Ensonga eziviirako okukulukuta kw'ekyuma ekitali kizimbulukuse welded payipu .

Payipu ezimu eziweereddwa ekyuma ekitali kizimbulukuse oluvannyuma lw’okumaliriza okufulumya, oluvannyuma lw’ekiseera wabaawo okukulukuta ku ngulu, n’okutuuka n’okukutuka, lwaki ekyo kiri?

Kubanga mu nkola y'okufulumya payipu eziweereddwa, omutendera omukulu ennyo gusiwuuka empisa, kwe kugamba, 'annealing'. Mu nkola y’okusaanuusa ebyuma n’okufulumya, tujja kutereeza enkola y’ekintu okufuula ekyuma okutuukiriza eby’okulabirako bye twetaaga, nga Cr, Cr, Ni, N, Nb, Ti, Mn, MO, Si n’ebyuma ebirala. Omutindo gwe twetaaga okulongoosaamu kwe kuziyiza okukulukuta okw’amaanyi okw’ekyuma, nga kino kye tuyita ekyuma ekitali kizimbulukuse. Okuziyiza okukulukuta kw’ekyuma ekitali kizimbulukuse kuva mu elementi erimu mu nsengekera - Cr. Ebirimu mu Taipa bwe bituuka ku ntikko, okuziyiza okukulukuta kw’ekyuma kujja kulongoosebwa nnyo. Ebirimu CR ebya bulijjo mu kyuma ekitali kizimbulukuse birina okutuuka ku bitundu ebitakka wansi wa 10.5%.

Ebika by’okukulukuta ebitera okukulukuta: okukulukuta okw’omu bitundu eby’enjawulo, okukulukuta kw’okunyigirizibwa .

Intergranular corrosion, its the phenomenon of intergranular corrosion in the welding process of welded pipe, olw’ebbugumu eringi ekivaamu ensengekera y’eddagala wakati wa weld n’ebintu eby’omunda eby’ekintu, ekintu kya kaboni n’ekintu kya chromium mu kyuma okukola ekirungo kya chromium (CR2C6), ekifuula ekitundu ky’empeke chrom chrochum chrochum chrom chrochum, era okukkakkanya ekirungo kya chromium.

Okukulukuta kw’okunyigirizibwa kuva mu maanyi g’ensengekera agakolebwa ng’olutimbe lw’ekyuma lufuukuuse olw’okunyigirizibwa okw’ebweru mu kiseera ky’okuweta mu mutendera gw’okukola, era gujja kusigala munda mu payipu eya welded oluvannyuma lw’okuweta. Singa tekiggyibwawo mu budde, obukaluba bwa payipu eya welded bujja kufuuka waggulu naddala, era kizibu okukola okulongoosa okuddako.

Okusinziira ku bizibu bino ebibiri ebiyinza okuba eby’omutindo, ebyuma byaffe bisobola bitya okutuuka ku kugonjoola ensonga mu bujjuvu?

Ebintu ebikwata ku kyuma ekitangaavu ekya Annealing Machine ekya Hangao Technology Company:

1, empeke ennungi, ensengekera y’ekyuma ekifaanagana n’obutonde.

2, okumalawo okunyigirizibwa okw’omunda okw’ekyuma n’okuziyiza okukyukakyuka n’okukutuka.

3, okukendeeza ku bukaluba bw’ekyuma, okulongoosa obuveera, okusobola okwanguyiza okulongoosa okuddirira.

Ebintu bitaano ebikwata ku byuma ebitangalijja (bright annealing equipment):

1, Omutindo gw’okusiba omubiri gw’ekikoomi mulungi, omulimu gw’okusiba obubi gujja kuleka ggaasi okufiirwa mu mubiri gw’ekikoomi, tesobola kukola kifo kya maanyi.

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3, puleesa ya ggaasi mu mubiri gw’ekikoomi, okusobola okwewala okuyingira kw’omukka ogw’ebweru mu mubiri gw’ekikoomi, puleesa eri mu kyokero erina okuba esinga puleesa ey’ebweru.

4, Annealing Ebbugumu Okufuga, oba okutuuka ku bbugumu erisinga obulungi erya annealing ery’ekintu kya payipu y’ekyuma.

. Kubanga ggaasi y’ensonga enkulu ekosa omutindo gwa payipu z’ekyuma ekitali kizimbulukuse.