Kuitwa kwezvigadzirwa zvakanyungudutswa zvinonyanya kureva maitiro avo emuviri uye emagetsi, akadai sesimba, kufema, fiber diameter, etc. Nekuda kwekuoma kwekunyunguduka kunoputika, kune zvakawanda zvinofurira zvinhu. Nhasi, mupepeti achaongorora muchidimbu zvikonzero zvekushayikwa kwekuoma mumachira akanyunguduka. Kana usingakwanise kuzvitsanangura zvakanaka, ndapota ipa mamwe nhungamiro nemazano!
Nyunguduka yakavhuvhuta giredhi polypropylene PP particle mbishi zvinhu
Iyo melt index (MFI) ye polypropylene particles yakanangana nekusimba kwekusimba uye kuputika kwesimba rekunyunguduka kunoputika machira asina kuruka. Iyo yakaderera iyo molecular uremu hwepolymer, iyo yakakwira iyo melt flow index (MFI), uye yakaderera iyo yakanyunguduka viscosity, ichiita kuti ive yakakodzera kune iyo isina simba.
Kutambanudza maitiro mukunyunguduka kwekupfapfaidza maitiro
Iyo yakakwira iyo melt index, kuderera kwesimba rekunyunguduka kunoputika faibha imwe chete uye kuderera kwesimba redandemutande.
Mukugadzirwa chaiko, polypropylene ine yakakwira MFI kana yakaderera MFI inofanira kushandiswa here?
MFI diki: inokwanisa kugadzira machira akanyunguduka asina kuruka ane simba rakawanda.
MFI yakakura: yakakwira kuburitsa, yakaderera simba rekushandisa. Naizvozvo, maitiro aripo ndeekushandisa yakakwira MFI raw materials.
Nyunguduka yakavhuvhuta giredhi polypropylene PP pellets: MFI> 1500
Izvi zvinoreva, kana iwe ukaona kuti yakagadzirwa yakanyunguduka jira "yakanyanya brittle", tanga watarisa iyo melt index yezvinhu zvakasvibiswa. Iyo chaiyo nzira yekuona iyi parameter inoenderana nekuti wakatenga kupi zvigadzirwa kubva.
Melt blown process
Chikonzero nei kubuda kwemhepo kwemhepo inopisa kwakanyanya kudiki:
Kumhanya kwemhepo inopisa kunowedzera;
Iyo yakatsetseka iyo fiber dhayamita;
Iko kusimba kwesimba remafibhi imwe chete kunowedzera;
Iyo yekubatanidza mhedzisiro pakati pefibers muwebhu inowedzera, uyekusimba kwejira risina kurukainowedzera.
Velocity yemhepo inopisa inoyerera inodzorwa pakati pe0.08-0.2. Mhepo yekuyerera kwemhepo inofanirwa kugara uye haigone kuchinjika nekukurumidza. Kana chiyero chekuyerera chakanyanyisa, chichagadzira "pfuti" chiitiko. Nekuda kweakasiyana-siyana emagetsi ekupa gasi mumusika wazvino uye kusaenzana kuita, matambudziko anofanirwa kurapwa zvakasiyana uye iyo yakanyunguduka yekupfapfaidza maitiro paramita inofanirwa kuchinjika.
Tembiricha yekunyunguduka yakavhuvhuta mold musoro
Iyo yakakwirira tembiricha, iyo inodzika iyo viscosity yekunyunguduka, uye iyo fiber yakanyanya kunaka
Nekudaro, iyo yakaderera viscosity yekunyunguduka inogona kukonzera yakawandisa kutambanudza kweiyo melt filaments, zvichikonzera Ultra pfupi uye ultrafine fibers inopararira mumhepo uye haigone kuunganidzwa. Naizvozvo, viscosity yepolymer inonyungudika mukunyunguduka kwekupfapfaidza haisi iyo iri nani kana yakadzikira. Pane dzimwe nguva dzakadai, panogonawo kuva nechiitiko che 'maruva anobhururuka', apo pasina mafiibhi akaungana kana kupararira mumhepo.
Tembiricha yemusoro we mold, flange, uye gokora zvinofanirwa kuchengetedzwa padanho repamwero, uye tembiricha nhatu idzi hadzifanire kutsauka zvakanyanya.
Izvo zviri pamusoro apa ongororo yezvikonzero nei machira akanyunguduka achiita brittle uye asina kukwana kusimba kwesimba. Izvo zvinoenderana nesimba reiyo brittleness yejira, uye maitiro ekugadzira anofanira kugadziridzwa zvine musoro. Kugadzirwa kwemachira akanyunguduka hakuna kuoma, asi kuomerwa kuri mukunyungudika kuumba maitiro, izvo zvinoda humwe huwandu hwekuunganidza ruzivo kugadzirisa mashandiro emidziyo. Kune shamwari dzisinganyatso nzwisisa, dzinogona kuwana akavimbika ekugadzirisa muchina kana kubata mupepeti kuti vakurukure nekukurudzira pamwe chete!
Dongguan Liansheng Nonwoven Fabric Co., Ltd., mugadziri wemicheka isina mucheka uye micheka isina kugadzirwa, akakodzera kuvimba kwako!
Nguva yekutumira: Zvita-14-2024