1. Muchidimbu
Nekukurumidza kusimudzira kweruzivo uye tekinoroji yekutaurirana, tambo dzemaziso, semutakuri wepakati wekufambiswa kwemashoko kwemazuva ano, dzine kuwedzera kwepamusoro zvinodiwa pakuita uye kunaka.Polybutylene terephthalate (PBT), se thermoplastic engineering plastic ine yakanakisa mashandiro akazara, inoita basa rakakosha mukugadzirwa kwetambo dzemaziso. PBT inoumbwa ne condensation polymerization ye dimethyl terephthalate (DMT) kana terephthalic acid (TPA) uye butanediol mushure me esterification. Ndiyo imwe yeashanu-chinangwa einjiniya mapurasitiki uye yakatanga kugadzirwa neGE uye yakagadziridzwa muma1970s. Kunyange zvazvo yakatanga kunonoka, yakakurumidza kukura. Nekuda kwekuita kwayo kwakazara kwekuita, kusimba kwakasimba uye kudhura kwekuita, inoshandiswa zvakanyanya mumidziyo yemagetsi, mota, kutaurirana, midziyo yemumba nemimwe minda. Kunyanya mukugadzira tambo dzemaziso, inonyanya kushandiswa mukugadzira optical fiber loose machubhu uye imhando inodiwa yemhando yepamusoro-inoshanda tambo zvinhu mune mbishi tambo dzeOptical.
PBT ndeye mukaka chena semi-pachena kune opaque semi-crystalline polyester ine yakanakisa kupisa kupisa uye kugadzikana kwekugadzirisa. Chimiro chayo chemolecular is [(CH₂)₄OOCC₆H₄COO]n. Kuenzaniswa nePET, ine mamwe mapoka maviri emethylene muzvikamu zveketani, ichipa iyo main molecular chain chimiro chehelical uye zvirinani kuchinjika. PBT haidziviriri kune yakasimba asidhi uye alkali yakasimba, asi inogona kuramba yakawanda organic solvents uye inoora pakupisa kwakanyanya. Nekuda kwehunhu hwayo hwakanakisa hwemuviri, kugadzikana kwemakemikari uye mashandiro ekugadzirisa, PBT yave yakanakira zvimiro zvemukati muindasitiri ye optical cable uye inoshandiswa zvakanyanya mumhando dzakasiyana dzePBT zvigadzirwa zvekutaurirana tambo uye optical tambo.
2. Hunhu hwePBT Materials
PBT inowanzoshandiswa muchimiro chemisanganiswa yakagadziridzwa. Nekuwedzera zvinodzoreredza murazvo, maajenti ekusimbisa uye dzimwe nzira dzekugadzirisa, kupikisa kwayo kupisa, kuvharwa kwemagetsi uye kugadzirisa kuchinjika kunogona kuvandudzwa. PBT ine yakakwira mechanical simba, kusimba kwakanaka uye kupfeka kuramba, uye inogona kunyatso chengetedza mafiber optical mukati meiyo optical tambo kubva mukukuvadzwa kwemagetsi kushushikana. Seimwe yezvakajairwa zvigadzirwa zvemagetsi tambo, PBT resin inovimbisa kuti optical tambo zvigadzirwa zvine yakanaka kuchinjika uye kugadzikana uku ichichengetedza simba rechimiro.
Zvichakadaro, ine kugadzikana kwakasimba kwemakemikari uye inogona kuramba midhiya yakasiyana-siyana inoparadza, ichiva nechokwadi chekushanda kwenguva refu kwakagadzikana kwetambo dzemaziso munzvimbo dzakaoma dzakadai sehunyoro uye munyu wekupfapfaidza. PBT zvinhu zvine yakanakisa kugadzikana kwekupisa uye inogona kuchengetedza yakagadzikana mashandiro kunyangwe munzvimbo dzekupisa kwepamusoro, zvichiita kuti ive yakakodzera kune optical cable application munzvimbo dzakasiyana tembiricha. Iyo ine yakanakisa kugadzirisa kuita uye inogona kuumbwa ne extrusion, jekiseni molding uye dzimwe nzira. Inokodzera optical cable maassemblies emhando dzakasiyana uye zvimiro uye ndeyepamusoro-inoshanda engineering plastiki inoshandiswa zvakanyanya mukugadzira tambo.
3. Kushandiswa kwePBT muOptical Cables
Mukuita kwekugadzira tambo ye optical, PBT inonyanya kushandiswa mukugadzirwa kwemachubhu akasununguka eoptical fibers. Simba rayo rakakwirira uye kuoma kunogona kutsigira zvinobudirira uye kudzivirira optical fibers, kudzivirira kukanganisa kunokonzerwa nezvinhu zvemuviri zvakadai sekukotama uye kutambanudza. Uye zvakare, PBT zvinhu zvine yakanakisa kupisa kupisa uye anti-kuchembera kuita, iyo inobatsira kusimudzira kugadzikana uye kuvimbika kwetambo dzemaziso panguva yekushanda kwenguva refu. Icho chimwe chezvakawanda zvePBT zvinhu zvinoshandiswa mumatambo optical parizvino.
PBT inowanzoshandiswa seyekunze sheath yetambo dzemaziso. Iyo sheath haingodi chete kuve neimwe mechanical simba kuti igadzirise shanduko yekunze kwezvakatipoteredza, asi zvakare inoda kuve neyakagwinya kupfeka kuramba, kemikari corrosion resistance uye UV kuchembera kuramba kuve nechokwadi chehupenyu hwesevhisi yetambo yemaziso panguva yekuradzika kwekunze, munzvimbo dzakanyorova kana dzeMarine. Iyo optical tambo sheath ine yakakwira zvinodiwa pakugadzirisa mashandiro uye kuchinjika kwezvakatipoteredza kwePBT, uye PBT resin inoratidza yakanaka application inoenderana.
Mune optical cable joint systems, PBT inogonawo kushandiswa kugadzira zvinhu zvakakosha zvakadai semabhokisi akabatanidzwa. Izvi zvikamu zvinofanirwa kusangana nezvinodiwa zvakasimba zvekuisa chisimbiso, kudzivirira mvura uye kusagadzikana kwemamiriro ekunze. PBT zvinhu, neayo akanakisa emuviri zvimiro uye kugadzikana kwechimiro, isarudzo yakanyatsokodzera uye inotamba yakakosha basa retsigiro muiyo optical cable raw material system.
4. Kugadzirisa Kuchengetedza
Pamberi pekugadzira jekiseni rekuumba, PBT inoda kuomeswa pa110 ℃ kusvika 120 ℃ kwemaawa angangoita matatu kubvisa hunyoro hwekushambadzira uye kudzivirira kuumbwa kwemabhuru kana brittleness panguva yekugadziriswa. Iyo tembiricha yekuumba inofanirwa kudzorwa pakati pe250 ℃ ne270 ℃, uye tembiricha yekuumbwa inokurudzirwa kuchengetedzwa pa50 ℃ kusvika 75 ℃. Nekuti tembiricha yegirazi yePBT inongori 22 ℃ uye mwero wekutonhora wekristaro unokurumidza, nguva yayo yekutonhora ipfupi. Munguva yekuumbwa kwejekiseni, zvinodikanwa kudzivirira tembiricha yenozzle kuti isanyanya kuderera, izvo zvinogona kuita kuti nzira yekuyerera ivharwe. Kana tembiricha yedhiramu ikadarika 275 ℃ kana iyo yakanyungudutswa ikagara kwenguva yakareba, inogona kukonzera kuderera kwemafuta uye kusvibiswa.
Inokurudzirwa kushandisa gedhi rakakura kune jekiseni. Iyo inopisa mumhanyi system haifanirwe kushandiswa. Iyo mold inofanira kuchengetedza yakanaka yekupedza simba. PBT sprue zvinhu zvine zvinodzosa moto kana girazi fiber reinforcement hazvikurudzirwe kuti zvishandiswe zvakare kudzivirira kushatisa kwekuita. Kana muchina wavharwa, dhiramu rinofanira kucheneswa nenguva ne PE kana PP zvinhu kudzivirira carbonization yezvinhu zvakasara. Aya maparamendi ekugadzirisa ane anoshanda anotungamira kukosha kune optical cable raw material vagadziri muhukuru-hukuru tambo yekugadzira zvinhu.
5. Zvakanakira Kushandisa
Kushandiswa kwePBT mumatambo optical kwakavandudza zvakanyanya kushanda kwese kwetambo dzemaziso. Simba rayo repamusoro uye kusimba kunosimudzira kuramba kwemhedzisiro uye kuneta kuramba kweiyo optical tambo, uye kuwedzera hupenyu hwayo hwesevhisi. Zvichakadaro, iyo yakanakisa processability yezvinhu zvePBT yakawedzera kugona kwekugadzira uye kudzikisa mutengo wekugadzira. Iyo yakanakisa anti-kuchembera uye yemakemikari corrosion kuramba kweiyo optical tambo inoita kuti irambe yakagadzikana kushanda kwenguva yakareba munzvimbo dzakaomarara, ichiwedzera zvakanyanya kuvimbika uye kuchengetedza kutenderera kwechigadzirwa.
Sechikamu chakakosha muzvigadzirwa zvemagetsi emagetsi, PBT resin inoita basa mune akawanda zvimiro zvinongedzo uye ndeimwe ye thermoplastic engineering mapurasitiki ayo vanogadzira tambo vanoisa pamberi pakusarudza zvinhu zvetambo.
6. Mhedziso uye Zvinotarisirwa
PBT yave chinhu chakakosha chakakosha mundima yekugadzira tambo yemagetsi nekuda kwekuita kwayo kwakatanhamara mumakanika zvivakwa, kugadzikana kwekupisa, kusagadzikana kwekuora uye processability. Mune ramangwana, sezvo indasitiri yekukurukurirana yemaziso ichiramba ichikwidziridzwa, zvinodiwa zvepamusoro zvichaiswa pamberi pekuita kwezvinhu. Indasitiri yePBT inofanirwa kuramba ichisimudzira hunyanzvi hwekuvandudza tekinoroji uye girinhi yekuchengetedza kuchengetedzwa kwezvakatipoteredza, ichiwedzera kuwedzera kushanda kwayo kwakazara uye kugona kugadzira. Paunenge uchisangana nezvinodiwa zvekushanda, kuderedza kushandiswa kwesimba uye mari yezvinhu zvichabatsira PBT kuita basa rakakosha mumatambo optical uye huwandu hwakawanda hweminda yekushandisa.
Nguva yekutumira: Jun-30-2025