{"id":4562,"date":"2019-10-28T11:30:00","date_gmt":"2019-10-28T11:30:00","guid":{"rendered":"https:\/\/www.greenstone-tech.com\/?p=4562"},"modified":"2025-10-31T06:21:29","modified_gmt":"2025-10-31T06:21:29","slug":"analiza-tehnologiei-traditionale-de-placare-cu-laser-de-ultra-mare-viteza","status":"publish","type":"post","link":"https:\/\/www.greenstone-tech.com\/ro\/analysis-of-traditional-ultra-high-speed-laser-cladding-technology\/","title":{"rendered":"Analiza tehnologiei tradi\u021bionale de placare cu laser de vitez\u0103 ultra-rapid\u0103"},"content":{"rendered":"<p>\u00cen domeniul produc\u021biei industriale, \u00eembun\u0103t\u0103\u021birea rezisten\u021bei la uzur\u0103 a materialelor pentru a rezolva problemele de uzur\u0103 localizat\u0103 a devenit o abordare tehnic\u0103 important\u0103. Procesele tradi\u021bionale de placare servesc \u00een principal dublului scop de a restabili dimensiunile pieselor \u0219i de a consolida performan\u021ba suprafe\u021bei. Aceste tehnologii utilizeaz\u0103 diverse surse de c\u0103ldur\u0103, inclusiv fl\u0103c\u0103ri, arcuri \u0219i arcuri cu plasm\u0103, pentru a aplica materiale de placare pe suprafa\u021ba piesei.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">1. <strong>Principiile de baz\u0103 ale proceselor tradi\u021bionale de placare<\/strong><\/h5>\n\n\n\n<p>Stratul de placare se acumuleaz\u0103 pe suprafa\u021ba piesei sub propria sa greutate, form\u00e2nd un strat func\u021bional cu o rezisten\u021b\u0103 excelent\u0103 la uzur\u0103 \u0219i coroziune. \u00cen prezent, \u00een punerea \u00een aplicare a proceselor de placare, carbura de tungsten este frecvent utilizat\u0103 ca material auxiliar cheie pentru a preg\u0103ti materiale specifice plac\u0103rii. Acestea includ dou\u0103 tipuri principale: electrozi de placare din carbur\u0103 de tungsten \u0219i s\u00e2rme de sudur\u0103 din carbur\u0103 de tungsten.<\/p>\n\n\n\n<p>Electrozii de placare cu carbur\u0103 de tungsten sunt produ\u0219i \u00een principal folosind dou\u0103 abord\u0103ri tehnice principale:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Utilizarea s\u00e2rmei de o\u021bel cu con\u021binut sc\u0103zut de carbon ca material de baz\u0103<\/strong> \u0219i ad\u0103ugarea de particule de carbur\u0103 de tungsten la acoperire pentru a-i spori func\u021bionalitatea.<\/li>\n\n\n\n<li><strong>Umplerea direct\u0103 a particulelor de carbur\u0103 de tungsten \u00een \u021bevi din o\u021bel cu con\u021binut sc\u0103zut de carbon sau o\u021bel aliat<\/strong> pentru a forma electrozi compoziti.<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">2. <strong>Metode de placare \u0219i caracteristici tehnice<\/strong><\/h5>\n\n\n\n<p>\u00cen plus fa\u021b\u0103 de metodele de preg\u0103tire a materialului de placare cu carbur\u0103 de tungsten, procesele principale de placare includ \u0219i trei metode tipice: sudarea manual\u0103 cu arc, sudarea cu gaz oxiacetilenic \u0219i sudarea cu gaz inert de tungsten (TIG).<\/p>\n\n\n\n<p>Diferen\u021ba esen\u021bial\u0103 dintre aceste metode de sudare prin depunere este c\u0103 particulele de carbur\u0103 de tungsten nu sunt depuse \u00een prealabil \u00een timpul procesului de placare. Ca urmare, procesul de sudare conduce la diferen\u021be semnificative \u00een ceea ce prive\u0219te efectele de ardere \u0219i decarburizare, cauz\u00e2nd varia\u021bii \u00een performan\u021ba final\u0103 de rezisten\u021b\u0103 la uzur\u0103 a suprafe\u021bei placate.<\/p>\n\n\n\n<p>Sudarea manual\u0103 cu arc utilizeaz\u0103 parametri similari proceselor conven\u021bionale de sudare manual\u0103 cu arc. De exemplu, cu un electrod cu diametrul de 4,0 mm, curentul de placare este de obicei controlat \u00een jurul valorii de 170A, iar temperatura arcului poate ajunge la aproximativ 4000\u00b0C.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">3. <strong>Mecanismul impactului termic al particulelor de carbur\u0103 de tungsten<\/strong><\/h5>\n\n\n\n<p>Pentru a ob\u021bine efectul dorit de \u00eembun\u0103t\u0103\u021bire a uzurii, este esen\u021bial s\u0103 se ia \u00een considerare comportamentul termic al particulelor de carbur\u0103 de tungsten \u00een timpul procesului de sudare:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Particule fine de carbur\u0103 de tungsten<\/strong>, datorit\u0103 suprafe\u021bei lor specifice mai mari, au tendin\u021ba de a suferi arsuri grave \u00een timpul sud\u0103rii.<\/li>\n\n\n\n<li>Dup\u0103 ardere, particulele fine se regenereaz\u0103 \u00een cristale de carbur\u0103 de tungsten \u0219i alte structuri compozite.<\/li>\n\n\n\n<li><strong>Particule grosiere de carbur\u0103 de tungsten<\/strong> se ard mai pu\u021bin, dar pe suprafa\u021ba lor se va forma un strat de decarburare.<\/li>\n\n\n\n<li>Formarea acestui strat de decarburare duce direct la o sc\u0103dere a rezisten\u021bei la uzur\u0103 a materialului.<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">4. <strong>Evaluarea procesului \u0219i stadiul actual al aplic\u0103rii<\/strong><\/h5>\n\n\n\n<p>Av\u00e2nd \u00een vedere limit\u0103rile tehnice de mai sus, metodele tradi\u021bionale nu au ob\u021binut rezultatele ideale \u00een depunerea straturilor \u00eent\u0103rite cu carbur\u0103 de tungsten. Cu toate acestea, datorit\u0103 u\u0219urin\u021bei lor de operare \u0219i utiliz\u0103rii pe scar\u0103 larg\u0103 a echipamentelor, aceste metode sunt \u00eenc\u0103 aplicate \u00eentr-o anumit\u0103 m\u0103sur\u0103 \u00een anumite scenarii.<\/p>\n\n\n\n<p>Greenstone-Tech efectueaz\u0103 cercet\u0103ri aprofundate \u0219i optimizeaz\u0103 tehnic procesele tradi\u021bionale \u0219i dezvolt\u0103 o nou\u0103 genera\u021bie de tehnologie de placare cu laser. Aceasta are ca scop dep\u0103\u0219irea deficien\u021belor inerente ale metodelor tradi\u021bionale \u0219i furnizarea c\u0103tre clien\u021bi a unor solu\u021bii mai avansate de \u00eembun\u0103t\u0103\u021bire a suprafe\u021belor.<\/p>","protected":false},"excerpt":{"rendered":"<p>In the field of industrial manufacturing, enhancing the wear resistance of materials to address localized wear issues has become an important technical approach. Traditional cladding processes primarily serve the dual purpose of restoring part dimensions and strengthening surface performance. These technologies use various heat sources, including flames, arcs, and plasma arcs, to apply cladding materials [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4563,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5,3],"tags":[102],"table_tags":[],"class_list":["post-4562","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-professional-knowledge","category-blog","tag-sheldon-li"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.greenstone-tech.com\/ro\/wp-json\/wp\/v2\/posts\/4562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.greenstone-tech.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.greenstone-tech.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.greenstone-tech.com\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.greenstone-tech.com\/ro\/wp-json\/wp\/v2\/comments?post=4562"}],"version-history":[{"count":3,"href":"https:\/\/www.greenstone-tech.com\/ro\/wp-json\/wp\/v2\/posts\/4562\/revisions"}],"predecessor-version":[{"id":5337,"href":"https:\/\/www.greenstone-tech.com\/ro\/wp-json\/wp\/v2\/posts\/4562\/revisions\/5337"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.greenstone-tech.com\/ro\/wp-json\/wp\/v2\/media\/4563"}],"wp:attachment":[{"href":"https:\/\/www.greenstone-tech.com\/ro\/wp-json\/wp\/v2\/media?parent=4562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.greenstone-tech.com\/ro\/wp-json\/wp\/v2\/categories?post=4562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.greenstone-tech.com\/ro\/wp-json\/wp\/v2\/tags?post=4562"},{"taxonomy":"table_tags","embeddable":true,"href":"https:\/\/www.greenstone-tech.com\/ro\/wp-json\/wp\/v2\/table_tags?post=4562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}