Ubusanzwe ni uburyo bwo kuvura ubushyuhe butezimbere ubukana bwibyuma. Nyuma yo gushyushya ibyuma kugeza ku bushyuhe bwa 30-50 ℃ hejuru yubushyuhe bwa Ac3, ubifate mugihe runaka hanyuma umwuka ubikure mu ziko. Ikintu nyamukuru kiranga nuko igipimo cyo gukonja cyihuta kuruta annealing ariko kiri munsi yo kuzimya. Mugihe gisanzwe, ibinyampeke bya kristaline byicyuma birashobora gutunganywa mugihe cyo gukonjesha byihuse, ibyo ntibigere ku mbaraga zishimishije gusa, ahubwo binatezimbere cyane gukomera (AKV agaciro) kandi bigabanya imyumvire yibice byo kumeneka Nyuma yubusanzwe, ibintu byose byubukanishi by'ibyuma bimwe na bimwe bishyushye bishyushye byerekana ibyuma, ibyuma bito bito, hamwe na casting birashobora kunozwa cyane, kandi imikorere yo gukata nayo irashobora kunozwa.
Ubusanzwe bukoreshwa cyane cyane mubikorwa byibyuma. Guhindura no guhuza ibyuma rusange birasa, ariko igipimo cyo gukonja kiri hejuru gato kandi microstructure ni nziza. Ibyuma bimwe bifite umuvuduko muke cyane wo gukonjesha birashobora guhindura austenite muri martensite ukonje mukirere. Ubu buvuzi ntabwo busanzwe kandi bwitwa kuzimya ikirere. Ibinyuranye na byo, ibice bimwe binini byambukiranya ibice bikozwe mu byuma bifite umuvuduko ukabije wo gukonjesha ntibishobora kubona martensite na nyuma yo kuzimya mu mazi, kandi ingaruka zo kuzimya ziri hafi gusanzwe. Ubukomezi bwibyuma nyuma yubusanzwe birarenze ibyo nyuma yo gufatana. Iyo bisanzwe, ntabwo ari ngombwa gukonjesha ibihangano mu itanura nka annealing, bifata igihe gito cy itanura kandi gifite umusaruro mwinshi. Kubwibyo, mubikorwa, ibisanzwe bikoreshwa muri rusange aho guhuza byinshi bishoboka. Kubyuma bya karubone nkeya bifite karubone iri munsi ya 0,25%, ubukana bwagezweho nyuma yubusanzwe buringaniye kandi bworoshye gukata kuruta annealing. Ubusanzwe bukoreshwa mugukata no gutegura akazi. Ku cyuma giciriritse giciriritse gifite karubone ya 0.25-0.5%, mubisanzwe birashobora kandi kuzuza ibisabwa byo gutema. Kubice byoroheje bikozwe muri ubu bwoko bwibyuma, mubisanzwe birashobora no gukoreshwa nkubuvuzi bwa nyuma. Guhindura ibyuma bya karuboni ndende hamwe nicyuma ni ugukuraho karbide y'urusobekerane mumiterere no gutegura imiterere ya annealing.
Ubushuhe bwa nyuma bwo kuvura ibice bisanzwe byubatswe, bitewe nuburyo bwiza bwubukanishi bwibikorwa byakazi nyuma yubusanzwe ugereranije na reta yometse, birashobora gukoreshwa nkubuvuzi bwa nyuma bwubushyuhe bwibice bimwe na bimwe bisanzwe byubatswe hamwe nibibazo bikenerwa, kugirango bigabanye inzira , kuzigama ingufu, no kuzamura umusaruro. Byongeye kandi, kubice bimwe binini cyangwa bigoye bifite ishusho, mugihe hari ibyago byo gucika mugihe cyo kuzimya, mubisanzwe birashobora gusimbuza kuzimya no kuvura ubushyuhe nkubuvuzi bwa nyuma.
Imeri:oiltools14@welongpost.com
Grace Ma
Igihe cyo kohereza: Ukwakira-23-2023
