Intshayelelo yoYilo
Iimveliso ezibunjiweyo ezivuthelweyo zisetyenziswa kakhulu kumashishini ahlukeneyo, ngakumbi kwishishini lokupakisha iziselo kunye neziyobisi, kunye nakwishishini lokudlala.
Yenza utshintsho lwe-R kwimida kunye neekona
Ngokuqhelekileyo, iikona kunye neekona zeemveliso ezibunjiweyo zokuvuthela kufuneka zenziwe kwinguqu ye-R, kuba umlinganiselo omkhulu wokuvuthela okwandisa kwiikona ezibukhali kulula ukubangela ubuninzi bodonga olungalinganiyo, kunye neekona ezibukhali zikwalula ukuvelisa ukuqhekeka koxinzelelo, kunye nenguqu ye-R. yeemveliso ungenza ukutyeba kodonga lweemveliso ezifanayo.
Ukwandisa uyilo lolwakhiwo kuxinzelelo, uxinzelelo kunye ne-torsion
Ngeemfuno ezahlukeneyo zemveliso, olunye uyilo lolwakhiwo kuxinzelelo, uxinzelelo kunye ne-torsion nalo lunokongezwa:
1. Ukuba ufuna ukunyusa ukuchasana kwe-longitudinal yemveliso, unokwenza ezinye izinto eziqinileyo ecaleni kwendlela yoxinzelelo.
2. Ukuze kuphuculwe ukusebenza kwe-anti-collapse yeemveliso, umphezulu unokuphinda uyilwe kwisakhiwo se-arc esilungele ukuxinzezeleka kunye nokuncedisa iimbambo zokuqinisa.Igxalaba leemveliso zebhotile kufuneka lithambekele, lingabi flat kwaye liqonde.
Ngokuqhelekileyo, ibhotile ephantsi yenziwe ibe yimo yeconcave ukwandisa amandla kunye nokuzinza kokubeka.Umzekelo, sihlala sibona iibhotile ezineoyile etyiwayo kunye neemilo zeconcave-convex ngaphezulu, ezingenako ukunyusa kuphela amandla omzimba webhotile, kodwa ziququzelele ukuleyibhelishwa kweempawu zorhwebo.
Iimfuno kunye nokuqaliswa kwezixhobo zokubumba zokuvuthela
Uphuhliso kunye nokusetyenziswa kobuchwephesha bokubumba bubanzi kakhulu, nto leyo ehambelana nophuhliso lwezixhobo zokubumba.Izinto zokubumba zokuvuthela ziye zaphuhliswa ngokuthe ngcembe ukusuka kwimveliso ye-LDPE, i-PET, i-PP kunye ne-PVC yokuvuthela iiplastiki zobunjineli, irabha kunye nezinye izinto ezidibeneyo.
Iimfuno ezikhethekileyo zezinto zerabha kwiinkalo ezahlukeneyo zokuvuthela iplastiki
1. Extrusion blow blowing
Ukubumba ukuvuthela kwe-Extrusion kuqhutyelwa kwimeko yokuhamba kwe-viscous, ukuze kuncitshiswe i-parison sag kunye nokwandisa ukusabalalisa kodonga, iplastiki enobunzima obukhulu be-molecular idla ngokusetyenziswa.
2. Ukubumba isitofu sokuvuthela
I-injection blow blowing iqhutyelwa kwi-elastic state ephezulu.Ukunciphisa ukusetyenziswa kwamandla kwi-parison yokubumba inaliti, enye iplastiki ekulula ukuhamba (iplastiki enobunzima obuncinane be-molecular) isetyenziswa.
3. Isitofu solula ukuvuthela ukubumba
Iplastiki yeAmorphous isetyenziswa ngokubanzi.Ngenxa yamandla amancinci e-intermolecular entanglement yeplastiki ye-amorphous, kulula ukuyolula.Nangona i-PET ikwayikristale, iseyeyona nto ibalulekileyo yokubunjwa kwesixhobo, kwaye isantya sekristale sicotha kakhulu.Ngamafutshane, uninzi lweeplastiki zebakala lokuvuthela ziphakathi ukuya kokusabalalisa ubunzima bemolekyuli.
Uhlobo lwezinto zokubumba zokuvuthela
1. IiPolyolefins
I-HDPE, i-LLDPE, i-LDPE, i-PP, i-EVA isetyenziselwa ukuvuthela iimveliso zamashishini, izitya kunye nezixhobo zokudlala, izitya zokugcina imichiza, njl.
2. Ipolyester ye-Thermoplastic
I-PETG kunye ne-PETP zisetyenziselwa ukuvuthela iibhotile zesiselo sesiselo se-carbonated kunye neebhotile zewayini, ezithe zathatha indawo ye-PVC ngokuthe ngcembe kwaye zisetyenziswa ngokubanzi.Ukungalungi kukuba iindleko zabo ziphezulu, kwaye zisetyenziselwa ukubumba i-injection-drawing blow blowing.
3. Iiplastiki zobunjineli (ialloyi)
I-ABS, i-SAN, i-PS, i-PA, i-POM, i-PMMA, i-PPO, njl. njl. ziye zasetyenziswa ngokuthe ngcembe kwiimoto, amayeza, izixhobo zasekhaya, imboni yeekhemikhali kunye namanye amashishini, ngakumbi i-PC kunye neeplastiki zayo ezixubileyo, ezingasetyenziselwa ukuvuthela umgangatho ophezulu. izitya kunye neemveliso zeemoto (PC / ABS, njl.).
4. Thermoplastic elastomer
Ngokubanzi, i-SBS, i-SEBS, i-TPU, i-TPE kunye nezinye iikhompawundi zokubumba zisetyenziselwa, ngelixa iiplastiki ze-thermosetting, i-rubber evuthwe kunye ne-PE edibeneyo ayinakubunjwa.
Isishwankathelo:
Izinto eziqhelekileyo zokubumba ukuvuthela ngesitofu
I-PE, i-PET, i-PVC, i-PP, i-PC kunye ne-POM zisetyenziselwa izikhongozeli kunye neengxenye zesakhiwo ngokuchaneka okuphezulu kokubumba kunye nomthamo omncinci.
Ixesha lokuposa: Mar-22-2023