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Determination method for intergranular corrosion of aluminum alloy GB 7998-87
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Method for Determining Intergranular Corrosion of Aluminum Alloys
Intergranular corrosion (IGC) is a type of corrosion that primarily occurs along grain boundaries in aluminum alloys. This type of corrosion occurs when certain alloying elements as well as nonmetallic inclusions are exposed to a......
1063 
Lila
38Si7 use
Steel 38si7
Steel 38S7 is a low-alloy chromium-molybdenum steel widely used for a variety of industrial, construction and automotive applications. It is often described as an improved, heat-resistant alternative to carbon steel. Steel 38S7 offers a unique combination of strength, toughness, ducti......
CrWMn use
Cyberbullying is a term used to describe the use of technology, primarily social media, to bully individuals or groups of people. It has become a serious problem in todays world, particularly among young people, and can have severe long-term consequences.
Cyberbullying can take many forms. It can......
JGJ81-2002 Welding Technical Regulations for Building Steel Structures (Part 5)
，题目为 GB50205-2001建筑施工质量检验规程
GB50205-2001 Building Construction Quality Inspection Standard
Introduction
The GB50205-2001 Building Construction Quality Inspection Standard gives guidance for a thorough and professional approach to inspect the quality of construction for all new and e......
Grades of pure iron for electricians
Electrical engineers use pure iron with different grades and model numbers according to its mechanical and physical properties. The most common pure iron used by electrical engineers is called low-carbon steel (also known as mild steel). Its model number is AISI 1006, AISI 1008 or AISI 1010.
Low-......
Vermicular graphite cast iron (JB4403-1987)
Continuous Casting of Iron with Heating by Molding
Continuous casting of iron with heating by molding is the process of pouring molten iron into a heated die in a continuous process to produce a finished product. The continuous casting process involves continuously pouring the molten iron into a ......
Carbon steel grades for Japanese structures
Japan has historically been known for its construction steel industry, and for the most part, that trend continues today. This has made it the leading producer of structural grade carbon steel in the world, and its unique production process means that Japanese steel has a reputation for being one ......
Cold-rolled steel strip for pinned cables (GB/T41751-1984)
Cold rolled steel strip for armored cables (GB / T41751-1984)
Cold-rolled steel strip is a kind of rolled steel shaped strip, which is used in various fields such as cable armoring, material packaging and industrial automation. GB/T41751-1984 “Cold-rolled steel strip for armored cable” is used ......
Galvanized carbon steel wire for optical cable (YB/T125-1997)
Aluminized carbon steel wires
Aluminized carbon steel wires are developed as an alternative to traditional galvanized carbon steel wires. The aluminized coating is formed by chemical vapour deposition of aluminium on the surface of the steel wire. This produces a durable protective coating which ......
Steel wire for gas shielded welding GB/T 14958-94
Standard No.: GB/T 14958-94
1. Overview of GB/T 14958-94
GB/T 14958-94 specifies the requirements for gas shielded welding wire used for welding protective gases. It is made of low-alloy heat-resistant steel and calcium silicate ceramic core mainly used in welding with shielding protection gases......
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