UHMWPE yawanci yana ba da kusan 5 800 psi ƙarfin jurewa (ASTM D 638). Igiyar da ta kebe 9.5 mm da aka yi da ita tana da nauyi ƙasa da %85 idan aka kwatanta da karfe don aiki iri ɗaya.
≈ 7 min karatu – abin da za ka buɗe
- ✓ Kara rayuwar liner har sau 4 idan aka kwatanta da karfe a aikin ma'adinai.
- ✓ Rage nauyin igiya da kusan %85 idan aka kwatanta da wayoyin karfe don rage ƙoƙarin ɗauka da amfani da man fetur.
- ✓ Saurin zagaye na ƙira tare da takardun bayanan UHMWPE na iRopes da shawarwarin zaɓi da aka shirya a gaba.
- ✓ Bayyana UHMWPE mai dacewa da abinci wanda ke cika ƙa'idodin FDA 21 CFR 177.1520.
Mafi yawan injiniyoyi har yanzu suna zaɓar karfe ko HDPE na gama-gari don liners masu nauyi, suna tunanin nauyi ya nufin ƙarfi. Abin da suke rasa shi ne UHMWPE yana da kusan 5 800 psi ƙarfin jurewa (ASTM D 638), kuma igiyar 9.5 mm ta UHMWPE tana rage kimanin %85 na nauyin karfe, wanda ke rage ƙoƙarin girka da amfani da man fetur. A sassan da ke gaba za mu fayyace yadda wannan fa'ida ke haifar da ƙasa ƙasa, ƙara tasirin kaya, da takardar bayanan UHMWPE da za ka iya sauke yanzu.
Amfanin UHMWPE
Idan kana tambayar dalilin da ya sa UHMWPE ke yawan bayyana a cikin ƙayyadaddun fasaha, farawa ne da nauyin kwayoyin sa – sarkar polymer din suna da nauyi tsakanin 3 × 10⁶ da 6 × 10⁶ g mol⁻¹, wanda ke ba da haɗin gwiwar ƙarfi da sassauci mai ban mamaki. Saboda haka, UHMWPE yana jure tsagewa, yana da ƙaramin coefficient na friction, kuma yana aiki daga yanayin sanyi na cryogenic har zuwa –269 °C zuwa yanayin zafi mai yawa.
To, menene ake amfani da UHMWPE? Amsa tana kama da jerin abubuwan da kowace masana'anta ke buƙata wadda ke neman ɗorewa ba tare da ƙara nauyi ba. Ga wasu daga cikin mafi yawan aikace‑aikacen UHMWPE:
- Liners don hoppers da chutes – kare sassan karfe daga tsagewa da rage lokutan kulawa.
- Igiyoyi masu ƙarfi – ba da ƙarfin jurewa kusan 5 800 psi yayin da suke da nauyi kaɗan.
- Kayan aikin sarrafa abinci – cika ka'idodin FDA 21 CFR 177.1520 don aiki lafiya da tsabta‑in‑place.
- Kayayyakin hakowa da sarrafa manyan kaya – jure tasirin duwatsu da ma’adinai, suna ƙara tsawon rayuwa.
- Aikace‑aikacen teku – jurewa gishirin ruwa da ba da ƙaramin friction ga winches da davits.
- Kayan aikin likita – ana amfani da su a cikin prosthetics da kayan aikin tiyata inda dacewa da jiki ke da muhimmanci.
- Sistiman cryogenic – suna ci gaba da aiki a yanayin sanyi har zuwa ‑269 °C.
Saboda ƙimar nauyin molekularta mai girma sosai, UHMWPE yana samun matsayi mafi kyau a cikin aikace‑aikacen da low friction da ƙarfi sosai ba za a iya musanta ba – daga liners na hopper zuwa igiyoyin teku.
Fahimtar waɗannan aikace‑aikacen UHMWPE na taimaka maka daidaita ƙarfinsa da kalubalen da kake fuskanta a dakin aiki ko a filin aiki. A gaba za mu zurfafa cikin la’akari na ƙira liner, mu nuna yadda siffofin kayan ke fassaruwa zuwa ainihin hanyoyin liner na UHMWPE.
Liners na UHMWPE
Ta gina kan aikace‑aikacen da muka tattauna a baya, mataki na gaba shine juya waɗannan ƙarfafa kayan zuwa ainihin mafita liner. Lokacin zaɓin liners na UHMWPE, injiniyoyi suna mai da hankali kan manyan ginshiƙai uku na ƙira: ƙarfin da liner zai ɗauka, yanayin zafin, da ƙimar tsagewar kayan da ake jigilar.
Kundin ƙira za a iya takaita shi zuwa jerin dubawa mai sauƙi wanda ke jagorantar tsarin zaɓi tun daga matakin ƙira na farko.
- Kapasitin nauyi – ƙididdige nauyin tsayawa da ƙarfin tasiri na motsi da liner zai fuskanta.
- Zazzabi na aiki – tabbatar da cewa yanayin aiki yana ƙasa da mafi girman zazzabi na polymer (≈ 180 °C).
- Jure tsagewa – daidaita ƙarfi liner da matakin tsagewar kayan da ake jigilar.
Amsar tambayar da aka fi yi “Nawa ya kamata kauri liner na UHMWPE ya kasance?” ya dogara da waɗannan ginshiƙai uku. Don aikace‑aikacen da ke da tsagewa ƙasa, nauyi matsakaici kamar chutes na sarrafa abinci, kauri tsakanin 6 mm zuwa 8 mm yawanci ya ba da kariya daidai yayin da farashin kayan ke da sauƙi. Yanayin da ke fuskantar tasiri mai ƙarfi—hoppers na hakowa, dakunan dump‑truck, ko silos na karfe masu zafi—sun fi amfana da 10 mm zuwa 12 mm, wasu lokuta har zuwa 15 mm idan tasirin tasiri ya yi tsanani. Hanyar girka ma ma tasiri: weld‑washers ko steel retainers na iya tallafawa ƙananan kauri, yayin da panels da aka ɗaure da kayan aiki galibi suna buƙatar ƙarshen sama na jerin.
Koyaushe tabbatar da cewa kaurin da aka zaɓa ya dace da ƙimar amincin aikin da kuma cewa hanyar ɗaurewa ta dace da tsammanin rayuwar liner.
Da kauri da ƙa’idodin ƙira sun bayyana, mataki na gaba shine zurfafa cikin takardar bayanan fasaha wadda ke ƙayyade ƙarfin jurewa, tsawaita da sauran muhimman siffofin UHMWPE. Wannan bayanin zai taimaka maka daidaita aikin liner ga kowanne aikace‑aikacen da ke da buƙata.
Takardar Bayanan UHMWPE
Injiniyoyi suna dogara da takardar bayanan don juya ƙimar jure tsagewar polymer zuwa ƙayyadaddun bayanai masu auna. Tebur ɗin da ke ƙasa ya ƙunshi manyan siffofin da ke tallafa wa kowanne ƙirarren liner da igiya.
| Siffofi | Kimanin Al'ada |
|---|---|
| Yawan kashi | 0.93 g cm⁻³ |
| Karfin jurewa (72 °F) | ≈ 5 800 psi |
| Tsawaita a lokacin karya | ≈ 300 % |
| Zazzabin narkewa (range) | 138 – 142 °C |
Gwajin kayan zuwa ASTM D 638 yawanci yana nuna ≈ 5 800 psi ƙarfin jurewa da ≈ 300 % tsawaita don UHMWPE. Gwajin igiyar mu ta 9.5 mm da aka ƙirƙira ya tabbatar da ƙarfin karya mai girma tare da ƙaramin tsawaita don winches na teku da rigging; nema rahoton gwaji na iRopes don cikakken hanyar da sakamakon.
Gwajin Igiyar 9.5 mm
An yi gwajin igiya na musamman wanda ya tabbatar da ƙarfin karya mai girma ga diamita 9.5 mm tare da ƙaramin tsawaita yayin ɗaukar nauyi. Sakamakon yana goyon bayan yanayi masu nauyi, ƙasa‑tsawaita kamar rigging na teku da winches.
Ga injiniyoyin da ke buƙatar cikakken saitin ƙayyadaddun bayanai, cikakken takardar bayanan UHMWPE yana samuwa don saukewa daga shafin albarkatun fasaha na iRopes. Hakanan za ka iya karanta ribobin UHMWPE mafi girma don maye gurbin igiyar crane don ganin yadda kayan ke aiki a wasu yanayin nauyi mai girma. Samu PDF ɗin don samun cikakkun jadawali, shaidar takardun shaida, da shawarwarin ƙira da aka ba da.
Kuna neman mafita ta musamman ta UHMWPE?
A yanzu za ku gane yadda nauyin molekularta mai girma sosai na UHMWPE ke haifar da aikin jurewa da aka gani a gwaje‑gwajen kayan – kusan 5 800 psi tare da ƙarfi mai kyau – wanda ke sanya shi cikakke don manyan ayyukan liner da igiya. Ko kuna buƙatar shawara kan takamaiman aikace‑aikacen UHMWPE, kauri da ya dace don liners na UHMWPE, ko cikakken takardar bayanan UHMWPE don daidaita ƙirarku, ƙwararrunmu za su fassara waɗannan ƙayyadaddun zuwa mafita da ta dace da bukatunku.
A matsayinmu na masana’anta dake China mai ba da kayayyaki ga masu siyarwa a duk duniya, iRopes na ba da OEM da ODM maganganun igiya da liner na musamman tare da tabbacin inganci na ISO 9001, kariyar IP ta musamman, alamar alama da marufi mara alama. Hakanan muna ba da jigilar pallet kai tsaye don isarwa akan lokaci. Idan kuna son shawara ta musamman ko zurfafa cikin bayanan fasaha, cika fom ɗin tambaya da ke sama kuma za mu amsa da shirin da ya dace da ku.
