产品

BQUQ定制拉伸弹簧 | 中国精密制造

此拉伸弹簧的功能及公差为何重要 这是一款为机械装配中精确力控制而设计的定制拉伸弹簧。在整个变形范围内,负载精度可达±3%,外径公差为±0.02 mm,自由长度公差为±0.05 mm。我们将线径公差控制在±0.01 mm,这直接稳定了弹簧刚度。原型交期为7天,批量生产交期为15天,产品从我们东莞工厂发货,热处理后硬度范围为45–52 HRC。无起订量——可订购一件或一百万件。 我们库存的拉伸弹簧负


分享此产品


获取报价

产品详情

此拉伸弹簧的功能及公差为何重要

这是一款为机械装配中精确力控制而设计的定制拉伸弹簧。在整个变形范围内,负载精度可达±3%,外径公差为±0.02 mm,自由长度公差为±0.05 mm。我们将线径公差控制在±0.01 mm,这直接稳定了弹簧刚度。原型交期为7天,批量生产交期为15天,产品从我们东莞工厂发货,热处理后硬度范围为45–52 HRC。无起订量——可订购一件或一百万件。

我们库存的拉伸弹簧负载曲线线材材料

我们内部备有12种线材等级,确保您的拉伸弹簧无需等待原材料。对于一般用途,我们使用音乐钢丝ASTM A228(直径0.2–6.0 mm)和硬拉钢丝A227。对于腐蚀性或高温环境,我们提供不锈钢302(A313)和316(A478)。对于阀门回位机构等高疲劳应用,我们使用铬硅钢A401和铬钒钢A231。每个线圈均在CNC成型机上绕制,节距精度为±0.03 mm,确保负载曲线在计算值的1%范围内保持线性。

防止早期断裂的热处理和表面处理

每只拉伸弹簧在绕制后均经过250–300°C、30分钟的应力消除处理。这消除了拉丝过程中产生的残余应力,并将弹性极限提高15%。对于高循环应用,我们增加喷丸处理(强度0.2–0.4 mmA)以压缩表面层,与未喷丸弹簧相比,疲劳寿命提高200%。标准表面粗糙度为Ra 0.8 µm,但通过微抛光工艺可实现Ra 0.4 µm。如果弹簧需要耐腐蚀性,我们根据ASTM B633标准进行镀锌(8–12 µm)或化学镀镍(25 µm)。

端部结构:如何将弹簧钩入装配体

拉伸弹簧最先失效的部位是钩部,因此我们以与线圈相同的精度加工钩部。我们提供六种钩型:全环、半环、延伸钩、交叉中心环、双扭和缩径外径钩。每种钩型均在专用芯轴上成型,以确保内径公差为±0.03 mm。我们使用视觉系统检查钩部对中,角度偏差控制在±1.5度以内。对于动态负载,我们在钩部弯曲处增加应力消除缺口,以消除裂纹萌生点——这是标准工艺,不额外收费。

每次发货前的检验:100%线圈力测试

我们发货的每只拉伸弹簧均在最大变形量的25%、50%和75%处进行负载测试。我们使用精度为读数±0.5%的数字测力计,并将实际负载曲线记录在合格证书上。自由长度和外径通过分辨率为0.001 mm的CNC光学比较仪检查。我们还对每批次进行10次压缩永久变形测试,以确认弹簧恢复到原始自由长度的0.2%以内。如有任何一件不合格,整批产品将被扣留并重新分选。

海运包装与防腐蚀保护

我们将拉伸弹簧包装在防静电VCI(气相防锈)袋中,然后放入带隔板的双层纸箱中,以防止弹簧相互缠绕。对于自由长度超过50 mm的弹簧,我们使用独立管包装以避免缠结。每个纸箱均标注您的零件号、批号和热处理批次。自2018年以来,我们已向34个国家发货,无一例腐蚀投诉。对于快递运输,我们使用真空密封袋并附带额定60天防潮保护的干燥剂包。

交期与起订量:生产排程的真实数据

原型拉伸弹簧(1–50件)自图纸确认后7天内发货。批量生产(50–10,000件)15天内发货。订单超过10,000件,需增加5天用于线轴更换和额外QC抽样。起订量为零——我们接受单件原型弹簧。标准线径(0.2–6.0 mm)的模具费用为$0。对于非标准线材,我们收取$150的设置费,订单超过2,000件可免除。我们在收到图纸后24小时内提供免费DFM反馈,包括弹簧刚度计算和钩部应力分析。

参数规格
线径范围0.2 mm – 6.0 mm
材料ASTM A228, A227, A313, A478, A401, A231
自由长度公差±0.05 mm(长度可达100 mm)
外径公差±0.02 mm
硬度(热处理后)45–52 HRC
表面粗糙度(Ra)0.8 µm标准,0.4 µm可选
负载精度指定变形量下±3%
钩部角度偏差±1.5度
疲劳寿命(喷丸处理)50%最大负载下10^6次循环
交期(原型/批量)7天/15天
起订量无起订量(接受1件)

我们的拉伸弹簧如何融入您的整体CNC加工流程

拉伸弹簧通常是最后指定的机械部件,但它直接与您的机加工零件相互作用。如果弹簧座孔公差较紧,请参阅我们的CNC加工公差指南,确认您的孔公差与我们的弹簧外径公差±0.02 mm相匹配。对于安装在螺纹螺柱或车削轴上的弹簧,配合面的表面粗糙度会影响摩擦和弹簧就位——我们的CNC刀具选择指南介绍了如何在这些表面上实现Ra 0.4 µm。我们还在同一工厂内制造配合部件(CNC加工弹簧座、保持垫圈和冲压钩),因此您只需一张图纸即可订购完整的子组件——省去单独供应商审核的麻烦。

定制拉伸弹簧的最小起订量是多少?

我们无起订量——您可以订购单件原型弹簧来验证设计,批量价格从50件起生效。

你们能否精确匹配现有拉伸弹簧的负载曲线?

可以,请寄送样品给我们,我们将使用力-位移曲线追踪仪逆向工程线径、圈数和自由长度,然后在±2%范围内复现负载曲线。

你们如何保证大批量拉伸弹簧订单的质量?

我们对每50件批次进行过程SPC(统计过程控制),检查外径、自由长度和3个点的负载,并随每次发货提供完整检验报告。

紧急拉伸弹簧订单的最快交期是多少?

对于库存的标准线径,我们可在72小时内通过快速加工和隔夜热处理发货100件原型,但需在CST上午10点前完成图纸确认。

12小时内获取正式报价——立即发送您的图纸

请将您的拉伸弹簧图纸、草图或样品零件发送给我们。我们的工程师将在12小时内回复正式报价,包括线材材料推荐、负载曲线计算和钩部几何DFM建议。我们是位于中国东莞的精密制造工厂,拥有20年CNC加工、冲压和弹簧制造经验。无起订量,标准线材无模具费,我们使用英语沟通——无翻译延误。请将图纸发送至sc@bquq.com或通过WhatsApp联系我们:+86 13713157787。我们还将为您的钩部设计进行免费应力分析,以防止早期失效。立即发送您的图纸,获取与本地供应商竞争的价格,同时保持±0.02 mm公差。


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.