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精密散热器制造 | BQUQ CNC加工,中国制造

此散热器的功能及参数为何重要 这是一款经CNC加工或冲压成型的散热器,旨在以可预测的速率将热量从您的元件上带走,而非一块装饰性铝块。我们确保基座平面度为0.05mm,表面粗糙度为Ra 0.8,6061-T6材质硬度为HB 90,从而使您的导热界面材料均匀铺展,设备运行温度更低、寿命更长。 我们东莞工厂发货,原型件10天交付,量产件18天交付。翅片间距公差为±0.02mm,基座至翅片轴线的跳动度为0


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此散热器的功能及参数为何重要

这是一款经CNC加工或冲压成型的散热器,旨在以可预测的速率将热量从您的元件上带走,而非一块装饰性铝块。我们确保基座平面度为0.05mm,表面粗糙度为Ra 0.8,6061-T6材质硬度为HB 90,从而使您的导热界面材料均匀铺展,设备运行温度更低、寿命更长。

我们东莞工厂发货,原型件10天交付,量产件18天交付。翅片间距公差为±0.02mm,基座至翅片轴线的跳动度为0.03mm,确保在负载下无翘曲,装配线上无需返工。

这是中国制造的精密加工,背后有20年的行业经验支撑。您并非在廉价挤压件供应商处碰运气,而是在购买能够通过热循环测试的可重复几何精度。

翅片几何形状与气流方向:我们如何切割流道

直翅片适用于强制对流,针翅片适用于自然对流。我们两种均可加工,此外还可加工用于高压降应用的交错条状翅片。

对于标准100x100mm基座,我们可将翅片厚度加工至1.5mm,高宽比达8:1,即12mm高翅片配1.5mm壁厚,公差保持在±0.02mm。低于1.5mm时,我们改用冲压工艺,以避免刀具偏摆和毛刺产生。

每条翅片流道均在10倍放大镜下人工去毛刺。翅片边缘的毛刺会成为热点和颗粒源。我们在阳极氧化前去除毛刺,而非之后。

我们用于导热性能的材料与热处理

我们常备三种散热器材料:6061-T6铝(导热系数167 W/mK)、6063-T5(导热系数201 W/mK)和C1100铜(导热系数398 W/mK)。

铝件经过固溶热处理和人工时效至T6状态,硬度达HB 95。铜件退火至半硬状态,而非全硬,以便在冲压时弯曲而非开裂。

如需镀镍铜基座以实现可焊性,我们可在厂内完成,镀层厚度5微米。镀层厚度公差为±1微米,每批次均进行胶带剥离测试验证附着力。

表面处理与阳极氧化:Ra 0.8仅是起点

机加工态散热器表面粗糙度为Ra 1.6。我们将基座抛光至Ra 0.8,以降低与IGBT或CPU的接触热阻。

翅片部分保留Ra 1.6的机加工表面,因为较粗糙的表面可增加有效对流面积。除非您特别要求装饰性外观,否则我们不抛光翅片。

黑色阳极氧化厚度18微米(MIL-A-8625 Type II标准)。该镀层发射率为0.85,有助于在密封外壳中辐射散热。如需裸露铝接触面,我们可对基座进行遮蔽处理。

每批出货前检测:三坐标测量机与气动量仪数据

每件散热器均经过三坐标测量机(CMM)检测基座平面度和翅片平行度。如有安装孔,我们还使用气动量仪测量孔径。

每批次均提供完整尺寸报告,包括翅片间距、翅片高度、基座厚度和表面粗糙度曲线。您收到的是包含实际测量值的PDF文件,而非简单的合格证书。

对于大批量订单,我们使用通止规检具,每件30秒内完成所有关键尺寸检测。这可在刀具磨损导致批量报废前及时发现问题。

交期与起订量:原型件无最低起订量

无起订量限制。您可以订购一件原型散热器,也可以订购10,000件。单价在500件时显著下降,但我们不会因您先测试而加收费用。

原型件交期为图纸确认后10天。量产交期为5,000件以内18天。冲压散热器模具制作需15天,模具验收后7天发货。

如您急需,我们可在5天内加急交付单件原型,收取30%加急费。这包括CNC加工、去毛刺和DHL快递到门。

安装方式:通孔、螺纹孔和弹簧夹

我们可加工螺钉安装用通孔、螺柱安装用螺纹孔,或安装弹簧夹实现免工具装配。

通孔钻孔公差为H7级,即4mm孔公差为+0.012mm / -0.000mm。螺纹孔采用挤压丝锥加工,因金属被压缩而非切除,螺纹强度高于切削丝锥。

对于弹簧夹,我们使用厂内冲压设备制造不锈钢夹片,可卡入散热器基座。这完全省去螺钉,装配时间缩短约40%。

参数数值
可用材料6061-T6, 6063-T5, C1100铜
基座平面度0.05mm
翅片厚度最小1.5mm(CNC),最小0.8mm(冲压)
翅片间距公差±0.02mm
表面粗糙度(基座)Ra 0.8
表面粗糙度(翅片)Ra 1.6
硬度(铝)HB 90-95
硬度(铜)半硬,HV 80-100
阳极氧化厚度18微米,Type II
跳动度(基座至翅片轴线)0.03mm
原型交期10天
量产交期18天
起订量
最大零件尺寸600mm x 400mm x 150mm

FAQ:散热器订购与工程问题

定制散热器真的没有起订量吗?

是的,我们接受单件原型订单,且首件不收取额外设置费。

能否匹配竞争对手的现有散热器设计?

可以,将零件或图纸发给我们,我们将逆向工程几何形状,并在可能的情况下建议更经济的制造方法。

每批出货附带哪些质量控制数据?

您将收到CMM报告、表面粗糙度曲线、材质证书以及发货前首件照片。

获取报价和收到零件需要多长时间?

正式报价在12小时内提供,原型件10天发货,量产件在您确认后18天发货。

降本方案:冲压与CNC加工对比

如果您的散热器月产量超过2,000件,我们通常可将工艺从CNC加工改为冲压,单件成本降低40-50%。

冲压散热器使用级进模从平板材料成型翅片。模具费用为$3,000-$8,000,但单件价格降至$0.50-$2.00,视尺寸而定。

我们还可将冲压基座与CNC加工翅片结合,采用混合设计,在关键部位获得机加工精度,在其他部位享受冲压的低成本。

在最终确定设计前,请查阅我们的CNC刀具选择指南,了解刀具几何形状如何影响翅片表面质量。另请参阅我们的CNC加工公差指南,确定哪些尺寸需要严格管控,哪些可以放宽以节省成本。

立即发送您的图纸,12小时内获得正式报价。邮件至sc@bquq.com或WhatsApp +86 13713157787。我们将在您付款前审核您的热预算、推荐材料并确认交期。


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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