Hom hnab yas tuj
Cov khoom siv tseem ceeb rau kev tsim tawm txawv teb chaws yog polyethylene (PE), thaum cov khoom siv hauv tsev feem ntau yog polypropylene (PP), uas yog thermoplastic resin ua los ntawm polymerization ntawm ethylene. Hauv kev lag luam, nws kuj suav nrog copolymer ntawm ethylene thiab ib qho me me ntawm α-olefin. Polyethylene tsis muaj ntxhiab tsw, tsis muaj tshuaj lom, zoo li siv quav ciab, muaj qhov kub thiab txias tsis kam (tsawg Z, kev siv kub tuaj yeem ncav cuag -70 ~ 100 ℃), tshuaj lom neeg ruaj khov, thiab tuaj yeem tiv taus cov kua qaub thiab alkalis (tsis tiv taus oxidation. ) Ntuj acid), insoluble nyob rau hauv cov kuab tshuaj nyob rau hauv chav tsev kub, tsis tshua muaj dej nqus, zoo heev hluav taws xob rwb thaiv tsev zog; tab sis polyethylene yog qhov rhiab heev rau ib puag ncig kev ntxhov siab (tshuaj lom neeg thiab cov khoom siv hluav taws xob), thiab muaj cov cua sov tsis zoo. Cov khoom ntawm polyethylene sib txawv ntawm hom mus rau hom, feem ntau nyob ntawm tus qauv molecular thiab ntom. Cov txheej txheem ntau lawm tuaj yeem siv kom tau txais cov khoom sib txawv (0.91 ~ 0.96g / cm3). Polyethylene tuaj yeem ua tiav los ntawm cov txheej txheem thermoplastic molding (saib cov txheej txheem yas). Nws muaj ntau yam kev siv, feem ntau yog siv los ua cov yeeb yaj kiab, ntim khoom, kav dej, monofilaments, xov hlau thiab cables, khoom siv txhua hnub, thiab lwm yam, thiab tuaj yeem siv los ua cov khoom siv hluav taws xob ntau zaus rau TV, radars, thiab lwm yam. Nrog rau txoj kev loj hlob. ntawm petrochemical kev lag luam, polyethylene ntau lawm tau tsim sai heev, thiab cov zis tso nyiaj rau li 1/4 ntawm tag nrho cov zis ntawm plastics. Nyob rau hauv 1983, tag nrho cov peev xwm ntawm polyethylene nyob rau hauv lub ntiaj teb no yog 24.65Mt, thiab lub peev xwm ntawm installation nyob rau hauv kev tsim kho yog 3.16Mt.
Polypropylene (PP)
Ib qho thermoplastic resin ua los ntawm polymerization ntawm propylene. Muaj peb qhov kev teeb tsa ntawm isotactic, random thiab syndiotactic. Cov khoom lag luam yog tsim los ntawm isotactic. Polypropylene kuj suav nrog copolymer ntawm propylene thiab ib qho me me ntawm ethylene. Feem ntau yog cov khoom translucent tsis muaj xim, tsis muaj ntxhiab thiab tsis muaj tshuaj lom. Vim yog cov qauv tsis tu ncua thiab qib siab ntawm crystallization, lub melting point yog siab li 167 ℃, kub tsis kam, thiab cov khoom tuaj yeem ua kom tsis muaj menyuam yog nws qhov zoo tshaj plaws. Nrog rau qhov ntom ntawm 0.90g / cm3, nws yog lub teeb yuag dav dav siv yas. Corrosion kuj, tensile zog 30MPa, lub zog, rigidity thiab pob tshab yog zoo dua li polyethylene. Qhov tsis zoo yog tias nws muaj qhov tsis zoo ntawm qhov kub thiab txias tsis zoo thiab nws yooj yim rau lub hnub nyoog, tab sis nws tuaj yeem kov yeej los ntawm kev hloov kho thiab ntxiv cov tshuaj antioxidants.
Cov hnab ntim ntau feem ntau yog xim dawb lossis xim dawb, tsis muaj tshuaj lom thiab tsis qab, thiab feem ntau tsis muaj teeb meem rau tib neeg lub cev. Txawm hais tias lawv tau ua los ntawm ntau yam tshuaj yas, lawv yog cov phooj ywg ib puag ncig thiab muaj kev siv zog ntau dua;
Tonnage hnab muaj ntau yam kev siv, feem ntau yog siv rau kev ntim khoom thiab ntim khoom ntawm ntau yam khoom, thiab muaj ntau yam kev siv hauv kev lag luam;
Cov hnab yas tuj yog ua los ntawm polypropylene resin ua cov khoom siv tseem ceeb, uas yog extruded thiab ncab rau hauv cov xov paj tiaj tus, thiab tom qab ntawd woven thiab lub hnab ua.
Lub hnab yas sib xyaw ua ke yog ua los ntawm cov ntaub qhwv yas ua cov khoom siv hauv paus thiab sib xyaw ua ke los ntawm txoj kev casting.
Siv rau ntim cov hmoov nplej lossis cov khoom siv granular thiab cov khoom hloov tau yooj yim. Cov hnab yas sib xyaw ua ke tau muab faib ua ob-hauv-ib lub hnab thiab peb-hauv-ib lub hnab raws li cov khoom siv tseem ceeb.
Raws li txoj kev xaws, nws tuaj yeem muab faib ua cov hnab hauv qab nrog cov seams, cov hnab hauv qab nrog cov seams, ntxig hnab, thiab cov hnab ntim khoom sib txuas.
Raws li qhov dav dav ntawm lub hnab, nws tau muab faib ua 450, 500, 550, 600, 650, 700mm, thiab cov lus tshwj xeeb yog sib tham los ntawm tus neeg muag khoom thiab tus neeg yuav khoom.
Daim ntawv thov ntau ntawm cov hnab yas tuj
Ntim hnab
1. Muaj thiab ua liaj ua teb cov khoom ntim hnab
Vim yog cov khoom siv thiab cov teeb meem ntawm tus nqi, kuv lub teb chaws muaj 6 billion woven hnab siv rau cov cement ntim txhua xyoo, suav txog ntau dua 85% ntawm cov ntim cement ntau. Nrog rau kev txhim kho thiab kev siv cov hnab ntim khoom hloov tau yooj yim, cov hnab yas ntim tau dav siv hauv kev thauj mus los hauv hiav txwv thiab kev thauj mus los ntawm kev lag luam ntim khoom thiab cov khoom ua liaj ua teb. Hauv kev ntim khoom ua liaj ua teb, cov hnab yas tuj tau siv dav hauv cov khoom ntim hauv dej, ntim cov nqaij qaib pub, npog cov ntaub ntawv rau cov liaj teb, shading rau qoob loo cog, windproof, lawg-proof sheds thiab lwm yam ntaub ntawv. Cov khoom lag luam: tons ntawm pub hnab, tshuaj ton hnab, putty hmoov ton hnab, urea ton hnab, zaub mesh hnab, txiv hmab txiv ntoo mesh hnab, thiab lwm yam.
2. Lub hnab ntim khoom noj
Cov ntim khoom noj xws li mov, hmoov nplej, thiab lwm yam. maj mam txais cov hnab ntim. Cov hnab ntim khoom uas muaj xws li: tonbags of rice, tons of flour, and ton bag of corn.
3. Kev lag luam tourism thiab kev thauj mus los
Hauv kev lag luam kev lag luam, cov tsev pheeb suab ib ntus, parasols, ntau lub hnab mus txawv tebchaws, hnab mus txawv tebchaws, txhua yam muaj cov ntaub ntawv yas woven.Ntau yam tarpaulins tau dav siv los npog cov khoom siv rau kev thauj mus los thiab khaws cia, hloov cov paj rwb tarpaulins uas muaj kab mob mildew. Cov laj kab thiab cov nets hauv kev tsim kho kuj tau siv dav hauv cov ntaub ntawv yas. Cov feem ntau yog: logistics hnab, logistics ntim hnab, freight hnab, freight ntim hnab, thiab lwm yam.
4. Cov khoom siv engineering
Txij li thaum txoj kev loj hlob ntawm geotextiles nyob rau hauv lub 80s, daim ntawv thov teb ntawm yas woven fabrics tau dav, thiab lawv tau dav siv nyob rau hauv me me dej txuag, hluav taws xob fais fab, txoj kev loj, railways, seaports, mining siv, thiab tub rog engineering tsim. Nyob rau hauv cov haujlwm no, geosynthetics muaj filtration, Drainage, reinforcement, isolation, anti-seepage and other functions, yas geotextile yog ib hom hluavtaws geotextile.
