Overview
HBO LD-J hardness gauge is a special test stand for Dial D-type Shore Shore Durometer test. It adopts a tempered Glass platform and has the advantages of not easy to rusting and high Hardness. It can be used without a special Hardness block to improve the test Stability and accuracy.
Features
1. Glass workbench is not easy to abrasion, rust-proof and smoother than metal platform for long-term use
2. The level of the working platform is adjustable, and the hardness gauge is adjusted to the same level to improve the Test accuracy
3. Accurate weight counterweight
Principle
By adjusting the height of the cross arm and the level of the platform, the pressure foot of the Shore Shore Durometer is completely in contact with the sample under the action of constant weight gravity, and the value displayed by the hardness gauge is read within 1 second as the Hardness value of the tested sample.
Standards
JB/T6148-2017、GBT531.1-2008/ISO7619-1：2004
Steps
1. Place the specimen on a circular platform and release the star handle on the cross arm
2. Adjust the height of the cross arm to the bottom surface of the Shore Shore Durometer, about 5mm away from the measured surface of the sample
3. Tighten the star handle on the wishbone
4. Press down the handle so that the Shore Shore Durometer is in full contact with the sample under the action of fixed weight gravity. Readings within 1 second
5. Test about 5 times at different positions where the measuring points are at least 6mm apart to take the average value
Notice
• The sample needs to be flat, not less than 6mm thick, and have sufficient area
• The contact position between the presser foot and the sample is not less than 12mm from the edge of the sample
• Do not use too much force when tightening the hardness gauge, otherwise it will damage the hardness gauge
• If the displayed value cannot be reached after multiple adjustments, the hardness gauge or test rack cannot be used
