lead burning การใช้

• The torch used for lead burning is a small, hot, gas flame.
• Lead burning is " not " used as part of plumbing work for installed pipework.
• Welding lead or'lead burning'was much more common in the 19th century to make some pipe connections and tanks.
• Many gas welding processes, such as lead burning, are typically autogenous and a separate wire filler rod of the same metal is only added if there is a gap to fill.
• The HAIS sections had to be joined; the jointing process was a form of welding known as " lead burning "; the projected length of pipeline required 75 joints and it was vital that the joints did not fail during the handling and laying or during normal operation.