BQM
BQM is a robust, portable instrument for determining Corrugated Board Medium Equivalent Shear Stiffness. Using Frequency Resonance response technology, the measure has a direct relationship with corrugated board strength.
It is important to quantify the structural effects of corrugated medium after the board material is converted.
BQM was developed to measure the end results of the shearing effects which occur on the corrugated medium during a converting process. The portable BQM device measures equivalent shear stiffness which has a direct relation to board structural strength.
BQM uses a Frequency Resonance response technology to scan the flute between the walls of the carton board. The strength of the corrugated box to withstand a vertical load depends greatly on the strength of the flutes.
The damage which occurs to the flutes during production is rarely seen but critical to box performance. Until now, this was a tedious and time consuming measurement.
Operation
The BQM is very easy to use and requires minimal sample preparation. During a test the sample is suspended over a 100 mm (3.9 in) gap. The operator selects the board flute type. The sensor unit is placed over the test area and the start key is depressed.
The BQM takes a measurement and the test results are clearly displayed on the LCD screen within in 3-6 seconds.
Features
- Measures Corrugated Board Medium Equivalent Shear Stiffness
- Robust, Low-cost measurement device
- Non-destructive Test Measurement
- Portable- can be used in the lab or production floor
- Fast Measurement- 4 second test time
- Battery Operation – unit powered by NiMH rechargeable batteries
- Minimal Sample Preparation- sample greater than 4.7 in (120 mm)
- LCD Display of Equivalent Shear Stiffness Result
Importance
The output data from BQM provides the user accurate information as to both the suitability of the medium board quality for its intended purpose and the variation occurring in board quality.
Corrugate carton manufacturers frequently incur damage to the corrugate board during the printing process in order to achieve sharp definition. Such damage may pass undetected and result in seriously weakened cartons being packed and shipped with expensive consequences resulting in product damage.
Specifactions
- Results
- Equivalent Shear Stiffness Kn/m
- Repeatability:+/- 0.2 kN/m
- Flute Type: B or C
- Test Time: 4 seconds
- Digital Display: LCD
- Output: RS232-2400 baud rate
Environmental Conditions
- Operating Temperature: 5°- 40 °C
- Storage Temperature: 10° – 60 °C
- Humidity: 10 – 80 % RH
Instrument size
- Depth: 220 mm (8.6 in)
- Height: 60 mm (2.3 in)
- Width: 105 mm (4.1 in)
- Weight: 1.2 kg (2.64 lb)
Connections
- Battery operated: NiMH