Iphepha eliphezulu { Nangona kunjalo, iimeko ezahlukileyo zesicelo ezibonisa umahluko obalulekileyo kwiimfuno zentsebenzo ye-HDPE, esenza ukhetho lwezinto ezifanelekileyo zokuqinisekisa umgangatho weprojekthi kunye nobomi obude. Eli nqaku licwangcisa ngokucwangcisiweyo izicwangciso zokhetho lwe-HDPE ye-HDPE yeZicwangciso-qhinga ezivela kwiimbono ezintathu: Iipropathi ezisisiseko zezinto ezisisiseko, iiparamitha eziphambili zentsebenzo, kunye nemeko yesicelo eqhelekileyo.
Iipropathi ezisisiseko kunye nemigangatho yokuhlelwa kwezixhobo ze-HDPE
I-HDPE yi-crystalline kakhulu i-Polythylene i-relin kunye neemolekyuli zemolekyuli ezipakishwe ziimolekyuli kunye nobunzima obuqhelekileyo ukusuka kwi-0.941 ukuya kwi-0.941 ukuya kwi-0.965 g / cm³. Ngokusekwe kulwahluko kwiinkqubo zemveliso, iimveliso ze-HDPE ze-HDPE kwimarike zinokuhlelwa ukuba zidityaniswe kunye noxinzelelo {{3} {{3} {{3} {{3} {3 Okwangaphambili inika iyunifomu engaphezulu (ukunyamezelana ± 0.5mm) kwaye ilungele izixhobo zokungacacanga. Ezi zinto zinikezela zibonelela ngamandla aphezulu kwimpembelelo (ifuthe amandla empembelelo enkulu okanye ilingana ne-20 kJ / M²) kwaye ilungele izicelo eziphantsi kwemithwalo enamandla.
Ngokwendlela esisiseko yentsebenzo,-}} i-HDPE ye-HDPE ye-HDPE ye-HDPE.
I-1. Ukungaxhathisi kwamachiza: I-Inert kwii-Acids eziqinileyo ezinje nge-sulfuric acid kunye ne-nitric acid kwi-80%, kunye nezinyibilikisi eziqhelekileyo.
2. Uxinzelelo lokusingqongileyo Ukungavisisini
I-3. Ubushushu obushushu obushushu: Akukho ngaphantsi kwenqanaba lama-50 phantsi komthwalo we-1.8 MPA, ukuqinisekisa uzinzo olusezantsi kweemeko eziqhelekileyo zokusebenza.
Isiseko sokukhetha Kwiiparamitha eziphambili zomsebenzi
(1) Ipropathi yoomatshini
Ngezicelo ezixhomekeke kwimithwalo enzima okanye i-fanction rhoqo (njengezixhobo zokusebenza kwemigodi), i-Linders yeMigodi), ukuSebenza kwezinto ngaphandle kweyona nto iphambili. Ngokongeza i-2% - i-5% i-ultra - i-polythylene ephezulu (i-UHMWP) ye-IDLTLE / 1.61 i-CM³ / 1.61 i-CM³ / i-ASTM D1044 i-CM³ Kwizicelo zenkxaso yesakhiwo (ezinjengeenqanaba eziphezulu), kumabakala aqinileyo aphezulu kubantu abanamathele okanye alingane ne-25 MPA kunye ne-elastic modyuli okanye ilingana ne-800 MPA kufuneka ikhethwe.
(2) Izisombululo zokuphucula okungafihlisiyo
Kude {{0} Amaphepha e-HDPE aguqulwe nge-2% -3% ye-carbon yomxholo onokuphucula ukumelana kwemozulu ngamaxesha angama-3-5 (uvavanyo lokwaluphala libonisa umahluko wombala we-δE<3 after 500 hours). For applications involving contact with food or pharmaceutical media, sanitary-grade resins that comply with FDA 21 CFR 177.1520 must be selected to ensure heavy metal migration is less than 0.1 ppm.
(3) Ukuqhubekeka nokuhambelana
Xa amaphepha ajoyinayo esebenzisa idylud ye-thermal, kuyacetyiswa ukukhetha i-Pied {0} - kwibanga lokuhamba nge-0,- 0.3 g / 10 imiz. Oku kuqinisekisa amandla adibeneyo ahlukeneyo (amandla e-Shear ngaphezulu okanye alingana ne-85% yempahla yabazali) ngelixa uphepha ukungcungcutheka kwe-WIVol. Ukufumana ukusika i-CNC, iBakala elisimahla elisimahla nge-MFR> 0.5 g / 10 min kuyacetyiswa ukuba inciphise isixhobo.
Izisombululo zezinto ezibonakalayo zeSicelo esiqhelekileyo
(1) Ukhuseleko lwekhemikhali
Kwizicelo zetanki i-TAKE Imodyuli yolutsha inokuthi ifikelele kwi-1200 MPA ngelixa igcina ukungavisisani kweekhemikhali
(2) Iinkqubo zoKhuselo lweMatshini
Kwisixhobo somatshini sokuhambisa oonogada be--} i-rateried kunye ne-0.8 μm kunye nengqolowa engqonge i-SURE D 60-70 ikhethiwe. Le bhloko i-Bhloko ye-Bhloko yensiphu ye-chip kwaye ithintela ukunxiba kakhulu kumgangatho wesikhokelo.
(3) Izixhobo zoKhuseleko lweNdalo
Iinkqubo zonyango lwe-Dewage Foures, iphepha le-HDPEIRY MDPE enesifo se-FOAMPY YE-0.7 G / CM³ inokunciphisa ubunzima obuyi-40% ngelixa ugcina umthwalo owoneleyo okanye ulingana ne-1.5 t / m²).
Ukukhethwa kwezinto zeshishino ye-HDPE yinkqubo yokuthelekiswa ngokuthe ngqo kwiiparamitha zentsebenzo ezihambelana neemfuno zesicelo. Ngobunjineli, izinto ezininzi, ezinje ngamandla omatshini, ukumelana nokusingqongileyo, kunye nokulungiswa kwe-Economics, kufuneka kuthathelwe ngqo, kwaye ukuthembeka kwesisombululo esikhethiweyo kufuneka kuqinisekiswe ngovavanyo lwe-prototype. Ukuqhubela phambili ngokudibanisa kunye netekhnoloji yokuguqula, izisombululo ze-HDPE ezenzelwe i-HDPE iqhuba isicelo sayo kwizicelo ezininzi. Oku kufuna ukuba zixhobo zinjineli ukuqhubeka ngokuqhubekeka nokuqonda kwabo iindlela zokudibanisa ubume boomatshini bokudibanisa izinto kunye ne-macroscopic.
