Kapa ʻia ke kila 20CrMnTi he kila kila, a hoʻohana nā ʻāpana he 20CrMnTi.
20CrMnTipaipu kila ʻolehiki ke hoʻokaʻawale ʻia i ʻekolu ʻano: huki anu, ʻōwili wela apaipu kila liʻiliʻi liʻiliʻi ʻōwili anu, me nā koi likeʻole a me nā kaʻina hana likeʻole.Eia naʻe, hoʻohana kekahi mau ʻāpana i ke kila poepoe e hana i nā ʻāpana me ka noʻonoʻo ʻole i ke pani ʻana i nā paipu kila.ʻO ka hoʻololi ʻana i ka 20CrMnTi i huki ʻia i ke anu me ka 20CrMbTi pōʻai kila ʻaʻole wale e mālama i nā mea maka a me nā hola hana, akā e hōʻemi ana i nā kumukūʻai a hoʻonui i ka hoʻokūkū mākeke.ʻO 20CrMnTi a me 30CrMnSiA nā paipu hao ʻole i huki ʻia i ke anuanu he mau kila carburized me ka hana maikaʻi, kiʻekiʻe hardenability, paʻakikī a paʻa i ka ʻili a me ka paʻakikī ma hope o ka carburizing a me ke kinai ʻana, kiʻekiʻe haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, weldability, a me ka machinability maikaʻi ma hope o ka normalizing.20CrMnTipaipu kila liʻiliʻi huki anuʻO ka mea maʻamau ka haʻahaʻa kalapona kila me kahi kalapona maʻiʻo o 0.17% - 0.24%.Hoʻohana nui ʻia ia i nā kaʻa e hana i nā mīkini hoʻouna.ʻO ke kila kalapona carburized paʻakikī, ʻo CrMnTi kila, me ka paʻakikī kiʻekiʻe.Ma lalo o ke ʻano o ka hōʻoia ʻana i ka hardenability, he kiʻekiʻe ka ikaika a me ka paʻakikī, ʻoi aku ka ikaika haʻahaʻa haʻahaʻa haʻahaʻa.20CrMnTi ili carburized a paakiki kila.Machinability maikaʻi, deformation liʻiliʻi i ka hana kūikawā, a me ke kūpaʻa luhi maikaʻi.Ke kumu: no nā kaʻa, nā ʻāpana, nā ʻāpana Piston, a me nā mea ʻē aʻe no nā ʻāpana kūikawā o nā kaʻa a me nā mokulele.
20CrMnTi maʻamau: GB/T 3077-1988
Nā ʻano a me ka laulā o ka hoʻohana ʻana o20CrMnTi i huki ʻia i ke anu anuanu paipu kila ʻole:
Hoʻohana ʻia ia e hana i nā ʻāpana koʻikoʻi me kahi ʻāpana liʻiliʻi ma mua o 30mm e halihali ana i ka wikiwiki kiʻekiʻe, ke kaumaha a i ʻole ka ukana kaumaha, ka hopena a me ka friction, e like me nā gears, gear rings, gear shaft crossheads, etc.
ʻO ka hui kemika o 20CrMnTi i huki ʻia i ke anu anuanu o ka paipu kila ʻole (nā kiko):
Kalapona C: 0.17 ~ 0.23
Silicon Si: 0.17 ~ 0.37
Manganese Mn: 0.80 ～ 1.10
Sulfur S: ʻae ʻia ke koena maʻiʻo ≤ 0.035
Phosphorus P: maʻiʻo koena ʻae ʻia ≤ 0.035
Chromium Cr: 1.00 ～ 1.3020CrMnTi paipu kila maʻemaʻe ʻole.
Nikela Ni: ʻae ʻia ke koena maʻiʻo ≤ 0.030
Copper Cu: ʻae ʻia ke koena maʻiʻo ≤ 0.030
Titanium Ti: 0.04-0.10
Mechanical waiwai o 20CrMnTi anu-unuhi seamless kila paipu:
ikaika tensile σ b (MPa):≥1080(110)
ikaika hua σ s (MPa):≥835(85)
elongation δ 5 (％): ≥10
Hoemi o ka āpana ψ (％):≥45
Ka ikehu hopena Akv (J): ≥ 55
Waiwai paʻakikī α kv (J/cm2):≥69(7)
Paʻakikī: ≤ 217HB
Ka nui o ka laʻana: ʻo 15mm ka nui blank sample
Heat lapaʻau kiko'ī a me ka metallographic hana o 20CrMnTi anu-unuhi seamless kila paipu:
Heat lapaʻau kikoʻī: quenching: 880 ℃ no ka manawa mua, 870 ℃ no ka lua o ka manawa, aila hooluolu;ʻO ka mahana 200 ℃, ka hoʻoluʻu wai a me ka hoʻoluʻu ea.
20crmnti kila paipu mea he medium hardenability kila, he maikai hardenability ma muli o ka lehulehu alloying o Cr, Mn a me Ti.ʻO ke anawaena koʻikoʻi o ke kinai ʻaila ma kahi o 40mm;Ma hope o ka carburizing a me ke kinai ʻana, he kiʻekiʻe ke kūpaʻa a me ka paʻakikī, ʻoi aku ka haʻahaʻa haʻahaʻa haʻahaʻa hopena;ʻO ke kila ke kaʻina carburizing maikaʻi, ka ulu ʻana o ka palaoa liʻiliʻi, ke kinai pololei a me ka deformation liʻiliʻi.Hiki ke hoʻohana pono ʻia ke kila 20CrMnTi e hana i nā ʻāpana carburized koʻikoʻi me ka ʻāpana ma lalo o 30 ℃, a hiki ke kū i ka wikiwiki kiʻekiʻe, ka haʻahaʻa haʻahaʻa a i ʻole ke kaumaha kaumaha, ka hopena a me ka friction, e like me nā mea hoʻokele, nā ʻāpana, nā apo, nā apo keʻa, nā lima lima. , ilo, etc.
ʻO ka hui kemika o ka paipu kila 20crmnti he kalapona C, silicon Si, manganese Mn, sulfur S, phosphorus P a me chromium Cr.20crmnti kila paipu hana kaʻina hana: kalapona kila, pau olokaa, non-oxidation malamalama wela lapaʻau (NBK mokuʻāina), nondestructive ho'āʻo, kila paipu i loko o ka paia i brushed me kūikawā lako a holoiʻia ma lalo o kiʻekiʻe puʻe, anti-rust aila ma ke kila paipu. mālama ʻia no ka pale ʻana i ka ʻōpala, a mālama ʻia nā uhi ma nā kihi ʻelua no ka pale ʻana i ka lepo.ʻO nā hiʻohiʻona 20crmnti paipu kila: ʻo nā paia o loko a me waho o ka paipu kila he kiʻekiʻe kiʻekiʻe a me ka hoʻopau kiʻekiʻe, ʻaʻohe ʻāpana o ka paipu kila ma hope o ka mālama ʻana i ka wela, ʻoi aku ka maʻemaʻe kiʻekiʻe o ka paia o loko, ʻo ka paipu kila ke piʻi kiʻekiʻe, ʻaʻole kūlou ke anu. deform, a ʻaʻohe māwae ka hoʻonui a me ka palahalaha.
Hana ʻo Shandong Haihui Steel Co., Ltd nā paipu kila liʻiliʻi liʻiliʻio GB 10 #, GB20 #, GB35 #, GB45 #, 20Cr, 40Cr, 16Mn, 35CrMo, 20CrMoTi, Gcr15.
Ka manawa hoʻouna: Jan-16-2023