where to buy silicon cardbide refrctory is acidic or basic

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Silicon carbide is smelted in electric furnace with the raw materials of quartz sand and petroleum coke. Its chemical performance is stable, thermal conductivity is high, thermal expansion coefficient is small,wear resistance performance is good, the hardness is high

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Basic refractory magnesia, calcium oxide as the main component, is used magnesia brick. Magnesium containing more than 80% to 85% of the brick, alkaline slag and iron slag has good resistance, high refractoriness than clay and silica brick.

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A high purity Al203 crucible which has good resistance to both acidic and basic slags. It is used for a wide range of alloys and stainless steels in vacuum and air melting appliions. Maximum service temperature 1700 o C.

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Semi-Silica Refractories generally use silica as the main component and a glassy matrix as a binder. The silica content is about 75% to 93%. The raw materials are silicon-containing clay, sand and refractory mortar. According to the Kiln Refractories Blog, it can resist slag erosion and is …

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Acid concrete is a kind of refractory castable that can resist the acidic medium at 800-1200 . It is made of acid and fire proof aggregates, about 60%, powders about 30%, sodium silie solution about 13%-16% with density of 1.38 1.42 g/cm3, plus sodium fluorosilie as hardening agent.

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explain refractory materials, refractory materials used are of three types, acid refractories : silica, silicious sand stones, quartz, are the examples, basic

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Wear Resistant Silicon Carbide Refractory Castable Cement for Kiln US $ 210-760 / Ton Min. Order:5 Tons Refractoriness ( ): 1770< Refractoriness< 2000

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Silicon Carbide (oxygen-free settings) Graphite (oxygen-free settings) Tungsten Carbide Boron Nitrate Classifiion of Refractory Products Depending on the types of materials used, refractory products typically fall into three classifiions.

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These are the materials are attacked neither by acids nor by bases such materials are also used to replace basic refractories where the corrosive action is strong. Examples: Various forms of carbon like graphite, charcoals and coke.

Refractoris - Ceramics Basic Knowledge

Refractory materials must be chemically and physically stable at high temperatures. Depending on the operating environment, they need to be resistant to thermal shock, be chemically inert, and/or have specific ranges of thermal conductivity and of the coefficient of thermal expansion.The oxides of aluminium (), silicon and magnesium are the most important materials used in the manufacturing of

A Quick Guide to Refractory Materials - Nische Solutions

Acidic Refractories: Here, we’re discussing refractory materials based on acidic materials such as Aluminum oxide (alumina) and Silicon oxide (silica). Because they’re already acidic, they’re resistant to acidity, but if they’re exposed to an alkali or base, they are easily degraded.

6 Guidelines to Select Right Refractory for your Furnace.

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Silicon carbide - Wikipedia

Silicon carbide (SiC), also known as carborundum / k ɑːr b ə ˈ r ʌ n d əm /, is a semiconductor containing silicon and carbon.It occurs in nature as the extremely rare mineral moissanite.Synthetic SiC powder has been mass-produced since 1893 for use as an abrasive..

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to produce silicon carbide refractories, with imported silicon carbide grains and indi-genous bonding materials. In the lead smelting and refining industry moderately severe demands on refractory linings are encountered only in furnaces for

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Silicon carbide can be obtained in pure form by after-treatment of the silicon carbide in a carbon matrix by passive oxidation by means of oxygen, air and/or NO x.H 2 …

Crucibles, Transfer Ladles and Fired Refractory Shapes

For crucible, transfer ladles and fired refractory shape material selection, Magna Industrials Ltd offer the following information as a general guide to obtain optimum performance. Each material is designed specially for our customer''s demands; if a new mix or material is preferred, Magna will be pleased to work with our customers to achieve the best result for any appliion.