2023-11-02 Steel World Comments Off on The function, capacity and type of gas cabinet
The gas cabinet is one of the important equipment in the converter gas recovery system. It is mainly used to store the recovered converter gas so as to supply users with gas with stable composition an...
2023-11-02 Steel World Comments Off on Basic principles and optimization plans of ultra-high pressure pneumatic pressure reducing valves
Abstract: This article introduces the working principle, main structural design calculation and test conditions of the ultra-high pressure pneumatic pressure reducing valve, and analyzes the structura...
2023-11-02 Steel World Comments Off on Experimental study on the internal flow field of deep well pumps
Studying the flow field in the pump, especially the mixed-phase flow field, is the key to improving the performance of deep well pumps. As PIV technology, LDV technology and ultrasonic technology beco...
2023-11-02 Steel World Comments Off on A brief discussion on the application of anti-water hammer pressure tanks in reducing water hammer during pump shutdown
A discussion on advantage of air chambers for water hammer for diminish water hammer when cut off pump. (Nanchang Engineering &Research Institule of Nonferrous Metals Nanchang 330002) This paper i...
2023-11-02 Steel World Comments Off on What are the calcining processes of siderite?
The main component of siderite is ferrous carbonate, which is generally in the form of granular crystals or dense blocks, spheres, and gels without crystals. The color is generally gray-white or yello...
2023-11-02 Steel World Comments Off on Iron ore magnetic separation innovative technology innovative technology—mineral magnetism
Magnetism is one of the fundamental characteristics of matter. Among more than one hundred known elements, three elements, iron (Fe), nickel (Ni), and cobalt (Co), are ferromagnetic. Compounds contain...
2023-11-02 Steel World Comments Off on Application of steel-plastic composite pipe fittings in naphthenic acid plants
The high corrosion rate of pipe fittings in naphthenic acid plants has always been a hot and difficult issue in anti-corrosion of domestic refinery equipment. Due to corrosion, the unit cannot run smo...
2023-11-02 Steel World Comments Off on Steam consumption
Steam is mainly used in the steel rolling workshop for: flushing gas pipelines, keeping lubricating oil warm in winter, heating the pickling solution and water washing tank in the pickling section, co...
2023-11-01 Steel World Comments Off on Research and practice on indoor gas pipe installation
With the continuous improvement of people’s living standards, the decoration of bedrooms is becoming more and more beautified. It is the minimum requirement for decoration to bury various indoor...
2023-11-01 Steel World Comments Off on Requirements for molten steel composition in thin slab continuous casting
Compared with traditional slabs, the heat flow in the mold of thin slab continuous die casting is large, and the solidified billet shell near the meniscus generates higher surface tension, which often...
2023-11-01 Steel World Comments Off on What is stainless steel flange standard
Standard standards for commonly used stainless steel flanges: (PL, SO, WN, BL, Th) Italian stainless steel flange standard: UNI2276, 2277, 2278, 6083, 6084, 6088, 6089, 2280, 2281, 2282,...
2023-11-01 Steel World Comments Off on pull
Drawing is a metal plastic processing method in which the blank is pulled through a tapered die hole to reduce the cross-section to obtain products with precise dimensions and smooth surfaces. Drawing...
2023-11-01 Steel World Comments Off on Introduction to stamping
Stamping is a processing method. The blanks are mainly plates, strips, pipes and other profiles. Stamping equipment is used to obtain the required shape and size of the parts through the action of the...
2023-11-01 Steel World Comments Off on Application of SIMATIC S7-300 PLC in automatic monitoring system of drainage pump station
1. Overview As the main facility of municipal construction and management projects, drainage pumping stations (hereinafter referred to as pumping stations) are responsible for the important task of ur...
2023-11-01 Steel World Comments Off on Air duct flangeless connection technology tends to be widely used at home and abroad
In China’s ventilation duct industry, according to traditional domestic construction techniques, angle steel flange connections are used to connect pipe sections between air ducts. Due to the co...
2023-11-01 Steel World Comments Off on The function, capacity and type of gas cabinet
An experimental study carried out at Udholm Tools GmbH in Hagforsch, Sweden, has identified the influence of ladle-adherent deposits on the formation of non-metallic inclusions during ladle processing...
2023-11-01 Steel World Comments Off on What is metal mold casting
Overview Metal mold casting, also known as die casting, is a casting method that pours liquid metal into a metal mold to obtain castings. Casts are made of metal and can be reused many times (hundreds...
2023-11-01 Steel World Comments Off on Development and use of new insulating flanges
Since the reform and opening up, with the continuous and stable development of my country’s socialist economic market, the application of pipeline gas industry in urban construction has graduall...
2023-11-01 Steel World Comments Off on Mechanism and process of inter-rack cooling in bar production
The processing deformation of the rolled piece on the finishing mill causes the heat value generated by the bar to exceed the heat loss caused by radiation, conduction and convection, so the temperatu...
2023-11-01 Steel World Comments Off on Effect of temperature of sulfuric acid solution on pickling
The temperature of the sulfuric acid solution has a much greater impact on the pickling speed than the concentration. As can be seen from Figure 1, when the temperature rises from 18°C to 60°C, the te...
2023-11-01 Steel World Comments Off on Flange – basic knowledge of valve design and production
Brief description of flange Pipe flanges, their gaskets, and fasteners are collectively called flange joints. Flange joint is a component that is widely used in chemical engineering design and covers ...
2023-11-01 Steel World Comments Off on Explanation and solutions to common centrifugal pump mechanical seal leakage situations
Abstract: The causes of leakage of general-purpose centrifugal pump mechanical seals are analyzed, and various leakage phenomena and possible parts that may cause leakage are explained. At the same ti...
2023-11-01 Steel World Comments Off on Requirements for Electroless Plating Bath Recipes
1. The redox potential of the reducing agent must be sufficient to reduce metal ions and precipitate the metal. 2. The plating bath needs to be stable and inactive when not in use. It will only start ...
2023-11-01 Steel World Comments Off on Reasons and solutions for damage to the quick joint of the connecting plate in the bar rolling mill
The seal of the bar rolling mill combined with the plate quick joint is easily damaged and causes leakage. The reasons are as follows: (1) The impact of the increased elevation error of the equipment ...
2023-11-01 Steel World Comments Off on How to extract vanadium from vanadium titanium magnetite
The methods for extracting vanadium from vanadium-titanium magnetite can be summarized into two types: the fire method is to extract vanadium indirectly through vanadium ferromagnetite concentrate or ...
2023-11-01 Steel World Comments Off on Failure modes and maintenance points of quick-change racks
The axial gasket and damping pad of the bevel gear shaft of the quick-change frame bevel gearbox are frequently damaged. The reason is that the axial load of the bevel gear shaft is too large, causing...
2023-11-01 Steel World Comments Off on Method for extracting vanadium from vanadium-titanium magnetite
The methods for extracting vanadium from vanadium-titanium magnetite can be summarized into two types: the fire method is to extract vanadium indirectly through vanadium ferromagnetite concentrate or ...
2023-11-01 Steel World Comments Off on Analysis of fire pump inspection methods in fire water supply system
Abstract: The method of using the fire pump speed for self-checking is analyzed. Self-checking methods can be divided into normal-speed self-checking methods and low-speed self-checking methods. The l...
2023-11-01 Steel World Comments Off on round
After the round steel is rolled out of the finished pass, it is processed in the width direction in a pass composed of two vertical rollers to obtain high-precision bars and wire rods. When rolling by...
2023-11-01 Steel World Comments Off on Heating calculation and analysis of natural gas engine heat pump unit
1 Introduction Natural gas engine-driven heat pump units (GasEngine-DrivenHeatPump, hereinafter referred to as gas engine heat pumps) have been widely used in countries such as Japan, the United State...
2023-11-01 Steel World Comments Off on Defects often caused by improper cooling process after forging
Defects caused by improper cooling after forging usually include the following: 1. Cooling cracks During the cooling process after forging, large thermal stress will be generated inside the forging du...
2023-11-01 Steel World Comments Off on What are the main difficulties in blast furnace smelting of vanadium titanium magnetite?
1. In terms of raw materials, the strength of vanadium-titanium sinter is generally lower than that of ordinary sinter. Its drum index is generally 81 to 82%, while the drum index of ordinary sinter c...
2023-11-01 Steel World Comments Off on What is iron ore beneficiation—gravity beneficiation
Gravity beneficiation is referred to as gravity separation. Gravity separation is also one of the important beneficiation methods for selecting iron ore, especially weakly magnetic iron ore. Generally...
2023-11-01 Steel World Comments Off on Rolling die slot
On the forging die used for die forging, it is used to reduce the partial cross-sectional area of the blank and increase the cross-sectional area of another part so that the volume distribution meets ...
2023-11-01 Steel World Comments Off on Effect of heat treatment on die casting mold life
The metallographic structure of the material can be changed through heat treatment to ensure the necessary strength and hardness, dimensional stability at high temperatures, thermal fatigue resistance...
2023-11-01 Steel World Comments Off on Investment in ore selection in Angang Dagushan and other mineral processing plants (1)
Ore beneficiation benefits ironmaking, but the ore concentrator has to pay a price. The investment in ore beneficiation is mainly reflected in increasing investment in infrastructure and technical tra...
