Rubber vulcanizing apparatusIt is an experimental equipment used to test the changes in physical properties during the rubber vulcanization process. By simulating actual production conditions and accurately controlling parameters such as temperature, pressure, and time, it continuously measures the performance changes of rubber materials such as shear modulus and torque, providing a basis for quality control, formulation optimization, and production process improvement of rubber products.
The rubber vulcanizer is a key equipment used in the rubber industry to test the physical properties of the vulcanization process. Its core functions include:
Process optimization:
By measuring parameters such as coke burning time, sulfurization time, and sulfurization rate, the three major elements of the sulfurization process (time, temperature, pressure) are scientifically determined to avoid problems of under sulfur or over sulfur. For example, a rotorless vulcanizing instrument can accurately generate vulcanization curves, providing data support for formula design.
Quality control:
Real time monitoring of the vulcanization characteristics of rubber on the production line to ensure consistent performance of each batch of products. Its testing error is only 1% -2%, which can quickly detect small differences in raw materials or rubber compounds.
R&D support:
Used for new formula development, raw material performance evaluation, and cost optimization. By comparing the vulcanization curves of different formulations, the research and development cycle can be shortened and waste can be reduced.
The calibration of rubber vulcanizing instrument should be carried out according to the following methods:
Calibration cycle:
Routine calibration: Calibration is required every 3 months or after 100 tests
Temperature calibration: Check temperature uniformity before each use
Sealing inspection: Check the sealing of the mold cavity every month
Calibration method:
Temperature calibration:
Use a thermocouple with a precision of ± 0.5 ℃ and test it using the 5-point method or 9-point Fabry Perot method
Record continuously for 30 minutes, and calculate the maximum temperature difference to be ≤ ± 1 ℃ as qualified
Sealing inspection:
Check whether the sealing ring of the mold cavity is aging and ensure that there is no air leakage