Oxygen-free Copper Busbar With High Conductivity

Oxygen-free Copper Busbar 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: Will the price of copper ever go up like silver and gold ?: Total world production is about 15 million tons per year. Copper demand is increasing by more than 575,000 tons annually and accelerating. Based on 2006 figures for per capita consumption, Tom Graedel and colleagues at Yale University calculate that by 2100 global demand for copper will outstrip the amount extractable from the ground. China accounts for more than 22% of world copper demand. However copper is often recycled so the supply of copper from scrap would increase as the price increases. Secondly, as the price rises, the industrial world has an incentive to substitute other metals for copper. For example the humble US cent - once made 95% from copper is now.. Copper-plated zinc, 1982 to date. In mid-1982, the coin's composition was changed again, this time to copper-plated zinc. The last mostly-copper cents (95% copper metal composition) were produced by the Denver Mint on October 22, 1982. The copper-plated coins are still being produced today. They are composed of an inner core alloy of 99.2% zinc and 0.8% copper with an outer plating of pure copper, for an overall composition of 97.5% zinc and 2.5% copper... (wikipedia) So you can't say never but the possibility is very remote.

Q: It wont come off as coupler type thing stopping it, but wont slide back down the pipe eather. I need to stop it leaking so want to remove it and refit: use lots of wd40. let stand for 30min.then work it off.

Q: I have a bmx bike and it is copper and I want to put some color parts but don't know which colors will go with copper.: Copper loves turquoise and green and coral. Look at north american indian jewelry and find the colors you want there.

Q: Would you want to remove the temperature sensor on the indoor machine of brass, a hole, the inside of the refrigerant ran away, not coolingWhat method can plug the hole, AB glue, electric iron can not?Or how much would it cost to ask someone to weld them?Then you can add the refrigerant again, right?: If the hole is not too large, it can be filled; use brazing to fill it; other types of materials or methods do not solve the problem.Air conditioning during normal use, low pressure pipeline in the refrigerant pressure more than 5 kilograms in the high-pressure refrigerant pressure above 15 kilograms, with ordinary glue, hot melt soldering, the ways to do the pressure bearing performance, even if the bearing performance can do air conditioning during the operation of the pipeline will be vibration occurs, will soon leak again.The hole is not large, when the need for brazing to fill the hole in the pipeline before the refrigerant recovery or to let go all the outdoor machine inside, remove the holes in the copper brazing, the flame temperature due to increase, by welding to trap quickly, after completion leakage should give air conditioning with high-pressure gas leak detection in general, high pressure gas pressure above 30 kilograms, then vacuum, filling the standard amount of refrigerant.If the damaged hole is larger, it can not be welded to fill the hole, the pipeline should be broken in the broken place, welded joints with joints to connect, or directly replace the new brass tube.

Q: I am currently working on a project building an evaporative (swamp) cooler and am looking for 2&quot; diameter and 3&quot; diameter copper pipe. I have looked at plumbingsupply but their prices seem a bit steep.I also need a few reducing tees and reducing couplers. Any help?: difficult issue. look over yahoo. that will may help!

Q: Besides being a good conductor, why are copper pipes used in underfloor heating?: go to autozone or one of the other major auto parts stores and they can run a quick OBD II diagnostic check and tell you what it is.

Q: what is the current rate for copper I have a bunch of copper pipe I need to take in!!!!!!!: I'm thinking you'll get around $5.00 a pound for it. But you should be able to look up a recycler in your area and get a quote on line!

Q: ok so i am doing a report on copper and i need some questions that i can talk about and anwser....already i have where it is mostly from, things that are made from it and its history...what else should i talk about??????....i need help!: think of back. decide for underfloor heating. No radiators everywhere and shop area. the homestead will sense warmer because of the fact the warmth comes from the floor upwards incredibly than radiators. Underfloor piping is a mixture of plastic and aluminium. I set up piping and generally use a mixture of the two. Plastic to get underfloor without elevating floor boards everywhere. Copper the place i'm able to get the piping down and the connections are plenty extra cost-effective to do. certainly i choose copper pipes to all radiators plastic seems grotesque. Regardless in case you have sturdy flooring be particular that the pipe is wisely put in in conduit and you will replace the piping sooner or later. notice copper dealing with partitions/concrete the motar eats into uncovered copper over the years and motives leaks and any plumber who says he has secure the pipe with slightly bit duct tape is a liar. my own own determination in my own house is i would not set up timber or tile flooring in any room because of the fact which you will continuously could pass below floor if not for piping then electrics or another reason so i would not entertain it.

Q: i have copper rings that turn my finger green i asked people and said that those are my toxins: No, the green is not the result of toxins in your body coming out. Copper naturally turns green when it oxidizes. That's a fancy word for rust. Metals react with oxygen to for an oxide. If the metal is iron, then the rust is red. If it's copper, the rust is green. Your copper rings leave a green stain on your fingers because they are reacting to the water you sweat. There isn't any way to leach toxins out of the body. The body naturally eliminates some things through urine, sweat and stool. The true toxins- things like heavy metals - lead, etc, can only be removed from the body through a process called chelation. That requires some pretty heavy duty chemicals that have to be given by intravenous infusion, in the hospital, while you are monitored constantly by doctors who are experts at the process. Nothing you wear, eat or drink will do the trick. What you have is a case of copper rust staining on your skin- nothing else.

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