Slit-type breathable brick core

Category: Slit Breathable Brick Core

Slit-oriented air-permeable bricks Slit-oriented air-permeable bricks are commonly used structural forms of air-permeable bricks. According to the on-site use conditions, including refined steel type, refining process, ladle capacity, temperature, steel hydrostatic pressure, etc., a reasonable design of slits can make The blow-through effect of the air-permeable brick is achieved, the life span in use is increased, and the safety performance is stable. When compared with the performance of external air-permeable bricks, the air permeability and service life of the bricks are better than those of foreign advanced products, which meets the requirements of performance indicators for ladle refining production.

Performance:

1. Iska caabin shiil

Si loo wanaajiyo iska caabbinta alaabta iyo iska caabbinta birta dareeraha ah, Cr2O3 ama qayb ka mid ah corundum chromium ayaa sida caadiga ah lagu daraa lebenka hawada ee roodhida leh ee corundum spinel. Cr2O3 iyo a-Al2O3 waxay leeyihiin qaab dhismeed isku mid ah. Cr2O3 ma aha oo kaliya hagaajinta iska caabin slag ah ee wax, laakiin sidoo kale waxay kordhisaa xagal qoynta u dhexeeya wax iyo birta la shubay, iyo si weyn u hagaajinaysaa xannibaadda daloolada ee leben neefsashada ay sabab u tahay gelitaanka biraha la shubay.

Isticmaalka budada fiican ee Cr2O3 iyo Al2O3 heerkulka sare si loo sameeyo xalka adag ee aluminium-chromium iyo wajiga galaaska ee ku jira chromium-ka, wejiga dareeraha ah ee la sameeyay marka uu taabto dhoobada geedi-dhalaalka biraha dhalaalay wuxuu leeyahay isku-dheelitir go’an, ka -hortagga dhoobada ka samaysan birta dhalaalaysa inay saamayn ku yeelato lebenkii Neefsada ee Corrosion; Isla mar ahaantaana, waxay nuugi kartaa oksaydhka birta iyo oksaydhka magnesium ee dhoobada dhexdeeda, waxayna ku samayn kartaa laf -dhabar cufan lakabka shaqada ee leben hawo -qaadka, kaas oo hagaajinaya iska -caabbinta dhoobada ee leben hawo -qaadista.

Si kastaba ha noqotee, ka dib marka lagu daro Cr2O3 maaddada, dabka ka dib ama isticmaalka heerkulka sare, Cr3+ waxaa lagu sumeeyay Cr6+, taas oo sumeysan oo wasakheysa deegaanka. Sidaa darteed, ilaalinta tamarta iyo ilaalinta deegaanka, isticmaalka Cr2O3 waa in laga fogaadaa intii suurtogal ah, iyo in la beddelo alaabta ceyriinka ah, waxqabadka heerkulka sare iyada oo aan lagu darin Cr2O3 waxay gaari kartaa heer lagu daro Cr2O3.

2. Iska -caabbinta naxdinta kulaylka

Habka waxyeellada ugu weyn ee lebennada hawo-mareenka ah waa dhaawaca shoogga kuleylka ah. Kordhinta joogtada ah ee heerkulka garaaca, waxaa jira farqi heerkul weyn oo u dhexeeya shaqada iyo shaqada kala goynta ah ee dusha shaqada ee leben hawo -qaadka, kaas oo u baahan in maaddadu yeelato iska -caabbinta shoogga sare. Marxaladda lafdhabarta ayaa lagu soo rogaa kabka, iyo iska caabbinta naxdinta kuleylka ee lebenkii hawo-mareenka ayaa la hagaajin doonaa.

The oxide or non-oxide added in the ventilated brick forms a solid solution phase with the aggregate at high temperature, increases the high-temperature strength of the brick, improves the permeability of the brick, and resists the erosion of the ventilated brick by the molten slag in the ladle. After the high temperature heat treatment of the air-permeable brick, its performance is improved to meet its use requirements

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