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1、Standard Practice Procedures for Test & Inspection of the Plating电镀测试和检查标准的检测程序Scope 范围This document specifies the Engineering Requirements Specifications to be conducted at OQC for all Spring Contacts with plating. Unless otherwise noted, thesetests shall be applied to finished springs at the plati
2、ng supplier or spring suppliersite prior to shipment to customer. The customer is permitted to conduct any or all of the tests requirements at their IQC to the sampling frequencies defined in this document and is obligated to reject the lot if any test fails the requirement.本文件适用于成品出货检验所有弹簧片接触面的电镀技术
3、要求规格, 文件中定义了客户允许进行的任何或所有的测试要求，除非另有说明，否则在出货给弹簧客户之前，电镀供应商或者弹簧供应商都必须完成这些测试，若有任何测试失败不合要求项，客户IQC在取样频率中有责任判定为不合格Lot。The quality of the part should not be degraded by assembly, molding, orprocessing into the final unit, so springs from disassembled units must also passthe test requirements specified in thi
4、s document, unless otherwise noted.为降低后序装配，注塑或最后加工成成品的部分质量，所以本文件规定了弹簧从拆开的产品就必须通过这些测试的要求，除另有注释外。The failure modes of concern include but are not limited to the following.重要的失效模式包括但不仅限于以下内容：1) Delamination of the plating layer from the basis metal 镀层的起皮2) Discoloration of the plated layer电镀层变色3) Damag
5、e to the spring 铁片损坏4) Corrosion of the plated layers电镀层防腐蚀5) Evidence of increase porosity 针孔的判定The tests are to be conducted at the sampling frequencies defined in this document.All samples tested must pass prior to shipping the lot and to be accepted atthe customer site.本文件定义采样频率测试，所有样品测试在出货之前必须全
6、部通过且被客户所接受。1) Thickness measurement (X-ray)X-Ray厚度测量2) Salt mist test 盐雾测试3) Heat quench test 热处理测试（热冲击）4) Tin plating soldering test 镀锡表面可焊性测试5) Adhesive test 胶粘剂剥离测试（结合力测试）6) Bending test 可弯曲测试7) Nitric acid Test 耐腐蚀性测试OQC Test Requirements OQC 测试要求Unless otherwise noted, the samples must meet all
7、 functional requirements specifiedin the ERS.除另有说明，样品必须满足ERS规定的所有功能性需求。1. Thickness Measurement 厚度测量A. Plating Thickness Specification: 镀层厚度规格说明Plating thickness is specified in the part drawing. The use of blockers must be reviewed and approved by QE from customer.镀层厚度依指定的零件图，雏形锻模的使用必须由客户质量工程师进行审核和
8、批准。B. Sampling Frequency:抽样频率Thickness is to be checked on 32 randomly selected pieces per lot at OQC. A lot isto be defined as the quantity shipped and received at the customers IQC. Lotslarger than 500,000 pieces should be broken into multiple lot sizes not exceeding500,000 pieces for the purpose
9、of plating ERS testing. Select the 32 test samplesrandomly from the lot, to include various reels and randomly selected positions oneach reel.厚度每个lot OQC随机检查32片作为出货数量出给客户IQC。大于500，000片的Lots可分成很多个批量不超过500，000片的lot，再从每个lot里，包括每卷reel中随机性抽取32个作为测试样品。C. Measurement Equipment:测量设备FISCHERSCOPE X-RAY XULM o
10、r other customer QE approved X-ray measurementequipment.FISCHERSCOPE X-RAY XULM 或者其它被客户质量工程师认可的X-ray 测量设备。D. Measurement Method:测量方法Please allow X ray equipment to warm up completely prior to measurement. Run the appropriate benchmark and calibration cycles for the specific material measured.Measure
11、 each plated area at 3 points of the contact area of the spring. Record allmeasurements and report the average measurement for each contact on the part.Please follow SQE instruction for specific test location map below.测量前启动运行X-ray设备，根据具体的实物量具调试运行适当的基准程序和校准周期，测量每个电镀镀金区域接触面的3个点镀面积，记录所有测量值和每个接触面的平均测量值
12、。Please follow customer instruction for specific test location map below.请按照下图客户所指定的测试位置测量：2. Salt Mist Test 盐雾测试This test is based on ASTM B117: Standard Practice for Operating Salt Spray (Fog)Apparatus, ASTM International. Perform the salt mist test for number of hoursspecified on part drawing.这个测
13、试基于ASTM国际标准化ASTM B117:标准的操作盐雾测试流程，依零件图上规定的进行数小时的盐雾测试。A. Sampling Frequency: 抽样频率Salt Spray is to be conducted on 5 pieces randomly selected per lot.每个Lot随机抽取5片来进行盐雾测试。B. Test Method:测试方法Place test specimens on the racks in the chamber cabinet by allowing at least50mm between test specimen for adequa
14、te fog circulation. Do not allow condensationfrom one specimen to fall on another. Expose the samples to the salt fog for the number of hours specified on drawing at 35C ambient. Let parts dry for 24 hours in ambient conditions.请将检测的样品放在实验柜中的架子上，并保证样品间至少50mm的距离以便有足够的盐雾流通，不允许有冷凝从一件样品滴到另一件样品上。按零件图规定的让
15、样品在35C的盐雾环境中暴露数小时，烘干24小时。C. Inspection Criteria:检查标准Save an image of the sample before and after testing for QC records. Gold plating isto be checked for any corrosion and for function. Note any cosmetic blemishes. Tinlayer is exempt from salt spray requirement. Inspect sample under 20x magnification.样品需在20倍放大的倍率下检查，QC 记录保存测试前后样品的影像，检查镀金的腐蚀和功能，注意任何镀金层表面的瑕疵（花痕、污点，色点等），锡层免除了盐雾测试要求。2. Heat Quench Test 热处理测试 This test is based on ASTM B571: Standard Practice for Qualitative Adhesion Testingof Metallic Coatings.该测试基于ASTM B571：金属表面附着力标准测试流程。A. Samp
