Standard of the Chromium Alloy Cast Grinding Balls in Building Materials Industry (7)

A.1 Under the following normal operating conditions, the ball broken rate and wear rate of the ball mill running for 2000h and 3000h are shown in Table A. 1.

Standard of the Chromium Alloy Cast Grinding Balls in Building Materials Industry (6)

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. 7.3 The inspection items are diameter deviation (1), shape deviation(5.2), chemical composition (5.3), surface hardness (5.4.1), appearance quality (5.7.1,5.7.2).

Standard of the Chromium Alloy Cast Grinding Balls in Building Materials Industry (5)

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.

Standard of the Chromium Alloy Cast Grinding Balls in Building Materials Industry (4)

5.1 The deviate diameter of the casting grinding balls should be accord to the requirements of the Table 1. 5.2 The shape deviation of the cast grinding ball shall be less than or equal to the diameter deviation of the cast grinding ball of the same size

Standard of the Chromium Alloy Cast Grinding Balls in Building Materials Industry (2)

This standard specifies the terms and definitions, product classification, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of cast chromium alloy grinding balls for the building materials industry. This standard is applicable to chromium alloy cast grinding balls (hereinafter referred to as cast balls) used in building materials industry, and other cast […]

Standard of the Chromium Alloy Cast Grinding Balls in Building Materials Industry (1)

This standard was revised based on JC/T 533 —1994. This standard shall replace JC/T 533-1994 since the date of the implementation.