How to identify the cause of the embrittlement of the mesh belt chain conveyor?

When it acts on the deformed rubber, cracks appear perpendicular to the direction of the stress effect, that is, when the so-called active oxygen cracking acts on the deformed rubber, only an oxide film is formed on the surface without cracking.

Heat: The forward temperature can cause catalytic cracking or thermochemical crosslinking of the vulcanizate. But the fundamental effect of heat is still the active effect. Proceeding oxygen dispersion rate and active air oxidation reaction, and then accelerating the rate of vulcanized rubber air oxidation reaction, which is a common embrittlement phenomenon - thermal oxygen embrittlement.

Light: The fewer light waves, the greater the kinetic energy. It is ultraviolet light with relatively high energy that has a damaging effect on rubber. In addition to the direct cracking and chemical crosslinking of the molecular chain of the rubber, the ultraviolet light can disperse radicals due to the absorption of solar energy, causing and accelerating the oxidation chain reaction process.

Ultraviolet light plays a heating effect. Another feature of the light effect (different from the thermal effect) is that it mainly grows on the surface of the rubber. For the test piece with glue content, there will be network cracks on both sides, that is, the so-called smooth surface cracks.

Mechanical stress: Under the repeated effects of mechanical stress and the continuous repulsion process with the idler, the mesh belt chain conveyor will split the molecular chain of the vulcanized rubber to form a dispersed base, causing an oxidation chain reaction and forming Force organic chemistry process.

The mechanical equipment splits the molecular structure chain and the active air oxidation process of the mesh belt chain plate loading conveyor equipment. Which one prevails depends on the criteria of its address. In addition, it is easy to cause active oxygen to crack under the effect of stress.

The above content is the analysis of how to identify the embrittlement of mesh belt chain conveyor manufacturers by Zhejiang mesh belt chain conveyor manufacturers!

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