Large refractory supply companies have little interest in providing concrete, and small businesses have great difficulty in providing the complementary service that requires a refractory concrete.
The profound technological change that marked the transition from wet kilns to dry kilns present in the process of manufacture of clinker (cement base component) caused a significant ups and downs in the industry refractory. The structural simplicity of the old wet kilns allowed easily clothe brick, which does not happen with the current, where the metal-mechanical complex structure makes the work of forming refractory coating on an arduous task, yet expensive, very expensive, the complexity of the work we must add the cost of the material is buoyed by the large number of different preform so varied that requires structure and limited runs of each of the preforms. Forming refractory industry (brick) operates as an oligopoly only 4-5 companies share the world market, the emergence of refractory concrete has been a blow for all of them as the concrete is much better suited to the characteristics of new furnace, yet the foundation of its business continues to be brick, where its position is dominant and prefer to concentrate their efforts in this sector, that after all is the best known, some of them have nearly 80 years in business.
Currently all repairs are made using refractory concrete, even where the original design with brick for repairs shall be replaced by concrete. New plants in its design include castables in much of the structure, saving the brick for easier application areas or areas where you can install concrete. Case of cement in rotary tube furnace for example. Engineering firms oven manufacturers have been reluctant until relatively recently introduced in their original designs concrete. They have been obliged to include in their designs by the pressure that customers themselves have built, to the numerous advantages to the unshaped refractories are formed on. Basically implementation time and cost much lower, in addition to other benefits such as improved performance for as which areas, and above all the infinite variety of forms that can be given as opposed to brick is limited by the preform. Nevertheless, major manufacturers Refratecknic, RHI, etc ... continue to maintain as your business base brick. Is a product that will not disappear, its market position is absolute and although they have seen in recent years become more concrete was installed at the expense of brick is also true that the construction of new plants in developing countries has enabled them to maintain and even increase sales volume. For all these reasons these big companies as the unshaped refractory work as a complementary product to keep potential projects. But not one of their priorities.
Small businesses could focus on making concrete, but they do not, contrary to all the daily increase range of products, but not to gain market share or compete with the big-thing that is impossible. But to fill gaps in their concrete that usually have very low yields. Sometimes the product itself and others by the little attention devoted to the application, the problem is that the refractory concrete requires an application process that most often remains in the hands of companies who handle and applicator if it were conventional concrete, the figure of supervisor is crucial in this business. 50% of the success of a concrete depends on external factors to the quality. It is at this point that small businesses fail, first because pay any attention to the quality of supervision starting at the low professional profile of staff supervision, that when there supervisor, because most of the time the figure of the supervisor is a customer demand for previous bad experiences, it should be note that the monitoring and supervision of the product involves significant costs that small businesses have many difficulties to pass it on to their customers.
Concrete good but there are many teams that advise none.
Currently no company big or small has a monitoring team sufficiently prepared to enter a plant and manage the implementation of its materials according to the specific characteristics of each product. The companies that own teams have application to monetize all types of orders accepted and are forced to incorporate people who are very versatile, but very little specialized opposite of what this type of work required. Large companies have supervisors, but basically specialized in the application of brick, which is a very complex and delicate, if a project get put brick and concrete the same supervisor is responsible for everything. And most of the time the concrete is which takes the least time commitment, because the concrete harm than good can be implemented without the presence of the supervisor in the brick does not change.
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| Without this spoon would melt refractory |
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