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:i made the mistake of using coppersafe in my saltwater tank and now i want to add invert i have been putting anemones and they are dying i have done at least 4 water changes of 20% each and they are still dying on me what should i do, i did a copper test and is coming up for what i can read close to 0 ppm, thanx for ur help: I would use CupriSorb, as it's specifically designed to remove copper. Instead of adding anemones, I would add a few hermits or snails after your copper level is down to 0, to see if the water is truly safe for invertebrates. The API test kit is okay, but if you want to try something a little better, go with the Red Sea copper test kit. It's more precise and easier to read. Again, just be sure there is no trace of copper, as even a small amount can be lethal to anemones. And, if I may add to the banter above, rust won't harm your saltwater tank. Most phosphate removers contain some form of ferric oxide which is basically rust itself. I would still go with the CupriSorb though, as you will probably find it more effective. :) Regards

Q:rare coins,copper piping, whatever else?: Copper is attacked by weak acids (verdigris) and sulfur compounds (tarnish), but after lengthy intervals the copper patina forms a second coating considered to be a mark of genuineness of age, which should not be removed in the normal state.

Q:normally use regular methods and a mapp torch on 1/2 pipe. Curious if it‘s worth using the combo flux and solder to speed things up in tight areas.: Solder paste is made up of microscopic balls of solder suspended in a thick flux. It has the appearance of gray or silver cake frosting, and sometimes has an of yellow tint from the flux. I am not a plumber and I have never used this on pipes. Frankly I did not know it was available for the purpose. I have used the lead based version of this product for more industrial applications. It is potentially very dangerous. The problem is the microscopic balls. Once freed from the flux, usually by washing, these little buggers are so small you can't really see them with the naked eye. They will embed them selves into pours and fingerprints, and contaminate every thing you touch. Additionally once in the body the small size makes them easy to digest and absorb into the blood stream. We had a heck of a time cleaning these nasty little bugger up, and the mandatory blood test were no fun ether. Again, I want to point out that my experience was with led based solder paste, not a silver based solder paste. If you have a led based solder paste, please consider turning it in to your local hazardous waste facility. If you have a silver based solder paste, I don't know if there are any health ramifications from digesting it, but you will probably end up digesting some minute amount of it now matter how careful you are. Just because there are so many of those little balls waiting to start rolling around and sticking to things.

Q:Where are copper pipes mainly found?: they were often used for plumbing projects of various kinds. carry clean water, set up a moonshine still, carry out drain and waste water science labs b/c of durability, and minimal interaction with other stuff. plumbing store? {sorry, couldn't resist.} metal recycling places {couldn't leave that one out, either}

Q:im making a xylophone with copper piping and i need to know if there is resonance when i hit the copper piping with a mallet: Copper does resonate (like all other metals) and is regularly used to make the xylophone bars. A metal xylophone is called a marimba. I've used both copper and aluminum to build custom xylophones of different sizes. Hardwood is another material you can experiment with to create a simple box resonated xylophone.

Q:my dishwasher has a copper pipe.is it easy to disconnect the copper pipe?: is this the builder that built your house? and is this warranty work?, because you shouldn't have to do anythingif there doing a repair on their own work there the ones responsible to do what it takes to make it right.

Q:A copper pipe has an inside diameter of 3.00cm and an outside diameter of 5.00cm. What is the resistance of 10.0m of this pipe?copper‘s resistivity 1.72 x 10^-8I can‘t seem to solve this problem. I‘ve tried to do the RpL/A for both the diameter inside and outside then subtract it, but it still isn‘t the correct answer. Please help me with this! Thank you! 10 pts for the best answer!!!!: Area of OD (0.025m^2) x pi 0.00196375m^2. Area of ID (0.015m^2) x pi 0.00070695m^2. Cross sectional area of conductor (0.00196375 - 0.00070695) 0.0012568m^2. L/A (10/0.0012568) 7,956.715468. (7,956.715468 x 0.0000000172) 0.000136855 Ohm.

Q:I'm making an Indian lamb shank dish tonight and want to reheat it tomorrow in a decorative copper serving dish and lid I have...and serve it direct from the oven in the pot. Is this oven safe or is it only for placing the food in afterwards? The handles look oven-friendly.: I wouldn't. Copper reacts with some foods and the result could be unfortunate for the diners and perhaps for the serving dish since copper is a poison. Cooking utensils made of copper are lined with tin or stainless steel so there's no reaction between food and copper. The dish can probably take the heat of the oven but it should not be used for heating or storing food. Decorative copper also often has a lacquer coating which should not be removed unless you want to have to polish the dish and that coating might be affected by heat.

Q:Question about running copper pipe that overlap?: I'm not familiar with that kind of bit, but could your problem be solved simply by getting a pair of those rubber bit guards? It would only cost a couple of dollars to find out.

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