Emkhakheni wokulinganisa ukunemba, umshini wokulinganisa wezixhumanisi ezintathu uyisisetshenziswa esiyinhloko sokulawula ikhwalithi yomkhiqizo, futhi isisekelo sisebenza njengesisekelo sokusebenza kwawo okuzinzile. Ukusebenza kwayo kwe-thermal deformation kunquma ngokuqondile ukunemba kokulinganisa. I-Granite ne-cast iron, njengezinto ezimbili eziyisisekelo ezijwayelekile, sekuyisikhathi eside iheha ukunaka okukhulu ngomehluko wayo ekuguquguqukeni kokushisa. Ngobuchwepheshe bokubona ngeso lengqondo bezithombe ezishisayo, singadalula ngokuqondile umehluko obalulekile ekuzinzeni kokushisa phakathi kwakho kokubili, sinikeze isisekelo sesayensi sokukhethwa kwemishini embonini yokukhiqiza enembayo.
Ukuguqulwa kwe-Thermal: "Umbulali Ongabonakali" Othinta Ukunemba Kokulinganisa Okudidiyelwe Okuthathu
Umshini wokulinganisa wezixhumanisi ezintathu uthola idatha enezinhlangothi ezintathu ngokuthintana kwe-probe nento elinganiswayo. Noma yikuphi ukuguquka kokushisa kwesisekelo kuzobangela ukuthi inkomba yokulinganisa ishintshe. Endaweni yezimboni, izinto ezifana nokukhiqiza ukushisa ngesikhathi sokusebenza kwemishini kanye nokuguquguquka kwezinga lokushisa lemvelo konke kungabangela ukwanda okushisayo noma ukufinyela kwesisekelo. Ukuguquka kokushisa okuncane kungabangela ukuchezuka kwendawo ku-probe yokulinganisa, ekugcineni kuholele emaphutheni okulinganisa. Ezimbonini ezinezidingo zokunemba okuphezulu kakhulu njenge-aerospace nama-semiconductors, amaphutha abangelwa ukuwohloka kwe-thermal angase aholele ekukhishweni komkhiqizo noma ekuwohlokeni kokusebenza. Ngakho-ke, ukuzinza okushisayo kwesisekelo kubaluleke kakhulu.
Isithombe esishisayo: Sibona ngeso lengqondo umehluko ekuwohlokeni kokushisa
Izithombe ezishisayo zingaguqula ukusatshalaliswa kwezinga lokushisa endaweni engaphezulu yento kube izithombe ezibonakalayo. Ngokuhlaziya izinguquko zokushisa ezindaweni ezihlukene, bangakwazi ukwethula ngokubonakalayo isimo sokushisa esishisayo. Esivivinyweni, sikhethe izisekelo zomshini wokulinganisa we-granite nensimbi yensimbi enezixhumanisi ezintathu zesicaciso esifanayo, silingisa ukukhiqiza ukushisa ngesikhathi sokusebenza kwezisetshenziswa ngaphansi kwendawo efanayo, futhi sasebenzisa isithombe-sithombe esishisayo ukuze sirekhode izinguquko zezinga lokushisa nezinqubo zokuwohloka kokushisa kwakho kokubili.
Isisekelo se-cast iron: Ukuguquka kokushisa okuphawulekayo nokuzinza okukhathazayo
Isithombe sesithombe esishisayo sibonisa ukuthi ngemuva kokuba isisekelo sensimbi ekhonjiwe sisebenze imizuzu engama-30, kuba nokusatshalaliswa okuphawulekayo okungalingani kwezinga lokushisa elingaphezulu. Ngenxa ye-thermal conductivity engalingani ye-cast iron, izinga lokushisa endaweni yendawo yesisekelo likhuphuka ngokushesha, futhi umehluko phakathi kwamazinga okushisa aphezulu kakhulu naphansi kakhulu ungafinyelela ku-8-10 ℃. Ngaphansi kwesenzo sokucindezeleka okushisayo, isisekelo se-iron cast siba nokukhubazeka okuncane okubonakala ngeso lenyama. Itholwe ngemishini yokulinganisa enembayo ephezulu ukuthi ukuguqulwa kosayizi wayo womugqa kufinyelele ku-0.02-0.03mm. Lokhu kuguqulwa kungabangela iphutha lokulinganisa ukuthi likhule libe ngu-±5μm, kuthinte kabi ukunemba kokulinganisa. Ngaphezu kwalokho, ngemva kokuba isisekelo sensimbi esakhiwe siyeka ukusebenza, ukushisa kuncipha kancane kancane futhi kuthatha isikhathi esingangehora elingu-1 kuya kwangu-2 ukubuyela esimweni sokuqala, okukhawulela kakhulu amandla okusebenza okuqhubekayo kwemishini.
Isisekelo se-Granite: Ukuzinza okuhle kakhulu kwe-thermal kuqinisekisa ukunemba kokulinganisa
Ngokuphambene kakhulu, isisekelo se-granite sibonisa ukuzinza okuhle kakhulu kokushisa ngesikhathi sokusebenza. Izithombe zezithombe ezishisayo zibonisa ukuthi izinga lokushisa elingaphezulu lilingana. Ngemuva kwehora elilodwa lokusebenza, umehluko omkhulu wokushisa endaweni eyisisekelo ngu-1-2 ℃ kuphela. Lokhu kubalulwe ku-coefficient ephansi kakhulu yokunwetshwa okushisayo kwe-granite (5-7 × 10⁻⁶/℃) kanye nokufana kwayo okuhle kakhulu kwe-thermal conductivity. Ngemva kokuhlola, ukuhluka komugqa womugqa wesisekelo segwadle ngaphansi kwezimo ezifanayo zokusebenza kungaphansi kuka-0.005mm, futhi iphutha lokulinganisa lingalawulwa ngaphakathi kuka-±1μm. Ngisho nangemva kokusebenza okuqhubekayo kwesikhathi eside, isisekelo se-granite sisengakwazi ukugcina isimo esizinzile, futhi ngemva kokuyeka ukusebenza, izinga lokushisa libuyela ngokushesha esimweni esizinzile, linikeze ireferensi ethembekile yesilinganiso esilandelayo.
Ngesethulo esinembile nokuqhathaniswa kwedatha yesithwebuli sesithombe esishisayo, inzuzo yegwadle ekuzinzeni kokushisa isobala. Emabhizinisini akhiqizayo aphishekela ukunemba okuphezulu, ukukhetha umshini wokulinganisa wezixhumanisi ezintathu onesisekelo segwadle kunganciphisa ngempumelelo amaphutha okulinganisa abangelwa ukuwohloka kwe-thermal futhi kuthuthukise ukunemba nokusebenza kahle kokuhlolwa komkhiqizo. Njengoba imboni yokukhiqiza iqhubekela ekunembeni nasekuhlakanipheni okuphezulu, izisekelo zegwadle, ezinokuqina kwazo okushisayo okuvelele, zizoba yimpahla ekhethwayo yemishini yokulinganisa edidiyelwe kathathu kanye nemishini enembayo nakakhulu, okuqhubeza izinga lokulawula ikhwalithi lemboni lifinyelele ukuphakama okusha.
Isikhathi sokuthumela: May-13-2025