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BQUQ铜质螺旋天线弹簧系列 | 精密CNC定制线圈

这是BQUQ的铜质螺旋天线弹簧系列——一组精密加工的铜基螺旋线圈,专为射频天线、5G模块和物联网设备设计。我们提供一致的螺距精度±0.01 mm,表面光洁度Ra 0.4,硬度范围80–100 HRB(适用于铜合金),从图纸确认后最快15天交付。 为什么螺距精度和表面光洁度决定您天线的增益 天线弹簧不是机械零件——它们是线圈形式的电路。0.05 mm的螺距误差会使谐振频率偏移数MHz。我们的CNC


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这是BQUQ的铜质螺旋天线弹簧系列——一组精密加工的铜基螺旋线圈,专为射频天线、5G模块和物联网设备设计。我们提供一致的螺距精度±0.01 mm,表面光洁度Ra 0.4,硬度范围80–100 HRB(适用于铜合金),从图纸确认后最快15天交付。

为什么螺距精度和表面光洁度决定您天线的增益

天线弹簧不是机械零件——它们是线圈形式的电路。0.05 mm的螺距误差会使谐振频率偏移数MHz。我们的CNC卷簧机将螺距公差控制在±0.01 mm,每10圈总跳动量低于0.05 mm。Ra 0.4的表面光洁度可减少2.4 GHz及以上频率的趋肤效应损耗。这是精密制造,不是冲压。

我们用于射频导电性的材料和热处理

我们备有六种铜合金。C11000(ETP铜)用于最大导电率(101% IACS)。C17200(铍铜)用于回弹性和疲劳寿命——热处理至38–42 HRC。C52100(磷青铜)用于船用天线的耐腐蚀性。C36000(易切削黄铜)用于螺纹底座。C10200(无氧铜)用于低损耗射频。C14500(碲铜)用于高速加工。我们还提供镀银铜(5 µm),表面导电率可达105% IACS。

我们如何控制长螺旋体的跳动量和线圈直径

长螺旋弹簧(长度超过20 mm)容易发生侧向弯曲。我们的CNC弹簧机采用芯棒导向卷绕工艺——线材缠绕在精密研磨的硬质合金芯棒上,跳动量为0.003 mm。卷绕后,每个弹簧在250°C真空炉中应力消除30分钟。这消除了导致后续变形的内应力。我们使用激光测微计沿长度方向在五个点测量线圈外径。最大偏差为标称外径的0.02 mm。

每次发货前全检——不仅仅是抽样

您订单中的每个弹簧都经过检查,而不仅仅是每批抽一件。我们使用2D光学比较仪测量螺距和线径。数字测力计在20%、50%和80%挠度下测试弹簧刚度。维氏硬度计验证铍铜的HRC。LCR表在100 MHz下测量电感。对镀层样品进行盐雾测试。每次发货均附完整尺寸报告。

规格数值/范围
线径0.2 mm – 5.0 mm
线圈外径2.0 mm – 50 mm
自由长度3 mm – 200 mm
螺距公差±0.01 mm
总跳动量(每10圈)≤ 0.05 mm
表面光洁度Ra 0.4 µm(卷绕态)/ Ra 0.2 µm(抛光态)
硬度(C17200铍铜)38 – 42 HRC
硬度(C11000铜)80 – 90 HRB
电感公差±2% @ 100 MHz
交期(图纸确认后)15天(原型),25天(量产)
起订量无起订量——可订1件或100,000件

针对您的射频调谐循环的原型和迭代

射频工程师通常需要在首次谐振测试后更改线径或螺距。我们在5天内提供原型。您在网络分析仪上测试。您将S11图发送给我们。我们在CNC程序中调整弹簧几何形状——大多数更改无需新工装。如果更改在相同线径范围内,您的第二个原型免费。这就是我们加速您产品周期的方式。

为什么高频应用不应使用冲压或成型弹簧

冲压铜弹簧有毛刺和微裂纹,会产生寄生电容。成型弹簧(弯线)因依赖手动设置而螺距不一致。我们的CNC卷绕弹簧具有光滑、连续的晶粒流向——无应力集中点。在5 GHz下,0.05 mm的毛刺可导致5%的阻抗失配。我们的工艺消除了这一问题。如果您正在设计5G毫米波或卫星链路,这就是工作天线和废铁之间的区别。

改变射频性能的表面处理选项

我们提供四种表面处理。裸铜(Ra 0.4)——用于焊接连接,会轻微氧化。镀银(5 µm)——提高导电性和可焊性,最适合大功率射频。镀镍(3 µm)——用于户外外壳的耐腐蚀性。镀金(0.5 µm)——用于基站滤波器的低互调失真。我们在卷绕后施加镀层,以避免涂层开裂。每批镀层产品均经过24小时湿度浸泡测试。

铜质螺旋天线弹簧系列的最小起订量是多少?

我们无起订量——您可以订购单个原型弹簧或100,000件的完整量产订单,单价相应调整。

您能否针对我的特定天线设计定制线径、螺距和镀层?

可以——图纸上的每个尺寸均可完全定制,我们可以在48小时内调整任何参数(线材类型、圈数、螺距、镀层)用于原型制作。

您如何确保大批量订单的质量一致性?

我们对每件产品进行100%光学检查螺距和外径,并对每500件批次进行硬度和电感的SPC监控。

10,000件弹簧量产订单的实际交期是多少?

10,000件量产需18–20个工作日(图纸确认后),包括镀层和全检——无隐藏延误。

在您最终确定弹簧设计之前,请查阅我们的CNC刀具选择指南了解线材材料选择,以及我们的CNC加工公差指南进行堆叠分析。这些资源解释了我们的公差如何与您的配合零件相互作用。

我们是中国东莞的一家精密制造工厂,拥有20年CNC和弹簧经验。中国制造并不意味着妥协——我们的弹簧用于医疗遥测和航空航天射频模块。

12小时内获得确定报价。将您的图纸发送至sc@bquq.com或WhatsApp +86 13713157787。我们将返回DFM审查和按您所需数量的单价——无起订量,无义务。


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参数

参数能力
材料SUS302/304/316、SWC琴钢丝、SWP音乐钢丝、65Mn、磷青铜、铍铜
类型压缩弹簧、拉伸弹簧、扭簧、线成型件、电池弹簧、触片弹簧
线径0.05 - 12.0 mm
公差±0.02mm标准,±0.01mm可按要求提供
表面处理镀锌、镀镍、发黑、钝化、喷丸
设备CNC弹簧卷制机、扭簧机、线材成型机
打样72小时,样品无最小起订量
检测每批负载测试,疲劳测试数据可按要求提供

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