Wahi a ka mea hana o ka pīhoihoi e huki ana i ka puna, pono e uku ʻia ka nānā kūikawā i ka decarburization a me ka maikaʻi o ka honua i ke kaʻina hana o ka kila kila. Ke decarburized ka pae kila, e hoʻemi nui ʻia ka palena o ka luhi. No nā steels puna silika kiʻekiʻe e like me 70Si3MnA, pono e hōʻalo i ka graphitization. No laila, ʻaʻole e haʻahaʻa loa ka mahana kū paʻa (≥850 ℃) i ka wā o ka wela, a ʻaʻole lōʻihi ka manawa o ka noho ʻana i ke ana wela (650 ~ 800 ℃) kahi maʻalahi e hana i ka graphitization.

Ma hope o ka hana ʻia ʻana o ka pūnāwai, hiki i ka lapa ʻana ke kī ʻana i ka peening ke hana i nā koina compressive residual, e hoʻoliʻiliʻi i kahi ʻāpana o ka hana ma luna o ka ʻāina, e kāohi i ke kūkulu ʻana i nā māwae, kahi e hoʻomaikaʻi maikaʻi ai i ka palena o ka luhi o ka puna.

Makemake maoli wau e ʻike iaʻu iho e makemake nei i ka MIM a i ʻole ka punawai / pūpū he maʻalahi loa ia, ʻo ka mea nui loa ia ʻoe e koho i kahi mea hana huahana metala ʻoihana, ʻenehana cluster palena palena paʻa pono paʻa paʻa., LTD. Iecaianoaaiiuo o nā 'ano o ka kiʻekiʻe miomio punawai, shrapnel no kālī hoʻokahi-holo lako paʻa huahana Hookah, e hoʻolako i nā mea mālama mai me ka metala ea ho okumu a me ka punawai / shrapnel a me nā mea e pili pū ana nā huahana.