Polyester vs. Nylon Flat Slings: Tshuaj Tiv Thaiv thiab Elongation Profiles

Cov nroj tsuag tshuaj xav tau ib lub tiaj tiaj rau nqa cov khoom tsis muaj steel hlau nyob rau hauv ib puag ncig uas muaj cov pa acid. Lub chaw kho dej hiav txwv xav tau ib txoj hlua uas tuaj yeem tuav cov roj hydraulic thiab dej hiav txwv. Ob qho kev ua haujlwm xav tau cov hlua khi hluavtaws-tab sis xaiv cov khoom siv yog txawv rau txhua tus.

Lishenflex tau tsim khoom hluavtaws tiaj tus slings rau ntau tshaj ob xyoo lawm, thiab ib lo lus nug uas peb hnov ​​​​ntau zaus yog: Polyester lossis nylon - uas yog qhov kev xaiv zoo dua? Cov lus teb tsis tshua yooj yim. Raws li Wikipedia nkag mus rau polyester , polyester yog ib pawg ntawm cov polymers muaj nuj nqis rau nws cov kav ntev, tshuaj tsis kam, thiab tsis tshua muaj dej nqus. Wikipedia 's nkag mus rau nylon piav qhia tias nylon muaj nuj nqis rau nws lub zog, elasticity, thiab kev puas tsuaj. Ob qho khoom ua tau zoo heev lifting slings, tab sis lawv tsis sib hloov . Raws li Canadian Center for Occupational Health and Safety (CCOHS) , nylon slings puas los ntawm acids tab sis tiv alkalis, thaum polyester slings puas los ntawm alkalis tab sis tiv taus acids. Qhov tseem ceeb yog txuam cov khoom siv rau ib puag ncig.

Chemical Resistance: Qhov txawv ntawm Kev Nyab Xeeb Tseem Ceeb

Qhov tseem ceeb tshaj qhov sib txawv ntawm polyester thiab nylon ca slings yog lawv cov tshuaj sib haum . Kev xaiv cov khoom tsis raug rau ib puag ncig tshuaj tuaj yeem ua rau muaj kev puas tsuaj loj - feem ntau tsis pom kev ceeb toom.

Raws li Liftex cov khoom sib piv cov lus qhia , cov tshuaj tiv thaiv tseem ceeb sib txawv yog :

Source: Liftex; CCOHS; CERTEX Denmark

CCOHS lees paub tias nylon yuav raug degradation nyob rau hauv cov kua qaub xws li tsis muaj rau tag nrho cov degradation, thaum polyester yog resistant rau ntau acids tab sis puas los ntawm alkalis. CERTEX Denmark ntxiv tias cov kev daws teeb meem ntawm cov kua qaub los yog alkalis uas tsis muaj kev phom sij ntawm qhov tsis tshua muaj siab tuaj yeem ua kom muaj zog los ntawm evaporation thiab ua rau muaj kev puas tsuaj.

Kev ceeb toom kev nyab xeeb tseem ceeb : Kev puas tsuaj rau cov khoom siv hluav taws xob feem ntau pom tsis tau . Cov fibers tsis muaj zog sab hauv thaum lub sling zoo li qub ntawm qhov chaw. Raws li lub teb chaws Ottoman Rigging , tshuaj lom neeg kev puas tsuaj feem ntau pom tsis tau - cov fibers tsis muaj zog nyob rau hauv thaum lub sling zoo li zoo kawg nkaus nyob rau sab nraum, uas yog vim li cas paub koj ib puag ncig tseem ceeb ua ntej koj xaiv koj cov khoom.

Acid Ib puag ncig-Xaiv Polyester

Thaum nqa nyob rau hauv ib puag ncig uas muaj kua qaub-tshuaj nroj tsuag, roj teeb tsim, hlau tiav, ntawv mills- polyester yog qhov kev xaiv raug. Nylon, los ntawm qhov sib txawv, raug rhuav tshem los ntawm cov kua qaub. Mazzella Tuam txhab uas muag sau tseg tias nylon yuav raug degradation nyob rau hauv acids xws li me me mus rau tag nrho degradation, thaum polyester yog resistant rau ntau acids. NSRP Ship Production Rigging Guide ceeb toom tias hydrochloric thiab sulfuric acids, txawm nyob rau hauv daim ntawv diluted, tuaj yeem ua rau lub zog loj hauv nylon.

Alkali Environments - Xaiv Nylon

Thaum nqa hauv ib puag ncig nrog alkali raug-caustic tu cov kev daws teeb meem, kev tsim ua vaj tse, qee yam tshuaj ua haujlwm- nylon yog qhov kev xaiv zoo dua. Polyester puas tsuaj los ntawm alkalis, thaum nylon yog zoo tiv thaiv cov nyhuv ntawm alkalis. UNIROPE cov khoom siv fiber ntau qhia tau hais tias nylon muaj kev tiv thaiv zoo rau aldehydes, hydrocarbons, ethers, thiab qee cov alkalis.

Elongation Profiles: Stretch Nyob rau hauv Load

Qhov thib ob loj sib txawv ntawm polyester thiab nylon ca slings yog elongation - ntau npaum li cas lub sling stretches thaum loaded.

Liftex muab cov ntaub ntawv elongation hauv qab no:

Source: Liftex; UNIROPE

Polyester - Precision thiab ruaj khov

Polyester qhov qis elongation (3-4% ntawm qhov ntsuas load) ua rau nws qhov kev xaiv zoo tshaj plaws rau:

• Precise load positioning — tsawg kawg stretch txhais tau tias kev tswj zoo dua

• Low-headroom applications - tsawg qhov chaw ntsug noj thaum nqa

• Loads uas tsis tuaj yeem zam bouncing lossis viav vias

• Kev khiav hauj lwm yuav tsum tau ruaj khov, kwv yees nqa nqa

Lub teb chaws Ottoman Rigging muab ib qho piv txwv zoo: nqa 20-taw load nrog nylon sling uas stretches 10% ua rau kwv yees li ob taw ntawm elongation, thaum lub polyester sling yuav ncav cuag li xya ntiv tes. Hauv qhov chaw nruj heev, qhov sib txawv ntawd tseem ceeb.

Nylon - Shock Absorption thiab 'Kev zam txim'

Nylon's siab dua elongation (6-10% ntawm rated load) muab:

• Kev poob siab - cov khoom siv 'muab' ua ntej siv tag nrho lub zog

• Dynamic loading kam rau ua - zoo dua rau cov loads uas hloov thaum nqa

• Kev zam txim rau cov khoom siv tsis tu ncua - nylon yog kev zam txim ntau dua yog tias raug bunching thiab tso rau ntawm cov khoom siv tsis tu ncua

• Txhim kho tus neeg teb xov tooj kev nyab xeeb margin - lub stretch absorbs sudden loads

Raws li Liftex , nylon lub siab dua stretch ua raws li kev poob siab absorber, ua rau nws nyiam xaiv thaum loads yuav hloov los yog thaum dynamic loading yog ib qho kev txhawj xeeb.

Moisture thiab UV teb

Cov nyhuv dej noo

Nylon yog hygroscopic - nws absorbs noo noo los ntawm ib puag ncig. Raws li NSRP Ship Production Rigging Guide , nylon poob 15% ntawm nws lub zog thaum ntub . Liftex thiab CCOHS paub meej tias qhov no, nco ntsoov tias nylon slings tuaj yeem poob 10-15% muaj peev xwm thaum ntub. Lub zog yog rov qab los thaum ziab, tab sis lub sling yuav tsum tsis txhob siv ntawm lub peev xwm ntsuas thaum ntub.

Polyester tsis nqus dej thiab tsis muaj zog poob thaum ntub. Qhov no ua rau polyester zoo xaiv rau:

• Marine thiab offshore applications

• Sab nraum lifts nyob rau hauv ntub dej

• Ib puag ncig nrog cov av noo siab

CERTEX Denmark sau tseg tias Dyneema® tsis nqus dej, tsis zoo li lwm cov ntaub ntawv xws li polyester thiab polyamide .

UV Resistance

Polyester muaj superior UV tsis kam piv rau nylon. Nylon fibers raug cuam tshuam los ntawm UV rays thiab hnub ci, ua rau muaj zog ntau dhau lub sijhawm. Mazzella Tuam txhab uas muag ceeb toom hais tias ib puag ncig nyob rau hauv uas hluavtaws web slings yog tsis tu ncua raug rau ultra-violet lub teeb yuav cuam tshuam lub zog ntawm hluavtaws webbing nyob rau hauv sib txawv degrees, los ntawm me ntsis mus rau tag nrho cov degradation, thiab degradation yog cumulative. Rau cov hlua siv sab nraum zoov lossis hauv tshav ntuj ncaj qha, polyester yog qhov kev xaiv ruaj khov dua.

Kub txwv

Raws li EN 1492-1 , ob leeg polyester thiab nylon ca slings yog haum rau siv thiab cia nyob rau hauv qhov kub ntawm -40 ° C mus rau 100 ° C. Qhov no siv rau ob qho khoom siv. Txawm li cas los xij, lub teb chaws Ottoman Rigging sau tseg qhov sib txawv ntawm qhov kev siv tsis tu ncua: nylon tau ntsuas txog 194 ° F (90 ° C), thaum polyester raug ntsuas txog 180 ° F (82 ° C) - qis dua . Tshaj qhov kub no, cov ntaub ntawv pib poob lub zog.

Cov lus ceeb toom tseem ceeb : Hauv ib cheeb tsam tshuaj, qhov kub thiab txias yuav txawv, thiab cov lus qhia ntawm tus neeg muag khoom yuav tsum nrhiav.

Kev Taw Qhia: Yuav Qhia Li Cas Polyester los ntawm Nylon

ASME B30.9 thiab WSDA-WS-1 xav kom txhua lub web sling muaj ib daim ntawv txuas mus tas li hais txog cov khoom. Tsis tas li ntawd, polyester slings muaj ib txoj kab xiav cim woven rau hauv webbing - yog tias koj pom cov kab xiav, nws yog polyester . Nylon slings tsis muaj cov kab no. Cov txheej txheem xim-coding raws li EN 1492-1 siv rau ob qho khoom sib npaug.

Xaiv Phau Ntawv Qhia

Cov ntsiab lus thiab cov lus pom zoo

Polyester thiab nylon ca slings ob leeg muaj lub zog zoo thiab ua haujlwm ntev, tab sis lawv tsis hloov pauv . Xaiv cov khoom tsis raug rau koj ib puag ncig tuaj yeem ua rau muaj kev puas tsuaj zais thiab tsis ua haujlwm tam sim ntawd.

Cov ntsiab lus tseem ceeb:

1. Acid ib puag ncig = Polyester -nylon raug rhuav tshem los ntawm cov kua qaub

2. Alkali ib puag ncig = Nylon -polyester puas los ntawm alkalis

3. Precision lifts = Polyester -low elongation muab kev tswj

4. Dynamic loads = Nylon - siab dua stretch absorbs shocks

5. Sab nraum zoov / ntub dej = Polyester -UV-resistant thiab noo noo-resistant

6. Tshawb xyuas cov kab xiav -polyester slings muaj kab xiav kab; nylon tsis

7. Ib txwm txheeb xyuas qhov cim npe -ASME B30.9 yuav tsum muaj cov ntaub ntawv txheeb xyuas ntawm daim npav sling

Lishenflex yog tsim los ntawm polyester thiab nylon ca slings rau EN 1492-1 thiab ASME B30.9 cov qauv, nrog rau cov ntaub ntawv meej thiab cov cim xim muaj peev xwm. Peb muab kev taw qhia txog kev xaiv cov khoom raws li koj qhov tshwj xeeb ib puag ncig chemical thiab kev thov.

Yog tias koj xav tau kev pab txiav txim siab seb polyester lossis nylon yog qhov kev xaiv zoo rau koj qhov kev nqa nqa - lossis xav tau kev pab txheeb xyuas cov hlua uas tsim nyog rau qhov chaw muaj tshuaj lom neeg - thov xa email rau sales@lishenflex.com , thiab peb pab neeg ua haujlwm yuav muab kev txhawb nqa ib leeg.