In recent years, as metal materials have become more and more widely used in various fields of production and life, the problem of material failure has become increasingly prominent. Material failure mainly refers to the inability of the mechanical component to complete its intended function due to ...
In the current ferrous metal materials, CO2 gas shielded welding is one of the most important welding methods, using carbon dioxide gas as the shielding gas for welding. During the welding process, most of the welding wire melts into molten metal and transitions into the molten pool, but a part of t ...
In the production of medium manganese anti-wear ductile iron parts, common casting defects include the general defects of gray iron and ductile iron, as well as excessive carbide content or continuous network distribution, sorbite content and austenite content. Too high. Generally, the reasons for t ...
The inoculation amount is generally determined according to the metallographic structure of the product. The metallographic structure to be considered mainly includes the shape and length of graphite, whether there is cementite, and the content of pearlite. ...
After analyzing and summarizing various possible causes of excessive carbon content in the production of low carbon steel castings in lost foam, the design of the production process and technical parameters of the production of low carbon steel castings in lost foam was modified and adjusted to crea ...
The spheroidization level of domestic ordinary spheroidal graphite cast iron castings is required to reach level 4 or above, (that is, the spheroidization rate is 70%), the spheroidization rate achieved by the general foundry is about 85%. In recent years, with the development of nodular cast iron p ...
In the production of malleable iron castings, common casting defects include shrinkage cavity, shrinkage porosity, porosity, pores, cracks, sticky sand, rough casting surface, shrinkage, eccentricity, wrong shape, insufficient pouring, mold leakage, gray mouth, pitting , Anti-white mouth, too thick ...
Most of the unmelted and coarse graphite particles are suspended on the surface of the molten iron near the furnace wall when energized, and some are attached to the middle of the furnace wall, which is equivalent to the dead corner of stirring ...
In the production process, foundry enterprises inevitably encounter casting defects such as shrinkage, bubbles, segregation, etc., resulting in low casting yield, and re-reflowing production faces a large amount of manpower and electrical energy consumption. How to reduce casting defects is an issue ...
In order to reduce the inclusions in the molten steel, during the smelting process, it is necessary to strengthen the smelting operations such as deoxidation, desulfurization, impurity removal, and degassing, and take necessary measures in the ladle behind the furnace, such as adding rare earths, et ...
Coated sand casting has a long history in the foundry field, and the output of castings is also quite large; however, the use of coated sand casting to produce precision steel castings faces many problems: sticky sand (scarring), cold barriers, and pores. How to solve these problems remains for us t ...
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The thread cutting process depends on the structure of the machined parts and the CNC machine tool u
Oval gears are widely used in automatic machinery and instrument industries, and are a type of non-c
The cylinder telescopic sheath is a protective component that is installed on the oil cylinder, cyli
The manufacturing cycle is long. Operators are prone to fatigue. Once a failure occurs, it often tak
The Wu Steel Works has two workshops, one steelmaking workshop and the second steelmaking workshop.