1.Procedure:

　　Material—Inspection & Classification—Weighing Preparation—Melting—Initial Melting Inspection—E.F Conditioning—Casting—Inspection after Melting— Separation & Polishing—Semi-Finished Products Inspection—Quenching—Tempering—Hardness Test—Qualified Products Stock—Packing & Delivery

2.Heat Treatment:

　　Based on different chemical compositions, continuously hardening and quenching treatment can improve steel ball's hardness under certain temperatures, so as to meet different applications and working conditions.

3.Quality Inspection:

　　Hardness Test:We can make precise control on steel ball's overall hardness during processing, it make overall hardness are even, there is no more than 2 HRC difference between core and surface hardness.

Note: Above chart is hardness profile typical distribution of ZQCR12 50mm steel ball.

4.Quality Assurance:

　　The breakage rate should be less than 1% in ball mill application.

　　1. Application:MCACB series grinding ball usually apply to cement raw materials, clinker field, gold/copper/silver/molybdenum/lead-zinc/bauxite mines for ores grinding, it also suitable for ball mill in polymetallic ores grinding. The high chrome balls it will be good grinding media in thermal power's coal mill, building materials grinding. Shougang Brand HCCB has scale to over 20 provinces and export to more than 10 countries and area, earns good comments by customers.

　　2. Cast Ball Packaging Method: By flexible bag: Net Weight 1000Kg/Bag; By steel drum: Net Weight 850Kg~950Kg/drum