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Injection Molding Defects and Solutions -- Sink marks
2025-10-11
Sink Marks (Depressions) Surface dents or depressions appear on molded parts. This defect occurs when the molten resin shrinks in volume during cooling and solidification but is not sufficiently compensated by additional material. It often appears on the backside of thick sections or behind ribs. Causes (2.1) Solutions (2.2) 2.1.1 Runner or gate too small, or insufficient number of gates. 2.2.1 Im...
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Injection Molding Defects and Solutions -- Incomplete filling
2025-10-11
Short shot / Incomplete filling The molten resin cannot completely fill the mold cavity. Causes (1.1) Solutions (1.2) 1.1.1 Injection volume insufficient; not enough material added. 1.2.1 Increase the material feed. 1.1.2 Inadequate plasticizing capacity or insufficient residual material. 1.2.2 Replace the machine or adjust process parameters to increase residual material. 1.1.3 Plastic particle s...
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Customer Project: PA12-LCF40 Solution for Wire Rope End Fitting
2025-09-17
Customer Project: PA12-LCF40 Solution for Wire Rope End Fitting body { font-family: 'Inter', sans-serif; line-height: 1.6; color: #333; background-color: #fff; margin: 0; padding: 0; } .container { max-width: 900px; margin: auto; padding: 20px; } h1, h2, h3 { color: #00924f; transition: all 0.3s ease; } h1:hover, h2:hover, h3:hover { color: #006f3b; transform: translateY(-3px); } p { margin-bottom...
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A Quick Guide to the Power of Glass Fiber Reinforcement
2025-09-15
When you pick up your phone, take apart an auto part, or look at a home appliance casing, you might not realize that hidden inside these seemingly ordinary plastic products lies a kind of “invisible rebar” — glass fiber (GF). From PP + 20% GF to PA + 60% GF, these reinforcing fibers quietly support the plastic matrix, much like steel bars inside concrete. Today, let’s uncover the mystery of long g...
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Carbon Fiber Composite Applications for Automotive Lightweighting
2025-09-02
With global climate warming and the increasing depletion of fossil fuel resources, promoting green energy and sustainable development has become a global consensus. As a product of modern industrial civilization, the automotive industry is facing unprecedented pressure to save energy and reduce emissions, making vehicle lightweighting an important approach to address these challenges. Among variou...
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Composite Joining Methods: Types and Key Considerations
2025-09-01
Overview Composite joining technology is a critical yet relatively weak link in the design and manufacturing of composite structures. Due to the anisotropy, brittleness, and low interlaminar strength of composites, their joining design differs significantly from metallic structures and requires special attention. The main joining methods can be categorized into three groups: 1. Mechanical Joining ...
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Composite Material Repair: Process, Methods, and Key Points
2025-09-01
Overview Composite material repair refers to the technology of restoring the mechanical properties, structural integrity, and functional performance of composite components (such as carbon fiber reinforced composites and glass fiber reinforced composites) that have been damaged during use or processing (e.g., cracks, delamination, holes, wear). With advantages such as high specific strength and ex...
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How Much Glass Fiber is Needed to Make Polypropylene Truly Fire-Resistant?
2025-08-29
In modern industrial fields, glass fiber reinforced polypropylene (PP/GF), with its low density, excellent heat and creep resistance, and high cost-performance ratio, has become a “rising star” in industries such as electronics, aerospace, and automotive manufacturing. This material is often used to produce lightweight and thin-walled components as a substitute for steel and conventional engineeri...
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Customer Project: PA12 filled Long Carbon Fiber in Bike Bottle Cage
2025-08-27
Application Background The bicycle bottle cage may look like a small accessory, but it plays an essential role. It needs to securely hold a bottle in place on rough roads, withstand outdoor exposure to rain, temperature shifts, and UV, while still allowing smooth insertion and removal. At the same time, riders expect it to be lightweight, durable, and visually aligned with the premium image of mod...
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