Overview
PY-H602B automatic Burst Strength tester (paper type) is a professional testing equipment independently developed by PUYUN for measuring the Burst Strength performance of paper and Cardboard, Corrugated Board and carton. The instrument supports kpa, gf/cm2, Lb/in2 and other test units. It is suitable for cardboard, Kraft Paper, cardboard, corrugated paper, gray board and other materials. It is widely used in Cardboard manufacturers, carton manufacturers, carton users and scientific research institutions.
Features
1. Measurement range: 50~ 1600kpa, resolution up to 0.01kpa, Precision ≤ +/- 0.5%.
2. Drive structure optimization: all-steel chain drive is adopted to prevent compression deviation and improve detection stability and life.
3. Advanced deformation monitoring: equipped with a chord length of 41mm three-dimensional semi-circular full-window observation window, with a deformation error of less than or equal to 1mm.
4. Intelligent Control system: Integrated intelligent control pressure relief system, clamping force range of 100~ 1200Kpa, support 360 ° free orientation positioning test head.
5. Convenient display and output: 3.2-inch LCD screen to display data in real time, built-in modular integrated thermal printer.
6. Flexible unit conversion: supports a variety of unit conversions such as Kg/cm2, kpa, lbf/in2, etc.
Principle
The instrument is pumped through hydraulic fluid at a steady rate, so that the sample and the film are freely raised together until the sample breaks, and the MAX Maximum of the applied hydraulic pressure is recorded as the Burst Strength value. The film resistance is (30 +/- 5) kPa at the height of the bulge (9 +/- 0.2) mm, and the oil feeding speed is controlled at 95 +/- 5mL/min to ensure a stable and reliable test process.
Applications
Cardboard manufacturers, carton manufacturers, carton users, scientific research institutions
Standards
GB/T 454、ISO 2758、QB/T 1057
Steps
1. Select no less than 10 groups of samples from the same batch of samples, and each of the front and back sides is attached to the film for determination.
2. Use a standard cutter or cutting machine to cut the sample, with a size of ≥ 70mm × 70mm, or directly test the entire sample.
3. Open the sample chuck, clamp the sample in the middle, and start the instrument to increase the pressure at a rate of (170 +/- 15) ml/min.
4. Hydraulic fluid is pumped to raise the sample and film until it breaks, and the maximum hydraulic value is recorded as Burst Strength.
5. Calculate the burst resistance index X = P/g, where P is the average Burst Strength (kPa), g is the Cardboard Basis Weight (g/m2), and the result retains three significant digits.
Notice
• The sampling position must be taken in the middle without damage.
• The concentricity of the upper and lower plates should be less than or equal to 0.25mm, and the clamping force should be controlled within the range of 100 to 1200Kpa.
• Operating Ambient Temperature should be maintained at (20 +/- 10) ° C with Humidity < 85%.
• The gas source pressure needs to be provided by the customer, and the range is 0.4-0 MPa.
• Ensure that the film resistance meets the (30 +/- 5) kPa standard and the raised height is (9 +/- 0.2) mm.
