Kodi mukudziwa zambiri za zingwe za polyurethane? (chingwe cha TPU)

Chingwe cha Polyurethanes amatanthauza zingwe zomwe zimagwiritsa ntchito zinthu za polyurethane ngati chotetezera kutentha kapena chivundikiro. Kukana kwawo kwambiri kumatanthauza kukana kwakukulu kwa chivundikiro cha chingwe ndi gawo lotetezera kutentha.

 

Zipangizo za polyurethane zomwe zimagwiritsidwa ntchito mu zingwe nthawi zambiri zimatchedwa TPU, yomwe ndi rabara ya polyurethane elastomer ya thermoplastic. Zimagawidwa makamaka m'mitundu ya polyester ndi polyether, yokhala ndi kuuma (60HA-85HD), yosatha, yosatha mafuta, yowonekera bwino komanso yotanuka. TPU sikuti imangokhala ndi mphamvu zabwino kwambiri zosatha, zosatha, zosatha, zolimba komanso zokalamba, komanso ndi zinthu zokhwima zosamalira chilengedwe.

 

Lero, Lansheng Cable ikuphunzitsani zinthu 8 zazikulu komanso madera ogwiritsira ntchito chingwe cha polyurethane.

 

Zinthu 8 zazikulu：

1. Kukana kuvala

 

Pamene chingwecho nthawi zambiri chimagwiritsidwa ntchito ndi makina monga kukangana, kukanda ndi kupukuta chikagwiritsidwa ntchito, chidzapangitsa kuti pamwamba pake paziwonongeke pang'onopang'ono, kotero kuti kutha kugwiritsidwa ntchito kwa zinthuzo ndikofunikira kwambiri.

 

Zipangizo zopangira pulasitiki za TPU zimakhala ndi mphamvu yotha kutha ndipo sizitha kutha kutha kuposa zingwe zachilengedwe zokhala ndi chivundikiro cha rabara. Ndi chimodzi mwa zipangizo zodziwika bwino zopangira zinthu zosatha kutha.

 

2.Kugwira ntchito mwamphamvu

 

Mphamvu yokoka ya zingwe za polyurethane ndi 38MPa, ndipo mphamvu yokoka ya zingwe wamba za mphira (imodzi mwa zingwe zodziwika kwambiri pamsika) ndi 8-12MPa yokha.

 

Chingwe chikagwiritsidwa ntchito pamalo omwe pali kukakamizidwa kugwira ntchito, chigoba cha chingwe chokhala ndi chipolopolo cha rabara chimakhala ndi mphamvu yofooka yokoka, ndipo pakati pake pamasweka mosavuta mutagwidwa ndi mphamvu yakunja. Kukana kwabwino kwambiri kokoka kwa chigoba cha chingwe cha polyurethane ndi kutchinjiriza kumathandiza kwambiri kuteteza pakati pa waya, zomwe zimapangitsa kuti ikhale yolimba komanso yolimba.

 

3. Kugwira ntchito mopanda mphamvu

 

Mphamvu ya kung'ambika ndi kuthekera kwa nsaluyo kupirira kung'ambika. Kawirikawiri, TPU imakhala ndi mphamvu yolimba kwambiri yolimbana ndi kung'ambika, ndipo mphamvu ya kung'ambika ndi yabwino kwambiri poyerekeza ndi rabara ndi pulasitiki zomwe zimagwiritsidwa ntchito nthawi zambiri.

 

4. Kupotoza magwiridwe antchito

 

Zingwe zambiri zapulasitiki (monga RVV) zimatha kusweka mosavuta chifukwa cha kupsinjika mobwerezabwereza. Zingwe za polyurethane zimatha kukhalabe zolimba kwambiri pakupindika m'malo osiyanasiyana, zomwe zimapangitsa kuti zikhale chimodzi mwazisankho zabwino kwambiri pamalo opindika mobwerezabwereza.

 

5. Kukana kwa hydrolysis

 

Zingwe za polyurethane zimakhala ndi kukana bwino madzi chifukwa cha kukhuthala, ndipo sizidzakumana ndi hydrolysis mkati mwa chaka chimodzi kapena ziwiri, makamaka polyether series ndi yabwino.

 

6. Kukana kutentha kwambiri ndi kukana okosijeni

 

Kawirikawiri, zipangizo zopangira pulasitiki zimasungunuka mosavuta m'malo opitilira 70℃ kwa nthawi yayitali, ndipo TPU ili ndi mphamvu yabwino yolimbana ndi ma antioxidants; nthawi zambiri, kukana kutentha kwa TPU kumatha kufika 120℃.

 

7. Kukana mafuta ndi mphamvu zotsutsana ndi mankhwala

 

TPU ndi chinthu chopangidwa ndi polima cha polar kwambiri chomwe chili ndi mphamvu yochepa kwambiri poyerekeza ndi mafuta amchere omwe si a polar ndipo sichiwononga kwambiri mafuta amafuta (monga mafuta a palafini, mafuta a petulo) ndi mafuta a makina (monga mafuta a hydraulic, mafuta a injini, mafuta odzola, ndi zina zotero); pakati pawo, zinthu zopangidwa ndi polyester zimakhala bwino kwambiri mu zingwe za polyurethane.

 

8.Kutentha kochepa

 

Zingwe za polyurethane zimakhala ndi kukana kutentha kochepa kwambiri ndipo nthawi zambiri zimafika -50℃. Zitha kusintha malo osiyanasiyana komwe zingwe za PVC ndi raba sizingagwiritsidwe ntchito chifukwa cha kusweka kwa kutentha kochepa. Ndizoyenera kwambiri zingwe zomwe zimagwiritsidwa ntchito m'malo ozizira kwambiri.

 

 

Madera ogwiritsira ntchito：

 

01Chingwe chogwiritsira ntchito m'madzi

 

Mitundu ya zingwe za pansi pamadzi imatha kugawidwa m'mbali zinayi zokha.

 

Kuchokera pamalingaliro a kapangidwe kake, imagawidwa makamaka m'zingwe zitatu za pansi pamadzi ndi zingwe za pansi pamadzi zapakati. Zingwe zapakati ndi zochepa zimagwiritsa ntchito zingwe zitatu za pansi pamadzi, ndipo zingwe zapamwamba zimagwiritsa ntchito zingwe za pansi pamadzi zapakati; kuchokera pamalingaliro ogwira ntchito, zaka makumi asanu zapitazo, zingwe za pansi pamadzi zinali ndi ntchito yosavuta yotumizira mphamvu. Tsopano zingwe za pansi pamadzi zimaphatikiza ntchito ziwiri, zomwe zimapangitsa kuti magetsi ndi zizindikiro zifalikire bwino pamzere womwewo wa chingwe; kuchokera pamalingaliro a kapangidwe ka insulation, zimagawidwa m'zingwe za pansi pamadzi zodzazidwa ndi mafuta ndi zingwe za pansi pamadzi zotetezedwa ndi pulasitiki; kuchokera pamalingaliro a mtundu wa katundu, zimagawidwa m'zingwe za pansi pamadzi za DC ndi zingwe za pansi pamadzi za AC. Makhalidwe a zingwe za pansi pamadzi za DC ndi kutayika pang'ono komanso kosavuta kukwaniritsa kutumiza mtunda wautali, koma chidziwitso chogwiritsa ntchito zingwe za pansi pamadzi za DC sicholemera. Ndalama zothandizira zomangamanga za malo osinthira a DC ndizokwera, ndipo zingwe za pansi pamadzi za AC ndi zazikulu, koma ukadaulo wogwirira ntchito ndi kukonza ndi wokhwima ndipo ndalama zothandizira zomangamanga ndizochepa. Chifukwa chake, opanga zingwe za pansi pamadzi nthawi zambiri amafunika kupanga mapangano aukadaulo ndi azachuma kuti apindule kwambiri.

02  Maloboti a mafakitale ndi Chingwe cha Robotics

 

Zikumveka kuti maloboti atsopano opitilira theka padziko lonse lapansi ayikidwa ku China, ndipo maloboti opangidwa ku China nawonso ndi ofunika kwambiri. Popeza ndi zinthu zomwe zimagwirizana ndi maloboti, kufunikira kwa mawaya a ma robot sikunganyalanyazidwe. Makampani opanga ma robot akuchulukirachulukira ku China ndipo akukopa chidwi chachikulu kuchokera ku makampani opanga mawaya. Monga gawo lofunikira la maloboti, Waya ndi Chingwe awonetsa kukula kwakukulu kwa kufunikira kwa msika, ndipo makampani a waya ndi mawaya adzabweretsa mwayi wosowa kwambiri wa chitukuko ndi kusintha.

03 Makina a Port ndi gantry crane reel cable

 

Chingwe cha gantry crane reel chiyenera kukhala chokhoza kukulunga chingwecho chokha, ndipo mphamvu yoyendetsera ya chingwe reel siyenera kukhala yochepera mphamvu yayikulu yokulunga yomwe imafunika pokulunga chingwecho. Panthawi yotulutsa chingwe, mphamvu yogwira ntchito pa kondakitala ya chingwe iyenera kukhala yaying'ono momwe ingathere. Pa zingwe zopanda pakati polimbikitsidwa, mphamvu yayikulu yogwira ntchito pa gawo lopingasa la kondakitala yamkuwa ndi 20N/mm². Pa liwiro lozungulira chingwe lofunikira kapena kulemera kwa chingwe kuli kolemera, chingwe chachitsulo cholimbikitsidwa chomwe chingapirire mphamvu yogwira ntchito yofunikira chiyenera kuwonjezeredwa ngati pakati.

04Zingwe zamakina aukadaulo wa migodi

 

Mawaya ndi zingwe zamagetsi zamagetsi zimafuna kukana kuwonongeka bwino, kukana hydrolysis, kukana kutentha kwambiri komanso kukana okosijeni, kotero zofunikira pa waya ndi zipangizo za chingwe nazonso ndizovuta kwambiri.