{"id":2378,"date":"2021-06-16T07:51:09","date_gmt":"2021-06-16T06:51:09","guid":{"rendered":"https:\/\/www.lkr.si\/heat-treatment\/"},"modified":"2021-10-13T06:20:36","modified_gmt":"2021-10-13T05:20:36","slug":"toplotna-obdelava","status":"publish","type":"page","link":"https:\/\/www.lkr.si\/sl\/toplotna-obdelava\/","title":{"rendered":"Toplotna obdelava"},"content":{"rendered":"<section id=\"bt_bb_section69f9e65aa5e11\"  data-background_image_src=\"'https:\/\/www.lkr.si\/wp-content\/uploads\/2021\/08\/tehnologija-litja.jpg'\" class=\"bt_bb_section bt_bb_top_spacing_extra_large bt_bb_bottom_spacing_large bt_bb_color_scheme_11 bt_bb_layout_boxed_1200 bt_bb_vertical_align_top btLazyLoadBackground bt_bb_background_image bt_bb_background_overlay_dark_solid bt-dark-skin\" style=\"background-image:url(&#039;https:\/\/www.lkr.si\/wp-content\/plugins\/bold-page-builder\/img\/blank.gif&#039;);\"><div class=\"bt_bb_port\"><div class=\"bt_bb_cell\"><div class=\"bt_bb_cell_inner\"><div class=\"bt_bb_row_wrapper\"><div  class=\"bt_bb_row\" ><div  class=\"bt_bb_column col-xl-6 bt_bb_vertical_align_top bt_bb_align_left bt_bb_padding_normal bt_bb_animation_fade_in bt_bb_animation_zoom_out animate\"  data-width=\"6\" data-bt-override-class=\"{}\"><div class=\"bt_bb_column_content\"><div class=\"bt_bb_column_content_inner\"><header class=\"bt_bb_headline bt_bb_dash_top bt_bb_size_extralarge bt_bb_superheadline bt_bb_align_inherit\"><h1><span class=\"bt_bb_headline_superheadline\"><span>Storitve<\/span><\/span><span class=\"bt_bb_headline_content\"><span>Toplotna obdelava<span class=\"bt_bb_outline_text bt_bb_outline_text_align_left bt_bb_outline_text_size_300\"><span>Heat treatment<\/span><\/span><\/span><\/span><\/h1><\/header><div class=\"bt_bb_separator bt_bb_border_style_none bt_bb_bottom_spacing_60\" data-bt-override-class=\"null\"><\/div><\/div><\/div><\/div><div  class=\"bt_bb_column col-xl-6 bt_bb_vertical_align_top bt_bb_align_right bt_bb_padding_40 bt_bb_animation_fade_in bt_bb_animation_zoom_out animate\"  data-width=\"6\" data-bt-override-class=\"{}\"><div class=\"bt_bb_column_content\"><div class=\"bt_bb_column_content_inner\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section><section id=\"bt_bb_section69f9e65aa62d5\"  class=\"bt_bb_section bt_bb_top_spacing_100 bt_bb_layout_wide bt_bb_vertical_align_top\" style=\"z-index: 1;\"><div class=\"bt_bb_port\"><div class=\"bt_bb_cell\"><div class=\"bt_bb_cell_inner\"><div class=\"bt_bb_row_wrapper bt_bb_row_push_left bt_bb_content_wide bt_bb_row_width_boxed_1200\"><div  class=\"bt_bb_row bt_bb_column_gap_30\" ><div  class=\"bt_bb_column col-xl-5 bt_bb_vertical_align_top bt_bb_align_left bt_bb_padding_normal bt_bb_animation_fade_in animate\" style=\"position: relative;\" data-width=\"5\" data-bt-override-class=\"{&quot;bt_bb_align_&quot;:{&quot;current_class&quot;:&quot;bt_bb_align_left&quot;,&quot;xl&quot;:&quot;left&quot;}}\"><div class=\"bt_bb_column_content\"><div class=\"bt_bb_column_content_inner\"><div class=\"bt_bb_image bt_bb_shape_square bt_bb_align_inherit bt_bb_hover_style_simple bt_bb_content_display_always bt_bb_content_align_bottom bt_bb_remove_padding_40 bt_bb_fill_background_color_match_content_height bt_bb_content_exists\" style=\"max-width: 650px; float: right;\"><span><img src = \"https:\/\/www.lkr.si\/wp-content\/plugins\/bold-page-builder\/img\/blank.gif\" data-full_image_src=\"https:\/\/www.lkr.si\/wp-content\/uploads\/2021\/10\/Roka.jpg\" data-image_src=\"https:\/\/www.lkr.si\/wp-content\/uploads\/2021\/10\/Roka-1280x1208.jpg\" title=\"Roka\" alt=\"https:\/\/www.lkr.si\/wp-content\/uploads\/2021\/10\/Roka-1280x1208.jpg\" class=\"btLazyLoadImage\"><\/span><div class=\"bt_bb_image_content\" style=\"--bgcolor: rgba(255,125,12,0.51);background-color: rgba(255,125,12,0.51);\"><div class=\"bt_bb_image_content_flex\"><div class=\"bt_bb_image_content_inner\"><div  class=\"bt_bb_text\" style=\"color: #FFF;\"><p>Po kaljenju sledi popu\u0161\u010danje, ko jeklo ali litino segrejemo pod temperaturo avstenitizacije in ga dr\u017eimo na ustrezni temperaturi dolo\u010den \u010das. Bistven namen popu\u0161\u010danja je, da jeklu ali litini zni\u017eamo trdoto in hkrati pove\u010damo \u017eilavost.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"bt_bb_floating_element bt_bb_floating_element_horizontal_position_right bt_bb_floating_element_vertical_position_top bt_bb_floating_element_animation_delay_default bt_bb_floating_element_animation_duration_default bt_bb_floating_element_animation_style_ease_out\" style=\"margin-right: -1em; margin-top: -3em; mix-blend-mode: multiply;\" data-speed=\"0\"><div class=\"bt_bb_floating_element_html\" data-speed=\"0\"><span  style=\"width: 5em; height: 5em; box-shadow: 0 0 0 4px #F1F1F1 inset;\"><\/span><\/div><\/div><div class=\"bt_bb_separator bt_bb_border_style_none bt_bb_bottom_spacing_60 bt_bb_hidden_md bt_bb_hidden_lg\" data-bt-override-class=\"null\"><\/div><\/div><\/div><\/div><div  class=\"bt_bb_column col-xl-7 bt_bb_vertical_align_middle bt_bb_align_left bt_bb_padding_normal bt_bb_animation_fade_in animate\"  data-width=\"7\" data-bt-override-class=\"{}\"><div class=\"bt_bb_column_content\"><div class=\"bt_bb_column_content_inner\"><div  class=\"bt_bb_row_inner\" ><div  class=\"bt_bb_column_inner col-xl-6 bt_bb_align_left bt_bb_vertical_align_top\"  data-width=\"6\" data-bt-override-class=\"{}\"><div class=\"bt_bb_column_inner_content\"><header class=\"bt_bb_headline bt_bb_font_weight_600 bt_bb_dash_none bt_bb_size_normal bt_bb_align_inherit\"><h4><span class=\"bt_bb_headline_content\"><span>Toplotno obdelani produkti<\/span><\/span><\/h4><\/header><div class=\"bt_bb_separator bt_bb_border_style_none bt_bb_bottom_spacing_20\" data-bt-override-class=\"null\"><\/div><div  class=\"bt_bb_text\" ><p>\u017darjenje imenujemo toplotno obdelavo jekla ali litine, ko z ustrezno hitrostjo material segrejemo in nato dr\u017eimo na primerni temperaturi v avstenitno obmo\u010dje. Z ustreznim ohlajanjem po dr\u017eanju na temperaturi pa \u017eelimo dose\u010di \u010dim bolj ravnote\u017eno stanje mikrostrukture. Namen \u017earjenja je izbolj\u0161ati dimenzijsko obstojnost, obdelovalnost, predelavo, dose\u010di mehanske lastnosti in zni\u017eati trdoto.<\/p>\n<p>Kaljenje je vrsta toplotne obdelave, kjer jeklo segrejemo v obmo\u010dje avstenita, temu sledi ustrezno hitro ohlajanje v razli\u010dnih kalilnih sredstvih. Najbolj uporabna so voda, olje, solna kopel in zrak. S tem pove\u010damo trdoto, pri tem pa jeklo ali litina postaneta bolj krhka in manj \u017eilava. Med povr\u0161ino in notranjostjo izdelka nastanejo temperaturne razlike, ki se ve\u010dajo z vi\u0161jo ohlajevalno hitrostjo. Te razlike lahko privedejo do krivljenja materiala ali pa celo do razpok, zato je pomembno, da dolo\u010denemu jeklu ali litini zagotovimo ustrezno kalilno sredstvo.<\/p>\n<\/div><div class=\"bt_bb_separator bt_bb_border_style_none bt_bb_bottom_spacing_20 bt_bb_hidden_md bt_bb_hidden_lg\" data-bt-override-class=\"null\"><\/div><\/div><\/div><div  class=\"bt_bb_column_inner col-xl-6 bt_bb_align_left bt_bb_vertical_align_top bt_bb_padding_normal\" style=\"position: relative;\" data-width=\"6\" data-bt-override-class=\"{}\"><div class=\"bt_bb_column_inner_content\"><header class=\"bt_bb_headline bt_bb_font_weight_600 bt_bb_dash_none bt_bb_size_normal bt_bb_align_inherit\"><\/header><div class=\"bt_bb_separator bt_bb_border_style_none bt_bb_bottom_spacing_20\" data-bt-override-class=\"null\"><\/div><div  class=\"bt_bb_text\" ><p>Po litju se talina strdi v kalupih in tako preide iz teko\u010dine v trdno stanje, mikrostruktura pa se imenuje ulita. Tak\u0161na mikrostruktura je ve\u010dinoma neprimerna za kon\u010dno uporabo dolo\u010denega izdelka, zato moramo narediti toplotno obdelavo, kar pomeni, da je jeklo spet v pe\u010di in obdelano pri visokih temperaturah.<\/p>\n<p>\u010cas dr\u017eanja, temperatura in na\u010din hlajenja oziroma hitrost hlajenja so odvisni od kakovosti jekla in zahtevanih mehanskih lastnosti. Na splo\u0161no poznamo tri osnovne metode toplotne obdelave, druge vrste toplotne obdelave se uporabljajo za posebne namene. Osnovni na\u010dini zdravljenja so naslednji v kronolo\u0161kem vrstnem redu:<\/p>\n<\/div><div class=\"bt_bb_separator bt_bb_border_style_none bt_bb_bottom_spacing_30\" data-bt-override-class=\"null\"><\/div><div class=\"bt_bb_icon btFooterAccentIcon bt_bb_style_borderless bt_bb_size_small bt_bb_shape_circle bt_bb_target_self bt_bb_align_inherit\" data-bt-override-class=\"{&quot;bt_bb_size_&quot;:{&quot;current_class&quot;:&quot;bt_bb_size_small&quot;,&quot;xl&quot;:&quot;small&quot;},&quot;bt_bb_align_&quot;:{&quot;current_class&quot;:&quot;bt_bb_align_inherit&quot;,&quot;xl&quot;:&quot;inherit&quot;}}\"><span  data-ico-fontawesome5regular=\"&#xf058;\" class=\"bt_bb_icon_holder\"><span>\u017darjenje <\/span><\/span><\/div><div class=\"bt_bb_separator bt_bb_border_style_none bt_bb_bottom_spacing_10\" data-bt-override-class=\"null\"><\/div><div class=\"bt_bb_icon btFooterAccentIcon bt_bb_style_borderless bt_bb_size_small bt_bb_shape_circle bt_bb_target_self bt_bb_align_inherit\" data-bt-override-class=\"{&quot;bt_bb_size_&quot;:{&quot;current_class&quot;:&quot;bt_bb_size_small&quot;,&quot;xl&quot;:&quot;small&quot;},&quot;bt_bb_align_&quot;:{&quot;current_class&quot;:&quot;bt_bb_align_inherit&quot;,&quot;xl&quot;:&quot;inherit&quot;}}\"><span  data-ico-fontawesome5regular=\"&#xf058;\" class=\"bt_bb_icon_holder\"><span>Kaljenje <\/span><\/span><\/div><div class=\"bt_bb_separator bt_bb_border_style_none bt_bb_bottom_spacing_10\" data-bt-override-class=\"null\"><\/div><div class=\"bt_bb_icon btFooterAccentIcon bt_bb_style_borderless bt_bb_size_small bt_bb_shape_circle bt_bb_target_self bt_bb_align_inherit\" data-bt-override-class=\"{&quot;bt_bb_size_&quot;:{&quot;current_class&quot;:&quot;bt_bb_size_small&quot;,&quot;xl&quot;:&quot;small&quot;},&quot;bt_bb_align_&quot;:{&quot;current_class&quot;:&quot;bt_bb_align_inherit&quot;,&quot;xl&quot;:&quot;inherit&quot;}}\"><span  data-ico-fontawesome5regular=\"&#xf058;\" class=\"bt_bb_icon_holder\"><span>Popu\u0161\u010danje<\/span><\/span><\/div><div class=\"bt_bb_separator bt_bb_border_style_none bt_bb_bottom_spacing_50\" data-bt-override-class=\"null\"><\/div><div class=\"bt_bb_button bt_bb_color_scheme_6 bt_bb_icon_position_left bt_bb_style_filled bt_bb_size_normal bt_bb_width_inline bt_bb_shape_inherit bt_bb_target_self bt_bb_align_inherit\" style=\"; --primary-color:#ffffff; --secondary-color:#ff7700;\" data-bt-override-class=\"{&quot;bt_bb_size_&quot;:{&quot;current_class&quot;:&quot;bt_bb_size_normal&quot;,&quot;xl&quot;:&quot;normal&quot;},&quot;bt_bb_align_&quot;:{&quot;current_class&quot;:&quot;bt_bb_align_inherit&quot;,&quot;xl&quot;:&quot;inherit&quot;}}\"><a href=\"https:\/\/www.lkr.si\/sl\/o-nas\/kontakt\/#contact\" target=\"_self\" class=\"bt_bb_link\" title=\"Kontakt\"><span class=\"bt_bb_button_text\" >Kontakt<\/span><\/a><\/div><div class=\"bt_bb_separator bt_bb_border_style_none bt_bb_bottom_spacing_10\" data-bt-override-class=\"null\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"bt_bb_row_wrapper\"><div  class=\"bt_bb_row\" ><div  class=\"bt_bb_column col-xl-12 col-xs-12 col-sm-12 col-md-12 col-lg-12 bt_bb_vertical_align_top bt_bb_align_left bt_bb_padding_normal\"  data-width=\"12\" data-bt-override-class=\"{}\"><div class=\"bt_bb_column_content\"><div class=\"bt_bb_column_content_inner\"><div class=\"bt_bb_separator bt_bb_border_style_none bt_bb_bottom_spacing_40\" data-bt-override-class=\"null\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"content-type":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.0 - 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