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...
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...
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...
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...
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 ...
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...
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...
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:...
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 ...
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...
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...
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...
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...
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&...
Shanghai Futures Exchange Futures Aluminum Warehouse Receipts Daily (August 2021, 09)
Aluminum unit: ton area warehouse futures Increase or decrease Shanghai State Reserve Tianwei 1848 0 National Reserve Waigaoqiao 0 0 Central Reserve Wu Song 325 0 SIPG Logistics 3060 0 Shanghai...
Huang Yan, deputy general manager of Guangxi Tourism Development Group, visited Pingguo Aluminum
On August 8, Deputy General Manager of Guangxi Tourism Development Group Co., Ltd., Party Secretary and Executive Director of Guangxi Lufa Health Industry Group Co., Ltd. Huang Yan, Director and Vice ...
Yunhui Aluminum Price Quotes on August 2021, 09: Aluminum prices soared today
Yangtze River Nonferrous Lowest highest Average price Ups and downs 23390 23430 23410 +750 Nanhai Nonferrous Lowest highest Average price Ups and downs 23760 23860 23810 +730 Guangdong South Reserve L...
A Weekly Review of Aluminium Industry News: Ukraine initiates an anti-dumping investigation against China-related aluminum ladde...
1. Ukraine initiated an anti-dumping investigation against China-related aluminum ladders On September 1, 2021, the Ukrainian Interagency International Trade Commission issued an announcement that, in...
New Orleans metal warehouses are operating normally after Hurricane Ida
Foreign media news on September 8: More than a week after Hurricane Ida hit New Orleans, warehouses in the area that store aluminum, copper and other industrial metals are operating normally, despite ...
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...
Shanghai Futures Exchange Futures Aluminum Warehouse Receipts Daily (August 2021, 09)
aluminumUnit: Tons area warehouse futures Increase or decrease Shanghai State Reserve Tianwei 2222 0 National Reserve Waigaoqiao 0 0 Central Reserve Wu Song 325 0 SIPG Logistics 2283 0 Shanghai...
Summary of aluminum prices in the domestic spot market on August 2021, 8
Date Yangtze River Nonferrous Shanghai Futures Nanhai Nonferrous Guangdong South Reserve Shanghai Spot Chinalco Quotation LME electronic disk 08 26 20520 20410 20880 20640 20510 20540 08 25 205...
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...
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...
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...
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...
Process Of Powder Coating
Process Of Powder Coating Powder coating equipment (electrostatic spraying machine) is used to spray the powder coating on the surface of the workpiece. Under the action of static electricity, the pow...
Zouping’s “300th Five-Year Plan” end of recycled aluminum production capacity can reach XNUMX million tons
On August 8th, Shandong News broadcast a single report on the transformation and upgrading of Binzhou Aluminum Industry: Zouping City, through the green remodeling of the entire aluminum industry chai...
Yu Huafeng, chairman of Yixiang Aluminum, went to the grassroots unit to inspect and guide the work
On the afternoon of August 25, the company’s deputy secretary of the party committee and chairman of the board Yu Huafeng went to the guarantee unit to inspect and guide the work, accompanied by the p...
Southwest Aluminum has been approved for 12 new aluminum and aluminum alloy national standard sample research and replication pr...
Recently, the National Standards Committee issued the second batch of recommended national standards plan and the second batch of national standard sample research and copy plan project notices in 202...
Powerway Alloy: The currently trial-produced aluminum alloy welding materials are mainly used in automobile lightweight and new ...
Some investors asked Powerway Alloy (601137), hello, can the steel plate shell of a car be welded with aluminum welding wire?Or is the aluminum welding wire specially used for welding aluminum car bod...
Huafeng Aluminum: The company’s new energy battery products are mainly supplied to automobile new energy battery manufactu...
An investor asked Huafeng Aluminum (601702), your company’s products are used in new energy batteries and heat engine exchange systems. In addition to Tesla, do you have cooperation with other compani...
Chalco resumes normal alumina production
Chinalco Mining Co., Ltd., a major alumina producer in Henan, resumed normal production at the end of July. The output in August is expected to be around 7 tons, up from around 8 tons in July, accordi...
Imports of aluminum ore and concentrates fell by 7% year-on-year to 925 million tons in July
China Customs: In July, the import of aluminum ore and its concentrate was 9.25 million tons, a year-on-year drop of 15.7%; this year, the total import of aluminum ore and its concentrate was 64.41 mi...
The cold-rolled aluminum strip project with an annual output of 10 tons settled in Baoxing County
On September 15, the Ya’an Investment Promotion Conference of the 18th Western China International Expo was held in Chengdu. At the project signing ceremony, Baoxing County Party Committee Deput...
Sunsea Intelligence: Wuhan Sunsea’s main business is related products such as communication equipment and aluminum molds for c...
Some investors asked Sunsea Intelligent (002313), what is the main business of Wuhan Sunsea New Material Technology Co., Ltd., what new materials have been developed, and what achievements have been m...