Paper Bursting Strength Instrument

Paper Bursting Strength Instrument

Paper Bursting Strength Instrument

Author: QINSUN Date: May 17^th, 2016

Bursting strength definition is by the hydraulic system pressure, the maximum pressure when the elastic film which burst patterns of circular area.

Bursting strength definition: Divided by its quantitative burst degrees

Bursting strength instrument is used for detection of paper, cardboard, corrugated board burst degrees and special testing instruments of production, the current widely used instrument well for Mullen burst degrees (Mullen) burst instrument.

Bursting is the bursting strength of paper, which represents the total strength of the paper and uniformity. It can be said bursting strength of the paper which is determined by the sum of uniformity, depending on its elongation, and certain features of the sheet structures. Between nature and its strong anti-mechanical properties have a certain relationship, but also influenced by paper elongation, so it also reflected the zone toughness paper

Average tension resistance is a certain width of the vertical and horizontal, vertical and horizontal difference can be quite large, and the intensity of burst degrees is a certain area combined. Constitute the main factors of the mechanical strength, is the binding force and the average length of the fiber. Burst degrees is the tensile strength and elongation of the composite function, its stress is mostly in the paper to burst, across the sheet of a kind of tension, which is formed by the pressure difference due to deformation roughly equal in both directions, creating uneven stresses in the paper, and the general rupture pattern become a longitudinal vertical cracks with paper. This phenomenon is due to the paper longitudinal elongation is small, the rubber membrane pluck up, for the longitudinal stress in tension. Burst degrees directly to sack craft paper, wrapping paper and carton board USES directly. The paper in the process of using are burst degrees similar stress during the process of inspection, however, for most of the paper, burst, there is no direct link between paper and paper USES.

Bursting strength instrument working principle,

According to PASCAL's law, pressure in an airtight fluid can make liquid transmission in all directions according to the size of the original. In instrument seal oil cylinder and the pressure of the paper should the lumen, filled with methyl silicone oil as pressure transmission medium, when moving at a constant speed motor drives the piston, film pressure and raised by silicone oil; Clamping, above the film being chuck fixed sample, up and down the uniform stress, until the broken sample. Processing chip lock the maximum stress value, through the LCD panel shows that the pressure value, the pressure value is the resistance of the sample broken degrees

So how to instrument calibration burst degrees, in fact, relevant national verification regulation, light industry standard, national standard of GB/T1539 calibration method, measurement accuracy has been specified by no less than 0.1% of the standard pressure gauge, to check the error value, if not according to the method of calibration is not in conformity with the provisions invalid proofreading (such as the current market circulation of so-called "aluminum foil calibration", this kind of aluminum foil can only be used as a fixed value of the sample to test or dynamic comparison, rather than to detect calibration data as the basis, because the precision of the aluminum foil simply amounted to less than 0.1%, so please use or to be cautious when buying instrument burst degrees)

More about Bursting strength instrument , you can follow as below, Qinsun Instruments Co., LTD,

Address: No. 258 Banting Road, Shanghai, Zip Code: 201615 Phone: +86-21-6420 0566 Fax: +86-21-6420 0566-810     E-mail: info@qinsun-lab.com    website: www.qinsun-lab.com.