Sic Refractory is silica core

Sic Refractory as a core raw material silicon feedstock plays an irreplaceable role in the production and supply base silicon feedstock. It has the H&X white fused alumina physical and chemical properties, making it occupies a pivotal in aviation, aerospace, electronics, machinery, and the rapid development of today's IT industry position, especially its intrinsic molecular chain structure, crystal shape and lattice variation, it has a high temperature, thermal expansion coefficient is small, highly insulated, corrosion-resistant, the piezoelectric effect, resonance effect and its unique H&X silicon carbide grit properties, making it plays an increasingly important role in many high-tech products, such as, IT industry's core technology products - computer chips, fiber optics, electronics industry resonator, new electric light, highly insulating sealing materials, aerospace equipment, military technology products, special optical glass, chemical analysis equipment, etc., from do not open these basic materials.

Brown Corundum basic introduction

After white fused alumina powder as an industrial raw material, in the arc melting temperature above H&X buy brown fused alumina degrees cooling is made by crushing plastic, magnetic separation to iron, screening into a variety of particle size, its dense texture, high hardness, sharp grain formation shaped, white fused alumina for the manufacture of ceramics, resin bonded abrasives and grinding, polishing, sandblasting, precision casting (casting special corundum), etc., can also be used to manufacture advanced refractories, codenamed "WA" on internationally accepted standards, national consistent standards, most for export, there is a certain amount of supply H&X Alumina Grinding Media users. Product size in accordance with international standards and national standards of production, processing granularity according to user requirements. Universal size No. F4 ~ F220, its chemical composition varies depending on grain size. Prominent feature is the small crystal size, impact resistance, since the mill processed if broken, the particles are mostly spherical particles, the surface of the dry-cleaning, easy binding agent.

The main raw material of silicon carbide abrasive

H&X Aluminium hydroxide powder is black quartz sand, petroleum coke as the main raw materials, smelting electric arc furnace. Its hardness between corundum and diamond, corundum higher mechanical strength, brittle and sharp. It has a certain electrical conductivity and thermal conductivity. Black silicon carbide Usage: abrasives, metallurgical deoxidizer, high temperature materials, semiconductors, carbon fiber (1) as an abrasive, can be used for abrasives, such as grinding wheel, Whetstone, grinding, sand tile and so on. (2) as a metallurgical deoxidizer and high temperature materials. Silicon carbide has four major application areas, namely: functional ceramics, advanced H&X Sic Refractory, abrasives and metallurgical materials. (3) high-purity single crystal can be used for the manufacture of semiconductor manufacturing silicon carbide fibers. (4) silicon carbide is very hard and has excellent thermal conductivity properties, is a semiconductor, resistant to oxidation at high temperatures.

Fused quartz manufacturer details

Fused silica sand Which H&X pink fused alumina from the price and quality
Each company trading fused silica sand, will have a common point, that is the price of fused silica sand, fused silica sand price is the prime consideration customer choice, and our factory is located in the resource-rich quartz sand birthplace of Jiangsu Lianyungang, which is why I plant a big advantage in doing quality assurance while melting quartz sand prices in the peer also has a large advantage. The production of quartz sand, fused silica sand, silica powder, is signed by the National Building Materials Bureau for H&X silicon carbide micropowder products. With advanced processing equipment and production technology of quartz, relying on domestic resources, abundant high-quality quartz, following today's ever-changing market, according to market demand, developed a variety of high quality products.

Furnace with rails and monolithic refractories

Unshaped refractories having a particle size gradation of the aggregate and the Sic Refractory powder, a binder, a refractory mixture of additives, also known as bulk refractories. Equipment for thermal lining, without firing process, the direct use baking. With firebrick, compared with a simple process (due to eliminating the firing process), energy conservation, low cost, ease of construction and other features of mechanization. Use of thermal equipment on some better results than firebrick.
Currently, there is no domestic water-cooled furnace uses a rolling silicon carbide corundum a Calcium silicon, rolling mill furnace taphole platform uses a high alumina ramming mixes. A silicon carbide and high alumina corundum ramming material at high temperature heating of billets contain more silica. Slab surface iron oxide and silica will form the furnace temperature below the melting point of iron olivine, resulting in poor wear resistance of high temperature refractory, low-life, easy slag within the furnace.

Refractory one project won the national invention patents

Abstract: Steel Refractories Co., Ltd. "back seam aluminum powder reduction cell sidewall filled with gravity casting material" project by the State Intellectual Property Office patent licensing. This invention proposes a design specifically for aluminum cell, the cell is filled between the shell and the side wall slot gap using gravity casting material. The monolithic refractories can improve electrolytic tank and the side wall of life, not high-temperature firing, and can achieve rapid casting, Sic Refractory field is energy efficient environmentally friendly materials.
Category Industrial Technology> Chemical Industry> Portland Industrial> Industrial Refractories> Refractory Products> unshaped refractories
Keyword artesian invention patents monolithic refractories castable SIPO electrolytic cell design channel

Impact of nanomaterials on refractories

Reduce the cost of production of clean steel mills continue to pursue each . Steelmaking Sic Refractory plays a key role in this regard , therefore , refractory facing greater challenges , in order to resist the harsh operating conditions , such as various types of high-speed steel casting , cold casting , etc., need to design a suitable refractory . Focus of this article is the key issue refractory products , such as increased erosion resistance Cypriot club head and submerged nozzle slag line , as well as to improve the high temperature strength of the product and so on . By introducing different proportions in the form of nano- oxide and non-oxide materials research special organic binding agent , developed the desired product. Through research, the final design of the casting process to match the low-cost products .
Discusses the specific requirements of calcium silicon refractory clay construction performance , sample tests conducted in accordance with the existing national technical standards, with a level of granularity and performance construction materials to give the agents studied. Ultimately concluded that a reasonable level of granularity is the oven with excellent access to basic construction performance with siliceous fireclay . You must add water-soluble organic and inorganic additives in combination , in order to make good fire clay construction performance .

The comparison of two kinds of rare earths

1, re - Alumina Oxides alloy in the middle
Single rare earth metal chemical is high, easy oxidation burning loss during smelting, storage and transportation is not very convenient, cost is high, and high melting point, density, not easy to add to the aluminum. In most cases, therefore, are among the prefabrication of the rare earth - aluminum alloy, not only can reduce the oxidation burning loss, reduce the cost, and convenient transport. Join, simple and safe operation, and components are easy to control, available composition is stable, reliable quality of the alloy.
2, rare earth application in high purity aluminum powder capacitor
Containing rare earth high purity aluminum special aluminum foil, is an ideal new material in the low production of electrolytic capacitors. Some capacitor factory that, after adding trace rare earth in high purity aluminum, can dramatically increase the corrosion of aluminum electrolytic capacitor anode aluminum foil coefficient K, and the strength, capacitance is increased significantly. Made significantly smaller capacitor, the material has been batch used in some of the capacitor, and obtained a certain effect. But the effect mechanism of rare earth in them, have different opinions, is carrying out in-depth research.

Rare earth removal of impurities and on the influence of the inclusions

Distribution in aluminum and its alloy matrix and grain boundary compounds for all kinds of intermetallic compound and the oxide and aluminum oxide. The composition, morphology, distribution and quantity of these compounds on the performance of the aluminum and its alloys, especially the plastic processing and performance has a significant influence. Inclusion of aluminum powder and its alloy owner if Al2O3 etc. Nonmetal inclusion, its existence not only reduce the processing performance and mechanical properties of alloy, and worsen the casting performance. When pure aluminium (as-cast, variable form) after adding 0.2% of rare earth, the distribution of the original intracrystalline bulky blocks disappear, spherical rare earth phase formation, grain boundary strips and fragmental compounds decreased significantly, the point chain compound forming, plastic good uniform organization. And found that after adding 0.2% rare earth alloy, the original is distributed in the intracrystalline glomeration of rough patches, and in the uniform distribution of globular phase is formed on the substrate, while eliminating the boundary brittle fragmental and strip compounds, forming small point chain distribution of plastic compounds, and lined up along the deformation direction. To join before and after the rare earth Alumina Oxide and its alloy matrix, the grain boundary in the compound, intracrystalline bulky compounds and globular compounds such as phase composition were determined. Contrast found that after joining the rare earth, which makes the impurity in the aluminum and its alloys, such as iron and other elements, to high rare-earth poly globular phase, so that the final solidification grain boundary of impurity element is greatly reduced, purify grain boundary, the grain boundary in high-speed rail brittle phase reduction, grain boundary strength increased, the plastic improvement; And grain boundary distribution point chain compounds as low iron, the composition of rare earth phase, is close to the aluminum substrate of plastic compounds, particularly in the rare earth alloy spherical phases partial quantity is relatively pure aluminium cuhk, so its distribution in aluminum alloy grain boundary minimal, so the boundary of aluminum alloy is more thin, more pure than pure aluminium.

Brown fused alumina, alumina porcelain, high-frequency porcelain, what material is used for grinding the? And other?

Brown fused <a href="https://www.facebook.com/pages/White-fused-alumina/151832528325664">White fused alumina</a>is mainly used in: 1: abrasives 2:3: refractory sandblasting 4: emery wear-resisting floor 5: precision casting mould making.<br />Dongguan  widely suggested is a dedicated to promoting new environmental  protection polishing equipment, grinding materials, additives, such as  hundreds of kinds of product research and development of high and new  technology enterprise, the high frequency porcelain products used in  various types of high-<a href="http://www.hnhxgk.com/key-sic-refractory-240/">Sic Refractory</a>insulator,  porcelain dial section switch axis, porcelain bushing, resistance  matrix and containment shell electron yuan, device, it has high thermal  insulation, good chemical stability and good compressive strength  etc.Grinding stone is indispensable in the process of grinding and  polishing metal processing material. With centrifugal, vibration, eddy  current, rotary, box-type grinding machine. To metal burr, flash, scale,  rusty spot, inverted, rough grind cutting edges and corners

Fused silica refractory

Fused silica refractories and technical equipment for its manufacturing  process compared to other refractory industry is relatively simple, and  compare its performance and relative location, and the cost is low, and  it could get a lot of applications, since we started late in our  manufacturing processes and equipment Western countries is less than  perfect with industry manufacturers, compared with foreign refractory  Sic Refractoryindicators and the results of not less than the level of  similar products, but our products due to processing equipment is not  complete, in appearance, there is a large gap with foreign products,  select performance processing equipment, improve the appearance of the  product, and should be not only external beauty but also inner beauty so  that product quality to the next level.

Types of high alumina refractories

Ordinary Alumina Oxide bricks: the main mineral composition of alumina bricks mullite, corundum and glass phase. With products in the aluminum oxide content.Increases, mullite and corundum phases increases the number, a corresponding reduction in the glass phase, products increase as refractoriness and high temperature performance
Modified alumina bricks: including high load soft high alumina bricks, high alumina bricks micro-expansion, low creep high alumina bricks, high alumina brick phosphate-binding.

What corundum and corundum big difference

First, brown fused alumina and white fused alumina abrasives are used can be done. Corundum variety of colors, because it contains ions of different colors show different colors according to the color into brown fused alumina, white fused alumina, black corundum and so on.
Corundum are colorless, white, yellow (pigment ion Ni, Cr), yellow (pigment ion Ni), red (pigment ion Cr), and blue (pigment ion Ti, Fe), green (pigment ion Co, Ni, V), purple (Ti, Fe, Cr), brown, black (pigment ion Fe, Fe), incandescent violet, purple under fluorescent effect (pigment ion V).
In addition to color and itself contains pigment ion differences, corundum and corundum physicochemical characteristics and intended use also differ greatly.White fused alumina is high-quality aluminum oxide powder as raw material, corundum crystals formed by fused refined, high purity, good self-sharpening, acid corrosion, high temperature, thermal properties and stability. Slightly higher than corundum corundum hardness, toughness slightly lower, high purity, good self-sharpening, grinding ability, heat a small, high efficiency, acid and alkali resistance, high temperature resistance and good thermal stability. Made with corundum abrasive grain of sand, suitable for grinding high carbon steel, high speed steel and stainless steel fine-grained abrasive corundum can also be used for precision casting and high-grade refractory.
Corundum of sand :0-1mm 1-3mm 3-5mm 5-8mm white corundum Physical indicators: Al2O3 ≥ 99% Na2O ≤ 0.5% CaO ≤ 0.4% ≤ 0.003% magnetic material
Corundum is bauxite, anthracite, iron as the main raw material in electric arc furnace at high temperature smelting, brown color, good toughness, hardness 1800-2200Kg/mm2, bulk density ≥ 3.85g/cm3, resistance high temperature, high refractoriness 1850 ℃, do refractories, also used as an abrasive.