Refractory Raw Materials Tapping Hole Packing
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Tapping hole packing
Product description
Tapping hole packing is electric furnace bottom of the steel wide a must material, my company research and development of electric furnace tapping hole has not rise, molten steel packing penetrates, high refractoriness, simple operation, use safety etc. Characteristics. By many domestic big and medium-sized steel enterprise use, since open rate reached 99.8% full, deeply customer high praise.
Main physical and chemical index:
Chemical index
ingredients | SiO2 Al2Q2 CaO Fe2 O2 MgO H2 O |
Index (%) | 25～35 ≤5.0 ≤5.6 2.0～8.5 53～60 ≤0.5 |
Physical properties
ingredients | Grain of degrees Let heavy Resistance to fire degrees |
Index (%) | 1～5mm ≥1.3g/cm2 ≥1700℃ |
Applicable condition
Used in electric furnace steelmaking operation.
- Q: Who knows the refractoriness of high temperature lightweight firebricks?
- Refractoriness refractory bricks with different melting points, the melting point is liquid and solid crystal phase at a temperature equilibrium. The vast majority of bricks are made of heterogeneous materials. No fixed melting point, it begins to appear to be melting and becomes complete liquid gradually, solid and liquid coexist over a wide temperature range, fusion and softening of refractory is messured by its performance at high temperature. Therefore, refractoriness is the temperature at which the multiphase reaches a certain degree of softening. Refractoriness is an important technical indicator in evaluating refractory bricks, but it can not be seen as the temperature ceiling. GB / T 7322 "Test Methods for high alumina brick refractoriness" alumina brick refractoriness test standards. refractoriness of some commonly used refractory bricks as follows: 1, clay brick 1610? 1750 ℃ ??2,silicon brick 1690? 1730 ℃ 3, crystalline silica 1730? 1770 ℃ 4, hard paste1750? 1770 ℃ 5, high alumina brickx26gt; 1770? 2000 ℃ 6, magnesite refractory bricksx26gt; 2000 ℃ 7, dolomite refractoryx26gt; 2000 ℃
- Q: Can quantitative feeder be used in refractory plant? Thank you
- Feeder experts, justice and analysis, quantitative feeder, of course, can be used in refractory plants
- Q: How long is the fire resistant limit for ultra thin fire retardant coating?
- The fire resistant limit of ultra-thin fire retardant coating is 1.5 hours, generally fire resisting time for thin fire retardant coatings does not exceed 1.5 hours. If the time exceeds 1.5 hours, thick fire resistive coating should be uesd. There is no detailed stipulation for ultra-thin fire retardant coating, and the thickness of the inside is the fire resistance limit shall reach certain time(at least). If fire resistance limit is 2.5 hours, the thickness shall be 4.9mm. If the fire resistance limit is 2 hours, the thickness is 3.5mm. If fire resistance limit is 1.5 hour, the thickness should be 1.75mm.
- Q: Development trend of refractories
- Facing the survival and development of refractory industry challenges in many aspects, serious: 1, the user industry due to the progress of science and Technology (such as iron, iron and steel industry in the direct reduction furnace, to reduce casting, slag splashing etc.), reduce refractory material consumption; 2, refractory material environmental protection and ecological requirements; 3, users of the product quality and cost requirements; 4, users risk transfer, refractory material, the design requirements of the liner construction, maintenance services, and even provide construction equipment; 5, between refractory enterprises and personnel dispute price; 6, due to the industry downturn in some countries, the decline in refractory material and the lack of education, lack of young professionals; 7, resource depletion and other raw materials.
- Q: I want to consult the fire resistant level standards of external wall thermal insulation materials.
- Fire resistant level standards of external wall thermal insulation materials: 1, The thermal insulation material that has A-class combustion performance: Spraying inorganic fiber, glass wool, foam glass, ceramic foam, rock wool, foam cement and perlite obturator, and so on. 2, The thermal insulation material that has B1 level combustion performance: Special processed extruded polystyrene board (XPS) / special processed polyurethane (PU), phenolic and polystyrene powder. 3, Thermal insulation materials that have level B2 combustion performance: Molded polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc.
- Q: What's the maximum temperature that the refractory ceramic fiber cloth can endure?
- Ceramic fiber cloth is high temperature resistant and its continous use temperature can be up to 1000℃. It has high temperature resistance, low heat conductivity, thermal shock resistance, low thermal capacity; superior insulating property at high temperature, long service life; resistance to nonferrous metals like molten aluminum and zinc erosion; low and high temperature strength; innocuity with no adverse effect on the environment; and it is easy to install.
- Q: What is fireproofing material? Are fireproof materials the same thing with thermal insulation materials and refractories?
- Insulation materials. Thermal insulation material is characterized by thermal insulation, which is one of the four traditional inorganic nonmetallic materials. Fire?retardant material is cahracterized by heat-resistant. Refractory is a kind of materials of resisit high temperature. Fireproof material, which is different from thermal insulation material and refractory, is a synthetic material with some fireproof subtrate added. It is essentially resistant to high temperature.
- Q: Who knows how many kinds of fireproof insulation materials are there in the market?
- Portland cement, insulation stone, calcium powder and platycodon grandiflorum are the main raw materials of inorganic active insulation materials. Advanced manufacturing techniques and chemical Technologies have been used to conduct many tests, thus the close-celled inorganic active insulation materials are successfully developed. Products have advantages of fire-resistance, small deformation coefficient, aging-resistance, stable performance, environmentally-friendly, and good compatibility with rendering coating and subtractive wall, security, stability, and also have a life as long as the building itself. Good fireproofness: The materials of fireproof insulation board are inorganic (cement) which has A1-level fire-resistance, are non-combustible materials, and good at resisting fire. I hope my answer can help you.
- Q: What is the offer of fire proofing thermal insulation material?
- 1. Fire proofing thermal insulation material ceramic fiber paper aluminum silicate fiber blanket/aluminum oxide fiber insulation cotton insulation pipe 15 yuan 2. 1260 ceramic fiber cotton thermal insulation panel thermal insualtion aluminum silicate aluminium oxide fireproofing fibre board 20 yuan 3. non-asbestos high temperature resistant aluminum silicate fiber insulation cotton fire-resistant material ceramic fiber cotton blanket 28 yuan The above prices are from the Internet and for your reference only. Price may vary according to specific circumstances.
- Q: What is shapeless refractory with high performance?
- The popular ones are: Non-cement fine powder bonded castable is a functional refractory castable with nano material introduced.
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Refractory Raw Materials Tapping Hole Packing
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
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