Stainless hlau vuam taw tes yuav ua li cas nrog

Cov txheej txheem ntawm kev kho deg ntawm stainless hlau tom qab vuam yog polishing thiab passivation.

Ua ntej, nto polishing

Qhov saum npoo ntawm stainless hlau welders, xws li nicks, dents, ntxhib me ntsis thiab stains, yuav ceev corrosion nyob rau hauv nruab nrab. Yog hais tias stainless hlau nto polished, nws tuaj yeem txhim kho nws cov corrosion kuj, qhov zoo dua qhov roughness, qhov zoo dua qhov corrosion kuj. Vim hais tias qhov saum npoo ntawm cov vuam nrog zoo roughness tuaj yeem tsim cov txheej tuab thiab cov oxide zaj duab xis, uas tuaj yeem tiv thaiv cov hlau sab hauv los ntawm oxidation thiab corrosion.

Ob, kev kho mob passivation

Passivation yog tus txheej txheem ntawm manually tsim ib tug oxide zaj duab xis nyob rau saum npoo ntawm stainless hlau kom nws corrosion kuj. Cov txheej txheem passivation yog raws li nram no:

Weldment nto tu thiab kho → pickling → ntxuav thiab neutralization → passivation → ntxuav thiab ziab.

Ua ntej kev kho mob, ntxuav thiab kho qhov chaw ntawm lub vuam, kho qhov chaw puas, txhuam nws nrog lub tes tuav sib tsoo lub log, thiab thaum kawg ntxuav cov txheej txheem plhaub ntawm lub vuam thiab cov spatter ze nws.

Lub hom phiaj ntawm pickling yog tshem tawm cov tawv nqaij oxide. Vim tias qhov kub ua hauj lwm stainless hlau (xws li kub nias lub taub hau) thiab vuam tshav kub cuam tshuam cheeb tsam yuav tsim ib txheej ntawm oxide daim tawv nqaij, cuam tshuam nws corrosion kuj. Muaj ob txoj hauv kev ntawm acid pickling: kua qaub kua qaub thiab kua qaub kua qaub pickling.

Pickling acid formula: qhov loj feem ntawm nitric acid (density 1.42g / cm3) yog 20 feem pua, hydrofluoric acid 5 feem pua, tus so yog dej, pickling kub yog chav tsev kub.

Kev tsim cov kua qaub nplaum: hydrochloric acid 50 feem pua ​​​​ntawm cov dej 50 feem pua.

Acid paste formula: hydrochloric acid (density 1.19g/cm3) 20mL, dej 100mL, nitric acid (density 1.42g/cm3) 30Ml, 150g bentonite.

Txoj kev dip yog tsim rau cov khoom siv me me thiab qhov chaw. Rau dipping, raus cov khoom siv thiab cov khoom siv hauv cov kua qaub ntxuav rau 25-45min, tshem tawm thiab yaug nrog dej huv. Scrubbing txoj kev yog tsim rau cov khoom loj. Txhuam dipped nyob rau hauv cov tshuaj pleev ib ce thiab txhuam kom txog thaum xim dawb thiab ci, ces yaug nrog dej.

Passivation yog nqa tawm tom qab pickling. Passivation tov mis: 5mL nitric acid, 1g poov tshuaj dichromate, 95mL dej. Qhov kev kho mob kub yog chav sov thiab lub sijhawm kho yog 1h. Txoj kev kho mob yog los so cov tshuaj passivation rau ntawm qhov chaw ntawm lub vuam ib zaug, khaws cia rau 1 teev, tom qab ntawd yaug nrog dej txias, txhuam nws kom zoo nrog daim ntaub, thiab thaum kawg yaug nrog dej kub, thiab tshuab ziab khaub ncaws.

Yog tias koj muaj lus nug, thov hu rau peb. Peb lub tuam txhab tuaj yeem tsim ntau yam koob txhaj tshuaj, koob tshuaj kho mob, koob txhaj tshuaj, koob tshuaj hypodermic, koob txhaj tshuaj, koob tshuaj tiv thaiv kab mob, koob txhaj tshuaj, koob txhaj tshuaj, koob txhaj tshuaj, koob xaum koob, koob ovum khaws koob, koob txhaj tshuaj, thiab lwm yam Yog tias koj xav tau kev kho koob cov khoom, thov hu rau peb. Peb tos ntsoov rau koj qhov kev nug! Qhov zoo ntawm cov khoom tsim nyob rau hauv peb lub Hoobkas yuav txaus siab rau koj!

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