itekhnoloji ye-cryogenic defiashing yokuqala Yaqalwa ngo-1950s.Kwinkqubo yophuhliso lwe-cryogenic defiashingmachines, iye yadlula ngamaxesha amathathu abalulekileyo.Landela kweli nqaku ukuze ufumane ukuqonda ngokubanzi.
(1) Umatshini wokuqala we-cryogenic deflashing
Igubu elinomkhenkce lisetyenziswa njengesitya sokusebenza somkhenkce, kwaye umkhenkce owomileyo ukhethwa kuqala njengefriji.Iinxalenye eziza kulungiswa zilayishwa kwi-drum, mhlawumbi kunye nokongezwa kweendaba ezisebenzayo eziphikisanayo.Ubushushu obungaphakathi kwigubu bulawulwa ukuba bufike kwindawo apho imiphetho ibhityile ngelixa imveliso ngokwayo ihlala ingachaphazeleki.Ukuze ufezekise le njongo, ubukhulu bemida kufuneka bube ≤0.15mm.Igubu lelona candelo liphambili lesixhobo kwaye likwimo ekwi-octagonal.Into ephambili kukulawula indawo yempembelelo yeendaba ezikhutshiweyo, ukuvumela ukuba ukujikeleza okujikelezayo kwenzeke ngokuphindaphindiweyo.
Igubu lijikeleza ngokuchasene newotshi ukudilika, kwaye emva kwexesha elithile, i-flash edges iba brittle kwaye inkqubo yokuhlela igqityiwe.Isiphene sesizukulwana sokuqala esinomkhenkce sokuqukunjelwa asiphelelanga, ngakumbi imiphetho eshiyekileyo yeflash ekupheleni komgca wokwahlula.Oku kubangelwa kuyilo lokungunda okungonelanga okanye ukutyeba okugqithisileyo kwerabha yomaleko kumgca wokuhlukanisa (omkhulu kuno-0.2mm).
(2) Umatshini wesibini we-cryogenic deflashing
Umatshini wesibini we-cryogenic deflashing wenze uphuculo oluthathu olusekelwe kwisizukulwana sokuqala.Okokuqala, ifriji iguqulwa ibe yinitrogen engamanzi.Umkhenkce owomileyo, kunye ne-sublimation point -78.5 ° C, ayifanelekanga kwi-rubber ephantsi kweqondo lokushisa eliphantsi, njengerabha ye-silicone.I-nitrogen yolwelo, enendawo yokubilisa eyi-195.8 ° C, ifanelekile kuzo zonke iintlobo zerabha.Okwesibini, uphuculo lwenziwe kwisikhongozelo esibamba iindawo eziza kunqunyulwa.Iyatshintshwa ukusuka kwigubu elijikelezayo ukuya kwibhanti lokuhambisa elimise okwebhongo njengomthwali.Oku kuvumela iindawo ukuba ziwele kwi-groove, ukunciphisa kakhulu ukwenzeka kwamabala afileyo.Oku akuphuculi nje ukusebenza kakuhle kodwa kwandisa ukuchaneka kokuhlelwa.Okwesithathu, endaweni yokuthembela kuphela kungquzulwano phakathi kwamacandelo ukususa imiphetho ye-flash edges, imidiya yokuqhuma i-fine-grained yaziswa.Iipelisi zensimbi okanye ezinzima zeplastiki ezinobungakanani be-particle ye-0.5 ~ 2mm zidutshulwa kumphezulu wamacandelo kwi-speed linear ye-2555m / s, ukudala impembelelo ebalulekileyo.Olu phuculo lunciphisa kakhulu ixesha lomjikelo.
(3) Umatshini wesithathu we-cryogenic deflashing
Umatshini wesithathu we-cryogenic deflashing uphuculo olusekelwe kwisizukulwana sesibini.Isikhongozeli samalungu aza kuchetywa sitshintshwa sibe yibhaskithi enamalungu aneendonga ezinemingxuma.Le mingxuma igquma iindonga zebhaskithi ngobubanzi obumalunga ne-5mm (enkulu kunobubanzi beprojectiles) ukuvumela iiprojectiles ukuba zidlule emingxunyeni ngokutyibilikayo kwaye zibuyele phezulu kwisixhobo ukuze zisetyenziswe kwakhona.Oku akugcini nje ukwandisa umthamo osebenzayo wesikhongozeli kodwa kunciphisa umthamo wokugcina wemithombo yeendaba yempembelelo (iiprojectiles) .Ibhaskithi yeengxenye azibekwanga ngokuthe nkqo kumatshini wokucheba, kodwa inotyekelo oluthile (40 ° ~ 60 °).Le angle yokuthambekela ibangela ukuba ibhasikidi ijike ngamandla ngexesha lenkqubo yokuqukumbela ngenxa yokudityaniswa kwemikhosi emibini: enye ingamandla ajikelezayo anikezelwa yibhaskithi ngokwayo ewa, kwaye enye yi-centrifugal force eyenziwa yimpembelelo yeprojekti.Xa le mikhosi mibini idibene, i-360 ° intshukumo ye-omnidirectional iyenzeka, ivumela iinxalenye ukuba zisuse i-flash edges ngokufanayo kwaye ngokupheleleyo kuzo zonke iindlela.
Ixesha lokuposa: Aug-08-2023