Kev xav tau rau cov kav hlau galvanized

1. Hom thiab tshuaj muaj pes tsawg leeg
Qib thiab tshuaj muaj pes tsawg leeg ntawm cov hlau siv rau cov kav hlau galvanized yuav tsum ua raws li qib thiab tshuaj muaj pes tsawg leeg ntawm cov hlau siv rau cov kav dej dub tau teev tseg hauv GB / T3091.
2. Txoj kev tsim khoom
Cov txheej txheem ntawm kev tsim cov clarinet (lub qhov cub vuam lossis hluav taws xob vuam) yog xaiv los ntawm cov chaw tsim khoom. Galvanizing txais cov txheej txheem kub dip galvanizing.
3. Cov xov thiab cov yeeb nkab txuas
(a) Rau galvanized steel kav xa nrog threads, cov xov yuav tsum tau machined tom qab galvanizing. Cov xov yuav tsum ua raws li YB 822.
(b) Cov yeeb nkab steel yuav tsum ua raws li cov kev cai ntawm YB 238; malleable hlau yeeb nkab pob qij txha yuav tsum ua raws li cov kev cai ntawm YB 230.
4. Cov khoom siv kho tshuab Cov khoom siv ntawm cov kav hlau steel ua ntej galvanizing yuav tsum ua raws li cov kev cai ntawm GB 3091.
5. Uniformity ntawm galvanized txheej Galvanized steel kav yuav tsum tau kuaj rau uniformity ntawm galvanized txheej. Cov yeeb nkab steel qauv yuav tsum tsis txhob tig liab (tooj liab xim) thaum muab tso rau hauv tooj liab sulfate tov rau 5 zaug sib law liag.
6. Kev ntsuas txias txias: galvanized steel kav nrog lub nominal txoj kab uas hla tsis loj tshaj 50 hli yuav tsum raug rau kev ntsuas txias dabtsi yog khoov. Lub kaum sab xis yog 90 degree, thiab lub vojvoog khoov yog 8 npaug ntawm txoj kab uas hla. Tsis muaj qhov muab tub lim thaum lub sijhawm kuaj, thiab vuam seam ntawm cov qauv yuav tsum muab tso rau sab nraud lossis sab sauv ntawm txoj kev khoov. Tom qab qhov kev sim, yuav tsum tsis muaj kab nrib pleb lossis cov cim ntawm zinc txheej tev tawm ntawm cov qauv.
7. Hydraulic siab test Lub hydraulic siab yuav tsum tau nqa tawm ntawm cov yeeb nkab dub, thiab eddy tam sim no flaw detection kuj yuav siv tau es tsis txhob ntawm hydraulic siab test. Qhov loj ntawm qhov kev ntsuas siab los yog eddy tam sim no qhov tsis txaus ntseeg qhov kev sib piv piv txwv yuav tsum ua raws li cov kev cai ntawm GB 3092. Cov khoom siv ntawm cov hlau yog cov cim tseem ceeb los xyuas kom meej qhov kev ua tau zoo kawg (cov khoom siv kho tshuab) ntawm cov hlau.