Welding masks are essential to protect the wearer from the side-effects of welding. Flash-burn, sparks and excessive heat are all common risks in the welding process, and welding helmets and masks provide much needed protection for the welders face and eyes.RS offers a wide range of adjustable helmets and masks, with solutions to support your workplace requirements.
How Do Welding Masks Work?
A welding mask is a protective head shield that covers your face and eyes. It provides a fixed-darkness or auto-darkening viewing portal so you can concentrate on your work without your eyes being damaged by flash burn or errant sparks. They are typically constructed of fibreglass or Polyamide, which offers sufficient protection while remaining relatively lightweight.
What are the disadvantages of auto-darkening welding masks compared with fixed-darkness masks?
There are two main types of welding mask- those that have a fixed-darkness viewing portal, and those that have an auto-darkening viewing portal. Fixed darkness usually has a flip-up face shield, so you can see normally when you are not welding, and then nod your head to put the mask in place once you are ready to weld.
Auto-darkening helmets use a polarizing filter that automatically prevents harmful flash burn to the welder. This has the advantage that the wearer does not have to adjust their helmet for working, saving them time and effort. As they do not need to be adjusted, they reduce the risk of exposure to harmful light.
The major disadvantage of a darkening welding helmet is that they are often more expensive that their fixed-darkness counterparts. It is important to choose the welding mask that is best suited to the job at hand.
Welding Mask Applications
Metal arc welding Gas tungsten arc welding Gas metal arc welding Plasma arc cutting Grinding Brazing
Masks ya kulehemu ni muhimu ili kumlinda mtumiaji kutokana na athari za upande wa kulehemu. Kuungua kwa flash, moto wa moto na moto wa kupita kiasi ni hatari zote za kawaida katika mchakato wa kulehemu, na kofia za chuma na masks hutoa ulinzi unaohitajika sana kwa uso na macho ya welder. Masks ya kulehemu hufanyaje kazi? Masks ya kulehemu ni kifuniko cha kuhifadhi kichwa ambacho hufunika uso na macho yako. Inaweka giza la kudumu au portal ya kutazama yenye giza la moja kwa moja ili uweze kuzingatia kazi yako bila macho yako kuharibiwa na moto wa flash au miali ya kutembea. Wao ni kawaida kujengwa ya fiberglass au Polyamide, ambayo inatoa ulinzi wa kutosha wakati kubaki kiasi nyepesi. Ni nini hasara ya auto-kutoweka welding masks ikilinganishwa na masks fasta-kutoweka? Kuna aina mbili kuu ya welding mask- wale ambao kuwa fasta- giza kuangalia portal, na wale ambao kuwa na auto-kutoweka kuangalia portal. Kwa kawaida, giza la kudumu lina kifuniko cha uso kinachoweza kugeuka, ili uweze kuona kawaida wakati haufanyi kulehemu, kisha utikise kichwa chako kuweka kinyago mahali hapo mara tu unapokuwa tayari kulehemu. Kofia za chuma zenye giza la kiotomatiki hutumia kichujio cha polarizing ambacho huzuia kiotomatiki kuchoma kwa mwangaza wenye madhara kwa mshonaji. Hii ina faida kwamba mtumiaji hana kurekebisha kofia yao ya chuma kwa ajili ya kazi, kuokoa yao muda na juhudi. Kwa kuwa hazihitaji kurekebishwa, hupunguza hatari ya kuathiriwa na nuru yenye kudhuru. Hasara kubwa ya kofia ya chuma ya kuchoma yenye giza ni kwamba mara nyingi ni ghali zaidi kuliko wenzao wenye giza la kudumu. Ni muhimu kuchagua kinyago cha kulehemu kinachofaa zaidi kwa kazi inayopatikana. Welding Mask Matumizi Metal arc welding Gesi tungsten arc welding Gesi chuma arc welding Plasma arc kukata Grinding Brazing