AISI 4140 kila 1.7225 42CrMo4 SCM440

ʻO AISI 4140 Alloy Steel he kila chromium-molybdenum maʻamau i hoʻohana mau ʻia ma hope o ke kinai ʻia a me ka hoʻonā ʻana, me ka ikaika kiʻekiʻe, ka paʻakikī kiʻekiʻe. Loaʻa i ka pā kila 4140 ka ikaika luhi kiʻekiʻe a me ka paʻakikī o ka hopena haʻahaʻa haʻahaʻa.

Loaʻa ka pōmaikaʻi nui o Gnee ma 4140 pā kila:

• ʻO 1500+ tons i kēlā me kēia lā o ka 4140 alloy plate a i ʻole ka pā pālahalaha.
• Loaʻa ke kūlana Q+T (PH prehardened).
• Loaʻa ka mānoanoa 4-300mm no 1-3 lā hoʻouna.
• ʻO ka mānoanoa 1-10mm pepa anu i ʻōwili ʻia no 30 mau lā alakaʻi.
• ʻOki i ka laula & ʻoki i ka lōʻihi lawelawe i loaʻa.
• Loaʻa ka lawelawe ʻana i ka mīkini i ka hoʻomanawanui a me nā ʻāpana ʻōpala.

Ke kūkākūkā nei ʻo AISI 4140, he mea nui e hoʻomaopopo i ke ʻano o ka helu helu:

Hana ʻia ʻo AISI 4140 ma ke kau ʻana i ka hao, carbon, a me nā mea hoʻohui ʻē aʻe i loko o ka umu uila a i ʻole ka umu oxygen. ʻO nā mea hoʻohui nui i hoʻohui ʻia i ka AISI 4140:

• Chromium
• Manganese
• Molybdenum

I ka wā i hui pū ʻia ai ka hao, carbon, a me nā mea hoʻohuihui ʻē aʻe i loko o ke ʻano wai, ʻae ʻia ia e maʻalili. Hiki ke hoʻopili ʻia ke kila; he mau manawa paha.

Ma hope o ka pau ʻana o ka hoʻopili ʻana, hoʻomehana ʻia ke kila i kahi pae hoʻoheheʻe ʻia i hiki ke ninini ʻia i loko o ke ʻano i makemake ʻia a hiki ke hoʻohana ʻia i ka wela a i ʻole ke anuanu ma o nā wili a i ʻole nā ​​​​mea hana ʻē aʻe e hiki ai i ka mānoanoa i makemake ʻia. ʻOiaʻiʻo, aia nā hana kūikawā ʻē aʻe e hiki ke hoʻohui ʻia i kēia e hōʻemi i ka unahi wili a hoʻomaikaʻi paha i nā waiwai mechanical.

ʻO AISI 4140 he kila kila haʻahaʻa. Ke hilinaʻi nei nā kila hao haʻahaʻa i nā mea ʻē aʻe ma mua o ka hao a me ke kalapona no ka hoʻomaikaʻi ʻana i ko lākou mau pono mechanical. Ma AISI 4140, hoʻohana ʻia nā mea hoʻohui o ka chromium, molybdenum, a me ka manganese e hoʻonui i ka ikaika a me ka paʻakikī o ke kila. ʻO nā hoʻohui o ka chromium a me ka molybdenum ke kumu i manaʻo ʻia ai ʻo AISI 4140 he kila "chromoly".

Aia kekahi mau waiwai mechanical nui o AISI 4140, me:

• ʻO ka ikaika tensile: ʻo AISI 4140 kila ka mea i manaʻo ʻia he 95,000 psi.
• ʻoʻoleʻa
• ʻO ka ductility
• Ka paakiki

Hōʻike ka papa ma lalo i ka haku mele ʻana o AISI 4140:

ʻO ka hoʻohui ʻana o ka chromium a me ka molybdenum e hoʻoikaika i ka pale ʻana i ka corrosion. Hiki ke hoʻohana pono ka molybdenum i ka wā e hoʻāʻo ai e pale i ka ʻino ma muli o nā chlorides. Hoʻohana ʻia ka manganese ma AISI 4140 e hoʻonui i ka hardenability a me ka deoxidizer. I nā kila kila, hiki i ka manganese ke hui pū me ka sulfur e hoʻomaikaʻi i ka machinability a hoʻomaikaʻi i ke kaʻina carburizing.