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BQUQ 中国东莞五金冲压件制造商 弹片精密加工

弹片冲压件在您的组件中的实际作用 弹片(也称为接触弹簧或弹簧夹)是一种薄金属冲压件,在连接器、开关、电池座和汽车继电器中提供电接触、机械保持或接地力。我们在东莞制造这些产品,关键尺寸公差为±0.01 mm,平面度在0.05 mm以内,表面光洁度可达Ra 0.8 µm。您获得的零件在10,000次插拔循环中保持一致的接触力,我们可在7天内交付标准模具样品。 我们如何控制高强度弹片合金的回弹 大多


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弹片冲压件在您的组件中的实际作用

弹片(也称为接触弹簧或弹簧夹)是一种薄金属冲压件,在连接器、开关、电池座和汽车继电器中提供电接触、机械保持或接地力。我们在东莞制造这些产品,关键尺寸公差为±0.01 mm,平面度在0.05 mm以内,表面光洁度可达Ra 0.8 µm。您获得的零件在10,000次插拔循环中保持一致的接触力,我们可在7天内交付标准模具样品。

我们如何控制高强度弹片合金的回弹

大多数弹片失效源于成型后不可预测的回弹。我们的冲压操作员采用三步补偿法:首先,在CAD中模拟折弯角度;其次,在110吨高速冲床上运行试制料带;第三,以0.02 mm的增量调整模具圆角半径,直到释放后的角度与您的图纸匹配。对于铍铜和301不锈钢,我们使用精压模具,将10,000件批次中的回弹变化降低至±0.5度。

所有冲压作业均在我们6,500平方米的东莞工厂进行,配备25台冲床,吨位从25吨到250吨不等。对于简单弹片,我们以每分钟400次冲程运行级进模;对于共面度要求严格的零件,则使用复合模。所有模具均为内部制造,因此我们可在48小时内修改一个特征,无需等待海外模具车间。

我们用于接触力持久性的材料和热处理

弹片需要兼具弹性和耐磨性。我们常备四种主要材料:C5210磷青铜(硬度180–220 HV)、C17200铍铜(热处理至36–42 HRC)、SUS301不锈钢(全硬态,420–480 HV)和65Mn弹簧钢(油淬至44–48 HRC)。对于高循环应用,我们采用选择性热处理,仅对接触鼻部进行感应淬火,保持弹簧基体部分具有延展性。

如果您的弹片承载电流,我们会增加预镀步骤:镍底层1–3 µm,然后在接触区域闪镀金0.1–0.3 µm。这可以防止电偶腐蚀,并在100 gf力下保持接触电阻低于20 mΩ。我们还生产过用于高频射频接地的镀银弹片,每批次均通过X射线荧光检测镀层厚度。

我们根据您的图纸报价的典型弹片规格

参数数值范围
材料厚度0.08 – 2.5 mm
零件尺寸(长×宽)3 × 2 mm 至 120 × 80 mm
硬度(热处理后)36 – 48 HRC(取决于合金)
尺寸公差关键尺寸±0.01 mm,一般尺寸±0.05 mm
平面度25 mm长度内0.05 mm
表面光洁度Ra0.8 µm(标准),0.4 µm(研磨)
0.3 mm挠度下的接触力50 – 300 gf(按设计)
毛刺高度≤ 0.03 mm,可按要求去毛刺
交期(样品)标准模具7天
起订量无起订量 – 可从100件开始

每次发货前的检验:力、高度和镀层厚度

弹片是功能件,因此我们不只依赖卡尺测量。每批次均通过安装在模拟您配合连接器的测试夹具上的数字推拉力计进行100%接触力检查。我们还使用分辨率为0.5 µm的三坐标测量机测量零件高度,并使用XRF检测每批次三个零件的镀层厚度。对于大批量订单,我们使用视觉系统以每分钟200件的速度检查折弯角度和表面划痕,拒绝任何超出您图纸限制的零件。

我们随每次发货提供完整的检验报告,包括材料钢厂证书、硬度测试结果和力-位移曲线图。如果您需要PPAP三级文件,我们可在中国东莞五金冲压件制造商工厂免费为您准备首批订单的文件。这是具有可追溯性的精密制造——每个零件均可追溯到卷料批次和冲压操作员。

何时应选择冲压而非CNC加工弹片

如果您的弹片厚度小于1.5 mm且年需求量超过5,000件,冲压始终比CNC加工更经济。级进模每0.15秒生产一个弹片,而CNC铣削每个零件需要40–60秒。模具成本(通常为$800–$3,000)在前20,000个零件内即可收回。但对于极其复杂的3D形状或200件以下的原型,我们建议使用CNC——我们在同一工厂内同时提供两种工艺,因此您可以获得诚实的比较。

有关材料选择和切削策略,如果您同时加工配合组件,请参阅我们的CNC刀具选择指南。在最终确定图纸之前,请查阅CNC加工公差指南,以避免指定比冲压工艺能以低成本保持的更严格公差。

弹片冲压的最低起订量是多少?

无起订量——我们接受100件用于打样,1,000件用于生产,在中国制造并提供完整的质量文件。

你们可以定制弹片的接触力吗?

可以,我们调整折弯角度、材料厚度或热处理周期以达到您的精确力目标,并在发货前在测试夹具上进行验证。

你们如何确保大批量弹片的质量?

我们使用模内传感器在每次冲程中检查零件存在性和高度,并进行最终100%视觉检测,检查尺寸和表面缺陷。

定制弹片模具的典型交期是多久?

标准级进模模具需要15–20个工作日,我们在模具批准后7天内交付首件。

发送您的图纸,12小时内获得正式报价

我们不收取报价费用,也不会因小批量而抬高价格。将您的2D图纸(PDF或DXF)或3D模型(STEP)发送至sc@bquq.com——我们的工程师将在4小时内审查可成型性、接触力和材料选项。您将在12小时内收到包含模具成本、单价和交期的正式报价。如有紧急问题,请通过WhatsApp联系我们:+86 13713157787。我们是专注于弹片的中国东莞五金冲压件制造商,已准备好本周为您生产零件。


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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