Kev daws teeb meem ntawm cov hmoov txheej txheej kub dip galvanizing

1. Kev kho tsis tiav:

• Polyester hmoov txheej hmoov yog thermosetting resins uas hla txuas mus rau lawv daim ntawv organic kawg los ntawm kev khaws cia ntawm qhov kub (feem ntau 180 o C), li ntawm 10 feeb. Curing qhov cub yog tsim los muab lub sijhawm no ntawm qhov kub thiab txias ua ke. Nrog cov khoom kub dip galvanized, nrog rau lawv cov ntu hnyav dua, nws yog ib qho tsim nyog los xyuas kom meej tias lub sij hawm stoving txaus tau tso cai kom ua tau raws li cov lus qhia kho. Ua ntej cua sov ntawm kev ua hauj lwm hnyav yuav pab kom ceev cov txheej txheem kho hauv qhov cub curing.

2. Tsis zoo adhesion:

• Cov theem kawg hauv cov txheej txheem kub dip galvanizing muaj cov dej quenching ntawm kev ua haujlwm, feem ntau hauv cov tshuaj sodium dichromate tsis muaj zog. Cov txheej txheem no ua kom txias ua haujlwm kom nws tuaj yeem ua haujlwm thiab ua kom lub ntsej muag ntawm cov galvanized txheej los tiv thaiv oxidation thaum ntxov ntawm qhov chaw. Lub xub ntiag ntawm ib zaj duab xis passivating nyob rau saum npoo ntawm galvanized txheej yuav cuam tshuam nrog zinc phosphate lossis hlau phosphate pretreatment, thiab ntau zaus, ua rau cov kev kho mob ua ntej no tsis zoo. Nws yog ib qho tseem ceeb uas cov khoom kub dip galvanized tsis quenched tom qab galvanizing. Qhov no ua kom ntseeg tau tias zinc nto yog nyob rau hauv lub xeev reactive heev kom txais pretreatment thov nyob rau hauv cov txheej txheem hmoov txheej.

3. Kev txiav txim siab:

• Pinholing yog tshwm sim los ntawm kev tsim cov npuas me me hauv cov txheej polyester thaum lub sij hawm stoving / curing voj voog. Cov npuas no tsim cov craters me me rau ntawm qhov chaw thiab tsis pom kev.Qhov laj thawj tseem ceeb rau tus pin holing zoo li yog tias cov discrete polyester resin hais nyob rau hauv kev sib cuag nrog galvanized steel nto tsis fuse tib lub sij hawm raws li cov nyob rau saum npoo ntawm polyester hmoov. zaj duab xis, vim hais tias ntawm qhov loj ntawm cov hlau galvanized, thiab lub sij hawm coj mus rau fusion kub.
• Tshwj xeeb formulated resins nrog 'degassing' cov neeg ua haujlwm tau tsim los daws qhov teeb meem no los ntawm kev ncua qhov pib ntawm fusion ntawm hmoov. Ua ntej cua sov ua haujlwm hauv qhov cub ua ntej cua sov ua ntej siv cov hmoov tso cai hnyav dua kub dip galvanized seem kom cov hmoov coated thiab daws cov teeb meem ntawm tus pin holing thaum siv nrog 'degassing' qib ntawm polyester hmoov txheej.