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BQUQ 带风扇安装孔的散热器 | 精密CNC加工,中国制造

这是一款CNC加工铝制带风扇安装孔的散热器,专为主动散热组件设计,标准风扇可直接螺栓固定至鳍片堆。我们将孔间公差控制在±0.01 mm,螺纹深度公差控制在±0.05 mm,确保风扇每次安装均平整贴合——无需垫片,无需返工。定制图纸的典型交期为10个工作日,我们采用6061-T6材质,硬质阳极氧化后表面硬度达45 HRC。 为什么风扇孔必须机加工而非冲压 冲压或挤压成型的风扇孔会留下毛刺和椭圆


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这是一款CNC加工铝制带风扇安装孔的散热器,专为主动散热组件设计,标准风扇可直接螺栓固定至鳍片堆。我们将孔间公差控制在±0.01 mm,螺纹深度公差控制在±0.05 mm,确保风扇每次安装均平整贴合——无需垫片,无需返工。定制图纸的典型交期为10个工作日,我们采用6061-T6材质,硬质阳极氧化后表面硬度达45 HRC。

为什么风扇孔必须机加工而非冲压

冲压或挤压成型的风扇孔会留下毛刺和椭圆形状,导致螺钉滑丝或风扇轴线偏移。我们使用4轴CNC铣床加工每个安装孔,而非冲压机。这使得孔位相对底板的真实位置度在0.02 mm以内。对于40 mm风扇,这意味着叶轮与护罩四周保持一致的1.5 mm间隙。您将获得更低的声噪,且不会因偏心安装而产生振动。

真正推动气流的鳍片几何设计

带有粗糙边缘的平直鳍片会削弱气流。我们的标准鳍片间距为2.5 mm,鳍片厚度为1.2 mm,由实心6061-T6坯料加工而成。鳍片尖端跳动度在整个长度上控制在0.05 mm以内。我们还提供铲削鳍片选项(间距可至0.8 mm),适用于高密度LED或IGBT散热场景,在25 mm高度内实现最大表面积。每个鳍片边缘均去毛刺至0.2 mm圆角——无尖锐边角,避免割伤电线绝缘层或手指。

我们使用的材料与热处理工艺

我们常备三种合金,均附带材质证明:6061-T6(屈服强度276 MPa,导热系数167 W/mK)适用于一般用途,6063-T5(导热系数209 W/mK)适用于轻量化外壳,C1100铜(导热系数391 W/mK)适用于高端激光或射频模块。机加工后,我们可进行硬质阳极氧化处理,硬度达25–45 HRC,涂层厚度50 µm——可抵抗海洋或化工厂环境的腐蚀。如需纯热性能且无涂层,我们提供透明铬酸盐处理(MIL-DTL-5541),不增加任何热阻。

我们如何控制平面度与扭矩保持力

如果底板翘曲,导热硅脂间隙会增大,导致IGBT过热。我们在切割前对所有原材料进行去应力处理(350°C热浸泡2小时,然后空冷)。机加工后,我们使用5 µm千分表在花岗岩平板上验证底板平面度——验收标准为100 x 100 mm区域内0.03 mm。对于风扇孔,我们攻丝至6个完整螺纹深度(M3或#6-32),并使用硬化钢螺钉在0.35 Nm扭矩下进行测试。无滑丝,无交叉螺纹,确保您的装配线顺畅运行。

每次发货前的检验流程

每件带风扇安装孔的散热器均经过3步检查。首先,三坐标测量机(CMM)验证孔位和螺距。其次,表面轮廓仪测量底板Ra值——我们以0.8 µm Ra为标准,热界面表面为0.4 µm。第三,我们从每批次中抽取样品,与标准40 mm或60 mm风扇进行干式试装。若风扇无法平整就位,该批次将被拒收。每次发货均附带PDF检验报告,包含实际CMM数据点。

非标准风扇和螺钉的定制孔型

标准风扇使用32 mm、40 mm、50 mm或60 mm孔距。但我们经常加工特殊孔型:43 mm对角孔、用于鼓风机的偏置矩形孔,或用于沉头螺钉的沉孔。告诉我们风扇型号——我们将调取数据表并精确匹配孔型。我们还提供螺纹镶件(黄铜或不锈钢),适用于需要反复拆卸螺钉的塑料外壳。定制孔型无起订量要求,一件原型即可。

全球运输的交期与包装

原型(1–5件)7个工作日内发货。批量生产(50–500件)12–15个工作日内发货。我们使用防静电泡沫托盘,每个散热器有独立槽位——无表面划痕,无鳍片弯曲。超过100件的订单,我们使用带护角的木箱包装,避免托盘损坏。从东莞工厂海运至洛杉矶需18天,空运需4天。所有出口文件(商业发票、装箱单、原产地证明)均包含在内。

参数规格
材料6061-T6、6063-T5、C1100铜
底板厚度3.0 mm至25 mm(可定制)
鳍片高度5 mm至80 mm
鳍片间距1.2 mm(铲削)至4.0 mm(机加工)
表面硬度45 HRC(硬质阳极氧化)或95 HRB(裸材)
孔位公差±0.02 mm真实位置度
螺纹深度公差±0.05 mm
底板平面度0.03 mm / 100 mm
表面光洁度(底板)Ra 0.8 µm(标准),Ra 0.4 µm(热界面)
交期7天(原型),12–15天(批量)
起订量无起订量——一件也可接受

定制带风扇安装孔的散热器起订量是多少?

无起订量——我们接受一件原型用于测试,批量价格仅在100件以上时适用。

你们能否根据数据表匹配现有风扇的孔型?

可以,发送风扇型号或图纸,我们将精确加工孔距、螺纹尺寸和沉孔深度以匹配。

你们如何确保风扇孔在装配过程中不会滑丝?

我们攻丝至完整螺纹深度,并使用钢制螺钉在0.35 Nm扭矩下对每批次进行扭矩测试,同时提供黄铜镶件用于反复拆卸。

你们的典型交期和运输方式是什么?

原型7个工作日内发货,批量12–15天;小批量使用DHL/FedEx空运,大批量使用海运——均提供全程追踪。

关于风扇孔几何设计,请参考CNC刀具选择指南,了解刀具直径如何影响孔边缘质量。在确定底板厚度之前,请查阅CNC加工公差指南——其中解释了为何我们保持±0.01 mm而非较宽松的±0.1 mm标准。

请发送您的风扇图纸或STEP文件。我们将在12小时内回复正式报价——包括关于孔径和螺纹啮合的DFM意见。电子邮件sc@bquq.com或WhatsApp +86 13713157787。可制造性当日反馈,无起订量,中国精密制造。


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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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