20# zafi birgima karfe sheet

(1) Halaye The karfe nasa ne high quality-carbon carbon karfe, sanyi extruded, carburized da taurare karfe. Karfe yana da ƙananan ƙarfi, mai kyau tauri, filastik da walƙiya. Ƙarfin ƙarfi shine 253-500MPa, kuma elongation shine ≥24%.
Kaddarorin 20 suna kama da na karfe 15, amma ƙarfin ya ɗan fi girma. Yana amfani da: dace da kera na kananan da matsakaici carburizing da carbonitriding sassa da ba su da muhimmanci ga gina motoci, tarakta da kuma janar inji masana'antu, kamar birki takalma, lever shafts, gearbox gudun cokula, watsa m gears da Camshafts a kan tarakta, rataya mai daidaita shafts, mai daidaita bushing ciki da waje, da sauransu; ana amfani da shi don kera sassa daban-daban na inji waɗanda ba a damu ba amma suna buƙatar ƙarfi mai ƙarfi a ƙarƙashin yanayi mai zafi ko na al'ada; a nauyi da matsakaici-sized inji masana'antu Matsakaici, kamar ƙirƙira ko guga man taye sanduna, shackles, levers, hannayen riga, clamps, da dai sauransu A cikin tururi turbine da tukunyar jirgi masana'antu masana'antu, shi ne mafi yawa amfani ga bututu, flanges, headers da daban-daban fasteners. Yin aiki a cikin kafofin watsa labaru marasa lalacewa tare da matsa lamba na ≤6N / square da zazzabi na ≤450 ℃; ana amfani da su don yin ƙetare akan titin jirgin ƙasa, locomotives da ababan hawa Simintin gyare-gyare kamar kai da pistons.
Normalizing na iya inganta spheroidization na karfe, tace babban proeutectoid ferrite, da kuma inganta aikin yankan ƙasa da 160HBS.
Hanyar hanyar da karfe mutu sassa ne: blanking → forging mutu blank → annealing → inji m machining → sanyi extrusion gyare-gyare → recrystallization annealing → inji karewa → carburizing → quenching, tempering → nika da polishing → taro.
(2) Yanayin isarwa da taurin Yanayin mara zafi, taurin ≤156HBS.

Haɗin sinadarai na daidaitaccen JB/ T 6057-92 karfe (ƙarashin juzu'i,%)

C	Si	Mn	P	S	Ni	Cr	Ku
0.17~0.23	0.17~0.37	0.35~0.65	≤0.035	≤0.035	≤0.30	≤0.25	≤0.25

Kayan aikin injiniya
(5) Yanayin canjin lokaci (kimanin ƙima) Ac1=735℃, Ac3=855℃, Ar3=835℃, Ar1=680℃
(6) Normalizing bayani dalla-dalla The zazzabi ne 920 ~ 950 ℃, da kuma tanderun ne iska sanyaya. Taurin shine 131 ~ 156HBS.
(7) Ƙayyadewa don tausasa jiyya na sanyi guguwar blanks The zazzabi ne 700 ~ 720 ℃, da rike lokaci ne 8 ~ 15h, da sanyaya kudi ne 50 ~ 100 ℃ / h, da kuma yawan zafin jiki saukad zuwa 550 ~ 600 ℃. tare da tanderun, kuma tanderun an sanyaya iska.
Taurin kafin magani shine ≤143HBS, kuma taurin bayan laushi shine ≤131HBS.
(8) Quenching ƙayyadaddun ƙayyadaddun zafin jiki 910 ℃ ± 10 ℃, sanyaya tare da 10% NaCl brine.
(9) Ƙarfin da aka auna fy = 245Mpa, modulus na roba E = 206Gpa, Rawanin Poisson ν=0.3.
(10) The karfi ƙarfi ne 275 ~ 392MPa, da tensile ƙarfi ne 253 ~ 500MPa, yawan amfanin ƙasa ƙarfi ne 275MPa, da elongation ne 25%.
(11) Annealing zafin jiki ne kawai 600-650 digiri, da kuma riƙe lokaci ne 1-2h.

Ayyukanmu na mashaya zagayenmu:

1. Idan kun sami wata matsala mai inganci bayan karɓar kayan, zaku iya tuntuɓar mu, za mu sarrafa mu ba ku amsa cikin sa'o'i 12

2.Mu masana'anta ne masu kera SS Round mashaya, mafi kyawun iya samarwa, mafi kyawun sarrafa inganci, Mafi kyawun Sabis.

3.Cibiyar Binciken SGS ko ISO ta bincika

4.100% QC duba Kafin jigilar kaya.

Idan kuna da wata tambaya don Allah a tuntuɓe mu cikin lokaci.