Hi, interpass temperature : the highest temperature in the weld joint immediately prior to welding, or in the case of multiple pass welds, the highest temperature in the section of the previously deposited weld metal, immediately before the next pass is started. So you have to record the temp.immediately before the next pass is started. Thanks & Regards, (Karthik)
Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282
--- On Tue, 10/5/10, limesh M <limesh78@gmail.com> wrote: From: limesh M <limesh78@gmail.com> Subject: [MW:7369] Interpass temperature during PQR To: "Materials & Welding" <materials-welding@googlegroups.com> Date: Tuesday, October 5, 2010, 1:23 PM
Dear All, Design code - ASME B31.3 Welding Code - ASME SEC IX Client Spec Says - Interpass temperature to be monitored and measured during welding. During PQR I observed that run out length of one electrode was around 75-100 mm.So the welder couldn't complete the joint in a single stretch.In this condition, should I take the interpass temperature before using the second electrode from the first bead end? More over,the welder can complete the root pass by using three electrodes/filler wire.In this condition should I measure and record three interpass temperatures?ie, first temperature,ambient(starting),second temperature ,during starting of second electrode,Third temperature during staring of third elecrode. Or one temperature is enough just before starting hot pass? Regards, Limesh78 -- 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/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.
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