Nsalu Yopanda Ulusi wa Galasi

I. Zinthu Zazikulu Zamalonda: Kuphatikiza molondola zinthu zakuthupi ndi ubwino wa njira

Podalira ubwino wa ulusi wagalasi ndi chithandizo chaukadaulo cha spunlace ndi njira zophatikizika, mitundu iwiri ya zinthu motsatana imapanga machitidwe apadera ogwirira ntchito, ndipo nthawi yomweyo imadutsa malire a magwiridwe antchito a chinthu chimodzi.

(1) Nsalu yopanda ulusi wagalasi: Muyeso wa magwiridwe antchito a zinthu zopanda chilengedwe

Pogwiritsa ntchito ulusi wagalasi wopanda alkali ngati chinthu chimodzi chopangira, umapangidwa kudzera mu kufalikira kwafupikitsa komanso kutsekeka kwa madzi ndi mphamvu yamagetsi. Ngakhale kuti imasunga makhalidwe ofunikira a ulusi wagalasi, ilinso ndi ubwino wosinthasintha wa kapangidwe ka nsalu yosalukidwa:

Yolimba kutentha kwambiri, yoletsa moto komanso yoteteza: Maziko a chitetezo m'malo ovuta kwambiri

Kugwira ntchito mokhazikika pa kutentha kwakukulu: Malo osungunuka a ulusi wagalasi amaposa 800℃, ndipo chinthu chomalizidwacho chingagwiritsidwe ntchito kwa nthawi yayitali pamalo otentha a 260℃, ndi kukana kutentha kwakanthawi kochepa mpaka 300℃, kupitirira malire a kukana kutentha kwa ulusi wa polyester (kukana kutentha ≤150℃). Sichifuna kuwonjezera zinthu zoletsa moto, zokhala ndi index yocheperako ya okosijeni (LOI) ya ≥30%. Sizimayaka kapena kusungunuka kapena kudontha ikawotchedwa, kusunga umphumphu wa kapangidwe ka ulusi wosapangidwa ndi zinthu zachilengedwe. Ndi chinthu choteteza kwambiri pazochitika zotentha kwambiri.

Kugwira ntchito bwino kwa kutchinjiriza kwa mafakitale: Mwachilengedwe ili ndi mphamvu zabwino kwambiri zotchinjiriza magetsi, yokhala ndi mphamvu ya dielectric ya ≥20kV/mm. Ngakhale kutentha kwambiri kwa 130℃, mphamvu yake yotchinjiriza imakhalabe yoposa 70%, ndipo sikhudzidwa ndi chinyezi kapena mankhwala. Izi zimathetsa ululu wa zinthu zotchinjiriza zachilengedwe monga "kukalamba kutentha kwambiri ndi kulephera kwa chinyezi", ndipo ndizoyenera zofunikira kwambiri zamagetsi ndi magetsi.

2. Mphamvu yayikulu + kukana dzimbiri: Chitsimikizo cholimba m'malo ovuta

Makhalidwe abwino kwambiri a makina: Mphamvu yokoka ya ulusi imafika pa 3000MPa. Pambuyo pokhala spunlace ndi entanglement ya magawo atatu, mphamvu yosweka kwa nthawi yayitali ndi ≥1350N/50mm (ya 850g/㎡ specification), ndipo imakhala ndi kukhazikika kwabwino kwambiri. Kuchuluka kwa kusintha kwa zinthu m'malo onyowa, otentha, ozizira komanso otentha ndi ≤0.5%, kupitirira kwambiri kukhazikika kwa kapangidwe ka nsalu zachikhalidwe zopanda ulusi wa mankhwala.

Palibe zofooka pakukana dzimbiri ndi kukana ukalamba: Ili ndi kukana bwino kwa asidi ndi alkali ambiri (monga 10% sulfuric acid, 15% sodium hydroxide) ndi organic solvents. Kuchepa kwa mphamvu pambuyo ponyowa kwa masiku 30 ndi ≤10%. Kuphatikiza apo, zinthu zopanda chilengedwe zimatsimikiza kuti sizikalamba kapena kuwonongeka. Palibe kupunduka pambuyo pa zaka zisanu zowonekera panja, ndipo nthawi yake yogwira ntchito ndi 5 mpaka 8 kuposa zinthu za organic fiber.

3. Kapangidwe ka mabowo + kukonza kosinthasintha: Maziko osinthira ku zochitika zosiyanasiyana

Kapangidwe ka ntchito kakhoza kusinthidwa: Kapangidwe kamene kali ndi mapokoso atatu osalunjika komwe kamapangidwa ndi njira ya spunlace kali ndi mapokoso a 70%-80% ndipo mpweya umalowa mkati mwa 8-16m³/(m² · min). Kulondola kwa kusefa ndi kutenthetsa kumatha kusinthidwa mwa kusintha kulemera kwa gramu (450-2250g/㎡) ndi makulidwe (3-15mm), kukwaniritsa zosowa za zochitika zonse kuyambira kusefa molondola mpaka kutenthetsa kwakukulu.

Kusinthasintha kwabwino kwambiri pakukonza: Poyerekeza ndi nsalu yagalasi yopangidwa ndi singano, njira ya spunlace imapewa kuwonongeka kwa ulusi, zomwe zimapangitsa kuti chinthucho chizimveka chofewa. Chingathe kudulidwa mwachindunji, kusokedwa, ndikutenthedwa kuti chikhale cholimba, kukwaniritsa zofunikira zomangira za zinthu zooneka ngati zovuta ndikukulitsa mwayi wogwiritsa ntchito m'magawo monga mkati mwa magalimoto ndi zotetezera zida zapakhomo.

(2) Mat ya Polyester Composite ya Glass Fiber: Kupambana kwa Kuchita Zinthu Zawiri

Amapangidwa posakaniza ulusi wagalasi ndi ulusi wa polyester wopirira kutentha kwambiri kenako nkuuyika m'mimba ndikuwukonza, zomwe zimathandizira bwino vuto la chinthu chimodzi ndikukwaniritsa "mphamvu + kulimba + kusinthasintha".

1. Kuchita bwino kowonjezera popanda zofooka zilizonse

Kuthetsa vuto la chinthu chimodzi Ulusi wagalasi umapereka mphamvu zambiri komanso kukhazikika kwa mawonekedwe, pomwe ulusi wa polyester umapatsa zinthuzo kusinthasintha komanso kukana kung'ambika. Pambuyo posakanikirana, chinthucho sichimangothetsa mavuto a "kusatambasuka komanso kung'ambika mosavuta" kwa mphasa yagalasi, komanso chimathetsa zofooka za "kusintha kwa kutentha kwambiri komanso mphamvu yosakwanira" ya mphasa ya polyester. Mphamvu yokana kung'ambika ndi 40% kuposa ya mphasa yagalasi yoyera. Kutalika kwake pakusweka kumatha kufika kuwirikiza katatu kuposa mphasa yagalasi yoyera.

Kusintha kwa magwiridwe antchito: Ulusi umalumikizidwa mwamphamvu ndipo umasunga kusinthasintha kwina. Kuchuluka kwa kulowa kwa utomoni kumakhala kokwera ndi 30% kuposa kwa mphasa yoyera ya ulusi wagalasi. Mu njira monga kupanga FRP, kuchuluka kwa zigawo kumatha kuchepetsedwa, ndipo magwiridwe antchito opanga amatha kuwonjezeredwa ndi oposa 25%. Nthawi yomweyo, kusalala kwa pamwamba pa chinthu chomalizidwa kumawonjezeka kwambiri, kukwaniritsa mawonekedwe ndi magwiridwe antchito a zinthu zapamwamba kwambiri.

2. Kukana nyengo konse + kukonza ndalama

Kulekerera chilengedwe: Popeza imalandira kukana kutentha kwambiri (kukana kutentha kwa nthawi yayitali mpaka 180℃) kwa ulusi wagalasi komanso kukana dzimbiri kwa ulusi wa polyester, imatha kupirira kuwala kwa ultraviolet, kukokoloka kwa mvula ndi kusinthasintha kwa kutentha m'malo akunja monga misewu ndi milatho, yokhala ndi moyo wopitilira zaka 15. Kuphatikiza apo, kuchuluka kwake kwa madzi ndi ≤0.5%, ndipo siipanga kapena kutaya mphamvu m'malo ozizira, zomwe zimakwaniritsa zofunikira za nthawi yayitali zamapulojekiti omanga.

Ubwino wa magwiridwe antchito a mtengo ndi wofunika kwambiri: Kudzera mu kuchuluka koyenera kwa ulusi wa polyester, mtengo wonse umachepetsedwa ndi 20%-30% poyerekeza ndi mphasa yagalasi yoyera pomwe ikutsimikizira magwiridwe antchito apakati. Nthawi yomweyo, kuchuluka kwa kutayika kwa kupanga zinthu zambiri kumakhala kochepera 3%, komwe kumakhala kotsika kwambiri kuposa kutayika kwa zinthu zagalasi yoyera (nthawi zambiri 5%-8%), zomwe zimapangitsa kuti ikhale yankho labwino kwambiri pazinthu zogwiritsidwa ntchito monga zomangamanga ndi mafakitale.

II. Magawo Ofunikira Ogwiritsira Ntchito: Kufotokozera kwathunthu zochitika kuyambira pauinjiniya woyambira mpaka kupanga zinthu zapamwamba

Potengera ubwino wawo wosiyanasiyana wa magwiridwe antchito, mitundu iwiri ya zinthuzi yapanga phindu losasinthika m'magawo osiyanasiyana, mogwirizana ndi zofunikira zazikulu za zochitika zosiyanasiyana:

1. Ntchito yomanga ndi zomangamanga: Zipangizo zofunika kwambiri pa ntchito za nthawi yayitali

Nsalu yagalasi yopanda ulusi: Monga zinthu zotetezera kutentha zomwe zimagwiritsidwa ntchito popanga mbale zachitsulo zamitundu yosiyanasiyana komanso zotetezera kutentha kwa mapaipi otentha, mphamvu yake yotetezera kutentha ndi 30% kuposa ubweya wa miyala wachikhalidwe, ndipo ndi yosavuta kuyiyika ndipo siyimayambitsa kuipitsa fumbi. Pansi pa mafakitale amagetsi, imatha kuchita ntchito ziwiri zotetezera kutentha ndi kuteteza chinyezi, kuonetsetsa kuti nyumba ya fakitaleyo ili ndi chitetezo chamagetsi.

Mpando wa polyester wopangidwa ndi ulusi wagalasi: Umagwiritsidwa ntchito kwambiri ngati cholimbitsa choletsa ming'alu pamwamba pa misewu yayikulu, misewu ya ndege, ndi Bridges, ukhoza kuletsa ming'alu yocheperako ya panjira ndikuletsa kulowa kwa madzi, kukulitsa moyo wa ntchito ya polojekitiyi ndi zaka 5 mpaka 8 ndikuchepetsa ndalama zokonzera pambuyo pake ndi zoposa 40%. Umagwirizananso ndi njira yopangira pulasitiki yolimbikitsidwa ndi fiberglass ndipo ungagwiritsidwe ntchito ngati maziko olimbikitsira zinthu monga kumanga makoma a nsalu ndi ma skylights, kukulitsa mphamvu ya kapangidwe ndi kukana mphamvu ya mphepo.

2. Magawo oteteza mafakitale ndi chilengedwe: Mayankho ofunikira kwambiri pamavuto ogwirira ntchito

Nsalu yagalasi yopanda ulusi: Mu kusefa mpweya wofewa kwambiri m'mafakitale monga zitsulo, ukadaulo wa mankhwala, ndi kuwotcha, imatha kusunga fumbi losalala bwino pamalo otentha a 260℃, ndi kulondola kwa kusefa kwa 0.5μm, mphamvu yochotsa fumbi ya ≥99.5%, komanso moyo wautumiki wa miyezi 6 mpaka 12, womwe ndi woposa kawiri kuposa zinthu zosefera za PPS. Monga zinthu zamkati mwa zotsekera magalimoto ndi njinga zamoto, ili ndi mphamvu yodabwitsa yoyamwa ndi kuchepetsa phokoso, zomwe zingachepetse phokoso la injini ndi 15-20dB.

Mpando wa polyester wopangidwa ndi ulusi wagalasi: Umagwiritsidwa ntchito potseka ndi kutseka zinthu za mafakitale zomwe sizingawonongeke, kuphatikiza mphamvu ya ulusi wagalasi ndi kusinthasintha kwa ulusi wa polyester. Umatha kupirira kukangana kwakukulu panthawi yogwiritsa ntchito zida, ndipo kuchuluka kwake kowonongeka ndi kotsika ndi 50% kuposa kwa mphanda wagalasi wopangidwa ndi ulusi. Pankhani yokonza zimbudzi, monga gawo lonyamulira zinthu za biofilm, kapangidwe kake kokhala ndi mabowo ndi kukana dzimbiri kumatha kukulitsa kumatirira kwa tizilombo toyambitsa matenda komanso kukhazikika kwa dongosolo.

3. Zida zamagetsi ndi zamagetsi: Chimake cha chitetezo pazochitika zolondola

Nsalu yagalasi yopanda ulusi: Monga chotetezera kutentha ndi chokulunga chozungulira cha ma transformer ndi ma mota, imasunga magwiridwe antchito okhazikika a chotetezera kutentha pa kutentha kwakukulu kwa 130℃ ndipo ilibe zinthu zosinthasintha, zomwe zimakwaniritsa miyezo yoyera yamakampani amagetsi. Chotetezera kutentha cha mapanelo a pakhoma a zida zapakhomo monga ma uvuni a microwave ndi makina otsukira mbale chingalepheretse kutentha kwamkati kuti kusamutsidwe kunja, zomwe zimapangitsa kuti chitetezo cha kugwiritsa ntchito zinthuzo chikhale chotetezeka.

Mpando wa polyester wopangidwa ndi ulusi wagalasi: Pambuyo polowetsedwa ndi kutsukidwa ndi utomoni, ungagwiritsidwe ntchito ngati maziko olimbikitsira ma board osindikizidwa, okhala ndi kutchinjiriza komanso mphamvu ya makina. Kuphatikiza apo, susinthasintha nthawi yokonza, zomwe zimapangitsa kuti ukhale woyenera kupanga zida zamagetsi molondola. M'mabatire a magalimoto atsopano amphamvu, monga chotetezera kutentha komanso choletsa moto, chimatha kuletsa kufalikira kwa kutentha ndikuwonjezera chitetezo cha dongosolo la batri.

4. Mayendedwe ndi magawo apadera: Thandizo la magwiridwe antchito a zida zapamwamba

Nsalu yagalasi yopanda ulusi: M'kati mwa magalimoto ndi sitima, imagwiritsidwa ntchito ngati chotetezera phokoso ndi zinthu zotetezera kutentha, zomwe zimatha kuchepetsa phokoso mkati mwa galimoto ndi 8-12dB, komanso nthawi yomweyo kupirira kutentha kwambiri m'chipinda cha injini. M'munda wa ndege, zophimba moto zomwe zimagwiritsidwa ntchito mkati mwa nyumba sizitulutsa mpweya woopsa zikawotchedwa ndipo zimagwirizana ndi miyezo yapadziko lonse yachitetezo cha ndege.

Mpando wa polyester wopangidwa ndi ulusi wagalasi: Umagwiritsidwa ntchito ngati maziko a pultrusion a ma shipbulls apulasitiki olimbikitsidwa ndi fiberglass ndi matupi a magalimoto. Ulusiwo sutha kusuntha kapena kusintha, zomwe zingachepetse kuchuluka kwa zigawo ndikuwonjezera mphamvu yopangira ndi 30%. Pakupanga masamba a wind turbine, monga chinthu cholimbitsa zigawo, chimaphatikiza mphamvu zambiri komanso kukana kutopa, kukwaniritsa zofunikira pakugwira ntchito kwakunja kwa nthawi yayitali kwa zida zopangira mphamvu za mphepo.

Zokhudza Yongdeli: Akatswiri opanga zinthu zoyambira ulusi wagalasi

Changshu Yongdeli Spunlace Nonwoven Fabric Co., Ltd. ili ndi mzere wopangira wophatikizana wa kupota ulusi wagalasi, kupanga spunlace ndi kukonza zinthu zosiyanasiyana, ndipo ikhoza kupereka zinthu zotsatirazi zomwe zasinthidwa:

Nsalu yopanda ulusi wagalasi: Kulemera 150-2200g/㎡, m'lifupi 0.2-3.2m, imathandizira pambuyo pa chithandizo monga kuyaka ndi kuyika kalendala, yoyenera zochitika zosiyanasiyana kuphatikizapo kusunga kutentha, kusefa ndi kutenthetsa.

Mpando wa polyester wopangidwa ndi ulusi wagalasi: Kuchuluka kwa ulusi wa polyester wosinthika kuyambira 10% mpaka 50%, mphamvu yokoka ≥1500N/5cm, kumathandiza kusintha kwa resin impregnation, yoyenera kulimbitsa zomangamanga, kupanga zinthu zophatikizidwa ndi zina zofunika.

Ngati mukufuna kudziwa za zitsanzo za malonda kapena mayankho osinthidwa, chonde musazengereze kulankhulana nafe.