Pono au e hoʻohana i nā aila kaʻa me ka molybdenum?
Nā mea
Aia nā loiloi maikaʻi a maikaʻi ʻole e pili ana i nā aila kaʻa me ka molybdenum. Manaʻo kekahi e hāʻawi kēia additive i nā aila maikaʻi loa. 'Ōlelo kekahi poʻe e hoʻopau ka molybdenum i ka mīkini. Ke manaʻoʻiʻo nei kekahi poʻe ʻo ka haʻi ʻana i ke ʻano o kēia metala i loko o ka hui ʻana o ka ʻaila he hana kūʻai wale nō ia a ʻaʻole ʻokoʻa ka ʻaila me nā mea ʻē aʻe.
He aha ka molybdenum i hoʻohana ʻia i nā aila kaʻa
He mea nui e ʻike ʻaʻole i hoʻohana ʻia ka molybdenum maʻemaʻe i ka aila. Hoʻohana wale ʻia ka molybdenum disulfide (molybdenite) me ke ʻano kemika MOS2 - hoʻokahi molybdenum atom i hoʻopaʻa ʻia i ʻelua mau ʻātoma sulfur. Ma ke ʻano maoli, he pauda ʻeleʻele, paheʻe i ka hoʻopā ʻana, e like me ka graphite. Waiho i kahi kaha ma ka pepa. ʻO ka "ʻaila me ka molybdenum" kahi huaʻōlelo maʻamau i ke ola o kēlā me kēia lā, i ʻole e paʻakikī i ka ʻōlelo me nā huaʻōlelo kemika.
Aia nā ʻāpana Molybdenite i ke ʻano o nā ʻāpana microscopic me nā waiwai lubricating kūikawā. Ke paʻi kekahi i kekahi, paheʻe lākou, e hōʻemi nui ana i ka hakakā.
He aha nā pōmaikaʻi o ka molybdenum
Hoʻokumu ʻo Molybdenite i kahi kiʻiʻoniʻoni ma nā ʻāpana friction o ka mīkini, i kekahi manawa multi-layered, pale iā lākou mai ka ʻaʻahu a lawelawe ʻo ia ma ke ʻano he anti-seize agent.
ʻO ka hoʻohui ʻana iā ia i nā aila kaʻa e hāʻawi i kekahi mau pono nui:
- ma ka ho'ēmiʻana i ka friction, hoʻemi nui ka wahie;
- e holo mālie a mālie ka ʻenekini;
- ke hoʻohana ʻia me nā aila viscosity kiʻekiʻe, hiki i kēia mea hoʻohui, no ka manawa pōkole, akā e hoʻolōʻihi i ke ola o kahi ʻenekini ʻā ma mua o ka hoʻoponopono ʻana.
Ua ʻike ʻia kēia mau waiwai kupanaha o ka molybdenite e nā ʻepekema a me nā mīkini i ka hapa mua o ke kenekulia 20. I kēia manawa i ke Kaua Honua ʻElua, ua hoʻohana ʻia kēia mea hoʻohui i nā mea kaua o ka Wehrmacht. Ma muli o ke kiʻiʻoniʻoni molybdenite ma nā ʻāpana koʻikoʻi o nā ʻenekini, no ka laʻana, hiki ke neʻe ka pahu no kekahi manawa ma hope o ka nalowale ʻana o ka aila. Ua hoʻohana ʻia kēia ʻāpana i nā helikopter US Army, a ma nā wahi ʻē aʻe he nui.
I ka wā e hiki ai i ka Molybdenum ke pōʻino
Inā loaʻa nā mea hoʻohui wale nō, a laila ʻaʻohe kumu e kamaʻilio e pili ana i nā helu maikaʻi ʻole. Eia nō naʻe, aia nā kumu like.
ʻO ka Molybdenum, e komo pū me ka disulfide, hoʻomaka i ka oxidize i nā mahana ma luna o 400C. I kēia hihia, hoʻohui ʻia nā moleke oxygen i nā molekele sulfur, a ua hoʻokumu ʻia nā mea hou loa me nā waiwai like ʻole.
No ka laʻana, i ke alo o nā mole wai, hiki ke hana ʻia ka sulfuric acid, kahi e luku ai i nā metala. Me ka ʻole o ka wai, hoʻokumu ʻia nā pūhui carbide, ʻaʻole hiki ke waiho ʻia ma nā ʻāpana ʻōpala mau, akā hiki ke waiho ʻia i nā wahi passive o ka hui piston. ʻO ka hopena, ʻo ka coking o nā apo piston, scuffing o ke aniani piston, ka hoʻokumu ʻana o ka slag a hiki i ka hiki ʻole o ka mīkini.
Kākoʻo ʻia kēia e ka noiʻi ʻepekema:
- Ke hoʻohana nei i ka TEOST MHT no ka loiloi ʻana i ka Oxidation Fundamental in Low Phosphorus Engine Oils (STLE);
- ʻIkepili o ka waihona hoʻokumu ʻana ma TEOST 33 C e ka ʻaila ʻenekini i loaʻa iā Mo DTC;
- Ke hoʻomaikaʻi nei i ka hoʻokele waiwai me MoDTC me ka hoʻonui ʻole ʻana i ka waihona TEOST33C.
Ma muli o kēia mau haʻawina, ua hōʻike ʻia ʻo ka molybdenum disulfide, ma lalo o kekahi mau kūlana, e hana ma ke ʻano he catalyst no ka hoʻokumu ʻana i nā waihona carbide.
No laila, ʻaʻole ʻōlelo ʻia nā aila me kēlā mea hoʻohui no ka hoʻohana ʻana i nā ʻenekini kahi i ʻoi aku ka mahana o ka hana ma kahi o ka hana paila ma luna o 400 degere.
ʻIke pono nā mea hana i nā waiwai o kā lākou mīkini. No laila, hāʻawi lākou i nā ʻōlelo aʻoaʻo e hoʻohana ʻia ai nā aila. Inā pāpā ʻia ka hoʻohana ʻana i nā aila me ia mau mea hoʻohui, a laila ʻaʻole pono e hoʻohana ʻia.
Eia kekahi, hiki i ia ʻaila ke pāʻani i kahi lawelawe maikaʻi ʻole ma kekahi ʻenekini i ka wā e wela ai ma luna o 400C.
ʻO ka Molybdenite kahi mea kū'ē i ka pilikia mechanical. ʻAʻole maʻalahi i ka mae a me ka mae. Eia naʻe, ʻaʻole pono e holo ka ʻaila molybdenum ma mua o ka mile mile i manaʻo ʻia e ka mea hana no ka mea he pilikia paha ka waihona kumu nui a me nā mea hoʻohui ʻē aʻe.
Pehea e ʻike ai e pili ana i ka hele ʻana o ka molybdenum i ka ʻaila ʻenekini
Me ka hoʻokūkū ikaika i ka mākeke aila kaʻa, ʻaʻohe mea hana e hōʻino i kāna ʻoihana ma ka hoʻohui ʻana i nā mea hoʻohui ʻino i ka aila. Eia kekahi, ʻaʻohe mea hana e hōʻike i ke ʻano o kā lākou ʻaila piha, no ka mea he mea huna ʻoihana koʻikoʻi kēia. No laila, hiki ke loaʻa ka molybdenite i nā nui like ʻole i nā aila mai nā mea hana like ʻole.
ʻAʻole pono ka mea kūʻai maʻalahi e lawe i ka ʻaila i ka hale hana e ʻike ai i ka hele ʻana o ka molybdenum. No ʻoe iho, hiki ke hoʻoholo ʻia kona hele ʻana e ke kala o ka ʻaila. ʻO ka Molybdenite heʻeleʻele hina aʻeleʻele paha a hāʻawi i nāʻaila i kahi hueʻeleʻele.
Mai ka manawa o ka USSR, ua hoʻonui pinepine ʻia ka waiwai o nā mīkini kaʻa. A ʻo ka maikaʻi o kēia ʻaʻole wale nā mea automakers, akā ʻo nā mea hana i nā aila hou. ʻO ka pilina o nā aila me nā mea hoʻohui like ʻole a me nā ʻāpana kaʻa e aʻo ʻia ma ke ʻano maoli ma ka pae o nā atom. Hoʻoikaika kēlā me kēia mea hana e lilo i mea maikaʻi loa i ka hakakā paʻakikī no ka mea kūʻai aku. Ke hana ʻia nei nā haku mele hou. No ka laʻana, ma kahi o ka molybdenum, hoʻohana ʻia ka tungsten disulfide. No laila, ʻo ka palapala hopu "Molybdenum" he hana kūʻai pōʻino ʻole. A ʻo ka hana a ka mea makemake kaʻa ʻo ke kūʻai ʻana i ka aila kumu (ʻaʻole hoʻopunipuni) mai kahi mea hana i manaʻo ʻia.
