Oxygen-free Copper Busbar And Copper Bar With High Conductivity

Oxygen-free Copper Busbar And Copper Bar With High Conductivity

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 500 kg

Supply Capability:: 10000 kg/month

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Type	Cu%(WT)	W%(WT)	RWMA	Density	E-conductivity(Min)		heat conduction	thermal expensivity
Class	(Min)	Hardness	((W/mK))
		(Min)
CuW55	45±2	Balance	10	12.30g/cm3	49%IACS	125HB	~260	~11.7(10-6/K)
CuW60	40±2	Balance		12.75g/cm3	47%IACS	140HB
CuW65	35±2	Balance		3.30g/cm3	44%IACS	155HB
CuW70	30±2	Balance		13.80g/cm3	42%IACS	175HB	~240	~9.7(10-6/K)
CuW75	25±2	Balance	11	14.50g/cm3	38%IACS	195HB	200~230	9.0~9.5 (10-6/K)
CuW80	20±2	Balance	12	15.15g/cm3	34%IACS	220HB	190~210	8.0~8.5 (10-6/K)
CuW85	15±2	Balance		15.90g/cm3	30%IACS	240HB	180~200	7.0~7.5(10-6/K)

Production Equipment

750-1500kg main frequency induction copper melting furnace, 80MN water seal extruder, LG60 high speed two-roll cold pilger mill, straight-line wire-drawing machine, copper tube/pipe straightener, polisher, 84′ copper coil winding machine, straightening-cutting & pancake coiling machine, thermoplastic packaging machine, 1.2T continuous bright annealing furnace.

80MN extruder

Continuous bright annealing furnace

Testing Devices

spectrum analyzer, atomic absorption analyzer, spectrophotometry, analytical balances, metallurgical microscope, eddy current flaw detector, metal tensile testing machine, eddy conductivity instrument.

Hardness tester

Spectrum analyzer

Metallurgical microscope

Metal tensile testing machine

Atomic absorption analyzer

Process

refined copper — smelting & casting — extrusion — rolling — drawing — straightening-cutting/forming of pancake coil — bright annealing — packaging — finished goods.

Standards

GB/T 1527-2006     Drawn tube of copper and copper alloys
GB/T 16866-2006   Dimensions and tolerances of copper and copper alloy seamless tubes
GB/T 4423-2007     Copper and copper-alloy cold-drawn rod and bar
GB/T 5231-2001    Wrought copper and copper alloys chemical composition limits and forms of wrought products
GB/T 5585.1-2005   Copper or aluminium and its alloy bus bars for electrical purposes—Part 1:Copper andcopper alloy bus bars
GB/T 17791-2007   Seamless copper tube for air conditioner and refrigeration equipment
GB/T 19850-2005   The seamless round copper tubes for electrical purposes
GB/T 26024-2010   Seamless copper and copper alloys tube for valves on air-conditioning and refrigeration system
ASTM B280-2008   Standard Specification for Seamless Copper Tube for Air Conditioning and Refrigeration Field Service
EN 12735-1：2001 Copper and copper alloys Seamless,round copper tubes for air-conditioning and refrigeration Part 1:Tubes for piping systems
EN 12735-2：2001 Copper and copper alloy – seamless round copper tube/pipe for air-conditioning and refrigeration system – for equipment
JIS H3300-2009       Seamless copper and copper alloy tube/pipe

Q: What is the approximate cost difference between copper re-piping vs. PEX re-piping? I‘ve read that as much as 30% reduced labor times installing PEX as well as reduced material costs using PEX. Is this correct?: That's pretty accurate. Copper is the most expensive water piping material, by far.

Q: would that work?many thanks: if you want to adapt brass a fitting to 1/2 copper, the brass fitting also needs to be 1/2. Whatever kind of fitting it is. Soldered, compression. Whatever.

Q: I just had new copper pipes put in my house along with a recirculating pump for fast hot water. I‘m having a few issues that I need help on. I have a 3100 SQF house, 2 story. The pipes are routed through the attic for the bathrooms upstairs.1) When the recirculating pump goes in the morning, and pretty much while it is on, I get creaking sounds coming from the pip. Do copper pipes make noise as they get hot?2) The return for the recirculating pump is on my master bath sink. I get hot water super fast in that bathroom when the pump is on. 3-5 second. But the rest of the hosue is still slow. Did they put the return in the wrong spot meaning the pump is not circulating water to the rest of the house?Jason: the pipes expand and make clicking noises if they have been fitted really tight and there is no room to expand. as for the 2 nd question position of pump does not matter as a circulating pump just circles the water round and round the system what matters is the distance between the circulating pump circuit and draw off if its far away then it will take time to come but it should not be too long.

Q: hi i was just wondering how i keep the copper levels down in my saltwater aquarium: Start out by using RO/DI water instead of tap water (if you aren't already). Use this water for both topping off from evaporation and for mixing new saltwater for water changes. There are a few products that will also help absorb copper out of your water, but remember if you medicated with copper it will have absorbed into your coral bed, silicone of the tank and really any porous surface. So you will want to continue to use the media and do water extra changes for at least a few months to make sure you have gotten rid of all of the copper and then keep double checking the levels. One filter media you can try is called a Polyfilter. It is basically a filter pad that you can use in most standard hang on the back filters or canister filters and can cut them to fit. Polyfilters will turn colors when they are absorbing different chemicals (I think green for copper). Seachem also makes a copper absorbing media called CupriSorb. You place them in a filter media bag and put them in your filter system where water can pass by them (like a canister filter or hang on the back filter).

Q: Anyone have experience with the SharkBite Connection System, which requires no soldering? If so, what is your opinion of it?: Works nice as a quickie repair. To my knowledge it is against plumbing code, I only use it for short term repair to be replaced with more permanent type later. As someone else mentioned, pex is coming on strong.

Q: For school, I need to make a creative DNA replica. Being pretty handy, I want to make a ring out of a flattened section of a copper pipe (with sections cut out, compliments of a Dremel tool), and heated to achieve the twisted look, with the ends soudered together. I was planning on achieving said twist by [briefly] exposing the pipe to an open flame, and twisting it with gloved hands. Would this be a hazard, or would this be safe for me to breathe? Also, I was planning on using the flame or a soudering gun for the ‘welding‘ of the ends. Any ideas? Thanks!: Heating the Cu is no problem. Heating the solder is more likely to be problem. If you use new lead free solder, this should not be much of a problem. The fluxes used for soldering are not things you want to breath a lot of but, so long as you are working where there is reasonable ventilation, this should not be much of a problem either. You want to be sure you are using good gloves and that they are dry (steam will penetrate right thru many types of gloves). Be sure to wear safety glasses or a face shield You might want to twist the sides before you solder the steps between them Solder is great for fastening Cu pieces together but solder is typically not very ductile. If you solder and then twist, you might break all the solder joints. A soldering gun will not get to a high enough temperature to weld Cu. It depends on what type of flame you have if you are really going to try to weld Cu. Cu is a very good conductor of heat so it is easier to weld if you have a very intense source of heat (like an arc from a TIG welder). If you still want to use soldered Cu but would like to scale back the degree of difficulty, you might use some Cu wire. Just buy a length of 3 wire insulated Cu house wiring. Strip the plastic insulation off and you have Cu that is easy to bend and cut to length. Cu prices are up so Cu wire is less weight and less cost than Cu pipe. Cu wire is also easier to solder than pipe. Sounds like a fun project. Good luck

Q: Okay someone is selling copper wire. There is a total of 1,000 ft of copper wire and it is brand new and the highest bid is at $74 right now. About how much is copper wire a lb and how much should i buy it for?: Copper wire will fetch you $1 a pound at the scrap yard unstripped... keep that in mind whilst bidding

Q: The air conditioner is only connected with the inner and outer machine, and the copper tube can not be connected. Can the internal machine start up?: Often used in manufacturing heat exchangers (e.g. condensers, etc.). It is also used for assembly of cryogenic pipes in oxygen making equipment. A brass tube of small diameter; used to transport pressure liquids (e.g., lubrication systems, oil pressure systems, etc.) and measuring tubes used as gauges.

Q: i need so solid info on the mettal copper. not where to get them.if you have good sights then can you give the site please: Look on Google, or any search engine. Here are a few tidbits about Copper to help you: Physical properties of Copper: Phase solid Density (near r.t.) 8.96 g·cm?3 Liquid density at m.p. 8.02 g·cm?3 Melting point 1357.77 K (1084.62 °C, 1984.32 °F) Boiling point 2835 K (2567 °C, 4643 °F) Heat of fusion 13.26 kJ·mol?1 Heat of vaporization 300.4 kJ·mol?1 Heat capacity (25 °C) 24.440 J·mol?1·K?1 Name, symbol, number copper, Cu, 29 Chemical series transition metals Group, period, block 11, 4, d Appearance metallic red/orange Standard atomic weight 63.546(3)?g·mol?1 Electron configuration [Ar] 4s1 3d10 Electrons per shell 2, 8, 18, 1

Q: I would like to know the process of smelting copper and how it works.A short and simple explanation will do :): Smelting copper is the process of converting copper ore into pure copper metal. Most copper ores are either oxide or sulfide salts of copper, so reduction by charcoal is a common way of isolating the copper metal. Sulfide ores are first roasted in air to produce the oxide (such as this reaction with chalcocite, the most valuable of the copper ores): 2Cu2S + 3O2 --> 2SO2 + 2Cu2O The oxide ores are then reduced to the metal using charcoal: 2Cu2O + C --> CO2 + 4Cu At this point, the metal can be further purified by electrolysis - using an electrical current to partially melt the metal while the impurities remain solid.

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