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JGJ81-2002 Welding Technical Regulations for Architectural Steel Structures (Part 14)
Welding processes
Welding processes used in construction steel structures can be divided into three categories: manual welding, mechanical welding and self-shielding welding.
Manual welding is one of the most commonly used welding processes. It can be used for both mild steel and stainless steel......
1076 
Sophie
GB 12827-91 standard reference acetylene carbon black and identification method
Carbon black refers to black powdery or granular material, which is composed of many tiny particles with the average particle size of between 10 and 2000 nanometers. It is composedot many carbon atoms buthydrophobic in nature. Carbon black can be prepared by pyrolysis of hydrocarbons such as coal ......
Reference Standards for Metallurgical Products
Introduction
Metallurgy is a branch of engineering that studies the properties and processing of metals. There are a variety of products associated with metallurgy. This includes things such as structural steel, steel plates, aluminum products, cast iron, steel tubes, and more. The quality of pro......
75Cr1 use
INTRODUCTION
Cr1 is a highly alloyed stainless steel containing nickel, chromium, and molybdenum in order to achieve excellent strength, ductility, and weldability. It is widely used in the aerospace, automotive, chemical, food processing, medical, marine, and petrochemical industries for compone......
European standard for the designation of steel grades
European Steel Numbering System
The European Steel Numbering System (ESNS) is a numerical method of categorizing different types of steel, developed by Europe and adopted in many countries worldwide. This system is based on the European material numbering standard, EN 10027-2, and provides a unif......
Representation method of bearing steel grade
Bearing Steel Grades
Bearing steel refers to a type of alloy steel used in rolling contact bearings, such as those found in ball and roller bearings. Bearing steels are designed to have high reliability and durability, even in extreme operating conditions. They generally contain a high proportion......
30 uses
The Benefits of Continuous Learning
Continuous learning involves the process of acquiring knowledge throughout life and gaining the skills necessary to remain a productive member of society. It refers to the pursuit of lifelong learning through activities such as advanced education, experiential ......
Common vocabulary in mechanical drawing
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Mechanical Drawings Terms
Print Reading: a print reading is a document used to communicate the specifics of a machine process or device. Print reading involves the ability to interpret diagrams, geometric shapes and line patterns including circles, arcs, diamonds, triangles, microgrips, etc.
M......
Basic English Terminology of Printing Machines (Part 1)
Printing Terms
1. Affix: To attach to something else by adhesive, by sewing, by staples, or other means.
2. Alignment: The process of positioning images and elements in orientation to each other.
3. Arrangement: The arrangement of various elements on the page.
4. Artwork: Any preparatory mater......
Basic English Terminology of Printing Machines (Part 2)
The printing industry has been around for centuries, and even though technology has changed the way in which printed materials are produced, the basic terminology remains largely the same. Here is a list of some of the most common printing terms you’ll encounter.
Alignment — The positioning of ......
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