Copper foil fatigue
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Flex cables made with very thin copper foil must use the proper type of copper to with stand the high flex cycles experienced during vibration.
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Bga underfill cte mismatch
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Raymond Limited's quality policy expresses their objectives to ensure flawless quality garments through best quality systems and procedures. They employ a 4 point inspection system and maintain a quality average of 2.39 C&D. Random sampling involves inspecting a percentage of daily production and escalating sample sizes if defects are found. Raymond implements a 5S system to develop a problem-solving culture and reduce defects through sorting, straightening, sweeping, standardizing, and self-discipline. Their quality manual details how their quality management system and continuous improvement processes operate.
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Wear and corrosion studies on ferritic stainless steel (ss 409 m)
Abstract The wear and corrosion behavior of SS 409M have been evaluated and compared with Mild steel ferritic stainless steel SS 430, and austenitic stainless steel SS 304. The SS 409M is a utility grade ferritic stainless steel, and has a very low Ni percentage less than 0.30%. Annealed SS 409M contains ferrite and low percentage of tempered martensite whereas normalized SS 409M has low ferrite and higher percentage of tempered martensite. The manufacturing cost for this steel is low as compared to other grades of stainless steel but it has high strength with excellent corrosion resistance, abrasion resistance and can be easily fabricated. Thus SS 409M has been found to be a suitable material for replacing mild steel in structural applications. SS 409M has also got good wear resistance and this can be considered as an alternate material for mild steel in the railway wagons, track armor, and chemical tanks. The dry wear test has been carried out using the pin on disc machine for all the specimens. The results show that 409M has higher wear resistance as compared to mild steel and SS 430. The corrosion test has been carried out using the potentiostat for SS 409M both in annealed and in the normalized condition and the results are compared with SS 430 and SS 304. SS 304 and SS 430 stainless steels show excellent corrosion resistance while SS 409M both in annealed and in normalized condition reveal higher corrosion resistance than mild steel. Results are discussed with published work on these steels. Keywords: SS 409M, SS 409M, SS 430, SS 304
30120130405034
This document summarizes a research article from the International Journal of Mechanical Engineering and Technology that studied the microstructure and mechanical properties of mild steel-copper joints created through friction welding. Key findings include:
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product presentation for steel and power by JMV LPS LTD
JMV LPS LTD offers best practices for electrical equipment safety and products including maintenance-free earthing systems, lightning arrestors, surge protection, and flame-proof cable joints. Their copper bonded grounding rods have a copper coating for corrosion resistance. They also offer an earth-enhancing compound that retains moisture to provide a smooth path for current flow and make the grounding system low maintenance. Exothermic welding provides a strong, permanent molecular bond between conductors that is superior to mechanical connections and won't deteriorate over time. Lightning protection standards recommend measures like shortest earth paths, flexible down conductors, and earthing design for 100kA fault current. JMV has clients in power, infrastructure and various industries.
IRJET- Experimental Investigation into the Effect of Austempering on Mech...
This document summarizes an experimental investigation into the effect of austempering on the mechanical properties and microstructure of high silicon steel. Specimens of high silicon steel were austempered at temperatures of 300°C and 400°C for durations of 2 and 4 hours. Tensile testing, hardness testing, and wear testing were performed on the untreated and austempered specimens. Scanning electron microscopy was used to examine changes in microstructure. The experiment aims to understand how austempering affects the mechanical properties and microstructure of high silicon steel.
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The document discusses electrodepositing a Ni-Mg-Zn coating on mild steel chains at varying temperatures to improve corrosion and wear resistance. Mild steel chains are commonly used for ship anchors and cranes but are susceptible to corrosion from saltwater exposure. Alternatives to chromium plating were investigated. Nickel, zinc, and magnesium were selected for their properties. The coating was applied via electrodeposition at 30°C, 50°C, and 70°C and characterized using SEM, EDS, XRD, and corrosion/wear tests. Results showed the coating improved corrosion resistance and lifetime of the steel chains.
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Wires & strips made of brass for use in the electrical industry
Some of the industry is made of brass for use in the electrical industry. Brass is chosen for its exceptional conductivity, which is why it is used in the foremost position.
Plz Join us in Invitation Elecrama exhibition (18 22 jan2020 and new product...
Dear Sir
Wish you a very Happy New Year 2020
We wish to inform you our Customer that we are Participating in Exhibition Date 18th-22nd Jan 2020 Place Expo Center Greater Noida (U.P.)
Plz Click Ling for Registration https://lnkd.in/fQjVx8c
Easy Way to Visit by Metro Rail , Shuttle Service , and use of CAB.
Our Stall in Hall #16 Stall # REP D1
JMV LPS Ltd Always think in direction to offer maximum products in Make in India to the Industries and Follow the Norms set by our Govt Like NBC 2016 , OSID, RDSO,CEA and many more as per Industrial Standards National and International.
Our Main AIM to Offer Product with Technology use for Electrical Installation Safety of Human Lives as per NBC2016 ,IEC and IEEE.
We are in position to answer any queries Related to Earthing as Per IS3043, Grid Earthing as per IEEE80 and Surge and Lightning Protection as per IEC62305.
We are using CDEGS Software for Grid Design and Lightning Protection as Per IEC62305 now in more challenge when Building Segment started adopting Structural Earthing and Down Conductor for LIghtning Through Colom.
We have established First Lab is India for Testing for Lighting and Surge up to 200KA , and High Voltage 550KV as per IEC Norms.
you will find many more once you visit our stall .
Plz Book your pass online and Print Copy to Avoid Que
ASM 2013 Fluxtrol Paper - Innovations in Soft Magnetic Composites and their A...
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In induction hardening, thermal fatigue is one of the main failure modes of induction heating coils. There have been papers published that describe this failure mode and others that describe some good design practices [1-3]. The variables previously identified as the sources of thermal fatigue include radiation from the part surface, frequency, current, concentrator losses, water pressure and coil wall thickness. However, there is very little quantitative data on the factors that influence thermal fatigue in induction coils available in the public domain. By using finite element analysis software this study analyzes the effect of common design variables of inductor cooling, and quantifies the relative importance of these variables. A comprehensive case study for a single shot induction coil with Fluxtrol A concentrator applied is used for the analysis.
A Review Paper On Effect Of Varying Welding Heat Inputs On Microstructure, M...
Electrical Engineering,Mechanical Engineering,Computer Science & Engineering,Artificial Intelligence,Material Science,Mathematicse,Applied physics,Applied Chemistry,Electronics Engineering,Instrumentation Engineering,Civil Engineering,Earth quake Engineering,Structural engineering,
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This document discusses sheet lead and its various applications. It begins by providing an overview of sheet lead's properties such as its high density, malleability, corrosion resistance, and thermal conductivity. It then discusses sheet lead's common uses in roofing, flashing, waterproofing, and soundproofing based on these properties. The document provides details on sheet lead specifications and thickness classes. It also summarizes the major architectural and construction applications of sheet lead and the advantages it provides for each one.
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This document summarizes an experimental investigation on using ferrocement to repair reinforced concrete beams. Three sets of RC beams were tested to failure and then repaired with different ferrocement layer configurations. Beams in set 1 were repaired with a 0.5 inch layer on three sides. Set 2 beams had two 1 inch layers on the bottom and one 1 inch layer on two sides. Set 3 beams had a total of 1 inch layer on three sides. The repaired beams were re-tested and their cracking loads, ultimate loads, and deflections were compared to the original beams. Test results showed that beams with two bottom layers of ferrocement overlay performed comparatively better in strengthening the beams. The study demonstrated that ferrocement layers can
A REVIEW OF STUDY ON CORROSION BEHAVIOUR OF ZINC COATED MILD STEEL
The document reviews studies on the corrosion behavior of zinc-coated mild steel. Zinc coating is commonly used to protect mild steel from corrosion by acting as a sacrificial anode. Several techniques for applying zinc coatings are discussed, including electroplating, cold spraying, and using zinc alloys. Research has found that zinc coatings improve corrosion resistance of mild steel in various environments like salt water. Thicker zinc coatings and post-treatment processes like heat treatment can further enhance corrosion protection. Zinc-coated mild steel performs better than uncoated mild steel in corrosive environments.
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Wear and corrosion studies on ferritic stainless steel (ss 409 m)
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Engine compression ratio study
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学校原版美国波士顿大学毕业证学历学位证书原版一模一样
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留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
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8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问微bwp0011
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二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微bwp0011】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
International Conference on NLP, Artificial Intelligence, Machine Learning an...
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
Unit-III-ELECTROCHEMICAL STORAGE DEVICES.ppt
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
哪里办理(csu毕业证书)查尔斯特大学毕业证硕士学历原版一模一样
原版一模一样【微信：741003700 】【(csu毕业证书)查尔斯特大学毕业证硕士学历】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Software Engineering and Project Management - Introduction, Modeling Concepts...
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
AI assisted telemedicine KIOSK for Rural India.pptx
It gives the overall description of SIH problem statement " AI assisted telemedicine KIOSK for Rural India".
Embedded machine learning-based road conditions and driving behavior monitoring
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
CHINA’S GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECT
The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
china’s geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
Hematology Analyzer Machine - Complete Blood Count
The CBC machine is a common diagnostic tool used by doctors to measure a patient's red blood cell count, white blood cell count and platelet count. The machine uses a small sample of the patient's blood, which is then placed into special tubes and analyzed. The results of the analysis are then displayed on a screen for the doctor to review. The CBC machine is an important tool for diagnosing various conditions, such as anemia, infection and leukemia. It can also help to monitor a patient's response to treatment.
cnn.pptx Convolutional neural network used for image classication
Convolutional Neural Network used for image classification
官方认证美国密歇根州立大学毕业证学位证书原版一模一样
原版一模一样【微信：741003700 】【美国密歇根州立大学毕业证学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...
This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
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Copper foil fatigue
- 1. Copper Foil mechanical fatigue in flexible printed circuits subject to high cycle vibration 04/22/2009 Don Blanchet 3B Associates 339-234-3544
- 2. Scope Present information on the metallurgical structure of 2 copper foil structures used in flex circuit design for a vibration environment – RA, rolled annealed – ED, electrodeposited “Superflex” from OAK-Mitsu
- 3. Metallurgical Factors Copper foils have grain structures that vary widely depending on the manufacturing process My research has found that they do not behave as does bulk copper both in the annealed and cold worked states Foils developed for flex circuit applications are sometimes tailored for the type of flex and expected number of cycles Specific Cycling Tests have been developed to determine fatigue properties for various common applications such as: – Disk drives – Cellular telephones – Printers
- 4. Reference copper foil fatigue characteristics (1/2 oz) Long Crack propagation length short Crack propagation length
- 6. Is “SuperFlex” right for a vibration application? Interviews with OAK-MITSUI tech support: this material was developed for primary use in cellular telephone applications – large bend-to install and moderate flexure cycles. The last fatigue test was performed over 10 years ago to certify to IPC 4562 grade 11 Our application sounds like a misapplication due to the number of cycles accumulated during our vibration testing They have never encountered a similar application
- 7. Hitachi copper foil research
- 9. Fatigue Life - vibration ~12 Hr qualification test
- 10. Conclusion Rolled and Annealed copper foil is the clear choice over electrodeposited metallurgy for a high cycle flex application.
- 11. Goals Characterize the modal frequencies. Examine the response to Qualification level sine vibration 10G over 20- 2000hz. Look at 3 mutually perpendicular input axes.