In low pressure casting, the mold is placed on a closed holding furnace, and the cavity is communicated with the metal in the furnace through a riser pipe. When working, add pressurized air to the furnace, and the molten metal will flow into the cavity from the riser pipe. ...
With the increasingly demanding demand for steel performance, the market demand of clean steel is increasing, which has a direct impact on the material, design structure, production process and management innovation of refractory materials closely related to the development of steel smelting technol ...
The initial carbon content of stainless steel smelting is relatively high, which improves the activity coefficient of phosphorus and reduces the activity coefficient of chromium, which is beneficial to dephosphorization and chromium preservation. The initial carbon allocation of some foreign manufac ...
High-nitrogen stainless steel refers to a steel with a ferrite matrix with a nitrogen content of more than 0.08% (mass fraction, the same below) or an austenite matrix with a nitrogen content of more than 0.4%. High nitrogen stainless steel has many advantages, such as high strength and toughness, g ...
Experience of excessive stress, deformation, and cracking. Wuhu Ruihu Casting Company is conducting experiments and explorations in cleverly using casting experience and technology to effectively solve the problem of dimensional instability caused by casting deformation. It is expected to provide a ...
With the rapid development of my country's steel industry, my country's annual pig iron output reached 660 million tons in 2012, accounting for nearly 60% of the world's annual output. This has led to an increasingly tight supply of mineral resources and rising prices of raw materials and fuels; on ...
Strip defect is a serious metallurgical defect on the surface of cold-rolled sheet. This type of defect extends along the rolling direction and is silver-white or black in the shape of thin lines, strips or bands, accounting for about 80% of the metallurgical defects on the entire surface. . ...
Affected by the casting process, the chilled low chromium molybdenum ductile iron roll has a relatively large casting stress in the as-cast state, so stress relief annealing treatment is required. Practice has shown that the stress relief annealing temperature not only affects the degree of casting ...
On-line direct quenching-tempering process (DQ-T) is gradually used to produce high-strength steel, which eliminates the reheating process of traditional heat treatment, and gives full play to the role of alloying elements to improve hardenability, which greatly improves the production efficiency an ...
Out-of-furnace refining is an important part of the modern steel production process. The quality of steel depends largely on the out-of-furnace refining process.The addition of ferroalloy will play a role in deoxidizing and alloying molten steel. Among them, the manganese ferroalloy is the ferroallo ...
Internal high pressure forming is also called hydroforming or hydraulic forming. It is a material forming process that uses liquid as a forming medium and controls internal pressure and material flow to achieve the purpose of forming hollow parts. ...
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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.