• PCB Thermal Management Techniques

    Oct 06 2019  PCB thermal management techniques depend on a number of factors including the amount of heat the components and circuit dissipate the environment the overall design and the enclosure. If heat generation is low the circuit can work without additional cooling. However if the circuit generates higher amounts of heat there should be a cooling

  • A better way to mine gold from old electronics

    Aug 31 2016  First printed circuit boards are dissolved in the acid which turns all of the metal in the board to liquid. Then an oily solvent made from toluene is added kicking off a

  • WEEE Recyling Business Plan Final

    Jul 25 2015  Personal computers contain the most as much as 2.62 lb. of FR agents in the cabinet and another 1.13 lb. in the circuit boards according to a report from the Univ. of British Columbia Vancouver published in the February issue of Resource Recycling magazine.13 Plastics can be divided into two general categories thermoplastics and

  • Westech Recyclers

    Westech Recyclers is a full service electronic. recycling and asset management ITAD company. Serving businesses and the community since 1999. One of the oldest and largest electronic recyclers in the Southwest. Over 2000 commercial and

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  • How to Recycle Washing Machines RecycleNation

    Feb 07 2015  The body is made with steel. So is the drum or wash tub where the clothes are held although it may be coated with porcelain to prevent it from rusting. The buttons and dials on many washing machines are made with plastic as are some interior components. The washing machine cord is made of copper coated with plastic.

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    Resources Conservation Recycling Advances. Resources Conservation Recycling Advances RCR Advances is an open access journal for publishing cutting edge research on sustainable management and conservation of resources circular economy and resource sustainability. RCR Advances strives to implement a high standard and rapid peer review .

  • Copper wire granulator

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  • Electronics E Cycle Washington

    Find an E Cycle location by selecting Electronics as the material. E Cycle Washington is a free program that makes it easy for Washington residents to recycle their broken obsolete or worn out electronics. Electronic products contain valuable materials that can be recycled and toxic chemicals that should be kept out of the landfill.

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  • The 10 Most Common National Electric Code Violations

    Dec 29 2020  A service panel requires a working clearance that’s 30 in. wide three feet deep and six feet eight inches high in the national electric code. Here’s a good rule of thumb If you can’t park a refrigerator in front of the panel you don’t have enough working space. These clearances are designed to protect the person working on the panel.

  • Gold Content in a Computer

    EScrap such as whole computers or individual components from computers contain gold palladium and other precious materials. Computer circuit boards have gold and other precious metal traces in densities comparable to mined ore. There is enough valuable material to make refinement profitable on even a moderate scale.

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  • Instrument Cluster Repair w/pics Part II

    It s a good idea to mark one of the connection wires in case they get mixed up. I marked the top wire at the red plastic casing with a T using a sharpie. The speedometer screws are next. They take a phillips screwdriver. The speedometer also has a hard circuit board that is riveted to the plastic circuit board through four rivets.

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  • Electronics Donation and Recycling

    Mar 03 2022  Recycling one million laptops saves the energy equivalent to the electricity used by more than 3 500 US homes in a year. For every million cell phones we recycle 35 thousand pounds of copper 772 pounds of silver 75 pounds of gold and 33 pounds of

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    Working process of copper wire granulator machine. For larger capacity the cable wires raw materials will be firstly put into the shredder then go into crusher to get the small pieces wires then our pulse air separator machine will make the copper and plastic suspended on the screen to separate the copper from the plastic by weighting method

  • Gold value in computer chips

    At Chips Etc. we often get inquires into what is the value of gold found in vintage computer chips and other electronic items. Our best advice is to always check into the rarity and collect ability of your computer chip before considering sending it to a precious metal recycler with the intent of scrap gold refining.It may be worth quite a bit more due to it s collectible value than in it s

  • E Waste Recycling Facts and Figures

    Jan 14 2020  By recycling 1 million cell phones more than 35 000 pounds of copper 33 pounds of palladium 772 pounds of silver and 75 pounds of gold can be recovered. The excessive amount of lead in e waste if released into the environment could cause severe damage to human blood and kidneys as well as central and peripheral nervous systems.

  • Everyday Items That You Can Recycle for Money

    The company accepts working or broken phones tablets rechargeable batteries circuit boards and a variety of other electronics. Even if an item is broken or was submerged in water and is unusable Eco Cell will accept it in order to divert electronics from landfills and properly dispose of their toxic components and metals.

  • How to Recycle Your Old Computer

    Mar 26 2021  Recycling centers and local recycling days If you just want to throw away your old electronics make sure you send them to an official

  • PDF

    Electrical Wiring Components and Accessories

    a Copper. It is a good conductor of electricity. It is used in wiring materials in cables. Its has low resistance and is used . for conduction of electricity at high medium and low voltage Fig. 3.2 . It is used in wiring and cable making. b Aluminium.

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  • What is a Printed Circuit Board PCB

    Printed circuit boards PCBs are the foundational building block of most modern electronic devices. Whether simple single layered boards used in your garage door opener to the six layer board in your smart watch to a 60 layer very high density and high speed circuit boards used in super computers and servers printed circuit boards are the foundation on which all of the

  • What Can We Do About the Growing E waste Problem

    Aug 27 2018  The U.S. Environmental Protection Agency EPA says One metric ton of circuit boards can contain 40 to 800 times the amount of gold and 30 to 40 times the amount of copper mined from one metric ton of ore in the United States. These precious materials can be reclaimed through recycling.

  • PDF

    Recommended Soldering Techniques

    connected into the circuit assembly. Adhering to good soldering practices will preserve the inherent reliability of the original components and ensure a good reliable connection of the component into the circuit assembly. Soldering Considerations Substrates A substrate is a material which constitutes a printed circuit board commonly called a