T/HBJLXH 007-2023 Active Group standards

\nT/HBJLXH 007-2023 Calibration Method for Mortar Mixers

T/HBJLXH 007-2023

Publish Date: 2023-02-08 Implement Date: 2023-03-07 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/HBJLXH 007-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Integrated Metrology and Measurement

Publish Date: 2023-02-08

Implement Date: 2023-03-07

Scope

Main technical content: 4. Measurement characteristics - Stirring blade rotation speed: (80±4) r/min - Stirring pot rotation speed: (60±2) r/min - Gap between stirring blades and stirring pot/pot wall: (2±0.5) mm - Stirring pot inner diameter: (380±2) mm - Stirring pot depth: (250±2) mm - Stirring time: ≥2 min, with a tolerance of 1 s 7. Calibration items and methods 7.1 Appearance - Inspect the mortar mixer for appearance in accordance with the requirements of Measurement Performance in Section 5.2. 7.2 Stirring blade and stirring pot rotation speed - Use a tachometer to directly measure the rotation speeds of the stirring blades and stirring pot. Align the tachometer's emitted light with the reflective film and record the three measurement data. Take the average value as the measurement result. 7.3 Stirring time - Turn on the instrument and press the stopwatch simultaneously. Record the display value during the 2-minute period. Repeat the measurement three times and take the average value as the measurement result. 7.4 Gap between stirring blades and stirring pot bottom/pot wall - Turn off the power, manually rotate the motor fan to position the blade plane perpendicular to the pot wall. At three symmetrically located positions, use dedicated gauge blocks to calibrate the gap between the blade and the pot bottom/wall. Take the average value of three measurements as the measurement result. 7.5 Stirring pot inner diameter - Use a steel ruler to measure the outer diameter along the axis direction and a gauge gauge to measure the tube thickness. Calculate the inner diameter (the outer diameter minus the wall thickness equals the inner diameter). Measure three times and take the average value as the measurement result. 7.6 Stirring pot depth - Use a steel ruler and straightedge to measure the distance from the pot bottom to the pot rim plane at different locations. Repeat three times and take the average value as the measurement