ʻO ka paʻa paʻa he huila i haku mua ʻia me hoʻokahi a i ʻole kekahi mau carbide refractory (e like me ka tungsten carbide, titanium carbide, a me nā mea ʻē aʻe) ma ke ʻano pauka, me nā pauka metala (e like me ka cobalt, nickel) e lawelawe ana ma ke ʻano he mea hoʻopili.Hana ʻia ia ma o ke kaʻina hana metallurgy pauda.Hoʻohana nui ʻia ka alloy paʻa no ka hana ʻana i nā mea hana ʻoki kiʻekiʻe a me nā mea hana ʻoki no nā mea paʻakikī a paʻakikī.Hoʻohana ʻia ia i ka hana ʻana i nā make hana anu, nā ana kikoʻī, a me nā ʻāpana kūʻokoʻa kūʻokoʻa i kū i ka hopena a me ka haʻalulu.
▌ Nā ʻano o ka Alloy Paʻa
(1)ʻO ka paʻakikī kiʻekiʻe, ke kūpaʻa aʻaʻahu, a me ka ʻulaʻula.
Hōʻike ka paʻa paʻa i ka paʻakikī o 86-93 HRA ma ka lumi wela, e like me 69-81 HRC.Mālama ia i ka paʻakikī kiʻekiʻe ma nā mahana o 900-1000 ° C a loaʻa iā ia ke kūpaʻa maikaʻi loa.Ke hoʻohālikelike ʻia me ke kila mea hana kiʻekiʻe, hiki i ka alloy paʻakikī ke ʻoki i nā wikiwiki he 4-7 mau manawa kiʻekiʻe a he 5-80 mau manawa ke ola.Hiki iā ia ke ʻoki i nā mea paʻakikī me ka paʻakikī a hiki i 50HRC.
(2)Ka ikaika kiʻekiʻe a me ka modulus elastic kiʻekiʻe.
Loaʻa i ka paʻa paʻa ka ikaika compressive kiʻekiʻe a hiki i 6000 MPa a me kahi modulus elastic mai (4-7) × 10 ^ 5 MPa, ʻoi aku ka kiʻekiʻe ma mua o ke kila kiʻekiʻe.Eia naʻe, ʻoi aku ka haʻahaʻa o kona ikaika flexural, maʻamau mai 1000-3000 MPa.
(3)ʻOi aku ka maikaʻi o ka corrosion a me ka oxidation.
Hōʻike ka paʻa paʻa i ke kūpaʻa maikaʻi ʻana i ka ʻino o ka lewa, nā waikawa, nā alkali, a ʻoi aku ka liʻiliʻi o ka oxidation.
(4)Ka helu haʻahaʻa o ka hoʻonui laina.
Mālama ka paʻa paʻa i ke ʻano paʻa a me nā ana i ka wā e hana ai ma muli o kona haʻahaʻa haʻahaʻa o ka hoʻonui laina.
(5)ʻAʻole pono nā huahana i hoʻohālikelike ʻia i ka mīkini hou a i ʻole ka wili hou ʻana.
Ma muli o kona paʻakikī kiʻekiʻe a me ka palupalu, ʻaʻole e ʻoki hou ʻia ka huila paʻa ma hope o ka hana ʻana a me ka sintering.Inā makemake ʻia ka hana hou aku, e hoʻohana ʻia nā ʻano e like me ka mīkini hoʻokuʻu uila, ka ʻoki uwea, ka wili electrolytic, a i ʻole ka wili kūikawā me nā huila wili.ʻO ka maʻamau, hoʻopaʻa ʻia nā huahana paʻa paʻa o nā ana kikoʻī, hoʻopaʻa ʻia, a hoʻopaʻa ʻia paha i nā kino mea hana a i ʻole nā kumu mold no ka hoʻohana ʻana.
▌ Nā ʻano maʻamau o ka hui paʻa
Hoʻokaʻawale ʻia nā ʻano huila paʻakikī maʻamau i ʻekolu mau ʻāpana e pili ana i ka haku mele a me nā ʻano hana: tungsten-cobalt, tungsten-titanium-cobalt, a me tungsten-titanium-tantalum (niobium) alloys.ʻO ka mea i hoʻohana nui ʻia i ka hana ʻana ʻo tungsten-cobalt a me tungsten-titanium-cobalt hard alloys.
(1)Tungsten-Cobalt Alloy Paʻa:
ʻO nā mea nui he tungsten carbide (WC) a me ka cobalt.Hōʻike ʻia ka papa e ke code "YG", a ukali ʻia e ka pākēneka o ka ʻike cobalt.No ka laʻana, hōʻike ʻo YG6 i kahi hui paʻa tungsten-cobalt me 6% maʻiʻo cobalt a me 94% tungsten carbide maʻiʻo.
(2)Tungsten-Titanium-Cobalt paʻa paʻa:
ʻO nā mea nui he tungsten carbide (WC), titanium carbide (TiC), a me ka cobalt.Hōʻike ʻia ka papa e ke code "YT", a ukali ʻia e ka pākēneka o ka ʻike o ka titanium carbide.No ka laʻana, hōʻike ʻo YT15 i kahi hui paʻakikī tungsten-titanium-cobalt me 15% titanium carbide content.
(3)Tungsten-Titanium-Tantalum (Niobium) Alloy Paʻa:
Ua ʻike ʻia kēia ʻano o ka paʻa paʻa ma ke ʻano he paʻa paʻa honua a i ʻole nā mea paʻa paʻa.ʻO nā mea nui he tungsten carbide (WC), titanium carbide (TiC), tantalum carbide (TaC), a i ʻole niobium carbide (NbC), a me ka cobalt.Hōʻike ʻia ka papa e ke code "YW" (nā hua mua o "Ying" a me "Wan," ʻo ia hoʻi ka paʻakikī a me ke ao holoʻokoʻa ma ka ʻōlelo Kina), a ukali ʻia e kahi helu.
▌ Nā mea hoʻohana o ka paʻa paʻa
(1)Mea Paahana ʻoki ʻoki:
Hoʻohana nui ʻia ka paʻa paʻa i ka hana ʻana i nā mea hana ʻoki, me nā mea hana hoʻohuli, nā mea ʻoki wili, nā ʻāpana planer, nā drills, etc. , keleawe hoolei, a me ka laau i huiia.ʻO nā mea paʻa paʻa Tungsten-titanium-cobalt kūpono no ka mīkini pahu lōʻihi o ke kila a me nā metala ferrous ʻē aʻe.Ma waena o nā mea hoʻoheheʻe, kūpono nā mea i loaʻa i ka cobalt kiʻekiʻe no ka mīkini paʻakikī, aʻo ka poʻe me ka cobalt haʻahaʻa e kūpono no ka hoʻopau ʻana.ʻOi aku ka lōʻihi o ke ola o nā mea hana paʻa honua i ka hana ʻana i nā mea paʻakikī e ʻoki ʻia e like me ke kila kila.
(2)Mea Mold:
Hoʻohana maʻamau ʻia ka paʻa paʻa ma ke ʻano he mea no ka make kiʻi anu, make ke kuʻi anu, make ka extrusion anu, a make ke poʻo anu.
Hoʻokomo ʻia nā mea poʻomanaʻo anuanu paʻa paʻa ma lalo o ka hopena a i ʻole ka hopena ikaika.ʻO nā waiwai koʻikoʻi e pono ai ka paʻakikī hopena maikaʻi, ka paʻakikī haʻihaʻi, ka ikaika luhi, ka ikaika kulou, a me ke kūpaʻa maikaʻi loa.ʻO ka mea maʻamau, koho ʻia nā ʻāpana kobalt waena a kiʻekiʻe.Loaʻa nā māka maʻamau YG15C.
ʻO ka mea maʻamau, aia kahi kālepa ma waena o ke kūpaʻa ʻaʻahu a me ka paʻakikī i nā mea hao paʻa.ʻO ka hoʻomaikaʻi ʻana i ke kūpaʻa ʻaʻahu e hopena i ka hoʻohaʻahaʻa ʻana i ka paʻakikī, ʻoiai ka hoʻonui ʻana i ka paʻakikī e alakaʻi i ka emi ʻana.
Inā maʻalahi ka mīkini i koho ʻia e hana i ka pohō a me ka pōʻino i ka hoʻohana ʻana, kūpono ke koho ʻana i kahi brand me ka ʻoi aku ka paʻakikī;Inā maʻalahi ka mea i koho ʻia e hana i ka lole mua a me ka pōʻino i ka hoʻohana ʻana, kūpono ke koho ʻana i kahi brand me ka paʻakikī kiʻekiʻe a me ke kūpaʻa ʻoi aku ka maikaʻi.ʻO nā māka ma lalo nei: YG15C, YG18C, YG20C, YL60, YG22C, YG25C mai ka hema a i ka ʻākau, hoʻemi ʻia ka paʻakikī, hoʻemi ʻia ka pale ʻana, hoʻomaikaʻi ʻia ka paʻakikī;ʻOiaʻiʻo, ʻo ka mea ʻē aʻe.
(3) Ana i na mea paahana a me na apana pale lole
Hoʻohana ʻia ʻo Tungsten carbide no nā inlays ili abrasive a me nā ʻāpana o ke ana ʻana i nā mea hana, nā bearings precision o nā mīkini wili, nā alakaʻi a me nā kaola alakaʻi o nā mīkini wili waena, a me nā ʻāpana kūʻokoʻa e like me nā kikowaena lathe.
Ka manawa hoʻouna: ʻAukake-02-2023
