How to select fire magnesia balls for refractories

There are many kinds of fire-resistant magnesia balls. There are many varieties. We should choose the most suitable when we choose the refractory, but the most suitable is not necessarily the most expensive, and we can save a fee from it.

1. According to the refractoriness required for the high temperature kiln, the refractory material is selected for 1580-1770 degrees, and the refractory material is 1770-2000 degrees. The refractory material is higher than 2000 degrees.

2, according to the chemical characteristics of high temperature kiln to choose and purchase: there are three kinds of refractory materials, neutral refractories, alkaline refractories, must choose the corresponding chemical properties of refractory materials, otherwise the chemical changes will occur at high temperature, causing serious loss.

3, according to the use and purchase: different industries need to use different refractory materials, different refractory positions are different refractories, steel industry refractory materials, metallurgical nonferrous metal industry refractory materials. Fire-resistant materials for petrochemical industry. Silicate refractories for glass kilns, cement kilns, ceramic kilns, refractory materials for power plants for generating boilers, refractory materials for melting incinerators for waste incineration.

4, according to the effect of pre - purchase, in general, we require the refractory material manufacturers to provide pre - lining effect, which can calculate the specifications and quantity of the refractory material required. At the same time, when we choose to buy, we must provide refractories to the manufacturers, so that the goods can be collected according to the sample when the goods are delivered.

5, brand problems, now thousands of refractories manufacturers, there are large and small. If the refractory materials purchased for special requirements and special purposes can be found by the manufacturer of a Sino foreign joint venture or a manufacturer specializing in this special refractory, the price will be about 20% higher than that of the domestic brand. General fire-resistant materials can choose domestic brands, at the same time to see some of the manufacturer's information, for example, whether or not through ISO certification, business license and so on, can also check the Internet or to close the industry with which manufacturers of refractory materials.

6, after-sales service, to choose after-sales service outlets more close to the manufacturers, so that if the furnace after the construction of abnormal conditions, the manufacturers of technical personnel can be fast to avoid the loss expansion. And the problem of warranty. Under normal circumstances, there are any problems in the first year, and manufacturers will be guaranteed free of charge for one year.

7, to determine the purchase of the general need to pay the deposit, if it is convenient to go to the factory to see, by the way to inspect the size of the manufacturer, strength, in case of being named to cheat the deposit.