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BQUQ精密金属散热器 | CNC加工,中国制造

这是一款CNC加工的金属散热器,专为高功率电子设备、功率模块和激光二极管的有源及无源冷却而设计。我们确保安装表面的平面度为0.02mm,表面光洁度为Ra 0.8µm,直线度公差为每100mm ±0.01mm——所有指标均在发货前经过验证。标准铝合金交期为15天,对于需要结构刚性的钢基散热器,我们可达到63 HRC的硬度。 为什么平面度和表面光洁度决定您的热结温 IGBT与散热器之间每0.05mm


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这是一款CNC加工的金属散热器,专为高功率电子设备、功率模块和激光二极管的有源及无源冷却而设计。我们确保安装表面的平面度为0.02mm,表面光洁度为Ra 0.8µm,直线度公差为每100mm ±0.01mm——所有指标均在发货前经过验证。标准铝合金交期为15天,对于需要结构刚性的钢基散热器,我们可达到63 HRC的硬度。

为什么平面度和表面光洁度决定您的热结温

IGBT与散热器之间每0.05mm的气隙会增加约0.5°C/W的热阻。我们的CNC铣削和飞刀加工工艺将基座平面度控制在0.02mm,因此您无需使用厚度超过0.05mm的导热膏。我们使用三坐标测量机(CMM)和轮廓仪测量每个表面。结果:为您的200W至2kW热负荷提供可预测的热路径。

铝6061-T6、5052或铜C1100——我们的日常加工材料

我们常备6061-T6,其屈服强度为276 MPa,导热系数为167 W/m·K。如需更高导热性,我们使用C1100铜,导热系数为391 W/m·K,但对于重量敏感的设计,我们推荐阳极氧化铝。所有原材料均附带钢厂证书。在切割前,我们会剔除任何存在内部气孔或晶粒结构不一致的板材。

参数数值备注
可用材料铝6061-T6、5052、7075;铜C1100;黄铜H59可定制合金,需另行咨询
基板厚度3mm至25mm用于安装表面
翅片高度10mm至80mm高宽比最高可达20:1
翅片厚度1.0mm至3.0mm小间距时最小0.8mm
硬度(铝6061-T6)95 HRB(约相当于45 HRC)按回火状态
硬度(钢制选项)63 HRC用于结构安装件
平面度公差200mm x 200mm范围内0.02mm依据CMM检测
表面光洁度基座Ra 0.8µm;翅片Ra 1.6µm标准飞刀加工
跳动(孔对基座)≤ 0.05mm用于安装孔位
交期15天(铝),20天(铜)适用于5000件以内
最小起订量无最小起订量接受1件打样

翅片、针翅和刨削几何——我们如何实现无毛刺加工

我们使用3轴和5轴CNC铣削中心生产直翅片、针翅片或燕尾槽。对于间距小于2.5mm的翅片,我们改用定制锯片刀具,以减少毛刺形成。加工后,每件产品经过30分钟滚磨处理,去除装配线上可能发现的微毛刺。我们还提供刨削工艺,可加工薄至0.8mm的翅片,比挤压工艺多出30%的表面积。

每次发货前的检测——CMM、气动量仪和泄漏测试

每批次产品均经过3点检查。首先,CMM测量关键安装孔和基座平面度。其次,气动量仪验证孔径至±0.01mm。第三,对于液冷版本,我们进行0.6 MPa的水下气密性测试。每次发货时附送PDF检测报告。如有零件不合格,我们会在车间直接报废——绝不会让问题流入您的来料检验环节。

阳极氧化、镀镍或钝化——您的防腐和绝缘选项

我们为铝材提供Class 2黑色阳极氧化(厚度18–20 µm),介电强度最高可达800V。对于铜材,我们提供化学镀镍,防止高湿度环境下氧化。如果您需要裸露表面以获得最大导热性,我们会使用VCI防锈纸和密封塑料袋包装发货。未经您的书面批准,我们不会施加任何涂层。

我们如何处理您的打样——从1件到5000件,无最小起订量

发送STEP或IGES文件,我们将在24小时内生成DFM报告。对于单件打样,我们使用与量产相同的CNC程序,确保几何形状完全一致。标准形状不收取模具费。仅当您需要新的刨削刀片或定制夹具时,我们才会收取一次性费用$200–$800,订单超过500件后此费用将予以免除。

最小起订量是多少?

我们实行无最小起订量政策——您可以订购1件进行测试,单价仅比1000件时高15%。

能否根据我的特定气流方向定制翅片图案?

可以,我们根据您的CFD数据加工任何翅片图案——直翅、针翅或错列翅,并会根据您的风扇曲线建议翅片间距。

你们如何保证安装表面的平面度?

我们在花岗岩平台上使用千分表在9个点测量平面度,并在发货前提供CMM报告。

铜散热器打样的交期是多久?

铜打样需要20天,因为加工时间更长且需要额外的去毛刺工序,但加收10%费用可加急至12天。

材料选择指南——发送图纸前请阅读

如果您不确定使用6061-T6还是铜,请参阅我们的CNC刀具选择指南,了解可加工性和刀具磨损方面的建议。关于公差决策,请阅读我们的CNC加工公差指南,了解在不增加成本的前提下可实现的范围。这两份指南均由我们的车间工程师撰写,而非市场人员。

我们是一家位于中国东莞的精密制造工厂,拥有20年CNC加工、冲压和弹簧制造经验。我们的散热器已出口至14个国家,应用于电动汽车充电器、医疗激光器和工业逆变器。我们的流程简单明了:您发送图纸,我们在12小时内报价,并附上完整检测数据发货。

发送您的图纸,12小时内获得正式报价。邮件至sc@bquq.com或WhatsApp +86 13713157787。请在主题栏注明“Metal Heat Sink”,我们将优先处理您的DFM审核。


相关产品

参数

参数能力
材料AL6063/6061/5052,纯铜C1100,铜铝复合
工艺挤压、CNC加工、铲齿、锻造、压铸、冲压翅片
翅片类型挤压翅片、针翅、铲齿翅片、折叠翅片、粘合翅片、热管、均温板
表面处理黑色阳极氧化、本色阳极氧化、镀镍、粉末喷涂
尺寸范围最大1500 x 400 x 300 mm
热测试每批次提供热阻和散热数据
打样5-7天,样品无最小起订量
检验三坐标测量仪、热阻测试仪,每批次提供完整报告

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