Paipu Hoʻomalu RSiC
ʻIke Huahana
Nā paipu pale silikona carbidehe mau ʻāpana tubular kūikawā i hana ʻia me ka mea seramika silicon carbide (SiC), i hoʻohana nui ʻia e pale i nā mea koʻikoʻi (e like me nā thermocouples) a i ʻole he mau ʻāpana koʻikoʻi i nā lako lawe wai wela kiʻekiʻe a me nā lako hoʻololi wela.
Hana ʻia kā mākou huahana me ka hoʻohana ʻana i ʻekolu mau kaʻina hana:ʻO ka hana sintering (RBSiC), Recrystallization (RSiC), Silicon nitride i hoʻopaʻa ʻia me ka silicon carbide (NSiC)
1. Nā paipu pale RSiC
Me ka hoʻohana ʻana i ka pauka micro SiC maʻemaʻe kiʻekiʻe ma ke ʻano he mea maka, ua sintered ʻia ma nā mahana kiʻekiʻe (2000–2200 ℃). Hoʻokumu ʻia kahi ʻano paʻa ma o ka recrystallization a me ka fusion palena palaoa o nā ʻāpana SiC ponoʻī, me ka ʻole o ka pae hoʻopaʻa hou.
Nā ʻano koʻikoʻi:
Ke kū'ē'ē wela kiʻekiʻe loa:ʻO ka mahana hana lōʻihi a hiki i ka 1600 ℃, ke kū'ē pōkole i 1800 ℃, e lilo ia i mea maikaʻi loa ma ke ʻano o ke kū'ē wela kiʻekiʻe ma waena o nā ʻano ʻekolu, kūpono no nā umu wela kiʻekiʻe loa (e like me nā umu sintering ceramic a me nā umu pahū metallurgical).
Ke kūpaʻa ʻokikene maikaʻi loa:I nā mahana kiʻekiʻe, hoʻokumu ʻia kahi ʻili pale SiO₂ mānoanoa ma luna o ka ʻili, e pale ana i ka hoʻomake hou ʻia ʻana o ka SiC kūloko, e hōʻike ana i ke kūpaʻa kiʻekiʻe loa i nā lewa oxidizing.
Ka helu haʻahaʻa loa o ka hoʻonui wela:ʻO ke koina o ka hoʻonui wela he 4.5 × 10⁻⁶ /℃ wale nō, e hāʻawi ana i ke kūpaʻa haʻalulu wela maikaʻi, ʻoiai he haʻahaʻa iki ia ma mua o ka silicon nitride-bonded silicon carbide.
Paʻakikī kiʻekiʻe a me ke kūpaʻa kiʻekiʻe:Me ka paʻakikī Mohs kokoke i 9, hōʻike ia i ke kūpaʻa koʻikoʻi i ka ʻinoʻino a me ka abrasion o nā mea, e kūpono ai no ke kahe ʻana o ke ea wela kiʻekiʻe a me nā kūlana kahe wai e loaʻa ana nā ʻāpana paʻa.
Paʻa kemika ikaika:Kūpaʻa i nā waikawa ikaika a me nā alkalis, a ʻaʻole pane me ka hapa nui o nā metala i hoʻoheheʻe ʻia.
Nā Palena:
ʻO ka mahana sintering kiʻekiʻe loa, e hopena ana i ka porosity kiʻekiʻe iki aʻe (ma kahi o 5%–8%) a me ka nāwaliwali iki o ke kūpaʻa kiʻekiʻe; ʻo ka brittleness wela lumi kiʻekiʻe, a ʻo ke kūpaʻa hopena ʻaʻole maikaʻi e like me ka silicon nitride-bonded silicon carbide.
2. Nā paipu pale RBSiC
Me ka hoʻohana ʻana i nā ʻāpana SiC a me ka graphite ma ke ʻano he mea maka, ke hele nei ka mea i kahi kaʻina hana infiltration silicon. Hoʻokomo ka silicon wai a hoʻopiha i nā pores, e hana ana me ka graphite e hana i kahi pae SiC hou, a laila e hana ana i kahi ʻano hui o "SiC framework + free silicon".
Nā ʻano koʻikoʻi:
Kiʻekiʻe ka nui a me ka porosity haʻahaʻa:Hoʻopiha ka silicon manuahi i nā pores, e hōʻemi ana i ka porosity i lalo o 1%, e hopena ana i ka airtightness maikaʻi loa a me ke kūpaʻa kiʻekiʻe, kūpono no ke kaomi kiʻekiʻe a me ka mahana kiʻekiʻe
nā kūlana sila (e like me nā umu sintering kaomi).
Nā waiwai mīkini maikaʻi:ʻO ka ikaika kūlou o ka mahana o ka lumi 250–400MPa, ʻoi aku ka paʻakikī o ka haki ʻana, a ʻoi aku ka maikaʻi o ke kūpaʻa i ka hopena ma mua o ka silicon carbide i hoʻopili hou ʻia.
Ke kūpaʻa wela kiʻekiʻe:ʻO ka mahana hana lōʻihi he 1200℃. Ma luna o 1350℃, palupalu ka silicon manuahi, e alakaʻi ana i ka emi ʻana o ka ikaika a me ka palena ʻana i ka hana wela kiʻekiʻe.
Ka hiki ke hana maikaʻi:ʻO ka loaʻa ʻana o ka silicon manuahi e hōʻemi ana i ka brittleness o ka mea, e maʻalahi ai ka mīkini ʻana i nā ʻano paʻakikī, e hopena ana i nā kumukūʻai hana haʻahaʻa.
Nā Palena:
Ua kaupalena ʻia ka hana wela kiʻekiʻe e ka silicon manuahi, ʻo ia hoʻi ʻaʻole kūpono no ka hana lōʻihi ma luna o 1350 ℃; pane maʻalahi ka silicon manuahi me nā alkalis ikaika, ka alumini heheʻe, a me nā mea ʻē aʻe, e hopena ana i kahi pae kū'ē i ka pala.
3. Paipu pale NSiC
He mea hui ia i hoʻokumu ʻia ma ka hoʻopili paʻa ʻana i nā ʻāpana SiC i loko o kahi matrix silicon carbide ma ka hoʻoulu ʻana i ka Si₃N₄ ma ke ʻano he pae hoʻopaʻa ma o kahi hopena nitriding.
Nā Hiʻohiʻona Koʻikoʻi:
1. Ke kū'ē ʻana i ka haʻalulu wela kiʻekiʻe loa:ʻO ke koina haʻahaʻa o ka hoʻonui ʻana o ka wela a me ke kiʻekiʻe o ka paʻakikī o ka pae hoʻopaʻa Si₃N₄ e ʻae i ka paipu pale e kū i ka hoʻomehana wikiwiki a me ka hoʻoluʻu ʻana ma luna o 1000 ℃ me ka ʻole o ka haki ʻana ma muli o nā loli koke o ka mahana, e kūpono ai no nā kūlana hana me nā loli pinepine o ka mahana.
2. Kū'ē maikaʻi loa i ka palaho:Kūpaʻa loa i nā waikawa ikaika, nā alkalis ikaika, nā metala hoʻoheheʻe ʻia (e like me ka alumini a me ke keleawe), a me nā paʻakai hoʻoheheʻe ʻia, e kūpono loa ana no nā wahi ʻino i nā ʻoihana kemika a me ka metallurgical.
3. Ikaika Mechanical Kiʻekiʻe:ʻO ka ikaika o ka flexural mahana o ka lumi e hiki ai i 300-500 MPa, me ka paʻa ʻana o ka ikaika maikaʻi ma nā mahana kiʻekiʻe ma mua o nā huahana SiC maʻemaʻe, a me ke kūpaʻa ikaika i ka hopena.
4. Mahana Hana:ʻO ka mahana hana lōʻihi he 1350 ℃, hiki ke kū i ka manawa pōkole a hiki i ka 1500 ℃.
5. Hoʻopaʻa maikaʻi:Mālama i ka insulation uila maikaʻi ʻoiai i nā mahana kiʻekiʻe, e pale ana i ka hoʻopilikia ʻana o ka hōʻailona thermocouple.
Nā Palena:
ʻOi aku ka haʻahaʻa o ke kūpaʻa oxidation ma mua o ka silicon carbide i hoʻopili hou ʻia; ʻo ka hoʻohana lōʻihi ʻana i nā lewa oxidizing ikaika e alakaʻi ai i ka ʻili ʻana o ka papa oxide o ka ʻili.
Papa Hoʻohālikelike Hiʻohiʻona Koʻikoʻi
| ʻAno | Si₃N₄-SiC | R-SiC | RB-SiC |
| Mahana Hana Lōʻihi | 1350℃ | 1600℃ | 1200℃ |
| Ke kū'ē ʻana i ka haʻalulu wela | Kūpono loa | Maikaʻi loa | Waena |
| Nā Waiwai Antioxidant | Maikaʻi loa | Kūpono loa | Waena |
| Ke kū'ē ʻana i ka palaho | Ikaika (kūpaʻa i nā waikawa a me nā alkalis / metala hoʻoheheʻe ʻia) | Ikaika (kūpaʻa i ka oxidation a me ka corrosion) | Waena (E pale i nā alkalis ikaika/alumini hoʻoheheʻe ʻia) |
| Ka porosity | 3%–5% | 5%–8% | <1% |
| Ke kū'ē ʻana i ka hopena | Mana | Nāwaliwali | Waena |
Nā ʻOihana Maʻamau a me nā Hiʻohiʻona
1. NSiC thermocouple pale pale
ʻOihana Kemika:Ke ana ʻana o ka mahana i loko o nā kīʻaha hopena waikawa-kumu, nā pūnaewele electrolytic paʻakai heheʻe, a me nā pahu mālama waena corrosive; kū i ka pala lōʻihi mai nā waikawa ikaika, alkalis, a me nā paʻakai heheʻe; kūpono no nā kūlana hopena intermittent me nā loli pinepine o ka mahana.
ʻOihana Metallurgical:ʻO ke ana ʻana o ka mahana o ka metala hoʻoheheʻe ʻia i loko o nā ʻōmole hoʻoheheʻe alumini make, nā umu hoʻoheheʻe keleawe, a me nā umu hoʻoheheʻe metala non-ferrous; kūpaʻa i ka ʻinoʻino o ka metala hoʻoheheʻe ʻia, a ʻo kona pale wela kiʻekiʻe e pale aku i ka hoʻopilikia hōʻailona thermocouple.
ʻOihana Mea Hana Hale:Ke ana ʻana o ka mahana i loko o nā umu lime intermittent a me nā umu calcining gypsum; hiki ke hoʻomanawanui i ka hoʻomehana wikiwiki a me ka hoʻomaʻalili ʻana i hoʻokumu ʻia e ka hoʻomaka ʻana a me ka pani ʻana o ka umu; kūpaʻa i ka pala mai ke kinoea flue alkaline i loko o ka umu.
2. Nā Paipu Hoʻomalu Thermocouple RSiC
ʻOihana Mea Hana Hale:Ke ana ʻana o ka mahana ma nā wahi puhi ʻana i ka umu sima rotary, nā umu wili seramika, a me nā umu tunnel mea refractory; kū i nā mahana kiʻekiʻe loa o 1600 ℃ a me ka ʻino ikaika mai nā pauka wela kiʻekiʻe, kūpono no nā kūlana hana wela kiʻekiʻe mau.
ʻOihana Metallurgical:Ke ana ʻana o ka mahana i loko o nā paipu puhi wela o ka umu pahū, nā ʻōpuʻu kila hoʻoheheʻe ʻia, a me nā mea hana hoʻomākaukau hao hoʻoheheʻe ʻia; hiki ke hoʻohana ʻia no ka wā lōʻihi i nā lewa oxidizing ikaika, e kūʻē ana i ka pala mai ke kinoea flue wela kiʻekiʻe a me ka ʻōpala hao.
ʻOihana Aniani:Ke ana ʻana o ka mahana i nā mea hana hou o ka umu hoʻoheheʻe aniani a me nā ʻōmole hana aniani; kū i ka pala wela kiʻekiʻe a me ka ʻino ʻana mai ke aniani heheʻe, e hoʻokō ana i nā koi mahana kiʻekiʻe mau o ka hana aniani.
3. Nā Paipu Hoʻomalu Thermocouple RBSiC
ʻOihana Hana Mīkini:Ke ana ʻana o ka mahana i loko o nā umu mālama wela, nā umu hoʻopau kinoea, a me nā umu carburizing; kūpono no nā kūlana mahana waena a me ka haʻahaʻa paʻa, a hiki ke kū i ka ʻinoʻino iki o nā ʻāpana i loko o ka umu.
ʻOihana Mana:Ke ana ʻana o ka mahana no nā paila kaomi lewa, nā kapuahi pahū wela, a me nā mea hoʻōla wela ʻōpala; kūpono no nā lewa kūlike ʻole a nāwaliwali paha ka oxidation, e hoʻokō ana i nā koi ana wela i hoʻopaʻa ʻia mai ke kaomi haʻahaʻa a waena-kiʻekiʻe.
Nā Lako Hoʻokolohua:ʻO ke ana ʻana o ka mahana no nā umu sintering liʻiliʻi me ke kaomi kiʻekiʻe a me nā umu tubular hoʻokolohua; ʻo kona porosity haʻahaʻa a me ka ea e kūpono ai no nā wahi hoʻokolohua liʻiliʻi, i hoʻopaʻa ʻia me ke kaomi kiʻekiʻe.
Mea hao
Kemika
Mana
Lehulehu
Uila
Nā Uila ʻŌwili
ʻIkepili Hui
ʻO Shandong Robert New Material Co., Ltd.Aia ma ke kūlanakauhale ʻo Zibo, ka moku ʻo Shandong, Kina, he kahua hana mea refractory. He ʻoihana hou mākou e hoʻohui i ka noiʻi a me ka hoʻomohala ʻana, ka hana ʻana, ke kūʻai aku ʻana, ka hoʻolālā a me ke kūkulu ʻana i ka umu, ka ʻenehana, a me ka hoʻokuʻu aku i nā mea refractory. Loaʻa iā mākou nā lako piha, nā ʻenehana holomua, ka ikaika loea ikaika, ka maikaʻi o ka huahana maikaʻi loa, a me ka inoa maikaʻi. Uhi kā mākou hale hana ma mua o 200 ʻeka a ʻo ka hopena makahiki o nā mea refractory i hoʻohālikelike ʻia he 30000 tons a ʻo nā mea refractory i hoʻohālikelike ʻole ʻia he 12000 tons.
ʻO kā mākou huahana nui o nā mea refractory:nā mea kūpaʻa alkaline; nā mea kūpaʻa silicon alumini; nā mea kūpaʻa ʻano ʻole; nā mea kūpaʻa wela insulation; nā mea kūpaʻa kūikawā; nā mea kūpaʻa hana no nā ʻōnaehana hoʻolei mau.
Nā Nīnau i Nīnau Pinepine ʻia
Pono kōkua? E kipa aku i kā mākou mau kahua kākoʻo no nā pane i kāu mau nīnau!
He mea hana maoli mākou, ua loea kā mākou hale hana i ka hana ʻana i nā mea refractory no nā makahiki he 30 a ʻoi. Hoʻohiki mākou e hāʻawi i ke kumukūʻai maikaʻi loa, ka lawelawe mua a me ka lawelawe ma hope o ke kūʻai aku.
No kēlā me kēia kaʻina hana, loaʻa iā RBT kahi ʻōnaehana QC piha no ka hoʻohuihui kemika a me nā waiwai kino. A e hoʻāʻo mākou i nā waiwai, a e hoʻouna ʻia ka palapala hōʻoia maikaʻi me nā waiwai. Inā he mau koi kūikawā kāu, e hoʻāʻo mākou i ka maikaʻi loa e hoʻokō iā lākou.
Ma muli o ka nui, ʻokoʻa ka manawa hoʻouna. Akā ke hoʻohiki nei mākou e hoʻouna koke me ka maikaʻi i hōʻoia ʻia.
ʻOiaʻiʻo, hāʻawi mākou i nā laʻana manuahi.
ʻAe, ʻoiaʻiʻo, ua ʻoluʻolu ʻia ʻoe e kipa i ka hui ʻo RBT a me kā mākou huahana.
ʻAʻohe palena, hiki iā mākou ke hāʻawi i ka manaʻo maikaʻi loa a me ka hoʻonā e like me kou kūlana.
Ua hana mākou i nā mea refractory no nā makahiki he 30 a ʻoi, loaʻa iā mākou ke kākoʻo loea ikaika a me ka ʻike waiwai, hiki iā mākou ke kōkua i nā mea kūʻai aku e hoʻolālā i nā kilns like ʻole a hāʻawi i ka lawelawe hoʻokahi.
