ʻO nā hiʻohiʻona o kā mākou electrode graphite

ʻO nā hiʻohiʻona o kā mākougraphite electrode:

1. Kūʻai kūpaʻa a kūpono:

ʻO ke kumu kūʻai o nā mea graphite wale nō e koi i ka 15% o ka nui like o ka electrode keleawe. I kēia manawa, ua lilo ka graphite i mea kaulana no nā noi EDM, me nā kumukūʻai haʻahaʻa a ʻoi aku ka paʻa i hoʻohālikelike ʻia me nā mea graphite.

1. ʻOki maʻalahi a me ka hana ʻana
2. 4. Māmā a haʻahaʻa haʻahaʻa
3. ʻO ka mānoanoa o ka graphite he 1.7-1.9g/cm3 (ʻo 4-5 manawa ke keleawe o ka graphite). Ke hoʻohālikelike ʻia me nā electrodes keleawe, e hōʻemi nā electrodes graphite i ka ukana mechanical i kēia kaʻina hana. ʻOi aku ka maikaʻi no ka hoʻopili ʻana i nā mole nui.
4. 5. ʻO ka hana ʻoki maikaʻi
5. Ke hoʻohālikelike ʻia me nā mea metala, ua hoʻolālā ʻia ka nui o ka graphite e haʻahaʻa. Loaʻa iā ia ka hana hoʻoponopono mechanical maikaʻi loa.
6. 6. Ka hopena pili
7. Hiki ke hoʻopaʻa ʻia ka ʻīnika iliili ma o ka hoʻopili ʻana, e mālama ai i ka manawa a me nā kumu waiwai.
8. 7. ʻOi aku ka nui o ka resistivity
9. Hoʻoholo ka resistivity (ER) i ke kūʻē o ka mea i ke kahe o kēia manawa. ʻO ka resistivity haʻahaʻa ʻo ia ka conductivity.

Loaʻa i ka Graphite nā mea hana mīkini maikaʻi loa. ʻO ka wikiwiki machining o nā electrodes graphite he 2-3 mau manawa kiʻekiʻe ma mua o nā electrodes keleawe. I ka manawa like, ʻaʻohe pono e hopohopo e pili ana i nā burrs ma hope o ka hana graphite.

3. Haʻahaʻa hoʻonui wela wela

ʻO ka helu hoʻoheheʻe o ke keleawe he 1080 ℃, aʻo ka CTE o ka graphite he 1/30 wale nō o ke keleawe ma 3650 ℃. Loaʻa iā ia ka hana kūpaʻa a hiki i nā mahana wela. ʻOiai i ka hana ʻana o nā electrodes platinum, loaʻa i nā electrodes graphite nā pōmaikaʻi nui.