DELUN yog lub Hoobkas tshwj xeeb hauv kev txiav disc, sib tsoo disc, pob zeb diamond hniav, nrov plig plawg disc thiab hlau txhuam, nrog 36 xyoo ntawm kev lag luam kev lag luam. Hlau txhuam yog ib qho cuab yeej siv los ntxuav thiab tshem tawm xeb, xim, thiab lwm yam khoom siv los ntawm qhov chaw. Lawv tuaj hauv cov duab sib txawv thiab ntau thiab tsawg kom haum rau cov ntawv sib txawv thiab feem ntau siv hauv kev ua haujlwm ntoo, hlau ua haujlwm, thiab kev lag luam tsheb. Txawm hais tias cov txhuam hniav yog qhov zoo rau ntau daim ntawv thov, lawv muaj qee qhov tsis zoo uas yuav tsum tau xav txog.
Ib qho tsis zoo ntawm cov hlau txhuam yog tias lawv tuaj yeem ua rau puas tsuaj rau qhov chaw raug ntxuav. Piv txwv li, txhuam hlau tuaj yeem khawb thiab khawb cov ntaub ntawv zoo li ntoo lossis cov hlau mos xws li txhuas. Qhov no tuaj yeem ua rau muaj kev puas tsuaj tsis zoo uas yuav xav tau kev kho ntxiv lossis kho dua tshiab. Tsis tas li ntawd, txhuam hlau tuaj yeem ua rau khawb tob uas yuav ua rau muaj kev ntxhov siab, uas tuaj yeem ua rau muaj kev ua haujlwm tsis zoo hauv qee yam khoom xws li plastics lossis composites.
Lwm qhov tsis zoo ntawm cov hlau txhuam yog tias lawv tuaj yeem tsim cov cua sov thaum siv, uas tuaj yeem ua rau warping lossis distortion ntawm cov khoom ua haujlwm. Qhov no yog qhov tseeb tshwj xeeb tshaj yog thaum siv cov txhuam hniav ntawm cov khoom siv hlau nyias uas ua kom sov sai sai los ntawm kev sib txhuam ntawm txhuam. Tsis tas li ntawd, txhuam hlau tuaj yeem tsim cov nplaim taws thaum siv rau qee yam khoom xws li hlau, uas tuaj yeem ua rau muaj hluav taws kub nyhiab hauv qee qhov chaw ua haujlwm.
Hlau txhuam kuj tuaj yeem tsim cov khib nyiab ya txaus ntshai. Thaum siv, cov khoom me me ntawm cov hlau thiab lwm yam khoom tuaj yeem tawg tawm thiab ua rau huab cua, ua rau muaj kev pheej hmoo ntawm qhov muag lossis tawv nqaij raug mob rau tus neeg siv. Txhawm rau txo qhov kev pheej hmoo no, nws yog ib qho tseem ceeb uas yuav tsum tau hnav cov khoom tiv thaiv tus kheej tsim nyog xws li tsom iav, hnab looj tes, thiab daim npog ntsej muag thaum siv txhuam txhuam.
Tej zaum qhov tsis zoo tshaj plaws ntawm cov txhuam hniav yog lawv lub peev xwm ua rau muaj teeb meem ua pa. Thaum txhuam hlau siv rau ntawm tej yam khoom xws li txhuas, asbestos, lossis lwm yam tshuaj lom, lawv tuaj yeem tsim cov khoom cua uas nqus tau. Qhov no tuaj yeem ua rau muaj teeb meem ua pa hnyav, nrog rau lub ntsws puas, mob qog noj ntshav, thiab lwm yam mob. Txhawm rau txo qhov kev pheej hmoo ntawm cov teeb meem ua pa, nws yog ib qho tseem ceeb uas yuav tsum siv lub tshuab ua pa kom zoo thiab lub tshuab ua pa thaum ua haujlwm nrog cov txhuam hlau.
Txawm hais tias cov kev tsis zoo no, cov txhuam hlau tseem yog cov cuab yeej tseem ceeb rau ntau daim ntawv thov. Lawv yog cov pheej yig, muaj dav, thiab muaj txiaj ntsig ntawm kev tshem tawm cov khoom tawv tawv ntawm qhov chaw. Nrog kev saib xyuas kom zoo thiab ua tib zoo saib xyuas kev nyab xeeb, cov txhuam hlau tuaj yeem siv tau zoo thiab ua haujlwm zoo yam tsis muaj teeb meem rau tus neeg siv lossis cov khoom siv ua haujlwm.
Hauv kev xaus, thaum txhuam hlau yog ib qho cuab yeej zoo rau kev tu thiab tshem tawm cov ntaub ntawv los ntawm qhov chaw, lawv muaj qee qhov tsis zoo uas yuav tsum tau xav txog. Lawv tuaj yeem ua rau muaj kev puas tsuaj rau cov khoom siv ua haujlwm, ua kom muaj cua sov thiab cov pa taws, tsim cov khib nyiab ya ya, thiab ua rau muaj teeb meem ua pa. Los ntawm kev siv cov cuab yeej kev nyab xeeb tsim nyog, qhov cua, thiab cov kev coj ua zoo tshaj plaws, cov teeb meem no tuaj yeem txo qis thiab cov txhuam hlau tuaj yeem siv tau zoo thiab siv tau zoo.
