This is a technology that is used in manufacturing of useful materials from rubber. This types of latex that can be used either being synthetic or natural. Some of the other methods other than rubber extrusion that may be used in processing rubber into useful forms are calendaring and mastication.
This process is different from the other types of rubber because it is used in production of products having a fixed cross-sectional profile. It involves the elastomer mono-layer and multi-layer lines. Every line is monitored by a computer which includes set of checks ranging from material tracking down to size inspection. Each section of the process is closely scrutinized starting from the material mixing to the provision of finished product.
Both straight products and those that have different shapes can be produced using this process. The finished product is then strengthened using other polymers for example aramide, polyamide and polyester or other metals like stainless steel.
When this process is used as opposed to the others there might be some advantages. One among several advantages is the fact that it has the ability produce complex cross-sections. It can also be used on very brittle products because the process undergoes a shear and comprehensive procedure.
The extrusion process can be done on either hot or cold material. It can produce either continuous products or semi-constant products. These continuous products are the ones that are indefinitely long whereas semi-continuous are broken down into several pieces.
As part of this extrusion process, the material to be used is added into the extruder. Later there are additives that are also fed into the extruder in such as antioxidants, curing agents and pigments. The extruder is normally made up of a heating barrel that is closely fitted and a rotating screw. Here the product is pressurized, tenderized and compressed into the die as it leaves the extruder. The die is refers to a metal plate that has the shape of the desired final product.
After the latex has been softened and forced into the die by the rotating screw, it is forced from the die. At this point a process known as die swell takes place. This makes the cross-sectional area of product to be bigger than that of this die. This cross-section becomes bigger in different manners depending on the product being used. After this, curing and vulcanization is performed in order to maintain the strength of product and to avoid loss of some of its physical properties.
This process may however have some defects such as, surface cracking where the surface to extrude cracks usually as a result of excess temperature or friction. Internal cracking can also occur where the center of this product develops voids. Surface lines may also develop most likely caused by the condition of the die used in the process. Some residues of extruded product may stick to the die therefore forming unwanted lines appearing on the finished product.
This process is different from the other types of rubber because it is used in production of products having a fixed cross-sectional profile. It involves the elastomer mono-layer and multi-layer lines. Every line is monitored by a computer which includes set of checks ranging from material tracking down to size inspection. Each section of the process is closely scrutinized starting from the material mixing to the provision of finished product.
Both straight products and those that have different shapes can be produced using this process. The finished product is then strengthened using other polymers for example aramide, polyamide and polyester or other metals like stainless steel.
When this process is used as opposed to the others there might be some advantages. One among several advantages is the fact that it has the ability produce complex cross-sections. It can also be used on very brittle products because the process undergoes a shear and comprehensive procedure.
The extrusion process can be done on either hot or cold material. It can produce either continuous products or semi-constant products. These continuous products are the ones that are indefinitely long whereas semi-continuous are broken down into several pieces.
As part of this extrusion process, the material to be used is added into the extruder. Later there are additives that are also fed into the extruder in such as antioxidants, curing agents and pigments. The extruder is normally made up of a heating barrel that is closely fitted and a rotating screw. Here the product is pressurized, tenderized and compressed into the die as it leaves the extruder. The die is refers to a metal plate that has the shape of the desired final product.
After the latex has been softened and forced into the die by the rotating screw, it is forced from the die. At this point a process known as die swell takes place. This makes the cross-sectional area of product to be bigger than that of this die. This cross-section becomes bigger in different manners depending on the product being used. After this, curing and vulcanization is performed in order to maintain the strength of product and to avoid loss of some of its physical properties.
This process may however have some defects such as, surface cracking where the surface to extrude cracks usually as a result of excess temperature or friction. Internal cracking can also occur where the center of this product develops voids. Surface lines may also develop most likely caused by the condition of the die used in the process. Some residues of extruded product may stick to the die therefore forming unwanted lines appearing on the finished product.
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