{"id":4848,"date":"2022-05-27T01:20:00","date_gmt":"2022-05-27T01:20:00","guid":{"rendered":"https:\/\/www.greenstone-tech.com\/?p=4848"},"modified":"2025-10-31T05:20:49","modified_gmt":"2025-10-31T05:20:49","slug":"technologie-laseroveho-platovani-se-stredovym-posuvem-komplexni-srovnani-s-jinymi-metodami-podavani-prasku","status":"publish","type":"post","link":"https:\/\/www.greenstone-tech.com\/cs\/center-feed-laser-cladding-technology-a-comprehensive-comparison-with-other-powder-feeding-methods\/","title":{"rendered":"Technologie laserov\u00e9ho pl\u00e1tov\u00e1n\u00ed se st\u0159edov\u00fdm posuvem: Komplexn\u00ed srovn\u00e1n\u00ed s jin\u00fdmi metodami pod\u00e1v\u00e1n\u00ed pr\u00e1\u0161ku"},"content":{"rendered":"

Laserov\u00e1 v\u00fdrobn\u00ed technologie se neust\u00e1le vyv\u00edj\u00ed, laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong><\/a>\u00a0se stala pokro\u010dilou technikou povrchov\u00e9ho in\u017een\u00fdrstv\u00ed s v\u00fdznamn\u00fdmi v\u00fdhodami p\u0159i obnov\u011b, zpev\u0148ov\u00e1n\u00ed povrchu a oprav\u00e1ch sou\u010d\u00e1st\u00ed. Metody pod\u00e1v\u00e1n\u00ed pr\u00e1\u0161ku hraj\u00ed z\u00e1sadn\u00ed roli p\u0159i ur\u010dov\u00e1n\u00ed \u00fa\u010dinnosti technologie. laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong>, co\u017e p\u0159\u00edmo ovliv\u0148uje kvalitu obkladov\u00e9 vrstvy a \u00fa\u010dinnost procesu. Technologie laserov\u00e9ho pl\u00e1tov\u00e1n\u00ed se st\u0159edov\u00fdm pod\u00e1v\u00e1n\u00edm, vyvinut\u00e1 jako nov\u00e1 metoda pod\u00e1v\u00e1n\u00ed pr\u00e1\u0161ku na z\u00e1klad\u011b tradi\u010dn\u00edho mimoos\u00e9ho a koaxi\u00e1ln\u00edho pod\u00e1v\u00e1n\u00ed pr\u00e1\u0161ku, je vhodn\u00e1 zejm\u00e9na pro vysokorychlostn\u00ed laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong><\/a>\u00a0aplikace. Tato metoda pln\u011b vyu\u017e\u00edv\u00e1 v\u00fdhod laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong><\/a>\u00a0v rovinnosti povrchu, \u00fa\u010dinnosti zpracov\u00e1n\u00ed a vyu\u017eit\u00ed pr\u00e1\u0161ku.<\/p>\n\n\n\n

Co je technologie laserov\u00e9ho pl\u00e1tov\u00e1n\u00ed se st\u0159edov\u00fdm posuvem?<\/strong><\/strong><\/h5>\n\n\n\n

Technologie st\u0159edov\u00e9ho posuvu, \u010dasto ozna\u010dovan\u00e1 jako technologie \u201clehk\u00e9ho pr\u00e1\u0161ku\u201d, se vyzna\u010duje jedin\u00fdm pr\u00e1\u0161kov\u00fdm kan\u00e1lem uprost\u0159ed pl\u00e1\u0161\u0165ov\u00e9 hlavy. Laserov\u00fd paprsek je rozlo\u017een ve tvaru prstence nebo ve v\u00edce paprsc\u00edch obklopuj\u00edc\u00edch tok pr\u00e1\u0161ku. B\u011bhem laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> kovov\u00fd pr\u00e1\u0161ek vyt\u00e9k\u00e1 z centr\u00e1ln\u00edho kan\u00e1lu p\u016fsoben\u00edm aerodynamiky a gravitace. Okoln\u00ed laserov\u00e9 paprsky se s pr\u00e1\u0161kem sb\u00edhaj\u00ed na povrchu obrobku. Pr\u00e1\u0161ek ve st\u0159edu je zah\u0159\u00edv\u00e1n laserovou energi\u00ed do roztaven\u00e9ho nebo polotaven\u00e9ho stavu a pot\u00e9 pad\u00e1 do roztaven\u00e9ho baz\u00e9nu, kde vytv\u00e1\u0159\u00ed hustou a hladkou vrstvu metalurgick\u00e9ho pojiva.<\/p>\n\n\n\n

Nyn\u00ed si rozebereme rozd\u00edly mezi st\u0159edov\u00fdm pod\u00e1v\u00e1n\u00edm laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> a dal\u0161\u00edmi metodami pod\u00e1v\u00e1n\u00ed pr\u00e1\u0161ku v n\u011bkolika kl\u00ed\u010dov\u00fdch dimenz\u00edch.<\/p>\n\n\n\n

1. V\u00fdrazn\u00e9 zlep\u0161en\u00ed vyu\u017eit\u00ed pr\u00e1\u0161ku, a\u017e 90%<\/strong><\/strong><\/h5>\n\n\n\n

V porovn\u00e1n\u00ed s tradi\u010dn\u00edmi koaxi\u00e1ln\u00edmi pneumatick\u00fdmi metodami pod\u00e1v\u00e1n\u00ed pr\u00e1\u0161ku se st\u0159edov\u00fdm pod\u00e1v\u00e1n\u00edm laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> pou\u017e\u00edv\u00e1 konstrukci s jedn\u00edm proudem pr\u00e1\u0161ku, kter\u00e1 zabra\u0148uje ztr\u00e1t\u00e1m zp\u016fsoben\u00fdm rozptylem p\u0159i sr\u00e1\u017ece v\u00edce proud\u016f pr\u00e1\u0161ku. P\u0159i vertik\u00e1ln\u00edm laserov\u00e9m pl\u00e1tov\u00e1n\u00ed se pro pod\u00e1v\u00e1n\u00ed pr\u00e1\u0161ku pou\u017e\u00edv\u00e1 ni\u017e\u0161\u00ed tlak vzduchu, co\u017e nejen prodlu\u017euje dobu kontaktu mezi pr\u00e1\u0161kem a laserem pro lep\u0161\u00ed taven\u00ed, ale tak\u00e9 sni\u017euje odrazy a rozptyl zp\u016fsoben\u00fd sr\u00e1\u017ekou pr\u00e1\u0161ku se substr\u00e1tem. Praktick\u00e9 aplikace ukazuj\u00ed, \u017ee tato technologie m\u016f\u017ee zlep\u0161it vyu\u017eit\u00ed pr\u00e1\u0161ku a\u017e na 90%, co\u017e m\u00e1 z\u00e1sadn\u00ed v\u00fdznam pro sn\u00ed\u017een\u00ed spot\u0159eby drah\u00fdch kov\u016f p\u0159i laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong>.<\/p>\n\n\n\n

2. Stabiln\u011bj\u0161\u00ed optick\u00fd syst\u00e9m podporuj\u00edc\u00ed dlouhodob\u00e9 kontinu\u00e1ln\u00ed zpracov\u00e1n\u00ed<\/strong><\/strong><\/h5>\n\n\n\n

P\u0159i koaxi\u00e1ln\u00edch a mimoos\u00fdch metod\u00e1ch pod\u00e1v\u00e1n\u00ed pr\u00e1\u0161ku dopad\u00e1 laserov\u00fd paprsek p\u0159\u00edmo na roztavenou l\u00e1ze\u0148 a vysok\u00e1 odrazivost a trval\u00e9 tepeln\u00e9 z\u00e1\u0159en\u00ed l\u00e1zn\u011b m\u016f\u017ee ru\u0161it optick\u00fd syst\u00e9m, co\u017e ovliv\u0148uje stabilitu dlouhodob\u00e9ho zpracov\u00e1n\u00ed. St\u0159edov\u00e9 pod\u00e1v\u00e1n\u00ed laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> Hlavy v\u0161ak vyvedou laserov\u00fd paprsek pod ur\u010dit\u00fdm \u00fahlem sklonu, \u010d\u00edm\u017e zabr\u00e1n\u00ed p\u0159\u00edm\u00e9mu odrazu paprsku zp\u011bt k optick\u00fdm sou\u010d\u00e1stem skrz roztavenou l\u00e1ze\u0148, a \u00fa\u010dinn\u011b tak izoluj\u00ed interferenci od tepeln\u00e9ho z\u00e1\u0159en\u00ed a rozst\u0159iku kovu. Proto je tato technologie vhodn\u00e1 zejm\u00e9na pro laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> \u00fakoly, kter\u00e9 vy\u017eaduj\u00ed nep\u0159etr\u017eit\u00fd sv\u011bteln\u00fd v\u00fdkon po del\u0161\u00ed dobu, co\u017e v\u00fdrazn\u011b zvy\u0161uje stabilitu a \u017eivotnost za\u0159\u00edzen\u00ed.<\/p>\n\n\n\n

3. Vysok\u00e1 \u00fa\u010dinnost opl\u00e1\u0161t\u011bn\u00ed, vhodn\u00e1 pro vysoce kvalitn\u00ed tenk\u00e9 vrstvy<\/strong><\/strong><\/h5>\n\n\n\n

Typicky laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> Technologie st\u0159edov\u00e9ho pod\u00e1v\u00e1n\u00ed dosahuje vysok\u00e9 \u00fa\u010dinnosti pl\u00e1tov\u00e1n\u00ed d\u00edky vysok\u00e9 \u00fa\u010dinnosti vazby mezi pr\u00e1\u0161kem a laserovou energi\u00ed. M\u016f\u017ee dos\u00e1hnout \u00fa\u010dinnosti pl\u00e1tov\u00e1n\u00ed 0,7-1,2 m\u00b2\/h (p\u0159i tlou\u0161\u0165ce pl\u00e1tovac\u00ed vrstvy 0,5-0,7 mm). Krom\u011b toho je k dispozici vysokorychlostn\u00ed laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> V\u00fdsledkem je velmi kr\u00e1tk\u00e1 doba setrv\u00e1n\u00ed taveniny v baz\u00e9nu, co\u017e minimalizuje z\u0159ed\u011bn\u00ed obkladov\u00e9 vrstvy a zaji\u0161\u0165uje, \u017ee vlastnosti substr\u00e1tu z\u016fstanou neovlivn\u011bny. Pl\u00e1tovac\u00ed vrstva vyroben\u00e1 touto technologi\u00ed se rovn\u011b\u017e vyzna\u010duje vynikaj\u00edc\u00ed drsnost\u00ed povrchu, dobrou odolnost\u00ed proti prasklin\u00e1m a minim\u00e1ln\u00ed tepelnou deformac\u00ed obrobku, tak\u017ee je ide\u00e1ln\u00ed pro povrchov\u00e9 ochrann\u00e9 n\u00e1t\u011bry nov\u00fdch sou\u010d\u00e1st\u00ed.<\/p>\n\n\n\n

4. Komplexn\u00ed srovn\u00e1n\u00ed st\u0159edov\u00e9ho a koaxi\u00e1ln\u00edho pod\u00e1v\u00e1n\u00ed pr\u00e1\u0161ku<\/strong><\/strong><\/h5>\n\n\n\n

V porovn\u00e1n\u00ed s tradi\u010dn\u00edmi koaxi\u00e1ln\u00edmi pneumatick\u00fdmi metodami pod\u00e1v\u00e1n\u00ed pr\u00e1\u0161ku se st\u0159edov\u00fdm pod\u00e1v\u00e1n\u00edm laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> nab\u00edz\u00ed v\u00fdhody ve tvaru toku pr\u00e1\u0161ku, po\u017eadavc\u00edch na tlak vzduchu a vyu\u017eit\u00ed energie. Struktura jedin\u00e9ho proudu pr\u00e1\u0161ku \u00fa\u010dinn\u011b zabra\u0148uje tomu, aby se pr\u00e1\u0161ek vz\u00e1jemn\u011b ovliv\u0148oval. N\u00edzk\u00fd tlak vzduchu a pomal\u00fd p\u0159\u00edsun pr\u00e1\u0161ku zvy\u0161uj\u00ed \u00fa\u010dinek oh\u0159evu pr\u00e1\u0161ku laserem a z\u00e1rove\u0148 potla\u010duj\u00ed odskok a rozst\u0159ikov\u00e1n\u00ed pr\u00e1\u0161ku. Aktu\u00e1ln\u00ed laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> ukazuj\u00ed, \u017ee p\u0159i obr\u00e1b\u011bn\u00ed se st\u0159edov\u00fdm posuvem vznikaj\u00ed jemn\u00e9 jiskry s minim\u00e1ln\u00edm rozst\u0159ikem, co\u017e zlep\u0161uje kvalitu povrchu a zvy\u0161uje opakovatelnost procesu.<\/p>\n\n\n\n

Shrnut\u00ed a v\u00fdhled<\/strong><\/strong><\/h5>\n\n\n\n

Mimoos\u00e9 a koaxi\u00e1ln\u00ed metody pod\u00e1v\u00e1n\u00ed pr\u00e1\u0161ku byly \u0161iroce pou\u017e\u00edv\u00e1ny p\u0159i v\u00fdvoji. laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> technologie, ale jejich pou\u017eit\u00ed je omezen\u00e9 kv\u016fli probl\u00e9m\u016fm, jako je vyu\u017eit\u00ed pr\u00e1\u0161ku a stabilita optick\u00e9ho syst\u00e9mu. St\u0159edov\u00e9 pod\u00e1v\u00e1n\u00ed laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> technologie tyto nedostatky \u00fa\u010dinn\u011b \u0159e\u0161\u00ed a vykazuje n\u011bkolik technick\u00fdch v\u00fdhod. D\u00edky hlubok\u00e9 integraci vysokorychlostn\u00edch laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> a pod\u00e1v\u00e1n\u00ed pr\u00e1\u0161ku do st\u0159edu, jsme p\u0159esv\u011bd\u010deni, \u017ee \u201cvysokorychlostn\u00ed laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong> + center-feed\u201d se v budoucnu stane hlavn\u00edm sm\u011brem. laserov\u00e9 opl\u00e1\u0161t\u011bn\u00ed<\/strong>, kter\u00e9 hraj\u00ed st\u00e1le d\u016fle\u017eit\u011bj\u0161\u00ed roli na trz\u00edch \u0161pi\u010dkov\u00e9 v\u00fdroby a repasov\u00e1n\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"

As laser manufacturing technology continues to evolve, laser cladding\u00a0has emerged as an advanced surface engineering technique with significant advantages in remanufacturing, surface strengthening, and component repair. Powder feeding methods play a critical role in determining the effectiveness of laser cladding, directly impacting the quality of the cladding layer and the process efficiency. The center-feed laser […]<\/p>\n","protected":false},"author":1,"featured_media":4815,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5,3],"tags":[101],"table_tags":[],"class_list":["post-4848","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-professional-knowledge","category-blog","tag-graham-luo"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.greenstone-tech.com\/cs\/wp-json\/wp\/v2\/posts\/4848","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.greenstone-tech.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.greenstone-tech.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.greenstone-tech.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.greenstone-tech.com\/cs\/wp-json\/wp\/v2\/comments?post=4848"}],"version-history":[{"count":3,"href":"https:\/\/www.greenstone-tech.com\/cs\/wp-json\/wp\/v2\/posts\/4848\/revisions"}],"predecessor-version":[{"id":5276,"href":"https:\/\/www.greenstone-tech.com\/cs\/wp-json\/wp\/v2\/posts\/4848\/revisions\/5276"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.greenstone-tech.com\/cs\/wp-json\/wp\/v2\/media\/4815"}],"wp:attachment":[{"href":"https:\/\/www.greenstone-tech.com\/cs\/wp-json\/wp\/v2\/media?parent=4848"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.greenstone-tech.com\/cs\/wp-json\/wp\/v2\/categories?post=4848"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.greenstone-tech.com\/cs\/wp-json\/wp\/v2\/tags?post=4848"},{"taxonomy":"table_tags","embeddable":true,"href":"https:\/\/www.greenstone-tech.com\/cs\/wp-json\/wp\/v2\/table_tags?post=4848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}