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What's the color of the copper core section of the cable?
- Your cable is not pure copper. Some cable is used for copper, some oxygen copper, there are some copper clad aluminum alloy.......s
Construction and technical parameters of LED lamp
- Color: conventional color: warm white (WW), 2700-3200k (NW) 4000-4500K, the natural light is white (PW), Leng Baiguang 6000-6500K (CW) cold white 7000-7500k [here cold white difference and jewelry, cool white jewelry light is generally 15000-20000K] in addition, red, green, blue and other single color lamp Chang can do.s
What can not be used for fuse?
- When the current flows through the conductor, the conductor will be heated because of the resistance of the conductor. And heat follow this formula: Q=0.24I2RT; Q is the heat, the 0.24 is a constant, I is the current flowing through the conductor, R is the resistance of a conductor, T is the current through the conductor time; so the formula we can see that the principle of simple fuse. A fuse that determines the resistance of a fuse when its material and its shape are determined, regardless of its resistance temperature coefficient (R). As the current flows through it, it heats up and increases with time. The size of the current and the resistance heat generating speed, fuse structure and its installation condition to determine the heat dissipation rate, if the speed is less than the heat generated in the heat dissipation rate, the fuse is not fuse. If the rate at which heat is produced is equal to the rate at which heat is dissipated, it will not fuse for a considerable length of time. If the rate of heat generation is greater than the rate of heat dissipation, the heat will increase. And because it has a specific heat and mass, the increase in heat is reflected in the rise in temperature. When the temperature rises above the fuse point, the fuse will fuse. That's how the fuse works. You should know from this principle that you must study the physical characteristics of your chosen materials carefully and ensure that they have the same geometric size when designing and manufacturing fuses. Because these factors play an important role in the normal operation of the fuse. Also, you must install it correctly when you use it.s
Why is aluminum wire difficult to react with dilute sulfuric acid by hydrochloric acid reaction?
- Hypothesis: Aluminum Sulfate Precipitates attached on the surface of aluminum to stop the reaction to continue the experiment design: take a bar for a period of time, immersed in dilute sulfuric acid, to see bubbles continue to build out, wash or scrape the surface of aluminum white material, aluminum strip again immersed in dilute sulfuric acid, if again bubble formation the hypothesis that.s
How to remove the thick dirt on the iron pan?
- Most housewives wash pot only wash do not wash the bottom surface is wrong, because the bottom covered with inverted vegetables when he returned alone, if not always wash residue at the bottom, bottom thickness gradually thickening in the course of time, the effect of cooking heat, so must be positive and negative, washed and then placed on a stove fire drying to remove water, next time also convenient.s
How to remove the black dirt in the iron pan?
- Orange method. Tell an orange cut into 4 pieces, put it in the pot, add water and boil for 10 minutes, then turn off the fire and soak for 2 hours, then scrub it with a pan cloth.s
Common causes and treatment of LED light flashing
- This is the bad contact LED lamp gold or aluminum wire, usually, a welding wire connecting wire, arc welding off, if the two did not fill ball there may be two welding welding.s
How can I change the fuse?
- Look at the power you need to pull the housing set, the total gate of your own house, otherwise there will be electric fuse, also has many kinds, common is your story, connect the two screws through two wire, power screw feeding screw for new aluminum wires
Substantial Growth in Automotive Applications of Aluminum Sheet
- New research shows that the future of automotive aluminum sheet demand will grow at an unprecedented rate. 2014 and 2015 is considered to be an turning point that steering the auto...
What the Hheck is: Polyester Cloth
- What the heck is: Polyester ClothAnother article in our: “What the heck is” series, brought to you by OKOrder.com, China's leading B2B E-commerce platform.What is it?Polyes...
The Advantages of Aluminum Foil Used in Cooking
- Aluminium foil used in cooking is itself non toxic. But it is worth noting that the practice of wrapping some meats on the barbecue in aluminium foil to prevent burning or overcook...
Automotive Aluminum Plates Technology and Equipment
- Automotive aluminum production core technology is in a continuous annealing heat treatment and surface treatment, furnace, hot rolling mill, coiling machine, cold rolling mill and ...
The Application Areas of Aluminium Alloy
- Aluminium is the industry's most widely used non-ferrous structural material and has been widely used in aviation, aerospace, automotive, machinery manufacturing, shipbuilding ...