Welding technology is one of the basic technology of modern industry, shipbuilding welding technology is the key modern shipbuilding technology in hull construction, welding the hull construction of the total working hours, when about 30% to 40%, welding quality to evaluate the quality of shipbuilding important indicator of the efficiency of a direct impact on shipbuilding welding cycle and the cost of ship construction. Therefore, the welding technological progress to promote the development of great significance shipbuilding.
Since the 20th century, early 80s, the former China State Shipbuilding Corporation began research and development in the major shipyards and application of efficient welding technology, after 10 years of arduous and unremitting efforts, the ship and efficient welding technology has made considerable progress and great achievements, to enhance ship construction quality, improving the working conditions, shorter cycle plays an important role in shipbuilding.
With the rapid development of shipbuilding industry, China is to become the world's No. 1 shipbuilding power, China Shipbuilding Industry Corporation, proposed to the 2020 "three-step, quadrupling" development ideas, and products from the conventional ship shipbuilding to high-tech, high value-added ships forward. This requires that welding must be more further development to meet the shipbuilding industry development.
Recalling the China Shipbuilding Industry Corporation to promote the efficient application of welding technology welding technology-based development status of the existing problems are not conducive to development and progress, shipbuilding welding technology for the future planning and development plays an important role. From the current status of view, the efficient welding methods used mainly general welding, double-wire submerged arc welding, FCB side submerged arc welding method, gravity welding, CO2 gas welding, simple automatic CO2 gas shield welding straight angle, automatic CO2 gas shielded welding boxer, SG-2 method of vertical gas welding, welding and so on all kinds of liner side. Of welding high rate of 80%, welding mechanization and automation rate of 65%. The rate of consumption of welding materials, generally as follows: SAW 10%, CO2 gas shielded welding 50%, 15% iron powder electrode, the other for the manual arc welding.
In the future, the promotion and development work, there are several problems should be solved:
The first well-organized and co-ordination of macroeconomic planning;
The second should focus on expanding CO2 gas shielded welding, welding equipment from to provide an update on the number of the guarantee;
Third, we must address the training of skilled workers, improve the efficiency and quality of welding;
Fourth, we should increase the initial technical preparations, combined with the company's growth, development and application of automatic pipe / tube welding, double-sided silk CO2 welding technology, large thick gas welding technology, and INVAR plate welding, aluminum welding LNG spherical tank ship welding technology, welding technology development for the shipbuilding guarantee.