Automobile precision bright tube uruganda
Umuyoboro mwiza cyane ni ubwoko bwibikoresho byuma bisobanutse neza nyuma yo gushushanya neza cyangwa kuzunguruka gukonje. Kuberako nta gice cya oxyde kiri kurukuta rwimbere ninyuma rwumuyoboro wuzuye, nta gutemba munsi yumuvuduko mwinshi, neza cyane, kurangiza cyane, nta guhindagurika mugukonja gukonje, gucana, gusibanganya no kutavunika, bikoreshwa cyane cyane mugukora ibicuruzwa y'ibice bya pneumatike cyangwa hydraulic, nka silindiri yo mu kirere cyangwa silinderi y'amavuta, bishobora kuba umuyoboro udafite kashe cyangwa umuyoboro usudira. Ibigize imiti yibikoresho byiza birimo karubone C, silicon Si, manganese Mn, sulfure s, fosifore P na chromium CR. Ibyuma bya karubone nziza cyane, kurangiza kuzunguruka, kudakoresha ubushyuhe bukabije (leta ya NBK), kugerageza kutangiza, gukaraba no gukaraba cyane umuvuduko wicyuma cyimbere imbere hamwe nibikoresho byihariye, kuvura antirusti hamwe namavuta ya antirusti kumuyoboro wibyuma, hamwe no kuvura umukungugu hamwe nigifuniko. ku mpande zombi. Urukuta rwimbere ninyuma rwumuyoboro wibyuma birasobanutse neza kandi birangiye. Nyuma yo kuvura ubushyuhe, umuyoboro wibyuma ntugira urwego rwa oxyde hamwe nisuku ryinshi ryurukuta rwimbere. Umuyoboro w'icyuma ufite umuvuduko mwinshi, ntuhinduka mugihe gikonje gikonje, kandi ntigishobora gucika mugihe cyo gutwika no gutambika. Umuyoboro wibyuma urashobora gutunganywa muburyo butandukanye bwo guhindura no gutunganya. Ibara ry'icyuma: ibara ryera rifite umucyo mwinshi. Ibikoresho byimodoka nubukanishi bifite ibisabwa byinshi kugirango bisobanuke neza kandi birangire imiyoboro yicyuma. Abakoresha imiyoboro yicyuma ntabwo ari abakoresha gusa ibisabwa byinshi kugirango babone neza kandi barangize. Kuberako umuyoboro utomoye ufite ubusobanuro buhanitse kandi kwihanganira bishobora kugumishwa ku nsinga 2-8, abakoresha imashini benshi bahindura buhoro buhoro umuyoboro wicyuma udafite icyuma cyangwa ibyuma bizunguruka mu muyoboro wuzuye kugirango babike akazi, ibikoresho nigihe.
Imiterere ya martensite iboneka mukuzimya umuyoboro wuzuye kandi ugashyuha mubushyuhe bwa 450 ~ 600 ℃; Cyangwa nyuma yo gushyuha kuri 650 ℃, unyure muri 350 ~ 600 ℃ ku gipimo cyo gukonja gahoro; Cyangwa nyuma yo gushyuha kuri 650 ℃ no gushyushya umwanya muremure mubushyuhe bwa 350 ~ 650 ℃, umuyoboro wuzuye utanga umusaruro. Niba icyuma 20 # cyuzuye cyuma gishyushye kugeza kuri 650 ℃ hanyuma kigakonja vuba, ubukana burashobora kugarurwa. Kubwibyo, nanone yitwa% 26ldquo; Guhindura uburakari bukabije% 26rdquo; Ubushyuhe bwubushyuhe bwo hejuru burerekana ubwiyongere bwubukonje bwubushyuhe bwo guhindura ubushyuhe bwumucyo wuzuye. Ubushyuhe bwo hejuru ubushyuhe bukabije. Ubusanzwe ibyiyumvo bigenwa nubudasa buri hagati yubushyuhe bwinzibacyuho ihindagurika muri leta ikaze na leta yoroheje (% 26delta; T) Kwerekana. Kurenza urugero ubukana bwubushyuhe bwo hejuru, niko igipimo cyinshi cyo kuvunika hagati yimvune kumeneka yumucyo wuzuye.
Ingaruka yibintu ku bushyuhe bwo hejuru ubushyuhe bukabije mu muyoboro wuzuye ugabanijwemo ibice: munsi yubushyuhe bwubushyuhe bwo hejuru muburyo butandukanye na dogere. Chromium, manganese, nikel na silicon bigira uruhare runini, mugihe molybdenum, tungsten na titanium bigira uruhare rwo gutinda. Carbone nayo igira uruhare runini. Rusange ya karubone itomoye neza ntishobora kugabanuka kubushyuhe bwo hejuru. Ibyuma bibiri cyangwa byinshi bigizwe nibyuma birimo chromium, manganese, nikel na silikoni birumvikana cyane, kandi ibyiyumvo byayo biratandukana ukurikije ubwoko nibirimo bigize amavuta.
Ibyiyumvo byimiterere yumwimerere yubushyuhe bwuzuye bwuzuye umuyoboro mwinshi wubushyuhe bwo hejuru ubushyuhe bwicyuma buratandukanye cyane. Imiterere yubushyuhe bwo hejuru ya Martensite yunvikana cyane kubushyuhe bwo hejuru bwubushyuhe bukabije, bainite yubushyuhe bwo hejuru ni ubwa kabiri, naho pearlite ni ntoya.
Intangiriro yubushyuhe bwo hejuru ubushyuhe bukabije bwumucyo wuzuye usanzwe ufatwa nkigisubizo cyo gutandukanya ibintu byanduye nka fosifore, amabati, antimoni na arsenic kumupaka wambere wa austenite, bikavamo imbibi zimbuto. Ibintu bivangavanze nka manganese, nikel na chromium bitandukanijwe nibintu byanduye byavuzwe haruguru kumupaka wingano, biteza imbere gukungahaza ibintu byanduye kandi bikongerera imbaraga. Ibinyuranye na byo, molybdenum ifite imikoranire ikomeye na fosifore hamwe n’ibindi bintu byanduye, bishobora gutanga icyiciro cy’imvura muri kristu kandi bikabuza gutandukanya ingano y’ingano ya fosifore, ishobora kugabanya ubukana bw’ubushyuhe bwo hejuru. Ibintu bidasanzwe byisi nabyo bigira ingaruka zisa na molybdenum. Titanium irashobora guteza imbere cyane imvura ya fosifore nibindi bintu byanduye muri kristu, kugirango bigabanye imipaka y’intete gutandukanya ibintu byanduye kandi bidindiza ubushyuhe bwo hejuru bwubushyuhe bukabije.
Ingamba zo kugabanya ubushyuhe bwo hejuru ubushyuhe bukabije bwigituba cyiza ni ibi bikurikira: (1) nyuma yubushyuhe bwo hejuru, gukonjesha amavuta cyangwa gukonjesha amazi byihuse bikoreshwa mukubuza gutandukanya ibintu byanduye kumupaka wingano (2) Iyo molybdenum ibirimo mubyuma byiyongera kugera kuri 0.7%, uburyo bwo kwinjiza ubushyuhe bwo hejuru buragabanuka cyane. Kurenga iyi mipaka, 20 # ibyuma bisobanutse neza bigize karbide idasanzwe ikungahaye kuri molybdenum, molybdenum iri muri matrix iragabanuka, kandi uburyo bwo kwinjiza imiyoboro yuzuye yuzuye bwiyongera (3) Kugabanya 20 # ibikubiye mubintu byanduye mubyuma byuzuye neza (4) ) Biragoye gukumira kwinjiza ibice bikora ahantu h'ubushyuhe bwo hejuru ubushyuhe bwigihe kinini wongeyeho molybdenum yonyine. Gusa mugabanye ibintu 20 # byanduye mubyuma byicyuma neza, kunoza ubuziranenge bwumuyoboro wuzuye, wunganirwa no guhuza amavuta ya aluminium nibintu bidasanzwe byubutaka, birashobora gukumirwa neza.
