Hardness yog ib qho ntawm feem ntau siv indexes hauv txhua yam khoom ntawm cov ntaub ntawv hlau.Ib txoj kev sim ceev thiab pheej yig rau kev sim hardness yog qhia hauv lub Hoobkas xaim.Tab sis rau qhov nyuaj ntawm cov ntaub ntawv hlau, tsis muaj kev sib koom ua ke thiab cov ntsiab lus meej nrog rau txhua txoj hauv kev sim hauv tsev thiab txawv teb chaws.Feem ntau hais lus, qhov nyuaj ntawm cov hlau feem ntau xav tias yog cov khoom siv rau cov yas deformation, khawb, hnav, lossis txiav.
Nyob rau hauv kev hloov ntawm dipping nrug ntawm qhov lojgalvanized hlau, ua kom tus thawj ceev tsis hloov, thiab txiav txim lub sij hawm dipping (1) raws li T = KD, qhov twg: T yog qhov tas li ntawm lub sij hawm dipping, noj 4-7d yog txoj kab uas hla ntawm steel hlau mm, thiab ces kwv yees lub dipping nyob deb.Los ntawm kev kho cov zinc dipping nrug, zinc dipping lub sij hawm ntawm steel hlau ntawm ntau yam specifications yog luv luv los ntawm 5s ntawm qhov nruab nrab tshaj qhov ua ntej hloov.Nyob rau hauv txoj kev no, zinc noj yog txo, thiab zinc noj ib tuj ntawm steel hlau yog txo los ntawm 61kg mus rau 59.4kg.
Kub dip galvanizing yog nyob rau hauv cov cua kub ntawm molten zinc dip plating, ntau lawm ceev, txheej tuab tab sis tsis sib xws, lub thickness ntawm lub lag luam tso cai rau 45 microns, mus txog 300 microns los yog ntau tshaj.Cov xim yog tsaus, kev noj cov zinc hlau, thiab cov hlau matrix los tsim cov txheej txheem infiltration, corrosion kuj zoo, kub galvanized sab nraum zoov ib puag ncig tuaj yeem tswj tau ntau xyoo.Muaj ob lub hauv paus ntsiab lus rau kev tiv thaiv zinc txheej ntawm hlau matrix: ntawm ib sab, txawm hais tias zinc muaj zog dua thiab yooj yim rau oxidize dua hlau, nws cov oxide zaj duab xis tsis yog xoob li hlau oxide thiab kuj yog ntom.Qhov tsim ntawm cov txheej txheem tuab oxide rau saum npoo av inhibits ntxiv oxidation ntawm zinc sab hauv.
Tshwj xeeb tshaj yog tom qab passivation ntawm galvanized txheej, nto oxide txheej yog ntau ntom, nws tus kheej muaj siab oxidation kuj.Ntawm qhov tod tes, thaum txheej txheej zinc txheej raug puas tsuaj, nthuav tawm cov hlau sab hauv matrix, vim zinc muaj zog ntau dua li hlau, zinc yuav ris lub luag haujlwm ntawm kev txi zinc anode, zinc yuav oxidize ua ntej hlau, yog li tiv thaiv cov hlau txheej. los ntawm kev puas tsuaj.
Post lub sij hawm: 27-07-21