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?

If it is not used in soldering, brazing is used, the efficiency is relatively high, but the price is a little high. Electric iron will set 300-400 degrees on the line, the temperature depends on the speed of your action, welding action faster, the temperature is higher.

Q:Difference between high purity oxygen free copper core and pure copper core

In fact, the two kinds of copper are the same, just name different, high-definition line key is enough line diameter, shielding good

Q:In addition to the wires in the house, where there is copper wire?

There are copper wires in household appliances

Q:Copper wire fracture reason: copper wire in the solder interface fracture, cross section is round (no deformation marks), the section is uneven, who knows the cause of the fracture?!

Tin dipping temperature, i.e. the temperature you don't tin is too high, not too long time dipping tin bronze layer will be formed, otherwise relatively thick, more like bronze wire, more easily broken. Low temperature, not only to save energy, the boss happy, is environmentally friendly, lead steam evaporated tin less workers being exploited at the same time, can be slightly less toxic, favorable to the satisfaction of all, harmonious.

Q:Will the weight change after the copper wire is burned?Is it heavy, light, or unchanging? What is the reason?

It becomes heavier. The copper wire is heated and combined with oxygen in the air to form black copper oxide. Of course, it is heavier than before

Q:What bending copper wire?

When the utility model is used, the coil is electrified by a conducting wire, and the gravity force is generated on the platen after the power is switched on so as to realize the clamping of the thin plate between the pressing plate and the base.

Q:The characteristics of wire and copper wire

Don't know what is the reason you asked this question, the differences between the iron and copper in many aspects, from the classification point of view, you should solve physics class of problems. It may be useful to you different resistivity parameter is iron and copper, iron and copper with high resistivity;

Q:Cable bridge, each section of the joint, there is a copper wire to prepare flat belt connected

The cable bridge is provided with a copper wire at each juncture and is connected with a flat belt, and is a bridge grounding jumper cable.

Q:Is it safe to use copper wire instead of electric leakage protector?

The number of household electrical appliances and electrical equipment (such as power supply) most of the metal wire used in tubular fuse is made of copper wire. On the contrary, lead and antimony in the circuit of the fuse if the normal operating current selection circuit of the maximum rated current than the much larger, but it is not safe. Based on the above, I think this sentence seems to be so: the conductor in the lighting circuit do not rated working current and maximum fuse current in the circuit is much larger than to replace the fuse, otherwise will not be able to play the role of insurance,

Q:Why change the thickness of copper wire can not change the current size of electromagnetic induction?

In fact, the current still varies because the wire thickness changes the resistance of the wire, but this change is very small (below 1 ohms), so it is difficult to detect this change when we test the current