Welding process in welding production process
Release time:
2022-12-29
【Summary Description】 (1) the content of the development of welding process 1) Reasonably select the welding method and determine the corresponding Welding materials. 2) Select reasonable welding parameters, such as electrode diameter, welding current, arc voltage, welding speed, welding sequence, number of welding layers, etc. during arc welding; Submerged arc welding shall also specify flux type; Gas shielded welding shall specify gas type, flow rate, wire extension length, etc. 3) Formulate other measures and specify parameters, such as requirements for preheating and slow cooling, requirements for post-weld heat treatment such as post-heat and intermediate heating, and requirements for tire fixtures. (2) The principle to be followed in formulating the welding process is to ensure the quality, that is, the welding joint must meet the requirements of technical conditions regardless of its external dimension or internal quality; Then, the production efficiency should be considered, that is, it should be convenient for welding, good accessibility and few turnover times. The welding parts can be welded at the most convenient position by using tire clamps and mechanized auxiliary devices, or mechanized or automatic welding can be realized, in short to have a higher economic efficiency. In order to optimize economical, high-quality and efficient welding process methods, in addition to the knowledge of welding methods introduced in professional books and materials such as arc welding, electroslag welding, resistance welding and brazing, it is also necessary to understand the production characteristics of various process methods. These characteristics refer to the applicable scope of various process methods, such as the type, thickness, welding position and weld length of basic metal. Requirements for material processing technology and assembly technology, such as groove preparation, pre-weld cleaning, post-weld heat treatment requirements; the requirements for auxiliary equipment and tools required for welding, the complexity of the auxiliary process; the quality of welded joints and their stability; economic indicators, such as labor productivity, equipment investment, etc. The production cost, the labor conditions of workers, etc.
(1) the content of the development of welding process
1) Reasonably select the welding method and determine the corresponding Welding materials.
2) Select reasonable welding parameters, such as electrode diameter, welding current, arc voltage, welding speed, welding sequence, number of welding layers, etc. during arc welding; Submerged arc welding shall also specify flux type; Gas shielded welding shall specify gas type, flow rate, wire extension length, etc.
3) Formulate other measures and specify parameters, such as requirements for preheating and slow cooling, requirements for post-weld heat treatment such as post-heat and intermediate heating, and requirements for tire fixtures.
(2) The principle to be followed in formulating the welding process is to ensure the quality, that is, the welding joint must meet the requirements of technical conditions regardless of its external dimension or internal quality; Then, the production efficiency should be considered, that is, it should be convenient for welding, good accessibility and few turnover times. The welding parts can be welded at the most convenient position by using tire clamps and mechanized auxiliary devices, or mechanized or automatic welding can be realized, in short to have a higher economic efficiency. In order to optimize economical, high-quality and efficient welding process methods, in addition to the knowledge of welding methods introduced in professional books and materials such as arc welding, electroslag welding, resistance welding and brazing, it is also necessary to understand the production characteristics of various process methods. These characteristics refer to the applicable scope of various process methods, such as the type, thickness, welding position and weld length of basic metal. Requirements for material processing technology and assembly technology, such as groove preparation, pre-weld cleaning, post-weld heat treatment requirements; the requirements for auxiliary equipment and tools required for welding, the complexity of the auxiliary process; the quality of welded joints and their stability; economic indicators, such as labor productivity, equipment investment, etc. The production cost, the labor conditions of workers, etc.
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