What is the difference between oxygen shielded welding and ordinary covered electrode welding? What are the advantages and disadvantages?

Now there are people who doubt the cost of secondary welding?

Don't you know that technology is the primary productive force? !

Let's talk about welding materials first. The second welding wire is one kilogram in 8 yuan and one kilogram in 6 yuan, covered electrode. It seems that covered electrode is very cheap.

You have to see how much filler metal is left in the weld after welding, and the same amount of filler can compare the price.

1. The coating outside covered electrode, and finally welding slag and shielding gas, do not belong to the filler metal.

2, every covered electrode has a covered electrode head, at least 5 cm, must be thrown away, does not belong to the filler metal.

3. covered electrode splashes heavily, and the splattered metal does not belong to the filler metal.

Besides other expenses, covered electrode also needs an oven, a heat preservation barrel, electricity for heating and waste covered electrode head for drying.

Also have to talk about welding power consumption, the same welding effect, the heat input of secondary welding is small, that is, the power consumption is less, and the inverter welding machine saves more electricity.

Let's talk about efficiency and speed first.

1, no need to bake covered electrode, saving time and effort.

2. covered electrode does not need to be replaced, so it is not necessary to start the arc again, saving time.

3, don't knock welding slag, at least reduce a coolie.

4. As far as welding speed is concerned, secondary welding is three times that of covered electrode. (just this one, one welder can top three, you calculate, how much money is saved by labor! )