Umatshini wokubumba wokutofa (umatshini wokubumba we-injection okanye umatshini wokubumba omfutshane) sesona sixhobo sokubumba esenza i-thermoplastic okanye i-thermosetting ibe yimveliso yeplastiki yeemilo ezahlukeneyo usebenzisa i-mold yeplastiki yokubumba.Isitofu sokubumba senziwa ngoomatshini bokubumba kunye nokubumba.
Nazi ezinye iinkqubo zokubumba inaliti ezichaphazela ukomelela kwamalungu abunjiweyo enaliti:
1. Ukwandisa uxinzelelo lwenaliti kunokuphucula amandla okuqinaPP inaliti iindawo ezibunjiweyo
Imathiriyeli ye-PP iyalastiki ngakumbi kunezinye izixhobo zerabha eqinile, ngoko ke ukuxinana kweendawo ezibunjiweyo zenaliti ziya kunyuka ngokunyuka koxinzelelo, olucacileyo.Xa ukuxinana kwamalungu eplastiki kunyuka, amandla ayo okuqina aya kunyuka ngokwendalo, kwaye ngokuphambeneyo.
Nangona kunjalo, xa uxinaniso lunyuswa ukuya kwixabiso eliphezulu elinokuthi iPP ngokwayo ifikelele, amandla okuqina akayi kuqhubeka ukunyuka ukuba uxinzelelo luyanda, kodwa luya kwandisa uxinzelelo lwangaphakathi olushiyekileyo lwamalungu abunjiweyo, okwenza ukuba iindawo ezibunjiweyo zibe brittle. , ngoko ifanele iyekwe.
Ezinye izinto zineemeko ezifanayo, kodwa idigri ecacileyo iya kwahluka.
2. Inaliti yeoli yokudlulisa ubushushu bomngundo inokuphucula amandla eenxalenye zeSaigang kunye neenxalenye zenayiloni
Izinto zenayiloni kunye nePOM ziiplastiki zekristale.Isikhunta sitofwa ngeoli eshushu ehanjiswa ngumatshini weoli eshushu, enokunciphisa izinga lokupholisa leenxalenye ezibunjiweyo zenaliti kunye nokuphucula i-crystallinity yeplastiki.Kwangaxeshanye, ngenxa yokucotha kwesantya sokupholisa, uxinzelelo lwangaphakathi olushiyekileyo lweendawo ezibunjiweyo zenaliti nazo ziyancitshiswa.Ke ngoko, ukuchasana kwempembelelo kunye namandla okuqina kweinayiloni kunye neendawo zePOMefakwe i-oyile eshushu yokudlulisa ubushushu iya kuphuculwa ngokufanelekileyo.
Kufuneka kuqatshelwe ukuba imilinganiselo ye-nylon kunye neengxenye ze-POM ezibunjwe ngeoli eshushu ehanjiswa ngumatshini we-oyile eshushu ngandlel 'ithile ihluke kwizinto ezibunjwe ngamanzi athuthwayo, kwaye iindawo zenylon zinokuba zikhulu.
3. Isantya sokunyibilika sikhawuleza kakhulu, nokuba i-180 ℃ isetyenziselwa ukubumba inaliti, iglu iya kuba krwada.
Ngokubanzi, imathiriyeli ye-PVC ye-90 ifakwe kwi-180 ℃, kwaye iqondo lobushushu lanele, ngoko ke ingxaki yerabha ekrwada ayenzeki.Nangona kunjalo, kudla ngokuba ngenxa yezizathu ezingatsali ngqalelo yomsebenzisi, okanye ukukhawulezisa ngabom isantya sokunyibilika kweglue ukuze kukhawuleziswe imveliso, ukuze isikrufu sibuye ngokukhawuleza.Umzekelo, kuthatha imizuzwana emibini okanye emithathu kuphela ukuba isikrufu sihlehle ukuya kuthi ga kwisiqingatha sobuninzi bokunyibilika kweglue.Ixesha lokuba izinto zePVC zifudunyezwe kwaye zishukunyiswe alanele ngokwaneleyo, nto leyo ekhokelela kwingxaki yobushushu obunyibilikayo beglu kunye nokuxubana kwerabha ekrwada, Amandla kunye nokuqina kwenaliti ezibunjiweyo ziya kuba mbi kakhulu.
Ngoko ke, niniukutofa izixhobo zePVC, kufuneka uqaphele ukuba ungalungiseleli ngokukhawuleza isantya se-adhesive enyibilikayo ukuya ngaphezu kwe-100 rpm.Ukuba kufuneka ilungelelaniswe ngokukhawuleza, khumbula ukunyusa ubushushu bezinto eziphathekayo nge-5 ukuya kwi-10 ℃, okanye ukwandisa uxinzelelo lwangasemva lwe-adhesive inyibilika ngokufanelekileyo ukusebenzisana.Kwangaxeshanye, nikela ingqalelo ukujonga rhoqo ukuba kukho ingxaki ngerabha ekrwada, kungenjalo kunokwenzeka ukuba kubangele ilahleko enkulu.
Ixesha lokuposa: Nov-11-2022