Typically, platinum (and other platinum group metals, like palladium) are found on the surface of the hard drive platter (the inside is aluminum) To dissolve the aluminum, first make cut marks across the disks and then put in a saturated solution of cold water and lye Lye is very corrosive, so wear protective gear
The electric induction furnace is a melting furnace, uses electric current to melt electrically conductive materials Induction furnaces are widely used for melting a wide variety of metals with minimum melt loss The Block Diagram of Induction Furnace is as shown in fig1 The principle of induction furnace is Induction heating
Friction stir welding is a solid state welding technology used for welding low melting point metals, such as Al, Mg and its alloys Later welding was conducted on dissimilar metals which also produced a better defect free joint [1-3] First mode of metal transfer is by shoulder while the second mode of metal ,
Oct 01, 2016· Smelting PCBs Printed Circuit Boards (Part 1) , Then ash which contains the precious metals are mixed with fluxes and lead and silver, and smelted , Extreme Amazing Casting Gold Melting .
Fig 1 The process of creating circuits by designing hollow channels in 3D printed parts and injecting with low melting point metals to create complete electrical traces: (a) a sche-matic capture of a 555 timer circuit, (b) a PCB board layout for the timer circuit, and (c) an operating circuit after injection
Dec 06, 2018· To remove gold from circuit boards, start by purchasing concentrated nitric acid from an industrial or chemical store You’ll also need a face mask, safety glasses, and industrial gloves to work with nitric acid, since ,
Induction heating allows the targeted heating of an applicable item for applications including surface hardening, melting, brazing and soldering and heating to fit Iron and its alloys respond best to induction heating, due to their ferromagnetic nature Eddy currents can, however, be generated in any conductor, and magnetic hysteresis can occur in any magnetic material
Electric metal melting furnace, the metal is heated by the resistance element ,which is usually applied in non-ferrous metal melting; We choose different furnaces according to the different metals smelted and the final products we want to gain 22 Classification of Metal Melting Furnace
Basic Welding Circuit The basic arc-welding circuit is illustrated in Fig 1 An AC or DC power source, fitted with whatever controls may be needed, is connected by a work cable to the workpiece and by a "hot" cable to an electrode holder of some type, which makes an ,
Materials Used in Semiconductor Manufacturing Basic Elements Used Silicon, symbol Si, is the most commonly used basic building block of integrated circuitsSilicon is a semiconductor, which means that its electrical behavior is between that of a conductor and an insulator at room temperature
“It is true Y-12 were granted US patent 7011136 for melting metal in a microwave chamber Their filing date was November 12, 2001 However, this does not predate my article “Melting metals in a microwave” which was first uploaded to the public domain on April 11, 1997
Or, it may be a specially prepared rod or wire that not only conducts the current but also melts and supplies filler metal to the joint Most welding in the manufacture of steel products uses the second type of electrode Basic Welding Circuit The basic arc-welding circuit is illustrated in Fig 1
The very low melting point metals such as Pb, Sn and Bi etc are not dealt with here We shall concentrate on the structural engineering metals Even so, in passing, we should note that the casting of lead and its alloys for battery grids is currently a major application that should not be overlooked
Printed Circuit Board Recycling Methods 1 Introduction to Printed Circuit Boards The Printed Circuit Board , of copper and precious metals from printed circuit board edge trim is similar , metal in a melting furnace with the addition of sulfur
connections are involved in many circuit or equipment failur This chapter is designed to be used as a guide in the assembly and preventive maintenance of efficient electrical connections for power circuits An efficient connection being defined as one which exhibits minimum resistance, both at initial assembly and in the long run 2 Scope
Next, I had to choose metals that I were readily available to anybody and wold have a low enough melting point to be melted in a regular microwave For this experiment I chose 2 types of common plumbing solder, 50/50 blend of tin/lead and silver solder, having a melting point of 180-190 °C (360-370 °F) and 450 °C (840 °F) respectively
It takes a lot to melt metal — you generally need some sort of heavy-duty torch and a whole lot of time to spare But if you’re familiar with the application of electrical energy and have a basic comprehension of science, you can actually melt metal rather quickly using a bit of electricity and some wire
How to recover silver and gold from computer parts, e-waste, chips, CPU, x-ray films, photographic waste, aqua regia, cyanide solution, circuit boards and RAMS Recovery methods extract or recycle of precious metal like Palladium, Silver and Gold
The QuikMelt Deluxe comes with a universal crucible, digital control panel, 1500 watts of power, and rapidly heats to over 2200 F for all your metal working needs The QuikMelt Deluxe is a high quality top-loading kiln for treatment/melting of precious metals including: Gold, Silver, Sterling Silver, Copper, Bronze, Zinc, Lead, and Tin
Apr 08, 2012· If you’ve ever wanted to forge, cast, or smelt metal, this project is right up your alley It’s a 30 kVA induction heater built by [bwang] over on Instructabl It gets hot enough to melt and .
A fuse consists of a metal strip or wire fuse element, of small cross-section compared to the circuit conductors, mounted between a pair of electrical terminals, and (usually) enclosed by a non-combustible housing The fuse is arranged in series to carry all the current passing through the protected circuit The resistance of the element .
This is a very good question In general, wiring in your home and in devices are pure (or at least 999% pure, due to difficulties of purification) copper So, whether it's phone chargers, or microphones, it's all still copper You will however fe.
May 12, 2019· Still, as mentioned above, the energy required to melt and recycle metals is much less than the energy that is needed to produce metals using raw materials Based on the size of the furnace, the degree of heat of the furnace and volume of metal, melting can ,
Aug 07, 2013· The MGS Precious Metals Blog Manhattan Gold & Silver is an industry leader in precious metal pricing and refining with more than 30 years of experience During our time in the business, we’ve found the topic of precious metals to be a vast and interesting one
DIY Induction Foundry Initial Approach Most of the DIY induction heating projects I have seen tackle the entire power supply from scratch (including voltage and current regulation) My goal is to take advantage of my Harbor Freight 80A inverter constant-current DC stick welder as the power source
Bekijk het bord "Melting Metals Induction" van Suricatus Vigilante, dat wordt gevolgd door 453 mensen op Pinterest Bekijk meer ideeën over Induction heating, Diy heater en Work shop garage
Mar 22, 2019· I f you're building almost anything that uses metal, from a nuclear submarine to a laptop computer, one thing you'll need to be able to do is join metals together Welding is a way of tightly bonding two metals by melting them where they meet, while soldering involves making a joint between components in an electric or electronic circuit Both .
Assemble the scrap circuit boards from computers or phones, memory chips from phones and cameras, and the small components behind LCD screens Gold in these circuits occurs as a layer over a base metal substrate such as nickel or copper Separate the gold-plated metal parts in the circuit ,
Propane Furnaces Propane furnaces do not require any power and can be used on the go They are excellent for melting gold, silver, copper, brass, aluminum, and other metals
Recycle your Circuit Board scrap with Specialty Metals, the top choice in the US for secondary refining of Electronics, Gold, Silver, Platinum and Palladium scrap Don’t throw away profits! Recycle your Circuit Board scrap with Specialty Metals, the top choice in the US for secondary refining of Electronics, Gold, Silver, Platinum and .
We have set up a team with hundreds of technical engineers to resolve a series of problems during project consultation, on-site surveys, sample analysis, program design, installation, commissioning and maintenance guidance.