-
Anonymous users2024-02-08Constantan wire is a resistive alloy with copper and nickel as the main component.
Constantan wire. Characteristics of Kangtong wire: it has a low temperature coefficient of resistance, a wide range of operating temperatures (below 480), good processing performance, and good welding performance.
It is mainly used to make electronic components in instrumentation, electronics and industrial equipment. In addition, there is a new constantan resistance alloy, which is the same alloy as copper-iron, which has the same resistivity, basically similar resistance temperature coefficient, and the same service temperature.
Compared with Constantan resistance alloy, Neoconcopper has a low superiority due to the fact that it does not contain ** higher nickel, but the oxidation resistance is worse than that of Constantan. In many aspects, it can replace constantan wire resistance alloy.
Calculation of resistivity of constantan wire:
Calculate the resistivity of constantan wire: let the resistivity be q, the resistance is r, the length of the copper wire to be measured is l, the cross-sectional area is s, then there is q = (r*s) l, use a multimeter to measure the r of the copper wire, there is no multimeter, use an ammeter and a voltmeter to measure the current i and voltage u at the same time, then r = u i
Then use a ruler to measure the l of the copper wire, and use a spiral micrometer (micrometer) to measure the cross-sectional radius r of the copper wire, and get s = *r 2, that is, the square of r multiplied by pi.
Bring in q = (r*s) l to find the resistivity.
<>Shanghai Bingzheng Industry**:
Copper-nickel 14 (NC020), copper-nickel 19 (NC025), copper-nickel 23 (NC030), copper-nickel 30 (NC035), copper-nickel 34 (NC040), copper-nickel 44 (NC050), Menel alloy, copper-nickel alloy plate, copper-nickel alloy wire, copper-nickel alloy strip, copper-nickel resistance alloy, manganese-copper alloy wire, manganese-copper plate, manganese-copper wire blank, manganese-copper thin skin, 6J13 manganese-copper alloy, constantan alloy, constantan strip, constantan plate, constantan flat strip, etc.
-
Anonymous users2024-02-071: Grade 6J40
Two: chemical composition.
Phosphorus ( Sulfur (Nickel (39 41) Carbon (Manganese (1 2) Silicon (Copper (Balance) Iron (Aluminum
Three: the scope of application.
6J40 alloy is suitable for use in AC circuits, as precision resistance, sliding resistance, resistance strain gauge, etc., and can also be used for thermocouple and thermocouple compensation wire materials.
Four: Overview. 6J40 alloy, also known as constantan, is a resistance alloy composed of copper and nickel. Features: It has a low temperature coefficient of resistance, a wide range of operating temperatures (below 480), good processing performance, and good welding performance.
-
Anonymous users2024-02-06<>Shanghai Xiangqia metal team, looking forward to your consultation!
To reduce the cost of the enterprise is to save all unnecessary expenses in the production process of the enterprise. Use every penny where it has to be. In general, reduce production costs. >>>More
Generally speaking, the normal heart rate of the human body should be maintained at 60-100 beats, and the heart rate is more than 90, which is considered to be high. The idea that "the slower the heartbeat, the longer the lifespan" has been controversial, and the relationship between fast heart rate and life expectancy cannot be absolutely determined, but it is certain that too fast a heart rate is not good for health. >>>More
It is recommended to do the following to reduce the burden on the CPU: 1. Check and kill Trojans, malware, plug-ins, repair browsers, ** vulnerability patches, and all-round anti-virus; 2. Free up disk space: 1 >>>More
Natural no ***, the root cause is solved, it sounds like it should be a health care product, or should you go to the hospital for treatment, don't eat seafood for gout, animal offal, bile tofu, beer,
In this way, through the use of modern management tools, better catering services can be provided to employees faster and more accurately. It will assist the canteen to implement more refined management such as more accurate ordering, order comparison and procurement. In order to reduce procurement costs.