![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)
The electrode consists of two parts: the core and the coating. The electrode is coated on the core uniformly and centripetally with the coating (coating) outside the metal core. The welding rods are different depending on the type of electrode. The core of the welding rod is the metal core of the welding rod. In order to ensure the quality and performance of the welding seam, the content of each metal element in the welding core is strictly regulated, especially for the content of harmful impurities (such as sulfur, phosphorus, etc.). The limit is better than the base metal. The composition of the core directly affects the composition and properties of the weld metal, so the harmful elements in the core should be as small as possible.
Welded carbon steel and low alloy steel cores are generally selected from low carbon steel as the core, and filled with manganese, silicon, chromium, nickel and other components (see wire national standard GB1300-77 for details). The reason for using low carbon is that the steel wire has good plasticity when the carbon content is low, and the wire drawing is relatively easy. On the other hand, the CO content of the reducing gas can be reduced, the splash or pores can be reduced, and the temperature at which the weld metal is solidified can be increased. It is good for overhead welding. The addition of other alloying elements is mainly to ensure the comprehensive mechanical properties of the weld, and also has a certain effect on the welding process performance and the removal of impurities.
High-alloy steel and other metal materials such as aluminum, copper, cast iron, etc., in addition to the requirements of the metal core of the weld metal, also control the content of impurities, and often add certain alloying elements according to the process requirements.
The welding rod is a molten electrode for coating electrode arc welding, which is composed of two parts: a coating and a welding core. The chamfer at the front end of the electrode has a chamfer of about 45°, which is for the purpose of arc ignition. There is a section of bare core at the end, which accounts for about 1/16 of the total length of the electrode, which facilitates the clamping of the welding tongs and facilitates electrical conduction. The diameter of the electrode is actually the diameter of the core. It is usually 2, 2. 5, 3. 2 or 3, 4, 5 or 6 mm. It is commonly used as small 3. 2, small 4, small 5 The length "L" is generally between 250^-450 mm.
Ec-spd dimming glass is a new type of electronically controlled tinted light glass developed and produced by using SPD (suspended particle) photosensitive characteristics. It can replace curtains and adjust the light and shade permeability effect, allowing users to freely choose their own indoor light. Hot melt glass, also known as crystal stereoscopic art glass or molten glass. It is the use of glass thermal processing technology, flat glass burning melting, depression into the mold, made into a variety of shapes.
Rear Projection Film imaging is adopted, and the projection effect is very outstanding. The appearance of the partition Smart Laminated Glass is good. Different from the traditional partition materials, the use of Pdlc Film Roll allows our consumers to have a better partition appearance. PDLC Smart Glass Film is a Smart Film Roll that encapsulates liquid crystal molecules in a polymer with a self-adhesive layer.
The installation of the Self-adhesive Film For Glass Door is a technical task. If there is a little carelessness in pasting, air bubbles will appear between the Custom Switchable Film and the glass.
ITO Conductive Film,Smart film For Glass,ITO Film Sheet,ITO Film Roll,Tint Film For Building,ITO Smart Film
Tianqixun Technology , https://www.tqxdisplay.com