Lub D132 (B-83)Hardfacing RodNws yog ib qho electrode vuam uas muaj hydrogen tsawg uas tsim los rau kev vuam rov qab tseem ceeb. Tus pas vuam arc no zoo heev rau kev kho cov khoom siv uas raug puas tsuaj me ntsis thiab muaj zog compressive. Nws yog ib qho pas nrig vuam surfacing thiab kev daws teeb meem rov qab, nws tsim cov arcs ruaj khov heev, tsis muaj spatter thaum txo qis kev pheej hmoo ntawm hydrogen. Nws cov qauv ua kom ntseeg tau tias muaj kev sib xyaw ua ke thiab zoo li lub hlaws dai, ua rau nws zoo tagnrho rau kev kho cov tshuab ua haujlwm hauv kev lag luam, cov khoom siv ua liaj ua teb, thiab cov khoom siv hauv tsheb uas xav tau kev kho kom zoo thiab ua kom tawv.
Cov lus qhia txog kev ua haujlwm qhia txog tus pas nrig's cov peev xwm tshwj xeeb. Cov hlau weld uas tau tso tawm qhia txog lub zog compressive siab thiab tswj tau qhov kev siv tshuab zoo heev–tso cai rau kev ua haujlwm tom qab vuam xws li tig, milling, thiab planing yam tsis muaj kev cuam tshuam rau kev ncaj ncees. Tus cwj pwm no muaj txiaj ntsig zoo rau cov khoom siv precision uas xav tau kev kam rau siab tom qab surfacing. Faib ua lub electrode hydrogen qis, nws txo qhov porosity thiab kev tawg txias, tshwj xeeb tshaj yog nyob rau hauv cov seem tuab lossis cov pob qij txha siab. Lub kaw lus flux sib npaug muab slag detachment thiab txo qis spatter, txhim kho kev ua haujlwm zoo.
Rau cov ntawv thov uas xav tau kev tiv taus kev hnav nruab nrab, covHardfacing Rodmuaj kev ua tau zoo tshaj plaws. Cov khoom sib xyaw ua ke tsim cov txheej txheem tawv, ua haujlwm-tawv uas zoo tiv thaiv kev hnav abrasive hauv cov chaw xws li kev tuav cov khoom loj, kev tsiv av, lossis kev tsim khoom. Tsis zoo li lwm txoj hauv kev brittle, D132 (B-83)'Cov khoom tso rau hauv cov khoom no nqus tau lub zog cuam tshuam thaum tseem tswj tau qhov tawv ntawm qhov chaw, ua rau lub neej ua haujlwm ntawm cov khoom siv ntev dua. Nws yog qhov tsim nyog rau kev tsim kho dua tshiab cov ncej, cov menyuam, cov khoom siv crusher, thiab cov hniav lag luam uas raug kev sib txhuam thiab kev nyuaj siab tas li.
Cov txiaj ntsig zoo tshaj plaws yuav tsum tau ua raws li cov kev ntsuas vuam: Ua kom cov khoom kub txog 250-300°C (482-572°F) raws li qhov hnyav, tswj qhov kub thiab txias ntawm qhov sib tshuam, thiab siv DC reverse polarity (electrode positive). Khaws cov pas nrig rau hauv cov thawv kaw ntawm 250-300°F (121-149)°C) thiab rov ci dua yog tias raug rau qhov av noo ntau tshaj 50% rau ntau tshaj 4 teev. Tso cov hlaws dai rau hauv qhov nqaim, stringer hla kom tswj tau dilution thiab ua kom qhov nyuaj tshaj plaws. Tom qab vuam, txias qeeb qeeb hauv qab rwb thaiv tsev yog qhov pom zoo rau cov ntawv thov tseem ceeb kom tiv thaiv hydrogen embrittlement.
Lub D132 (B-83)Hardfacing Rodmuab ib qho kev daws teeb meem txhim khu kev qha, siv tau rau kev tiv thaiv kev hnav thiab rov qab kho qhov loj. Nws cov khoom siv hydrogen qis, ua ke nrog lub zog compressive siab thiab tswj kev tiv thaiv kev hnav, ua rau lub pas nrig vuam no tsis tseem ceeb rau kev saib xyuas thiab rov tsim kho dua tshiab thoob plaws cov lag luam hnyav. Los ntawm kev xaiv lub electrode no, cov engineers xyuas kom meej tias cov khoom kho dua tshiab rov qab tau qhov ua haujlwm qub thaum ua tiav lub neej ua haujlwm ntev dua nyob rau hauv cov xwm txheej nyuaj.
Lub sijhawm tshaj tawm: Lub Yim Hli-12-2025