1. Thaum yuav cov xim galvanized -coated steel coils, koj tuaj yeem txiav txim siab pib li cas yog tias lawv yog cov khoom tiag tiag raws li cov khoom ntim sab nrauv thiab cov ntawv lo?
Ua ntej, soj ntsuam cov ntawv ntim khoom; qhov no yog cov kauj ruam intuitive tshaj plaws. Cov khoom lag luam tiag tiag, tshwj xeeb tshaj yog cov los ntawm cov khoom zoo -cov npe nrov xws li Baosteel, feem ntau yog siv cov ntaub ntawv zoo, cov ntawv ntim zoo. Sab hauv txoj kab uas hla ntawm lub kauj yog vertically upward, ruaj los ntawm ib tug ntoo ncej nyob rau hauv qab, nrog ib tug me me qhov sib txawv ntawm lub kauj thiab tus ncej, feem ntau tsis ntau tshaj 5 millimeters. Hloov pauv, ntau yam khoom cuav lossis me me -cov khoom lag luam feem ntau siv cov ntim yooj yim, kab rov tav.
Qhov thib ob, ua tib zoo xyuas cov ntaub ntawv sau npe. Cov khoom tiag tiag yuav muaj peb daim ntawv lo: ib daim ntawv lo sab nraud, daim ntawv sab hauv, thiab daim ntawv sib sib zog nqus. Cov ntaub ntawv ntawm cov ntawv no, xws li tus lej coil, tus lej ntawm lub tshuab hluav taws xob, thiab qhov hnyav ntawm lub cev, yuav tsum sib haum, thiab cov ntawv lawv tus kheej yuav tsum meej thiab tsis muaj cov cim qhia ntawm tearing. Cov khoom lag luam tsis zoo feem ntau muaj qhov muag plooj, hloov tsis tiav, lossis cov ntawv tsis sib haum.
Thib ob: Cov ntaub ntawv, tiv thaiv- cov lej cuav, thiab tus nqi kuj yog qhov tseem ceeb. Yuav ua li cas raws nraim cov no yuav raug txheeb xyuas?
Kev txheeb xyuas cov ntaub ntawv thiab kev tiv thaiv - cov lej cuav yog ib kauj ruam tseem ceeb hauv cov txheej txheem pov thawj. Ua ntej, ib txwm thov daim ntawv pov thawj khoom zoo (daim ntawv pov thawj). Rau cov hom xws li Baosteel, lawv daim ntawv pov thawj lav feem ntau muaj QR code tshwj xeeb. Koj tuaj yeem luam theej tus lej nrog koj lub xov tooj ntawm tes los xyuas nws qhov tseeb. Lub kaw lus yuav sau lub sijhawm thiab qhov chaw ntawm cov lus nug thiab teeb meem kev ceeb toom rau txhua qhov tsis txaus ntseeg. Tsis tas li ntawd, tus cim thib tsib ntawm daim ntawv pov thawj hluav taws xob raug cai yuav tsum yog lub peev "O". Tsis tas li ntawd, cov hlau coils tiag tiag feem ntau muaj laser- cov lej luam tawm ntawm sab nraub qaum, qhia meej meej lub npe, tus lej xov tooj, xim xim, thiab lwm yam ntaub ntawv. Cov khoom tiag los ntawm cov tuam txhab loj xws li Baosteel thiab Maanshan Iron & Steel feem ntau muaj lub Hoobkas nqi tsis pub tsawg tshaj 3 yuan ib 'meter'; Yog tias tus nqi qis dua qhov nruab nrab ntawm kev ua lag luam (xws li, tsawg dua 3 yuan ib meter), nws yog ib qho khoom siv tsis zoo uas ua los ntawm cov hlau siv los yog lwm yam khoom tsis zoo.
3. Puas yog qhov zoo sib txawv ntawm cov khoom zoo thiab cov khoom tsis zoo tuaj yeem ua qhov txawv ntawm lawv lub cev?
kiag li. Muaj ntau cov lus qhia tuaj yeem pom los ntawm kev soj ntsuam cov ntsiab lus. Saib ntawm tus ntoo khaub lig-section ntawm lub substrate, tiag substrates muaj zoo, ntom crystals thiab ib tug ci xim hlau luster; thaum cov substrates tsis zoo muaj greyish, tsaus nti -section, thiab tej zaum yuav muaj impurities. Tom ntej no, xyuas cov npoo ntawm cov hlau phaj. Cov npoo tiag tiag yuav tsum du thiab tsis muaj burrs, thaum cov npoo tsis zoo yog qhov ua rau jaggedness lossis puas. Nyob rau hauv cov nqe lus ntawm cov xim, cov txheej txheem ntawm cov khoom tiag yog zoo ib yam thiab zoo ib yam, tsis muaj xim txawv ntawm batches; thaum cov khoom lag luam tsis zoo feem ntau pom muaj xim txawv, tsis nco qab qhov chaw, lossis cov pob ntawm cov nplaum.
4. Coatings thiab platings yog "sab tshos" thiab "skeleton" ntawm cov xim-coated coils. Cov yam ntxwv tshwj xeeb dab tsi lawv muaj thaum txiav txim siab zoo?
Cov khoom lag luam tsis zoo yuav muaj qhov tsis xws luag hauv lawv cov txheej txheem, xws li npuas thiab nodules, lossis lawv cov xim primer yuav txawv txav. Piv txwv li, cov xim primer ntawm cov khoom Baosteel tiag tiag feem ntau yog daj -ntsuab, thaum cov khoom cuav feem ntau yog dawb. Hais txog txheej txheej adhesion, koj tuaj yeem ua qhov yooj yim "100-square test": siv cov riam siv hluav taws xob los kos 100 qhov sib nrug me me squares ntawm txheej, tom qab ntawd sai sai tev tawm daim kab xev. Yog tias cov coatings tiag tiag tev tawm tsawg dua los yog tsis tag nrho, qhov tsis sib xws, cov khoom tsis zoo yuav tev tawm hauv thaj chaw loj. Cov khoom tsis zoo kuj muaj "shoddy workmanship" nyob rau hauv lawv cov substrate thiab plating: ntawm ib sab, lub thickness ntawm substrate yuav tsis tau raws li tus txheej txheem thov; qhov no tuaj yeem paub qhov txawv los ntawm tapping nws-cov khoom tiag tiag tsim lub suab nrov, thaum cov khoom tsis zoo, vim lawv cov khoom ntxeem tau, tsim lub suab dull. Ntawm qhov tod tes, cov tuab thiab qhov hnyav ntawm cov txheej galvanized kuj tseem tsis txaus, uas yuav ncaj qha ua rau cov hlau phaj txiav cov npoo tsis tshua muaj rusting yav tom ntej.
5. Dab tsi yog lub ntsiab lus ntawm cov tsis yog - xim tiag -coated steel coils ntawm lub khw? Dab tsi yuav tsum tau xav txog ua ntej kev yuav khoom?
Feem ntau, tag nrho cov xim -coated steel nplooj ntawv uas tsis ua raws li tus thawj chaw tsim khoom lossis cov qauv kev cog lus zoo raug xa mus rau cov khoom tsis yog- cov khoom tiag. Nyob ntawm qhov hnyav, cov khoom tsis yog- cov khoom tiag tuaj yeem faib ua cov khoom tsis zoo (xws li cov khoom lag luam tau cog lus), cov khoom tsis raug cai, thiab thawj cov khoom lag luam qib siab tshaj - qib. Nws yog ib qho tseem ceeb kom paub meej tias tsis yog txhua yam tsis yog - cov khoom cuav yog cuav. Qee cov khoom lag luam ua tiav me ntsis, thaum lwm tus yog cov khoom cuav thiab cov khoom tsis zoo uas nws qhov kev ua tau zoo tsis tuaj yeem lav tag nrho. Ua ntej kev yuav khoom, xyuas kom koj nkag siab txog koj cov kev yuav khoom thiab sim yuav los ntawm cov tuam txhab lag luam nrog cov chaw tsim khoom tsim nyog tsim nyog. Yog tias ua tau, nws raug nquahu kom ua rau -kev tshuaj xyuas qhov chaw ntawm lub Hoobkas qhov ntsuas thiab ib puag ncig, lossis saib xyuas cov neeg muab khoom tseem ceeb uas muab kev kuaj thib peb thiab tom qab- kev muag khoom cog lus kom txo qis kev pheej hmoo.