Polyester vs. Nylon Flat Slings: Juriya na Kemikal da Bayanan Tsawaitawa

Kamfanin sinadari yana buƙatar majajjawa lebur don ɗaga abubuwan ƙarfe na bakin karfe a cikin muhallin da hayaƙin acid yake. Wurin gyaran ruwa yana buƙatar majajjawa wanda zai iya ɗaukar mai da ruwan teku. Duka ayyukan biyu suna buƙatar majajjawa lebur na roba-amma zaɓin kayan da ya dace ya bambanta ga kowane.

Lishenflex ya kasance masana'antar roba lebur majajjawa sama da shekaru ashirin, kuma tambaya daya da muke ji akai-akai ita ce: Polyester ko nailan-wanne ne mafi kyawun zabi? Amsar ba ta da sauƙi. Bisa ga shigarwar Wikipedia akan polyester , polyester wani nau'i ne na polymers da aka kimanta don dorewa, juriya na sinadarai, da ƙananan danshi. Wikipedia akan nailan Shigar da yayi bayanin cewa ana daraja nailan don ƙarfinsa, elasticity, da juriyar abrasion. Dukansu kayan suna yin kyawawan majajjawa masu ɗagawa, amma ba za su iya canzawa ba . A cewar Cibiyar Kiwon Lafiya da Tsaro ta Kanada (CCOHS) , slings nailan sun lalace ta hanyar acid amma suna tsayayya da alkalis, yayin da slings polyester ya lalace ta hanyar alkalis amma suna tsayayya da acid. Makullin shine daidaita kayan da yanayin.

Juriya na Sinadarai: Mahimmancin Safety Bambancin

Mafi mahimmancin bambanci tsakanin polyester da nailan lebur majajjawa shine daidaituwar sinadarai . Zaɓin abu mara kyau don yanayin sinadarai na iya haifar da gazawar bala'i-sau da yawa ba tare da faɗakarwa ba.

Dangane da jagorar kwatancen kayan Liftex , mahimman bambance-bambancen juriya na sinadarai sune :

Source: Liftex; CCOHS; CERTEX Denmark

CCOHS ya tabbatar da cewa nailan yana fuskantar lalacewa a cikin acid daga babu ko ɗaya zuwa ƙazantar ƙazanta, yayin da polyester yana da juriya ga yawancin acid amma alkalis ya lalace. CERTEX Denmark ta ƙara da cewa mafita na acid ko alkalis waɗanda ba su da lahani a ƙananan ƙima na iya zama mai da hankali ta hanyar ƙaya da haifar da lalacewa.

Gargadi mai mahimmanci na aminci : Lalacewar sinadari ga majajjawa roba galibi ba a ganuwa . Zaɓuɓɓukan suna raunana a ciki yayin da majajjawa ke bayyana al'ada a saman. A cewar Empire Rigging , lalacewar sinadarai sau da yawa ba a iya gani - filaye suna raunana a ciki yayin da majajjawa yayi kama da daidai a waje, wanda shine dalilin da ya sa sanin yanayin ku yana da mahimmanci kafin ku zaɓi kayan ku.

Muhallin Acid-Zabi Polyester

Lokacin ɗagawa a cikin mahalli tare da bayyanar acid - tsire-tsire masu sinadarai, masana'antar baturi, ƙare ƙarfe, injin takarda - polyester shine zaɓin daidai. Nailan, da bambanci, ana lalata shi da acid. Kamfanonin Mazzella sun lura cewa nailan yana ƙarƙashin lalacewa a cikin acid waɗanda ke kama daga kaɗan zuwa ƙazanta duka, yayin da polyester ke da juriya ga yawancin acid. Jagoran Samar da Jirgin Ruwa na NSRP yayi kashedin cewa hydrochloric da acid sulfuric, ko da a cikin nau'i mai narkewa, na iya haifar da babban asarar ƙarfi a nailan.

Muhalli na Alkali—Zabi Nailan

Lokacin ɗagawa a cikin mahalli tare da fallasa alkali-caustic tsaftacewa mafita, kankare masana'anta, wasu sinadaran sarrafa- nailan ne mafi zabi. Polyester yana lalacewa ta hanyar alkalis, yayin da nailan ba shi da kariya daga tasirin alkalis. Jagorar kaddarorin fiber na UNIROPE ya lura cewa nailan yana da juriya mai kyau ga aldehydes, hydrocarbons, ethers, da wasu alkalis.

Bayanan Tsawaitawa: Miƙewa Karkashin Load

Babban bambanci na biyu tsakanin polyester da nailan lebur slings shine elongation - nawa majajjawa ke shimfiɗa lokacin da aka ɗora.

Liftex yana ba da bayanan elongation masu zuwa:

Source: Liftex; UNIROPE

Polyester - Madaidaici da Kwanciyar hankali

Ƙananan elongation na Polyester (3-4% a rating load) ya sa ya zama zaɓin da aka fi so don:

• Madaidaicin matsayi na kaya - ƙaramar shimfiɗa yana nufin mafi kyawun sarrafawa

• Aikace-aikacen ƙananan ɗakin kai — ƙarancin sarari da ake cinyewa yayin ɗagawa

• Nauyin da ba zai iya jurewa bouncing ko lilo ba

• Ayyukan da ke buƙatar tsayayye, ɗagawa da za a iya faɗi

Empire Rigging yana ba da misali mai amfani: ɗaga kaya mai ƙafa 20 tare da majajjawar nailan wanda ke shimfiɗa 10% sakamakon kusan ƙafa biyu na elongation, yayin da majajjawar polyester zai shimfiɗa kusan inci bakwai kawai. A cikin matsatsun sararin samaniya, wannan bambancin yana da mahimmanci.

Nylon-Shan Girgizawa da 'Gafara'

Nylon's high elongation (6-10% a rated load) yana ba da:

• Shock absorption — abun da ' ke bayarwa' kafin ɗaukar cikakken ƙarfi

• Haƙurin lodi mai ƙarfi -mafi kyau ga lodin da ke motsawa yayin ɗagawa

• Gafartawa akan kayan aikin da ba na ka'ida ba - nailan ya fi gafartawa idan an sa shi a cikin bunching da sanyawa akan sifofin kayan aiki marasa tsari.

• Ingantattun gefen aminci na ma'aikaci - shimfidawa yana ɗaukar kaya kwatsam

A cewar Liftex , mafi girman nailan yana aiki azaman mai ɗaukar girgiza, yana mai da shi zaɓin da aka fi so lokacin da kaya na iya canzawa ko lokacin daɗaɗɗen kaya yana da damuwa.

Danshi da Amsa UV

Tasirin Danshi

Nailan hygroscopic ne - yana sha da danshi daga muhalli. Bisa ga NSRP Ship Production Rigging Guide , nailan ya rasa 15% na ƙarfinsa lokacin da rigar . Liftex da CCOHS sun tabbatar da wannan, lura da cewa slings nailan na iya rasa damar 10-15% lokacin da rigar. Ana dawo da ƙarfi a lokacin bushewa, amma bai kamata a yi amfani da majajjawa a iya ƙididdigewa lokacin da aka jika ba.

Polyester baya sha ruwa kuma baya shan wahala lokacin da aka jika. Wannan ya sa polyester ya zama zaɓin da aka fi so don:

• Aikace-aikacen ruwa da na waje

• Abubuwan ɗagawa na waje a cikin yanayin jika

• Muhalli tare da babban zafi

CERTEX Denmark ta lura cewa Dyneema® baya sha ruwa, sabanin sauran kayan kamar polyester da polyamide.

Resistance UV

Polyester yana ba da mafi girman juriya na UV idan aka kwatanta da nailan. UV haskoki da hasken rana suna shafar zaruruwan nailan, wanda ke haifar da asarar ƙarfi da yawa akan lokaci. Kamfanonin Mazzella sun yi gargaɗin cewa yanayin da majajjawar yanar gizo na roba ke ci gaba da fallasa zuwa hasken ultra-violet na iya rinjayar ƙarfin yanar gizo na roba a cikin nau'i daban-daban, daga kadan zuwa duka ƙasƙanci, kuma wannan lalata yana tarawa. Don majajjawa da ake amfani da su a waje ko a cikin hasken rana kai tsaye, polyester shine zaɓi mafi ɗorewa.

Iyakan Zazzabi

A karkashin EN 1492-1 polyester da nailan lebur slings sun dace don amfani da ajiya a cikin kewayon zafin jiki -40 ° C zuwa 100 ° C. Wannan ya shafi duka kayan biyu. Koyaya, Empire Rigging yana lura da bambanci mai amfani a cikin iyakoki na ci gaba da amfani: ana ƙididdige nailan har zuwa 194°F (90°C), yayin da aka ƙididdige polyester har zuwa 180°F (82°C) — kaɗan kaɗan. Sama da waɗannan yanayin zafi, kayan sun fara rasa ƙarfi.

Bayani mai mahimmanci : A cikin yanayin sinadarai, waɗannan jeri na zafin jiki na iya bambanta, kuma ya kamata a nemi shawarar mai kaya.

Identification: Yadda za a Gaya Polyester daga Nylon

ASME B30.9 da WSDA-WS-1 suna buƙatar kowane majajjawa na yanar gizo yana da alamar maƙalla ta dindindin mai bayyana kayan. Bugu da ƙari, slings na polyester suna da layin ganewa shuɗi wanda aka saka a cikin gidan yanar gizon - idan kun ga layin blue, shi ne polyester . Majajjawa nailan ba su da wannan layin tantancewa. Tsarin launi na EN 1492-1 ya shafi duka kayan biyu daidai.

Jagoran Zaɓi

Takaitawa da Shawarwari Na Aiki

Polyester da nailan lebur slings duka suna ba da kyakkyawan ƙarfi da dorewa, amma ba su canzawa . Zaɓin kayan da ba daidai ba don yanayin ku na iya haifar da ɓoyayyiyar ɓarna da gazawar kwatsam.

Mabuɗin ɗauka:

1. Muhallin Acid = Polyester - nailan yana lalata shi da acid

2. Yanayin Alkali = Nailan — alkalis ya lalata polyester

3. Madaidaicin ɗagawa = Polyester - ƙananan haɓaka yana ba da iko

4. Na'ura mai ƙarfi = Nailan - tsayin daka yana ɗaukar girgiza

5. Waje/rigar = Polyester -UV mai jurewa da danshi

6. Duba layin shuɗi — slings polyester suna da layin gano shuɗi; nailan ba

7. Koyaushe tabbatar da alamar -ASME B30.9 yana buƙatar gano kayan abu akan alamar majajjawa

Lishenflex yana kera duka polyester da nailan lebur slings zuwa EN 1492-1 da ka'idodin ASME B30.9, tare da bayyananniyar gano kayan abu da alamun iya aiki masu launi. Muna ba da jagora kan zaɓin abu dangane da takamaiman yanayin sinadarai da buƙatun aikace-aikace.

Idan kuna buƙatar taimako don tantance ko polyester ko nailan shine zaɓin da ya dace don aikin ɗagawa ku-ko buƙatar taimako gano maƙiyin da ya dace don yanayin aiki mai sinadarai-don Allah a aika imel zuwa sales@lishenflex.com , kuma ƙungiyarmu ta fasaha za ta ba da goyon baya ɗaya-on-daya.