材料压缩性能稳定性

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1J87精密软磁铁镍合金压缩性能
Sou Hu Cai Jing· 2025-10-04 11:05
Core Insights - The article discusses the performance and processing parameters of 1J87 precision soft magnetic nickel alloy, emphasizing its compression performance and magnetic properties in miniaturized electromagnetic components [1][4]. Group 1: Compression Performance - 1J87 alloy exhibits stable compression forming and magnetic performance, with its compression characteristics significantly influenced by heat treatment and forming processes [1][4]. - Key data for compression performance includes equivalent stress-strain relationships, compression yield strength, density, micro-uniformity, magnetic permeability, and magnetic loss trade-offs [1][4]. - The compression performance and dimensional stability of 1J87 are controlled through annealing temperature, holding time, annealing atmosphere, and forming pressure [1][4]. Group 2: Standards and Compliance - The industry standard framework includes ASTM/ISO for magnetic material testing and AMS for material composition and heat treatment control [3]. - These standards help define the basic framework for sample preparation, magnetic performance characterization, and heat treatment traceability, ensuring repeatability and batch consistency during the design phase [3]. Group 3: Material Selection Misconceptions - Common errors in material selection include focusing solely on a single metric, neglecting the impact of heat treatment on microstructure and compression performance, and prioritizing cost over other critical factors like corrosion resistance and fatigue life [4]. - Mismanagement of these factors can lead to forming failures, increased magnetic loss, or reduced lifespan of the components [4]. Group 4: Market Data and Cost Assessment - Utilizing both domestic and international market data sources aids in forming a comprehensive judgment on costs and supply [5]. - LME data provides global nickel price trends and inventory information, while Shanghai Nonferrous Metals Network offers local spot and smelting cost fluctuations [5]. - A combination of LME and Shanghai Nonferrous Metals Network data allows for a more accurate assessment of material cost fluctuations and their impact on compression processes and finished product pricing [5].