Sliding Nozzle

Cov zawv zawg nozzle yog cov cuab yeej tswj rau cov hlau molten thaum lub sij hawm casting txheej txheem ntawm lub tshuab nruam nruam. Nws tuaj yeem kho cov dej ntws los ntawm lub ladle mus rau qhov nruam casting tundish kom sib npaug ntawm qhov nkag thiab tawm ntawm cov hlau molten, yog li ua rau kev lag luam nruam nruam yooj yim los tswj. Thaum smelting Indispensable ib feem. Cov zawv zawg nozzle feem ntau yog tsim los ntawm cov cuab yeej tsav tsheb, cov khoom siv kho tshuab thiab cov khoom siv refractory (piv txwv li cov phaj sab sauv thiab sab qis, thiab lub nozzle).

Nrog rau txoj kev loj hlob sai thiab ua tau zoo nruam nruam casting thiab theem nrab refining thev naus laus zis thiab cov txheej txheem, zawv zawg nozzle (SN) system tau dhau los ua qhov tseem ceeb hauv cov txheej txheem steel niaj hnub no thiab tau dhau los ua ib feem tseem ceeb ntawm smelting. Nws yog ib qho cuab yeej tswj rau molten hlau thaum lub sij hawm casting txheej txheem ntawm lub nruam casting tshuab. Nws tuaj yeem kho cov dej ntws los ntawm lub ladle mus rau qhov nruam casting tundish kom sib npaug ntawm qhov nkag thiab tawm ntawm cov hlau molten, yog li ua rau kev lag luam nruam nruam yooj yim los tswj. Cov zawv zawg nozzle tau tsim sai heev vim nws qhov kev tswj tau zoo thiab nws lub peev xwm los txhim kho steelmaking ntau lawm efficiency. Niaj hnub no, cov zawv zawg nozzle feem ntau yog siv hauv ladles thiab tundishes hauv tsev thiab txawv teb chaws.

Txhawm rau kom tau txais kev pabcuam ntev thiab kev ua haujlwm ruaj khov, cov zawv zawg zawv zawg, raws li cov khoom siv refractory thiab txhua yam ntawm cov zawv zawg nozzle system, yuav tsum muaj kev ua haujlwm zoo. Tam sim no, txhawm rau ua kom qhov kev ua tau zoo ntawm qhov zawv zawg nozzle system ruaj khov thiab txhim khu kev qha, ntau yam kev txhim kho thiab kev tshawb fawb tau ua tiav ntawm cov duab thiab kho cov txheej txheem ntawm skateboard. Lub hom phiaj tseem ceeb yog txhawm rau txhawm rau tsim thiab nthuav dav ntawm cov kab nrib pleb ntawm qhov chaw ua haujlwm thaum siv cov skateboard.

Lub phaj zawv zawg (SP luv luv) yog ib qho tseem ceeb ntawm cov zawv zawg nozzle system. Raws li tus naj npawb ntawm cov swb blocks uas tsim cov zawv zawg nozzle, nws tuaj yeem muab faib ua ob - txheej txheej thiab peb - txheej txheej. Lub ladle swb feem ntau yog ob- txheej txheej. Sab saum toj swb yog tsau thaum lub sijhawm ua haujlwm, thiab cov swb qis yog siv los cuam tshuam thiab cuam tshuam qhov ntws. Lub phaj zawv zawg rau tundish feem ntau yog peb hom - txheej. Thaum lub sij hawm ua hauj lwm, lub sab sauv zawv zawg phaj yog tsau rau lub sab sauv nozzle, thiab cov zawv zawg phaj yog tsau rau hauv qab nozzle. Qhov nruab nrab zawv zawg phaj yog siv los cuam tshuam thiab throttle qhov ntws.

Taxonomy

(1) Cov zawv zawg zawv zawg tuaj yeem muab faib ua ob - txheej skateboards thiab peb - txheej skateboards raws li tus naj npawb ntawm skateboards. Ob - txheej skateboard txhais tau hais tias lub sab sauv skateboard tsis txav thiab qis skateboard swb tom qab lub tshuab. Ob - txheej skateboard feem ntau yog siv rau ntawm lub ladle mechanism. Qhov peb - txheej zawv zawg phaj yog tias lub phaj sab sauv thiab sab qis tsis txav, thiab qhov nruab nrab zawv zawg phaj swb nrog cov txheej txheem los tswj thiab kho qhov ntws ntawm cov hlau molten; peb - txheej zawv zawg phaj feem ntau yog siv los ntawm tundish mechanism. Tus yam ntxwv ntawm peb- txheej skateboard yog qhov zawv zawg phaj hauv nruab nrab tsis siv cov av nplaum hluav taws, tab sis yog kho nrog cov hlau sawb, uas ua lub luag haujlwm zoo hauv kev tswj cov kab nrib pleb. Nyob rau tib lub sijhawm, kev sib luag ntawm cov skateboard yuav tsum nruj me ntsis tswj. Nyob rau theem pib ntawm kev nchuav, txhawm rau tiv thaiv molten hlau los ntawm condensing nyob rau hauv cov hlau channel ntawm zawv zawg nozzle, ib tug stopper qws yog ntsia los tiv thaiv cov hlau molten los ntawm ntws mus rau hauv lub nozzle channel, tuav lub molten steel tsim ib tug tsim nyog cov kua theem nyob rau hauv lub tundish, thiab nruj me ntsis tiv thaiv condensation ntawm molten steel los yog nonmetal replicions thaum {14}. Thaiv channel.

(2) Muaj ob hom zawv zawg nozzles raws li lawv txoj kev txav: hom kab thiab hom teb. Tam sim no, feem ntau cov nroj tsuag steel hauv tsev thiab txawv teb chaws siv cov txheej txheem tawm, thiab cov txheej txheem teb tsis tshua siv.

(3) Ntxiv rau kev faib cov skateboards raws li lawv cov qauv thiab kev txav mus los, lawv tuaj yeem raug cais raws li lawv cov khoom siv, kev tua hluav taws thiab txoj kev molding. Raws li cov txheej txheem khoom, nws tau muab faib ua aluminium zirconium carbon skateboard, zirconium skateboard, aluminium carbon skateboard, magnesium skateboard, hlau bonded skateboard thiab siab aluminium skateboard; Raws li txoj kev tua hluav taws, nws tau muab faib ua qhov kub thiab txias raug rho tawm haujlwm skateboard, nruab nrab kub raug rho tawm haujlwm skateboard thiab unfired skateboard. . Raws li txoj kev molding, nws muab faib ua txhua yam - cov khoom siv skateboards thiab cov khoom sib xyaw skateboards. Tam sim no, steel mills hauv Suav teb siv tag nrho - khoom siv skateboards rau ladles saum 150t, ladles nrog ntau yam nruam castings lossis tshwj xeeb steelmaking txheej txheem yuav tsum tau. Muaj ntau lub tshuab steel uas siv cov skateboards sib xyaw rau ladles hauv qab 150t. Feem ntau steel mills txawv teb chaws siv tag nrho cov khoom siv skateboards.

High aluminium skateboard. Tom qab molding, lawv yog impregnated nrog asphalt thiab maj mam raug rho tawm haujlwm kom tau txais lub zog ntau dua thiab cov qauv ntom ntom ntom ntom. Phosphate yog ntxiv rau cov khoom xyaw kom txo qhov kub ntawm qhov hluav taws kub, uas stabilizes qhov ntev ntawm cov swb thiab txo cov seem thiab sib tsoo.

Zirconium skateboard muaj. Kev ua haujlwm zoo rau kev yaig tshuaj lom neeg thiab kev ua haujlwm zoo rau cov neeg kho tshuab yaig. Txawm li cas los xij, zirconia yog kim heev thiab feem ntau yog ua rau hauv inlaid rings lossis inlays.

Aluminium Carbon Skateboard Cov. Aluminium carbon skateboard yog ib yam khoom tsim tawm thaum xyoo 1970s. Nws siv sintered alumina thiab hluavtaws mullite ua cov ntaub ntawv tseem ceeb, thiab ntxiv cov khoom siv roj carbon thiab cov tshuaj tua kab mob (xws li hlau aluminium, hlau silicon, SiC, B4C, Mg) mus rau qhov matrix . -B, thiab lwm yam), ntxiv thee pitch los yog phenolic resin raws li ib tug binder los sib tov thiab tsim; hlawv nyob rau hauv ib qho kev txo qhov cua kom tsim tau cov pa roj carbon- cov khoom siv refractory bonded. The skateboard made of this material has good corrosion resistance due to its dense structure, fine pores and a certain amount of residual carbon, which is difficult to be impregnated with liquid steel and slag. Txawm li cas los xij, nws qhov tsis zoo yog tias cov thermal shock kuj raug txo vim yog cov qauv ntom. , tsis tuaj yeem siv tsis tu ncua rau ntau zaus. Tsis tas li ntawd, thaum siv, cov pa roj carbon monoxide tau yooj yim oxidized, uas ua rau cov qauv xoob thiab txo cov corrosion kuj.

Aluminium carbon skateboards yog tsim los ntawm kev raug rho tawm haujlwm aluminium carbon skateboards. Cov khoom siv skateboard no siv qis qis qis Al2O3 -SiO2 -ZrO2 series raw cov ntaub ntawv los ua cov ntaub ntawv refractory nrog baddeleyite, mullite, corundum, thiab lwm yam raws li lub ntsiab siv lead ua theem thiab cov yam ntxwv ntawm carbon bonding. Zirconium mullite tau qhia ua ke, thiab zirconium oxide nyob rau hauv zirconium mullite yog siv los ua kom muaj kev hloov pauv crystalline ntawm li 1000 degree, nrog rau ntim ntim thiab cov kab nrib pleb hauv cov nplej, uas zoo heev txhim kho cov khoom siv tau ntev. Thermal shock kev ua tau zoo. 2r02 muaj kev tiv thaiv corrosion zoo heev, thiab nws cov corrosion kuj yog siab dua li ntawm aluminium carbon skateboards. Nws tau dhau los ua lub ntsiab ntawm skateboards siv los ntawm cov tuam txhab hlau loj niaj hnub no.

Aluminium (zirconium) carbonaceous raw khoom. Corundum, zirconium corundum, zirconium mullite, graphite, zirconia, resin binder, hlau Al hmoov, Mg-Al alloy, thiab lwm yam.