Compared with austenitic stainless steel, ferritic stainless steel has a higher yield strength. Under the same working conditions, materials with smaller cross-sections can be used to save costs; in addition, ferritic stainless steel does not contain Ni (special ones contain only a small amount) ), ...
The rotor is one of the core components of large steam turbine equipment. At present, there are mainly three manufacturing methods: set, whole section and welding. Compared with the previous two methods, the welded rotor has flexible design, compact structure, light weight, good rigidity and operati ...
The rudder stock is the shaft on which the rudder blades rotate. The rudder blades are rotated by the rudder stock, and the rudder blades bear the reaction force of water to make the ship turn. The rudder stock is made of cast iron, copper and steel. Among them, the most common material of steel is ...
Heat-resistant materials such as heat-resistant steel and heat-resistant alloys are widely used in components such as engines, internal combustion engines, thermal power generation boilers, turbines, waste incineration treatment equipment, heat treatment furnaces, heaters, etc., and are indispensabl ...
Welding production efficiency and welding quality directly affect the production cycle, cost and hull quality of ship processing and manufacturing, so welding technology has become a key technology in ship processing and manufacturing and the development of the shipbuilding industry. Compared with t ...
The use of non-quenched and tempered steel instead of quenched and tempered steel to manufacture various important parts can omit the quenching and tempering treatment that consumes time and increase carbon emissions. It also has the advantages of no heat treatment defects, uniform performance along ...
Energy-saving and efficiency-enhancing is an important topic in the field of gear heat treatment. It is explained with specific cases that process optimization is one of the effective means for heat treatment to save energy and reduce consumption. Under the premise of meeting technical requirements, ...
Compared with gray iron, the tensile strength of vermicular iron is increased by at least 70%, the modulus of elasticity is increased by 35%, and the fatigue strength is nearly doubled. Compared with aluminum alloy, the strength and rigidity of vermicular iron are twice higher, and the fatigue stren ...
Iron mold sand-coated casting is a casting process in which a thin layer of sand is covered on the inner cavity of a metal mold (called an iron mold) to form a mold. Because the sand coating layer is relatively thin (4～8mm), it is economically reasonable to use more expensive high-quality modeling m ...
Electromagnetic pure iron is a widely used soft magnetic material. It has high magnetic induction and is suitable for making magnetic parts that work in a strong magnetic field. Electromagnetic pure iron materials are cheap, and the heat treatment process is simple. At present, they are widely used ...
At present, small foundries occupies an important position in my country's foundry production, but there are common phenomena in small foundries such as low level of technology, low grades of castings, low labor productivity, and harsh environment, which severely restrict the development of my count ...
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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.