He mea hao i hana ʻia me ka paʻa paʻa o ka metala refractory a me ka mea hoʻopaʻa metala ma o ke kaʻina metala pauka. Loaʻa i ka carbide cemented kahi ʻano o nā waiwai maikaʻi e like me ka paʻakikī kiʻekiʻe, ke kūpaʻa ʻana, ka ikaika maikaʻi a me ka paʻakikī, ka pale ʻana i ka wela a me ka pale ʻana i ka corrosion, ʻoi aku ka paʻakikī kiʻekiʻe a me ke kūpaʻa ʻana, e mau ana ka loli ʻole a hiki i kahi mahana o 500 °C, aia nō. paʻakikī kiʻekiʻe ma 1000 ℃. Hoʻohana nui ʻia ʻo Carbide e like me nā mea hana, e like me ka hoʻohuli ʻana i nā mea hana, nā mea ʻoki milling, planers, drills, boring tools, etc., no ka ʻoki ʻana i ka hao, non-ferrous metals, plastics, chemical fibers, graphite, aniani, pōhaku a me ke kila maʻamau, a hiki ke hoʻohana ʻia no ka ʻoki ʻana i nā mea hana paʻakikī e like me ke kila wela, ke kila kila, ke kila manganese kiʻekiʻe, ke kila mea hana, a me nā mea ʻē aʻe.
Ka hoʻohana ʻana i ka carbide sima
(1) Mea paahana
ʻO Carbide ka nui loa o nā mea paahana, hiki ke hoʻohana ʻia no ka hana ʻana i nā mea hana hoʻohuli, nā mea ʻoki milling, planers, drills, etc. I waena o lākou, kūpono ka tungsten-cobalt carbide no ka hana pōkole pōkole o nā metala ferrous a me nā metala ʻole. nā mea non-metallic, e like me ka hao hao, keleawe keleawe, bakelite, etc.; He kūpono ka tungsten-titanium-cobalt carbide no ka hana lōʻihi o nā metala ferrous e like me ke kila. Mīkini chip. Ma waena o nā mea hoʻohui like, ʻo nā mea me ka ʻiʻo kobalt ʻoi aku ka kūpono no ka mīkini paʻakikī, a ʻo nā mea me ka liʻiliʻi o ka cobalt e kūpono no ka hoʻopau ʻana. ʻOi aku ka lōʻihi o ka hana ʻana o nā carbide cimented kumu nui ma mua o nā carbide cemented ʻē aʻe no nā mea paʻakikī e like me ke kila kila.
(2) Mold mea
Hoʻohana nui ʻia ka carbide cemented no nā make hana anu e like me ka make kiʻi anu, make anu punching, make anu extrusion, a make ka pier anu.
Pono ke poʻomanaʻo anuanu Carbide e loaʻa i ka paʻakikī o ka hopena maikaʻi, ka paʻakikī haʻihaʻi, ka ikaika luhi, ka ikaika kulou a me ke kūpaʻa ʻaʻahu maikaʻi ma lalo o nā kūlana hana kūʻokoʻa o ka hopena a i ʻole ka hopena ikaika. Hoʻohana maʻamau ʻia nā ʻano kobalt a me ke kiʻekiʻe a me ka waena a me ka coarse grain alloy, e like me YG15C.
Ma ka ʻōlelo maʻamau, ʻaʻole kūʻē ka pilina ma waena o ka ʻaʻahu a me ka paʻakikī o ka carbide cemented: ʻo ka hoʻonui ʻana o ka pale ʻana e alakaʻi i ka emi ʻana o ka paʻakikī, a ʻo ka piʻi ʻana o ka paʻakikī e alakaʻi i ka emi ʻana o ke kūpaʻa lole. No laila, i ke koho ʻana i nā māka alloy, pono e hoʻokō i nā koi hoʻohana kikoʻī e like me ka mea hana a me nā kūlana hana.
Inā ʻoi aku ka maikaʻi o ka haʻihaʻi ʻana o ka papa i koho ʻia i ka wā e hoʻohana ai, pono e koho ʻia ka papa me ka ʻoi aku ka paʻakikī; inā pili ka papa i koho ʻia i ka ʻaʻahu a me ka pōʻino i ka wā e hoʻohana ai, pono e koho ʻia ka papa 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, e emi ana ka paʻakikī, e emi ana ke kūpaʻa aahu, a piʻi ka paʻakikī; aka, he oiaio no.
(3) Ana i na mea paahana a me na apana pale lole
Hoʻohana ʻia ʻo Carbide no nā inlays ʻili a me nā ʻāpana o ke ana ʻana, nā bearings precision o nā mea wili, nā papa alakaʻi a me nā koʻokoʻo alakaʻi o nā mea wili ʻole i waena, nā poʻo o ka lathe a me nā ʻāpana pale lole ʻē aʻe.
ʻO nā metala paʻa he mau metala hui hao, maʻamau ka cobalt a me ka nickel.
I ka hana ʻana i ka carbide cemented, ʻo ka nui o ka nui o ka pauka maka i koho ʻia ma waena o 1 a me 2 microns, a kiʻekiʻe loa ka maʻemaʻe. Hoʻopili ʻia nā mea maka e like me ka ratio haku ʻia i kuhikuhi ʻia, a hoʻohui ʻia ka waiʻona a i ʻole nā mea media ʻē aʻe i ka wili pulu i loko o ka wili pōleʻa pulu e hui pū ʻia a pulverized. kānana i ka hui ʻana. A laila, granulated ka hui ʻana, kaomi ʻia, a hoʻomehana ʻia i kahi mahana kokoke i ka helu heheʻe o ka metala binder (1300-1500 °C), ʻo ka pae paʻakikī a me ka metala binder e hana i kahi eutectic alloy. Ma hope o ka hoʻoluʻu ʻana, puʻunaue ʻia nā ʻāpana paʻakikī i loko o ka pā i haku ʻia me ka metala hoʻopaʻa a pili pono kekahi i kekahi e hana i kahi holoʻokoʻa paʻa. ʻO ka paʻakikī o ka carbide cemented e pili ana i ka maʻiʻo o ka pae paʻakikī a me ka nui o ka palaoa, ʻo ia hoʻi, ʻoi aku ka kiʻekiʻe o ka pae paʻakikī a ʻoi aku ka maikaʻi o ka ʻai, ʻoi aku ka paʻakikī. Hoʻoholo ʻia ka paʻakikī o ka carbide cemented e ka metala binder. ʻOi aku ka kiʻekiʻe o ka mea hoʻopaʻa metala, ʻoi aku ka kiʻekiʻe o ka ikaika flexural.
I ka makahiki 1923, ua hoʻohui ʻo Schlerter o Kelemānia i ka 10% a i ka 20% cobalt i ka pauka tungsten carbide ma ke ʻano he mea hoʻopaʻa, a ua hana i kahi huila hou o ka tungsten carbide a me ka cobalt. ʻO ka paʻakikī ka lua ma mua o ke daimana. ʻO ka carbide sima mua i hana ʻia. I ka wā e ʻoki ai i ke kila me kahi mea hana i hana ʻia me kēia huila, e pau koke ka ʻokiʻoki, a hiki i ka ʻoki ʻoki e haki. I ka makahiki 1929, ua hoʻohui ʻo Schwarzkov i ʻAmelika Hui Pū ʻIa i kekahi nui o ka tungsten carbide a me ka titanium carbide compound carbide i ka haku mele mua, kahi i hoʻomaikaʻi ai i ka hana o ka mea hana i ka ʻoki kila. ʻO kēia kekahi mea i loaʻa i ka mōʻaukala o ka hoʻomohala ʻana i ka carbide cemented.
Loaʻa i ka carbide cemented kahi ʻano o nā waiwai maikaʻi e like me ka paʻakikī kiʻekiʻe, ke kūpaʻa ʻana, ka ikaika maikaʻi a me ka paʻakikī, ka pale ʻana i ka wela a me ka pale ʻana i ka corrosion, ʻoi aku ka paʻakikī kiʻekiʻe a me ke kūpaʻa ʻana, e mau ana ka loli ʻole a hiki i kahi mahana o 500 °C, aia nō. paʻakikī kiʻekiʻe ma 1000 ℃. Hoʻohana nui ʻia ʻo Carbide e like me nā mea hana, e like me ka hoʻohuli ʻana i nā mea hana, nā mea ʻoki milling, planers, drills, boring tools, etc., no ka ʻoki ʻana i ka hao, non-ferrous metals, plastics, chemical fibers, graphite, aniani, pōhaku a me ke kila maʻamau, a hiki ke hoʻohana ʻia no ka ʻoki ʻana i nā mea hana paʻakikī e like me ke kila wela, ke kila kila, ke kila manganese kiʻekiʻe, ke kila mea hana, a me nā mea ʻē aʻe.
Hiki ke hoʻohana ʻia ka Carbide no ka hana ʻana i nā mea hana wili pōhaku, nā mea hana mining, nā mea wili, nā mea ana, nā ʻāpana kūʻokoʻa, nā abrasive metala, nā laina cylinder, nā bearings precision, nā nozzles, nā mole metala (e like me ke kaha kiʻi uea, make bolt, make nut. , a me nā ʻano hoʻopaʻa paʻa like ʻole, ʻo ka hana maikaʻi loa o ka carbide cemented i hoʻololi mālie i nā mole kila mua).
Ma hope mai, puka mai nō hoʻi ka carbide i uhi ʻia. I ka makahiki 1969, ua hoʻomohala maikaʻi ʻo Suena i kahi mea hana i uhi ʻia i ka titanium carbide. ʻO ke kumu o ka mea hana he tungsten-titanium-cobalt carbide a i ʻole tungsten-cobalt carbide. ʻO ka mānoanoa o ka titanium carbide coating ma luna o ka ʻili he mau microns wale nō, akā ke hoʻohālikelike ʻia me ka hōʻailona like o nā mea hana alloy, Hoʻonui ʻia ke ola lawelawe e 3 mau manawa, a hoʻonui ʻia ka wikiwiki o ka ʻoki ʻana e 25% a 50%. I ka makahiki 1970, ua puka mai ka hā o nā mea hana i uhi ʻia no ka ʻoki ʻana i nā mea paʻakikī i ka mīkini.
Pehea ka sintered carbide?
ʻO ka carbide Cemented he mea metala i hana ʻia e ka pauka metala o nā carbide a me nā metala paʻa o hoʻokahi a ʻoi aku paha nā metala refractory.
Mnā ʻāina hana nui
Aia ma mua o 50 mau ʻāina ma ka honua e hana ana i ka carbide cemented, me ka huina o 27,000-28,000t-. ʻO nā mea hana nui ʻo ʻAmelika Hui Pū ʻIa, Lūkia, Suedena, Kina, Kelemānia, Iapana, United Kingdom, Farani, a me nā mea ʻē aʻe. , ikaika loa ka hoʻokūkū makeke. Ua hoʻomaka ka ʻoihana carbide cemented ma Kina i ka hopena o nā makahiki 1950. Mai ka makahiki 1960 a hiki i ka makahiki 1970, ua ulu wikiwiki ka ʻoihana carbide cemented o Kina. I ka makahiki mua o 1990, hiki i ka 6000t ka nui o ka hana o ka carbide cemented a Kina, a hiki i ka 5000t ka huina o ka carbide cemented, ʻelua wale nō ma Rusia a me ʻAmelika Hui Pū ʻIa, ʻo ia ke kolu o ka honua.
ʻoki wc
①Tungsten a me ka cobalt cemented carbide
ʻO nā mea nui ka tungsten carbide (WC) a me ka binder cobalt (Co).
Aia kona papa me "YG" ("paʻakikī a me ka cobalt" ma ka Pinyin Kina) a me ka pākēneka o ka maʻiʻo cobalt maʻamau.
No ka laʻana, ʻo YG8 ʻo ia ka awelika WCo=8%, a ʻo ke koena he tungsten-cobalt carbide o tungsten carbide.
Nā pahi TIC
②Tungsten-titanium-cobalt carbide
ʻO nā mea nui he tungsten carbide, titanium carbide (TiC) a me ka cobalt.
Hoʻokumu ʻia kāna papa me "YT" ("paʻakikī, titanium" ʻelua mau huaʻōlelo ma ka prefix Pinyin Kina) a me ka ʻike maʻamau o ka titanium carbide.
No ka laʻana, YT15 'o ia hoʻi ka awelika WTi=15%, a ʻo ke koena he tungsten carbide a me ka tungsten-titanium-cobalt carbide me ka ʻike cobalt.
Mea hana ʻo Tungsten Titanium Tantalum
③Tungsten-titanium-tantalum (niobium) cemented carbide
ʻO nā mea nui he tungsten carbide, titanium carbide, tantalum carbide (a i ʻole niobium carbide) a me ka cobalt. Ua kapa ʻia kēia ʻano carbide cemented carbide maʻamau a i ʻole carbide cemented universal.
Hoʻokumu ʻia kāna papa me "YW" (ka huahelu phonetic prefix Kina o "paʻakikī" a me "wan") me kahi helu kaʻina, e like me YW1.
Nā hiʻohiʻona hana
Hoʻokomo ʻia ʻo Carbide Welded
Paʻa kiʻekiʻe (86～93HRA, like me 69～81HRC);
ʻO ka paʻakikī wela maikaʻi (a hiki i 900 ~ 1000 ℃, mālama 60HRC);
Kūleʻa abrasion maikaʻi.
ʻO nā mea hana ʻoki Carbide he 4 a 7 mau manawa ʻoi aku ka wikiwiki ma mua o ke kila kiʻekiʻe, a ʻo ke ola mea hana he 5 a 80 mau manawa kiʻekiʻe. ʻO ka hana ʻana i nā mea hoʻoheheʻe a me ke ana ʻana, ʻo ke ola lawelawe ʻo 20 a 150 mau manawa kiʻekiʻe ma mua o ke kila kila. Hiki iā ia ke ʻoki i nā mea paʻakikī ma kahi o 50HRC.
Eia nō naʻe, palupalu ka carbide i hoʻopaʻa ʻia a ʻaʻole hiki ke mīkini ʻia, a paʻakikī ke hana ʻana i nā mea hana hoʻohui me nā ʻano paʻakikī. No laila, hana pinepine ʻia nā ʻāpana o nā ʻano like ʻole, i hoʻokomo ʻia ma luna o ke kino mea hana a i ʻole kino mold e ka welding, hoʻopaʻa ʻana, mechanical clamping, etc.
Paʻa ʻano kūikawā
Hoʻopaʻa ʻana
Cemented carbide sintering molding mea e kaomi i ka pauda i loko o ka billet, a laila e komo i ka sintering kapuahi e wela i kekahi mahana (sintering wela), e malama ia no kekahi manawa (paʻa manawa), a laila, hooluolu iho ia e loaa i ka cemented. mea carbide me nā waiwai i makemake ʻia.
Hiki ke hoʻokaʻawale ʻia ke kaʻina hana sintering carbide i ʻehā mau pae kumu:
1: Ma ke kahua o ka wehe ʻana i ka mea hana a me ka pre-sintering, hoʻololi ke kino sintered penei:
ʻO ka wehe ʻana o ka mea hoʻoheheʻe, me ka piʻi ʻana o ka mahana i ka pae mua o ka sintering, e hoʻoheheʻe ʻia ka mea hoʻoheheʻe a hoʻoheheʻe ʻia, a kāpae ʻia ke kino sintered. ʻOkoʻa ke ʻano, ka nui a me ke kaʻina hana sintering.
Hoʻemi ʻia nā oxides ma ka ʻili o ka pauka. I ka mahana sintering, hiki i ka hydrogen ke hoʻemi i nā oxides o ka cobalt a me ka tungsten. Inā hoʻoneʻe ʻia ka mea hana i loko o ka momi a hoʻopaʻa ʻia, ʻaʻole ikaika ka hopena carbon-oxygen. Hoʻopau mālie ʻia ke koʻikoʻi pili ma waena o nā ʻāpana pauka, hoʻomaka ka hoʻihoʻi hou ʻana o ka pauka metala paʻa, hoʻomaka ka diffusion o ka ʻili, a hoʻomaikaʻi ʻia ka ikaika briquetting.
2: Ke kahua hoʻopaʻa paʻa (800 ℃–eutectic wela)
I ka mahana ma mua o ka ʻike ʻia ʻana o ka pae wai, ma kahi o ka hoʻomau ʻana i ke kaʻina hana o ka pae mua, ua hoʻoikaika ʻia ka hopena paʻa a me ka diffusion, hoʻonui ʻia ka kahe plastic, a emi nui ke kino sintered.
3: ʻĀpana hoʻoheheʻe wai (eutectic wela - wela hoʻoheheʻe)
Ke ʻike ʻia ka ʻāpana wai i loko o ke kino i hoʻopaʻa ʻia, hoʻopau koke ʻia ka hōʻemi ʻana, a ukali ʻia e ka hoʻololi crystallographic e hana i ke ʻano kumu a me ke ʻano o ka alloy.
4: Kūlana hoʻoluʻu (sintering wela - lumi wela)
I kēia pae, loaʻa kekahi mau hoʻololi i ke ʻano a me ka hoʻohui ʻana o ka alloy me nā kūlana hoʻoluʻu like ʻole. Hiki ke hoʻohana ʻia kēia hiʻohiʻona e hoʻomehana i ka carbide cemented e hoʻomaikaʻi i kona ʻano kino a me ka mechanical.
Ka manawa hoʻouna: Apr-11-2022
