Loaʻa i nā metala tungsten refractory a me nā alloys tungsten ka maikaʻi o ke kūpaʻa wela kiʻekiʻe, ke kūpaʻa kiʻekiʻe i ka neʻe electron a me ka coefficient emission electron kiʻekiʻe. Hoʻohana nui ʻia ka tungsten maʻemaʻe kiʻekiʻe a me ka tungsten alloy no ka hana ʻana i nā electrodes ʻīpuka, nā wili hoʻohui, nā ʻāpana pale diffusion o nā semiconductor integrated circuits. Loaʻa iā lākou nā koi kiʻekiʻe e pili ana i ka maʻemaʻe, ka mea impurity element content, density, grain size and uniform grain structure of materials. E nānā kākou i nā mea e hoʻopili ai i ka hoʻomākaukau ʻana i ka pahu tungsten maʻemaʻe kiʻekiʻeby Rich Special Material Co., Ltd.
I. Ka hopena o ka wela Sintering
Hana ʻia ke kaʻina hana o ka tungsten target embryo e ke anuanu isostatic pressure. E ulu ana ka palaoa tungsten i ka wā o ka sintering. ʻO ka ulu ʻana o ka palaoa tungsten e hoʻopiha i ke āpau ma waena o nā palena aniani, pēlā e hoʻonui ai i ka nui o ka tungsten target. Me ka hoʻonui ʻana o nā manawa sintering, e lohi mālie ka piʻi ʻana o ka tungsten target. ʻO ke kumu nui ʻaʻole i loli nui ka maikaʻi o ka tungsten target material ma hope o nā kaʻina sintering. No ka mea, ʻo ka hapa nui o nā hakahaka o ka palena aniani e hoʻopiha ʻia e nā kristal tungsten, ʻoi aku ka liʻiliʻi o ka nui o ka nui o ka hoʻololi ʻana o ka pahu tungsten ma hope o kēlā me kēia kaʻina sintering, kahi e hoʻonui ai i ka palena palena no ka hoʻonui ʻana i ka nui o ka tungsten. I ka hoʻomaka ʻana o ka sintering, hoʻopiha ʻia nā kīʻaha tungsten nui i loko o nā lua, e hopena i kahi pahuhopu ʻoi aku ka liʻiliʻi.
2. Ka hopena ohʻai ka mālama ʻana
Ma ka mahana sintering like, hoʻomaikaʻi ʻia ka compactness o nā mea i hoʻopaʻa ʻia me ka hoʻonui ʻana o ka manawa sintering. Me ka hoʻonui ʻana o ka manawa sintering, piʻi ka nui o ka tungsten grain, a me ka hoʻonui ʻana o ka manawa sintering, e lohi mālie ka ulu ʻana o ka nui o ka palaoa. Hōʻike kēia i ka hoʻonui ʻana i ka manawa sintering hiki ke hoʻomaikaʻi i ka hana o ka tungsten target.
3. Ka hopena o ka holo ʻana ma luna o ka pahuhopu Poihana
I mea e hoʻomaikaʻi ai i ka nui o nā mea ʻimi tungsten a loaʻa i ke ʻano o ka hana ʻana o nā mea i hoʻopaʻa ʻia i ka tungsten, pono e hoʻokō ʻia ka ʻōwili ʻana o ka wela wela ma lalo o ka mahana recrystallization. Ke kiʻekiʻe ka wela o ka pahu pahu pahu pahu, ʻoi aku ka mānoanoa o ke ʻano o ka pahu pahu pahu pahu, akā ʻoi aku ka maikaʻi o ka pahu pahu pahu. Ke piʻi aʻe ka hua o ka ʻōwili wela ma luna o 95%. ʻOiai e hoʻopau ʻia ka ʻokoʻa o ka hoʻolālā fiber ma muli o ka sintering ʻokoʻa i ka palaoa kumu a i ʻole ka wela o ka ʻōwili ʻana, e hoʻokumu ʻia ke ʻano o ka fiber homogeneous i loko o ka pahuhopu, no laila ʻoi aku ka kiʻekiʻe o ka hana ʻana o ka ʻōwili wela, ʻoi aku ka maikaʻi o ka hana o ka pahuhopu.
Ka manawa hoʻouna: Mei-05-2022