Loko u tshame u peta xiphemu xa PTFE-coated fiberglass fabric sharply, kumbexana u vone layini yo basa ya crease yi humelela hi xihatla. Yi peta nakambe endhawini leyi fanaka, kutani lapi ri nga ha handzuka.
Leswi a hi xihoxo – i mahanyelo ya ntumbuluko ya nchumu lowu. Lapi ra mahiselo yale henhla ra PTFE ri humelela swinene eka ku lwisana na kuhisa, tikhemikhali, na ku namarhela, kambe ku lwisana na flex (ku tiyisela ka ku peta loku phindha-phindhiweke) i nhundzu ya rona ya michini leyi tsaneke.
Aokai PTFE yi ringetile vutomi bya flex eka ku enta ko tala na ku luka. Xihloko lexi xi hlamusela leswaku ha yini lapi ri nga peta kahle, xi ri pimanisa ni swilo swin’wana naswona xi nyikela tindlela leti tirhaka to tirha ku rhendzela xipimelo lexi.
Ha Yini Lapi Ra PTFE Ri Ri Na Ku Tiyisela Ka Flex Yo Biha?
Xivangelo xa rimitsu i fiberglass substrate , hayi PTFE coating.
1. Fiberglass – yi tiya kambe yi tshoveka
Ti fibre ta nghilazi tina matimba yale henhla swinene ya tensile kambe elongation yale hansi swinene loko yi tshoveka (hi ntolovelo 2-4%). Loko ti goveka hi ku phindha-phindha, ti- filament ha yin’we-yin’we ti karhala ni ku tshoveka. Loko ti fibre nyana ti tshoveka, ntshikelelo wu dzika eka letinga sala, leswi yisaka eka ku hangalaka hiku hatlisa – lapi ri handzuka hiku olova.
2. PTFE coating – xisirhelelo lexi nga nyawuriki
Leyara ya PTFE yi tota ti fibre strands, yi hunguta ku hlangana ka le ndzeni naswona yi antswisa nyana ku olova. Hambiswiritano, a yi nge swi koti ku herisa ku tshoveka ka nghilazi. Swi hlwela ntsena ku pandzeka ka fibre hi margin leyintsongo.
Xana Yi Fananisiwa Njhani Ni Swilo Swin’wana?
Swilo
Ku lwisana na Flex (Xiyenge) .
Hikokwalaho ka yini
Fiberglass leyi funengetiweke hi PTFE (xihloko lexi) .
Vusweti
Tifibre ta nghilazi leti tshovekeke ta pandzeka ehansi ka ku gombonyoka hi ku phindha-phindha
Filimi ya PTFE yo basa (skived) .
Swi kahle swinene (madzana ya magidi ya swirhendzevutana) .
Ku hava ku tiyisisiwa, tikhetane ta timolekhuli leti cinca-cincaka
Lapi ra fiberglass leri nga pfanganisiwangiki
Swi bihe ngopfu ku tlula leswi pfanganisiweke
PTFE coating yi hunguta inter-fiber abrasion, hikokwalaho coated yi antswa nyana
Lapi ra Aramid (xikombiso, Nomex) .
Kahle
Ti fibre ta organic hi ntumbuluko ti olova swinene
PPS kumbe lapi ra polyester
Kahle
Ku tiya ka kuhisa ka le hansi kambe vutomi bya flex byi antswa swinene
Key takeaway: PTFE-coated fiberglass yitshama eka makumu yale xikarhi kuya ehansi exikarhi ka malapi ya mahiselo yale henhla kuva yikota ku flex. Yi antswa ku tlula nghilazi leyi nga ambalangiki nchumu kambe yi bihe ngopfu ku tlula filimi ya PTFE leyi tengeke.
Swilo Swa Nkoka Leswi Khumbaka Ku Lwisana Ka Flex
1. Ku tiya – nchumu wa nkoka swinene
Ku tiya
Ku Tiyisela Ka Ku Peta loku Xiringaniso
Mode ya ku tsandzeka
0.08mm ya xirhendzevutani
Madzana kuya eka ~1,000 wa ti folds
Ku pandzeka ka micro-cracking hakatsongotsongo
0.13mm ya xirhendzevutani
Madzana ku ya eka madzana ma nga ri mangani ya swiphemu
White crease endzhaku ka sharp fold
0.25mm kuya ehenhla
Makhume ya ti folds – ku pandzeka loku vonakaka eka 50 wa swirhendzevutani
Ku tshoveka ka brittle, ku tshoveka ka xifunengeto
Nawu wa xihatla: Malapi yo olova ya olova ku antswa. Eka switirhisiwa leswi lavaka ku gombonyoka hi ku phindha-phindha, boxa grade yo olova swinene leyi fikelelaka swilaveko swa wena swin’wana (matimba, mahiselo).
2. Ku akiwa ka ku luka
Satin weave – ti floats to leha ti pfumelela ti yarns kuva ti rhetela nyana, leswi hangalasaka ntshikelelo wa ku gombonyoka. Vutomi byo antswa bya flex ku tlula plain weave.
Plain weave – tinhla to hlanganisa to tiya ti pfala tintambhu; ntshikilelo wu dzika eka tindhawu leti ku hlanganaka tindlela. Ku lwisana na flex yo biha swinene.
3. Ku hisa ka ntirho
Eka mahiselo yale henhla (200-260°C), PTFE coating ya olova, naswona matimba ya michini ya fiberglass ya hunguteka. Leswi swi nyanyisa ku lwisana na ku karhala ka flex. Loko ku cheriwa ka wena ku katsa ku hisa lokukulu na ku gombonyoka nkarhi na nkarhi, langutela vutomi byo koma.
4. Radius yo gombonyoka
Radius leyikulu = vutomi byo leha. Sharp creasing (radius <1mm) yi endla ti dead folds letingana ku tshoveka ka fibre hi xihatla. Eka ti guide rollers, tirhisa diameter leyikulu swinene leyi tirhaka. Tanihi nkongomiso wo khwaxa, diameter yale hansi leyi ringanyetiwaka ya roller i 10-20x ya vukulu bya lapi.
Data ya xikambelo xale ndzeni (Aokai PTFE) : Eka 0.13mm satin weave fabric, ku gombonyoka ehenhla ka 10mm mandrel swifikelerile 500-800 wa swirhendzevutani loko kungase vonaka ku pandzeka. Ehenhla ka 5mm mandrel, swirhendzevutani swihunguteke kuya eka 100-150. Ehenhla ka 2mm mandrel (sharp crease), ku tsandzeka swihumelerile eka 20 wa swirhendzevutani.
Switsundzuxo swa Ku Tirhisa Leswi Tirhaka
Loko switirhisiwa swa wena swi lava ku tshamela ku gombonyoka loku tlheriseriweke endzhaku – ku fana na:
Mabandhi yo fambisa ya welder ya frequency ya le henhla
Mabandhi ya tension lawa ya phutselaka ti pulley letintsongo
Ku susa swivumbeko swa conveyor belts hi ku jika loku tlhavaka
U ni tindlela tinharhu leti u nga ti hlawulaka:
1. Nhlawulo wa 1 – Ku antswisa nhlawulo wa malapi ya PTFE endzeni ka swipimelo swa wona
Hlawula ti grade to olova (0.08mm kuya eka 0.13mm) kutlula leti tikaka
Hlawula ku luka ka satin ku tlula ku luka loku nga riki na nchumu
Kombela datha ya xikambelo xa MIT flex eka muphakeri wa wena (ASTM D2176 kumbe leswi fanaka na swona)
Dizayini ya ti radii letikulu to gombonyoka eka layout ya muchini
Amukela lapi ra PTFE tani hi leri dyiwaka – pulana ku cinciwa nkarhi na nkarhi (tinhweti tin’wana na tin’wana ti nga ri tingani ku ya hi nhlayo ya xirhendzevutani) .
2. Nhlawulo wa 2 – Cinca eka filimi ya PTFE leyi tiyeke
Pure PTFE film (skived) yina ku lwisana loku hlawulekeke ka flex. Hambiswiritano, ayi pfumala xitiyisekiso xa fiberglass, hikokwalaho yina matimba yale hansi ya tensile naswona yi handzuka hiku olova loko yi tshikileriwa. Yi lulamerile eka switirhisiwa swo olova, swa low-tension bending.
3. Nhlawulo wa 3 – Tirhisa aramid kumbe lapi rin’wana ra organic fibre
Aramid (xikombiso, Nomex) kumbe PPS fabric leyi pfanganisiweke na PTFE yinyika vutomi byo antswa bya flex kutlula glass-based PTFE fabric. Ku cinca cinca: ku tiya ka mahiselo yale hansi loku yaka emahlweni (hi ntolovelo ≤200°C) xikan’we na swivumbeko swohambana hambana swale henhla. Eka switirhisiwa leswinga ehansi ka 200°C leswingana ku gombonyoka lokukulu, languta swin’wana leswi.
Aokai PTFE yi endla lapi ra aramid leri pfanganisiweke na PTFE loko ri komberiwa. Tihlanganisi na hina ku kuma temperature na flex data.
Nkatsakanyo – Tiva Swipimelo, Dizayina Hi ku Landza
Lapi ra PTFE ra mahiselo yale henhla ri yima kahle eka tension, kuhisa lokukulu (260°C), na nhlaselo wa tikhemikhali. Kambe ku lwisana ka yona loku nga riki kahle ka flex i xihinga xa xiviri. A yi nge swi koti ku tiyisela ku peta loku tlhavaka loku phindha-phindhiweke ku fana ni mabandhi ya rhaba kumbe filimi ya PTFE leyi tengeke.
Yi tirhise laha ku gombonyoka ku olovaka kumbe ku nga tolovelekangiki. Laha ku gombonyoka loku tlhavaka kumbe loku tshamelaka ku nga papalateki, famba u olova, tirhisa satin weave, engetela radius yo gombonyoka kumbe u cinca swilo.
Aokai PTFE yi nyika datha ya xikambelo xa flex eka tigiredi ta hina hinkwato ta malapi. Hi nga ku pfuna ku hlawula ku tiya loku faneleke na ku luka eka swilaveko swa ku gombonyoka swa xikombelo xa wena.
Ku kuma swihlawulekisi swa vuxokoxoko na swintshuxo swa ntolovelo swa lapi ra mahiselo ya le henhla ya PTFE, thepi, bandi ra mesh, bandi ra fusing, na swin’wana:
