What does DC reverse polarity mean?
electrode-positive
Direct current (DC) flows in one direction, resulting in a constant polarity. With few exceptions, electrode-positive (reversed polarity) results in deeper penetration. Electrode-negative (straight polarity) results in faster melt-off of the electrode and, therefore, faster deposition rate.
What does DC reverse mean?
Direct Current Reverse Polarity
Direct Current Reverse Polarity Welding When the electrode is positive and the plates are negative, this results in direct current reverse polarity. The electrons switch directions and go from the base plates to the electrode. Consequently, more heat generates at the base plate as compared with DC straight polarity.
What is the difference between straight and reverse polarity?
“Straight” and “reverse” polarity are common terms for “electrode-negative” and “electrode-positive” polarity. Welding currents with electrode-positive (reverse) polarity result in deeper penetration, while electrode-negative (straight) polarity has the benefit of faster melt-off and faster deposition rate.
What is DC polarity?
In a direct current (DC) circuit, current flows in one direction only, and one pole is always negative and the other pole is always positive.
What does DC positive mean?
The direction of current flow through a welding circuit when the electrode lead is connected to the positive terminal of the power source and the work is connected to the negative terminal.
What is polarity used for?
Polarity is a term used in electricity, magnetism, and electronic signaling. Suppose there is a constant voltage , also called an electric potential or electromotive force (EMF), between two objects or points. In such a situation, one of the objects or points (poles) has more electrons than the other.
What is negative voltage in DC?
A negative voltage is a relative excess of electrons compared to some other point. If 0 V is no voltage. Negative voltage is an excess of electrons and positive voltage is a deficiency of electrons.
What does DC negative mean?
The direction of current flow through a welding circuit when the electrode lead is connected to the negative terminal of the power source and the work is connected to the positive terminal. Sometimes referred to as straight polarity.
What does DEC positive mean welding?
DCEP stands for Direct Current Electrode Positive or Direct Current Reverse Polarity. In this process, you connect the base metal to the negative terminal of the power source and the electrode to the positive terminal.
Does polarity matter in DC?
Polarity results from the fact that an electrical circuit has a negative and a positive pole. Direct current (DC) flows in one direction, resulting in a constant polarity. Though AC itself has no polarity, when AC electrodes are used on DC they usually operate best on one specific polarity.
What are two types of polarity?
4.6. The polarity condition of the electrodes is of two types, (1) straight polarity and (2) reverse polarity.