产品

BQUQ不锈钢拉伸弹簧系列02 | 精密CNC加工

BQUQ的不锈钢拉伸弹簧系列02是一系列预设计的拉伸弹簧,适用于需要可预测力、抗疲劳性和严格尺寸控制的应用。每根弹簧的外径和自由长度公差为±0.01 mm,表面光洁度为Ra 0.8 µm,热处理后最低硬度为45 HRC。我们在12小时内报价,5天内交付原型,东莞工厂的准时交付率为99.2%。 为什么系列02采用302不锈钢而非304或316 系列02所有弹簧均采用302不锈钢丝,因为在该线径范围


分享此产品


获取报价

产品详情

BQUQ的不锈钢拉伸弹簧系列02是一系列预设计的拉伸弹簧,适用于需要可预测力、抗疲劳性和严格尺寸控制的应用。每根弹簧的外径和自由长度公差为±0.01 mm,表面光洁度为Ra 0.8 µm,热处理后最低硬度为45 HRC。我们在12小时内报价,5天内交付原型,东莞工厂的准时交付率为99.2%。

为什么系列02采用302不锈钢而非304或316

系列02所有弹簧均采用302不锈钢丝,因为在该线径范围内,它是奥氏体等级中抗拉强度最高(高达2,100 MPa)的材料。304提供更好的耐腐蚀性,但在循环载荷下的疲劳寿命低20%。316成本更高,但在干燥或轻度润滑环境中并无额外优势。对于大多数精密应用——医疗设备、航空航天执行器、汽车锁扣——302是正确的冶金选择。如果您的设计需要耐盐水或化学品暴露,我们可以按要求切换为316,交期调整2天。

钩形几何与初张力:我们如何消除过早断裂

系列02的钩形采用最小弯曲半径,为线径的1.5倍。这不是默认值,而是计算值,可将钩形过渡处的应力集中比尖锐的90度弯曲降低40%。我们提供四种钩形:全环、延伸钩、交叉中心钩和侧环。每500件进行一次染料渗透测试,检查钩形是否存在裂纹萌生。初张力设置为最大载荷的5-8%,确保在装配中稳定就位,防止首个循环后出现下垂或永久变形。

载荷率校准:从0.1 N/mm到50 N/mm,无需猜测

系列02中的每根弹簧均在闭环送丝控制的CNC卷簧机上卷制。这使我们在整个挠度范围内的弹簧刚度公差为±3%。相比之下,行业标准为±10%。我们在数字测力仪(精度±0.5 N)上校准最大挠度的20%、50%和80%处的载荷,并将数值记录在检验报告中。如果您的应用需要在特定高度达到特定载荷——例如45 mm处12 N——我们会在CNC程序中调整线圈节距和线径,然后对首件进行100%检查验证。

热处理与表面钝化:达到45 HRC而不脆化

卷制后,每根弹簧在260°C的受控气氛炉中消除应力30分钟。这消除了成形过程中的残余应力并稳定了尺寸。对于需要更高硬度的弹簧,我们采用沉淀硬化循环,达到45-48 HRC,同时保持断裂伸长率高于40%。随后在硝酸浴中进行表面钝化,去除游离铁颗粒并增强耐腐蚀性——这对于医疗和食品级应用是强制性的。没有弹簧未经这两步处理即发货。

尺寸验证:每批次的光学测量与力测试

我们使用Keyence IM-8000光学比较仪测量每批次32件样品的自由长度、外径和钩形对齐度。对于关键尺寸,我们使用数字千分尺(分辨率0.001 mm)测量100%的零件。力测试在定制载荷框架上进行,配备1 kN测力传感器,校准至ISO 376标准。我们的质量实验室将所有数据记录在批次特定证书上。如果您订购1,000件,您将获得一份证书。如果您订购100,000件,您将获得十份证书——每个子批次一份,以便追溯任何缺陷的来源。

全球运输的包装与防腐蚀

系列02弹簧单独包裹在VCI(气相防锈)纸中,防止运输过程中生锈,即使在高湿度的海运集装箱中也是如此。然后我们将其包装在带泡沫内衬的硬纸板箱中,防止缠绕或变形。对于超过10,000件的订单,我们使用带独立槽位的防静电塑料托盘——这消除了解缠需求,缩短了您的装配时间。每个箱子都贴有条形码标签,包含批次号、材料等级和热处理日期,实现完全可追溯性。

定制修改:线径、线圈数和端部配置

系列02是起点,而非限制。我们可以将线径从0.2 mm更改为8.0 mm,调整有效线圈数,或添加镍涂层以提高耐温性(最高300°C)。您还可以要求封闭磨平端部,以便在平面凹槽中安装——这不是标准配置,但如果我们有库存线材,则不会增加交期。将您的载荷要求图纸发送给我们,我们的工程师将在24小时内建议确切的线材等级和几何形状。如需帮助选择配套部件的合适工具钢,请参阅我们的CNC切削刀具选择指南

参数数值/范围
材料302不锈钢(AISI),可选316或17-7PH
线径0.2 mm – 8.0 mm
自由长度5 mm – 300 mm
外径2 mm – 50 mm
硬度45 – 48 HRC(沉淀硬化后)
公差(外径和自由长度)±0.01 mm
表面光洁度Ra 0.8 µm(钝化后)
弹簧刚度公差±3%(三点校准)
最高工作温度260°C(302不锈钢),300°C(镍涂层)
交期(原型)5个工作日
交期(生产)1,000-50,000件为12-15个工作日
最小起订量无最小起订量(原型验证可接受1件)

我们如何在高产量下保持精密制造的一致性

我们的CNC卷簧机在10小时班次内保持线圈节距的重复性为±0.005 mm。我们通过在线激光测量仪进行监控,自动剔除任何超出规格的零件。对于超过20,000件的订单,我们运行控制图(X-bar和R),每小时更新,如果趋势线接近警告限值,则暂停生产。这就是为什么我们可以承诺首件与批次之间的外径偏差小于0.02 mm——即使您订购200,000件也是如此。如果您想将我们的工艺与传统成形进行比较,请阅读我们的CNC加工公差指南,了解可测量的差异。

每次发货前的检验:您在证书上收到的内容

每次发货均包含材料证书(EN 10204 3.1)和尺寸检验报告。报告列出自由长度、外径、线径、钩形对齐度(1°以内)以及3个指定挠度处的载荷。我们还附上一张在10倍显微镜下拍摄的代表性样品照片,显示表面光洁度。如果您需要完整的PPAP 3级提交,我们可以提供,额外需要2天。我们的QC团队仅在所有参数均在上述公差范围内时签字——无例外,无部分批准。

成本驱动因素及如何降低单价

影响系列02弹簧价格的三个因素:线径(材料成本)、公差等级(检验时间)和数量(工装摊销)。例如,1.0 mm线径弹簧,公差±0.01 mm,10,000件时单价为$0.08,但100,000件时降至$0.05。如果将公差放宽至±0.03 mm,价格再降20%,因为我们可以使用高速卷制而无需在线测量仪。我们始终同时报价两种选项——严格公差和标准公差——以便您根据实际功能需求做出决定。

系列02的最小起订量是多少?

没有最小起订量。我们接受单件原型验证,收取少量设置费,生产订单从100件起。

你们可以定制钩形或添加涂层吗?

可以——我们提供四种标准钩形,以及螺纹端或旋转钩等定制形式,以及锌镍或PTFE等涂层,交期增加2天。

你们如何保证大批量订单的质量?

我们对100%的零件进行在线激光测量,每批次在光学比较仪上进行32件样品检验,并随每次发货提供完整的尺寸报告。

目录外定制弹簧的典型交期是多少?

原型在5个工作日内发货,10,000件的生产订单在图纸批准后12-15个工作日内发货。

准备好获取正式报价了吗?发送您的图纸,12小时内获得价格

将您的零件图纸、载荷要求和目标数量发送给我们。我们的工程团队将在12小时内回复正式报价、DFM(可制造性设计)审查和建议的线材等级。我们是中国东莞的一家精密制造工厂,拥有20年的CNC加工和弹簧成形经验。所有弹簧均在ISO 9001:2015控制下中国制造无最小起订量适用于任何定制订单。如需了解更多关于CNC线材成形如何优于传统方法的信息,请参阅我们的定制弹簧制造CNC线材成形指南

邮箱:sc@bquq.com
WhatsApp:+86 13713157787
立即发送您的图纸——我们在12个工作小时内回复。


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

联系我们报价
获取报价
我们使用cookie来改善您的在线体验。继续浏览本网站即表示您同意我们使用cookie

Cookies

Please read our Terms and Conditions and this Policy before accessing or using our Services. If you cannot agree with this Policy or the Terms and Conditions, please do not access or use our Services. If you are located in a jurisdiction outside the European Economic Area, by using our Services, you accept the Terms and Conditions and accept our privacy practices described in this Policy.
We may modify this Policy at any time, without prior notice, and changes may apply to any Personal Information we already hold about you, as well as any new Personal Information collected after the Policy is modified. If we make changes, we will notify you by revising the date at the top of this Policy. We will provide you with advanced notice if we make any material changes to how we collect, use or disclose your Personal Information that impact your rights under this Policy. If you are located in a jurisdiction other than the European Economic Area, the United Kingdom or Switzerland (collectively “European Countries”), your continued access or use of our Services after receiving the notice of changes, constitutes your acknowledgement that you accept the updated Policy. In addition, we may provide you with real time disclosures or additional information about the Personal Information handling practices of specific parts of our Services. Such notices may supplement this Policy or provide you with additional choices about how we process your Personal Information.


Cookies

Cookies are small text files stored on your device when you access most Websites on the internet or open certain emails. Among other things, Cookies allow a Website to recognize your device and remember if you've been to the Website before. Examples of information collected by Cookies include your browser type and the address of the Website from which you arrived at our Website as well as IP address and clickstream behavior (that is the pages you view and the links you click).We use the term cookie to refer to Cookies and technologies that perform a similar function to Cookies (e.g., tags, pixels, web beacons, etc.). Cookies can be read by the originating Website on each subsequent visit and by any other Website that recognizes the cookie. The Website uses Cookies in order to make the Website easier to use, to support a better user experience, including the provision of information and functionality to you, as well as to provide us with information about how the Website is used so that we can make sure it is as up to date, relevant, and error free as we can. Cookies on the Website We use Cookies to personalize your experience when you visit the Site, uniquely identify your computer for security purposes, and enable us and our third-party service providers to serve ads on our behalf across the internet.

We classify Cookies in the following categories:
 ●  Strictly Necessary Cookies
 ●  Performance Cookies
 ●  Functional Cookies
 ●  Targeting Cookies


Cookie List
A cookie is a small piece of data (text file) that a website – when visited by a user – asks your browser to store on your device in order to remember information about you, such as your language preference or login information. Those cookies are set by us and called first-party cookies. We also use third-party cookies – which are cookies from a domain different than the domain of the website you are visiting – for our advertising and marketing efforts. More specifically, we use cookies and other tracking technologies for the following purposes:

Strictly Necessary Cookies
These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information.

Functional Cookies
These cookies enable the website to provide enhanced functionality and personalisation. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of these services may not function properly.

Performance Cookies
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.

Targeting Cookies
These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.

How To Turn Off Cookies
You can choose to restrict or block Cookies through your browser settings at any time. Please note that certain Cookies may be set as soon as you visit the Website, but you can remove them using your browser settings. However, please be aware that restricting or blocking Cookies set on the Website may impact the functionality or performance of the Website or prevent you from using certain services provided through the Website. It will also affect our ability to update the Website to cater for user preferences and improve performance. Cookies within Mobile Applications

We only use Strictly Necessary Cookies on our mobile applications. These Cookies are critical to the functionality of our applications, so if you block or delete these Cookies you may not be able to use the application. These Cookies are not shared with any other application on your mobile device. We never use the Cookies from the mobile application to store personal information about you.

If you have questions or concerns regarding any information in this Privacy Policy, please contact us by email at . You can also contact us via our customer service at our Site.