技术文章

导热膏由什么制成,以及应该涂抹多少?
导热膏由什么制成,以及应该涂抹多少?

导热膏,又称导热界面材料(TIM),是一种导热化合物,用于填充CPU/GPU芯片与其散热器之间的微观空气间隙。它主要由聚合物基体(硅酮、丙烯酸或环氧树脂)填充陶瓷、金属或碳基颗粒制成。最佳涂抹量为豌豆大小的一滴(约0.05至0.1立方厘米),置于集成散热器(IHS)中心,安装后粘合层厚度为0.05至0.1毫米。材料成分...

为定制弹簧选择最佳材料:精密工程指南
为定制弹簧选择最佳材料:精密工程指南

定制弹簧的最佳材料取决于工作温度、疲劳寿命要求和耐腐蚀性,但对于90%的一般工业应用而言,音乐钢丝(ASTM A228)或油淬铬硅钢(ASTM A401)具有最佳的强度成本比。对于超过150°C的高温或腐蚀性环境,您必须改用不锈钢(17-7PH)或Inconel X750。本指南提供具体数据和制造限制,帮助您为下一批生...

弹簧规格标准:工程师的ASTM、SMI和JIS参考指南
弹簧规格标准:工程师的ASTM、SMI和JIS参考指南

在精密制造中指定弹簧时,在ASTM、SMI和JIS标准之间进行选择,将直接决定尺寸公差、材料牌号和验收测试规程。ASTM(美国材料与试验协会)管理材料化学成分和机械性能,SMI(弹簧制造商协会)提供螺旋弹簧的设计和公差指南,而JIS(日本工业标准)则定义了基于公制的制造和检验标准。以典型的压缩弹簧为例,ASTM A22...

如何订购定制弹簧:您必须提供的精确规格
如何订购定制弹簧:您必须提供的精确规格

在没有完整规格的情况下订购定制弹簧,是导致零件在现场失效或无法装配的最快途径。要正确订购定制弹簧,您至少必须提供:线径、外径、自由长度、有效圈数、材料牌号和端部类型。缺少这六个参数中的任何一个,都将导致弹簧无法制造或无法满足您的载荷要求。关键尺寸与公差第一组规格定义了弹簧的物理几何形状。这些尺寸必须给出公差范围,而不仅...

Spring End Grinding Techniques and Specifications for Precision Manufacturing
Spring End Grinding Techniques and Specifications for Precision Manufacturing

弹簧端面磨削是一种关键的精加工工艺,用于确保压缩弹簧的承压端面平整、平行且垂直于弹簧轴线。对于大多数应用场景,磨削后的弹簧端面可实现0.002至0.005英寸(0.05至0.13毫米)的平面度和1至2度的垂直度,而未磨削的端面偏差可能超过5度。本文详细介绍了决定何时以及如何有效磨削弹簧端面的具体技术、公差和成本因素。#...


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