20 # otentha adagulung'undisa zitsulo pepala

(1) Makhalidwe Chitsulo ndi chapamwamba kwambiri cha carbon carbon steel, ozizira extruded, carburized ndi chitsulo cholimba. Chitsulocho chili ndi mphamvu zochepa, kulimba bwino, pulasitiki komanso kutsekemera. Mphamvu yamakokedwe ndi 253-500MPa, ndipo elongation ndi ≥24%.
Zinthu za 20 ndizofanana ndi zitsulo 15, koma mphamvu zake ndizokwera pang'ono. Zomwe zimagwiritsidwa ntchito: zoyenera kupanga zing'onozing'ono ndi zapakati zopangira ma carburizing ndi carbonitriding zomwe sizofunikira pomanga magalimoto, mathirakitala ndi makina opanga makina ambiri, monga nsapato zamanja, ma lever shaft, mafoloko othamanga a gearbox, magiya odutsa ndi ma Camshafts pa mathirakitala, kuyimitsidwa mitsinje equalizer, equalizer mkati ndi kunja bushings, etc.; zogwiritsidwa ntchito popanga zida zamakina zosiyanasiyana zomwe sizikupanikizika koma zimafunikira kulimba kwambiri pansi pazigawo zotentha kapena zokhazikika; m'makina olemera ndi apakatikati opanga makina apakati, monga ndodo zomangira kapena zoponderezedwa, maunyolo, ma levers, manja, zomangira, ndi zina zambiri. kugwira ntchito m'ma TV osawononga ndi kupanikizika kwa ≤6N/ square ndi kutentha kwa ≤450 ℃; amagwiritsidwa ntchito kupanga mitanda pa njanji, ma locomotives ndi magalimoto Castings monga mitu ndi pistoni.
Normalizing imatha kulimbikitsa spheroidization ya chitsulo, kuyeretsa kwambiri proeutectoid ferrite, ndikuwongolera magwiridwe antchito osafunikira osakwana 160HBS.
Njira yopangira zitsulo zazitsulo ndi: kutsekedwa → kufota kosa kanthu → kutsekereza → makina ovuta → kuumba kozizira → kusungunula kowonjezera → kutsiriza makina → kubisa → kuzimitsa, kutentha → kugaya ndi kupukuta → msonkhano.
(2) Kutumiza ndi kuuma Mkhalidwe wosatenthedwa, kuuma ≤156HBS.

The Chemical zikuchokera muyezo JB/T 6057-92 chitsulo (chigawo misa,%)

Zimango katundu
(5) Kutentha kwa gawo (mtengo wapafupi) Ac1=735℃, Ac3=855℃, Ar3=835℃, Ar1=680℃
(6) Normalizing specifications Kutentha ndi 920 ~ 950 ℃, ndipo ng'anjo ndi mpweya utakhazikika. Kuuma kwake ndi 131 ~ 156HBS.
(7) Mfundo zochepetsera zochizira zoziziritsa kuzizira Kutentha ndi 700 ~ 720 ℃, nthawi yogwira ndi 8 ~ 15h, ndipo kuzizira ndi 50 ~ 100 ℃ / h, ndipo kutentha kumatsikira ku 550 ~ 600 ℃ ndi ng'anjo, ndipo ng'anjoyo ndi mpweya wozizira.
Kuuma kusanachitike chithandizo ndi ≤143HBS, ndipo kuuma pambuyo pofewa ndi ≤131HBS.
(8) Kuzimitsa mfundo Kutentha 910 ℃ ± 10 ℃, kuzirala ndi 10% NaCl brine.
(9) Kuyezedwa mphamvu zokolola fy=245Mpa, zotanuka modulus E=206Gpa, chiŵerengero cha Poisson ν=0.3.
(10) Kumeta ubweya wa mphamvu ndi 275 ~ 392MPa, mphamvu yothamanga ndi 253 ~ 500MPa, mphamvu yokolola ndi 275MPa, ndi elongation ndi 25%.
(11) Kutentha kwa annealing ndi madigiri 600-650 okha, ndipo nthawi yogwira ndi 1-2h.

Ntchito zathu zabwalo lathu lozungulira :

1. Mukapeza vuto lililonse mutalandira katunduyo, mutha kulumikizana nafe, tidzakuwongolerani ndikukuyankhani pakatha maola 12 .

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3.Kuwunikiridwa ndi Inspection Institution ya SGS kapena ISO

4.100% QC kuwunika Musanatumize.

Ngati muli ndi funso, chonde titumizireni munthawi yake.