The different refractory brick manufacturers are use different raw materials and production technologies, and the quality of the refractory bricks produced will also be different. How to quickly distinguish the quality and technology of refractory bricks not only can save factory costs but also can improve the using life of kilns.
An excellent buyer or salesman can identify the good and bad of high-alumina refractory bricks only with more than ten years of "experience". So how exactly do they do it? In this issue, Zhengzhou Shennan Refractory Co., Ltd. will use practical experience to discuss with you how to identify the quality of a high-alumina brick with eyes.
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1. Check the appearance color and appearance smoothness
When get a refractory brick, we first look at its appearance color and appearance smoothness.
The uniformity of the appearance and color of the refractory bricks shows whether the raw materials are evenly stirred during the production of the refractory bricks, and the uneven distribution of the materials will cause uneven distribution of the strength of the refractory bricks, thereby reducing the overall strength and service life of the refractory bricks;
If the quality of the refractory bricks is not good, the surface smoothness of the bricks will be very poor, so the strength of the refractory bricks will naturally not work.
2. Surface impurities
In high-alumina bricks, we often see some black spots on the surface. These are impurities in the raw materials. In theory, the fewer impurities, the better. Since these impurities are mostly iron oxides, they are easily removed in the high temperature environment of the kiln. It is reduced to molten iron and flows out, causing damage to the refractory brick, which then affects the service life of the refractory brick. Therefore, the quality of high-alumina bricks with too many external impurities is not good.
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As an industrial product, the quality of refractory bricks directly affects the production safety and production costs of enterprises. Incomplete refractory bricks will not only bring various repair costs to production, increase production costs, but also increase unpredictable security risks when constructing and producing . It can be seen that it is very important to quickly identify the quality of refractory bricks and find a reliable refractory brick manufacturer.
Zhengzhou Shennan Refractory Co., Ltd. are specializes in the production and sales of refractory materials. We have more than 36 years of experience in this field, can provide best quality products and services for you. If there have any demands, please don’t hesitate contact with us.
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+86-15238007351 |
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+86-371-86039318 |
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annie@snrefractory.com |
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www.snrefractory.com |
