I-Polyester vs. Inayiloni Flat Slings: Chemical Resistance and Elongation Profiles

Isitshalo samakhemikhali sidinga isihlilingi esiyisicaba ukuze siphakamise izingxenye zensimbi engagqwali endaweni lapho kukhona intuthu ye-asidi. Indawo yokulungisa olwandle idinga isihlilingi esikwazi ukuphatha uwoyela we-hydraulic kanye nokuchayeka emanzini olwandle. Yomibili le misebenzi idinga izihlilingi eziyisicaba zokwenziwa—kodwa ukukhetha okufanelekile kwempahla kuhlukile ngakunye.

I-Lishenflex ibilokhu ikhiqiza okokwenziwa izihlilingi eziyisicaba iminyaka engaphezu kwamashumi amabili, futhi umbuzo owodwa esiwuzwa njalo uthi: I-polyester noma inayiloni—iyiphi enye indlela engcono? Impendulo ayivamile ukuba lula. Ngokusho kweWikipedia yokufaka i-polyester , i-polyester iyisigaba sama-polymers anenani lokuqina kwawo, ukumelana namakhemikhali, kanye nokumunca umswakama ophansi. Ukufakwa kweWikipedia kunayiloni kuchaza ukuthi inayiloni ibaluleke kakhulu ngenxa yamandla ayo, ukunwebeka, kanye nokumelana nokuhuzuka. Zombili izinto zokwakha zenza izihlilingi ezinhle kakhulu zokuphakamisa, kodwa azishintsheki . Ngokwe- Canadian Centre for Occupational Health and Safety (CCOHS) , izihlilingi zenayiloni zonakaliswa ama-asidi kodwa zimelana nama-alkali, kuyilapho izihlilingi ze-polyester zilinyazwa ama-alkali kodwa zimelana nama-asidi. Okubalulekile ukufanisa impahla nemvelo.

Ukumelana Namakhemikhali: Umehluko Obalulekile Wokuphepha

Umehluko obaluleke kakhulu phakathi kwe-polyester ne-nylon flat slings ukuhambisana kwazo kwamakhemikhali . Ukukhetha izinto ezingalungile endaweni yamakhemikhali kungaholela ekuhlulekeni okuyinhlekelele—ngokuvamile ngaphandle kwesixwayiso esibonakalayo.

Ngokusho komhlahlandlela wokuqhathanisa we-Liftex , umehluko obalulekile wokumelana namakhemikhali yile :

Umthombo: I-Liftex; CCOHS; I-CERTEX Denmark

I-CCOHS iqinisekisa ukuthi inayiloni ingaphansi kokuwohloka kwama-asidi asukela kokungekho kuye ekuwohlokeni okuphelele, kuyilapho i-polyester imelana nama-asidi amaningi kodwa yonakaliswa ama-alkali. I-CERTEX Denmark yengeza ukuthi izixazululo zama-asidi noma ama-alkali angenabungozi ekugxilweni okuphansi zingagxila ngokuhwamuka futhi zidale umonakalo.

Isexwayiso esibalulekile sokuphepha : Ukulimala kwamakhemikhali kuzihlilingi zokwenziwa ngokuvamile akubonakali . Imicu iba buthaka ngaphakathi kuyilapho isihlilingi sibonakala sivamile phezulu. Ngokusho kwe -Empire Rigging , umonakalo wamakhemikhali ngokuvamile awubonakali—imicu iba buthaka ngaphakathi kuyilapho isihlilingi sibukeka sivamile ngokuphelele ngaphandle, yingakho kubalulekile ukwazi indawo okuzungezile ngaphambi kokuba ukhethe impahla yakho.

I-Acid Environments-Khetha i-Polyester

Lapho uphakamisa endaweni ene-acid exposure-izitshalo zamakhemikhali, ukukhiqizwa kwebhethri, ukuqedwa kwensimbi, izigayo zephepha- i -polyester iyisinqumo esifanele. Inayiloni, ngokuphambene, ibhujiswa ama-asidi. I-Mazzella Companies iphawula ukuthi inayiloni ingaphansi kokuwohloka kwama-asidi asukela kokuncane kuya ekuwohlokeni okuphelele, kuyilapho i-polyester imelana nama-asidi amaningi. I-NSRP Ship Production Rigging Guide ixwayisa ngokuthi i-hydrochloric ne-sulfuric acid, noma isesimweni esihlanjululwe, ingabangela ukulahlekelwa okukhulu kwamandla enayiloni.

Izindawo ze-Alkali-Khetha Inayiloni

Lapho uphakamisa endaweni ene-alkali exposure—izixazululo zokuhlanza i-caustic, ukukhiqizwa kukakhonkolo, ukucubungula okuthile kwamakhemikhali— inayiloni iyisinqumo esingcono. I-polyester yonakaliswa ama-alkali, kuyilapho inayiloni ivikelekile emiphumeleni yama-alkali. Umhlahlandlela wezakhiwo zefayibha ze-UNIROPE uphawula ukuthi inayiloni imelana kahle nama-aldehyde, ama-hydrocarbon, ama-ether, nama-alkali athile.

Amaphrofayili Okwelula: Yelula Ngaphansi Komthwalo

Umehluko wesibili omkhulu phakathi kwe-polyester ne-nylon flat slings ukunwebeka —ukuthi isihlilingi sinwebeka kangakanani lapho silayishwa.

I-Liftex inikeza idatha ye-elongation elandelayo:

Umthombo: I-Liftex; I-UNIROPE

I-polyester - Ukunemba nokuzinza

Ubude obuphansi be-polyester (3–4% ngomthwalo olinganiselwe) kuyenza ibe yinketho ekhethwayo:

• Ukuma komthwalo okunembile —ukunwebeka okuncane kusho ukulawula okungcono

• Izinhlelo ze-headroom ephansi - isikhala esincane esime mpo esidliwe ngesikhathi sokuphakamisa

• Imithwalo engakwazi ukubekezelela ukubhampa noma ukushwiba

• Imisebenzi edinga ukuphakanyiswa okuzinzile, okubikezelwe

I-Empire Rigging inikeza isibonelo esisebenzayo: ukuphakamisa umthwalo wamafidi angu-20 ngesihlilingi senayiloni esinwebeka u-10% kuphumela cishe kubude obungamafidi amabili, kuyilapho isihlilingi se-polyester singanwebeka cishe amayintshi ayisikhombisa kuphela. Ezikhaleni eziqinile, lowo mehluko ubalulekile.

Inayiloni—I-Shock Absorption kanye 'Nentethelelo'

Ubude obuphakeme benayiloni (6–10% ngomthwalo olinganiselwe) kunikeza:

• Ukumuncwa ukushaqeka —izinto 'ezinikezayo' ngaphambi kokuthatha amandla aphelele

• Ukubekezelela ukulayisha okunamandla - okungcono emithwalweni eshintshayo ngesikhathi sokuphakanyiswa

• Ukuthethelela phezu kwezingxenyekazi zekhompuyutha ezingavamile —inayiloni ithethelela kakhulu uma ingaphansi kokunqwabelana nokubekwa phezu komumo wehardware ongajwayelekile

• Umkhawulo wokuphepha othuthukisiwe we-opharetha - ukunwetshwa kudonsa imithwalo engazelelwe

Ngokusho kwe -Liftex , ukunwebeka okuphezulu kwenayiloni kusebenza njengesibambisi sokushaqeka, kukwenze kube yinketho ekhethwayo lapho imithwalo ingase ishintshe noma uma ukulayisha okuguquguqukayo kuwukukhathazeka.

Umswakama kanye Nempendulo ye-UV

Umswakama Effects

Inayiloni i-hygroscopic —imunca umswakama endaweni ezungezile. Ngokusho kwe- NSRP Ship Production Rigging Guide , inayiloni ilahlekelwa u-15% wamandla ayo lapho . i-Liftex emanzi ne -CCOHS iqinisekisa lokhu, iphawula ukuthi izihlilingi zenayiloni zingalahlekelwa amandla angu-10-15% uma zimanzi. Amandla abuyiselwa lapho omiswa, kodwa isihlilingi akufanele sisetshenziswe ngomthamo olinganiselwe uma simanzi.

I-polyester ayimumbi amanzi futhi ayiphelelwa amandla uma imanzi. Lokhu kwenza i-polyester ibe yisinqumo esithandwayo se:

• Izicelo zasolwandle nezisogwini

• Amakheshi angaphandle ezimeni ezimanzi

• Izindawo ezinomswakama ophezulu

I-CERTEX Denmark iphawula ukuthi i-Dyneema® ayimumbi amanzi, ngokungafani nezinye izinto ezifana ne-polyester ne-polyamide.

Ukumelana ne-UV

I-polyester inikeza ukumelana kwe-UV okuphakeme uma kuqhathaniswa nenayiloni. Imicu yenayiloni ithintwa imisebe ye-UV nokukhanya kwelanga, okuholela ekulahlekeni kwamandla okukhulu ngokuhamba kwesikhathi. I-Mazzella Companies ixwayisa ngokuthi izindawo lapho izihlilingi zewebhu zokwenziwa zivezwa ngokuqhubekayo ekukhanyeni kwe-ultra-violet zingathinta amandla okwenziwa kwewebhu ngamazinga ahlukahlukene, ukusuka ekuwohlokeni okuncane kuye kokuphelele, nokuthi ukuwohloka kuyanda . Kuma-slings asetshenziswa ngaphandle noma elangeni eliqondile, i-polyester iyisinqumo esihlala isikhathi eside.

Imikhawulo Yezinga lokushisa

Ngaphansi kwe -EN 1492-1 , kokubili i-polyester ne-nylon flat slings kulungele ukusetshenziswa nokugcinwa ebangeni lokushisa -40°C kuya ku-100°C . Lokhu kusebenza kuzo zombili izinto zokwakha. Nokho, i-Empire Rigging iphawula umehluko ongokoqobo emikhawulweni yokusetshenziswa okuqhubekayo: inayiloni ilinganiselwe kufika ku-194°F (90°C), kuyilapho i-polyester ilinganiselwe kufika ku-180°F (82°C)—ingaphansi kancane. Ngaphezu kwalawa mazinga okushisa, izinto ezisetshenziswayo ziqala ukuphelelwa amandla.

Inothi elibalulekile : Endaweni yamakhemikhali, lawa mazinga okushisa angahluka, futhi kufanele kufunwe iseluleko somphakeli .

Ukuhlonza: Ungayitshela Kanjani I-Polyester kusuka Inayiloni

I-ASME B30.9 kanye ne-WSDA-WS-1 zidinga ukuthi isilingi ngasinye sewebhu sibe nomaki abanamathiselwe unomphela osho okokusebenza . Ngaphezu kwalokho, izihlilingi ze-polyester zinomugqa ohlonzayo oluhlaza okwesibhakabhaka olulukwe kuwebhu —uma ubona umugqa oluhlaza okwesibhakabhaka, i-polyester. Izihlilingi zenayiloni azinawo lo mugqa wokuhlonza. Isistimu yokubhala ikhodi ngaphansi kwe-EN 1492-1 isebenza kuzo zombili izinto ngokulinganayo.

Umhlahlandlela Wokukhetha

Izincomo Ezifingqiwe Nezisebenzayo

Izihlilingi eziyisicaba ze-polyester nezenayiloni zombili zinikeza amandla amahle kakhulu nokuqina, kodwa azishintsheki . Ukukhetha izinto ezingalungile zendawo yakho kungaholela ekulimaleni okufihliwe kanye nokwehluleka okungazelelwe.

Okuthathwayo okubalulekile:

1. Izimo ze-Acid = I-Polyester -inayiloni ibhujiswa ama-asidi

2. Izindawo ze-alkali = Inayiloni -i-polyester yonakaliswa ama-alkali

3. Ama-Precision lifts = I-Polyester -ubude obuphansi bunikeza ukulawula

4. Imithwalo enamandla = Inayiloni —ukunwebeka okuphezulu kudonsa ukushaqeka

5. Ingaphandle/emanzi = I-Polyester —Ingazweli ku-UV futhi imelana nomswakama

6. Hlola umugqa oluhlaza okwesibhakabhaka —izihlilingi ze-polyester zinomugqa wokulandelela oluhlaza okwesibhakabhaka; inayiloni ayinayo

7. Njalo qinisekisa ithegi —I-ASME B30.9 idinga ukuhlonza okubalulekile kuthegi yesihlilingi

I-Lishenflex ikhiqiza kokubili izihlilingi eziyisicaba ze-polyester nezenayiloni ku-EN 1492-1 kanye namazinga e-ASME B30.9, anokuhlonza okucacile okubalulekile kanye nokumaka umthamo onemibala. Sinikeza isiqondiso ekukhetheni impahla ngokusekelwe endaweni yakho yamakhemikhali ethize kanye nezidingo zohlelo lokusebenza.

Uma udinga usizo lokunquma ukuthi i-polyester noma inayiloni iyisinqumo esifanele somsebenzi wakho wokuphakamisa—noma udinga usizo lokuhlonza isihlilingi esifanelekile sendawo esebenza ngamakhemikhali—sicela uthumele i-imeyili ku- sales@lishenflex.com , futhi ithimba lethu lezobuchwepheshe lizohlinzeka ngokusekela komuntu ngamunye.