The joining procedure that is found relatively simpler in form of doing practically is the electro fusion welding. In contrast to other methods, it is not just little expensive method but it is counted among the efficient methods. But remember, that each and every step of it demands extreme caution as well as also know that a small mistake in any of the step can produce the bad joining. The article will shed light on the scraping, that is the first step of welding.
Make sure that when you have planned for electro fusion, the surface of your pipes must be always clean. You should clean it with dry and clean cellulose paper. It might be possible that it apparently appears to be free from al kinds of dirt already. This is a simple way for reducing the potential risk of the pollution of the pipe part you are going to do welding on.
On occasional basis, you can use water for the cleaning operation, the paper towels or the rags that do not leave their any remains are always preferable for using before starting of scraping. You must abide by one propositioning obligation that is the area that is selected for welding must be ket dried. The electro fusion welders must make sure their welding pipes are completely dry and free from any moisture. Their precaution will ensure that there is no humidity present which will let bubbles appear on your jointing pipes. This may appear and inflict serious problems afterwards.
The scraping is done with the aim of eliminating the superficial layer of oxidation which is already present in the pipes ( polyethylene-PE). The ending of the pipes are always scraped. Once, you have cleaned the pipe with the discussed paper above, you should make sure that the cleaned surface should not be touched. One thing to remember is that you should not apt abrasive paper or sandpaper for preparing your pipes’ surfaces as they will not only damage your surfaces but also leave their particles behind.
Are you aware of the differences between mechanical scrapers and manual scrapers. The penetration surface is controlled and material’s uniform layer is eliminated by the mechanical scrapers. Whereas, on contrary when manual scrapers are used, it is the direct handling done by the electro fusion welders.
It can be very good tip to mark on the points where you want scraping to be done. Delimit the surface area of pipes where you are planning to scratch. The usage of visible marker will indicate that the area is needed to be scratched. Removing of coloured markers will show area has been scratched.