Device and method for quickly compressing and releasing sample through rubber test

Abstract

The invention belongs to the technical field of the rubber compression deformation determination, and specifically discloses a device for quickly compressing and releasing a sample through a rubber test. The device comprises a G-shaped rack, a cone connecting plate, and a bearing cone; the cone connecting plate is assembled at a lower part of the G-shaped rack; internal thread is arranged in the cone connecting plate, a threaded column adapted to the internal thread is fixed at the bottom of the bearing cone, the threaded column is screwed with the internal thread, and the height of the bearing cone is adjusted through the rotation of the threaded column; a support plate is assembled at the top of the bearing cone, the support plate and the G-shaped rack are in clamping connection; a quickclamp is assembled at an upper part of the G-shaped rack, the quick clamp and the bearing cone are vertically arranged, and the quick clamp is arranged above the bearing cone. Before dismounting thecompression clamp, the quick clamp applies the pressure on the compression clamp, multiple bolts on the compression clamp can be tightly screwed or dismounted at the same time to reach an aim of quickly dismounting the compression clamp, and the problem that the sample is unevenly stressed in the dismounting is solved.

Description

Technical field [0001] The invention belongs to the technical field of rubber compression deformation measurement, and specifically relates to a device and a method for quickly compressing and releasing a sample in a rubber test. Background technique [0002] Determination of compression set of vulcanized rubber and thermoplastic rubber at room temperature, high temperature and low temperature: at standard laboratory temperature, compress the sample of known height to the specified height according to the compression rate, and immerse the oil at the specified temperature Next, compress for a certain period of time, and then remove the compression under standard temperature conditions. Return the sample in a free state for a specified time, and measure the height of the sample. During each test, the tester uses a wrench to clamp the compression clamp on the vise during each test, and rotate the nut one by one to pressurize and release. During the compression and release process, b...

AI Technical Summary

Problems solved by technology

During each test, when compressing and releasing, the tester uses a wrench to clamp the compression fixture on the vise, and rotates the nut in a circle to pressurize and release. During the compression and release process, because the multiple bolts on the compression fixture are not If it is tightened at the same time, the force on the sample will be unbalanced, and the disassembly and assembly of the compression fixture will take a long time. When the compression fixture is disassembled, the temperature of the sample has changed, which will affect the determination of the test results.

Images