Q1: Dab tsi yog qhov teeb meem tseem ceeb tshaj plaws los xav txog thaum xaiv rivets?
Qhov teeb meem tseem ceeb tshaj plaws yog electrochemical corrosion.
Thaum ob lub hlau sib txawv tuaj rau hauv qhov chaw ntub dej, micro- roj teeb cov ntaub ntawv, ua rau cov hlau reactive ntau corrode. Lub substrate ntawm pre-painted steel nplooj ntawv feem ntau yog steel los yog galvanized steel. Yog tias siv tooj liab rivets tsis raug, qhov sib txawv loj ntawm tooj liab thiab hlau yuav ua kom nrawm nrawm ntawm cov ntawv hlau. Yog li ntawd, xaiv cov rivets uas muaj peev xwm nyob ze ntawm lub pre-painted steel ntawv substrate yog lub hauv paus ntsiab lus.
Q2: Dab tsi yog qhov zoo thiab qhov tsis zoo ntawm rivets ua los ntawm cov khoom sib txawv, xws li stainless hlau, aluminium, thiab galvanized steel? Kuv yuav tsum xaiv qhov twg?
Qhov no yog lo lus nug tseem ceeb tshaj plaws. Cov lus pom zoo rau kev xaiv cov rivets rau ua ntej -painted steel nplooj ntawv yog: aluminium → coated steel → stainless hlau. Hauv qab no yog kev sib piv ntawm peb yam khoom siv rivet:
Khoom siv|Txoj Cai Tiv Thaiv Corrosion|Compatibility nrog Pre-painted Steel Sheets (Zinc/Steel Substrate)|Lub ntsiab zoo|Lub ntsiab tsis zoo
Aluminium|Relies on its dense oxide film, performs excellently in atmospheric environments.|Qhov kev xaiv zoo tshaj plaws.|Muaj peev xwm zoo ib yam li zinc / hlau, tsis tshua muaj kev pheej hmoo ntawm electrochemical corrosion, kev lag luam- qauv pom zoo.|Lub teeb, ruaj, zoo compatibility.|Lub zog tsis muaj zog qis dua hlau, tsis haum rau qhov chaw siab heev.
Zincized hlau|Kev tiv thaiv kev txi.|Zinc txheej ua raws li cov anolyte, nyiam corroding thiab tiv thaiv cov hlau substrate; feem ntau siv los tiv thaiv- txoj kev corrosion rau steel.|Zoo.|Zoo ib yam li cov khoom siv substrate ntawm pre-painted steel ntawv, zoo heev electrochemical compatibility.|Kub-dip galvanizing yog qhov nyiam, nws cov tshuaj tsuag ntsev yog qhov zoo tshaj rau electro-galvanizing.
Q3: Dab tsi ntawm txoj kab uas hla thiab ntev ntawm rivets kuv yuav tsum xaiv?
Qhov kev xaiv ntawm cov lus qhia tshwj xeeb yog nyob ntawm tag nrho cov tuab ntawm cov khoom txuas nrog.
Txoj kab uas hla: Feem ntau rivet diameters rau xim hlau ntawv muaj xws li 4.0mm, 4.8mm, 5.0mm, thiab 6.4mm. Qhov ntau dua qhov tuab thiab siab dua qhov yuav tsum tau muaj zog, qhov loj ntawm txoj kab uas hla yuav tsum yog. Feem ntau, nws raug pom zoo tias 4.8mm lossis 5.0mm rivets txaus rau cov ntawv xim hlau.
Length: Lub rivet ntev yuav tsum ntau dua li tag nrho cov tuab ntawm cov khoom txuas nrog. Ib tug tswv yim xam cov mis yog:
Rivet ntev (L) ≈ Tag nrho cov tuab ntawm qhov txuas (T) + 1.5 * Rivet txoj kab uas hla (D)
Q4: Dab tsi yog cov ntsiab lus tseem ceeb thiab kev ceev faj thaum siv?
Precise Drilling: Xyuas kom lub qhov taub yog sib npaug ntawm txoj kab uas hla rivet; kev sib txawv ntau dhau yuav txo qis kev sib txuas.
Qhov sib npaug ntawm qhov sib npaug: xyuas kom lub qhov ntawm cov ntawv txuas txuas tau raug ua kom raug.
Kev khiav hauj lwm txheej txheem: Siv rab phom rivet uas phim cov rivet specification kom tawg lub rivet core hauv ib mus. Kev ua haujlwm tsis raug tuaj yeem yooj yim ua rau loosening lossis rivet taub hau tawg.
Ntxuav cov khib nyiab hlau: Tom qab riveting, cov khib nyiab hlau xws li rivet shanks tuaj yeem xeb thiab ua rau cov xim pleev xim puas. Nco ntsoov ntxuav kom huv si tom qab hnub ua haujlwm tiav.
Q5: Yuav ua li cas tiv thaiv xeb ntawm cov ntsiab lus rivet thiab xyuas kom muaj kev sib txuas ntev - kav ntev thiab txhim khu kev qha?
Txhawm rau kom muaj kev sib txuas ntev - kav ntev thiab txhim khu kev qha, dua li xaiv cov rivets zoo, cov kev ntsuas hauv qab no tuaj yeem ua:
Tom qab- kev txhim kho sealing: Npog tag nrho cov rivet taub hau thiab seams nrog nruab nrab- kho silicone lossis polyurethane sealant kom cais tawm ntawm huab cua thiab noo noo, txhim kho kev ua haujlwm ntev.
Siv cov tshuaj tiv thaiv- xeb xim rau kev txiav: Raws li tau hais dhau los, kev siv zinc-nplua nuj primer rau txhua qhov chaw drilled thiab txiav yog ib kauj ruam tseem ceeb hauv kev ua haujlwm ntev.
Kev tshuaj xyuas thiab kev saib xyuas tsis tu ncua: Tshawb xyuas cov xim -coated steel ntawv hauv ob lub lis piam tom qab kev teeb tsa kom tshem tawm cov xeb. Tom qab ntawd, ua cov kev tshuaj ntsuam xyuas txhua xyoo los daws cov teeb meem tam sim ntawd.