2021-10-14 Steel World Comments Off on Overview of the process of removing iron and whitening in kaolin (2)
Guide Iron is the primary dyeing element of kaolin. Iron-bearing mineral deposits will turn into Fe2O3 when calcined at high temperature, which makes the kaolin mineral yellow or brick red. In order t...
2021-10-14 Steel World Comments Off on A good way to prolong the service cycle of centrifugal pump
Centrifugal pumps are widely used in petrochemical, coal chemical and other chemical industries to transport liquids of different properties and provide the pressure and flow required for chemical rea...
2021-10-14 Steel World Comments Off on Comprehensive planning standard for urban engineering pipelines
Regarding the requirements for issuing the national standard “Code for Comprehensive Planning of Urban Engineering Pipelines” and notifying Genju State Planning Commission of the “Pr...
2021-10-14 Steel World Comments Off on Introduction to basic knowledge of water pump
Significance of pump model: such as 40LG12-15 40- inlet and outlet diameter (mm) LG- high-rise building feed water pump (high speed) 12-Flow (m3/h) 15-Single-stage head (M) 200QJ20-108/8 200—ind...
2021-10-14 Steel World Comments Off on Application of Bellows Heat Exchanger in National Economy
Application of Bellows Heat Exchangers in the National Economy [Abstract] So far, bellows heat exchangers have been widely used in fields such as thermal power, petroleum, chemical, natural gas, light...
2021-10-14 Steel World Comments Off on Analysis of the internationally popular valve procurement work forms
Twenty years of reform and opening up, my country’s economy has developed rapidly, and international exchanges and cooperation in the field of engineering construction are also increasing. The constru...
2021-10-14 Steel World Comments Off on Industrial PVC-C pipe installation guide
Correct installation is very important to the PVC-C piping system. In order to ensure that the system can operate safely for a long time, some installation instructions and precautions for piping inst...
2021-10-14 Steel World Comments Off on Installation instructions for high-temperature and high-pressure steam pipelines
1 Project Overview 1.1 System Introduction The high temperature and high pressure steam pipeline mainly includes the main steam pipeline system and the high and low temperature reheat steam pipeline s...
2021-10-14 Steel World Comments Off on Sealing gasket installation and raw material selection
The choice of gasket material mainly depends on the following three factors: temperature, pressure, and medium. 1. Metal gasket material 1. Carbon steel: The recommended maximum working temperature do...
2021-10-14 Steel World Comments Off on Talking about the difference between castings and stainless steel forgings
The use of castings has a long history. In ancient times, people used castings to make coin sacrificial vessels, weapons, things and some day utensils. However, in modern times, castings are primarily...
2021-10-14 Steel World Comments Off on What technical standards need to be considered when buying a valve
For this reason, this draft is drafted for discussion and whether it can be communicated within the industry after the revision, which arouses the attention of various companies in this regard and imp...
2021-10-14 Steel World Comments Off on Luopu developed the two characteristics of the regulating valve and the difference between the gas film regulating valve
It is reported that Ropp’s new generation of regulating valve RPV6 has come out, which makes this fully functional regulating valve stand out in the world of control valves. It not only has the ...
2021-10-14 Steel World Comments Off on Explanation of various valves
There are many types of valves and a wide range of applications. Sometimes it is the main equipment in the pipeline and plays a controlling role; sometimes it is a secondary equipment and plays an aux...
2021-10-14 Steel World Comments Off on What are the important types of iron ore
There are many kinds of iron minerals. At present, there are more than 300 kinds of iron minerals and iron-containing minerals, of which more than 170 are common. However, under current technical cond...
2021-10-14 Steel World Comments Off on The difference between futures trading and spot trading
The difference between futures trading and spot trading Spot transaction refers to a transaction method in which the buyer and seller perform the obligation of delivery and payment immediately after t...
2021-10-14 Steel World Comments Off on Installation and Acceptance Standards for Industrial Piping Engineering (3)
7 Pipeline inspection, inspection and testing 7.1 General requirements 7.1.1 The construction unit shall inspect the construction quality through its quality inspectors. 7.1.2 The construction unit or...
2021-10-14 Steel World Comments Off on Technical code for building drainage hard polyvinyl chloride pipeline engineering
3.1.20 The location of the expansion joint should be close to the water confluence pipe fittings (Figure 3.1.20), and should meet the following requirements: 1 When the riser passes through the floor ...
2021-10-14 Steel World Comments Off on The difference between welded pipe bracket pipe
Straight seam welded pipe is a general term. It is produced by steel strips. The pipes that are welded by high frequency welding equipment are called straight seam welded pipes. (The name is given bec...
2021-10-14 Steel World Comments Off on Research and Application of New Techniques for Checking Safety Valves of Power Station Boilers
The provisions of the relevant standards for the calibration of power station safety valves are based on the “Steam Boiler Safety Technical Supervision Regulations issued by the Boiler and Press...
2021-10-14 Steel World Comments Off on Introduction to basic common sense about sheet metal
1. Classification of steel plates (including strip steel): 1. Classification by thickness: (1) Thin plate (2) Medium plate (3) Thick plate (4) Extra-thick plate 2. Classification by production method:...
2021-10-14 Steel World Comments Off on The difference between SUS304L and SUS304
The characteristics of SUS304L and SUS304 and the steel pipe material|chemical composition|performance carbon content are different. SUS304L has all the characteristics of SUS304; excellent corrosion ...
2021-10-14 Steel World Comments Off on HDPE polyethylene pipe construction technology
1. Preparation for construction 1. The design drawings and other technical documents are complete and approved by the meeting. 2. The construction personnel are trained and familiar with the general p...
2021-10-14 Steel World Comments Off on The structure and selection of steel pipe fittings
l Foreword Pipe fittings are often used when changing the direction, elevation, or diameter of the pipe system, as well as the branch pipe from the main pipe. Pipe fittings refer to the parts used for...
2021-10-14 Steel World Comments Off on What is the difference between 60Si2Mn and 51CrV4 materials
Both 60Si2Mn and 51CrV4 are spring steels with similar mechanical properties. Mechanical properties of 60Si2Mn: σs≥1176Mpa, σb≥1274Mpa, δs≥5%, ψ≥25% 51CrV4 Mechanical properties: σs≥1175Mpa, σb≥1500Mp...
2021-10-14 Steel World Comments Off on Moving coil type full electric feedback servo valve automatic detection system
Abstract of the paper: Taking the MK moving coil type fully electric feedback servo valve produced by Japan KYB Industry Co., Ltd. as an example, the characteristics of the moving coil type fully elec...
2021-10-14 Steel World Comments Off on What is the international standard of seamless copper water pipe and copper gas pipe
Preface This standard is based on the European Community Standard EN IO57: 1996 (Copper and copper alloys-Seamless round copper water pipes and copper gas pipes for sanitary and heating installations&...
2021-10-14 Steel World Comments Off on The difference between cast steel, cast iron and carbon steel valve materials
To put it simply, you first distinguish between iron and steel. Both steel and iron are alloys based on iron and carbon as the main additive element, collectively referred to as iron-carbon alloys. Sm...
2021-10-14 Steel World Comments Off on Analysis of Causes of Urban Gas and Pipeline Accidents
At present, with the implementation of the West-East Gas Pipeline in my country, urban gas pipelines have become more popular. Natural gas, liquefied gas, coal gas, and other gas pipeline networks hav...
2021-10-14 Steel World Comments Off on Analysis of geothermal heat pump operating costs and management and application methods
Abstract: In addition to environmental protection features, geothermal heat pumps also have obvious energy-saving advantages. This article mainly introduces the geothermal heat pump operating cost ana...
2021-10-14 Steel World Comments Off on Causes of materials that endanger the life of bearings and their adjustments
Material factors affecting bearing life The early failure modes of rolling bearings mainly include cracks, plastic deformation, wear, corrosion, and fatigue. Under normal conditions, they are mainly c...
2021-10-14 Steel World Comments Off on How to divide copper
1. Copper production (1) International market The main source of copper From the perspective of regional distribution, there are five regions with the richest copper reserves in the world: 1) the west...
2021-10-14 Steel World Comments Off on Magneto-elastic method–a new way to inspect the surface burn of parts
Grinding burns and common inspections, Many important maintenance such as products, fruits, crankshafts, consumption methods, printing methods, sales and universal use, etc., need to be grinded after ...
2021-10-09 Steel World Comments Off on Factors and Measures Affecting the Operation of Control Valves
1 Introduction In the chemical control system with a high degree of automation, the regulating valve is used as the terminal execution device of the automatic regulating system, and accepts the contro...
2021-10-09 Steel World Comments Off on How to choose the quality of valves in the water supply pipe network
The water supply pipe network distributes the tap water sent from the water plant to thousands of households. Therefore, the water supply pipe network is distributed in every corner of the city, and i...
2021-10-09 Steel World Comments Off on Research on the beneficiation test of maghemite
The rapid development of my country’s economy has led to a huge demand for steel products. Iron ore is used as a material for iron smelting, and the development of its sorting skills is directly...
2021-10-09 Steel World Comments Off on Introduction to London Metal Exchange (LME)
London Metal Exchange is the largest non-ferrous metal exchange in the world. The price and inventory of London Metal Exchange have an important impact on the production and sales of non-ferrous metal...
