Rubber technology

Different rubber products have different processing processes, but rubber mixing, calendering, extrusion, molding, and vulcanization are the basic processes of rubber processing.

Rubber compounding:

sub-plasticization and mixing. Mastication is defined as lowering the molecular weight, increasing the plasticity, improving the processing performance, and making the plasticized rubber that meets the requirements. The mixing is defined as mixing the rubber and the compounding agent evenly. And dispersion, made into a rubber compound, using equipment as an open mill, internal mixer and extruder

Calendering:

It can be used to make pure film, skeined film and cover material such as curtain, canvas, copper-plated steel cord and other skeleton materials.

Extrusion:

Continuous extrusion of semi-finished products of different sections such as rubber, profiles, treads, sidewalls, inner tubes, films, etc. for different moldings, for molding and direct vulcanization

Vulcanization:

The final process of rubber processing is the use of individual vulcanizers, vulcanization tanks, flat vulcanizing machines, and equipment such as microwaves to cure unvulcanized semi-finished products under certain conditions. After the initial modification, the finished product is processed.

Rubber processing is the process of turning raw rubber into a product with the required shape, size and performance through a series of processing processes. It mainly consists of three parts:
1.Raw materials and cooperation;
2.Processing process
3.Performance Testing.

Raw materials and matching materials

In addition to the main raw material rubber used in the manufacture of rubber products, it must also be combined with other compounding agents. In the past, the manual operation was more manual, and now the large-scale internal mixer uses the auxiliary auxiliary system and the microcomputer control to realize the factory automation.

Raw rubber: parent material

Vulcanization system:

changing rubber from linear macromolecules to stereoscopic reticulum macromolecules

Reinforcement filling system: improve the mechanical properties, make non-self-reinforcing rubber obtain application, improve process performance and reduce cost; others have functions such as flame retardant, conductive, magnetic, etc.

Anti-aging system: prolong the service life of rubber products, mainly aging caused by heat, oxygen, ozone, photo-oxidation, ions, fatigue, mold, etc.

Plasticization and operation system:

reduce the viscosity of the rubber compound, improve the processing performance and reduce the cost. There are mainly plasticizers, dispersants, homogenizers, tackifiers, peptizers, scorch inhibitors, mold release agents, etc.

Special compounding system:

It imparts special properties to rubber, such as bonding, coloring, foaming, flame retardant, coupling, antistatic, conductive, scent, hardening, lubrication, anti-spray and other coordination systems.