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Characteristics of fluoroplastic heat exchangers
The chemical properties of fluoroplastics are extremely stable, with excellent corrosion resistance. The surface of the fluoroplastic pipe wall is smooth and has moderate flexibility, and there is slight vibration during use, so it is not easy to scale. Fluoroplastic heat exchangers have a small volume and compact structure, and the heat transfer area per unit volume of the equipment is more than four times that of metal tube shell heat exchangers. Flexible fluoroplastic pipes can work under the impact and vibration of fluids, and tube bundles can be made into various special shapes as needed. Fluoroplastics have low thermal conductivity, poorer mechanical properties than metals, and are not resistant to high temperatures. The use of small diameter and thin tube walls, although compensating for thermal conductivity and mechanical properties, can still only be used in lower pressure and lower temperature situations.
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The Forming Performance of PFA Plastics
1. Crystalline material with low moisture absorption. Products can be processed using the usual processing methods of thermoplastic. 2. Poor fluidity, easy to decompose, and produce corrosive gases during decomposition. It is advisable to strictly control the molding temperature not to exceed 475 degrees Celsius, the mold should be heated to 150-200 degrees Celsius, and the pouring system should have low resistance to material flow. 3. Semi transparent granular material, injection molding, extrusion molding. The molding temperature is 350-400 degrees Celsius, and above 475 degrees Celsius, it is easy to cause discoloration or bubbles. And pay attention to the difficulty of demolding. 4. Due to the corrosive effect of molten materials on metals, long-term production requires chromium plating treatment for molds.
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2023
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Introduction to the Advantages of PTFE Engineering Plastics
Polytetrafluoroethylene [PTFE, F4] is one of the materials with good corrosion resistance in the world today, hence earning the nickname of "plastic king". It can be used for a long time in any type of chemical medium, such as PTFE seals, gaskets, and gaskets PTFE seals, gaskets, and sealing washers are made by using suspension polymerized PTFE resin molding. Compared with other plastics, polytetrafluoroethylene has excellent chemical corrosion resistance and temperature resistance, and it has been widely used as a sealing and filling material.
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2023
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Warm congratulations on the launch of the website of Nantong Jintongmao Electronics Co., Ltd!
Warm congratulations on the launch of the website of Nantong Jintongmao Electronics Co., Ltd!
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2023
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