make up natural cara make up make up tutorial make up korea make up minimalis make up artis make up mata belajar make up make up wardah alat make up makeup forever indonesia makeup artist jakarta tips make up barbie make up natural make up make up wajah make up pesta make up syahrini makeup mata makeup minimalis peralatan make up make up cantik make up mac make up kit jual make up make up sederhana perlengkapan make up gambar make up vidio make up cara makeup minimalis wardah make up make up pac make up glamour cara memakai makeup make up panggung harga make up make up modern make up alami make up dasar pixy make up make up muslimah make up oriflame make up jepang makeover cosmetic make up ultima make up sariayu grosir make up makeup fantasi makeup pesta tas makeup langkah make up make up pria make up malam alat makeup tahapan make up produk make up shading make up mak up make up kebaya make up jilbab make up inez make up simpel contoh make up cara ber makeup makeup wajah tanpa make up make up terbaru toko make up mac makeup indonesia make up soft urutan make up trik make up makeover makeup brand gusnaldi make up paket make up panduan make up jual makeup brush make up bagus alat2 make up make up gusnaldi aplikasi make up alat alat makeup dasar make up inez make up peralatan makeup make up wanita make up berjilbab make up tebal sejarah make up make up maybeline make up branded make up siang tata cara makeup reseller make up make up muslim make up maybelin warna make up tips make up artist rias make up make up mata make up artis belajar make up make up artist kursus make up kuas make up make up forever indonesia jual make up mac indonesia make up make up artist indonesia harga make up forever jual make up online make up pac make up forever jakarta make up oriflame jual make up forever make up online shop indonesia harga make up sekolah make up grosir make up harga make up maybelline jual make up murah make up terbaru mak up mac make up indonesia sofia make up make up kit murah mac makeup indonesia produk make up jual make up kit make up store indonesia make up forever academy jakarta toko make up online jual make up set jual make up mac make up beauty jual make up branded produk make up mac make up forever harga make up mac indonesia produk make up artis jual make up palette produk make up forever make up palette murah before after make up pengantin before after make up sendiri before n after hasil makeup contoh make up karakter contoh riasan pengantin before n after harga make up wisuda harga make up artist harga make up forever make up wisuda rias wisuda di jogja Daftar harga make up forever daftar harga make up mac daftar harga kosmetik make up forever makeup wisuda harga makeup wisuda kursus make up di yogyakarta kursus make up di jogja kursus make up jogja kursus make up yogyakarta kursus kecantikan di yogyakarta kursus kecantikan di jogja kursus make up artist di jogja kursus rias pengantin di jogja kursus rias di yogyakarta kursus tata rias di yogyakarta rias pengantin muslim jogja jasa kreasi jilbab wisuda yogyakarta jasa rias make up wisuda murah bagus bisa dpanggil tempat make uf di jigja yang bagus rias wisuda murah dan berkualitas yogyakarta pakar kreasi jilbab di jogja make uper natural yogya make up wisuda hijab area jogja make up dan kreasi jilbab yang bagus di jogja jasa make up natural untuk wisuda jogja makeup jogja make up jogja makeup yogyakarta make up yogyakarta makeup wisuda jogja make up wisuda jogja make up wisuda yogyakarta makeup wisuda yogyakarta
Search - Content
Search - People/Events
Search - Forums
Search - Newsfeeds



jobcenterbanner

FacebookLinkedinPinterestYoutube
Welcome, Guest
Username: Password: Remember me
Nonferrous topics such as copper and aluminum, annealing, etc. go here.
  • Page:
  • 1
  • 2

TOPIC: Torsion Test in Copper Rod 8mm

Torsion Test in Copper Rod 8mm 2 years 6 months ago #1342

I want to know
Are there any Standards to define the Torsion Test ( 25RTF & 14RTF ) for Copper Rod (8mm). What Is the difference when changing the Gauge Length of Torsion Tester?

Regards,
BalaGanesh.S.
The administrator has disabled public write access.

Re: Torsion Test in Copper Rod 8mm 2 years 6 months ago #1343

Hello,

Unfortunately I do not have access to my reference books at the moment so I cannot tell you more about the Standard. Hopefully there are others that can assist you in this regard.

Changing the length of the sample under test should have an effect. I should imagine that, as the distance decreases, the severity of the test increases.

There have already been discussions regarding torsion testing copper rod.

kishor: 07-21-2009 www.wirenet.org/forum/viewmessages.cfm?Forum=12&Topic=720
copper: 08-05-2009 www.wirenet.org/forum/viewmessages.cfm?Forum=12&Topic=732

It is interesting to note however that you are all from the same small country and likely the same plant. Are you just one person, logging in under different names?

Regards
Peter J. Stewart-Hay
Principal
Stewart-Hay Associates
www.Stewart-Hay.com
519 641-3212
The administrator has disabled public write access.

Re: Torsion Test in Copper Rod 8mm 2 years 6 months ago #1344

Since after every discussion this topic is coming up about country and plant, I would like to clarify that although a small country two continous copper casting plants are in operation from last more than one year. Both are from different manufacturer and third plant will be operational within next three months and also from third manufacturer.
So definately it is not the same person and same plant.
The administrator has disabled public write access.

Re: Torsion Test in Copper Rod 8mm 2 years 6 months ago #1345

Oops!

Thank you very much for the information kishor. I was aware of the new plant but certainly was not aware that there are two continuous copper casting plants in your country, let alone three.

I stand corrected.

Thank you again.

Regards
Peter J. Stewart-Hay
Principal
Stewart-Hay Associates
www.Stewart-Hay.com
519 641-3212
The administrator has disabled public write access.

Re: Torsion Test in Copper Rod 8mm 2 years 6 months ago #1346

Hello baji1985

I recommend you to read (as it was several time mentioned previously on this forum)to read Robert L.Hamill and Sharon K.Young work "A new concept in the evaluation of the 10x10 twist test for copper rod".
It's very interesting and you have all the required information that you need regarding the twist test.
The administrator has disabled public write access.

Re: Torsion Test in Copper Rod 8mm 2 years 6 months ago #1347

Dear Bala Ganesh,

I wonder if 8mm rod you are dealing with is "as cast" structure (direct casting to 8mm, without hot rolling).

If so, there is not any standard for torsion test.

However there is an AD HOC torsion test I developed together with some colleagues almost 15 years ago (and it has shown its usefulness since).

Length of sample 250mm (free space between grips), one fixed grip (I mean completely fixed, not the sliding type used for ETP torsion tests). The turning grip should not go faster than 30 rpm.

You let the system work in one direction until the rod breaks.

Any rod with 45 or more turns to break will be good for normal gauge wires (let's say up to 0.2mm). Above 50 TTB the rod will be OK for micron sizes (experienced only up to 40microns).

Note: a break at the grip invalidates the test.
The administrator has disabled public write access.
  • Page:
  • 1
  • 2
Time to create page: 0.329 seconds