kye ki ? Ekyuma ekitali kizimbulukuse mu mmere
Ekyuma ekitali kizimbulukuse eky'emmere kikwatagana n'ekintu kya 'people's Republic of China National Standard GB9684' ekyuma ekitali kizimbulukuse. Ebirimu chromium ya lead bitono nnyo okusinga eby’ekyuma kya bulijjo eky’amabala .
Ebiraga nti: Ekyuma ekitali kizimbulukuse mu mmere kitegeeza ekitundu ekikwatagana n’ebyuma by’emmere eby’emmere, era emmere erina okutuukiriza ebisaanyizo ebimu eby’obukuumi. Kubanga okukozesa enkola nnyingi ez’okukola asidi w’emmere , chromium stainless steel , unqualified stainless steel , ejja kusaanuuka emiwendo egy’enjawulo egya chromium , obutwa;n’ebyetaago okukomya ebirimu mu lead, cadmium n’ebintu ebirala eby’obucaafu eby’ekika kya alloy.
Enjawulo wakati w’ekyuma ekitali kizimbulukuse eky’emmere n’ekyuma ekitali kizimbulukuse 304 : Okukozesa ebyuma ebitali bimenyamenya obungi bw’ebyuma ebizito kusukka omutindo, kiyinza okukosa obulamu bw’omuntu. N’olwekyo, okukola ebyuma ebifumba eby’ekyuma ekitali kizimbulukuse kwetaaga okukola bbalansi wakati w’okukulukuta n’obukuumi. Bwe kiba nti nikele ne chromium biba bingi, obuziyiza bw’okukulukuta bwongerwako, naye obungi bwa nickel ne chromium precipitates ezikolebwa nazo zijja kweyongera, ekyongera ku bulabe bw’obukuumi.Kubanga kino, 'ebyuma ebitali binywevu ebintu' (GB9684-2011) National Food Safety Standard , ebifumba chromium, cadmium, cadmium, nickel, nickel, nickel, nickel, nickel, nickel, nickel, nickel, nickel, nickel, leadsed, leadsed chromium.
Lwaki omutindo gw’eggwanga tegulaga kkomo ku kusenguka kwa manganese?
Ensonga emu eri nti olw’okuba ekirungo kya manganese kyeyongera mu kyuma ekitali kizimbulukuse , okuziyiza kwayo okukulukuta n’okuziyiza obusagwa nabyo byeyongera. Ebintu bya manganese bwe bimala okutuuka ku ddaala erigere, ekintu ekyo tekisobola kukozesebwa ng’ebikozesebwa mu kufumba oba ebyuma ebifumba eby’ekyuma ekitali kizimbulukuse. Naye ne ku manganese ow’amaanyi bwe bityo, ebiseera ebisinga tewabaawo bikosa bulamu. Kale wadde ng’omutindo gw’eggwanga ogw’obukuumi bw’emmere tegulungamya mitendera gya manganese, balambika nti ekitundu ekikulu eky’ebintu ebiteekebwamu emmere eby’emmere birina okukolebwa mu kyuma ekitali kizimbulukuse okusinziira ku mutindo gw’eggwanga.
Omutindo ogw’enjawulo .
Ebintu eby’engeri zonna ebitereka emmere n’ebyuma ebikola emmere birina okulonda ekyuma ekitali kizimbulukuse ekya austenitic oba ferritic (1CR18NI9TI,0CR19NI9, 1CR18NI9, 1CR17NI2). Ku kitundu ky’okulongoosa eky’ekintu eky’okusima ebyuma ebisena nakyo kisobola okulonda ekyuma ekitali kizimbulukuse ekya Martensianite (0CR13, 1CR13, 2CR13, 3CR13).
Ebiraga ebikwata ku mubiri n’eddagala ebitongole bye bino wammanga:
Item austenitic ekyuma ekitali kizimbulukuse ferritic martensitic ekyuma ekitali kizimbulukuse
Omusulo (mu PB), Mg/L 4% Acetic Acid Okunnyika ≤ 1.0 1.0.
Chromium (mu CR), Mg/L 4% Acetic Acid Okunnyika mu mazzi ≤ . 0.5
Nickel (mu Ni), Mg/L 4% Acetic Acid soaking solution ≤ 3.0 1.0.
Cadmium (mu Cd), mg/L 4% solution ya acetic acid ≤ 0.02 0.02.
arsenic (AS), mg/L 4% solution ya asidi aseetiiki ≤ 0.04 0.04.
NOTE: Embeera zonna ez'okunnyika zifumbibwa okumala edakiika 30 n'oluvannyuma ebbugumu ly'ekisenge okumala 24h.
Ekyuma ekitali kizimbulukuse eky’emmere grade . Welded Pipe erina enkola nnyingi, munda n’ebweru w’obwetaavu. Stainless steel welded payipu welding treatment kikulu nnyo, 0.5mm era esobola okutuuka ku effect ya internal casting.
Bwe kiba nga payipu eya stainless steel eya grade y’emmere eya welded mu mbeera eya bulijjo yeetaaga okusuulibwa munda n’ebweru, mu kiseera kye kimu yeetaaga . weld okusiiga n’okusala . Annealing eyakaayakana . Obwetaavu bw’okusiimuula munda n’ebweru tebulina kakwate na buwanvu bwa bbugwe, n’embeera y’okusiiga yokka. Obugumu bw’ekisenge bugonvu nnyo okusobola okusuula munda si kizibu nnyo, kubanga okusuula ebweru kuyinza okuba omuwendo gw’okuyita okutono.
If it is welded pipe , tekiba kikulu munda n'ebweru. Era tunuulira dayamita ya tube yo. Seamless tube tesobola kusuulibwa munda. Toyinza kugamba nti obuwanvu bw’ekisenge bwa 0.5 bugonvu nnyo. Kubanga bw’oba n’obuwanvu bw’ekisenge 0.5 obwa mita emu mu buwanvu, tekijja kutegeerekeka, so si kunyigirizibwa flat. Kale kisinziira ku dayamita ya ttanka yo.
Mpozzi payipu yo mpanvu nnyo, obuwanvu bw’ekisenge bugonvu nnyo, ku kusiimuula okw’omunda n’okw’ebweru kwe kulaba enkozesa ya set, tolina byetaago bya waggulu nnyo, tekyetaagisa kwongera ku nsaasaanya eteetaagisa.
