I. Swilaveko swa Masungulo swa Mpimo wa ku Pfuxeta
Hiku hatlisa hundza eka ndzhawu leyinga na vuxiyaxiya eka crystallization Melting point ya PTFE i 327°C, naswona mahiselo ya standard sintering yasuka eka 380°C kuya eka 400°C. Hi nkarhi wa kuhungutiwa ka mahiselo, xilaveko xa nkoka iku hatlisa ku tsemakanya ndzhawu ya mahiselo kwalomu ka 310~315°C laha crystallization rate yifika eka nhlohlorhi swinene.
Maendlelo ya matirhelo lawa ya ringanyetiweke Hiku hatlisa endzhaku ko huma eka sintering furnace, tirhisa ku sindzisiwa ka moya ku kufumela, compressed air blast cooling, kumbe tirhisa ti cooling rollers / tisisiteme to kufumeta mati ku hatlisa u hunguta mahiselo ya lapi ehansi ka 250°C.
Swikombiso swa mpimo wa ku kufumela wa swikombo Ku ya hi ku enta ka xiendliwa, mpimo wa ku kufumela hi ku angarhela wu fanele ku va ehansi ka 30~50°C/min. Eka lapi ra thin-gauge ra mahiselo yale henhla (0.08mm~0.25mm), ku kufumela ka moya swinga fikelela mpimo wa ku kufumela ehenhla ka 100~200°C/min, leswi endlaka leswaku ku hundza hi xihatla eka ndzhawu ya nkoka ya crystallization.
II. Endlelo ra Maendlelo: Ndlela leyi Mpimo wa ku Pfuxeta wu khumbaka Matirhelo ya Swikumiwa
Crystallinity yi boha swivumbeko swa nkoka swa swihumelerisiwa Tindlela to kufumeta ti lawula hiku kongoma crystallinity ya PTFE, leswi yaka emahlweni swi lerisa swihlawulekisi swa nkoka swa coating kukatsa na ku olova, ku namarhela xikan’we na matirhelo yo ka yanga namarheli.
Ku pimanisiwa ka Matirhelo exikarhi ka ku kufumela hi ku hatlisa na ku nonoka
Mode yo Pfuxeta
Ku va kona ka kristala
Mahanyelo ya Matirhelo ya ku Peta
Ku kufumela hi xihatla (Ku tima) .
Ehansi (kwalomu ka 45 ~ 50%) .
Ku olova, ku tiya lokunene, vuandlalo byo olova, ku namarhela loku tiyeke, nhundzu yale henhla yo ka yinga namarheli, yikota ku delamination xikan’we naku pandzeka
Ku kufumela hi ku nonoka (Ku kufumela ka furniture) .
Le henhla (ku tlula 60~70%) .
Yi tiya swinene, ya brittleness yale henhla, yitala ku hunguteka naku rhurhumela, ku tumbuluxiwa ka microcrack, ku hungutiwa ka vutomi bya vutirheli bya non-stick effect
Nhlamuselo ya Microstructural Ku kufumela hiku hatlisa swi sivela kukula ka ti spherulites ta vukulu naswona swi endla xivumbeko xa kahle xa microcrystalline. Leswi swiendla leswaku filimi ya PTFE yi tsindziyela naswona yiva na ductile, loko yirikarhi yi hunguta ntshikelelo lowu saleke exikarhi ka coating na fiberglass substrate.
III. Tindhawu ta Nkoka ta Vulawuri eka Vuhumelerisi bya Vunyingi
Tiyisisa ku kufumela loku fanaka Ku khuluka ka moya wo kufumela kumbe ti rollers to kufumeta tifanele ku hlayisa mahiselo lawa yanga cincekiki eka ku anama ka lapi. Crystallinity ya ndzhawu leyinga ringaniki yita endla leswaku kuva na swiphemu leswingana mavala kumbe swihoxo swa wrinkling.
Papalata ku tshoveka lokukulu ka mahiselo Eka lapi ro tiya ra mahiselo yale henhla (0.5mm kuya e henhla), ku fafazela mati hiku kongoma kumbe ku hlangana hiku hatlisa na ti ultra-cold rollers swinga hlohletela ku onhaka lokukulu loku vangiwaka hiku hunguteka ka mahiselo lokunga fambelaniki exikarhi ka substrate na coating. Ntirho lowu tsakeriwaka i ku kufumela lokukulu ka moya kuya ehansi kuya ehansi ka 250°C loko kungase kufumetiwa kun’wana.
Vulawuri bya ku kufumela eka multi-pass sintering Eka maendlelo ya multi-impregnation & multi-sintering, ku kufumela hiku hatlisa loku ringaneleke swa amukeleka eka swirhendzevutani swa sintering swale xikarhi. Hambiswiritano, goza rohetelela ra surface sintering rifanele ku amukela ku kufumela hiku hatlisa kuva ku tiyisisiwa matirhelo ya kahle ya ntirho wa le henhla.
IV. Nkatsakanyo wa Nkoka
1. Ku kufumela hiku hatlisa swi boha endzhaku ka PTFE cloth sintering ku endlela leswaku molten PTFE yi kota ku tlula ndzhawu ya crystallization ya mahiselo yale henhla hiku hatlisa.
2. Ku kufumela hiku hatlisa swi humesa xivumbeko xa microcrystalline xa crystallinity yale hansi, lexi kunga xilotlelo xaku cinca cinca lokukulu, ku tiya ka fold xikan’we na matirhelo yo leha ya non-stick.
3. Lawula hiku hetiseka kufana ka ku kufumela, sivela thermal shock, naku ringanisa tixedulu ta ku kufumela eka multi-stage sintering kuva ku tiyisisiwa khwalithi ya swihumelerisiwa leyi nga cincekiki.
Loko u lava ku kuma swihlawulekisi leswi nga na vuxokoxoko, swiyimo swa xikombelo na swintshuxo leswi endleriweke photifoliyo ya hina leyi heleleke ya swikumiwa ku katsa na lapi ra mahiselo ya le henhla ya PTFE, thepi yo namarhela ya mahiselo ya le henhla ya PTFE, bandi ra mesh ra mahiselo ya le henhla ya PTFE, bandi ro kandziyisa ku hisa leri nga na swirhabyani, lapi ra PTFE ra tlhelo rin’we, bandi ro fambisa leri nga lwisaniki na mahiselo ya le henhla na fiberglass leyi tiyiselaka ku hisa lapi, hi kombela u hi tihlanganisa hi ku tirhisa vuxokoxoko lebyi nga laha hansi:
Minkarhi hinkwayo hi namarhela filosofi ya vukorhokeri bya xiphurofexinali na vutshembeki, hi mbilu hinkwayo hi nyika swintshuxo swa tiindasitiri swa xiyimo xin’we na vukorhokeri bya vaxavi lebyi anakanyisisiweke eka vatirhisani hinkwavo!
