أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
<p>It is some times good to challenge our inquisitiveness, when we get to the field and meet a standard procedure that had been written by someone we just follow it and the job seems going on fine. But on the contrary if you now at very hem of affairs what do you do? because now have to defend your tittle.</p> <p>That is why a community of specialised professional like this is imperative and it is a good place to belong. </p>
To get proper penetration in root welding,7016, or 8016, (as per the WPS or client requirements) electrodes are normally using for API 650 storage tanks. These electrodes must use in straight polarity (-) to get a better penetration comparatively less slag and an excellent mechanical properties. then for the fillup and cap 7018 or 8018 are the electrodes what we are normally using this must be in reverse polarity (+) for a stable arc.
