Malunghana ni ku kufumela ka tiphayiphi to khavisa ta nsimbi leyi nga riki na swilo eka endlelo ra vuhumelerisi, swilaveko swa xithekiniki leswi tirhisiwaka laha swi le henhla swinene.Xikombiso, loko vulawuri bya mahiselo byinga ri kahle, leswi endlaka leswaku kuva na 316 thermal stress na structural stress, phayiphi ya nsimbi yinga pandzeka kumbe ku onhaka.Landzelaka, Hangao Tech (SEKO Machinery) yi ta nghenisa hi vuxokoxoko vutivi byo humelerisa tiphayiphi to khavisa ta nsimbi leyi nga riki na swilo swo bola ku kufumeta:
Hikwalaho ka ku hangalasiwa nakambe ka tension yale ndzeni hinkarhi wa ku lulamisiwa, chubu ra stainless steel ro khavisa rita onhaka, naswona ku pakanisa ka ku lulamisiwa aswinga tiyisisiwi.Ku engetela kwalaho, ku khoma swiphemu leswikulu swi tala ku va ni ntshikilelo lowu saleke.Ti tubes leti hinkwato to khavisa ta stainless steel tifanele ku yimisa ku hunguta ntshikelelo endzhaku ka rough machining.Ku susiwa ka internal stress annealing hi ntolovelo i ku khavisa chubu ra stainless steel.Eka 500-550°C, khale ayi tirhisiwa eka mahiselo ya kamara kuringana 50 kuya eka 100 wa timinete, 3 kuya eka 5 wa tiawara kumbe kutlula (kuya hi nhlayo ya ti furnaces leti vekiweke) kuva yi hlayisa tension yale ndzeni kuringana nkarhi woleha.Swi vuriwa ku dyuhala ka ntumbuluko, kambe ndlela leyi yi lehe ngopfu naswona hi ntolovelo a yi tirhisiwi.
Loko chubu ro khavisa ra nsimbi leyi nga riki na swilo ri titimela, ehenhla ni swiphemu swin’wana swo olova hi ntolovelo swi humesa xivumbeko xo basa, xo tiya, xo basa lexi tshovekeke.Hikokwalaho, ti stainless steel decorative tubes leti tolovelekeke tifanele kuva ti annealed kutani ti standardized kuva ti herisa swihoxo swa casting.Mahiselo ya annealing kumbe normalization ngopfu ngopfu yale xikarhi ka 850 na 950°C.Mahiselo ya hlayisiwa kuringana 1-2 wa tiawara, cementite yi endliwa eka graphite na austenite (xiteji xosungula xa graphitization).Hina online continuous bright annealing furnace yi nga ku pfuna.A yi lavi ku hisiwa ka ha ri emahlweni, yi nga fikelela mahiselo lamanene ya annealing endzhaku ka 10 wa tisekoni endzhaku ko sungula.
Ku tlula kwalaho, yi hlanganisiwe na sisiteme ya PLC, u nga vona hi ku kongoma datha ya nkarhi wa xiviri, ku vekiwa tihlo ka nkarhi wa xiviri ka ntshikelelo wa moya, ku khuluka ka mati, mahiselo yo tirha, rivilo.Hi nkarhi lowu landzelaka wo kufumela wa furniture, secondary cementite na eutectoid cementite swita endliwa eka graphite (i.e., xiteji xavumbirhi xa graphitization).Eku heteleleni, perlite yi cheriwa eka ferrite kumbe ferrite matrix ku hunguta ku tiya na ku tiya ka casting.Ku engetela kwalano, endlelo ro semende i 850-950°C, kambe semendhe eka maendlelo ya standardization, leswinga hunguta nkarhi wo kufumela wa ku tiya ka chubu ra stainless steel ro khavisa, swinga tlhela swikuma matimba yokarhi xikan’we naku tiya ka matrix ya pearlite swin’we .
