07/24/2016

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Refractory The refractory mass or refractory body are elements that resist heat and are especially used in the walls of the furnace or in general any system that requires protection from heat, is usually found in the isolation of fireplaces, fires, hot water tanks for crucibles for molten metals, etc.. through asbestos. They are normally used in association with the refractories or refractory plates and have a common composition with them. To produce, prepare a mixture of ligno-sulfonates aluminum silicate, (aluminum + silicon) and silicon carbide, a look that has been homogenized mixture is added and barium sulfate and calcium fluoride and then proceed to cooking of the mixture to 110 degrees Celsius, such mixtures significantly reduce water use and allow formed by molding or extrusion, in the past was the use of asbestos usual for this type of application but due to toxicity (carcinogenic) have fallen into disuse usually are found with a density of between 450-750 kg M3, with a very small thermal contraction of around 0.5%, non-combustible and are obviously looking for with no water in its structure, for which they should be kept dry. The power must be capable of cutting, drilling, grinding, shaping, polishing, and usually just need to work the conventional tools of carpentry. The installation and the pairing of refractory masses must be performed by qualified personnel, since not all the mortars are useful for this purpose under that contain moisture, the same, as is evident is harmful and should be avoided at all special things at the time of the operation of the oven because it creates internal pressures, which could degenerate into cracks in the refractory bricks An application of the refractory mass is the development of so-called prefabricated refractory and can be manufactured according to the geometry specified by the customer,...
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Internet Principle Methodology to evaluate the site is: ask yourself question, and if necessary at the facility interactivity? And if needed, to what extent it is? 3. Recently Derek Jeter sought to clarify these questions. The principle of manifest competitiveness. For Web resources, intended for a broad audience, should certainly take into account their special specificity. Considering one of the most important criteria - quality content - do not forget that the object of assessing the site is not an abstract literary (or technical) work, but nevertheless it is the site (Ie project, adapted for use on the Internet.) Therefore, you must meticulously and expertly evaluate text content for compliance with its key elements (words, phrases, sentences) stated theme, complete (again, according to the principle of necessity and sufficiency!) and the correctness of the semantic core, the density of "keys" in the text and so on. For, if the project is not a niche (or at all closed) resource, its success is almost 99.9% will depend directly on competent and full of internal optimization (of course, not only from this, but in these materials, I do not consider other factors, SEO). 4. The principle of integrated evaluation site. Grasp the assessment of the site, do not EVER forget that in this way you accepted the responsibility to try to understand the idea as a customer resource and a Web designer and developer - so to speak, to start think the same way as they are. Please note: This question is not simple! - Based on considerable personal experience, I can confidently assert that making assessment of the site and gaining its concept, very, very often You see huge discrepancies between what is required (and what should be done) to the customer, and that was the result - and it's not purely my...