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精密冲压微信号端子系列 | BQUQ工厂

本系列在硬性数据上的表现 这是一系列通过精密冲压生产的微信号端子——适用于连接器、传感器和PCB排针的平面、成型或选择性电镀触点。关键配合面尺寸公差为±0.01 mm,边缘跳动低于0.02 mm,接触区域表面光洁度Ra 0.4 µm。经过选择性热处理后,硬度控制在HRC 38至HRC 42之间,既保证抗回弹性又避免脆性断裂。标准模具修改的交货期为15天;对于现有模具,我们可在7天内发货。这是来自我


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本系列在硬性数据上的表现

这是一系列通过精密冲压生产的微信号端子——适用于连接器、传感器和PCB排针的平面、成型或选择性电镀触点。关键配合面尺寸公差为±0.01 mm,边缘跳动低于0.02 mm,接触区域表面光洁度Ra 0.4 µm。经过选择性热处理后,硬度控制在HRC 38至HRC 42之间,既保证抗回弹性又避免脆性断裂。标准模具修改的交货期为15天;对于现有模具,我们可在7天内发货。这是来自我们东莞工厂的中国制造产品,拥有20年冲压经验,且接受无最小起订量的订单。

为什么微端子需要比标准冲压件更严格的控制

微信号端子承载低电流(0.1–2 A),但对数据完整性要求极高。接触梁上0.05 mm的毛刺即可导致10 Gbps速率下的间歇性信号丢失。我们的冲压工艺采用间隙为材料厚度4–6%的级进模,可消除大多数几何形状的二次去毛刺工序。我们使用测力传感器每100个零件测量一次接触力(0.5 N ± 0.05 N),而不仅仅在模具调试时测量。对于镀金版本,我们仅在配合面按ASTM B488标准镀覆至少0.76 µm金层于1.27 µm镍层之上,与全镀相比可降低成本40%。

我们用于信号完整性的材料与热处理

我们常备C5210R磷青铜(硬态,HV 210–250)、C17200铍铜(时效硬化至HRC 38–42)和301不锈钢(全硬态,HV 480以上)。对于高循环弯折应用,我们推荐C17200,因为其疲劳极限在10^7次循环下为450 MPa——是磷青铜的三倍。热处理在真空炉中进行,温度均匀性±5 °C,随后在-73 °C下进行2小时深冷处理以稳定晶粒结构。这可防止接触电阻在10,000次插拔循环中发生漂移。我们避免使用含铅黄铜,因其不符合RoHS要求且易在弯曲半径处产生微裂纹。

我们如何控制毛刺高度和截面几何形状

毛刺高度是微端子拒收的首要原因。我们的模具维护计划规定每50,000次冲程后进行抛光,并使用200倍放大倍率的数字显微镜测量毛刺。允许的最大毛刺为切割边缘0.03 mm,但我们通常可达到0.015 mm。对于截面几何形状(宽度、厚度、弯曲角度),我们使用激光轮廓扫描仪在线检测带材,每30秒将数据反馈至冲压机。这意味着我们能在刀具磨损产生不合格零件之前就发现并处理——而非事后补救。如果您需要0.1 mm的特定弯曲半径,我们可以控制在±0.02 mm以内,这对RF连接器的阻抗匹配至关重要。

每次发货前的检验:可选100%电气测试

每批产品均经过10项检验流程。我们检查:1) 每个零件5个关键点的尺寸公差,2) 通过X射线荧光法检测镀层厚度,3) 使用显微维氏硬度计检测硬度,4) 毛刺高度,5) 表面光洁度Ra,6) 回弹角度,7) SMT版本的共面度,8) 无铅可焊性测试(245 °C润湿平衡法),9) 盐雾腐蚀测试(至少24小时),以及10) 包装完整性。对于高可靠性应用,我们可使用4线开尔文探针以1 mΩ分辨率进行100%电气连续性测试。这会使交货期增加2天,但可确保您的来料检验零缺陷。我们还提供包含钢厂检测报告在内的完整材质证书,可追溯至原始卷料。

规格参数数值备注
可选材料C5210R、C17200、301不锈钢其他铜合金可定制
厚度范围0.05 – 0.5 mm微型厚度公差±0.005 mm
宽度范围0.3 – 5.0 mm成型宽度最大8 mm
硬度(HRC)38 – 42(C17200时效态)不锈钢:HV 480以上
尺寸公差±0.01 mm关键配合面
表面光洁度Ra0.4 µm接触区域,冲压态
边缘跳动最大0.02 mm每10 mm长度
电镀金0.76 µm / 镍1.27 µm选择性或全镀,ASTM B488
交货期7天(现有模具),15天(新模具)适用于500k件以内数量
最小起订量无最小起订量接受样品订单

小批量与原型试制的模具策略

我们采用模块化级进模,配备可互换镶件。这意味着对于500件的原型试制,您只需支付镶件修改费用,而非整套模具重建。微端子的典型新模具成本为$800–$2,500,具体取决于复杂程度(弯折数量、电镀窗口、侧孔)。我们拥有400多套标准端子外形(如0.5 mm间距、1.27 mm间距、JST PH兼容型)的现有模具库。如果您的图纸与其中一套匹配,则无需模具费且交货期仅7天。对于大批量生产(每月100万件以上),我们改用硬质合金模具,可承受300万次冲程才需修磨,并可在400次/分钟的冲速下运行200吨冲床。

最小起订量(MOQ)是多少?

我们没有最小起订量——订购100件用于验证或1000万件用于生产,均适用相同的质量标准。

能否定制镀层厚度和位置?

可以,我们提供精密掩模选择性电镀,因此您可以仅镀接触尖端或焊脚,金层厚度从0.1至2.5 µm可选。

如何确保原型批次的质量?

原型件与量产件接受相同的10项检验,另附包含CMM数据和关键弯曲区域显微照片的完整尺寸报告。

定制设计的典型交货期是多久?

新模具制作需15天,首件样品18天内发货,现有模具的重复订单在图纸批准后7天内发货。

BQUQ 20年冲压经验应用于您的信号链路

自2004年以来,我们已为汽车、医疗和电信客户生产超过20亿个冲压端子。我们的冲床范围从5吨至200吨,内部模具车间配备12台CNC线切割机和5台平面磨床。这种垂直整合意味着我们控制整个流程——从卷料纵切到最终编带包装。与许多冲压厂不同,我们不外包热处理或电镀。我们的内部真空炉和选择性电镀线确保批次间质量一致。如果您正在设计新连接器,我们的工程师可建议材料和电镀变更以降低成本而不牺牲性能。作为参考,我们的标准端子价格为每件$0.008–$0.05,具体取决于材料和复杂度,年采购量超过500万件可享15%折扣。

对于从事精密装配的工程师,我们建议在设计配合外壳时参考我们的CNC刀具选择指南。如需了解我们的冲压公差与机加工的比较,请参阅我们的CNC加工公差指南。两者均为设置您自身检验标准的实用参考资料。

12小时内获取正式报价

将您的图纸以PDF、DXF或STEP格式发送给我们。我们将评估模具可行性,选择最佳材料,并在12个工作小时内返回包含单价、模具费和交货期的正式报价。我们还提供关于弯曲半径、材料厚度和电镀窗口的免费DFM反馈。对于紧急原型制作,我们可在您批准报价的当天开始切割材料。将图纸发送至sc@bquq.com或通过WhatsApp联系+86 13713157787。我们随时准备为您冲压下一个信号端子。


相关产品

参数

参数能力
材料SPCC、SGCC、SUS301/304/316、黄铜、铜、铍铜、磷青铜
工艺级进模冲压、精冲、深拉深、折弯、攻丝
公差±0.01mm标准,±0.005mm可按要求
表面处理镀锌、镀镍、镀锡、镀金、粉末喷涂、钝化、阳极氧化
模具尺寸最大1200 x 800 mm,16-250吨冲床
厚度0.05 - 6.0 mm板材,线材0.1 - 8.0 mm
打样7-15天模具制作,样品无最小起订量
检测每批次全检报告,CMM和三坐标光学测量

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