On a section of a high-quality welded joint,
Posted: Mon Feb 10, 2025 4:18 am
Polypropylene is a thermoplastic polymer. When heated to a certain temperature, it begins to soften and melt, transitioning to the liquid phase, but when cooling, the material regains its hardness without czech republic mobile database its physical and chemical properties and mechanical strength. This means that if two parts made of polypropylene are heated at the junction to the level of softening, but without allowing the element itself to deform, and then combined with a certain force, then interpenetration of the molten layers will occur. Well, after reverse polymerization, a conjugation will be obtained that is distinguished by almost complete monolithicity - if you look at a section of a high-quality joint, then the boundary between the two parts, most likely, will not even be visually determined.
the border is not visible at all – it is an absolutely monolithic unit
So, for welding polypropylene parts it is necessary to ensure two conditions - heating to the stage of melting of the joints and ensuring their compression for interpenetration of the plastic and final polymerization. This is ensured by two main technological methods.
Prices for plastic pipe welding machines RESANTA
plastic pipe welding machines RESANTA
Butt welding
This technology is used to connect pipes of the same type and equal diameter. Extremely important conditions are ensuring strict alignment of the joined parts and careful preparation of the ends for ideal initial adhesion of the surfaces.
For butt welding, pipes of equal diameter are positioned strictly coaxially and the ends are carefully processed.
Then, both ends of the mating pipes are heated simultaneously to achieve melting to the required depth over the entire cross-sectional area.
the border is not visible at all – it is an absolutely monolithic unit
So, for welding polypropylene parts it is necessary to ensure two conditions - heating to the stage of melting of the joints and ensuring their compression for interpenetration of the plastic and final polymerization. This is ensured by two main technological methods.
Prices for plastic pipe welding machines RESANTA
plastic pipe welding machines RESANTA
Butt welding
This technology is used to connect pipes of the same type and equal diameter. Extremely important conditions are ensuring strict alignment of the joined parts and careful preparation of the ends for ideal initial adhesion of the surfaces.
For butt welding, pipes of equal diameter are positioned strictly coaxially and the ends are carefully processed.
Then, both ends of the mating pipes are heated simultaneously to achieve melting to the required depth over the entire cross-sectional area.