MS TRADING Pursult Exellence Since 1991 - Resistance Welding Electrodes: Do's and Don'ts

346 On-nuch Road
Prawet Bangkok 10250 Thailand

+66(0)2 328 8302

  • Use standard electrodes wherever possible.
  • Avoid special, offset or irregular tips when the job can be done with a standard straight tip.
  • Use the most suitable tip diameter for the thickness of stock being welded.
  • Don't use small tips on heavy gauge welding jobs or large tips on small work.
  • Use open sight drains to observe more readily the water flow through the holders.
  • Don't forget to turn on the cooling water full force before starting to weld.
  • Connect the water inlet hose to the proper holder inlet so that the water flows through the center cooling tube first.
  • Never use water hose that will not fit the holder water connection nipples snugly.
  • Internally cool the spot welding tips with cool water flowing at a rate of at least 2 liter per minute through each tip.
  • Do not allow water connections to become leaky, clogged or broken.
  • Be sure the internal water cooling tube of the holder projects into the tip water hole to within 6mm of the tip hole bottom.
  • Avoid using holders with leaking or deformed tapers.
  • Adjust the internal water cooling tube of the holder to the proper height when changing to a different length tip.
  • Never use electrode holders that do not have an adjustable internal water cooling tube.
  • Be sure top of adjustable water cooling tube in holders is cut at an angle so as to avoid jamming tip down and shutting water off.
  • Do not permit adjustable water tube to be "frozen" by accumulation of deposits. A few drop of oil periodically will keep the tube free.
  • place a thin film of cup grease on the tip taper prior to inserting in the holder, to make it easier to remove.
  • Do not allow electrodes to remain idle in tapered holder seats for extended periods.
  • Use ejector type holders for easy removal of tips and to avoid damage to tip taper.
  • Don't use pipe wrenches or similar tools in removing electrodes.
  • Keep the tip taper and holder taper clean, smooth and free of foreign deposits.
  • Avoid using white lead or similar compounds to seal a leaking taper.
  • Dress spot welding electrodes frequently to maintain the quality of the welds.
  • Never permit a spot welding tip to mushroom enough to make dressing difficult.
  • Dress electrodes in a lathe to their original contour whenever possible.
  • Never dress electrodes with a coarse file.
  • Use a rawhide or rubber mallet for striking holder or tips in aligning operations.
  • Don't pound on the holder or tip with a steel hammer in aligning the welder arms.
  • Provide flood cooling on both sides of seam welding wheel.
  • Avoid the use of seam welder wheels too thin to stand the heat or pressure of your job.
  • Use properly designed knurling wheels to maintain proper seam welding wheel shape.
  • Do not permit seam welding wheel to run off the corners of the work being welded.