3 results about "Bursting strength" patented technology

The present disclosure provides a heat-sealable paper product for use in overwrapping, wherein the heat-sealable paper product: —comprises a paper substrate being a machine-glazed (MG) kraft paper having a glazed side and a non-glazed side, wherein the glazed side of the MG kraft paper is coated with a heat-sealable coating; —has thickness of equal to or below 85 μm according to ISO 534:2011; —has a tensile energy absorption (TEA) in cross direction (CD) of at least 60 J / m2 according to ISO 1924-3:2011; and—has a burst strength of at least 170 kPa according to ISO 2758:2014. The present disclosure also provides a method of producing a heat-sealable paper product for use in overwrapping as well as a method of overwrapping an item in a heat-sealable paper product.

This utility model discloses a universal auxiliary fixture for testing the pressure resistance and burst strength of aluminum shells. It includes a testing device with a base mounted on its bottom and a testing platform mounted on the top of the base. A support block is fitted onto the surface of the testing platform. The left side of a clamping assembly is fixedly connected to the right side of the support block. The bottom of a cleaning mechanism is slidably connected to the top of the support block. The cleaning mechanism includes a housing, the bottom of which is slidably connected to the top of the support block, and a connecting block is fixedly connected to the top of the housing. This utility model uses the clamping assembly to clamp and position the aluminum shell on the top of the testing platform, facilitating the testing of the aluminum shell by the testing device. Then, the cleaning mechanism and collecting assembly clean and collect the residue and debris from the aluminum shell on the top of the testing platform. This universal auxiliary fixture for testing the pressure resistance and burst strength of aluminum shells improves the stability of the auxiliary fixture and prevents residue and debris from the aluminum shell from adhering to the surface of the testing platform.

This invention belongs to the field of bottle cap production and testing technology, specifically relating to a bursting strength testing system for drinking water bottle caps, including a cap turnover assembly, an outer bursting strength testing assembly, and an inner bursting strength testing assembly. The cap turnover assembly enables batch turnover and orientation flipping of the caps. The outer bursting strength testing assembly uses a wide-headed impact head to simulate the bursting condition of a water dispenser's smart column, while the inner bursting strength testing assembly uses a narrow-headed hammer rod to reproduce the instantaneous force condition of the pull ring at the critical fracture point. This invention employs a dual-weight gradient judgment logic, achieving pass / fail criteria of non-bursting and burstable under two levels of weight. The testing load is precisely controlled through water volume adjustment and counterweight block adjustment. This invention can automate bidirectional bursting strength testing of bottle caps, verify tear structure performance, has high testing efficiency, effectively ensures the sealing and easy-to-open performance of the caps, and is suitable for batch production testing needs.