarat
Posts: 43
Good Answers: 1

Diamond markings on metal jacketing

09/23/2008 12:28 AM

Dear All ,

The diamond markings tat we provide on the surface of the metal jacketing for the insulated ducts (Hot Insulation ) should be from inside or outside ? wt is the the significant use of this diamond markings techincally ?

Regards

Earnest.
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Sparkstation
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New Zealand - Member - Interested in everything- see my Profile please APIX Pilot Plant Design Project - Member - Member Engineering Fields - Electrical Engineering - Member Engineering Fields - Power Engineering - Member Engineering Fields - Civil Engineering - Member Hobbies - Musician - Autoharp and Harmonica Hobbies - Hunting - Member Hobbies - Fishing - Member

Join Date: Nov 2007
Location: Christchurch, (The Garden City), South Island, New Zealand
Posts: 4395
Good Answers: 230
#1

Re: Diamond markings on metal jacketing

09/23/2008 2:02 AM

Hello earnestpaul

Please supply a picture of the "Diamond Markings".

It is possible that the "Diamond Markings" you are talking about are placed there by the sheet metal fabricators, to stiffen the sheet metal, and prevent annoying vibrations from being transmitted along the ducting.

Without a picture, it is not possible to know which "diamond Markings" you are meaning.

To place a picture into a post, please refer: http://cr4.globalspec.com/thread/15743/How-to-insert-Graphics-into-your-Post-to-make-it-more-readable-or-interesting

Reply here, with

Kind Regards....

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Bill H.
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Join Date: May 2007
Location: Hurst, Texas
Posts: 178
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#2

Re: Diamond markings on metal jacketing

09/24/2008 9:48 AM

It is indeed for stiffening/dampening.

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 Bill H.
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cnpower
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Engineering Fields - Control Engineering - New Member China - Member - New Member

Join Date: Sep 2006
Location: CHINA
Posts: 2945
Good Answers: 14
#3

Re: Diamond markings on metal jacketing

09/24/2008 10:26 AM

are you meaning diamond coating film?
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coconutpete
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Join Date: Feb 2007
Location: Suva Fiji Islands
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#4

Re: Diamond markings on metal jacketing

09/24/2008 5:38 PM

This is for stiffening and sound damping normaly the stamping is from the inside I am not sure if it would make any difference to performance but I have never seen it the other way.

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 "Multa ferunt anni venientes commoda secum, Multa recedente adimiunt". (The years as they come bring many agreeable things with them; As they go they take many away).
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dadw5boys
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Join Date: Feb 2006
Location: Piney Flats, Tennessee
Posts: 1740
Good Answers: 23
#5

Re: Diamond markings on metal jacketing

09/24/2008 9:03 PM

Never seen any done from the outside. I would suggest it is from the inside because of a production method of machine setup.

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