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BQUQ不锈钢压缩弹簧系列 | 中国定制精密弹簧

本系列在硬性数据上的表现 这是一款为需要在紧凑装配中实现可重复力值和几何精度的工程师设计的不锈钢压缩弹簧系列。我们提供0.1 mm至8.0 mm的线径范围,自由长度公差为±0.01 mm,外径跳动量低于0.02 mm。原型交期15天,批量生产交期25天,硬度根据材料等级控制在42至52 HRC之间。 我们是BQUQ,一家位于中国东莞的精密制造工厂,拥有20年的CNC加工、冲压和弹簧卷制经验。每一


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本系列在硬性数据上的表现

这是一款为需要在紧凑装配中实现可重复力值和几何精度的工程师设计的不锈钢压缩弹簧系列。我们提供0.1 mm至8.0 mm的线径范围,自由长度公差为±0.01 mm,外径跳动量低于0.02 mm。原型交期15天,批量生产交期25天,硬度根据材料等级控制在42至52 HRC之间。

我们是BQUQ,一家位于中国东莞的精密制造工厂,拥有20年的CNC加工、冲压和弹簧卷制经验。每一根弹簧均按您的图纸定制,而非来自产品目录。

我们实际使用的线材等级与热处理工艺

我们常备302、304、316L和17-7PH不锈钢线材。对于高温或腐蚀性环境,316L是默认选择。对于更高疲劳寿命要求,我们使用17-7PH并进行沉淀硬化处理至47-52 HRC。

热处理在厂内受控气氛炉中完成。我们根据线径和自由长度比设定温度曲线,以消除卷制产生的残余应力并确定弹簧的载荷曲线。每批次均对三个样品进行硬度测试,而非仅一个。

我们如何控制自由长度与载荷公差

自由长度公差是定制弹簧最常见的失效点。我们的CNC卷簧机实时测量送线速度和节距,随后使用光学投影仪进行验证。对于自由长度小于50 mm的弹簧,我们保持±0.01 mm公差;对于更长的弹簧,保持±0.02 mm。

在指定变形量下的载荷通过校准的压缩测试机进行测试。我们在每份检验报告上记录总变形量25%、50%和75%处的载荷值。如果您的设计需要特定的弹簧刚度(N/mm),我们根据实测载荷曲线计算,而非理论公式。

端面磨削与垂直度:为何至关重要

本系列标配闭端磨平处理。我们将两端磨平并确保与弹簧轴线平行。垂直度控制在1度以内,可防止装配中发生屈曲和载荷分布不均。

对于自由长度与平均直径比超过4:1的弹簧,我们会增加磨削次数,以降低侧推力和过早疲劳的风险。磨削后轴承表面的表面粗糙度为Ra 0.4 µm。

每次发货前的检验流程

每根弹簧均检查线径、外径、自由长度和总圈数。我们使用分辨率为0.001 mm的数显卡尺和工具显微镜检查线材轮廓。

载荷测试在5 kN万能试验机上进行,变形精度为±0.01 mm。对于500件以下的订单,关键尺寸100%全检。对于较大订单,我们按照ISO 2859-1标准采用AQL 0.65抽样方案。每次发货均附带具有钢厂可追溯性的材质证明和尺寸检测报告。

表面处理与钝化选项

标准表面为卷制态并涂覆轻质防锈油膜。对于洁净室或医疗用途,我们提供电解抛光至Ra 0.2 µm,可去除微裂纹并提高耐腐蚀性。

可提供符合ASTM A967标准的钝化处理,去除表面游离铁并增强铬氧化层。如果您的弹簧将用于盐雾环境,请指定钝化加电解抛光。我们已测试该组合在5%盐雾试验箱中500小时无红锈产生。

从图纸到交付:我们的工作流程

请发送PDF或STEP文件给我们。我们将在4小时内审核您的弹簧刚度、密实高度和屈曲风险。如果设计处于临界状态,我们会致电与您讨论,而非仅通过邮件沟通。

我们使用与量产相同的线材和热处理工艺在3-5天内制作原型,消除量产阶段的意外差异。批量生产使用相同的CNC卷簧机和相同的操作人员,确保公差不会漂移。

我们出口全球。大多数货物通过DHL、FedEx或UPS从深圳仓库发出。对于大批量订单,我们使用从盐田港出发的海运。报关文件由厂内处理。

本系列规格表

参数规格/范围
线径0.1 mm – 8.0 mm
自由长度2 mm – 300 mm
外径1.0 mm – 80 mm
材料302、304、316L、17-7PH不锈钢
硬度42 – 52 HRC(取决于材料等级和热处理)
自由长度公差±0.01 mm(50 mm以下),±0.02 mm(50 mm以上)
外径跳动量≤ 0.02 mm
垂直度≤ 1度
表面粗糙度(磨平端面)Ra 0.4 µm;可按需电解抛光至Ra 0.2 µm
载荷公差指定变形量下规定载荷的±3%
交期原型15天,批量生产25天
起订量无起订量——可订购1件或100,000件

如何融入您的CNC加工流程

压缩弹簧常与精密机加工零件配合使用。如果您正在设计弹簧加载机构,弹簧刚度必须与您壳体的加工公差匹配。为确保配合零件符合规格,请查阅我们的CNC加工公差指南,了解IT等级和表面粗糙度限制的实用解析。

如果您的弹簧是切削刀具组件(如刀柄或夹头)的一部分,弹簧的力值曲线会与刀具几何形状相互作用。关于选择合适的刀具材料和涂层,请阅读我们的CNC刀具选择指南,以避免刚度不匹配问题。

最小起订量是多少?

无起订量。您可以订购一件原型进行验证,我们将在与100,000件订单完全相同的生产线上生产。

如何处理定制尺寸和材料?

请发送包含线径、自由长度、外径和指定变形量下所需载荷的图纸;我们将确认可行性并根据您的使用环境建议材料等级。

你们执行哪些质量控制?

对于小批量订单,我们对每个关键尺寸进行100%全检;对于大批量订单,采用AQL 0.65抽样方案,并随货附带载荷测试、硬度检查和光学投影仪检测报告。

定制弹簧的交期是多久?

原型15天内发货,批量订单在图纸确认后25天内发货。如有紧急验证需求,可直接联系我们,原型可加急至5天。

12小时内获取正式报价

请将您的图纸、载荷要求和年需求量发送给我们。我们将在12个工作小时内回复正式报价、DFM反馈和样品计划。这是中国制造的精密加工服务,但工程沟通使用清晰的英语。

邮箱:sc@bquq.com
WhatsApp:+86 13713157787
立即发送您的图纸。我们将告知您是否可以做得更好、更便宜或更快。


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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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