Group 1 - The core viewpoint emphasizes the significant advancements in Chongqing's manufacturing sector, particularly in high-end and intelligent manufacturing, driven by technological innovation and government support [1][2][3][4] - In 2024, the sales of Seres electric vehicles are projected to reach 427,000 units, representing a year-on-year increase of 182.8% [1] - Chongqing's industrial added value is expected to grow by 7.3% in 2024, with strategic emerging industries increasing by 12.3%, accounting for 34.6% of the total industrial added value, an increase of 2.4 percentage points from the previous year [1] Group 2 - Chongqing has developed high-strength, impact-resistant glass products, achieving mass production and international performance standards, with over 400 patents filed [2] - The collaboration between Ignition Network and Zongshen has led to a "future factory" that connects over 300 upstream and downstream enterprises, improving supply chain efficiency by nearly 20% and reducing energy consumption by 14% [3] - Chongqing's government has implemented policies to promote green development, including a "per mu" evaluation system that links resource allocation to efficiency, encouraging companies to enhance quality and efficiency [4] Group 3 - By 2027, Chongqing aims to establish over 40 "future factories" and achieve an industrial total output value of 4 trillion yuan, with manufacturing value added accounting for 28% of the regional GDP [4]

如何定义高纯石 揭秘石英界的"大熊猫" 高纯石英砂 在石英界的广袤天地中,高纯石英砂犹 如"大熊猫"般珍稀。其产量稀少,制 备过程更是挑战重重,但在半导体芯 片、太阳能光伏、光纤通信、航空航 天、精密光学和特种玻璃等高新技术产 业中,却扮演着举足轻重的角色,堪称 这些领域的"灵魂材料"。 高纯石英砂:为何如此独特? 高纯石英砂的魅力,源自其卓越的物 理化学性质。其独特的晶体结构、物 理和化学性质,赋予了它耐高温、耐 腐蚀、热膨胀系数小、抗热震性能 好、高度绝缘等"超能力"。更为难 得的是,它还具备压电效应、谐振效 应以及独特的光学特性,这些特性使 得高纯石英砂成为半导体等工业对载 具等加工器件材料中碱金属和重金属 含量要求极为苛刻的理想之选,堪称 天然水晶,因其晶体结构完整、纯度高 而备受青睐。然而，天然水晶的生长条 件苛刻,储量有限,导致原料稀缺,成 本高昂。 对于高纯石英砂的定义,业界尚无统一标 准。但我们可以从多个角度窥见其真容。 国际公认的高纯石英砂要求杂质元素的含 号小干20ppm,其中碱金属更是被严格限 科技界的"全能选手" 制在1ppm以下,而在更高级别的标准 中,则对Fe、Mn、Cr、Ni等1 ...