Nkag siab Corrosion: Tus yeeb ncuab ntawm Ordinary Screws
Corrosion yog ib qho txheej txheem ntuj tsim, qhov twg hlau deteriorates vim muaj tshuaj lom neeg cov tshuaj tiv thaiv nrog lub ntuj ntsiab nyob rau hauv ib puag ncig. Cov tsoos hlau thiab carbon steel screws tshwj xeeb tshaj yog raug rau xeb thaum raug ya raws thiab oxygen. Sij hawm dhau mus, qhov no tuaj yeem ua rau poob ntawm kev ncaj ncees hauv cov fasteners, uas tsis yog qhov teeb meem zoo nkauj xwb tab sis kuj tuaj yeem cuam tshuam cov qauv kev ruaj ntseg ntawm tag nrho cov phiaj xwm.
Txhawm rau tiv thaiv koj cov phiaj xwm los ntawm kev puas tsuaj ntawm xeb, nws yog ib qho tseem ceeb uas yuav tau xaiv cov ntsia hlau tsim los ntawm cov khoom siv uas muaj peev xwm tiv taus corrosion. Nov yog qee qhov uas koj tuaj yeem siv:
Stainless Hlau Screws
Lub stalwarts ntawm xeb kuj, stainless hlau screws yog qhov kev xaiv mus rau tej yaam num uas corrosion yuav muaj kev txhawj xeeb. Cov hlau uas siv hauv cov hlau tsis muaj steel muaj qhov tsawg kawg nkaus ntawm 10.5% chromium, uas ua rau cov pa oxygen los tsim cov txheej tiv thaiv ntawm chromium oxide ntawm cov hlau. Cov txheej no ua raws li kev thaiv, tiv thaiv cov pa oxygen thiab noo noo los ntawm kev ncav cuag cov hlau hauv qab thiab yog li tiv thaiv xeb. Qhov no kuj ua rau lawv resistant rau staining, ua rau lawv haum rau ob qho tib si sab hauv tsev thiab sab nraum zoov daim ntaub ntawv uas zoo nkaus li thiab ntev lub neej tseem ceeb.
| Peb muab ntau yam ntawm stainless hlau screws, nrog rau peb nrov A2 Stainless Steel Pozidrive Countersunk Wood Screws. Cov ntsia hlau no tsis yog tsuas yog tiv taus corrosion tab sis kuj khav theeb tus kheej-centring tsim uas ua kom muaj kev tswj xyuas kom raug. Qhov no tshwj xeeb tshaj yog muaj txiaj ntsig zoo thaum ua haujlwm ntawm cov haujlwm loj, vim nws txo cov neeg ua haujlwm qaug zog thiab tso cai rau kev ua haujlwm zoo ib yam nrog kev rov ua dua torquing. |
Galvanized Screws
Galvanized screws yog lwm qhov hnyav hnyav hauv kev sib ntaus sib tua tiv thaiv corrosion. Cov ntsia hlau no yog coated nrog ib txheej ntawm zinc los ntawm cov txheej txheem hu ua kub-dip galvanisation, qhov twg cov ntsia hlau yog submerged hauv molten zinc los tiv thaiv cov hlau hauv qab los ntawm xeb. Qhov zoo ntawm galvanized screws ua rau lawv zoo meej rau kev siv nyob rau hauv ib puag ncig raug huab cua, xws li sab nraum zoov decking, laj kab, thiab ru tsev. Lawv muaj peev xwm tiv taus cov xwm txheej hnyav yam tsis muaj qhov tsis muaj zog ua rau lawv muaj txiaj ntsig zoo thiab kev xaiv zoo rau cov haujlwm uas yuav tsum tau ua kom ntev.
Brass Screws
Paub txog lawv cov xim golden, tooj dag screws yog ntau dua li lub ntsej muag zoo nkauj. Qhov no alloy ntawm tooj liab thiab zinc muaj zoo heev corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj dej. Txawm hais tias lawv yog softer dua hlau thiab tej zaum yuav tsis haum rau load-bearing daim ntaub ntawv, tooj dag screws yog zoo meej rau cov hniav tej yaam num los yog qhov twg hluav taws xob conductivity yuav tsum tau.
Silicon Bronze Screws
Cov ntsia hlau no yog ib qho hlau ntawm tooj liab, silicon, thiab lwm yam khoom, muab kev tiv thaiv zoo rau corrosion, tshwj xeeb tshaj yog nyob rau hauv marine ib puag ncig. Lawv feem ntau kim dua tooj dag tab sis muaj zog dua. Silicon bronze screws feem ntau yog siv hauv lub nkoj lub tsev, qhov uas raug dej yog ib qho kev sib tw tas li.
Aluminium Screws
Lub teeb tsis tau muaj zog, aluminium screws tiv thaiv corrosion los ntawm kev tsim cov txheej tiv thaiv oxide nyias. Cov ntsia hlau no zoo tagnrho rau cov haujlwm uas qhov hnyav yog qhov kev txhawj xeeb thiab ua haujlwm zoo hauv ib puag ncig uas muaj kev pheej hmoo ntawm galvanic corrosion thaum ua ke nrog lwm hom hlau.
Zinc thiab ZYP Screws
Zinc-plated screws, suav nrog cov zinc thiab daj passivate (ZYP) tiav, paub txog lawv cov khoom tiv thaiv corrosion thiab zoo nkauj ntau yam. Los ntawm electroplating, cov ntsia hlau no yog coated nrog ib txheej nyias ntawm zinc, uas ua hauj lwm raws li ib tug tiv thaiv kev tiv thaiv ntawm ya raws thiab oxygen. Cov txheej txheem no ua kom cov screws zoo dua los tiv thaiv ib puag ncig cov teeb meem yam tsis muaj kev cuam tshuam lawv cov tsos. Lub txheej yog tus du, muab ib tug huv si, ntau polished saib rau tej yaam num uas lub finish yog tseem ceeb raws li muaj nuj nqi.
Qhov sib ntxiv ntawm cov txheej daj passivate hauv ZYP screws txhim kho qhov kev tiv thaiv ntxiv los ntawm kev ntxiv qhov cuam tshuam thib ob, zoo tagnrho rau thaum yuav tsum tau ua kom muaj zog ntxiv. Qhov kev tiv thaiv ob txheej no ua rau ZYP screws yog qhov kev xaiv zoo tshaj plaws rau ob qho tib si sab hauv tsev thiab sab nraum zoov daim ntaub ntawv uas tej zaum yuav xav tau ntau dua. Txawm hais tias zinc plating muaj qhov ci, huv si, daj passivate muab ZYP screws qhov txawv yellowish tint, ua rau lawv yooj yim txheeb xyuas.
Xaiv Txoj Cai Screw
Kev xaiv cov ntsia hlau uas tsim nyog rau xeb yuav tsum tau txiav txim siab txog qhov chaw uas cov ntsia hlau yuav raug siv, cov ntaub ntawv raug fastened, thiab cov kev xav zoo nkauj ntawm qhov project. Nov yog qee yam uas yuav tsum xav txog:
Ib puag ncig: cov ntsia hlau puas yuav raug ya raws, tshuaj lom neeg, lossis dej ntsev? Xaiv cov khoom uas tuaj yeem tiv taus cov xwm txheej no. Piv txwv li stainless hlau screws yog ntau yam rau ob qho tib si ib puag ncig, muab ob qho tib si lub zog thiab corrosion kuj. Rau tej yaam num sab nraum zoov, tshwj xeeb tshaj yog nyob rau hauv ntug hiav txwv dej, silicon bronze tej zaum yuav yog qhov zoo dua kev xaiv vim nws txhim khu kev tiv thaiv rau ntsev dej corrosion.
Load: hnyav npaum li cas los yog kev ntxhov siab yuav tsum tau txhawb nqa screws? Xyuas kom cov khoom siv thiab tsim tsim nyog rau cov khoom thauj uas lawv yuav nqa.
Aesthetics: cov ntsia hlau puas yuav pom? Yog tias muaj, xav txog cov xim thiab ua tiav ntawm cov ntsia hlau. Brass screws muab cov khoom zoo nkauj kov, ua rau lawv haum rau txee thiab rooj tog.
Compatibility: xyuas kom tseeb tias cov ntsia hlau sib haum nrog cov ntaub ntawv uas lawv yuav fastening kom tsis txhob galvanic corrosion, uas tuaj yeem tshwm sim thaum cov hlau tsis sib xws. Aluminium screws yog qhov zoo tagnrho rau fastening aluminium Cheebtsam, txo qhov kev pheej hmoo no.