1. Los tiv thaiv xeb thiab txoj kev los tiv thaiv xeb
Txhua tus tswv cuab cov cuab yeej ntawm steel ntauwd qauv (tshwj tsis yog lub pob tw thauj tog rau nkoj) yuav tsum ua kom zoo nrog kev kho xeb. Txoj kev kub dip galvanizing txoj kev yuav tsum raug lees paub. Corrosion tsis kam ntawm 30 xyoo yog qhov yuav tsum tau.
2. Lub thickness ntawm kev tiv thaiv xeb thiab anti-xeb txheej yuav tsum ua kom tau raws li cov hauv qab no:
(1) yog tias cov tivthaiv tuab yog ntau dua lossis sib npaug li 5 hli, cov tuab ntawm galvanized txheej yuav tsum tsis pub tsawg tshaj 86 cm;
(2) yog tias cov tuab tivthaiv qhov tsawg dua 5 hli, cov tuab ntawm galvanized txheej yuav tsum tsis pub tsawg dua 65 hli.
3. Lwm yam xav tau
Qhov saum npoo ntawm galvanized txheej ntawm cov tivthaiv yuav tsum du thiab cov tswv yim, tsis muaj burr, overgrowth thiab ntau dhau caking raug tso cai nyob rau hauv qhov sib koom tes, thiab tsis muaj kua qaub pickling, hlau lwg thiab lwm yam tsis zoo yog tso cai. Galvanized zinc txheej yuav tsum zoo ib yam, thiab nrog lub hauv paus hlau khov kho ua ke, tom qab hammering tsis tev tawm, tsis muaj su.
4. Los tiv thaiv xeb thiab tiv thaiv xeb uas yuav tsum tau ua lub hauv paus pob zeb thiab lub hauv paus
Ua ntej cov hlau ntauwd qauv tau teeb tsa, kev tiv thaiv xeb yuav tsum tau ua thiab muaj kev tiv thaiv kom zoo kom tiv thaiv bolt corrosion thiab kev puas tsuaj. Qhov sib txawv nruab nrab ntawm lub hauv paus phaj (flange) ntawm steel ntauwd kem thiab lub hauv paus yuav tsum tau muab coj los ua ke nrog cov pob zeb zoo zoo tom qab kev teeb tsa ntawm lub tuam tsev loj steel. Tom qab qhov debugging thiab kuaj, ntauwd hneev taw thiab thauj tog rau nkoj ntawm tus pej thuam taw yuav tsum tau muab ntim nrog cov qib muaj zog ua vaj tse thiab qhov tuab ntawm kev tiv thaiv txheej yuav tsum tsis pub tsawg dua 50 hli
