ASTM A1045 Pipa Uameae masani ona talafeagai i mea o le paipa uamea seamless.ua vaevaeina paipa uʻamea seamless i GB8162 ma GB8163, e lua tulaga masani faaaogaina i Saina.Ae ui i lea, ASTM A1045Paipa Uamea Fausiae naʻo GB8162, o se mea masani faʻaaogaina mo masini.
ASTM A1045 paipa u'amea ose masani fa'aoga kaponi tineia paipa u'amea ma lelei fa'ainisinia meatotino, maualalo fa'amaa'a ma faigofie ona ta'e i le vai tineia.O vaega laiti e tatau ona tineia ma faʻafefe, ma vaega tetele e tatau ona faʻavasegaina, e masani ona faʻaaogaina e gaosia ai le malosi maualuga o vaega faʻagaoioi, e pei o le turbine impeller ma le piston compressor.Fua, mea fa'aoga, fata, anufe, ma isi.
ASTM1045 paipa uamea carbono loʻo i ai e uiga i le 0.45% carbon, o se vaega itiiti o manganese, silicon, ma isi mea, ma le maualalo o le sulfur ma le phosphorus o loʻo i totonu o le paipa uʻamea sili ona lelei.
vevela togafitiga vevela: normalizing 850, tineia 840, tempering 600. ASTM1045 uamea o se uamea fausaga maualuga carbon ma maualalo maaa ma faigofie ona tipi.O le limu e masani ona faʻaaogaina e fai ma faʻataʻitaʻiga, pine, pou taʻiala, ma isi, ae tatau ona faʻafefeteina.1. ASTM1045 uamea e agavaa pe afai o lona maaa e sili atu i le HRC55 (e oo atu i le HRC62) pe a uma ona tineia ma aʻo leʻi faʻafefe.Ole maualuga ole ma'a'a ile fa'aogaina ole HRC55 (high-frequency quenching HRC58).2. O le vevela togafitiga faagasologa o carburizing ma tineia e le tatau ona faaaogaina mo ASTM1045 uamea.O vaega tineia ma faʻafefeteina e iai mea faʻainisinia lelei atoatoa ma e faʻaaogaina lautele i vaega taua faʻavae, aemaise lava i latou e fesoʻotaʻi ai, faʻamau, mea faʻaoga ma uʻamea o loʻo galue i lalo o le fesuiaiga o avega.Ae ui i lea, o le maaa o luga e maualalo ma e le mafai ona ofuina.E mafai ona faʻaleleia le maaa o luga o vaega e ala i le tineia ma le faʻafefeteina + faʻafefe.Carburizing togafitiga e masani ona faʻaaogaina mo vaega mamafa o uta ma faʻafefe abrasion teteʻe ma autu aʻafiaga teteʻe, ma lona teteʻe abrasion e maualuga atu nai lo le tineia ma tempering + luga tineia.O lona pito i luga o le carbon anotusi o le 0.8-1.2%, ma o lona autu e masani lava 0.1-0.25% (0.35% i mataupu faʻapitoa).A maeʻa togafitiga vevela, e mafai ona maua le maualuga o le maaa (HRC58-62), ma o le autu e maualalo le maaa ma le aʻafiaga.Afai o le ASTM1045 uamea e faʻaaogaina mo le faʻamaʻiina, o le martensite malo ma le maʻaleʻale o le a faʻaalia i totonu pe a uma ona tineia, ma leiloa le lelei o togafitiga faʻamaʻi.I le taimi nei, o le carbon content o mea e faʻaaogaina ai le faʻaogaina o le carburizing e le maualuga, ma o le malosi autu e mafai ona oʻo atu i le maualuga i le 0.30%, lea e seasea faʻaaogaina.0.35% e leʻi vaʻaia lava ni faʻataʻitaʻiga, ma na o le faʻalauiloaina i totonu o tusi aoga.E mafai ona faʻaaogaina le faʻagasologa o le tineia ma le faʻafefeteina + maualuga-telefoni luga, ma o le ofuina teteʻe e sili atu le leaga nai lo le carburizing.O le fa'atonuga o le fa'aogaina o le vevela mo le 45 uamea fa'amaonia i le GB/T699-1999 tulaga masani o le 850 ℃ masani, 840 ℃ tineia ma 600 ℃ tempering.O meatotino na ausia o le malosi e maua mai ai e ≥ 355MPa.O le malosi tensile o le 45 uamea faʻamaonia i le GB / T699-1999 tulaga masani o le 600MPa, o le malosi o le gaosiga o le 355MPa, o le faʻalauteleina o le 16%, o le faʻaitiitia o le eria o le 40%, ma le malosi o le malosi o le 39J.
Taimi meli: Sep-24-2022