Puhi hope ʻo Tungsten carbide

ʻO ke ahi hope e pili ana i ke ʻano hoʻomaʻamaʻa hou ʻana no ka kulou ʻana i nā huahana deformed, infiltrated, decarburized huahana anā huahana tungsten carbideme nā pores nui loa.(1) Hoʻopau ʻana i nā huahana infiltrated a decarburized.Hoʻohana maʻamau ka carburizing a me ka puhi ʻana i nā ʻāpana graphite calcined kiʻekiʻe a i ʻole ka hui ʻana o nā ʻāpana graphite a me ka pauka Al2O3 ma ke ʻano he mea waena, a hana i ke ahi hope ma lalo o ka pale hydrogen.
Hoʻohana maʻamau ka decarburization a me ka backburning i ka pauka Al203 i hoʻopaʻa ʻia i ka wela kiʻekiʻe a i ʻole ka hui ʻana o ka pauka Al203 a me ka pauka W maikaʻi e like me ke ʻano, a hana ʻia ka backburning ma lalo o ka pale hydrogen.
(2) ʻOi aku ka porosity ma mua o ka maʻamau a puhi i hope.Ina ka porosity o tcarbide ungstennā huahana sintered (pores ʻaʻole i ʻoi aku ka nui ma mua o 25 μm) ma mua o ka maʻamau, hiki ke hoʻohana ʻia kahi umu sintering kaomi no ke kaomi ʻana i ke kaomi ma kahi o 10MPa.Pono ka mahana o ka sintering ma kahi o 20 ° C ma lalo o ka mahana sintering mua o ka huahana.ʻOi aku ka maikaʻi o ka hana ʻana i nā kaomi kiʻekiʻe me ka hoʻohana ʻana i ke kaomi isostatic wela.
(3) Hoopololei.Hana ʻia ka backburning ma ka hoʻohana ʻana i ke kaomi a me ka hoʻohana ʻana i ka pale hydrogen a i ʻole ka mokuʻāina ma kahi mahana ʻoi aʻe ma mua o ka wela eutectic.Hiki ke hoʻololi i ke kaumaha o ka hoʻoponopono ʻana a i ʻole ke hoʻonui ʻia ka mahana hoʻoponopono e like me ke kūlana hoʻoponopono o ka huahana, akā ʻaʻole pono ke kiʻekiʻe o ka mahana hoʻoponopono ma mua o ka mahana sintering mua o ka huahana.