We are using E 7018-1 H4 Vacuum packed Electrodes for our project. ( Refer attachments ) , where manufacturer recommendations is mentioned as :
HD [ ml/100g] : at opening time : <5
Working time after opening : 9h at 80% RH / 27 deg C
After this period rebaking : 2h/340-360 deg C
Brand : Supercito VP Medium ,Oerlikon , Air Liquide Wedling France.
Weather Condition at site : 78- 80 % Humidity , Temp 26-30 Deg C.
My question is :
- After opening packet at the start of the days work , is it necessary to transfer a pack of electrodes to a portable quiver for holding at temp 100 deg C to prevent further moisture pick up ? or it is not required as manufacturer says that after opening up to 9 hrs it can be used at 80% / 27 deg C .
- Electrodes rebaking cycle depends upon which factors? Some client specifies recycling 1 time , some 2 times ... [ As per BIS 13851:1993 , ( R 2006) - Storage & redrying of coverd electrodes before use recommendations- 3 times ]
Please clarify .
Thanks & regards.
Abhishek Ghosh
Indonesia
-- To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
No comments:
Post a Comment