Dia25mm – 40mm screw rolling steel grinding balls production line is used to produce steel balls 25mm, 30mm, 35mm and 40mm with different composition. The surface hardness of the produced balls can achieve over 60 degrees. Widely used in mines, power station and construction industry. Produced steel balls has no de-shaped, no chamfer, and good quality.
View More →In materials science, quenching is the rapid cooling of a workpiece in water, oil, or air to obtain certain material properties. For oil quenching furnace, it contents the process of heating and quenching. For casting grinding balls, quenching process can be oil quenching for common high chrome balls, air quenching for super high chrome alloyed grinding balls; and for individual alloyed steel balls, water polymer is the best quenching media.
View More →5.TECHNICAL REQUIREMENTS 5.1 The deviate diameter of the casting grinding balls equipment should be accord to the requirements of the Table 1.
View More →6.1 For the provisions of 5.1, 5.2 and 5.7.2, the measuring instrument with a precision not less than 0.1mm shall be used for the measurement, and the parts where surface defects may cause measurement errors shall be avoided during the measurement.
View More →6.TESTING METHOD 6.1 For the provisions of 5.1, 5.2 and 5.7.2, the measuring instrument with a precision not less than 0.1mm shall be used for the measurement, and the parts where surface defects may cause measurement errors shall be avoided during the measurement.
View More →7.INSPECTION PROVISION 7.1 The ball shall be inspected by the quality inspection department of the manufacturer. 7.2 Inspection classification: inspection is divided into factory inspection and type inspection.
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