AGER55 the wire and steel for high strength gas, with the characteristics of low-carbon chromium-containing weld has good resistance to atmospheric corrosion, apply to the Welding Electrode of high strength steel vehicles, buildings and other structures. The steel tone aluminum for low-carbon steel, steel purity requirements, the complexity of the smelting process. Casting casting fluidity of molten steel, submerged nozzle prone to "sets of eyes" phenomenon. To this end, the plant from the smelting, refining, continuous casting process carefully organized and fully prepared. Production technology department careful study of the steel characteristics, conscientiously sum up the experience in production, and work out the detailed points of the production process and production plan: Converter Front strict technical discipline, and control the end of the carbon hit rate and composition of the qualified rate; refining process using programmed aluminum, measures to ensure that sufficient refining time, to ensure the stability of the purity of the steel composition and temperature of the package; The Billet workshop to strengthen management, to strengthen the standardization of operation, according to the characteristics of AGER55 low-carbon, the use of low-carbon fluxes and pay attention to the full protection of the casting process. To ensure the success of this the φ5.5mm limit Specifications rolling, high-wire unit controlled rolling and cooling process for the experimental selection, strengthening equipment inspection, maintenance of the preparatory work of spare parts for accuracy and process to achieve a stable rolling smooth production.Production and development of AGER55 high-level Welding Wire rod "for the safety of steel to enhance the intensity level of the wire steel, enriching the product line, has taken a firm step.
The implementation of the Carbon Steel ElectrodesGB/T5117-1995 standard. The Carbon Steel Electrodefor carbon steel and low-strength low alloy steel. Select the electrode based on the steel chemical composition, mechanical properties, crack resistance requirements, taking into account the comprehensive analysis of welded structures, plate thickness, working conditions, stress, welder performance and other factors. Necessary, to do the welding test, formulate corresponding measures to determine the selection of the electrode. Carbon steel welding is generally used in steel strength grade corresponds to the electrode, taking into account the complex structure, slab stiffness, dynamic load, poor solderability, is generally used, good plasticity, impact toughness and good crack resistance of low hydrogen type electrode. Special requirements of the welding position, using the corresponding special electrode, such as vertical down welding rod, Carbon Steel Welding Electrodethe base electrode. Iron powder type electrode can be used to improve the welding efficiency. â’‰ fast on the weld cooling rate, increased strength, weld cracks easily, lower than the parent material strength level electrode can be used; between the low-carbon steel and low alloy steel, dissimilar steel welding is generally used with low strength grade steel electrode, and considering the factors of low-alloy steel, in order to use low-hydrogen type is appropriate. â’Š welding of medium carbon steel, due to higher carbon content of steel, increasing the tendency of welding cracks, generally used in low-hydrogen electrodes and preheating and slow cooling method and adapt welding processes and other measures. â’‹ cast steel weldable poor generally higher carbon content, the workpiece Heavy, complex structure, easy to produce a weld crack cast steel alloying elements for a long time, it is more prominent. Generally used in low-hydrogen electrodes, and to take measures to warm-up, slow cooling method and the corresponding welding process. â’Œ as to ensure the quality of welding, the workpiece weld should be clean, not allowed to have oil, rust, water, paint and dirt, is particularly important to use low-hydrogen electrodes. â’ low hydrogen type electrode, Welding electrodes shall be subject to 350 ° C baking 1h as baking, or easy to produce pores folder slag, cracks and other defects. Cellulose electrode without baking in general, if damp, temperature welding instructions provided before baking, but the temperature will destroy the electrode welding performance. Welding current specified in â’Ž instructions as a reference value, the actual operation should be specific to master, such as workpiece preheat than normal current 5% to 15%; vertical welding and overhead welding flat welding current 10% to 15%; DC than AC decreases about 10%. Attention to the instructions provided in DC welder, welding class nature, or affect the welding process. â’ low hydrogen type electrode generally should not be repeated baking to prevent drug skin crisp, fall off.