Feem ntau cov ntsia hlau ua ke yog tsim los ntawm cov ntsia hlau, ntxhua khaub ncaws, gaskets, txiv ntseej, thiab lwm yam. Muaj ntau yam khoom siv rau kev sib xyaw ua ke. Cov khoom siv ntawm cov ntsia hlau ua ke feem ntau muab faib ua hlau thiab stainless hlau. Hlau yog ua los ntawm cov hlau sib txawv. General sib xyaw ntsia hlau hlau yog siv 1010,1018,10B21 thiab lwm yam. 10B21 yog siv los ua 8.8 chav kawm ua ke screws. Piv txwv li, 8.8 hex socket ua ke screws feem ntau siv los ua 10B21 hlau. Tom qab ua tiav, mus rau kev kho cua sov. Tom qab kev kho cua sov, tshem tawm hydrogen thiab electroplate. Qhov no yog los tiv thaiv lub caij nplooj ntoos hlav ntxhua khaub ncaws ntawm hexagon sib dhos ntsia hlau los ntawm kev tawg. Stainless hlau ua ke screws, ua ke screws ntawm kev ua lag luam, feem ntau yog hais txog stainless hlau SUS304 ua ke screws. 201 ua ke screws feem ntau ua tsawg heev. Tsawg heev ua ke ntsia hlau manufacturers los tsim 201 ua ke screws. Vim tias qhov hardness ntawm stainless hlau 201 ntsia hlau hlau tsis zoo tswj, nws yog ib qho yooj yim los tsim cov kab nrib pleb.
Cov txheej txheem ntawm kev sib xyaw ua ke ntawm cov ntsia hlau thiab qhov zoo ntawm plating yog ntsuas los ntawm lawv cov kev tiv thaiv corrosion, ua raws li lawv cov tsos. Corrosion kuj yog ua raws li qhov chaw ua haujlwm ntawm cov khoom, teeb tsa raws li cov kev sim ntsuas, thiab ua cov kev ntsuam xyuas corrosion ntawm nws. Qhov zoo ntawm cov khoom siv electroplating yog tswj los ntawm cov hauv qab no:
1, cov tsos ntawm cov ntsia hlau ua ke: qhov saum npoo ntawm cov khoom tsis raug tso cai kom muaj txheej txheej hauv zos, hlawv, ntxhib, grey, tev, tawv nqaij thiab pom kab txaij, tsis pub muaj pinhole pitting, dub plating slag, passivation zaj duab xis xoob , tawg, ntog tawm thiab loj passivation kab. 2, composite ntsia hlau txheej thickness: lub neej ua hauj lwm ntawm fasteners nyob rau hauv corrosive cua yog proportional rau nws txheej thickness. Feem ntau pom zoo kev lag luam plating txheej thickness yog 0.00015in ~ 0.0005 in (4 ~ 12um). Kub-dip galvanizing: Qhov nruab nrab thickness ntawm tus qauv yog 54 um (lub npe txoj kab uas hla Tsawg dua los yog sib npaug rau 3/8 yog 43 um), thiab qhov tsawg kawg nkaus thickness yog 43 um (lub npe txoj kab uas hla tsawg dua los yog sib npaug rau 3/8 yog 37 um). 3, txheej txheej: siv cov txheej txheem sib txawv, cov txheej txheem ntawm cov txheej txheem sib xyaw kuj sib txawv. Thaum lub sij hawm electroplating, cov hlau coated tsis sib npaug ntawm cov npoo sab nraud, thiab cov txheej tuab yog tau txais ntawm kaum. Nyob rau hauv lub threaded ib feem ntawm lub fastener, lub thickest txheej yog nyob rau sab saum toj ntawm cov xov, maj mam thinning nyob rau sab ntawm cov xov, thiab lub thinnest deposit nyob rau hauv qab ntawm cov hniav, thaum lub kub dip galvanizing yog opposite, lub thicker txheej yog tso rau hauv lub ces kaum sab hauv thiab hauv qab ntawm cov xov, cov neeg kho tshuab plating hlau tso nyiaj yuav zoo ib yam li kub dip plating, tab sis nws yog smoother thiab lub thickness yog ntau npaum li cas nyob rau hauv lub saum npoo.
Kev sib xyaw ua ke ntawm cov ntsia hlau tsim los ntawm kev tsim khoom, nyob rau hauv ib txwm muaj, yuav tsum tau electroplated. Electroplated screws tsis tsuas yog saib zoo nyob rau hauv txoj kev no. Yuav tsis muaj roj. Thiab nws dhau qhov kev ntsuam xyuas ntsev tsuag. Cov neeg siv khoom siv ntsev tsuag lub sijhawm tuaj yeem ncav cuag. Yog li kev sib xyaw ua ke ntawm cov ntsia hlau plating, tag nrho cov xim electroplating! General electroplating muaj qhov zoo tib yam electroplating thiab ib puag ncig tiv thaiv electroplating. Cov xim electroplating feem ntau yog: dawb zinc, dub zinc, xiav zinc, xim zinc, dawb nickel, dub, dub nickel, thiab lwm yam, ib puag ncig tus phooj ywg electroplating yog ntxiv ob lo lus "kev tiv thaiv ib puag ncig" nyob rau hauv pem hauv ntej ntawm cov electroplating. Tab sis cov electroplating yog nyob rau hauv txoj kab nrog ib puag ncig yuav tsum tau. Dawb nickel ntsia hlau ntsev tsuag feem ntau yog 8-10 teev, tab sis yog tias qhov xav tau siab dua, nws tuaj yeem yog roj dhau. Cov tshuaj tsuag ntsev ntawm kev tiv thaiv ib puag ncig xim zinc feem ntau yog 48-72 teev, thiab cov tshuaj ntsev ntawm ib puag ncig tiv thaiv xiav zinc feem ntau yog 48-72 teev. Feem ntau tsis muaj tus qauv rau kev siv cov ntsia hlau ua ke thiab lub sijhawm ntsev tsuag. Nws yog txhua yam ua tiav raws li tus neeg siv khoom thov. Kub-dip galvanizing ntawm kev sib txuas ntawm cov ntsia hlau: los ntawm immersing cov pa roj carbon steel qhov chaw hauv da dej ntawm molten zinc ntawm qhov kub ntawm li 510 ° C. Qhov tshwm sim yog tias cov hlau-zinc alloy ntawm cov hlau maj mam dhau los ua cov zinc passivated. sab nrauv ntawm cov khoom. Kub dip aluminium plating yog cov txheej txheem zoo sib xws.
