Ukumiswa kokuncipha kwenqubo yokubumba umjovo

Izici ezithinta ukuncipha kwe-thermoplastics zimi kanje:

1. Uhlobo lwepulasitiki:

Phakathi nenqubo yokubumba yethermoplastics, kusekhona ezinye izici ezinjengokushintsha kwevolumu ngenxa yokucwebezela, ukucindezeleka okuqinile kwangaphakathi, ukucindezeleka okukhulu okuyinsalela okufriziwe engxenyeni yepulasitiki, ukuma okuqinile kwamangqamuzana, njll., ngakho uma kuqhathaniswa namapulasitiki e-thermosetting, izinga lokuncipha likhulu, izinga lokushwabana. ububanzi bubanzi, futhi ukuqondisa kuyabonakala.Ukwengeza, izinga lokushwabana ngemva kokubunjwa kwangaphandle, ukwelashwa kwe-annealing noma ukuswakama ngokuvamile likhulu kunalelo lamapulasitiki e-thermosetting.

2. Izici zengxenye yepulasitiki:

Lapho into encibilikisiwe ithinta ingaphezulu lesikhunta, ungqimba lwangaphandle luphola ngokushesha kwakheka igobolondo eliqinile eliqinile.Ngenxa ye-thermal conductivity empofu yepulasitiki, ungqimba lwangaphakathi lwengxenye yepulasitiki luphola kancane ukuze lwenze ungqimba oluqinile oluphezulu olunokuncipha okukhulu.Ngakho-ke, labo abanokuqina kodonga, ukupholisa kancane kanye nogqinsi lwengqimba ephezulu bazoncipha kakhulu.Ukwengeza, ukuba khona noma ukungabikho kokufakwayo kanye nesakhiwo kanye nenani lezinto ezifakiwe kuthinta ngokuqondile isiqondiso sokugeleza kwempahla, ukusabalalisa kokuminyana kanye nokumelana nokuncipha.Ngakho-ke, izici zezingxenye zepulasitiki zinomthelela omkhulu kusayizi we-shrinkage kanye nesiqondiso.

3. Uhlobo lokungenisa okuphakelayo, usayizi nokusabalalisa:

Lezi zici zithinta ngokuqondile isiqondiso sokugeleza kwempahla, ukusatshalaliswa kwabantu, ukubamba ingcindezi kanye nomphumela wokuphakela kanye nesikhathi sokubumba.I-feed inlet eqondile kanye ne-feed inlet enesigaba esikhulu (ikakhulukazi ingxenye ewugqinsi) inokuncipha okuncane kodwa i-directivity enkulu, kuyilapho i-feed inlet enobubanzi obufushane nobude inokuqondisa okuncane.Lezo eziseduze nendawo yokuphakelayo noma ezihambisana nendlela yokuhamba kwezinto zizoba nokuncipha okukhulu.

4. Izimo zokwakha:

Izinga lokushisa lesikhunta liphezulu, izinto ezincibilikisiwe ziphola kancane, ukuminyana kuphezulu, futhi ukuncipha kukhulu.Ikakhulukazi ku-crystalline material, ukuncipha kukhulu ngenxa ye-crystallinity ephezulu kanye nokushintsha kwevolumu enkulu.Ukusatshalaliswa kwezinga lokushisa kwesikhunta nakho kuhlobene nokupholisa kwangaphakathi nangaphandle kanye nokufana kobuningi bezingxenye zepulasitiki, okuthinta ngokuqondile ubukhulu kanye nesiqondiso sokuncipha kwengxenye ngayinye.

Phakathiisikhunta design, izinga lokuncipha kwengxenye ngayinye yengxenye yepulasitiki lizonqunywa ngokusekelwe kokuhlangenwe nakho ngokobubanzi bokuncipha kwamapulasitiki ahlukahlukene, ukushuba kodonga kanye nokuma kwengxenye yepulasitiki, isimo, usayizi nokusatshalaliswa kwe-inlet feed, bese kuba usayizi womgodi uzobalwa.

Ezingxenyeni zepulasitiki ezinemba okuphezulu futhi lapho kunzima ukuqonda izinga lokuncipha, izindlela ezilandelayo kufanele zisetshenziswe ngokujwayelekile ukuklama isikhunta:

① Ububanzi obungaphandle bezingxenye zepulasitiki buzoba nesilinganiso sokuncipha esincane, futhi ububanzi bangaphakathi buzoba nenani elikhulu lokushwabana, ukuze kushiye indawo yokulungiswa ngemva kokuhlolwa kwesikhunta.

② Ukuhlolwa kwesikhunta kunquma ifomu, usayizi kanye nezimo zokubumba zesistimu yokufaka.

③ Izingxenye zepulasitiki ezizolashwa ngemva kokwelashwa zizoba ngaphansi kokwelashwa ukuze kunqunywe ukushintsha kosayizi (isilinganiso kufanele senziwe amahora angu-24 ngemva kokudilizwa).

④ Lungisa isikhunta ngokuya ngokuncipha kwangempela.

⑤ Zama isikhunta futhi futhi ushintshe inani lokuncipha kancane ngokushintsha izimo zenqubo ngokufanele ukuze uhlangabezane nezidingo zengxenye yepulasitiki.