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The application of advanced composite materials in drone structural components.
2024-10-28
Unmanned Aerial Vehicle (UAV), commonly referred to as "drone," is an aircraft that is operated without a human pilot on board, using radio remote control and onboard programmed control systems, or fully or intermittently autonomous operation via onboard computers. As a new type of aircraft, drones differ from manned aircraft in terms of operational requirements and mission objectives. Drones typi...
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The application of high-performance long glass fiber (LFT) materials in explosion-proof cameras
2024-10-28
As we all know, explosion-proof products have extremely specific requirements—explosion-proof ratings, material standards, sealing performance, functionality, certification requirements, and more. Among these, material requirements are particularly stringent. Taking explosion-proof cameras as an example, most currently use stainless steel or cast aluminum alloy for the casing, which can withstand ...
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The six essential requirements for precision injection molding
2024-10-25
In injection molding design, in addition to general mold design considerations, the following aspects should be given special attention: 1. To achieve the desired product dimensional tolerance, appropriate mold dimensional tolerances must be considered. 2. Preventing fluctuations in molding shrinkage rates should be accounted for. 3. Preventing molding deformation must be addressed. 4. Avoiding de...
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Tsinghua University: Study on the Comprehensive Performance and Influencing Factors of Long Glass Fiber Reinforced PA66 Composites
2024-10-22
Introduction Fiber-reinforced polymer composites, due to their lightweight and high-strength characteristics, have found applications in many fields, especially in the transportation sector, where they can effectively reduce vehicle weight and better achieve energy savings and emission reductions. Among them, long glass fiber (LGF) reinforced polyamide materials (PA/LGF) are widely used in the man...
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Key Factors to Consider Before Using Fiber-filled Compounds
2024-10-07
In the design process of composite materials, a series of important factors must be considered to ensure the performance, safety, and cost-effectiveness of the final product. These factors include material selection, structural design, manufacturing processes, environmental impact, and cost analysis. This article will discuss these key factors in detail and explain their importance in the design o...
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(Ⅲ) How to deal with flow marks on injection-molded parts?
2024-09-27
Mold temperature too low Cause: The low mold temperature causes the molten plastic to cool too quickly in the runner, preventing full fusion. Solution: Increase the mold temperature to ensure the molten plastic flows smoothly and fuses completely. Injection speed too slow Cause: Slow injection speed causes the plastic to flow slowly, extending cooling time and forming weld lines. Solution: Increas...
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(Ⅱ) How to deal with floating fibers on injection-molded parts?
2024-09-27
Mold temperature too low Cause: If the mold temperature is too low, the melt cools too quickly during flow, causing the glass fibers to not be fully encapsulated by the base resin and float to the surface. Solution: Increase the mold temperature appropriately to ensure the melt has sufficient fluidity to uniformly coat the glass fibers. Regularly check the mold temperature control system to ensure...
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(Ⅰ) How to deal with flow marks on injection-molded parts?
2024-09-27
(1) P: Poor flow of the molten material leads to the formation of concentric flow marks resembling growth rings on the surface of injection-molded parts, centered around the gate. When low-temperature, high-viscosity molten material with poor flow performance is injected into the cavity in a semi-cured, fluctuating state through the injection port and runner, the material flows along the cavity su...
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Why do injection molded parts develop sink marks and dimples?
2024-09-02
(1) Improper control of molding conditions If the injection pressure is too low, the injection and holding time is too short, the injection speed is too slow, the material temperature and mold temperature are too high, the cooling of the plastic part is insufficient, the temperature is too high during demolding, the temperature around the insert is too low, or there is insufficient material supply...
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Intelligent and Lightweight: Carbon Fiber Composites Leading Battery Structural Innovation
2024-09-02
Carbon Fiber Reinforced Polymer (CFRP) occupies a significant position in modern industry due to its exceptional physical and mechanical properties, especially in the fields of aerospace and high-performance automotive applications. With the rapid growth of the electric vehicle (EV) and energy storage system (ESS) markets, the demand for efficient, lightweight battery systems is increasing. - Trad...
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