He ʻano kiʻekiʻe ke ʻano o ka Needle Coke i hoʻomohala ikaika ʻia i loko o nā mea kalapona. ʻO kona ʻano he mea paʻa porous me ka hina kālā a me ka ʻōlinolino metala. He ʻano kahe maopopo kona ʻano, me nā lua nui akā kakaikahi a me ke ʻano oval iki. ʻO ia ka mea maka no ka hana ʻana i nā huahana kalapona kiʻekiʻe e like me ka electrode mana kiʻekiʻe loa, nā mea kalapona kūikawā, ka fiber kalapona a me kāna mau mea i hui pū ʻia.
Wahi a nā mea hana like ʻole, hiki ke hoʻokaʻawale ʻia ka nila coke i ʻelua ʻano nila coke i ka moʻo aila a me ka moʻo lanahu. ʻO ka nila coke i hana ʻia me ke koena petroleum ma ke ʻano he mea maka, ʻo ia ka nila coke moʻo aila. ʻO ka nila coke ana lanahu i hana ʻia mai ka pitch tar lanahu a ʻo kona ʻāpana ua kapa ʻia ʻo ka nila coke ana lanahu.
ʻO nā ʻōkuhi e hoʻopilikia i ka maikaʻi o ka nila coke e komo pū me ka ʻoiaʻiʻo maoli, ka nui o ka sulfur, ka nui o ka nitrogen, ka nui o ka volatile, ka nui o ka lehu, ka coefficient hoʻonui thermal, ke kū'ē uila, ka nui o ka haʻalulu-paʻa, a pēlā aku. Ma muli o nā coefficient ʻōkuhi kikoʻī like ʻole, hiki ke hoʻokaʻawale ʻia ka nila coke i ka super grade (superior grade), ka papa mua a me ka papa ʻelua.
ʻO ka ʻokoʻa hana ma waena o ka coke nila ana lanahu a me ka coke nila ana aila e komo pū ana me kēia mau mea.
1. Ma lalo o nā kūlana like, ʻoi aku ka maʻalahi o ka hana ʻana o ka electrode graphite i hana ʻia me ka coke nila moʻo aila ma mua o ka coke nila moʻo lanahu ma ke ʻano o ka hana.
2. Ma hope o ka hana ʻia ʻana o nā huahana graphite, ʻoi aku ka nui o ka mānoanoa a me ka ikaika o nā huahana graphitized o ka coke nila moʻo aila ma mua o ka coke nila moʻo lanahu, ka mea i hoʻokumu ʻia e ka hoʻonui ʻia ʻana o ka coke nila moʻo lanahu i ka wā o ka graphitization.
3. I ka hoʻohana kikoʻī ʻana o ka electrode graphite, ʻo nā huahana graphitized me ka coke nila aila he coefficient haʻahaʻa o ka hoʻonui wela.
4. Ma ke ʻano o nā ʻōkuhi kino a me nā kemika o ka electrode graphite, ʻoi aku ka kiʻekiʻe o ke kū'ē kikoʻī o nā huahana graphitized o ka coke nila moʻo aila ma mua o nā huahana coke nila moʻo lanahu.
5. ʻO ka mea nui loa, ʻo ia ka hoʻonui ʻana o ka nila coke ana lanahu i ke kaʻina hana o ka graphitization wela kiʻekiʻe, ke hiki ka mahana i 1500-2000 ℃, no laila pono e kāohi pono ʻia ka wikiwiki o ka piʻi ʻana o ka mahana, ʻaʻole e hoʻomehana wikiwiki, ʻoi aku ka maikaʻi o ka hoʻohana ʻole ʻana i ke kaʻina hana graphitization moʻo, e hoʻohui i nā mea hoʻohui i ka nila coke ana lanahu e kāohi i kona hoʻonui ʻana, hiki ke hoʻemi ʻia ka wikiwiki o ka hoʻonui ʻana. Akā ʻoi aku ka paʻakikī o ka hoʻokō ʻana i ka nila coke e pili ana i ka aila.
6. ʻOi aku ka liʻiliʻi o ka ʻike coke o ka ʻōnaehana aila calcined a ʻoi aku ka maikaʻi o ka nui o ka palaoa, ʻoiai ʻoi aku ka liʻiliʻi o ka ʻike coke o ke nila ana lanahu a ʻoi aku ka nui o ka palaoa (35-40 mm), hiki ke hoʻokō i ke koi nui o ka palaoa o ke ʻano hana, akā lawe mai i ka paʻakikī i ka wāwahi ʻana o ka mea hoʻohana.
7. Wahi a ka Japan Petroleum Coke Company, ua manaʻo ʻia he ʻoi aku ka maʻalahi o ka hoʻohuihui ʻana o ka coke nila moʻo aila ma mua o ka coke nila moʻo lanahu, no laila he maʻalahi ke kaohi i ka wā o ke kaʻina hana coking.
Mai ka manaʻo i luna, ʻehā mau haʻahaʻa o ka ʻōnaehana aila nila coke: haʻahaʻa ke koʻikoʻi kikoʻī, haʻahaʻa ka ikaika, haʻahaʻa CTE, haʻahaʻa ke kū'ē kikoʻī, ʻelua mau huahana graphite haʻahaʻa mua, a ʻelua mau huahana graphite haʻahaʻa hope loa. Ma keʻano laulā, ʻoi aku ka maikaʻi o nā helu hana o ka nila coke moʻo aila ma mua o ka lanahu nila coke moʻo, a ʻoi aku ka nui o ke koi no ka noi.
I kēia manawa, ʻo ka electrode graphite ka mākeke koi nui o ka nila coke, e helu ana ma kahi o 60% o ka hoʻohana holoʻokoʻa o ka nila coke, a ua maopopo ka noi o nā ʻoihana electrode no ka maikaʻi o ka nila coke, me ka ʻole o ke koi pilikino. ʻOi aku ka nui o ke koi no ka nila coke no nā mea anode pākahiko lithium ion, makemake ka mākeke kikohoʻe kiʻekiʻe i ka aila i kuke ʻia i ka coke, a ʻoi aku ka hilinaʻi o ka mākeke pākahiko mana i ka coke maka ʻoi aku ka maikaʻi.
He paepae loea ko ka hana ʻana o ka nila coke, no laila he kakaikahi nā ʻoihana kūloko. I kēia manawa, ʻo nā mea hana nui o ka nila coke moʻo aila kūloko ʻo Shandong Jingyang, Shandong Yida, Jinzhou Petrochemical, Shandong Lianhua, Bora Biological, Weifang Fumei New Energy, Shandong Yiwei, Sinopec Jinling Petrochemical, Maoming Petrochemical, a pēlā aku. ʻO nā mea hana nui o ka nila coke ana lanahu ʻo Baowu Carbon Material, Baotailong Technology, Anshan Kaitan, Angang Chemical, Fang Daxi Kemo, Shanxi Hongte, Henan Kaitan, Xuyang Group, Zaozhuang Zhenxing, Ningxia Baichuan, Tangshan Dongri New Energy, Taiyuan Shengxu, a pēlā aku.
Ka manawa hoʻouna: Dec-02-2022