Kiʻekiʻe kiʻekiʻe, kūlana maikaʻi loa a me ka machinability, ke kūpaʻa corrosion koʻikoʻi, ka modulus kiʻekiʻe o ka elasticity, ka conductivity thermal maikaʻi a me ka hoʻonui haʻahaʻa haʻahaʻa. Hōʻike mākou: kā mākou tungsten heavy metal alloys.
Hoʻohana ʻia kā mākou "kaumaha", no ka laʻana, i ka ʻoihana mokulele a me ka ʻoihana aerospace, ʻenehana lapaʻau, nā ʻoihana kaʻa a me nā ʻoihana foundry a i ʻole no ka ʻaila ʻaila a me ke kinoea. Hōʻike pōkole mākou i ʻekolu o kēia ma lalo nei:
ʻO kā mākou tungsten heavy metal alloys W-Ni-Fe a me W-Ni-Cu he kiʻekiʻe kiʻekiʻe loa (17.0 a 18.8 g / cm3) a hāʻawi i ka pale pono i ka X-ray a me ka radiation gamma. Hoʻohana ʻia ʻo W-Ni-Fe a me kā mākou mea non-magnetic W-Ni-Cu no ka pale ʻana no ka laʻana i ka lāʻau lapaʻau akā i ka ʻoihana ʻaila a me ke kinoea. Ma ke ʻano he collimators i nā mea hana radiation radiation e hōʻoia lākou i kahi hōʻike pololei. Ma ke kaupaona ana, hoʻohana mākou i ke kiʻekiʻe kiʻekiʻe o kā mākou tungsten heavy metal alloy. Hoʻonui liʻiliʻi wale ʻo W-Ni-Fe a me W-Ni-Cu i nā wela kiʻekiʻe a hoʻopau maikaʻi loa i ka wela. E like me ka hoʻokomo ʻana i ka mold no ka hana ʻana i ka alumini, hiki ke hoʻomaʻamaʻa pinepine ʻia a hoʻomaha ʻia me ka ʻole o ka palupalu.
Ma ke kaʻina hana Electrical Discharge Machining (EDM), ua mīkini ʻia nā metala i kahi pae kiʻekiʻe o ka pololei ma o ka hoʻokuʻu uila ma waena o ka mea hana a me ka electrode. Ke hiki ʻole ke keleawe a me ka graphite electrodes i ka hana, hiki i ka tungsten-copper-electrodes ke hoʻohana i nā metala paʻakikī me ka pilikia ʻole. I loko o ka plasma spray nozzles no ka ʻoihana uhi, ʻo nā waiwai waiwai o ka tungsten a me ke keleawe e hoʻopiha hou kekahi i kekahi.
ʻO nā metala koʻikoʻi tungsten infiltrated he ʻelua mau mea waiwai. I loko o ke kaʻina hana hana ʻelua, hoʻopuka mua ʻia kahi base sintered porous mai ka ʻāpana me ka helu hoʻoheheʻe kiʻekiʻe, no ka laʻana he metala refractory, ma mua o ka hoʻokomo ʻia ʻana o nā pores hāmama me ka mea liquified me ka helu heheʻe haʻahaʻa. ʻAʻole hoʻololi nā waiwai o kēlā me kēia ʻāpana. Ke nānā ʻia ma lalo o ka microscope, ʻike mau ʻia nā waiwai o kēlā me kēia ʻāpana. Ma ka pae macroscopic, ua hui pū ʻia nā waiwai o kēlā me kēia ʻāpana. Ma ke ʻano he ʻano metala hybrid, hiki i ka mea hou, no ka laʻana, ke loaʻa i nā waiwai hoʻoili wela a me nā waiwai hoʻonui wela.
Hana ʻia nā metala tungsten-kaumaha wai mai ka hui ʻana o nā pauka metala i kahi kaʻina hana hoʻokahi i ka wā e hoʻoheheʻe ʻia ai nā ʻāpana me nā wahi hoʻoheheʻe haʻahaʻa i ka poʻe me nā wahi hoʻoheheʻe kiʻekiʻe. I ka wā hoʻopaʻa paʻa, hana kēia mau ʻāpana i nā ʻāpana me nā mea i ʻoi aku ka nui o ka heheʻe. ʻO ka nui o ka tungsten, he wahi hoʻoheheʻe kiʻekiʻe, ua hoʻoheheʻe ʻia i ka wā o ka binder. Loaʻa ka waiwai o Plansee i nā mea hoʻohui i hoʻopaʻa ʻia i ka ʻāpana tungsten, modulus o ka elasticity a me ka hiki ke komo i ka radiation X-ray a me ka radiation gamma me ka ʻole o nā hemahema e pili ana i ka hana ʻana o ka tungsten maʻemaʻe. ʻO ka wela a me ka uila o nā ʻāpana i hoʻopaʻa ʻia i ka wai e hilinaʻi nui ʻia i ka hana i komo i loko o ka māhele binder.
Hoʻohui like nā mea hoʻolei hope i nā waiwai waiwai o nā mea ʻokoʻa ʻelua. I loko o kēia kaʻina hana, mālama ʻia nā mea pono i ko lākou kūlana mua a hoʻopaʻa ʻia ma kahi hui lahilahi. Hoʻohui ʻia nā metala i loko o kahi poʻi e hana i kahi paʻa o nā micrometers wale nō ka nui. ʻAʻole like me nā ʻenehana wili a me nā ʻenehana, paʻa loa kēia ʻano hana a hōʻoia i ka hoʻokele thermal maikaʻi loa.
Nā Huahana Wela no nā Alloy Kaumaha Tungsten
