Hauv kev lag luam ntim txawv teb chaws, kev xaiv cov khoom siv rau capping thiab cov tshuab hauv ob sab phlu tsis tsuas yog cuam tshuam rau kev ua haujlwm ntev thiab kev ua haujlwm ruaj khov ntawm cov cuab yeej siv nws tus kheej, tab sis kuj cuam tshuam ncaj qha rau kev nyiam huv thiab kev nyab xeeb ntawm cov txheej txheem ntim thiab kev ua raws li cov khoom kawg.Rau kev lag luam nrog cov khoom siv nruj, xws li khoom noj khoom haus, tshuaj, thiab cov khoom siv tshuaj niaj hnub yog tsim nyog rau cov khoom siv raw khoom. lub sijhawm ntev -, kev pabcuam zoo ntawm cov khoom siv rau kev hla - ciam teb xaj.
Thawj qhov kev txiav txim siab yog qhov kev tiv thaiv corrosion thiab kev nyiam huv ntawm cov khoom sib cuag. Thaum lub sijhawm ua haujlwm, cov txheej txheem sib khi thiab nias ntawm lub tshuab capping thiab hauv ob sab phlu yuav ua rau qee cov qauv ncaj qha mus cuag cov khoom siv hauv ob sab phlu thiab cov khoom ntim. Tshwj xeeb tshaj yog nyob rau hauv siab - kub nias los yog ntub ib puag ncig, yog hais tias cov khoom tsis corrosion-resistant los yog prone rau microbial loj hlob, nws yuav ua rau muaj kev phom sij zoo. Yog li ntawd, rau qhov chaw uas tuaj rau hauv kev sib cuag ncaj qha nrog cov zaub mov thiab tshuaj, nws yog advisable siv stainless hlau (xws li 304, 316L) los yog zaub mov- qib engineering plastics (xws li POM, PPSU) uas ua tau raws li thoob ntiaj teb cov qauv kev nyiam huv (xws li FDA, EU 10/2011). Cov ntaub ntawv no muaj cov kua qaub thiab alkali zoo heev thiab tiv thaiv corrosion, nrog rau qhov chaw siab kawg uas ua kom yooj yim ntxuav thiab tshuaj tua kab mob, tiv thaiv kev sib kis tau zoo thiab ua tau raws li kev nyiam huv thiab kev nyab xeeb ntawm kev lag luam xa tawm.
Thib ob, txhua yam muaj zog thiab hnav tsis kam yuav tsum tau xav txog. Cov kev taw qhia kis tau tus mob, lub zog, cov kabmob vaj tse, thiab lwm yam kev thauj khoom -cov kabmob thiab txav mus los ntawm cov khoom siv tau raug siab -frequency kev sib txhuam thiab thauj khoom nyob rau lub sijhawm ntev. Cov khoom siv tsis txaus tuaj yeem yooj yim ua rau deformation thiab nrawm hnav, yog li cuam tshuam rau kev sib raug zoo thiab cov khoom siv lifespan. Siv high-lub zog alloy steel (kho nrog tempering lossis deg hardening) los yog hnav-cov hlau cam khwb cia tuaj yeem txhim kho qhov qaug zog thiab hnav tsis kam ntawm cov khoom tseem ceeb, ua kom muaj kev ruaj khov txawm tias nyob rau hauv siab -kev ua haujlwm nrawm nrawm (piv txwv li, ntau pua daim ib feeb), txo qis sijhawm rau kev saib xyuas hauv kev xa tawm loj.
Lub caij no, qhov kub hloov pauv thiab thermal stability kuj tseem ceeb heev. Rau cov kub- xovxwm sealing tshuab, cov khoom xws li cov phaj cua sov thiab cov ntsaws ruaj ruaj yog feem ntau raug kub siab. Yog hais tias cov khoom coefficient ntawm thermal expansion tsis sib npaug los yog nws cov cua sov tsis txaus, nws tuaj yeem yooj yim ua rau qhov kub thiab txias thiab txo qhov kev sib khi. Siv cov alloys tshwj xeeb (xws li chromium-nickel alloys) los yog ceramic matrix composites nrog cov thermal conductivity thiab siab -kub tsis kam ua kom muaj cua sov hloov tau zoo thaum tiv thaiv kev deformation thiab kev laus ntawm qhov kub thiab txias, lav zoo sealing zoo thiab ua tau raws li cov kev cai nruj nruj ntawm cov khoom xa tawm.
Tsis tas li ntawd, qhov sib npaug yuav tsum raug ntaus ntawm lub teeb yuag tsim thiab tswj tus nqi thaum lub sijhawm xaiv. Thaum ua kom ntseeg tau tias kev ua tau zoo, kev xaiv tsim nyog ntawm cov khoom tsis yog -load- cov kabmob cov qauv xws li aluminium alloys thiab engineering plastics tuaj yeem txo cov khoom hnyav thiab siv zog, ua kom zoo dua qub thiab kho cov nqi, thiab txhim kho qhov yooj yim ntawm kev lag luam txawv teb chaws hauv kev xa tawm thoob plaws ntau thaj chaw.
Hauv cov ntsiab lus, kev xaiv cov khoom siv rau cov tshuab capping yuav tsum ua qhov tseem ceeb ntawm kev nyiam huv thiab kev nyab xeeb, tsom mus rau kev ua haujlwm ntawm cov tshuab, thiab xav txog kev hloov pauv ib puag ncig. Kev ntsuam xyuas dav dav, suav nrog cov qauv kev tswj hwm thiab kev tsim khoom ntawm lub hom phiaj kev lag luam, yog qhov tseem ceeb rau kev teeb tsa lub hauv paus ruaj khov rau kev ua tau zoo thiab kev ua haujlwm ntawm kev ntim khoom.
