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12 2024
What is a Melt Pressure Transducer
Melt Pressure Transducer is a measuring device used especially in plastic, rubber, textile and chemical industries. This device is designed to measure the pressure of molten materials (e.g. polymers) accurately and precisely. Melt pressure measurements are of great importance for the control and quality assurance of production processes.
Areas of Use
Plastic Extrusion: In plastic extrusion processes, continuous monitoring of melt pressure increases product quality and production efficiency. Melt pressure transducers play a critical role in ensuring the appropriate density and flow rate of the plastic material at the mold exit.
Injection Molding: In injection molding processes, the pressure control of the polymer injected into the mold affects the product surface quality and dimensional accuracy. Keeping the pressure under control reduces the risk of deformation.
Chemical Industry: Melt pressure transducers are used in chemical processes where reactions occur at high temperatures and pressures. These devices optimize the reaction speed and safety.
Working Principle
Melt pressure transducers generally consist of the following components:
Pressure Sensor:
Detects the physical pressure created by the molten material and converts it into an electrical signal.
Diaphragm:
An intermediate layer resistant to high temperatures and chemical properties of the molten material. The diaphragm protects the sensor.
Electrical Output:
Pressure values are transmitted to a control system or indicator as an electrical signal. Output signals are usually in mV/V, 4-20 mA or 0-10 V format.
Technical Specifications
Temperature Resistance: Resistant to high temperatures up to 400°C.
Pressure Measurement Range: Can vary between 0 and 700 bar.
Accuracy Level: ±0.5% or higher sensitivity.
Advantages
High Sensitivity: Can detect even small pressure changes.
Long-Lasting and Durable: Made of materials resistant to harsh conditions.
Reliability: Provides early detection of problems such as pressure imbalance in the process.