Application:

This equipment is primarily used for preparing notch cuts for buried polyethylene (PE) pipe specimens for gas. A fully automatic servo system is used to machine and prepare standard specimens for slow crack growth notch stress cracking tests on various polyethylene pipes. The machine features a high degree of automation, a simple structure, and precise digital sample preparation. It offers comprehensive functionality, stable performance, precise and rapid feed, accurate indexing, convenient clamping, safe use, and easy cleaning. In particular, it adheres to the requirement "6.4.2: Process the notch along the axial direction of the pipe so that the remaining wall thickness is between 78% and 82% of the nominal wall thickness of the pipe" in << GB/T 18476-2019 Polyolefin Pipes for Fluid Transportation - Determination of Crack Propagation Resistance - Test Method for Slow Crack Growth (Notch Test)>>. It is an indispensable testing instrument for quality inspection or new product development by plastic pipe manufacturers, scientific research institutions, the chemical industry, and colleges and universities.

Features:

The test machine consists of an automatic specimen rolling system, a wireless remote control, a specimen clamping system, and a milling cutter system.

1. The automatic specimen rolling system, controlled by a stepper motor and PLC, rotates the test tube, achieving ultra-precise test position.

2. The specimen clamping system requires manual adjustment for the initial cut; it automatically completes after the second cut.

3. The milling cutter system utilizes a backlash-free ball screw that automatically adjusts the zero point between the tube and the cutter according to the tube length.