{"id":1515,"date":"2026-10-09T04:33:24","date_gmt":"2026-10-09T04:33:24","guid":{"rendered":"https:\/\/gweld-tech.com\/?post_type=blog&#038;p=1515"},"modified":"2026-10-09T04:33:25","modified_gmt":"2026-10-09T04:33:25","slug":"tig-tungsten-contamination-troubleshooting-guide","status":"publish","type":"blog","link":"https:\/\/gweld-tech.com\/zh\/blogs\/tig-tungsten-contamination-troubleshooting-guide\/","title":{"rendered":"TIG Tungsten Contamination: Causes, Grinding and Prevention"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>TIG tungsten contamination<\/strong> can turn a repeatable welding operation into a sequence of electrode changes, uncertain arc starts and interrupted production. However, a dark tip, a rounded end or an unstable arc does not identify one fault by itself. Industrial teams need to distinguish contact contamination, shielding failure, thermal overload and preparation problems before changing the welding procedure or replacing the power source.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This guide explains how to capture the symptom, isolate the likely cause and return a station to controlled production. It connects electrode inspection with shielding, AC\/DC settings, grinding practice and procurement records. The proposed checklists are workflow aids, not a qualified welding procedure, a defect acceptance standard or instructions for internal machine repair. Use the applicable WPS, equipment manual and quality plan for the final decision.<\/p>","protected":false},"excerpt":{"rendered":"<p>TIG tungsten contamination can turn a repeatable welding operation into a sequence of electrode changes, uncertain arc starts and interrupted production. However, a dark tip, a rounded end or an unstable arc does not identify one fault by itself. Industrial teams need to distinguish contact contamination, shielding failure, thermal overload and preparation problems before changing [&hellip;]<\/p>\n","protected":false},"featured_media":1508,"menu_order":0,"template":"","blog_category":[51],"class_list":["post-1515","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-technical-insights"],"_links":{"self":[{"href":"https:\/\/gweld-tech.com\/zh\/wp-json\/wp\/v2\/blog\/1515","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gweld-tech.com\/zh\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/gweld-tech.com\/zh\/wp-json\/wp\/v2\/types\/blog"}],"wp:attachment":[{"href":"https:\/\/gweld-tech.com\/zh\/wp-json\/wp\/v2\/media?parent=1515"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/gweld-tech.com\/zh\/wp-json\/wp\/v2\/blog_category?post=1515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}