IInkqubo yokubumba izinto ze-SMCyeyona isebenzayo kwifiber yeglasi eyomeleziweyo yeplastiki/inkqubo yokubumba imathiriyeli edibeneyo.Inkqubo yokubumba ye-SMC ineenzuzo ezininzi, ezinje: ubungakanani bemveliso echanekileyo, umgangatho ogudileyo, imbonakalo entle yemveliso kunye nokuphindaphinda ubungakanani, isakhiwo esintsonkothileyo sinokubumba ngexesha elinye, ukusetyenzwa kwesibini akufuneki konakalise imveliso, njl njl. Nangona kunjalo, imbi iziphene ziya kuvela kwakhona kwinkqubo yokuvelisa i-SMC, ebonakaliswa ikakhulu kwezi zizathu zilandelayo:
(Mna)Ukunqongophala kwezinto: Ukungabikho kwezinto eziphathekayo kuthetha ukuba iindawo ezibunjiweyo ze-SMC azigcwaliswanga ngokupheleleyo, kwaye iindawo zokuvelisa zigxininiswe kakhulu kwimida yeemveliso ze-SMC, ngokukodwa iingcambu kunye neentloko zeekona.
(a) Ukukhutshwa kwezinto ezincinci
(b) Imathiriyeli ye-SMC ayinamanzi amdaka
(C) Uxinzelelo lwezixhobo ezinganeleyo
(d) Ukunyanga ngokukhawuleza kakhulu
Indlela yokuvelisa kunye nemilinganiselo yokuthintela:
① Emva kokuba izinto ze-SMC zenziwe ngeplastiki bubushushu, i-viscosity enyibilikayo inkulu.Ngaphambi kokuba i-cross-linking kunye nokuqiniswa kwempendulo kugqitywe, akukho xesha laneleyo, uxinzelelo, kunye nomthamo wokuzalisa i-mold cavity kunye ne-melt.
②) Ixesha lokugcinwa kwezinto ze-SMC zokubumba zide kakhulu, kwaye i-styrene iguquguquka kakhulu, ibangele ukuhla okubonakalayo kwiipropati zokuhamba kwezinto ze-SMC zokubumba.
③Intlama yeresin ayifakwanga kwifiber.I-resin paste ayikwazi ukuqhuba i-fiber ukuba ihambe ngexesha lokubumba, okubangela ukunqongophala kwezinto.Ngenxa yokunqongophala kwezinto ezibangelwa ezi zizathu zingasentla, isisombululo esithe ngqo kukukhupha ezi zinto ezibunjiweyo xa usika izinto.
④Imali engonelanga yokutya ibangela ukunqongophala kwezinto.Isisombululo kukunyusa isixa sokutya ngokufanelekileyo.
⑤Kukho umoya omninzi kunye nezinto eziguquguqukayo kwizinto zokubumba.Isisombululo kukwandisa ngokufanelekileyo inani lokukhupha;ukwandisa ngokufanelekileyo indawo yokutya kunye ne-burp ixesha elithile lokucoca isikhunta;ngokufanelekileyo ukwandisa uxinzelelo lokubumba.
⑥Uxinzelelo lusemva kwexesha, kwaye izinto ezibunjiweyo zigqibile ukudibanisa kunye nokunyanga phambi kokuzalisa umngxuma wokungunda.⑦ Ukuba iqondo lokushisa lokungunda liphezulu kakhulu, i-cross-linking kunye ne-curring reaction iya phambili, ngoko iqondo lokushisa kufuneka lihliswe ngokufanelekileyo.
(2)Stoma.Kukho imingxunya emincinci eqhelekileyo okanye engaqhelekanga kumphezulu wemveliso, uninzi lwazo ziveliswa phezulu kunye neendonga ezibhityileyo zemveliso.
Indlela yokuvelisa kunye nemilinganiselo yokuthintela:
① Izinto zokubumba ze-SMC ziqulethe umthamo omkhulu womoya kwaye umxholo oguquguqukayo mkhulu, kwaye ukukhupha akuhambanga;isiphumo esityebileyo sezinto ze-SMC asilungile, kwaye igesi ayinakukhutshelwa ngaphandle ngokufanelekileyo.Ezi zizathu zingentla zinokulawulwa ngokufanelekileyo ngokudibanisa ukunyusa inani le-vents kunye nokucoca i-mold.
②Indawo yokutya inkulu kakhulu, ukunciphisa ngokufanelekileyo indawo yokutya kunokulawulwa.Kweyona nkqubo yokusebenza, izinto zabantu zinokubangela i-trachoma.Ngokomzekelo, ukuba i-pressurization isekuqaleni kakhulu, kunokuba nzima ukuba igesi ehlanganiswe kwikhompawundi yokubumba ikhutshwe, ibangele iziphene zomhlaba ezifana neepores kumphezulu wemveliso.
(3)I-Warpage kunye nokuguqulwa.Esona sizathu siphambili kukunyangwa okungalinganiyo kwekhompawundi yokubumba kunye nokuncipha kwemveliso emva kokubunjwa.
Indlela yokuvelisa kunye nemilinganiselo yokuthintela:
Ngethuba lokuphendula ukuphulukiswa kwe-resin, ukwakheka kweekhemikhali kuyatshintsha, kubangela ukuncipha kwevolumu.Ukufana kokunyanga kwenza ukuba imveliso ithande ukujika kwicala lokuqala elinyangisiweyo.Okwesibini, i-coefficient yokwandisa i-thermal yemveliso inkulu kune-mold yensimbi.Xa imveliso ipholile, isantya sayo sokucutheka kwendlela enye inkulu kunendlela enye yokunciphisa ubushushu bomngundo.Ukuza kuthi ga ngoku, ezi ndlela zilandelayo ziyamkelwa ukusombulula ingxaki:
① Nciphisa umahluko weqondo lobushushu phakathi kokungunda okuphezulu kunye nasezantsi, kwaye wenze ukuhanjiswa kwamaqondo obushushu kangangoko kunokwenzeka;
②Sebenzisa izixhobo zokupholisa ukunciphisa ukonakala;
③Ukwandisa ngokufanelekileyo uxinzelelo lokubumba, ukwandisa ukubumbana kolwakhiwo lwemveliso, kunye nokunciphisa izinga lokucutheka kwemveliso;
④ Yandisa ixesha lokulondoloza ubushushu ngokufanelekileyo ukuphelisa uxinzelelo lwangaphakathi.
⑤Hlengisa izinga lokucutheka kwezinto ze-SMC.
(4)Amadyungudyungu.I-semicircular bulge kumphezulu wemveliso enyangisiweyo.
Indlela yokuvelisa kunye nemilinganiselo yokuthintela:
Kungenzeka ukuba izinto eziphathekayo zingaphiliswanga ngokupheleleyo, ubushushu bendawo buphezulu kakhulu, okanye umxholo oguquguqukayo kwizinto eziphathekayo zikhulu, kunye nemigibe yomoya phakathi kwamaphepha, okwenza i-semicircular bulge phezu komgangatho wemveliso.
(①Xa unyusa uxinzelelo lokubumba
(②Yandisa ixesha lokulondoloza ubushushu
(③) Yehlisa iqondo lobushushu lokungunda.
④ Nciphisa indawo yokuphumla
(5)Umbala womphezulu wemveliso awulingani
Indlela yokuvelisa kunye nemilinganiselo yokuthintela:
①Iqondo lobushushu lokungunda alifani, kwaye inxalenye iphezulu kakhulu.Iqondo lobushushu lokungunda kufuneka lilawulwe ngokufanelekileyo;
②Ulwelo olulambathayo lwemathiriyeli yokubumba, ekhokelela ekusasazweni kwefayibha engalinganiyo, ngokubanzi kunokonyusa uxinzelelo lokubumba ukonyusa ukunyibilika kokunyibilika;
③I-pigment kunye ne-resin ayinakuxutywa kakuhle kwinkqubo yokudibanisa incama yemibala.
Ixesha lokuposa: May-04-2021
