4j42i-iron-nickel fixed expansion alloy, ikakhulukazi eyakhiwe ngensimbi (Fe) kanye ne-nickel (Ni), enokuqukethwe kwe-nickel okungama-41% kuya ku-42%. Ngaphezu kwalokho, iqukethe nenani elincane lezakhi zokulandelela ezifana ne-silicon (Si), i-manganese (Mn), i-carbon (C), ne-phosphorus (P). Lokhu kwakheka kwekhemikhali okuyingqayizivele kunikeza ukusebenza okuhle kakhulu.

Ekuqaleni kwekhulu lama-20, ngokukhula kobuchwepheshe be-elekthronikhi, i-aerospace kanye neminye imikhakha, izidingo eziphakeme zabekwa phambili zezindawo zokunweba ezishisayo kanye nezakhiwo zemishini yezinto zokwakha, futhi abacwaningi baqala ukuhlola izinto ze-alloy ezinezakhiwo ezithile. Njengengxube ye-iron-nickel-cobalt, ucwaningo nokuthuthukiswa kwe-4J42 yokwandisa i-alloy ifanele ukuhlangabezana nezidingo zale mikhakha yokusebenza kwezinto ezibonakalayo. Ngokuqhubeka nokulungisa okuqukethwe kwezinto ezifana ne-nickel, i-iron, ne-cobalt, uhla lokuqanjwa olulinganiselwe lwe-4J42 alloy luye lwanqunywa kancane kancane, futhi abantu sebeqalile nokuthola izicelo zokuqala kweminye imikhakha enezidingo eziphezulu zokusebenza kwempahla.

Ngokuthuthuka okuqhubekayo kwesayensi nobuchwepheshe, izidingo zokusebenza ze-4J42 expansion alloy nazo ziya ngokuya ziba phezulu. Abacwaningi bayaqhubeka nokuthuthukisa ukusebenza kwe-alloy ye-4J42 ngokuthuthukisa izinqubo zokukhiqiza nokuthuthukisa ukwakheka kwe-alloy. Isibonelo, ukusetshenziswa kobuchwepheshe bokuncibilikisa obuthuthuke kakhulu kanye nobuchwepheshe bokucubungula kuye kwathuthukisa ukuhlanzeka nokufana kwe-alloy, futhi kwanciphisa nakakhulu umthelela wezinto ezingcolile ekusebenzeni kwe-alloy. Ngesikhathi esifanayo, inqubo yokwelapha ukushisa kanye nenqubo ye-welding ye-4J42 alloy nayo icutshungulwe ngokujulile, futhi imingcele yenqubo yesayensi nenengqondo iye yakhiwe ukuze kuthuthukiswe ukusebenza kokucubungula nokusebenzisa ukusebenza kwe-alloy.

Eminyakeni yamuva, ngokuthuthukiswa okusheshayo kwe-electronics, i-aerospace, yezokwelapha nezinye izinkambu, isidingo se-alloy yokwandisa i-4J42 siye saqhubeka sanda, futhi insimu yesicelo iye yaqhubeka yanda. Emkhakheni wezogesi, ngokuthuthuka okuqhubekayo kwamasekethe ahlanganisiwe, amadivaysi e-semiconductor, njll., izidingo zezinto zokupakisha ziya ngokuya ziba phezulu. I-4J42 alloy isibe yinto ebalulekile emkhakheni wokufakwa kwe-elekthronikhi ngenxa yokusebenza kwayo okuhle kokunwetshwa kokushisa nokusebenza kwe-welding.

Ngokuthuthuka okuqhubekayo kobuchwepheshe bokukhiqiza, ukunakwa okwengeziwe kuzokhokhwa ekuthuthukiseni ubumsulwa be-alloy nokunciphisa okuqukethwe kwezinto ezingcolile esikhathini esizayo. Lokhu kuzothuthukisa futhi ukuzinza kokusebenza kwengxubevange, kunciphise ukushintshashintsha kokusebenza okubangelwa ukungcola, futhi kuthuthukise ukwethembeka kwengxubevange ekusetshenzisweni okunemba okuphezulu. Isibonelo, emkhakheni wokupakishwa kwe-elekthronikhi, ukuhlanzeka okuphezulu kwe-4J42 alloy kungaqinisekisa ukuzinza kwesikhathi eside nokusebenza okuphezulu kwezingxenye ze-elekthronikhi.