Gushyira mu bikorwa no Gusesengura ASTM A1045 Umuyoboro wibyuma

ASTM A1045 Umuyoboro wibyumamuri rusange ikoreshwa mubikoresho byumuyoboro wicyuma.Umuyoboro w'icyuma udafite uburinganire ugabanijwemo GB8162 na GB8163, ibyo bikaba ari bibiri bisanzwe bikoreshwa mu Bushinwa.Ariko, ASTM A1045Umuyoboro wibyumaifite GB8162 gusa, nikintu gikunze gukoreshwa mugutunganya.

Umuyoboro w'icyuma ASTM A1045 ni umuyoboro ukoreshwa wa karubone uciriritse kandi ufite umuyoboro wicyuma ufite ibikoresho byiza byubukanishi, gukomera gukomeye kandi byoroshye gucika mugihe cyo kuzimya amazi.Ibice bito bigomba kuzimwa no gutwarwa, kandi ibice binini bigomba kuba bisanzwe, bikoreshwa cyane cyane mugukora ibice byimuka byimuka, nka turbine impeller na piston compressor.Shaft, ibikoresho, rack, inyo, nibindi.

ASTM1045 umuyoboro wa karuboneirimo karuboni zigera kuri 0.45%, urugero rwa manganese, silikoni, nibindi, hamwe na sulfure nkeya na fosifore biri mu byuma byiza byo mu rwego rwo hejuru byubaka ibyuma.

Ubushyuhe bwo kuvura ubushyuhe: busanzwe 850, kuzimya 840, gushyushya 600. Icyuma cya ASTM1045 nicyuma cyiza cya karubone cyiza cyane kandi gifite ubukana buke kandi byoroshye kugikata.Ibishushanyo bikunze gukoreshwa nkicyitegererezo, pin, inkingi ziyobora, nibindi, ariko bigomba kuvurwa ubushyuhe.1. ASTM1045 ibyuma byujuje ibisabwa niba ubukana bwayo burenze HRC55 (kugeza HRC62) nyuma yo kuzimya na mbere yo gushyuha.Ubukomezi bukabije mubikorwa bifatika ni HRC55 (kuzimya inshuro nyinshi kuzimya HRC58).2. Uburyo bwo gutunganya ubushyuhe bwa carburizing no kuzimya ntibushobora gukoreshwa mubyuma bya ASTM1045.Ibice byazimye kandi bituje bifite imiterere yubukanishi kandi bikoreshwa cyane mubice bitandukanye byingenzi byubatswe, cyane cyane ibyo guhuza inkoni, ibisumizi, ibyuma na shitingi bikora munsi yimizigo isimburana.Nyamara, ubukana bwubuso buri hasi kandi ntabwo bwihanganira kwambara.Ubuso bukomeye bwibice birashobora kunozwa no kuzimya no gutuza + kuzimya hejuru.Ubuvuzi bwa Carburizing busanzwe bukoreshwa mubice biremereye biremereye hamwe no kurwanya ingaruka zifatika, kandi kurwanya abrasion biruta ibyo kuzimya no gutuza + kuzimya hejuru.Ubuso bwa karubone burimo 0.8-1.2%, kandi intangiriro yacyo ni 0.1-0.25% (0.35% mubihe bidasanzwe).Nyuma yo kuvura ubushyuhe, ubuso burashobora kubona ubukana bwinshi (HRC58-62), kandi intangiriro ifite ubukana buke no kurwanya ingaruka.Niba ibyuma bya ASTM1045 bikoreshwa mugukoresha karburizasi, martensite ikomeye kandi yoroheje izagaragara mumyuma nyuma yo kuzimya, gutakaza ibyiza byo kuvura karburize.Kugeza ubu, karuboni yibikoresho bifata inzira ya carburizing ntabwo iri hejuru, kandi imbaraga zingenzi zishobora kugera hejuru cyane 0,30%, ibyo bikaba bidasanzwe mubisabwa.0.35% ntabwo bigeze babona ingero, kandi babitangije mubitabo gusa.Inzira yo kuzimya no gutuza + kuzimya inshuro nyinshi kuzimya hejuru birashobora gukoreshwa, kandi kwihanganira kwambara ni bibi cyane ugereranije na karburize.Sisitemu isabwa yo kuvura ubushyuhe bwibyuma 45 byerekanwe muri GB / T699-1999 ni 850 ℃ bisanzwe, 840 en kuzimya na 600 ℃ ubushyuhe.Ibintu byagezweho ni uko imbaraga zumusaruro ari ≥ 355MPa.Imbaraga zingana zibyuma 45 byerekanwe muri GB / T699-1999 ni 600MPa, imbaraga zumusaruro ni 355MPa, kurambura ni 16%, kugabanuka kwakarere ni 40%, ningufu zingaruka ni 39J.