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After coal-fired boilers are phased out, how should temperature be controlled in rubber vulcanization?

2017-03-02 View Original

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The use of oil heaters in the vulcanization of rubber tires: Someone has compared tires to the shoes we wear in our daily lives, and that analogy isn’t entirely wrong. However, we have never heard of cases where a shoe sole ruptured and caused death, while incidents of tire failures leading to vehicle destruction and casualties are something that happens from time to time. Therefore, the load-bearing capacity, shock absorption, wear resistance, operational performance, stability, and reliability of tires are all very important. So how are tires produced? What considerations need to be taken into account during the production process, and what equipment is used? The tires we come into contact with are generally molded through a vulcanization process, and the main equipment required includes vulcanization machines, high-temperature oil heaters, and ovens. The vulcanizing machine is primarily used for fixing tire molds and controlling the vulcanization pressure and time. The high-temperature oil heater is primarily used to provide the temperature required for the vulcanization process in the vulcanization molds. . The vulcanization process for rubber tires typically involves using a high-temperature medium, namely heat transfer oil, with a temperature of 175°C to 220°C, which is 15%~25% higher than the usual conventional vulcanization temperatures, and feeding this medium into the vulcanization mold. This raises the temperature of the vulcanization mold, thereby accelerating the cross-linking reaction during the vulcanization process. The vulcanization process for tires generally involves preheating the components to be vulcanized, controlling the temperature of the vulcanization mold, introducing gas, carrying out tire vulcanization, and then opening the mold to complete the process. First, the vulcanization mold and oven are heated using a high-temperature oil heater, which facilitates the subsequent manufacturing process. The heat transfer oil is pumped into the vulcanization mold and oven via this high-temperature oil heater; through continuous heating, the temperature of the heat transfer oil is raised to 185 degrees, thereby bringing the temperature of the vulcanization mold to 180 degrees. After the initial heating process is completed, the parts to be vulcanized are placed in an oven to soften them, making it easier to insert them into the vulcanization molds. Once the parts are in the molds, the molds on the vulcanization machine are closed to prepare for vulcanization. After the molds are closed, due to the high temperature of the vulcanization mold, the vulcanized part gradually takes on the shape of the mold. At this point, it is necessary to introduce gas into the vulcanization mold in order to make the vulcanized part hollow. After completing the above steps, the next step is to begin the vulcanization process for the vulcanized parts, which lasts for 3.5 hours. During the vulcanization process, the temperature of the high-temperature oil heater is maintained at a set level, thereby preventing temperature fluctuations during vulcanization from resulting in tire qualities and standards that do not meet the required levels. After a 3.5-hour vulcanization process, the vulcanization mold on the vulcanizer was opened to remove the successfully vulcanized tire product. The tires that we see in everyday life are produced through such a manufacturing process. Nanjing Oueneng Machinery is a manufacturer of high-temperature oil heaters that integrates research and development, production, sales, and service. The high-temperature oil heaters developed by us are widely used in the rubber tire industry. By selecting an appropriate heating power, the oil inlets and outlets of multiple vulcanization machines in the production workshop can be connected to the main oil inlet and outlet pipelines of the high-temperature oil heater via metal hoses, allowing high-temperature heat-conducting oil to be injected into the vulcanization molds through the high-temperature oil heater. By using the high-temperature oil heaters developed and produced by Nanjing Oueneng Machinery, traditional boilers can be replaced, thereby reducing labor costs. The control systems for high-temperature oil heaters utilize imported electrical components from brands such as ABB, LS, Siemens, and Schneider. The temperature control system is equipped with controllers from the WEST P6100 series from the UK, allowing for a temperature control accuracy of up to ±1°C. Of course, safety measures during the production process are also very important. Equipment such as the high-temperature oil heaters produced by Nanjing Oueneng Machinery is equipped with various protective functions, including temperature anomaly protection, over-temperature protection, reverse flow protection, pump overload protection, oil deficiency protection, a BY-PASS pressure relief circuit, manual and automatic exhaust systems, and an emergency stop switch, all of which help ensure safe production for customers. Oueneng Company adheres to the service philosophy of \"Integrity, Quality, Responsibility, Service, and Innovation.\" It believes that integrity is the lifeblood of the company; it uses innovation to drive business development, quality to build a brand, service to enhance reputation, and responsibility to establish credibility. The company sincerely hopes to work together with friends from all walks of life for common growth.

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