One-component silicone sealant for construction. Before curing, it is a thixotropic paste composed of base rubber, reinforcing agent, pigment, filler, tackifier and curing agent. When it encounters moisture in the air at room temperature, it can be cured into an elastomer. Therefore, when manufacturing this type of sealant, it is necessary to complete multiple processes such as production and product packaging in a closed condition that isolates moisture to ensure that the sealant has a long-term storage stability before construction.

　　In the production process of silicone sealant, with the promotion of traditional equipment continuous technology and double-screw automatic production line, the production efficiency and production capacity of silicone sealant have been greatly improved compared with before. As people's requirements for organic silicon production environment and labor intensity of workers are increasing, how to use automation equipment to improve the production environment and complete heavy manual labor has become an issue of increasing concern for current enterprises.

　　Compared with the automated production line, the traditional production process of the can-changing intermittent production method and the manual control metering adjustment device maintain the production of silicone sealant. If it is necessary to further improve the product grade and increase the reproduction rate of high-quality products, it is restricted.

　　The twin-screw automatic production line is a full-automatic production line with twin-screw machine as the main production equipment, and loss-in-weight measurement is called the main measurement equipment. Production raw materials pass through a fully automatic production line of metering equipment. Production raw materials are automatically and continuously input to the main equipment twin-screw through the metering system. The materials are dispersed, ground, reduced and reacted in the twin-screw machine. The produced products are continuously output from the twin-screw equipment and enter the packaging equipment. Packaged into products. The whole process is continuous and uniform without intermediate loss.

　　Advantages of fully automatic production line:

　　1. High production efficiency. It can produce 600-4500KG of materials per hour, and the monthly output is 400-3000t according to different models, which is suitable for large-scale production;

　　2. The performance of the product produced with the same formula is improved by 20%, the appearance is improved by 30%, the twin-screw dispersibility is good, the produced product is uniform and delicate, low boiling content (<0.5%), and low water content (<0.1%);

　　3. The products produced have no fluctuations between batches, and the product uniformity and stability are excellent;

　　4. High degree of automation, raw materials can be directly input to produce products, no production base materials are required, and there are no intermediate products in the manufacturing process;

　　5. Less material and energy loss, cost saving, and input-output rate increased by 2-3% compared with batch method production;

　　6. The labor intensity is low, and the required personnel is only 1/6 to 1/3 of that of intermittent production;

　　7. The production process is a closed process, which prevents the product from directly contacting the air, does not require cleaning equipment, saves cleaning agents and auxiliary materials, does not pollute the environment, does not endanger the health of the operator, the workshop has low odor, no dust, and the ground is clean;

　　8. The computer control system automatically mixes ingredients according to the formula, with accurate measurement, multi-point detection of intermediate samples, and online adjustment of product quality.

　　Comparison of advantages of double-screw automatic production line and traditional production equipment:

　　In order to save energy and reduce consumption, improve product quality, reduce costs, and improve the workshop environment, the company has currently launched an automated production line project in January 2017. It is expected that the installation and commissioning will be completed in July 2017. By then, the company's product quality will increase by a step and its market competitiveness Will be significantly improved.