Magnesia-carbon brick manufacturers analyze the classification of refractory products

The classification of refractory products is generally divided into standard, general, special, special and other types according to the current standards: carbon-free bricks

(1) Standard type. Generally, straight bricks with dimensions of 230mm X 114mm X 65mm are called standard bricks.

(2) General type. Meet the conditions: weight 2-5kg; Thickness size 55-75mm; Not more than 4 measuring sticks; The size ratio is not greater than 4; Refractory products without concave corners (including arc concave corners), grooves, tongues, holes, holes or arcs are general type products.

(3) Abnormity

A, clay, high aluminum shaped products. Where the proportion of the outline size is within the range of 1:6, and has no more than 2 concave angles (including arc concave angles), or has a 50°~75° acute Angle, or with no more than 4 grooves, the weight of 2~15㎏ clay bricks and 2~18㎏ of high aluminum products, are called special-shaped products.

B, silicon shaped products. Where the proportion of outline size is within the range of 1:5, with no more than 1 concave Angle (including arc concave Angle), or with a 50°~75° acute Angle, or with no more than 2 grooves, its weight of 2~12㎏ silicon products, are called silicon shaped products.

C, magnesium or magnesium aluminum shaped products. All products not included in this series of general products are classified as special-shaped products.

(4) Special type

A, clay, high aluminum special products. Where the proportion of the outline size is within the range of 1:8, and has no more than 4 concave angles (including arc concave angles), or has a 50°~30° acute Angle, or with no more than 8 grooves, or has no more than 1 hole, the weight of 1.5~30㎏ of clay products and 1.5~35㎏ of high aluminum products, are called special products.

B, siliceous special products. Where the proportion of the outline size is within the range of 1:6, and has no more than 4 concave angles (including arc concave angles), or has a 50°~30° acute Angle, or has no more than 4 grooves, or has no more than 1 hole, its weight of 1.5~25㎏ silicon products, are called special products.

C, magnesium special products. Where the proportion of the overall dimensions is within the range of 1:8, and has no more than 4 concave angles (including arc concave angles), or has an acute Angle of 30°~50°, or has no more than 4 grooves, or has no more than 3 holes, its weight is 3~^s+