The importance of the pump tube as one of the three components of the peristaltic pump goes without saying, but high-quality pipes are not easy to produce, which is why it is recommended that you buy a conventional manufacturer. So what exactly does it affect? Today, Pry Fluids will tell you about the factors that affect the production of peristaltic pump hoses.
Viscosity of silica gel
When silica gel is plastic, that is, internal friction or flow resistance between molecules. Viscosity is usually proportional to hardness. Tensile strength Design Tensile strength is the force required to guide the range of units required to tear a sample of silica gel material. The tensile strength of hot sulfur solid silicone rubber ranges from 4.0-12.5MPa. The tensile strength of fluorosilicone rubber ranges from 8.7-12.1MPa. The tensile strength of liquid silicone rubber ranges from 3.6-11.0MPa.
Tearing strength
Resistance to the expansion of a cut or mark when a force is applied to a cut sample. Hot sulfur solid silicone rubber will not tear even when cut under high torsional stress. The tear strength of hot sulfur solid silicone rubber ranges from 9 to 55kN/m. The tearing strength of fluorosilicone rubber ranges from 17.5 to 46.4kN/m. The tearing strength of liquid silicone rubber ranges from 11.5-52kN/m. Elongation usually refers to "rupture elongation" or the percentage relative to the original length when the sample breaks. The general elongation of hot sulfurized solid silicone rubber is between 90% and 1120%. The general elongation of fluorosilicone rubber is between 159% and 699%. The general elongation of liquid silicone rubber is between 220% and 900%. Different processing methods and the choice of hardener can greatly change its elongation. The elongation of silicone rubber is closely related to temperature.
Operating time
The operation time is calculated from the moment the vulcanizing agent is added to the colloid. In fact, there is no complete boundary between this operation time and the subsequent vulcanization time. The colloids undergo a vulcanization reaction from the moment the vulcanization agent is added. This operation time means that a 30-minute vulcanization reaction of the product will not affect the quality of the finished product. Therefore, the more time the product saves during operation, the better it will be for the finished product.
Curing time
Some places can be called curing time. That is to say, after such a long time, the vulcanization reaction of silica gel is basically over. This is basically the end, that is, the product is already available, but in fact, the curing reaction is not yet over. Therefore, products made of silicone rubber, such as silicone molds, usually need to be placed for a period of time before they can be put into use
Hose selection precautions
1. Whether the pipe size matches the pump used, otherwise the pipe will be removed.
2. Whether the liquid transported by the pipeline will react with the hose.
3. Pay attention to whether the hose is tightly installed during installation, otherwise the pipe will accumulate or even scratch.