Ukucutshungulwa kwezixhobo zeplastiki ikakhulu yinkqubo yokunyibilika, ukuqukuqela kunye nokupholisa amasuntswana erabha kwiimveliso ezigqityiweyo emva kokumiselwa. Yinkqubo yokufudumeza kunye nokupholisa. Ikwayinkqubo yokutshintsha iiplastiki ukusuka kumasuntswana ukuya kwiimilo ezahlukeneyo. Ukwenzela iumatshini weplastiki we-thermoforming , yonke inkqubo inokwenziwa ngokwezifiso ngokusebenza okuzenzekelayo ngaphandle kokusebenza ngesandla, kwaye umgangatho wemveliso uzinzile! Oku kulandelayo kuya kuchaza inkqubo yokucubungula ngokwembono yezigaba ezahlukeneyo.
1. Nyibilika
Isifudumezi sesixhobo sivumela amasuntswana ezinto ezikrwada ukuba anyibilike ngokuthe ngcembe ekuphumeni kolwelo. Izinto eziluhlaza ezahlukeneyo zifaneleka kakhulu ukulawula ubushushu. Ukunyusa izinga lokushisa kuya kukhawulezisa ukuhamba kwezinto eziluhlaza, ezinokunyusa ukusebenza kakuhle, kodwa kungekhona ukuqinisekisa isivuno. Ulungelelwaniso olufanelekileyo kufuneka luphunyezwe. Ukongezelela, umphumo omhle kunye neempawu zePP kwimeko yokuqhekeka okuphezulu kwe-thermal kukuba kukulungele ukwenza izinto eziluhlaza zihambe kakuhle ekufeni ngexesha lokuvelisa, ukwenzela ukuba ugweme ukuzaliswa okunganeleyo okanye ukuguquguquka. I-Reflux ithetha ukuba ukuhamba kwezinto eziluhlaza kukhawuleza kunomlinganiselo wokuphuma, kwaye ekugqibeleni ukwandisa umyinge wokuhamba kakuhle, okulingana nokuphuculwa kwe-MFR. Yenye yeendlela ezikhoyo zokucutshungulwa, Nangona kunjalo, iphinda ibangele ukuhanjiswa kwe-MFR okungaqhelekanga, okunokukhokelela ekunyuseni kokungazinzi kunye nokwanda kweziphene. Nangona kunjalo, ngenxa yesicelo, iimveliso ezigqityiweyo zePP azikho iimveliso ezinomgangatho ophezulu wokuchaneka, ngoko ke impembelelo ayinkulu.
2.Isiqu sesikrubhu
Uninzi lwenkqubo yePP ixhomekeke kwi-screw ukuqhuba i-fluidity, ngoko ke uyilo lwe-screw lunempembelelo enkulu. Ububanzi buchaphazela imveliso, kwaye umlinganiselo woxinzelelo uchaphazela ixabiso loxinzelelo. Ikwachaphazela imveliso kunye nomphumo ogqityiweyo wemveliso, kubandakanywa umphumo wokuxuba izinto ezahlukeneyo (Umbala we-Masterbatch, izongezo kunye nezilungisi). Ukuhamba kwemathiriyeli ekrwada ikakhulu kuxhomekeke kwisifudumezi, kodwa ukukhuhlana kunye nokukhuhlana kwemathiriyeli ekrwada nako kuya kuvelisa amandla obushushu okukhuhlana ukukhawulezisa ukumanzi. Ke ngoko, i-screw compression ratio incinci, ukuhamba kuncinci, kwaye isantya esijikelezayo kufuneka sandiswe, okukhokelela kumandla obushushu obushushu obuninzi kune-screw enomlinganiselo omkhulu woxinzelelo. Ngoko ke, kudla ngokuthiwa akukho nkosi kwi-plastic processing, kwaye umntu oqonda ngokucokisekileyo ukusebenza komatshini yinkosi. Ukufudumeza kwezinto eziluhlaza akukona nje ukufudumeza, kodwa kubandakanya ubushushu be-friction kunye nexesha lokuphefumula. Ngoko ke, le yingxaki ebonakalayo. Amava aluncedo ukusombulula iingxaki zemveliso kunye nokuphucula ukusebenza kakuhle. Ukuba impembelelo yokuxuba i-screw ilungile ngokukhethekileyo, ngamanye amaxesha izikhonkwane ezibini ezahlukeneyo okanye izikhonkwane ze-biaxial ziyilwe, kwaye icandelo ngalinye leendlela ezahlukeneyo ze-screws zisekwe ngokwahlukileyo ukuphumeza iziphumo ezahlukeneyo zokuxuba.
3. Yifa okanye ufe ngentloko
Ukubunjwa kwakhona kweplastiki kuxhomekeke kwisikhunta okanye kwintloko yokufa. Isitofu sokubumba imveliso egqityiweyo i-dimensional-dimensional, kwaye i-mold nayo inzima. Ingxaki yokuncipha kufuneka ithathelwe ingqalelo. Ezinye iimveliso plane, strip kunye inaliti imveliso eqhubekayo iyafa. Ukuba ziimilo ezikhethekileyo, zihlelwa njengemilo ekhethekileyo. Ingqalelo kufuneka ihlawulwe kwingxaki yokupholisa ngokukhawuleza kunye nokulinganisa. Oomatshini abaninzi beplastiki bayilwe njengesirinji. I-extrusion force eqhutywa yi-screw iya kubangela uxinzelelo olukhulu kwi-outlet encinci kunye nokuphucula ukusebenza kakuhle kwemveliso. Xa intloko die uyilwe njengenqwelomoya, indlela yokwenza izinto ekrwada ngokulinganayo isasazwe phezu komhlaba wonke, uyilo iimpahla hanger die intloko kubaluleke kakhulu. Nikelani ingqalelo kwithuba le-extrusion lokunyusa ipompo yegill yentlanzi kunye nokuzinzisa ukunikezelwa kwezinto eziluhlaza.
4. Ukupholisa
Ukongeza kokugalela izinto eziluhlaza kwisango le-sprue, i-injection mold nayo inoyilo lokupholisa izinto eziluhlaza kumjelo wokupholisa. Ukubunjwa kwe-Extrusion kuxhomekeke kumjelo wamanzi wokupholisa kwi-roller ukufezekisa umphumo wokupholisa. Ukongeza, kukho iimela zomoya, amanzi okupholisa agalelwe ngokuthe ngqo kwingxowa yokuvuthela, ukuvuthela okungenanto kunye nezinye iindlela zokupholisa.
5. Yandisa
Ukulungiswa kwemveliso egqityiweyo kunye nokwandiswa kuya kuphucula umphumo. Ngokomzekelo, isantya esahlukileyo sebhanti yokupakisha eqhutywa ngasemva kunye ne-roller yangaphambili iya kubangela umphumo wokwandisa. I-tensile force yokwandiswa kwenxalenye yemveliso egqityiweyo iqiniswa, okungekho lula ukuyikrazula, kodwa kulula kakhulu ukukrazula ngokuthe tye. Ukusabalalisa ubunzima be-molecular kuya kuchaphazela umphumo wokwandisa kwimveliso yesantya esiphezulu. Zonke iimveliso ezikhutshiweyo, kubandakanywa nemicu, zinesandiso esingalinganiyo. Ivacuum kunye nokwenziwa komoya ocinezelweyo nako kungathathwa njengolunye uhlobo lolwandiso.
6. Nciphisa
Naziphi na izinto eziluhlaza zinengxaki yokuncipha, okubangelwa uxinzelelo lwangaphakathi ngexesha lokwandiswa kwe-thermal, ukuchithwa okubandayo kunye ne-crystallization. Ngokuqhelekileyo, ukwanda kwe-thermal kunye nokushwabana okubandayo kulula ukoyisa, okunokwenziwa ngokwandisa ixesha lokupholisa ekuqhubeni nasekugcineni uxinzelelo ngokuqhubekayo. Icrystalline imathiriyeli ekrwada kaninzi inomahluko omkhulu wokushwabana kunemathiriyeli ekrwada engeyikristale, malunga ne-16% yePP, kodwa malunga ne-4% kuphela ye-ABS, eyahluke kakhulu. Le nxalenye idinga ukunqotshwa kwi-mold, okanye izongezo zokunciphisa izinga lokunciphisa i-shrinkage zihlala zongezwa, i-LDPE idla ngokudibaniswa kwi-plate extrusion ukuphucula ingxaki yentamo.
Umatshini wePlastiki we-thermoforming isebenza phantse kuzo zonke i-thermoplastics. Kwiminyaka yakutshanje, umatshini weplastiki we-thermoforming usetyenziswe ngempumelelo ukwenza iiplastiki ze-thermosetting. Umjikelo wokubumba weumatshini weplastiki we-thermoforming imfutshane (imizuzwana embalwa ukuya kwimizuzu embalwa), kwaye inokwenza iimbumba ezinemilo enzima, ubukhulu obuchanekileyo kunye nexesha elinye. GTMSMART oomatshini thermoforming iimveliso ziqukaUmatshini wePlastiki weThermoforming,Cup Machine Thermoforming,Umatshini wokwenza isifunxa sePlastiki,Umatshini wokuThermoforming wePlastiki yeentyatyambo.
GTMSMART bonelela ngoomatshini bodidi lokuqala ngexabiso elincomekayo elinokuhlangabezana ngokulula neemfuno zakho zemveliso eninzi. Jonga uluhlu lwethu lweemveliso kwaye uya kufumana iinketho ezininzi zokusebenza eziphezulu ezihambelana neemfuno zakho.
Ixesha lokuposa: Oct-31-2021