Indlela ye-apickling kanye nenqubo yokunemba kwepayipi lensimbi engenamthungo

1. Ukunemba nekhono steel ipayipi pickling inqubo

Indlela yokukhetha ipayipi lensimbi engenamthungo enembile ikakhulukazi ihlanganisa indlela yokugeza i-asidi ekhulelwe, indlela yokuwasha i-asidi kanye nendlela yokususa ukugqwala kwe-asidi. Ngokuvamile, sisebenzisa indlela yokugeza i-asidi efakiwe, futhi indlela yesifutho ingasetshenziswa ekukhiqizeni okuningi.Izingxenye zensimbi ngokuvamile zikhetha ukugqwala. ku-10% ~ 20% (ivolumu) isisombululo se-sulfuric acid ekushiseni kwama-40 C.Lapho isixazululo sensimbi sidlula i-80g / L futhi i-sulfate ene-ferrous idlula i-215g / L, i-lotion ye-asidi kufanele ishintshwe.Emazingeni okushisa, nge-20 % ~ 80% (umthamo) wesisombululo se-hydrochloric acid sokukha insimbi, akulula ukuthi kwenzeke ukugqwala kanye ne-hydrogen brittle phenomenon.Ngenxa yomphumela omkhulu wokugqwala we-asidi ensimbi, ukugqwala kwe-corrosion inhibitor kuyengezwa.Ngemva kokuhlanza, indawo yensimbi iba mhlophe oyisiliva , futhi udlulise indawo ukuze uthuthukise ukumelana nokugqwala kwensimbi engagqwali.

Ukuze uqede ukukhangiswa kwendawo futhi wehlise umsila wokudonsa ophakeme we-chromatographic, ophethe kufanele aphathwe nge-asidi yokugeza noma ukugeza nge-alkali ngaphambi kokusetshenziswa.I-Apickling iwukucwilisa inkampani yenethiwekhi nge-6 mol/L hydrochloric acid amahora angu-2 noma i-hydrochloric acid egxilile imizuzu engu-30. , ihlungiwe, igezwe ukuze ingathathi hlangothi, futhi yomisiwe.Ukugeza nge-asidi kungasusa insimbi, i-aluminium, i-calcium, i-magnesium nokunye ukungcola etafuleni, kodwa ayikwazi ukususa iqembu le-silicone utshwala.I-pickling carrier ifanele ukuhlaziya amasampula ane-acidic.

2.Umphumela wokucosha ipayipi lensimbi engenamthungo

Susa uwoyela nokugqwala kwepayipi lensimbi engenamthungo ngokunemba ukuze ulungiselele inqubo elandelayo.Enqubweni yokukhiqiza, inqubo yokukhetha ukususa isikhumba se-oxidation esingaphezulu, ngemva kokwelashwa kokugcotshwa (i-carbon steel-phosphorus saponification, i-stainless steel-bhotela lime, ipayipi le-aluminium yethusi. -amafutha), ngenqubo endala-i-copper plating), bese ukukhishwa kanye nokucubungula okujulile.Uma ipayipi lensimbi lingakhethi, kungase kube ne-oxide namafutha ebusweni.Ukungcola, i-phosphoride liquid energy yenuzi ayikwazi ukuwasusa, ikhwalithi ye-phosphorization izoncishiswa.

I-Shandong Jute Steel Pipe Co., Ltd.
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