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BQUQ 均温板散热器 | 精密CNC散热器制造商

这是一款专为高热密度电子设备设计的均温板散热器,适用于实心铜底座无法快速传导热量的场景。我们将铜外壳加工至安装面平面度0.05 mm,每件产品均经过1.2 atm压力测试,并在15天内从东莞工厂发货。您将获得一款被动散热组件,可将热量从5x5 mm CPU芯片传导至120x120 mm鳍片阵列,热阻仅为0.08 °C/W。 我们如何制造无泄漏的密封铜腔体 均温板并非简单的铣削凹腔。我们采


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这是一款专为高热密度电子设备设计的均温板散热器,适用于实心铜底座无法快速传导热量的场景。我们将铜外壳加工至安装面平面度0.05 mm,每件产品均经过1.2 atm压力测试,并在15天内从东莞工厂发货。您将获得一款被动散热组件,可将热量从5x5 mm CPU芯片传导至120x120 mm鳍片阵列,热阻仅为0.08 °C/W。

我们如何制造无泄漏的密封铜腔体

均温板并非简单的铣削凹腔。我们采用C1100无氧铜,分别加工上板和下板,然后在780 °C真空炉中钎焊密封。内部毛细结构——孔隙率40%的烧结铜粉——在密封前施加。每个腔体均通过质谱仪进行氦泄漏测试,拒收阈值为1x10⁻⁹ mbar·L/s。经过-40 °C至125 °C的5,000次热循环后,您不会看到渗漏或干涸现象。

平面度与共面性:确保导热界面材料发挥效用

如果散热器底座翘曲超过0.05 mm,您的导热膏或相变垫片将变成隔热层。我们将底座平面度控制在0.05 mm,底座与鳍片尖端之间的共面性在120 mm全长范围内控制在0.15 mm。这是通过在最终铣削前对每块毛坯进行300 °C、2小时去应力处理,然后使用三轴CNC上的金刚石飞刀以10,000 RPM转速、0.02 mm切削深度加工实现的。

我们提供的耐腐蚀材料与表面处理

标准配置为裸铜腔体搭配镀镍鳍片组(化学镀镍,厚度8 µm,符合ASTM B733标准)。如果您的使用环境存在盐雾或高湿度,我们提供透明阳极氧化铝鳍片组,均温板嵌入铜底座中——混合设计。安装面表面粗糙度为Ra 0.8 µm,足够光滑,可直接接触芯片而无需研磨。如需更低热阻,我们可抛光至Ra 0.4 µm,但交期将增加2天。

鳍片阵列与安装孔的CNC加工公差

鳍片厚度为0.8 mm ± 0.05 mm,鳍片间距为2.5 mm ± 0.1 mm。安装孔位置公差控制在± 0.02 mm真实位置,确保您的弹簧螺钉或螺柱无需应力即可对齐。我们使用带刀库的四轴CNC铣床;我们博客上的CNC切削刀具选择指南详细说明了为何我们选择带0.2 mm圆角半径的硬质合金立铣刀进行鳍片切削。

每次发货前的检测:三坐标测量与热测试数据

每批均温板散热器均使用蔡司三坐标测量机检测平面度、孔位和整体尺寸。我们还从每50件中抽取1件样品,使用100W陶瓷加热器和热电偶阵列进行热阻测试。您将在发货时收到三坐标检测报告和热测试曲线,无需额外费用。如果您需要100%泄漏测试认证,我们也可以提供,但会增加3天时间和5%成本。

为什么我们的15天交期适用于原型和小批量生产

我们常备8 mm、10 mm和12 mm厚度的C1100铜板,以及6061-T6铝鳍片材料。由于我们是垂直整合工厂(CNC加工、冲压、钎焊和电镀在同一栋建筑内完成),我们省去了分包商之间的物流延误。单个原型15天发货;500件批量生产25天发货。我们的CNC加工公差指南解释了如何在无检测捷径的情况下保持这些数据的可重复性。

规格参数数值
底座材料C1100无氧铜(可选C1020)
鳍片材料6061-T6铝或C1100铜
底座平面度0.05 mm(最大)
表面粗糙度(安装面)标准Ra 0.8 µm,可选Ra 0.4 µm
泄漏率1x10⁻⁹ mbar·L/s(氦气)
耐压能力1.2 atm(内部)
工作温度-40 °C至125 °C
安装孔真实位置± 0.02 mm
交期(原型)15天
起订量无起订量(接受1件)

均温板散热器的最小起订量是多少?

我们接受1件原型订单——无起订量——并可扩展至数千件批量生产,工艺不变。

能否定制均温板形状和毛细结构?

可以,我们可加工20x20 mm至200x200 mm的定制外形,并根据您的热通量和安装方向将毛细孔隙率从30%调整至50%。

你们如何证明散热器满足热性能规格?

我们对每批样品进行100W热阻测试,并将实测曲线随三坐标检测报告一并提供。

如果需要修改设计,交期是多久?

简单的孔位变更增加2天;新的腔体几何形状增加7天用于刀具路径和夹具设置,但首件仍可在15天内发货。

请发送您的图纸,我们将在12小时内提供正式报价。邮箱sc@bquq.com或WhatsApp +86 13713157787。我们将审核您的热预算,确认平面度要求,并给出固定价格——无起订量,精密制造,中国制造。


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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