2023-10-12 Steel World Comments Off on Application and assumptions of engineering machinery sealing technology
At present, China’s construction machinery industry has introduced a large number of host design and manufacturing technologies from developed countries, and gradually adopted internationally ad...
2023-10-12 Steel World Comments Off on pressure leaching
Pressure leaching is a leaching method that operates at higher than atmospheric pressure. The purpose of using pressure leaching is to increase the temperature so that the leaching reaction proceeds a...
2023-10-12 Steel World Comments Off on What is steel futures trading? What are the application scopes of steel futures trading?
Taking into account the selection methods of the underlying objects of steel futures at home and abroad, and taking into account the actual situation of the Chinese steel market, the selection of the ...
2023-10-12 Steel World Comments Off on PP-R pipe construction and installation guidelines
1. General provisions 1. Before the pipeline is installed and constructed, the following conditions should be met: a The construction drawings and other technical documents are complete, and the drawi...
2023-10-12 Steel World Comments Off on What is aluminum alloy size chart
Aluminum alloy profiles basically have no national standards or non-standards, but the country has special industry specifications for construction aluminum profiles, which mainly set requirements for...
2023-10-12 Steel World Comments Off on The functions and requirements of lost foam casting coatings
(1) The functions of lost foam casting coatings: 1) Improve the strength and stiffness of foam high ultra fine plastic molds, prevent deformation and damage, and ensure dimensional accuracy. 2) Ensure...
2023-10-12 Steel World Comments Off on Tips and precautions for designing hydraulic system of injection molding machine
Hydraulic technology has been introduced into the industrial field for more than a hundred years. With the rapid development of industry, hydraulic technology is changing with each passing day. With t...
2023-10-12 Steel World Comments Off on GB3093 high pressure oil pipe for diesel engine
Nuclear tube technical quality 2004 agreement Φ219.16.35, Φ15910 fills the gap in domestic nuclear grade tube production and becomes the only manufacturer in the country that can produce nuclear tubes...
2023-10-12 Steel World Comments Off on Cryogenic treatment
The subsequent quenching process of placing the workpiece in a refrigeration container and cooling it to below zero (usually -70 to -196°C) is also called cold treatment. The martensitic transformatio...
2023-10-12 Steel World Comments Off on Application of DANFOSS soft starter in low-pressure and high-power reservoir pumping station
Abstract: This article introduces the application of soft starters in low-voltage and high-power reservoir pumping stations. It provides the electrical schematic diagram of the system, the main parame...
2023-10-12 Steel World Comments Off on What is 304 steel? What are the characteristics of 304 steel?
304 steel is a very common stainless steel, also called 18/8 stainless steel in the industry. Its corrosion resistance is better than 430 5 axis machining stainless steel, but the price is cheaper tha...
2023-10-12 Steel World Comments Off on Solid loss and prevention of mining centrifugal pumps
At present, among the drainage pumps used in coal mining working faces, there is no product specifically designed to discharge sediment. Regardless of the amount of sediment, the traditional segmented...
2023-10-12 Steel World Comments Off on Corrosion from metal cutting fluids
Cause of corrosion: The proportion of concentrated liquid in the cutting fluid is low. The pH value of the cutting fluid is too high or too low. For example, when PH>9.2, it will corrode cnc turnin...
2023-10-12 Steel World Comments Off on Investigation report on ilmenite beneficiation test in a certain place in Shandong
Report name: Ilmenite beneficiation test research report in a certain place in Shandong Report format: word Completion time: April 2007 Publisher: Guo Changqing Supervising expert: Huang Kaiguo Gong M...
2023-10-12 Steel World Comments Off on What is Cr12MoV steel? What are the application ranges of Cr12MoV steel?
Cr12MoV steel has high hardenability, and those with a cross-sectional area below 300-400mm can be completely quenched. It can still maintain good hardness and wear resistance at 300-400 ℃, and has hi...
2023-10-11 Steel World Comments Off on Types of Hole Patterns
The hole types are divided into the following types according to their purpose: (1) Open pass, also known as extension, rough rolling, or compression pass. The task of this pass type is sufficient to ...
2023-10-11 Steel World Comments Off on Stainless steel seamless pipe usage
The new type of martensitic stainless steel seamless pipe KL-HP12CR for pipelines has excellent weldability, mechanical properties, and corrosion resistance. The weldability was improved by reducing t...
2023-10-11 Steel World Comments Off on Conception of a Tantalum-Niobite Granite Primary Ore Dressing Plant
Yichun Tantalum Niobium Ore Dressing Plant The Yichun Tantalum and Niobium Mine is located in Yichun City, Jiangxi Province. It is a large-scale mineral deposit containing tantalum, niobium, lithium, ...
2023-10-11 Steel World Comments Off on 钢材价格指数是什么？
Among these 8 price indices, the main ones used for carbon steel are international (global), plate, long rod, North American, European, and Asian indices, as well as indices for stainless steel and pi...
2023-10-11 Steel World Comments Off on Key Points and Difficult Issues in the Selection of Chemical Process Pumps
The petrochemical industry occupies a very important position in the national economy, and chemical process pumps, as key supporting equipment, are also receiving increasing attention from people. Due...
2023-10-11 Steel World Comments Off on Processing Techniques for a Certain Limonite Ore Dressing
The vast majority of limonite in nature exists in the form of 2Fe2O3 · 3H2O, in the form of amorphous, cryptocrystalline, or colloidal form. Its exterior color is yellow brown, dark brown to brownish ...
2023-10-11 Steel World Comments Off on Forging die groove
A cavity made on the forging die module that can deform the billet during forging, also known as the die chamber. The forging die groove can be divided into die forging die groove, billet making die g...
2023-10-11 Steel World Comments Off on What is 440c steel? What are the characteristics of 440c steel?
High hardness and good wear resistance. When grinding, its disadvantage is that it has a high viscosity and quickly heats up. However, it is easier to grind than any carbon steel and it is much easier...
2023-10-11 Steel World Comments Off on Factors affecting the unit consumption of magnesium
The unit consumption of magnesium desulfurization mainly depends on the initial sulfur content, endpoint sulfur content, temperature, and weight of molten iron (the depth of molten iron inside the lad...
2023-10-10 Steel World Comments Off on What are the models of medium and thick plates?
Hot roll specifications are: 2.75*1500*C, 3.0*1500*C, 3.25*1500*C, 3.5*1500*C, 3.75*1500*C, 4.25*1500*C, 4.5*1500*C, 4.75*1500 *C、5.25*1500*C、5.5*1500*C、5.75*1500*C、6.5*1500*C、7.25*1500C、7.5*1500*C、7....
2023-10-10 Steel World Comments Off on What is 40Cr steel? What are the characteristics of 40Cr steel?
40Cr steel is a medium-carbon modulated steel. Normalizing can promote spheroidization of the structure and improve the cutting performance of blanks with a hardness less than 160HBS. Tempered at a te...
2023-10-10 Steel World Comments Off on What is the “JL” method for smelting micro-carbon ferrochromium?
The Bolan method has a history of 50 or 60 years in foreign countries in smelting micro-carbon ferrochromium. Its advantages are unmatched by the electrosilicothermal method. It has the characteristic...
2023-10-10 Steel World Comments Off on Magnesium alloy heat treatment
A process of heating and cooling to change the metallurgical structure or mechanical properties of magnesium alloys or eliminate residual stress. Correspondingly, the commonly used heat treatment stat...
2023-10-10 Steel World Comments Off on Five-axis linkage machining technology of Francis turbine blades
Introduction The CNC machining technology of large hydraulic turbine runner blades is one of the important signs that hydraulic turbine manufacturing has reached the advanced level in the world today....
2023-10-10 Steel World Comments Off on What is CrWMn steel? What are the characteristics of CrWMn steel?
Cold work die steel, performance and uses are close to SK3. China GB/YB standard grade CrWMn, China Taiwan CNS standard grade SKs31, Japanese JIS standard grade SKS31, Korean KS standard grade sTS31, ...
2023-10-10 Steel World Comments Off on What is high frequency welding h-shaped steel
High-frequency current is used to locally heat the metal surface and weld it under the action of external force. It does not use any welding wire or flux, and can be produced continuously in large qua...
2023-10-10 Steel World Comments Off on What is M238 steel? What are the detailed parameters of M238 steel?
C Carbon Cr Chromium W Tungsten Mn Manganese Si Silicon V Vanadium 0.95 0.5 0.5 1.1 0.3 0.1 M238 factory specifications: hardened and tempered to 980-1080N/mm²(30-34HRC). Characteristics of M...
2023-10-10 Steel World Comments Off on Heating furnace and quenching cracks
Quenching cracks are closely related to the type of heating furnace. The vacuum furnace is least likely to cause quenching cracks. The following are arranged in order of the difficulty and difficulty ...
2023-10-10 Steel World Comments Off on Some insights into the use of U-PVC water supply pipes
I. Introduction With the development of urban construction, the improvement of people’s living standards has put forward higher requirements for drinking water quality. At the same time, in orde...
2023-10-10 Steel World Comments Off on Research and development of a common process for beneficiation and smelting of a certain high-phosphorus limonite ore in Yunnan
With the rapid development of my country’s steel industry, domestic iron ore resources are becoming increasingly scarce, and the available iron ore resources are becoming increasingly poor, fine...
2023-10-10 Steel World Comments Off on What is ASP60 steel? What are the applications and characteristics of ASP60 steel?
%: C: 2.03 Si: 4.0 Mn: 7.0 Cr: 6.5 Mo: 10.5 V: 6.5 Good grinding performance Good heat treatment dimensional stability Good toughness Very good red hardness Very good wear resistance ASP60 steel is es...
