Kub-dip galvanizing tau tsim nyob rau hauv nruab nrab ntawm lub xyoo pua 18th. Nws tau tsim los ntawm kub-dip galvanizing thiab muaj keeb kwm ntawm ntau tshaj 300 xyoo. Txog niaj hnub no, kub-dip galvanizing tseem yog cov txheej txheem ntau tshaj plaws thiab muaj txiaj ntsig zoo ntawm cov txheej txheem steel anticorrosion. Cov kav dej galvanized steel yug los hauv cov thev naus laus zis no tau ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv hluav taws, kev tiv thaiv ib puag ncig, dej, hluav taws xob, thiab cov qauv hlau.
Qhov zoo ntawm galvanizing muaj qhov cuam tshuam loj rau kev ua haujlwm thiab tus nqi ntawm cov kav dej kub-dip galvanized steel kav. Yog hais tias lub kub-dip galvanized steel yeeb nkab muaj tsis txaus galvanizing thickness, tsis sib npaug galvanized txheej, tsis txaus zinc adhesion, thiab to ntawm plating, nws yuav ua rau corrosion ntawm cov yeeb nkab steel, txo lub cev thiab tshuaj zog ntawm cov yeeb nkab steel, shorten lub neej. cov yeeb nkab steel, thiab txawm ua rau muaj kev nyab xeeb.
Qhov zoo ntawm galvanizing muaj kev sib raug zoo nrog cov txheej txheem kub-dip galvanizing: lub purity ntawm zinc ingot, kev kho saum npoo ntawm cov yeeb nkab steel, qhov kub ntawm zinc da dej, lub sij hawm ntawm kub dip, tom qab plating kev kho mob, thiab lwm yam yuav cuam tshuam rau qhov zoo ntawm galvanizing. Cov ntsuas rau kev txiav txim siab zoo ntawm galvanizing feem ntau suav nrog:
1. Cov tsos ntawm galvanized yeeb nkab fittings
Qhov saum npoo ntawm cov yeeb nkab zoo galvanized yuav tsum muaj cov txheej txheem tiav, cov xim zoo ib yam, kev hloov pauv tsis zoo, thiab tsis muaj sag, dripping, lossis tsis tsim nyog agglomeration ntawm qhov chaw. Yuav tsum tsis muaj qhov tsis xws luag xws li plating ploj lossis raug hlau rau ntawm qhov chaw ntawm cov yeeb nkab fittings.
2. Lub thickness ntawm galvanized txheej
Lub thickness ntawm zinc txheej ntawm cov yeeb nkab galvanized yog ib qho tseem ceeb qhia rau kev txiav txim qhov zoo ntawm galvanization. Nws yog feem ntau qhia nyob rau hauv chav tsev ntawm μm, thiab nws kuj yuav qhia tau los ntawm qhov hnyav ntawm galvanized txheej ib square meter (g / m2). Cov mis hloov pauv yog: 1g / m2=0.14μm. Txij li zinc thiab hlau muaj cov khoom sib nqus sib txawv thiab cov polarizabilities, cov tuab ntawm zinc txheej tuaj yeem ntsuas tsis muaj kev puas tsuaj nrog galvanized txheej thickness ntsuas. Txhawm rau txiav txim siab qhov hnyav ntawm zinc txheej, nws yog ib qho tsim nyog yuav tsum tau txhuam cov zinc txheej los ua qauv thiab ntsuas nws nrog antimony chloride txoj kev thiab lwm txoj kev tshuaj.
Peb, galvanized txheej uniformity
Cov txheej txheem zoo galvanized muaj cov kev ntxhib los mos thiab tsis muaj dej los yog kev puas tsuaj tom qab plating. Cov yeeb nkab galvanized tuaj yeem muab tso rau hauv ib qho tshwj xeeb ntawm cov tshuaj tooj liab sulfate rau qee lub sijhawm thiab sijhawm. Yog tias tsis muaj cov khoom leaching liab (metallic tooj liab) ntawm qhov chaw, nws tuaj yeem suav tias yog galvanized. Cov yeeb nkab fittings tsis muaj qhov tsis zoo ntawm plating ploj thiab kev puas tsuaj tom qab plating.
Plaub, qhov adhesion ntawm galvanized txheej
Lub adhesion ntawm galvanized txheej yog ib qho kev ntsuas ntawm firmness ntawm galvanized txheej thiab cov yeeb nkab steel. Tom qab cov yeeb nkab steel yog immersed nyob rau hauv zinc da dej rau ib lub sij hawm ntawm lub sij hawm, lub nto ntawm cov yeeb nkab steel yuav hnov mob nrog cov galvanizing kua los tsim ib tug zinc-hlau sib tov txheej. Cov txheej txheem scientific thiab sophisticated galvanizing yuav tsim ib tug zinc-hlau sib tov txheej ntawm txaus thickness los txhim kho cov adhesion ntawm zinc txheej. Lub adhesion ntawm galvanized txheej tuaj yeem saib xyuas los ntawm tapping nrog rauj roj hmab. Nws yog qhov zoo dua tias cov txheej tsis poob tawm tom qab qee tus naj npawb ntawm cov kais dej.
Tam sim no, kev nkag siab hauv tsev ntawm galvanizing zoo ntawm galvanized steel kav muaj qee yam kev xav tsis ncaj ncees lawm, thiab ib qho tseem ceeb ntawm cov xim ci ntawm galvanized nto. Raws li tau hais ua ntej, qhov zoo ntawm galvanizing muaj feem xyuam rau ntau yam. Yuav kom ua tiav cov xim ci ntsa iab, nws yog ib qho tsim nyog los txo qhov kub ntawm zinc da dej thiab ua kom ntev lub sij hawm da dej. Qhov no yuav txo qhov adhesion ntawm galvanized txheej. Txawm hais tias nws yog qhov zoo nkauj, tab sis los ntawm kev xav ntawm kev tiv thaiv corrosion thiab practicality, qhov txo ntawm adhesion yuav ua rau cov txheej galvanized tau yooj yim puas, uas tsis tsim nyog rau kev poob. Tuam Tshoj' tus qauv kub-dip galvanizing tsuas yog hais tias cov xim ntawm cov txheej galvanized zoo ib yam. Rau kev zoo nkauj, xim ntawm galvanized steel yeeb nkab yuav tsum tau ci. Tsis muaj lub hauv paus theoretical, thiab nws tsis yog kev tshawb fawb lossis kev lag luam.
