Umenzi ochwephesha woomatshini be-thermoforming.
Ulwimi
Umenzi ochwephesha woomatshini be-thermoforming.
Ukusebenza kokwenza iindlela ezahlukeneyo zokubumba ikakhulu kukugoba kunye nokwelula ishidi elifudunyeziweyo ngokweemfuno ezimiselweyo ngokusebenzisa amandla. Eyona mfuneko isisiseko sokubumba kukwenza udonga lodonga lwemveliso lube yinto efanayo ngokusemandleni. Izizathu eziphambili zobunzima bodonga obungalinganiyo beemveliso zezi: okokuqala, iqondo lokwelula inxalenye nganye yephepha elibunjiweyo lihlukile; okwesibini, ubungakanani besantya esolulayo, oko kukuthi, isantya sokuhamba kwerhasi yokutsalwa komoya kunye nokunyuka kwamaxabiso okanye isantya esishukumayo sokungunda, isakhelo sokugoba kunye ne-pre stretching plunger. Ukuqulunqa enye inkqubo ebalulekileyo emva kokufudumeza kwepleyiti (ishidi), kubandakanywa nokulawulwa kweeparitha ezibalulekileyo zobugcisa ezifana nokubumba ukushisa, ukwenza uxinzelelo kunye nokwenza isantya.
①Oomatshini bePlastiki beThermoforming Ukubumba Ubushushu
Emva kokuba izinto, uhlobo lwenkqubo kunye nezixhobo zichongiwe, ubushushu bokubumba yeyona nto iphambili echaphazela umgangatho wemveliso, echaphazela ngokuthe ngqo ubuncinci obuncinci, ukusabalalisa ubukhulu kunye nempazamo yobukhulu bemveliso, kwaye ikwachaphazela ukwanda kunye namandla okuqina kwemveliso. , kwaye ichaphazela nesantya sokwenza. Ngoko ke, ifanele ithathwe ngokungathí sina. Xa ishidi le-thermoforming lifudumala, qinisekisa ukuba yonke indawo yokubumba ishushu ngokulinganayo kwaye iqondo lokushisa lifanelekile.
Ngokwendlela yokusebenza, elona qondo lobushushu lokubumba liqondo lobushushu apho ubude beplastiki buphezulu. Ukuba uxinzelelo olubangelwa luxinzelelo lokubumba lukhulu kunamandla okuqina eplastiki kolu bushushu, ishidi liya konakala kakhulu kwaye lonakaliswe. Ngeli xesha, ubushushu bokubumba okanye ukunyanzeliswa kokubumba kufuneka kuncitshiswe. Ubushushu obuphantsi bokubumba bunokunciphisa ixesha lokupholisa kunye nokugcina amandla, kodwa imilo kunye nokuzinza kwe-dimensional yemveliso kuya kuba nzima, kwaye inkcazo yenkcazo iya kuba mbi. Kwiqondo lokushisa eliphezulu lokubumba, ukuguqulwa kwemveliso kuba yincinci, kwaye imilo kunye nobukhulu buzinzile. Nangona kunjalo, iqondo lobushushu eliphezulu kakhulu liya kubangela ukuthotywa kweresin kunye nokonakala kwempahla. Kweyona nkqubo yokuvelisa i-thermoforming, kukho ixesha elithile phakathi kokufudumeza kunye nokwenza iphepha, kwaye ubushushu buya kulahleka, ngakumbi kwiphepha elibhityileyo elinomthamo omncinci wobushushu obuthile. Obona bushushu bobushushu beshiti buphezulu kakhulu, kwaye elona qondo lobushushu lokuyila limiselwa ngokubanzi ngemifuniselo kunye nemveliso.
Isantya esolula sihambelana ngokusondeleyo neqondo lokushisa xa ishidi lenziwe. Ukuba iqondo lokushisa liphantsi kwaye umthamo we-sheet deformation uncinci, iphepha kufuneka lolulwe kancinci. Ukuba isantya esiphezulu sokwelula samkelwa, iqondo lokushisa ngexesha lokwelula kufuneka linyuswe. Kuba iphepha lisakhupha ubushushu kwaye liphole xa libunjwa, isantya solula seshiti esibhityileyo siphezulu kuneshiti elishinyeneyo.
②Oomatshini bePlastiki beThermoforming Ukwenza Uxinzelelo
Isiphumo soxinzelelo senza ukuba iphepha liguqulwe, kodwa izinto eziphathekayo ziyakwazi ukuxhathisa i-deformation, kunye ne-elastic modulus yayo iyancipha ngokunyuka kweqondo lokushisa. Kwiqondo lokushisa lokubumba, kuphela xa uxinzelelo olubangelwa uxinzelelo kwizinto eziphathekayo lukhulu kunemodyuli ye-elastic yezinto eziphathekayo kule bushushu ingaba yinto enokukhubazeka. Ukuba uxinzelelo olusetyenzisiweyo kwiqondo lokushisa elithile alunelanga ukuvelisa ukunyusa okwaneleyo kwezinto, ukubunjwa kunokwakheka ngokufanelekileyo kuphela ngokunyusa uxinzelelo lokubumba okanye ukwandisa ubushushu bokubumba. Ngenxa yokuba i-elastic modulus yezixhobo ezahlukeneyo yahlukile kwaye inokuxhomekeka okwahlukileyo kwiqondo lobushushu, uxinzelelo lokubumba luyahluka ngohlobo lwepolymer (kubandakanywa nobunzima bemolekyuli), ubukhulu beshiti kunye nobushushu bokubumba. Ngokuqhelekileyo, iiplastiki ezinobunzima be-molecular chain rigidity, ubunzima obuphezulu bemolekyuli kunye namaqela e-polar adinga uxinzelelo oluphezulu lokubumba.
Ukongeza kwimpembelelo yobushushu bokubumba, iqondo lobushushu lokungunda kunye nesiphumo sokuzoba, ukuchaneka kwemveliso egqityiweyo yamacandelo e-thermoformed ubukhulu becala kuxhomekeke kuxinzelelo olusebenzayo lokubumba phakathi kweendawo ze-thermoformed kunye nokubumba.
Uxinzelelo oluqhelekileyo lokubumba (ukubunjwa kwamadoda): 0.2-0.3mpa kwiindawo ezibunjiweyo zendawo enkulu; Amalungu amancinci ukuya kuthi ga kwi-0.7MPa. Ukubumba i-vacuum, uxinzelelo lokubumba luphantsi kwaye ubukhulu becala luxhomekeke kuxinzelelo lwe-atmospheric. Kwi-altitude ye-0, xa kusetyenziswa ipompo yokucoca i-vacuum ephezulu, uxinzelelo lokubumba lunokufikelela malunga ne-1 MPa.
Ekubeni uxinzelelo oluveliswa yi-vacuum lulingana nokwahlukana koxinzelelo phakathi koxinzelelo lwe-atmospheric kwelinye icala lezinto zokubumba kunye ne-vacuum eyenziwa kwelinye icala, uxinzelelo lokubumba luxhomekeke kuxinzelelo lomoya kunye neqondo lokutywinwa. Ngoko ke, nangona ipompo yokucoca i-vacuum isetyenzisiweyo, uxinzelelo lokubumba luya kuqhubeka lunciphisa ngokunyuka kokuphakama.
③Oomatshini bePlastiki beThermoforming Ukuqulunqa isantya
Izizathu eziphambili zobunzima bodonga obungalinganiyo beemveliso zezi: okokuqala, iqondo lokwelula inxalenye nganye yephepha elibunjiweyo lihlukile; okwesibini, ubungakanani besantya esolulayo, oko kukuthi, isantya sokuhamba kwerhasi yokutsalwa komoya kunye nokunyuka kwamaxabiso okanye isantya esishukumayo sokungunda, isakhelo sokugoba kunye ne-pre stretching plunger. Isantya sokubumba sibhekisa kwisantya somzobo wepleyiti (ishidi). Ukwandisa isantya sokubumba kunokunciphisa umjikelo wokwenza kwaye kunenzuzo ekuphuculeni imveliso. Nangona kunjalo, isantya sokwenza ngokugqithisileyo siya kuchaphazela umgangatho wemveliso. Ngokuqhelekileyo, isantya esiphezulu somzobo sinenzuzo ekuzenzeleni kunye nokunciphisa ixesha lokujikeleza, kodwa umzobo okhawulezayo udla ngokubangela ukuba ubukhulu bodonga lwe-concave kunye neenxalenye ze-convex zemveliso zibe zincinci kakhulu ngenxa yokungaphumeleli ukuhamba; Nangona kunjalo, ukuba ukolula kucotha kakhulu, umthamo we-deformation wephepha uya kuncipha ngenxa yokupholisa okugqithisileyo, kwaye imveliso iya kuqhekeka.
Isenzo sokubumba siqhutywa nguxinzelelo lwe-hydraulic, uxinzelelo lomoya okanye i-motor. Ngethuba lokubumba okutshisayo, ipleyiti yeplastiki (iphepha) iya kunwenwa kwaye ikhubazeke phantsi koxinzelelo okanye i-plunger. Isantya sokwelula sezinto zihluke kunye nesantya sokwenza. Isantya sokusebenza sobumba sinokulawulwa ngamanqanaba, kwaye indlela yokukhawuleza kuqala kwaye icotha kamva ikhethwa ngokubanzi. Isantya sentshukumo somngundo kufuneka sihambelane nesantya sokuzolula kwangaphambili. Ukuba isenzo sicotha kakhulu, ubushushu beplate buya kuncipha, obungenakulungeleka ukubunjwa, kwaye ukuba isenzo sihamba ngokukhawuleza, ipleyiti inokukrazulwa. Kwiphepha elinobunzima obuthile, ubushushu bokufudumala buya kunyuswa ngokufanelekileyo kwaye isantya sokwenza ngokukhawuleza siya kwamkelwa.
Umenzi ochwephesha woomatshini be-thermoforming.
