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精密电脑散热器制造商 | BQUQ 中国CNC加工

此电脑散热器为CNC加工铝或铜组件,旨在以200–400 W/m·K的导热率(取决于材料等级)将热量从CPU、GPU和电源模块中导出。底座平面度控制在0.02 mm以内,表面光洁度达Ra 1.6 μm,确保导热界面材料(TIM)层薄且均匀。原型交期7天,批量生产交期15天,硬度选项最高可达HRC 45(阳极氧化铝等级)。 我们的CNC加工如何控制翅片几何形状与平面度 当底座翘曲或翅片不平时,热传


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此电脑散热器为CNC加工铝或铜组件,旨在以200–400 W/m·K的导热率(取决于材料等级)将热量从CPU、GPU和电源模块中导出。底座平面度控制在0.02 mm以内,表面光洁度达Ra 1.6 μm,确保导热界面材料(TIM)层薄且均匀。原型交期7天,批量生产交期15天,硬度选项最高可达HRC 45(阳极氧化铝等级)。

我们的CNC加工如何控制翅片几何形状与平面度

当底座翘曲或翅片不平时,热传递会失效。我们使用3轴和5轴CNC铣床,定位精度为±0.005 mm。底座采用单次飞刀切削,在100 mm见方面积上平面度控制在0.02 mm以下。翅片厚度可低至0.8 mm,高厚比达20:1。每块底座在发货前均使用三坐标测量机(CMM)进行检测,平面度超过0.025 mm的产品一律拒收。此零件非冲压件,而是由实心棒料加工而成,因此无拔模斜度或毛刺。

我们用于热性能的材料与热处理

我们常备6061-T6和6063-T5铝材,适用于重量敏感型设计;C11000铜材,适用于高端液冷块。对于铝材,我们提供硬质阳极氧化(MIL-A-8625 Type III),厚度25–50微米,表面硬度提升至HRC 45,且不增加热阻,同时防止腐蚀。铜件镀镍(5–10微米)以防氧化。若您的应用需要螺纹嵌件或弹簧夹,我们可添加不锈钢嵌件(303或304),最小拔出力为300 N。除非您明确要求,否则我们绝不使用回收坯料——仅采用原生材料,并随零件附带材料质保书。

每次发货前的检测:CMM与泄漏测试

每件电脑散热器在离开东莞前均经过全面尺寸检测。我们使用蔡司CMM检测平面度、垂直度和孔位。表面粗糙度通过Mitutoyo轮廓仪验证——底座保持Ra 1.6 μm,翅片边缘Ra 3.2 μm。对于液冷板,我们进行0.5 MPa水下气密性测试;任何气泡即视为不合格。我们还为每件零件拍摄带比例尺的照片,并在批次完成后24小时内发送PDF检测报告。如需材料认证,我们随发票一并提供,不另收费。

实际提升气流的翅片密度与纵横比

对于被动散热,需要更大的表面积。我们加工的翅片最薄0.8 mm,间距2.5 mm,每英寸最多12片翅片。对于带风扇的主动散热,我们建议翅片高度20–40 mm,间隙1.5–2 mm,以最小化气流阻力。我们的5轴机床可加工倾斜或交错翅片图案,与直翅片相比,对流传热效率提升15–20%(经内部风洞实测)。我们还可添加热管槽——宽6 mm、深3 mm的半圆通道,可压配Ø6 mm铜热管,配合公差为H7/p6。

用于TIM粘附与耐腐蚀性的表面处理选项

底座表面处理决定导热膏或相变材料对表面的润湿性。我们提供三种标准表面处理:机加工态(Ra 1.6 μm)、喷砂(Ra 3.2 μm,适用于粘接)、研磨(Ra 0.8 μm,适用于直接芯片接触)。对于户外或工业环境,我们提供符合ASTM B921的透明阳极氧化或黑色阳极氧化。如需特定标志或零件编号,我们采用激光雕刻,深度0.05 mm——无油墨、不脱落,经500小时盐雾测试后仍清晰可读。

交期与最小起订量:原型7天,无最小起订量

我们采用无纸化车间和自动化刀具预调,装夹时间缩短40%。单个原型电脑散热器交期为7个日历日。批量生产100–5,000件,交期15–20天。我们的最小起订量为零——可订购一件用于测试。标准设计不收取模具费;定制夹具费用为$150–$400,首次订购500件时全额退还。从东莞到美国西海岸,空运5天,海运25天。每次询价我们均提供两种运输报价。

规格数值/范围备注
材料6061-T6, 6063-T5, C11000铜原生坯料,含材料质保书
底座厚度3 mm – 20 mm单次飞刀切削
翅片厚度0.8 mm – 3 mm最大纵横比20:1
翅片间距2.5 mm – 5 mm每英寸最多12片
硬度(铝)HRC 45(硬质阳极氧化)MIL-A-8625 Type III
平面度(底座)≤ 0.02 mmCMM测量
表面光洁度(底座)Ra 0.8 – 1.6 μm可选研磨
孔位公差±0.01 mm按ISO 5458位置度
交期(原型)7天1–10件
交期(批量)15–20天100–5,000件
最小起订量接受单件订购

选择合适的刀具路径对薄翅片至关重要。如果您正在设计新零件,请阅读我们的CNC刀具选择指南,了解刃数和螺旋角如何影响翅片变形。同时,请参阅我们的CNC加工公差指南,确保您的图纸标注可实现的范围——这能避免为不必要的精度买单。

电脑散热器的最小起订量是多少?

无最小起订量——我们接受单件原型验证,批量价格从100件起。

能否定制翅片图案或底座形状以适应我现有的外壳?

可以,我们可根据您的3D文件(STEP或IGES)加工任意形状,包括斜翅片、阶梯底座和集成安装凸台。

对于平面度要求严格的散热器,你们如何保证质量?

我们使用蔡司CMM对平面度和孔位进行100%检测,并随每次发货提供PDF检测报告。

多久能获得报价和生产样品?

发送您的图纸(PDF或STEP),我们将在12小时内返回固定报价;样品7天内通过快递寄出。

立即发送您的图纸,12小时内获取固定报价。邮箱sc@bquq.com或WhatsApp +86 13713157787。我们在一个工作小时内回复,周末也不例外。


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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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