Kub dip galvanizing yog txheej txheem kev kho saum npoo uas suav nrog rau qhov chaw kho mob ua ntej rau hauv zinc da dej rau kev kub siab metallurgical cov tshuaj tiv thaiv los tsim cov zinc txheej Peb kauj ruam ntawm kub dip galvanizing yog raws li hauv qab no:
① Qhov saum npoo ntawm cov khoom yog yaj los ntawm zinc kua, thiab cov hlau raws li qhov saum npoo yog yaj los ntawm zinc kua los ua zinc hlau alloy theem.
② Cov zinc ions nyob rau hauv cov hlau alloy txuas ntxiv diffuse ntawm lub matrix los tsim zinc hlau kev sib nrig sib tov txheej; Hlau tsim cov zinc hlau alloy thaum lub sij hawm dissolution ntawm zinc tov thiab txuas ntxiv mus rau qhov chaw nyob ib ncig ntawm lub nto ntawm zinc hlau alloy txheej yog qhwv nrog ib tug zinc txheej, uas cools thiab crystallizes nyob rau hauv chav tsev kub los tsim ib txheej. Tam sim no, cov txheej txheem kub dip galvanizing rau bolts tau dhau los ua zoo meej thiab ruaj khov, thiab txheej txheej thickness thiab corrosion kuj tuaj yeem ua tau raws li qhov xav tau los tiv thaiv corrosion ntawm ntau yam khoom siv kho tshuab. Txawm li cas los xij, tseem muaj cov teeb meem hauv qab no hauv kev tsim khoom tiag tiag thiab kev teeb tsa lub tshuab ua haujlwm:
1. Muaj ib qho me me ntawm zinc residue ntawm lub bolt xov, uas cuam tshuam rau kev teeb tsa,
2. Kev cuam tshuam ntawm kev sib txuas lub zog feem ntau yog ua tiav los ntawm kev loj hlob ntawm machining nyiaj ntawm cov txiv ntoo thiab tapping rov qab tom qab plating los xyuas kom meej qhov haum ntawm kub-dip galvanized txiv ntoo thiab ntsia liaj qhov rooj. Txawm hais tias qhov no ua kom qhov haum ntawm lub fastener, kev ntsuas kev ua tau zoo ntawm cov khoom siv feem ntau tshwm sim thaum lub sij hawm tensile txheej txheem, uas cuam tshuam rau kev sib txuas lub zog tom qab kev teeb tsa.
3. Qhov cuam tshuam rau cov khoom siv hluav taws xob muaj zog ntawm cov bolts muaj zog: Cov txheej txheem kub-dip galvanizing tsis zoo tuaj yeem cuam tshuam qhov cuam tshuam ntawm bolts, thiab cov kua qaub ntxuav thaum lub sij hawm galvanizing tuaj yeem ua rau cov ntsiab lus hydrogen hauv matrix ntawm 10.9 qib high-strength bolts. , nce lub peev xwm rau hydrogen embrittlement. Kev tshawb fawb tau pom tias cov khoom siv kho tshuab ntawm cov xov xov ntawm cov bolts muaj zog (qib 8.8 thiab siab dua) tom qab kub-dip galvanizing muaj qee qhov kev puas tsuaj.
Mechanical galvanizing yog txheej txheem uas siv lub cev, tshuaj lom neeg adsorption deposition, thiab kev sib tsoo tshuab los tsim ib txheej ntawm cov hmoov hlau rau ntawm qhov chaw ntawm lub workpiece ntawm chav tsev kub thiab siab. Los ntawm kev siv txoj kev no, cov hlau txheej xws li Zn, Al, Cu, Zn-Al, Zn-Ti, thiab Zn-Sn tuaj yeem tsim los ntawm cov hlau, muab kev tiv thaiv zoo rau cov hlau hlau substrate. Cov txheej txheem galvanizing nws tus kheej txiav txim siab tias txheej txheej thickness ntawm threads thiab grooves yog thinner dua li ntawm tiaj tus. Tom qab plating, txiv ntseej tsis xav tau rov qab tapping, thiab bolts saum M12 tsis tas yuav tsum tau cia siab rau. Tom qab plating, nws tsis cuam tshuam qhov haum thiab txhua yam khoom. Txawm li cas los xij, qhov loj me ntawm zinc hmoov siv rau hauv cov txheej txheem, kev siv cov khoom siv thaum lub sij hawm plating, thiab lub sijhawm pub mis ncaj qha cuam tshuam rau qhov ntom, flatness, thiab cov tsos ntawm txheej, yog li cuam tshuam rau qhov zoo ntawm txheej.
Post lub sij hawm: Dec-12-2023
