Isampulu emalunga ne-100 mm ubude yasikwa kuyo nayiphi na indawo yombhobho womlilo ogqunywe ngeplastiki, kwaye uvavanyo lwempembelelo lwenziwa ngokuhambelana nezibonelelo ezikwiThebhile 2 kwiqondo lobushushu (20±5) ℃ ukujonga umonakalo ukutyabeka kwangaphakathi.Ngethuba lovavanyo, i-weld iya kuba kwicala elichasene nempembelelo yempembelelo, kwaye umphumo wokuvavanya uya kuhambelana nemimiselo ye-5.9.
Iimeko zovavanyo lwempembelelo
Idayamitha yesiqhelo DN
Mm ubunzima behamile, ikhilo ewayo ukuphakama, mm
15-251.0300
32 ~ 502.1500
65
80 ~ 3006.31000
Uvavanyo lwevacuum
Ubude bomzekelo wecandelo lombhobho (500±50) mm.Sebenzisa amanyathelo afanelekileyo ukuvimba ukungena kunye nokuphuma kombhobho, kwaye ngokukhawuleza ukwandise uxinzelelo olubi ukusuka kwi-inlet ukuya kwi-660 mm hg, yigcine i-1 min.Emva kovavanyo, khangela iingubo zangaphakathi, kwaye iziphumo zovavanyo kufuneka zihambelane nemimiselo ye-5.10.
Uvavanyo lobushushu obuphezulu
Ubude bomzekelo wecandelo lombhobho (100±10) mm.Lo mzekelo wafakwa kwi-incubator wafudunyezwa ukuya ku-(300±5) ℃ iyure enye.Emva koko yasuswa kwaye ipholile ngokwemvelo kwiqondo lokushisa eliqhelekileyo.Emva kovavanyo, khupha i-specimen kwaye ukhangele i-coating yangaphakathi (ukubonakala okumnyama kunye nobumnyama kuvunyelwe), kwaye iziphumo zovavanyo kufuneka zihambelane ne-5.11.
Uvavanyo lomjikelo woxinzelelo
Ubude bomzekelo wecandelo lombhobho (500±50) mm.Amanyathelo afanelekileyo asetyenzisiweyo ukuvimba ukungena kunye nokuphuma kombhobho, kwaye umbhobho udibaniswe nenkqubo yokubonelela ngamanzi.Amanzi azaliswe ukususa umoya, kwaye emva koko iimvavanyo ze-3000 ezitshintshanayo ze-hydrostatic ukusuka (0.4±0.1) MPa ukuya kwi-MPa zaqhutywa, kwaye ixesha lovavanyo ngalunye lalingekho ngaphezu kwe-2 s.Emva kovavanyo, i-coating yangaphakathi iya kujongwa kwaye uvavanyo lokunamathela luya kwenziwa ngokwemiqathango ye-6.4, kwaye iziphumo zovavanyo ziya kuhambelana nemimiselo ye-5.13.
Uvavanyo lomjikelo wobushushu
Ubude bomzekelo wecandelo lombhobho (500±50) mm.Iisampulu zibekwe iiyure ezingama-24 kwiqondo lobushushu ngalinye ngolu hlobo lulandelayo:
(50±2) ℃;
(-10±2) ℃;
(50±2) ℃;
(-10±2) ℃;
(50±2) ℃;
(-10±2) ℃.
Emva kovavanyo, lo mzekelo wabekwa kwindawo enobushushu obuyi-(20±5) ℃ kangangeyure ezingama-24.Ukugquma kwangaphakathi kuhlolwe kwaye uvavanyo lokunamathela lwenziwa ngokwemiqathango ye-6.4.Iziphumo zovavanyo kufuneka zingqinelane nemigaqo ka-5.14.
Uvavanyo lokuguga kwamanzi ashushu
Ubungakanani kunye nobude bomzekelo wecandelo lombhobho malunga ne-100 mm.Iindawo eziveziweyo kuzo zombini iziphelo zecandelo lombhobho kufuneka ziphathwe nge-anticorrosion.Icandelo lombhobho kufuneka lifakwe emanzini adibeneyo (70±2) ℃ iintsuku ezingama-30.
Iimpawu zosasazo lomhleli
(1) Iimpawu eziphezulu zemishini.I-epoxy resin inokubambisana okuqinileyo kunye ne-compact molecular structure, ngoko ke iipropati zayo ze-mechanical ziphezulu kune-phenolic resin kunye ne-polyester engaxutywanga kunye nezinye i-universal thermosetting resins.
(2) Umbhobho womlilo wePlastiki usebenzisa i-epoxy resin, kunye nokubambelela okuqinileyo.Inkqubo yokunyanga ye-epoxy resin iqulethe iqela le-epoxide esebenzayo kakhulu, iqela le-hydroxyl, ibhondi ye-ether, ibhondi ye-amine, ibhondi ye-ester kunye namanye amaqela e-polar, enika i-epoxy imathiriyeli enyangwayo ngokunamathela ngokugqwesileyo kwintsimbi, i-ceramic, iglasi, ikhonkrithi, iinkuni kunye nezinye ii-polar substrates. .
(3) izinga lokucutheka lokunyanga lincinci.Ngokubanzi 1% ~ 2%.Yenye yeendidi ezinezona zincinci zokunyanga i-shrinkage kwi-thermosetting resin (i-phenolic resin yi-8% ~ 10%; i-resin ye-polyester engaxutywanga yi-4% ~ 6%; i-silicone resin 4% ~ 8%).I-Coefficient yokwandisa i-linear nayo incinci kakhulu, ngokubanzi yi-6×10-5/℃.Ngoko umthamo utshintsha kancinci emva kokunyanga.
(4) Iteknoloji elungileyo.Ukunyanga i-epoxy resin ayivelisi ii-volatiles ezisezantsi zemolekyuli, ngoko ke kunokubakho ukubumba koxinzelelo oluphantsi okanye ukucofa ukubumba.Iyakwazi ukusebenzisana nazo zonke iintlobo ze-ejenti yokunyanga ukuvelisa i-solvent-free, high solid, i-powder coating kunye ne-coating esekwe emanzini kunye nezinye iingubo ezihambelana nokusingqongileyo.
(5) Ukufakelwa kombane okugqwesileyo.I-Epoxy resin yintlaka ye-thermosetting eneempawu ezilungileyo ze-antistatic.
(6) Ukuzinza okulungileyo, ukuchasana okugqwesileyo kwiikhemikhali.I-epoxy resin ngaphandle kwe-alkali, ityuwa kunye nezinye izinto ezingcolileyo akulula ukuwohloka.Ngethuba nje igcinwe ngokufanelekileyo (itywinwe, ingachaphazeleki ngumswakama, kungekhona kwiqondo lokushisa eliphezulu), ixesha lokugcinwa kwayo ngumnyaka we-1.Isenokusetyenziswa ukuba ifanelekile emva kokuphelelwa yisikhathi.Izinto eziphilisiweyo ze-epoxy zinozinzo oluhle kakhulu lweekhemikhali.Ukumelana nokubola kwe-alkali, i-asidi, ityuwa kunye nezinye imidiya zingcono kune-resin ye-polyester engaxutywanga, i-phenolic resin kunye nenye i-thermosetting resin.Ke ngoko, i-epoxy resin isetyenziswa ngokubanzi njenge-anticorrosive primer, kwaye ngenxa yokuba i-epoxy resin yokunyanga imathiriyeli iyisakhiwo sothungelwano esinamacala amathathu, kwaye inokumelana nokungena kwe-oyile, njl. udonga lwangaphakathi lwetanki iyonke.
(7) I-epoxy ephilisa ukumelana nobushushu ngokuqhelekileyo yi-80 ~ 100℃.Iintlobo ze-epoxy resin ukumelana nobushushu zinokufikelela kuma-200℃ okanye ngaphezulu.
Iinzuzo zemveliso
(1) Umbhobho wentsimbi yeplastiki egqunyiweyo unamandla omatshini aphezulu, alungele ukusetyenziswa okusingqongileyo;
(2) I-coating yangaphakathi nangaphandle inokuthintela i-oxidation yesinyithi kwaye inokumelana nokunyuka kweekhemikhali;
(3) i-coating ine-adhesion eyomeleleyo, amandla aphezulu okudibanisa kunye nokuchasana kwempembelelo elungileyo;
(4) I-coefficient ye-roughness ephantsi kunye ne-friction coefficient, ukuchasana okugqwesileyo kumzimba wangaphandle;
5
Ixesha lokuposa: May-23-2022