In order to standardize the production process of magnesium spheres, realize the effective utilization of solid waste and optimize the steelmaking process of converter, the following standards are formulated according to the production situation of the main suppliers of magnesium spheres supplied by Bagang.

technical requirement

The chemical composition and physical properties of light burned magnesia ball should meet the requirements of the following table:

 SiO2 MgO Al2O3 C+S+P 水分 ≤8.0 ≥45.00 ～35 

Do not ask for less than 1

Particle size requirement: 20-50mm, in which the powder ratio less than 5mm is not more than 5%; compressive strength: > 980KN/piece, field measurement is based on free falling from 3m height to cement ground without fragmentation. 3.3 No more than 500 tons per batch of products must be sampled and tested once; 3.4 No less than 15 kg per batch of samples should be sampled equally from each sample bag.

The quality inspection and acceptance of light burned magnesia balls should comply with the requirements of YB/T 5142.

Light burnt magnesia balls are packed in polypropylene woven bags of 1 ton each, ensuring that the contents are not exposed and leaked, and indicating the name of the product and the name of the supplier; each batch must be accompanied by a quality certificate.

The main basis for making the above standards is as follows.

1) technical standard and purchasing price of brother enterprise

2) function and location of magnesium spheres

3) the quality level that the main manufacturers can achieve.