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As the world's leading rubber and plastics exhibition, Shanghai AirMaster will bring an industry feast to industry insiders. We sincerely invite you to come to the scene to witness the prosperity and development of the rubber and plastic industry and discuss the future trend of the industry. Let's meet at the National Convention and Exhibition Center in Hongqiao, Shanghai! Hebei Shuangda Exhibition: Chinaplas 2024 Date: April 23-26, 2024 Address: National Exhibition and Convention Center, Hongqiao, Shanghai, China Booth No.: 7.1 D14 (Hall 7.1) Looking forward to meeting you!!

As businesses continue to grow, so does the need for equipment and technology. As a professional machinery and equipment supplier, Sunda has always been committed to providing high-quality and high-efficiency equipment and solutions for enterprises. In order to meet the needs of enterprises, Shuangda Company will have a batch of high-quality equipment shipped in the near future to provide strong support for the efficient operation of enterprises. This batch of equipment covers a variety of fields, including automated production lines, automation equipment, rubber and plastic machinery and so on. These equipment have been rigorously inspected and tested to ensure stable performance and reliable quality. At the same time, Shuangda company also provides perfect after-sales service to ensure that enterprises can get timely technical support and maintenance services in the process of use. Sun-Da has always adhered to the service concept of "customer first" and always put the needs of customers first. The delivery of this batch of equipment can not only meet the needs of enterprises, but also help enterprises achieve efficient operation and sustainable development. We believe that with the support of Shuangda Company, the company will be able to achieve more brilliant results.

Shuangda Company successfully received Indian customers and used hot pot as a medium to promote business cooperation On February 5, 2024, Shuangda's most distinctive hot pot restaurant held a special business reception event. The main purpose of the event was to receive customers from India, deepen their understanding of each other through tasting the traditional Chinese delicacy of hot pot, and use this as an opportunity to discuss future business cooperation. On the day of the event, the person in charge of Shuangda Company came to the hot pot restaurant early, carefully arranged the venue, and prepared rich ingredients. After the arrival of the Indian customer, the two sides had a cordial and friendly exchange. In a relaxed and happy atmosphere, everyone sat around the steaming hot pot, tasted delicious ingredients, and exchanged each other's culture and business ideas. The lively atmosphere and unique dining style of the hot pot restaurant make Indian customers feel the charm of Chinese culture. They said that through this event, they had a deeper understanding of Shuangda's professionalism and corporate culture, and were full of expectations for future cooperation. While eating and tasting food in the factory, Mr. Jiang and Mr. Song, the leaders of Shuangda Company, together with Mr. Hu Xiaolan, the sales manager, introduced the company's business scope and advantages to Indian customers in detail. They emphasized that as an enterprise with profound strength, Shuangda is willing to develop together with global partners to create a better future. After pleasant exchanges, both sides agreed that in the future business development, they can give full play to their respective advantages and jointly develop a broader market. They said that they would further strengthen communication and cooperation to jointly promote the development of the business. This event not only deepened the friendship between Sunda and Indian customers, but also laid a solid foundation for the cooperation between the two sides. It is believed that with the joint efforts of both sides, the future cooperation will surely achieve more fruitful results.

The operator must be familiar with the extruder he operates, and must correctly grasp the characteristics of the screw, the control of heating and cooling, the characteristics of the instrument, the structure and assembly of the control mold of the traction machine, etc., so as to correctly grasp the extrusion process conditions and operate the machine correctly. General steps for debugging 1. Before starting the machine, check whether the temperature control is sensitive, whether the instrument is out of order, whether the cooling channel is unblocked, etc. Usually the thermometer, cooling water and other methods are used for detection. 2. According to the extruder operation procedures, the screw, barrel and die head of the extruder are heated, and after the temperature rises to the set temperature, it must be kept warm for about 10 minutes before the machine can be started, so that the temperature of each part of the machine tends to be stable. 3. Before starting the machine, be sure to tighten the connecting screws and bolts of each part of the die while they are hot. Before the material is extruded, the operator must not stand in front of the die to prevent bolts or screws from breaking and causing injury accidents. 4. When starting extrusion, the screw speed should be slow, and then gradually increase to prevent overload and damage to the parts during starting. 5. When starting the machine, add a small amount of material first, and keep the feeding balance, pay close attention to various table values such as torque when feeding, and wait for the material to be extruded from the die head and pull on the traction equipment, so as to gradually increase the amount of material until normal extrusion. 6. When starting traction, there should be a certain distance between the shaping die and the die head to facilitate traction. Open the waterway (note that water should not be poured on the die, otherwise it will cause the discharging of the die head to be abnormal and lead to material breakage or mold plugging), the shape is complex, the cavity is small and the cover plate of the mold needs to be opened for multi-cavity profiles; After confirming that the plasticization of the extruded material is normal, the material is pulled to the tractor through the set towing rope. Shorten the distance between the setting table and the die head, cover the cover plate, start the vacuum pump, and when the extrusion speed and the traction speed are basically balanced, observe the profile to normal extrusion and then shrink the distance between the setting table and the die head to the ideal value. 7. If it is found that the parison is not formed at the inlet end of the shaping die or the inner rib adheres to the inner cavity surface of the profile, a pointed tool can be used to poke several small holes in the unformed part of the parison or the inner rib part of the inlet end of the first section of the shaping die, so that the small cavity is connected with the atmosphere, and the parison is open when it enters the setting die, which is convenient for the formation of negative pressure and promotes the parison to be closely attached to the mold wall of the shaping die. 8. In case of mold plugging (not blocked), the setting table should be moved back or the traction speed should be increased immediately, or the above two schemes should be implemented at the same time, and then the normal production should be resumed through process adjustment. If the implementation of the above scheme has been blocked, the setting table should be moved back immediately, and the material should be shoveled along the shaping mold, the water vapor of the shaping die should be closed, the traction speed should be reduced, and the profile should be slowly pulled out from the shaping mold. If part of the profile is broken in the setting die, it is necessary to disassemble the setting die and completely remove the remaining material. 9. When the machine is stopped, it is generally necessary to add the stop material to squeeze out the production material in the machine, and then stop the machine and disassemble the die head while it is hot for mold cleaning.

In our lives, we can see silicone products every time, such as silicone gloves, door and window seals, LED flexible light strips, automotive glass sealants, human silicone, etc., it can be said that silicone products are inseparable from our lives. However, most of the silicone products are extruded by the silicone extruder, especially the silicone tube, silicone strip, silicone special-shaped sheet, etc., because the silicone products produced by the silicone extruder have high production efficiency, large output and excellent quality. Silicone extruder is a basic equipment in the silicone industry, which plays a very important role in the production process of pipe strips. So let's talk about the silicone extruder, what structure it consists of, and what is its working process, and finally let's take a look at the application of the silicone extruder and see what impact it has brought to our lives? 1. The process structure of the silica gel extruder The silicone extruder is mainly composed of a power motor, a reducer, a speed controller, a feed port, an extrusion screw, and an extruder head. 2. Analysis of the workflow of the silicone extruder 1. Prepare before starting the silicone extruder (1) Check whether there is any abnormal phenomenon in each part of the machine, whether the fasteners are loose, whether there is leakage in the pipeline, etc.; (2) The gearbox should be injected with filtered lubricating oil, and the height of the oil level should be consistent with the engraved line of the oil level indicator; Each lubrication point should be filled with sufficient grease; (3) Prepare plates and various tools; (4) According to the production task list issued by the machine, move the plasticized rubber to the feeding port, and place it on the pay-off frame after the core is qualified; (5) Choose a good mold sleeve and mold core. 2. The silicone extruder is turned on (1) Start the drying sleeve and set the temperature according to the process requirements; (2) Start the heater and set the temperature according to the process requirements; (3) Before the official start, there is no periodic impact sound or other abnormal sound during operation, and whether the screw and bushing are scraped; (4) Connect the wire core through the mold core and the lead wire, and the lead wire passes through the baking sleeve through the spark machine through the powder box, winds it 3~4 times on the traction wheel, and then fixes the lead wire on the take-up reel; (5) mold calibration: start the screw, slowly rotate the speed regulating potentiometer, extrude the rubber material, you can carry out the mold calibration, the mold correction is adjusted by the big bolt on the knob head, after the initial adjustment of the mold, first open a section, after the cable surface to identify the direction of the mark, check whether it is eccentric, after the mold is adjusted, you can produce normally; (6) During normal production, it is necessary to pay attention to the operation of the equipment and the quality of the product, often measure the outer diameter, observe the appearance, and the surface of the cable should be smooth, uniform in color, no mechanical damage, no obvious bamboo shape, impurities and other defects; (7) After extruding a coil of cable, or squeezing to a certain length, the thickness and appearance of the cable should be checked repeatedly, and the outermost layer of each cable should be at a certain distance from the side plate, and each cable should be hung with a process flow card and recorded; (8) If there is an abnormal phenomenon or abnormal sound during the working process of the silicone extruder, it should be stopped immediately for inspection and repair or notify the relevant departments.

Hebei Shuangda Rubber & Plastic Machinery Co., Ltd, located in Liyuantun Industrial Zone, Wei County, Southeastern of Hebei Province, covers an area of 12,000 square meters, with 120 employees wherein 10 technicians and 15 salesman. Our company, integrating Research & Development, production and sales, is a modern enterprise engaged in professionally producing rubber, silicone, plastic extruder machinery and the complete auxiliary equipment.The main equipment includes rubber compound extruder production line, rubber hose extruder production line, pro-forming extruder machinery, silicone extruder production line, butyl rubber extruder production line, compound sealing strip production line, spiral protective jacket production line, pipe production line, elastomer extruder machinery, sheet profile production line etc. Our equipment also widely used in the producing of engineering sealing, automobile sealing, cable wire, vehicle rubber hose, braided tube, water-stop etc. At present, the company has customers morn than 20 provinces and autonomous regions in China, and exported to the oversea countries, especially Middle East, Europe and America market. By the morn than 20 years` unremitting efforts, the company has obtained over 10 patent certification and has been awarded ISO9001 QHSA18001 IS014001 and other management system certification, CE security certification