T/SJZSYYQXH JZ008-2023 Calibration Method for Low-Gentleness Testing Instrument
T/SJZSYYQXH JZ008-2023
Basic Information
Scope
Main technical content: 3 Overview: The test instrument is used for low-temperature flexibility testing of asphalt rolls. The test instrument consists of two non-rotating cylinders, a cylinder or a semi-cylinder bending axis, which can move up and down between the two cylinders. The entire device is immersed in a cooling liquid that can control the temperature within the range of (-40 to +20)°C. 4 Measuring characteristics 4.1 Mechanical parts 4.1.1 Cylinder diameter: φ(20±0.1)mm 4.1.2 Bending axis diameter: The diameter can be φ(20±0.1)mm, φ(30±0.1)mm, or φ(50±0.1)mm 4.1.3 The bending axis rises at a speed of (360±40)mm/min, and the end point of the bending axis movement is 30±1mm above the cylinder, as shown in Figure 1. 4.2 Temperature control Temperature control range: (-40 to +20)°C, with a maximum allowable error of ±0.5°C.