Mu myaka etaano egiyise, omuze gw’okukulaakulanya payipu ezikoleddwa mu kyuma ekitali kizimbulukuse gubadde mulungi nnyo.Nga tetufuddeeyo ku bunene, omutindo, ne tekinologiya w’okufulumya, wabaddewo enkulaakulana nnene nnyo naddala ekitundu kyayo eky’obwetaavu kigenda kigaziwa mpolampola.Okugatta ku ekyo, nga tekinologiya wa payipu ezikoleddwa mu kyuma ekitali kizimbulukuse bw’agenda yeeyongera okukula, asobola okukyusa mpolampola payipu ezitaliiko musonno ez’ekyuma ekitali kizimbulukuse mu mirimu mingi, gamba nga: ttanka z’ebyuma ebiwanyisiganya ebbugumu, ttanka za bboyiyira eza puleesa eya wakati n’eya wansi, n’ebirala.
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Engeri y’okufulumya payipu ekoleddwa mu kyuma ekitali kizimbulukuse: ebyuma ebikola ekitangaala, okuteeka ssente entono, sipiidi y’okuzimba ey’amangu, enkola ennyangu ey’okuweta, ekika ekigazi eky’okulaga ebintu, obutuufu bw’ebipimo obw’amaanyi, okukyama kw’obuwanvu bw’ekisenge ekitono, obugulumivu obuseeneekerevu n’omuwendo gw’amakungula amangi.Mu mbeera y’okufulumya ebintu mu bungi, omuwendo gwa payipu eziweddwa gusukka ebitundu 20% okusinga ogwa payipu ezitaliiko mugo.Mu myaka egiyise, enkola ya 'welding-cold rolling' eyatwalibwa mu China okukola ttanka z'ekyuma ekitali kizimbulukuse kwe kukozesa coils ezizingiddwa mu nnyonta okusala n'okubumba okusinziira ku specifications, okuziweta mu tubes nga bakozesa multi-gun argon arc welding machine , n’oluvannyuma cold-roll (pull) okukola Ebipimo by’emirimu gya weld okusinga bisobola okuba bye bimu n’ekintu ekisookerwako, era omutindo gw’ebintu gulongoosebwa nnyo.N’olwekyo, ebirungi ebiri mu kukyusa payipu ezitaliiko musonno ez’ekyuma ekitali kizimbulukuse ne ziteekebwamu payipu ezikoleddwa mu kyuma ekitali kizimbulukuse byeyongera okweyoleka.
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Ebirungi ebiri mu kukola payipu ezikoleddwa mu kyuma ekitali kizimbulukuse: Okusookera ddala, mu nkola y’okufulumya payipu ezikoleddwa mu kyuma ekitali kizimbulukuse, omubiri gwa payipu gujja kunyigirizibwa kyenkanyi, n’oluvannyuma oluvannyuma lw’okunywezebwa ku yintaneeti okumasamasa ekikalu okusaanuuka, kungulu kufuuka kuweweevu nnyo, era kungulu okuseeneekerevu kwe kuba si kyangu kugerageranya, nga kiriko Ebintu ebiziyiza okugerageranya.Kino kirungi nnyo mu kusaasaanya ebbugumu era tekikwetaagisa kuyonja nnyo, kikekkereza obudde, amaanyi ne ssente.Ekirala, payipu ekoleddwa mu buziba (welded pipe) kiva mu pulati ekirongooseddwa mu buziba, era enkizo yaayo ey’obuwanvu bwa bbugwe obw’enjawulo tewali kye yeefanaanyirizaako.Mu kiseera kye kimu, esobola okupimibwa mu sayizi ey’okwegomba, n’obutuufu obw’amaanyi.Ekyokusatu, ekintu eky’ekyuma ekitali kizimbulukuse kirina engeri z’okuziyiza okukulukuta n’obulamu obuwanvu obw’okuweereza.
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Embeera eriwo kati ey’ebintu ebikolebwa mu payipu ezikoleddwa mu kyuma ekitali kizimbulukuse: Obusobozi bw’okufulumya payipu ezikoleddwa mu kyuma ekitali kizimbulukuse mu makolero mu China tebukwatagana na bwetaavu bw’akatale k’omunda mu ggwanga.Ebisinga ku ebyuma ebikola ekyuma ekitali kizimbulukuse ebiriwo welded pipe unit tebituukiridde, gamba ng’obutaba na bbugumu kulongoosa n’ebyuma ebigezesa ku yintaneeti, bwe kityo obusobozi bw’okufulumya unit Give full play, generally can only produce general decorative tubes, and the market of medium ne low-grade ekyuma ekitali kizimbulukuse decorative welded tubes okusukka supply;the higher standard industrial welded tubes, nga chemical machinery tubes ne heat exchanger tubes, ba manufacturers batono bokka Kisobola okukolebwa, naye obusobozi bw’okufulumya tebumala nnyo.Hangao Tech (Ebyuma bya SEKO) SZG-JM series precision ekyuma ekitali kizimbulukuse welded payipu okufulumya layini egonjoola ekizibu kino.Layini yonna ey’okufulumya erimu enkola eziwerako nga okukola welding, inner welding seam leveling, welding seam grinding, bright annealing, n’okusala sizing.Enkola ey’amagezi ey’okufuga ebyuma ekwasaganya enkola ya buli kitundu, n’elongoosa obulungi ate n’ekendeeza ku nkozesa y’amasoboza.
Payipu ekoleddwa mu welded esobola okukola ku byuma ebiwanyisiganya ebbugumu?
1. Tubu z’ebintu ez’omutindo ogwa waggulu zisoboka
Tubu y’okuwanyisiganya ebbugumu kitundu ekiteetaagisa mu byuma ebiwanyisiganya ebbugumu mu ttanka ne ttanka, era okutwalira awamu ttanka y’okuwanyisiganya ebbugumu elondebwa okusinziira ku puleesa n’ekisenge ky’amazzi.Kati ekimu ku butategeeragana mu kulonda ttanka eziwanyisiganya ebbugumu ku katale kwe kuba nti ttanka ezikoleddwa mu kyuma ekitali kizimbulukuse teziyinza kukozesebwa nga ttanka eziwanyisiganya ebbugumu, naye GB / 151-1999 eraga bulungi nti ttanka eziwanyisiganyizibwa mu kyuma ekitali kizimbulukuse zisobola okulondebwa nga puleesa y’oludda lwa ttanka ye ≤6.4MPa.Naddala kati nga enkola y’okufulumya payipu ezikoleddwa mu kyuma ekitali kizimbulukuse kati ekuze nnyo, esobola okutuukiriza mu bujjuvu ebyetaago bya ttanka eziwanyisiganya ebbugumu mu bulambalamba, era eraga ebirungi byayo eby’enjawulo.
2. Enkola y’okufulumya ekuze, austenitic stainless steel welded payipu ejja kuba esooka okulonda
Okuva ttanka y’ekikyusa ebbugumu bwe kikola ekifo ekitambuza ebbugumu eky’ekiwanyisiganya ebbugumu, obunene bwa ttanka y’ekiwanyisiganya ebbugumu bulina kinene kye bukola ku kutambuza ebbugumu.Nga okozesa obupiira obutono obwa dayamita, ekifo eky’okuwanyisiganya ebbugumu buli yuniti ya voliyumu y’ekiwanyisiganya ebbugumu kiba kinene, ebyuma biba bitono nnyo, ebyuma ebikozesebwa buli yuniti y’ekitundu ky’okutambuza ebbugumu biba bitono, era n’omugerageranyo gw’okutambuza ebbugumu nagwo guba waggulu.Wadde nga kizibu okukola, okukozesa austenitic stainless steel welded tubes nga heat exchanger tubes kiyinza okwewala ebizibu ebyo waggulu.Olw’okuba austenitic stainless steel welded tubes zirina obulungi okugumira okukulukuta n’okungulu okuseeneekerevu, era enkola y’okufulumya ekuze, kale austenitic Stainless steel welded tubes ze zisooka okulonda ku heat exchanger tubes.Ebintu ebiyinza okulongoosebwa ne Hangao Tech (Ebyuma bya SEKO) SZG-JM series welded pipe production line mulimu: ekyuma ekitali kizimbulukuse, austenite, ferrite, titanium alloy ne dual phase steel, nga bino bikola nnyo era nga bisobola okuteekebwawo n’okutereezebwa okusinziira ku biragiro bya bakasitoma.
