HIGH-TEMPERATURE-RESISTANT AND LONG-LIFE WELDING CONTACT TIP, MANUFACTURING METHOD THEREFOR, AND USE METHOD THEREOF

摘要

A processing method for a high-temperature-resistant and long-life welding contact tip, comprising: 1, processing a gap (1) in the front section of a contact tip; 2, first processing a thick gap to obtain the gap (1); and 3, connecting two conductive combination blocks (27) by means of interference fit. Also provided is a high-temperature-resistant and long-life welding contact tip, wherein 1, the front section of the contact tip has upper and lower high-strength conductive blocks (5), and the conductive blocks (5) have good stability in a high temperature environment; 2, the front section of the contact tip has a thickened conductive block (8), and the width of the thickened conductive block (8) is less than that of a welding wire; 3, the front section of the contact tip is an elongated cylinder, and the head of the cylinder is a conductive head (11) and a conductive hole (12). Also provided is a use method of the high-temperature-resistant and long-life welding contact tip, comprising: 1, after the conductive blocks (5) are worn, and pressing the conductive blocks (5) inward to keep the welding wire in good contact with the conductive blocks (5), and repeating this process, so that the service life of the contact tip can be increased several times; and 2, after the conductive hole (12) is worn, squeezing the conductive hole (12) inward to make the conductive hole (12) smaller, and repeating this process, so that the service life of the contact tip can be increased several times or even more than ten times.