Q:Why did the copper wire turn black after it was burned?

Because it has become copper oxide, copper oxide is black

Q:0.4mm copper wire and 0.2 copper wire welded together. Can electric iron be used for welding directly? How many degrees do you need?

But to do this effect of welding crafts, the efficiency is not expected to be fast, and the joints of the flux to clean it.

Q:Want to know what equipment will be needed for copper production, how much money does it cost?

Single core cable with extruded, extruding or vertical wrapping, sulfide (make sulfur in rubber to form sulfur Lian, the rubber line).

Q:What's the difference between hard core copper wire and soft wire copper wire? Which is better?

Construction of hard copper wire is more convenient than soft copper wire. Hard copper wire, beautiful appearance, soft copper wire to general layout to beautiful.

Q:The net is inserted into the crystal head. Do you want to leak the copper wire first?

Orange, white, orange, green, white, blue, blue, white, green, brown, white, brown. If it is a jumper, it does not matter, both ends in the same order!

Q:What belongs to the plurality of soft copper wire

Copper conductor PVC insulated flexible sheath wire.Commonly used PVC insulated wires are: BV, BLV, BVR.

Q:The copper wire in the charger is broken. Why can you use it?

Wrapped with adhesive tape, continue to use, electric immortal, rest assured that the voltage is 5 volts and more, but not bad money, then buy a bar

Q:What's the use of braided soft copper wire?

Can be used for the installation of the transformer, high voltage switchgear, electric vacuum, sealing groove, generator and bus, rectifier equipment, the connection between the connection and the bus between the rectifier and the isolation switch.

Q:Beautiful electromagnetic oven TM-S1-01 main board, Kang copper wire current detection function?

After checking the pot, it will take 1 seconds to detect the change of the current, and determine the material, size and size of the cooker through the difference of the current

Q:Why are the copper wires in the wires wrapped together like copper wires like hair?

V is PVC PVC, that is (plastic)L is the code for the aluminum core"R" means "soft". To be soft is to increase the number of conductorsBV: copper conductor PVC insulated wireBLV: aluminium conductor PVC insulated wire