Izinhlelo zesimanje zikagesi zincike ekuxhumeni phakathi kwamadivayisi ahlukile, amabhodi wesifunda, kanye nokunye. Noma ngabe ukudlulisa amandla noma amasiginali kagesi, izintambo zingumgogodla wokuxhumeka kwentambo, okwenza babe yingxenye ebalulekile yazo zonke izinhlelo.
Kodwa-ke, ukubaluleka kwamakhebula amakhebula (ungqimba lwangaphandle oluzungezile futhi kuvikele abaqhubi abangaphakathi) kuvame ukungabukelwa phansi. Ukukhetha izinto ezilungile zekhebula lekhebula kuyisinqumo esibucayi ekwakhiweni kwamakhebula nokukhiqiza, ikakhulukazi uma kusetshenziswa ezindaweni ezinokhahlo. Ukuqonda ibhalansi phakathi kokusebenza kwemishini, ukumelana kwemvelo, ukuvumelana nezimo, izindleko, nokuhambisana nokulawula kuyisihluthulelo sokwenza isinqumo esihlakaniphile.
Enhliziyweni kajayi lentambo kuyisihlangu esivikela futhi kuqinisekise impilo nokwethenjwa kwekhebula elingaphakathi. Lokhu kuvikelwa kuvikela ngokumelene nomswakama, amakhemikhali, imisebe ye-UV, kanye nokuxineka ngokomzimba okufana nokuhlukumeza kanye nomthelela.
Indwangu yamakhethini amakhebula avela kumapulasitiki alula afinyelela kuma-polymers athuthukile, ngalinye linezakhiwo ezihlukile zokuhlangabezana nezidingo ezithile zemvelo nezemishini. Inqubo yokukhetha ibalulekile ngoba impahla efanele iqinisekisa ukusebenza kahle nokuvikelwa ngaphansi kwezimo ezilindelekile zokusetshenziswa.
Alukho "usayizi owodwa uvumela lonke isixazululo se-kheshi lentambo. Okukhethiwe okukhethiwe kungahluka ngokuya ngezimo ezihlukile zohlelo lokusebenza.
Kunezici eziningana okufanele zicatshangelwe lapho ukhetha izinto ezifanele zekhebula lekhebula.
1. Izimo zezemvelo
Ukumelana kwamakhemikhali kuyinto ebucayi ekukhetheni amajakethi amakhebula, njengoba izintambo zingahlangana namafutha, izixazululo, ama-acid, noma izisekelo, ngokuya ngesicelo sazo. Ijakhethi yentambo ekhethiwe kahle ingavimbela ukonakala noma ukubhujiswa kwezinto zayo ezingaphansi, ngaleyo ndlela zigcina ubuqotho bentambo ngaphezulu kwempilo yenkonzo yayo. Isibonelo, ezindaweni zezimboni lapho ukuvezwa kwamakhemikhali kuvamile, kubalulekile ukukhetha izinto ezingamelana nezimo ezinzima ezinzima. Lapha, amakhemikhali athile azovezwa ngalo kufanele ahlolwe, njengoba lokhu kunquma isidingo sezinto ezikhethekile ezifana nama-fluoropolymers ukufezekisa ukumelana kwamakhemikhali.
Isimo sezulu kanye nokuphikiswa ukukhanya kwelanga kungenye ukucatshangelwa okubalulekile, ikakhulukazi amakhebuli asetshenziswe ngaphandle. Ukuchayeka isikhathi eside sokukhanya kwelanga kunganciphisa izinto zendabuko, okuholela ekuhlulekeni nasekuhlulekeni ekugcineni. Izinto eziklanyelwe ukumelana nemisebe ye-UV ziqinisekisa ukuthi ikhebula lihlala lisebenza futhi lihlala isikhathi eside ngisho nasekukhanya kwelanga okukhulu. Ngezinhlelo zokusebenza ezinjalo, izinto ezifanelekile zingama-cpe thermoplastics, ama-cpe thermostats, noma ama-epr thermostats. Ezinye izinto ezithuthukile, ezinjenge-polyethylene exhunyiwe (I-XLPE), yathuthukiswa ukuhlinzeka ukumelana okuthuthukile kwe-UV, iqinisekisa ubude bentambo kwizicelo zangaphandle.
Ngokwengeziwe, ezindaweni lapho ubungozi bomlilo luyakhathaza, ukhetha ijakhethi yekhebula elivutha amalangabi noma ukuziqhenya ngokuziqhenya kungaba yisinqumo esisindisa impilo. Lezi zinto zokwenziwa zenzelwe ukumisa ukusakazeka kwamalangabi, engeza ungqimba olubalulekile lokuphepha ezicelo ezibucayi. Nge-Flame Retardancy, izinqumo ezinhle kakhulu zifaka phakathiUhlobo lwenhlanzithermoplastics kanye ne-cpe thermoplastics. Izinto ezinjalo zinganciphisa ukusakazeka kwamalangabi ngenkathi kunciphisa ukuphuma kwamagesi anobuthi ngesikhathi sokuvutha.
2. Izakhiwo zemishini
Ukumelana kwe-abrasion, amandla okuphamba, kanye nekhono elichobozekile lejazi lentambo lithinta ngokuqondile ukuqina kwe-polyurethane. Lokhu kuyadingeka kakhulu kuzinhlelo zokusebenza lapho ikhebula lithatha inselelo enkulu noma lidinga ukuphathwa njalo. Ezicelo zeselula kakhulu, ezifana namarobhothi noma imishini enamandla, ukukhetha ijakhethi yentambo enezakhiwo eziphakeme zemishini kungasiza ekugwemeni ukushintshwa njalo njalo kanye nokunakekelwa. Izinto zokugqoka ezivinjelwe ezingcono kakhulu ze-jacket covers zifaka i-polyurethane thermoplastics kanye ne-cpe thermoplastics.
3. Ukucatshangelwa kokushisa
Uhla lokushisa olusebenzayo lwendwangu yejakhethi yekhebula kungaba umehluko phakathi kwempumelelo noma ukwehluleka kohlelo. Izinto ezihluleka ukumelana nobubanzi bokushisa kwendawo yabo okuhlosiwe kungahle kube brittle ngezimo ezibandayo noma ezihlanza lapho kuvezwa amazinga okushisa aphezulu. Lokhu kuncipha kungahlehlisa ubuqotho bekhebula futhi kubangele ukwehluleka kukagesi kokufakwa kukagesi, okuholela ekuphazamizeni noma ekuphepheni kwezokuphepha.
Ngenkathi izintambo eziningi ezijwayelekile zingalinganiswa kuze kufike ku-105 ° C, izinhlelo zokusebenza ezikhethekile ze-PVC zingadinga ukubekezelela amazinga okushisa aphezulu. Kwezimboni ezinjenge-oyili negesi, izicelo ezikhethekile zidinga izinto zokwelashwa, ezinjengezinto zochungechunge ze-SJS ze-SJS, ezingamelana namazinga okushisa aze afike ku-200 ° C. Kulawa mazinga okushisa aphezulu, kungadingeka izinto ezahlukahlukene, kufaka phakathi i-PVC ohlangothini lwe-thermoplastic ne-CPE noma i-EPR noma i-CPR ohlangothini lwe-thermostat. Izinto ezingasebenza ezindaweni ezinjalo zingamelana namazinga okushisa aphakeme futhi zimelane nokuguga okushisayo, kuqinisekiswe ukusebenza kwentambo ngokuhamba kwesikhathi.
Cabanga ngezindawo eziphakeme zokushisa, ezinjenge-rigs yokumba onsundu. Kulezi zingcindezi eziphakeme, izindawo zokushisa eziphakeme, kuyadingeka ukuthi ukhethe impahla yejakhethi yekhebula elingamelana namazinga okushisa aphezulu ngaphandle kokuwohloka noma ukwehluleka. Ekugcineni, ukukhetha izinto ezifanele zekhebula ikhebula kungaqinisekisa imisebenzi ephephile futhi ethembekile ngenkathi unweba impilo yemishini.
4. Isidingo Sokuguquguquka
Ezinye izinhlelo zidinga izintambo ukuthi zihlale ziguquguquke ngaphansi kokuphindwayo okuphindaphindiwe nokunyakaza okusontekile. Lesi sidingo sokuvumelana nezimo asinciphisi isidingo sokuqina; Ngakho-ke, izinto zokwakha kumele zikhethwe ngokucophelela ukuze zilinganise ngempumelelo lezi zidingo ezimbili. Kulezi zimo, izinto ezifana ne-thermoplastic elastomers (TPE) noma i-polyurethane (i-pur) ithandeka ukuqina kwazo nokuqina.
Izintambo ezisetshenzisiwe ezenzakalelayo zezimboni, ngokwesibonelo, kumele ziguquguquke kakhulu ukwamukela ukunyakaza kwemishini efana namarobhothi. Amarobhothi e-Mesh asetshenziselwa imisebenzi efana nokukhetha nokubeka izingxenye ayisibonelo esiphambili salesi sidingo. Idizayini yabo ivumela ukunyakaza okuhlukahlukene, ukubeka ingcindezi njalo kwizintambo, kudinga ukusetshenziswa kwezinto zokwakha ezingamelana nokugoba nokusonteka ngaphandle kokuyekethisa ukusebenza.
Ngemuva kokubheka izimo zemvelo, izakhiwo zemishini, izinga lokushisa, kanye nezidingo zokuguquguquka, kubalulekile futhi ukuqaphela ukuthi ubukhulu bentambo buzohluka ngezinto ngasinye. Ukuze uhlale unobungani bemvelo, ububanzi bekhebula kumele buhlale ngaphakathi kokubekwa uphawu kwesizinda se-backshell noma okunamathiselwe kwesixhumi.
Isikhathi sePosi: Aug-12-2024