Ukwazi kangakanani ngamakhebula e-polyurethane? (Ikhebula le-TPU)
Ikhebula le-PolyurethaneAma-s abhekisela kumakhebula asebenzisa izinto ze-polyurethane njengokushisa noma i-sheath. Ukumelana kwawo nokuguguleka okukhulu kubhekisela ekumelaneni nokuguguleka okukhulu kwe-sheath yekhebula kanye nesendlalelo sokushisa.
Izinto ze-polyurethane ezisetshenziswa ezintanjeni ngokuvamile zibizwa ngokuthi i-TPU, okuyirabha ye-thermoplastic polyurethane elastomer. Ihlukaniswe kakhulu ngohlobo lwe-polyester nohlobo lwe-polyester, enobubanzi bobulukhuni (60HA-85HD), engagugi, engagugi, engangeni uwoyela, esobala kanye ne-elastic. I-TPU ayinazo nje kuphela izakhiwo ezinhle kakhulu ezingagugi, ezingagugi, ezingagugi, ezingagugi, ezingagugi, kodwa futhi iyinto evuthiwe enobungane nemvelo.
Namuhla, iLansheng Cable izokuhambisa ngezici eziyi-8 eziyinhloko kanye nezindawo zokusetshenziswa kwekhebula le-polyurethane.
Izici eziyisi-8 ezinkulu：
1. Ukumelana nokugqoka
Uma ikhebula livame ukusebenza ngomshini njengokungqubuzana, ukuklwebha kanye nokugaya ngesikhathi sokusetshenziswa, lizobangela ukuthi ubuso balo buguge kancane kancane, ngakho-ke ukuguguleka kokukhethwa kwezinto kubaluleke kakhulu.
Izinto zokusetshenziswa zepulasitiki ze-TPU zinamandla okuguguleka amahle kakhulu futhi zimelana nokuguguleka okuphindwe kahlanu kunezintambo zemvelo ezinesivikelo senjoloba. Zingenye yezinto zokuqala ezikhethwayo zemikhiqizo engaguguleki.
2. Ukusebenza okuqinile
Amandla okuthamba kwamakhebula e-polyurethane afinyelela ku-38MPa, kanti amandla okuthamba kwamakhebula avamile enjoloba (enye yamakhebula avame kakhulu emakethe) angama-8-12MPa kuphela.
Uma ikhebula lisetshenziswa endaweni enokudonswa okuphoqelelwe, igobolondo lekhebula elinegobolondo lerabha liba nomphumela omubi wokudonswa, futhi ingaphakathi liphuka kalula ngemva kokucindezelwa kwangaphandle. Ukumelana okuhle kokudonswa kwegobolondo lekhebula le-polyurethane kanye nokufakwa kwe-insulation kudlala indima enhle yokuvikela ingaphakathi lentambo, okwenza lihlale isikhathi eside futhi liqine.
3. Ukusebenza kokuklebhula
Amandla okudabuka yikhono lezinto zokwakha ukumelana nokudabuka. Ngokuvamile, i-TPU inokumelana okukhulu kokudabuka, futhi amandla okudabuka amahle kakhulu uma kuqhathaniswa nerabha nepulasitiki esetshenziswa njalo.
4. Ukusebenza kokusonta
Izintambo eziningi zepulasitiki (njenge-RVV) zivame ukuphuka ngaphansi kokucindezeleka okuphindaphindiwe ngezikhathi ezithile. Izintambo ze-polyurethane zingagcina ukumelana okuhle kokugoba ngaphansi kwezimo ezahlukene, okwenza zibe ngenye yezinketho ezinhle kakhulu zezimo zokugoba okuphindaphindiwe.
5. Ukumelana ne-hydrolysis
Izintambo ze-polyurethane zinokumelana okuhle kwamanzi ngaphansi kokungcola, futhi ngeke zithole i-hydrolysis ecacile phakathi nonyaka owodwa kuya kwemibili, ikakhulukazi uchungechunge lwe-polyether lungcono.
6. Ukumelana nokushisa okuphezulu kanye nokumelana ne-oxidation
Ngokuvamile, izinto zokusetshenziswa zepulasitiki zifakwa kalula endaweni engaphezu kuka-70℃ isikhathi eside, futhi i-TPU inekhono elihle lokulwa ne-antioxidant; ngokuvamile, ukumelana nokushisa kwe-TPU kungafinyelela ku-120℃.
7. Izakhiwo zokumelana namafutha kanye nokumelana nemithi
I-TPU iyinto ye-polymer e-polar kakhulu enobudlelwano obuncane kakhulu namafutha amaminerali angewona a-polar futhi cishe ayigqwali kumafutha kaphethiloli (njenge-parafini, uphethiloli) namafutha omshini (njengamafutha e-hydraulic, uwoyela wenjini, uwoyela wokugcoba, njll.); phakathi kwazo, imikhiqizo yochungechunge lwe-polyester ingcono kakhulu kumakhebula e-polyurethane.
8. Ukusebenza kwezinga lokushisa eliphansi
Izintambo ze-polyurethane zinokumelana okuhle kakhulu nokushisa okuphansi futhi zivame ukufinyelela ku--50℃. Zingathatha indawo yamasimu ahlukahlukene lapho izintambo ze-PVC nezesiketi senjoloba ezijwayelekile zingasetshenziswa khona ngenxa yokuqhekeka kokushisa okuphansi. Zifaneleka kakhulu izintambo ezisetshenziswa ezindaweni ezibandayo kakhulu.
Izindawo zokufaka isicelo：
01Ikhebula lesicelo se-Marine
Izinhlobo zezintambo zasolwandle zingahlukaniswa kalula ngezici ezine.
Ngokombono wesakhiwo, ihlukaniswe kakhulu ngezintambo zangaphansi kolwandle ezinezinsika ezintathu kanye nezintambo zangaphansi kolwandle ezinezinsika eyodwa. Izintambo zamandla aphakathi nendawo kanye neziphansi zisebenzisa izintambo zangaphansi kolwandle ezinezinsika ezintathu, kanti izintambo zamandla aphezulu zisebenzisa izintambo zangaphansi kolwandle ezinezinsika eyodwa; ngokombono osebenzayo, eminyakeni engamashumi amahlanu edlule, izintambo zangaphansi kolwandle zazinomsebenzi olula wokudlulisa amandla. Manje izintambo zangaphansi kolwandle zihlanganisa imisebenzi emibili, ziqaphela ngempumelelo ukudluliswa kukagesi kanye nezibonakaliso emgqeni wekhebula ofanayo; ngokombono wokwakheka kokushisa, zihlukaniswe ngezintambo zangaphansi kolwandle ezifakwe uwoyela kanye nezintambo zangaphansi kolwandle ezifakwe ipulasitiki; ngokombono wohlobo lomthwalo, zihlukaniswe ngezintambo zangaphansi kolwandle ze-DC kanye nezintambo zangaphansi kolwandle ze-AC. Izici zezintambo zangaphansi kolwandle ze-DC ziwukulahlekelwa okuncane futhi kulula ukukufeza ukudluliswa kwebanga elide, kodwa ulwazi lokusetshenziswa kwezintambo zangaphansi kolwandle ze-DC alucebile. Izindleko zokwakha ezisekelayo zeziteshi zokuguqula ze-DC ziphezulu, kanti izintambo zangaphansi kolwandle ze-AC zinkulu, kodwa ubuchwepheshe bokusebenza nokulungisa buvuthiwe futhi izindleko zokwakha ezisekelayo zincane. Ngakho-ke, abaklami bezintambo zangaphansi kolwandle ngokuvamile kufanele benze ukuhwebelana kobuchwepheshe kanye nomnotho ukuze bandise izinzuzo.
02 Amarobhothi ezimboni kanye Ikhebula Lerobhothis
Kuyaqondakala ukuthi amarobhothi amasha ezimboni emhlabeni angaphezu kwengxenye afakiwe eShayina, kanti amarobhothi enziwe eShayina nawo ayingxenye enkulu. Njengezingxenye ezihambisana namarobhothi, isidingo sokuthuthukiswa kwekhebula lamarobhothi asinakubukelwa phansi. Imboni yamarobhothi ezimboni iyachuma eShayina futhi iheha intshisekelo eyandayo evela ezinkampanini zamakhebula. Njengengxenye ebalulekile yamarobhothi, Ucingo Nekhebula zibonise ukukhula okukhulu kwesidingo semakethe, futhi izinkampani zezintambo nezintambo zizoletha ithuba elingavamile lentuthuko kanye noguquko.
03 Imishini yechweba kanye nekhebula le-reel le-gantry crane
Ikhebula le-gantry crane reel kufanele likwazi ukugoqa ikhebula ngokuzenzakalelayo, futhi i-torque yokushayela ye-reel yekhebula akufanele ibe ngaphansi kwe-torque ephezulu yokugoqa edingekayo lapho kugoqwa ikhebula. Ngesikhathi senqubo yokukhulula ikhebula, amandla okudonsa asebenza kumqhubi wekhebula kufanele abe mancane ngangokunokwenzeka. Kumakhebula angenawo umongo oqinisiwe, amandla okucindezela avumelekile asebenza engxenyeni ephambene yomqhubi wethusi angama-20N/mm². Ukuze isivinini sokugoqa ikhebula esidingekayo noma isisindo sekhebula sisinda, intambo yensimbi eqinisiwe engamelana namandla okudonsa adingekayo kufanele ingezwe njengomongo.
04Izintambo zemishini yobunjiniyela bezimayini
Izintambo nezintambo zemishini yobunjiniyela bezimayini zidinga ukumelana nokuguguleka okungcono, ukumelana ne-hydrolysis, ukumelana nokushisa okuphezulu kanye nokumelana ne-oxidation, ngakho-ke izidingo zezinto zocingo nezintambo nazo ziqinile.