Nco ntsoov tag nrho cov hnab woven manufacturers! Xaiv cov khoom raw tsis raug tuaj yeem ua rau muaj teeb meem ntau lawm thiab cov khoom tiav subpar. Niaj hnub no, peb yuav rhuav tshem cov ntaub ntawv tseem ceeb, PP thiab PE granules, npog lawv cov kev ua tau zoo, kev siv, thiab cov lus qhia xaiv. Txawm tias cov pib tshiab tuaj yeem xaiv cov khoom tsim nyog!
I. Cov Khoom Tseem Ceeb: PP Granules (Core Materials for Woven Bags)
PP yog cov khoom siv tseem ceeb rau cov hnab ntim khoom, muab cov txiaj ntsig zoo thiab ntau yam. Nws yog ib qho mus- xaiv rau cov kev xav tau tseem ceeb. Nws cov txiaj ntsig tseem ceeb yog qhov tseem ceeb: muaj zog rigidity thiab firmness, ua rau muaj zog, tsis yog - lub hnab ntim uas tsis yooj yim deform tom qab thauj khoom. Nws tuaj yeem tswj tau 5-20kg ntawm cov khoom thauj, zoo kawg nkaus rau kev ntim khoom txhua hnub. Nws qhov kub thiab txias kuj tseem txhim khu kev qha, ruaj khov ntawm -10℃mus rau 100 degree, thiab nws ruaj khov txawm tias nyob rau hauv tshav ntuj ncaj qha thiab hauv chav tsev kub. Ntxiv mus, nws zoo heev ua fluidity kom du thiab uninterrupted weaving, txhim kho lub hnab-ua efficiency. Ua ke nrog nws qhov ntom ntom (0.90-0.91g / cm³), nws sib zog dua PE hnab ntawm tib qhov loj, ua rau kev thauj mus los thiab siv yooj yim dua.
Nws yog haum rau ntau yam kev siv. Rau cov kev xav tau tseem ceeb xws li cov hnab ntim cov cement, cov hnab ntim khoom noj, cov hnab ntim khoom, thiab cov khoom ntim hauv tsev, nws yog qhov tseem ceeb. Rau kev siv txhua hnub, xws li cov hnab nplej, cov hnab ntim khoom xa tuaj, thiab cov hnab ntim khoom, nws yog tus nqi - zoo thiab ruaj khov. Rau cov dej noo- pov thawj lossis cov khoom lag luam customized, laminated woven hnab thiab xim - cov hnab ntim khoom, siv PP granules ua lub hauv paus kuj tsim nyog.
Thaum xaiv ib lub hnab woven, tsom mus rau lub melt flow index (MI). A MI ntawm 1.5-3.0 g/10min muaj qhov hloov tau zoo tshaj plaws. Tsawg dhau MI ua rau tawg thaum lub sij hawm kos duab, thaum siab dhau MI ua rau lub hnab tsis txaus. Ua ntej qhov tseem ceeb- cov hom phiaj qib; PP T30S muab tus nqi zoo tshaj plaws thiab tsim nyog rau cov qauv siv. Txhawm rau kom muaj peev xwm thauj khoom ntau ntxiv, xaiv PP F401 rau lub zog zoo dua. Rau cov hnab nyias nyias, PP Y1500 muaj cov duab zoo nkauj thiab cov khoom tiav zoo dua.
II. Cov Khoom Pab Txhawb / Hloov Kho Raw Khoom: PE Granules (Ntaus / Cov Qib Tshwj Xeeb)
PE granules feem ntau yog siv los them rau qhov tsis txaus ntawm PP, hais txog qhov tawv thiab hloov tau rau qhov chaw tshwj xeeb. Lawv tau muab faib ua HDPE (siab-density PE)) thiab LDPE (tsawg-density PE), nrog HDPE yog qhov kev xaiv tseem ceeb hauv kev lag luam hnab ntim khoom. Cov ntsiab lus tseem ceeb yog nws qhov tshwj xeeb toughness, cuam tshuam thiab puncture tsis kam, ua rau nws tsis tshua muaj kev tsim kua muag thaum tuav cov khoom ntse (xws li cov khoom siv kho vajtse) lossis cov khoom hnyav, nrog rau kev thauj khoom -cov kabmob muaj peev xwm tshaj 20kg; zoo heev qis-kub tsis kam, muaj peev xwm tiv taus qhov kub ntawm -60℃txog 80 degree, kom ntseeg tau tias nws yuav tsis tawg txawm nyob rau sab qaum teb lub caij ntuj no; siab yooj, ib tug mos mos, zoo lub hnab haum, thiab superior noo noo kuj piv rau PP, ua rau nws haum rau ntim cov khoom damp.
Nws yog adaptable heev rau tej xwm txheej. Rau qhov hnyav - lub luag haujlwm ntim, nws yog qhov kev xaiv zoo tshaj plaws: hnab ore, lub hnab ntim khoom loj, thiab cov hnab ntim khoom siv kho vajtse, tso siab rau PE lub zog los tiv thaiv kev tawg. Rau cov kev xav tau tshwj xeeb ib puag ncig, cov hnab siv nyob rau hauv qis - qhov kub thiab txias ntawm thaj chaw sab qaum teb, thiab ya raws- cov ntaub ntawv pov thawj lub hnab rau cov khoom hauv dej / txiv hmab txiv ntoo thiab zaub, PE tuaj yeem tiv taus cov teeb meem ib puag ncig. Rau kev sib npaug ntawm kev ua tau zoo, xav txog PP + PE cov hnab ntim khoom sib xyaw, uas sib txuas cov rigidity ntawm PP nrog lub toughness ntawm PE, muab ob qho tib si tiv thaiv ya raws thiab thauj khoom -cov kabmob muaj peev xwm, hloov mus rau cov kev xav tau nyuaj.
Thaum xaiv cov khoom siv, cov ntsiab lus tseem ceeb yog MI (Minimum Intake) thiab hom. Ua ntej HDPE (sib npaug rigidity thiab toughness), nrog MI tswj ntawm 0.5-2.0 g / 10 min. Rau qhov dav - lub hom phiaj cov hnab sib xyaw, xaiv HDPE 9001, uas yog sib xws nrog feem ntau cov hnab ntim khoom sib xyaw. Rau siab toughness, xaiv rau HDPE 6888, uas muaj zog compression kuj nyob rau hauv daim ntawv thov hnyav. Yog tias siv cov txheej txheem lamination yooj yim, LDPE 2426H muaj kev sib raug zoo dua, muab ob qho tib si zoo heev adhesion thiab ya raws.
III. Qhov sib txawv ntawm Core PP vs PE Granules (Quick Matching)
Hardness/Feel: PP yog firmer thiab nruj dua, tiv thaiv deformation thaum loaded; PE yog softer thiab saj zawg zog, muab zoo haum.
Cov txiaj ntsig tseem ceeb: PP ua tau zoo hauv kev nruj, tus nqi qis, thiab kev ua haujlwm siab, muab tus nqi zoo tshaj - kev ua tau zoo piv rau cov ntawv thov dav dav; PE yeej nyob rau hauv toughness, puncture resistance, low-kub tsis kam, ya raws, thiab durability, ua rau nws haum rau tshwj xeeb xav tau kev pab.
Cov Kev Xav Tau Zoo: Rau kev thauj khoom txhua hnub -cov kabmob thiab xav tau lub hnab ruaj khov, xaiv PP; rau kev thauj khoom hnyav / ntse, siv rau sab qaum teb lub caij ntuj no, thiab xav tau kev tiv thaiv dej noo, xaiv PE lossis PP + PE sib xyaw.
Tus nqi -Kev Ua Tau Zoo: PP muab tus nqi siab dua- kev ua tau zoo thiab yog qhov kev xaiv tseem ceeb; PE muab tus nqi nruab nrab- kev ua tau zoo, tsom mus rau kev daws qhov tsis muaj zog, yog li tsis txhob xaiv qhov muag tsis pom.
IV. Tswv yim rau Beginners kom tsis txhob Pitfalls
Ua ntej txiav txim siab Load Capacity: Rau 5-15kg ntawm kev xav tau ib txwm, xaiv PP T30S ncaj qha; rau ntau tshaj 15kg, hloov mus rau PP F401 lossis hloov mus rau PP + PE cov khoom sib xyaw.
Ib puag ncig tsim nyog: Nyob rau sab qaum teb lub caij ntuj no thiab qhov chaw ntub dej, ntxiv rau PE zaj duab xis txheej lossis siv HDPE ncaj qha. Cov khoom siv raw yog ua tib zoo xaiv los tiv thaiv lub hnab los ntawm nkig lossis ntub dej. Kev tswj hwm tus nqi yog tswj hwm: rau qhov dav dav - lub hom phiaj lub hnab, cov khoom siv PP txaus yog siv yam tsis muaj pov tseg; tsuas yog rau cov kev cai tshwj xeeb (siab toughness, tsawg-kub tsis kam) yog hloov PE siv, txuag nyiaj thaum ua raws li cov qauv.
