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重型线圈压缩弹簧系列02 | BQUQ精密制造

系列02的核心优势:精密公差、高硬度钢材、快速交付 重型线圈压缩弹簧系列02是一组定制设计的压缩弹簧,专为高循环、高负载应用而打造,适用于标准目录弹簧无法满足的工况。我们提供0.5 mm至12 mm的线径范围,负载公差控制在±0.01 mm以内,表面粗糙度可达Ra 0.4 µm或更优——所有这些均来自一家可在7天内交付样品、15天内交付量产订单的工厂。每根弹簧均在我们拥有20年历史的东莞工厂内制


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系列02的核心优势:精密公差、高硬度钢材、快速交付

重型线圈压缩弹簧系列02是一组定制设计的压缩弹簧,专为高循环、高负载应用而打造,适用于标准目录弹簧无法满足的工况。我们提供0.5 mm至12 mm的线径范围,负载公差控制在±0.01 mm以内,表面粗糙度可达Ra 0.4 µm或更优——所有这些均来自一家可在7天内交付样品、15天内交付量产订单的工厂。每根弹簧均在我们拥有20年历史的东莞工厂内制造,且无起订量要求,您可订购1件用于测试,也可订购100,000件用于批量生产。

我们实际加工的线径范围与自由长度极限

系列02覆盖0.5 mm(精密仪器弹簧)至12 mm(重型机械悬挂)的线径范围。自由长度可在3 mm至300 mm之间,无需特殊工装。外径范围为3 mm至80 mm,最大压实高度经过计算,确保完全压缩时不会发生线圈并紧。如果您的设计超出这些参数,请告知我们——我们拥有可处理最大20 mm线径的定制卷簧机,可满足特殊订单需求。

我们用于实现45–52 HRC一致性的材料与热处理工艺

我们常备三种弹簧级合金:音乐钢丝(ASTM A228)用于一般用途,铬硅钢(ASTM A401)用于高应力和高疲劳工况,以及302不锈钢(ASTM A313)用于腐蚀性环境。卷制完成后,每根弹簧均在惰性气氛炉中进行热处理,以避免脱碳。目标硬度范围为45–52 HRC,我们使用洛氏硬度计对每批次产品进行验证。对于铬硅钢弹簧,我们进行喷丸处理,与未喷丸零件相比,疲劳寿命可提升最高30%。

端圈磨削与平面度:我们如何实现±0.01 mm负载公差

如果端圈不垂直,负载公差便毫无意义。我们使用双盘磨床对两端进行磨削,平面度控制在0.05 mm以内,垂直度控制在1度以内。这确保了弹簧受压时载荷路径沿轴向传递,而非产生角度偏移。最终结果:自由长度弹簧刚度公差为±5%,指定压缩量下负载公差为±10%——两者均通过符合ISO 7500-1标准的数字测力仪进行校准测量。对于关键应用,我们可通过100%全检将负载公差控制在±3%以内。

表面粗糙度Ra 0.4 µm与喷丸选项

标准表面粗糙度为Ra 1.6 µm,但对于高循环应用,我们通过微抛光工艺提供Ra 0.4 µm的表面处理。这减少了导致过早开裂的应力集中点。我们还提供喷丸处理,深度可达0.3 mm,强度依据SAE J442标准控制。喷丸介质采用 conditioned cut wire( conditioned 切割钢丝),而非玻璃珠,以确保获得一致的残余压应力层。如果您的弹簧运行超过100万次循环,请指定喷丸处理——在我们的测试中,这决定了10,000次与500,000次循环寿命的差异。

每次发货前的检验流程:测力测试、尺寸检查、表面扫描

系列02中的每根弹簧在出厂前均经过三阶段检验。首先,数字测力仪在自由长度的25%、50%和75%三个压缩点检测负载。其次,三坐标测量机(CMM)根据您的图纸验证线径、自由长度、外径和压实高度。第三,表面粗糙度仪确认有效线圈的Ra值。每次发货均附带完整的检验报告——不收取额外费用,无隐藏成本。如果任何弹簧未通过检验,将被报废处理,绝不发货。

交期与价格:样品7天,量产15天,无起订量

样品弹簧(1–10件)自图纸确认后7天内发货。量产订单(10件以上任意数量)15天内发货。我们能够实现这一目标,是因为我们的卷簧机支持快速换型——平均换型时间为45分钟,而非4小时。价格按每件计算,依据材料、线径和数量而定。由于热处理和磨削均由厂内完成,我们不增加第三方加价。以100件2 mm线径、20 mm自由长度的弹簧为例,典型报价为每件$0.85,深圳离岸价(FOB)。

规格参数系列02能力范围
线径0.5 mm – 12 mm(可定制至20 mm)
自由长度3 mm – 300 mm
外径3 mm – 80 mm
材料ASTM A228音乐钢丝、A401铬硅钢、A313 302不锈钢
硬度45–52 HRC(每批次验证)
负载公差±10%标准,±3%可选(100%全检)
表面粗糙度Ra 1.6 µm标准,Ra 0.4 µm抛光选项
端圈平面度0.05 mm
垂直度最大1度
交期样品7天,量产15天
起订量无起订量——可订购1件或100,000件

系列02的最小起订量是多少?

无起订量——您可以订购单件样品弹簧用于测试,也可订购整批量产订单,单价将根据数量进行调整。

你们可以定制弹簧端部、挂钩或特殊形状吗?

可以,我们可以磨削、挂钩或成型闭端、开口端或辫子端,并支持根据您的图纸定制挂钩角度和环形形状。

你们如何确保每批次的质量控制?

我们对每根弹簧在三个压缩点进行测力测试、三坐标尺寸检查和表面粗糙度测量,并随货附上检验报告。

定制弹簧订单的交期是多久?

样品自图纸确认后7天内发货,量产订单15天内发货,无论数量多少,因为我们厂内自有的热处理和磨削能力消除了外部延误。

12小时内获取正式报价——发送您的图纸

将您的弹簧图纸、CAD文件,甚至带有尺寸和负载要求的手绘草图发送给我们。我们的工程师将在12小时内回复正式报价,包括材料推荐、热处理规格和交货日期。将您的图纸发送至sc@bquq.com,或通过WhatsApp联系我们:+86 13713157787。如需了解我们的弹簧如何与切削刀具配合使用,请参阅我们的CNC切削刀具选型指南;如需了解我们所控制的公差极限,请查阅CNC加工公差解析指南。我们是位于中国东莞的精密制造合作伙伴,拥有20年的CNC加工、冲压和弹簧生产经验——让我们在您的下一个弹簧订单中证明这一点。


相关产品

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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