33.Dab tsi yog qhov zoo thiab qhov tsis zoo ntawm cov yeeb nkab steel pickling hauv hydrochloric acid?

Qhov zoo: 1) Lub pickling ceev yog ceev; 2) Qhov corrosion ntawm lub hauv paus hlau ntawm cov yeeb nkab steel yog tsawg, yog li txuag steel noj; 3) Lub diffusion ntawm hydrogen mus rau hauv lub hauv paus hlau ntawm cov yeeb nkab steel yog tsawg, lub zog ntawm pickling npuas thiab mechanical zog ntawm cov yeeb nkab steel yog tsawg.
4) Qhov saum npoo ntawm cov yeeb nkab steel yog huv si tom qab pickling; 5) Cov hlau ntsev adhered rau saum npoo ntawm cov yeeb nkab steel yog yooj yim los ntxuav; 6) Pickling tuaj yeem nqa tawm ntawm chav tsev kub lossis kub qis, uas txhim kho cov xwm txheej ib puag ncig rau qee yam.
Disadvantages: 1) Tus nqi siab ntawm pickling; 2) Cov tshuaj khib nyiab pov tseg yog qhov nyuaj rau rov ua dua tshiab; 3) Cov pa phem hydrogen chloride tawm thaum lub sij hawm pickling; 4) Thaum lub pickling kua concentration txo, qhov kub nce tsis tuaj yeem tuav lub peev xwm pickling, ua rau muaj kua qaub ntau; 5) Hydrochloric acid yuav tsum tau muab cia rau hauv cov plooj (porcelain) lossis iav ntim, ua rau kev cia thiab kev thauj mus los tsis yooj yim.