I. Spot Welding and Welding Method The working principle of spot welding is based on the thermal effect of current. In spot welding, two workpieces to be welded are first clamped by the upper and …
Spot Welding: In-Depth Guide & Techniques Revealed Read More »
Introduction Welding technology is an important metal processing technology, and its degree of automation is increasing with the development of the era. MIG welding is a product of welding automation. MIG welding, short for Metal …
Unlocking MIG Welding: Pros, Cons, & Cutting-Edge Trends Read More »
1. Characteristics of Manual Tungsten Inert Gas (TIG) Welding Process (1) Working Principle Tungsten Inert Gas (TIG) welding is a method of gas shielded welding that uses a tungsten rod as an electrode and argon …
1. What is Carbon Steel? Based on its chemical composition, steel can be categorized into two main types: carbon steel and alloy steel. Carbon steel is further divided into: 1. Low Carbon Steel Low carbon …
Welding Characteristics and Procedures of Galvanized Steel Pipes Galvanized steel is widely used across various industries due to the protective layer of zinc oxide it forms in the air, preserving the internal steel structure. Despite …
Galvanized Steel Pipe Welding: Techniques & Insights Read More »
Over the past decade, due to significant impetus from energy conservation and environmental protection, the development of magnesium alloys and their welding technologies has accelerated more than ever before. Breakthroughs constantly emerge from welding methods, …
Magnesium and Magnesium Alloy Welding Techniques Explained Read More »
Silver-based brazing is a type of brazing process. During brazing, the workpieces are joined together by the solidification of the melted filler metal, creating a connection between the two pieces. Currently, our company utilizes the …
Uncover the Secrets of Silver-Based Brazing Processes Read More »
I. Welding Current 1. Welding Current The appropriate welding current is selected based on welding conditions such as plate thickness, welding position, welding speed, and material parameters. In reality, adjusting the current on a CO2 …
In the welding process, using mixed gas instead of a single gas as the shielding gas can effectively refine the droplet, reduce the splash, improve the forming, control the penetration, prevent defects, and reduce the …
The Art of Selecting the Right Mixed Gas for Welding Read More »
Titanium alloys have low density, high strength-to-weight ratio, good corrosion resistance, low thermal conductivity, non-toxicity, non-magnetism, and can be welded. They are widely used in aerospace, aviation, chemical, petroleum, power, medical, construction, and sports industries. …
After the pressure vessel is welded, residual stress is produced in the structural weld zone. This is because the uneven heating temperature field during welding causes internal stress to reach the material yield limit, leading …
Eliminate Welding Residual Stress: 6 Effective Methods Read More »
1. Brazing Characteristics Brazing of graphite and diamond polycrystalline materials faces similar challenges as ceramic brazing. Compared to metals, brazing filler metals have difficulty wetting graphite and diamond polycrystalline materials, and their thermal expansion coefficients …
Brazing of Graphite and Diamond Polycrystalline Materials: Explained Read More »
1. Brazing Characteristics High-temperature alloys can be divided into three main categories: nickel-based, iron-based, and cobalt-based. They exhibit good mechanical properties, oxidation resistance, and corrosion resistance at high temperatures. Nickel-based alloys are the most commonly …
Precious metals mainly refer to materials such as Au, Ag, Pd, Pt, which have excellent conductivity, thermal conductivity, corrosion resistance, and high melting temperature. They are widely used in the manufacturing of circuit components for …
1. Brazing Characteristics Brazing ceramics to ceramics or ceramics to metal components can be quite challenging. Most brazing filler metals form spherical shapes on the ceramic surface, which leads to poor or no wetting. Brazing …
1. Brazing Materials Brazing materials with a melting point below 3000°C can be used for tungsten (W) brazing. Copper-based or silver-based solders are suitable for components operating below 400°C. For components operating between 400°C and …
1. Brazing Materials (1) Soft brazing materials are rarely used for brazing titanium and its alloys. The main types of hard brazing materials used are silver-based, aluminum-based, titanium-based, or titanium-zirconium-based solders. Silver-based solders are mainly …
1. Brazability The brazability of aluminum and aluminum alloys is poor, mainly because the oxide film on the surface is difficult to remove. Aluminum has a strong affinity for oxygen and easily forms a dense, …
Brazing of Aluminum and Aluminum Alloys: Explained Read More »
1. Brazing Performance The primary issue in brazing stainless steel is the presence of oxide films on the surface, which significantly affects the wettability and spreading of the filler metal. Various stainless steels contain a …
1. Brazing Materials (1) Filler Metals Copper-zinc filler metals and silver-copper filler metals are mainly used for brazing cast iron. Common copper-zinc filler metal grades include B-Cu62ZnNiMuSiR, B-Cu60ZuSnR, and B-Cu58ZnFeR, etc. The tensile strength of …
1. Brazing Materials (1) Brazing Materials Pure copper, copper-zinc, and silver-copper brazing materials are commonly used for brazing tool steel and hard alloy. Pure copper has good wetting properties for various hard alloys, but the …
1. Brazing Materials (1) Filler Metals Brazing of carbon steel and low alloy steel includes soft brazing and hard brazing. The most commonly used filler metal in soft brazing is tin-lead solder, which improves the …
Brazing of Carbon Steel and Low Alloy Steel: Explained Read More »
Flux: a chemical substance that can help and promote the welding process in the welding process, has a protective effect and prevents oxidation reaction. Flux can be divided into solid, liquid and gas. It mainly …
With the rapid growth of the petrochemical industry, the use of stainless steel materials has increased and higher demands have been placed on the welding of pipes and plates. The traditional method of stainless steel …
Essential Techniques for Back Protection in Stainless Steel Welding Read More »
I. Electrical Accidents Case 1: Unauthorized powering of the welding machine by a welder leads to an electric shock Incident Description A welder in a factory was working outdoors on a temporary construction site. Due …
In today’s society, electric welding technology is widely used, not only in construction projects but also in industrial production. It has facilitated the optimization and upgrading of various types of welding machines. As a result, …
Welding is mainly used for surfacing of valve sealing surface, repair welding of casting defects and welding required by product structure. The selection of welding materials is related to its process method. The materials used …
Welding Materials Selection for Valves: Essential Tips and Guidelines Read More »
Abstract According to the National Quality Inspection Special Welder Test Rules and the requirements of the international standard for welding at a 45-degree angle, the fixed welding position of the tube plate corner joint test …
Precision Welding at 45-Degree Angle: Expert Insights Read More »
When a welding flame splashes, it often leaves welding spatter on the workpiece that must be removed, which takes time and money. It is better to prevent spatter, or at least minimize it, rather than …
Aluminum welding is conducted using Tungsten Inert Gas (TIG) welding, with alternating current (AC) as the power source. This is because aluminum is covered with a layer of aluminum oxide, making welding difficult. The melting …
Are you interested in welding pipelines? Have you ever wondered what 6GR welding is and how it’s done? Look no further! In this article, we dive deep into the world of 6GR welding, including the …
1. Advantages and Disadvantages of Tungsten Inert Gas Welding. 1. Advantages of Tungsten Inert Gas Welding (1) The argon gas effectively isolates the air and is itself insoluble in metal, does not react with metal, …
Advantages and Disadvantages of 7 Welding Methods: Expert Guide Read More »
Preface The difference between gas shielded welding machine and other welding machines is that it is a trinity of machine, electricity and gas. In the process of use, the problems arising from it should be …
Troubleshooting CO2 Gas Shielded Welding: Tips and Solutions Read More »
Argon arc welding has a higher degree of harm compared to electrode arc welding, but it is not cause for alarm. The level of infrared radiation produced during argon arc welding is about 1 to …
Argon Arc Welding: Is it Harmful to Your Health? Read More »
1. Advantages and disadvantages of welding connection? Advantages of welding connection: Simple structure, no weakening of component section, simple processing, various welding methods, automatic operation, saving steel, high efficiency, large stiffness, good integrity, and good …
10 Essential Welding Tips for Steel Structures: Boost Your Welding Skills Read More »
Titanium is a highly reactive metal with unique chemical properties. It exhibits a strong affinity for oxygen, hydrogen, nitrogen, and other gases, especially at high temperatures. This property is particularly pronounced during the welding process …
Titanium Welding: Decoding Seam Color and Quality Read More »
1. Welding method code and basic symbols for welding seams 1.1 Welding method codes and their annotations commonly used in sheet metal fabrication Arabic numeral codes are used to represent various metal welding methods. These …
Common Welding Processes for Thin Plate: Expert Guide Read More »
When designing a weld, several factors must be taken into consideration such as the weldability of the base metal, the matching of welding materials and the base metal, welding efficiency, the welding method, the size …
Qualifying Fillet Welds: What Kind Is Acceptable? Read More »
Compared to ordinary carbon steel, the welding process for stainless steel and the technical requirements for welders should be stricter, and the appearance of the weld should be of the utmost importance.” Here’s the revised …
Choosing the Right Color for Stainless Steel Weld: Tips and Tricks Read More »
1. Overview The alloy content of SA335-P91 steel is wCr=9%, wMo=1%, wV=0.2%, wNb=0.08%, wN=0.05%. It belongs to martensitic heat resistant steel, and its metallographic microstructure is low-carbon tempered martensite. Due to the adoption of micro …
Weld Seam Hardness Control: Tips and Best Practices Read More »
Preface Diamond is known for its high hardness, strong wear resistance, high thermal conductivity, and low thermal expansion coefficient, making it the optimal material for cutting and grinding tools. Diamond tools are widely used for …
Brazing and Diffusion Welding in Diamond Tool Manufacturing Read More »
In industrial production, certain continuously operating equipment, such as pipelines, valves, and containers, develop leaks due to various reasons. These leaks compromise the stability of normal production and the quality of the products, pollute the …
Welding is a process that involves heating or pressurizing (or both) the material of the workpiece to be welded, whether it is the same or different. The use of filler materials is also determined to …
Why Carbon Steel Electrodes Can’t Weld Stainless Steel Read More »
Welding positioners, as essential automation equipment in the welding industry, are extensively used. This article will discuss the primary applications and unique benefits of welding positioners, underscoring their significant role in enhancing welding quality, boosting …
Welding Positioners: The Future of Smart Welding Read More »
1. Welding materials: 1. The argon gas used for welding must have a purity of ≥ 99.99% and a dew point of ≤ -55℃, and should comply with the provisions of either GB/T4842 or GB10624. …
Welding Aluminum and Aluminum Alloy: Tips and Techniques for Success Read More »
1. Characteristics of Plasma Arc and Its Generator 1. Formation of Plasma Arc A plasma arc is a compressed tungsten electrode argon arc with high energy density, temperature, and arc force. The plasma arc is …
1. Welding of Carbon Steel Carbon steel, which is primarily composed of iron (Fe) with a small amount of carbon (C) as an alloying element, can be referred to as “carbon steel.” Carbon steel can …
1. Welding of Low Carbon Low Alloy Quenched and Tempered Steels 1. Welding Characteristics of Low Carbon Low Alloy Quenched and Tempered Steels Low carbon low alloy quenched and tempered steels generally have high yield …
Welding of Quenched and Tempered Steels: Explained Read More »
1. Stainless Steel Welding Stainless steel refers to a type of steel that remains in a passivated state on the surface by adding alloying elements such as chromium, enabling it to resist corrosion from the …
Welding of Stainless Steel and Heat-Resistant Steel: Explained Read More »
Cast iron is an iron-carbon alloy with a carbon content (C) greater than 2.14%. Cast iron is actually a multi-element iron alloy mainly composed of Fe, C, and Si. Cast iron can be divided into …
Copper and copper alloys are widely used due to their unique and superior comprehensive properties. Copper and copper alloys have excellent electrical and thermal conductivity, high oxidation resistance, and resistance to corrosion in freshwater, saltwater, …
