Stiɛl Fayba fɔ Rifraktɔri Kastabl: Mɛlt Ɛkstrakshɔn, Gred ɛn Tɛmal Shɔk

Atikul

Jun 15, 2016

Rifraktri fayba ɛn strɔkchɔral fayba na difrɛn prɔdak, frɔm bays matirial to shep. Yuz huk strɔkchɔral fayba na kastabul na di mistek we kɔmɔn ɛn we dia pas ɔl na dis kategori.

Refractory Fiber ɛn Structural Fiber Na Difrɛn Prodakt dɛn

Fɔ drɔp huk strɔkchɔral fayba insay wan refractory castable na di mistek we kɔmɔn ɛn we dia pas ɔl na dis kategori. di strכkchכral fayv de tכp aut arawnd 300 to 400 C; oba dat trεnk de fכl εn di kכt dεm de fεl. Refractory castables de rɔn na 800 to 1400 C ɛn di layn de tek bak kwik ɔt ɛn kol. Rifraktri fayba difrɛn pan matirial, insay fɔm ɛn in shep: di bays na stenlɛs stiɛl, di prɔses na mɛlt ɛkstrakshɔn, ɛn di shep na irɛgyula tri-dimɛnshɔnal klasta. di gol nכto tεnsil strכng bכt fכ rεsist כksidεshכn εn dכst na tεmprachכ we i de intalכk wit di kastabl.

Melt Extraction: Wetin Mek Irɛgyula 3D Shep dɛn Ankɔ Bɛtɛ

We dɛn pul di mɛlt, i kin trowe di stenlɛs stiɛl we dɔn rɔtin wit ay-vɛlositi ɛya ɔ wan wil we de spin ɛn i kin mek i kol fɔ mek i bi fayv we i de flay. Nɔ drɔin nɔ de insay, so di shep nɔ de ɔltɛm: i kɔba, sɔntɛnde i gɛt branch, i kin difrɛn pan di tik. Dat irɛgyulariti na in de mek tru tru tri-dimɛnshɔnal intalɔk na di kastabl instead ɔf di klin frikshɔn we wan stret waya de mek. insay kכmparativ tεst, mεlt-εkstrakt fayv de rayz mכdulus fכ rכpchכ notis mכr pas strεt fayv pan ikwal dכz, εn di rizin na ankכrej jכmetri. Dispershɔn na di sɛkɔn bɛnifit: di fayv we dɛn pul wit mɛlt de separet insay dray ɔ wet miks ɛn bon to di kastabl we nɔ de lɛf voyd, ɛn wan voyd na layn na usay spalin de bigin.

304, 310S ɛn 446: Tɛmpratura De Disid di Gret

Tri gred de kɔba tri tɛmpracha band ɛn dis na di fɔs disizhɔn. 304 na di standad gred fɔ kɔntinyu savis to 650 C; 310S, we dɛn kin sɛl bak as 2520, de kɔba intamɛdiet ɛn ay tɛmpracha to 1200 C; 446 na di ay-tεmpratura כksidεshכn rεsistεnt grεd to 1400 C. Pik tu lכw εn di fayv de כksidayz, lכs sεkshכn εn di layn de fεl ali; pik tu ay ɛn di kɔst de west. Di kwɛshɔn nɔto di ɔfna maksimam bɔt di lɔng tɛm tɛmpracha na di layt we di fayv sidɔm insay.Wan layn gɛt gradient, wit 1400 C na di hot fes ɛn sɔntɛm 800 C na di bak, so di tu layers kin yuz difrɛn gred.

Tɛmral Shok: Twɛnti Wata Kwɛnch frɔm 1000 C

Eti pasɛnt pan di tin dɛn we nɔ de wok fayn nɔ kin bɔn bɔt dɛn kin shek dɛn we dɛn kin ɔt ɛn kol kwik kwik wan. di valyu fכ stεl fayv insay tεmכl shכk de arεs krak growth: afta di matris krak, fayv de brij di krak, de ol in wit sכm εn i de mek i nכ spall. Di mɛzhɔ na saykl, we dɛn kin kwɛn frɔm 1000 C insay wata, twɛnti tɛm we nɔ krak ɔ spal. Dat tɛst de tɔk mɔ bɔt savis layf pas modulus fɔ rupchɔ, bikɔs wan shutdown kin kol fast pas wan ɔt-ap.

Doz de fala di Layning Sistem, Nɔto wan Jɛnɛrik kg/m3

Strukchɔral kɔnkrit gɛt wok rɛnj we de frɔm 30 to 80 kg/m3; refractory castables nɔ de du dat. di doz dipכnt pan agregεt gredin, wata dimand, plesin mεtכd (kכst, ram, gכn) εn layn tik, εn tipikli fכ fכl bitwin 0.5% εn 2% bay volyum. Tumɔs ɛn wokabiliti fɔdɔm, di kru ad wata, ɛn ad wata de pwɛl refractoriness. Dat na di mɔs kɔmɔn fil fayl na dis prɔdak. Di kɔrɛkt prɔses na fɔ mek di refractory spɔlayt gi di miks dizayn ɛn di fayba mek fɔ saplae agens am, ɔl tu de wok frɔm wan tɛknikal agrimɛnt.

Explosive Spalling: Wetin Mek Fayba De Ridyus Am

We dɛn ɔt am fɔs, di wata we de insay di kastabl kin tɔn to stim, ɛn if i nɔ ebul fɔ rɔnawe di prɛshɔn kin split di layn. Stilin fayba de ɛp bay we i de gi kɔnɛkt rod fɔ vapour ɛn bay we i de brij krak krak so dat dɛn go opin smɔl smɔl, we de tɔn wan bɔrst to krak. Fɔ tik layn ɛn wet lɔw-simɛnt kastabl dis impɔtant pas di trɛnk we dɛn gɛt. Sɔm miks dɛn kin ad ɔrganik fayv bak wit mɛlt pɔynt nia 165 C, we kin bɔn kwik ɛn lɛf vent chanɛl dɛn, we kin kɔmplit di stɛl fayba. Na dat mek tu kayn fayv dɛn kin apia bɔku tɛm insay wan rifraktɔri rɛsipɛkt.

Di Narrow 0.5 to 2 Pasɛnt Windo na Kastabl

Stilin fayba de go insay refractory castable fɔ resist thermal shock spalling, nɔto fɔ rayz kol trɛnk, na dat mek di dosage winda smɔl: 0.5 to 2 pasɛnt bay volyum, wit mɔs aplikeshɔn dɛn nia 1 pasɛnt. Dכn 0.5 pasεnt na tu fכ fכs fayv dεm de na krak plen fכ brij am. כp 2 pasεnt di fayv dεm de intafεr we dεn de miks, wokabiliti kכlaps, εn vaybrεshכn de prodyuz כryenteshכn layεr we de lεf wik plen bitwin layεr dεm. di fayv lεngth tay to di maksimal agregεt saiz, nכmal at le tri tεm dat saiz, כdasay agregεt de blכk di fayv εn nכ kכntinyu nεtwכk fכm; bכt pas 40 mm di fayv de sεtul we i de vaybrεshכn. Miks ɔda de mek mɔ fayl pas di doz. Dray-blend di paoda ɛn di fayv fɔ tu to tri minit so di fayv go skata insay di paoda, dɔn ad wata; nɔ ɛva ad wata fɔs ɛn sprinkul fayv afta dat, dat kin ɔltɛm bɔl. Di dray-ɔut kɔv de disayd di autkam: ol na 150 digri sɛlshiɔs fɔ drayv ɔf fri wata, ol na 350 fɔ drɛb ɔf wata we dɛn tay wit kemikal, ɛn na afta dat nɔmɔ yu go klaym ɔp 600 fɔ savis tɛmpracha, wit tɛm na ɛni stɛp we dɛn skel to tik. Hɛt tu fast ɛn intanɛnt stim prɛshɔn nɔ gɛt say fɔ go, di sɔfa spall, ɛn dat na di wan fayl mɔd fayv nɔ ebul fɔ sev. Gred de fala di ɔfna: 304 dɔŋ 650 digri sɛlshiɔs, 310S ɔp 1000, ɛn 446 nɔmɔ fɔ kiln zon dɛn we de arawnd 1400.

Tri Kwɛstyɔn dɛn fɔ Aks Wan Spɔla

Tri kwɛstyɔn dɛn de filta mɔs refractory fiber spɔlayt dɛn. Fɔs, na di bays gred 304, 310S ɔ 446, ɛn na matirial sɛtifiket we de. sεkכn, wetin na di aktual dayamita εn lεngth rεnj dεm, tipikli 0.3 to 0.5 mm dayamita εn 15 to 20 mm lεngth, εn dεn kin kכt dεm to layn tik. Tɔd, na thermal shock cycle data de. Fɔ gred ɛn tɛmpracha retinj, di rifraktɔri sɛkshɔn na di stɛl fayba prodak pej de list 304, 310S, 446 ɛn 430 wit tɛmpracha ɛn tɛmral shɔk data, we dɛn kin ataya dairekt to di inkwyuizhɔ as tɛknikal aneks.