I. Chemical Composition and Mechanical Properties of Q345 Steel 1. The chemical composition of Q345 is shown in the following table (%) Element Content C ≤0.2 Mn 1.0-1.6 Si ≤0.55 P ≤ 0.035 S ≤0.035 …
Expert Guide to Welding Q345 (Low-Alloy High-Strength Steel) Read More »
I. Hastelloy Alloys Grade Currently, Hastelloy alloys are primarily divided into B, C, and G series, which are mainly used in highly corrosive environments where iron-based Cr-Ni or Cr-Ni-Mo stainless steel and non-metallic materials cannot …
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Aluminum alloy has a very low density and is lightweight; however, it has a high strength, comparable to, or even exceeding that of high-quality steel. It is malleable, easy to process into various profiles, and …
Welding is a significant technological process in the assembly of electronic products and is a pivotal stage in their manufacture. It is extensively used in the experimentation, adjustment, and production of electronic products and constitutes …
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1. The relationship between the commonly used steel manual arc welding current and the diameter of the welding rod, and the applicable range of plate thickness. Types of Steel Types of Welding Rods Welding Rod …
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Are you struggling with selecting the right welding wire for your projects? Do you feel overwhelmed by the different types of welding wires available in the market? Look no further! Our comprehensive guide for the …
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Copper brazing is a widely used technique for joining copper and copper alloys due to their exceptional electrical conductivity, thermal conductivity, corrosion resistance, and formability. This technique involves using a brazing filler metal to join …
Welding residual stress is caused by uneven distribution of temperature in the welded parts, thermal expansion and contraction of the weld metal, etc., so accompanying welding construction will inevitably generate residual stress. The most common …
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1. Types and Size of Welding Current Generally, the welding current type is selected based on the material of the workpiece. The size of the welding current is the most important parameter that determines the …
Are you curious about whether soldering with a soldering iron and solder wire is poisonous? Do you wonder if you may be experiencing lead poisoning from working in a PCB factory? In this article, we …
Is Your Soldering Iron and Tin Poisonous: Don’t Risk Your Health Read More »
Modern welding technology first appeared at the end of the 19th century, starting with arc welding and oxygen gas welding, followed by resistance welding. The demand for cheap and reliable connection methods of military equipment …
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The statement that the weld produced by gas shielded welding is not as solid as that of arc welding is not universally true. There are two types of welding wires used in gas shielded welding: …
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Are you interested in learning about the technical aspects of stainless steel welding? If so, you’re in luck! Our comprehensive guide covers everything you need to know about the welding process, including the different types …
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1. Five tips for aluminum welding 1. The wire drawing welding gun is best suited for welding aluminum. If it is not possible to use this type of welding gun, try to use the shortest welding …
Are you interested in learning about the different methods of welding brass and red copper? Look no further! In this blog post, we will dive into the various techniques used to weld these two metals, …
Looking to improve your welding skills and knowledge? Look no further! Our comprehensive blog post covers everything from the hazards of welding pores to safe operation technology for manual arc welding. Whether you’re a beginner …
As one of the important assembly processes, welding plays a decisive role in product quality. With the increase of welding work, the impact of welding occupational hazards on welders has attracted more and more attention. …
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Are you an aspiring welder or a seasoned professional looking to brush up on your welding material handling skills? Look no further! In this comprehensive guide, we’ll explore everything you need to know about properly …
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Preheating is a commonly used technique in welding. It involves heating the workpiece to be welded to a temperature above the ambient temperature before or during the welding process. Most modern specifications require specific preheating …
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Are you interested in welding but struggling to get the perfect weld? Do you want to know the tips and tricks for welding in different positions? Look no further! In this blog post, we will …
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I. Tig Welding 1. The Principle of Tig Welding Tig Welding is a method of gas-shielded arc welding that uses argon gas as a protective medium. 1- Molten pool 2- Nozzle 3- Tungsten electrode 4- Gas …
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Are you in the welding industry and want to learn more about the precautions for welding stainless steel? Look no further! In this blog post, we will provide you with essential information on the different …
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1. What is welding power supply? In an electric welding machine, the device that provides the necessary electrical energy for welding and possesses electrical characteristics suitable for the task is referred to as a welding …
1. The best voltage is not selected for welding construction Phenomenon: during welding, the same arc voltage shall be selected regardless of the size of the groove, filling and capping. In this way, the required …
The Top 5 Overlooked Details in Welding: Don’t Miss Them! Read More »
Argon arc welding is an electric arc welding method with inert gas “argon” as the protective gas. Argon is sprayed from the nozzle to form an inert gas protective layer in the welding area to …
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1. What are the characteristics of the primary crystalline structure of the weld? Answer: The crystallization of the welding pool also follows the basic law of general liquid metal crystallization, which involves the formation of …
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Are you interested in learning about the challenges and solutions for welding brass? Brass, a copper-zinc alloy, is notoriously difficult to weld due to the low boiling point of zinc, which causes evaporation and oxidation …
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1. Introduction Lightweight, high speed, safety, energy efficiency, comfort, and long service life are the symbols of modern railway vehicles. The key to achieving train speeding is to solve the problems of lightweight and sealing …
Welding rods are a commonly used welding material, but sometimes they can be difficult to use. Problems such as excessive spatter, unstable arcs, and poor weld formation can be caused by low-quality welding rods. Fortunately, …
When welding, especially when someone who is just learning to weld, generally they do not know what kind of current is appropriate. It is either large or small. So how can we judge the current …
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Regarding the alloy elements such as Si, Mn, S, P, Cr, AI, Ti, Mo, and V contained in welding wire, what is the impact of these alloy elements on welding performance? The following are explanations …
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1. DC reverse welding method shall not be used in general welding a) It is DC reverse connection b) DC positive connection During DC TIG welding, the heating capacity of …
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Aluminum alloy welding is very different from the welding of general carbon steel, stainless steel and other materials. It is easy to produce many defects that other materials do not have, which need to be …
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The key steps of argon arc welding can not be ignored: 1. Arc striking There are three arc striking methods for argon arc welding: scratch arc striking, lifting arc striking and high-frequency arc striking. Scratch …
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Austenitic stainless steel has good corrosion resistance because it contains high chromium and can form dense oxide film. When Cr18% and Ni8% are contained, a single austenitic structure can be obtained. Therefore, austenitic stainless steel …
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1. Characteristics of flux: Flux is an indispensable auxiliary material in SMT welding process. In wave soldering, flux and solder are used separately, while in reflow soldering, flux is an important part of solder paste. …
During the fabrication of stainless steel parts, deformation of the parts is a common issue that occurs as a result of welding. This deformation is only a surface phenomenon, caused by overheating of the weld …
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With the increasing demand of modern customers, we also cater to the basic manufacturing industry to abandon the traditional concept. The products should be refined, economical, professional and high-end to become the trend of times. …
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As a welding enthusiast, have you ever wondered how the welding parameters and processes affect the weld seam? If yes, then you’re in the right place! In this blog post, we will dive into the …
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Are you struggling with welding copper and stainless steel? You’re not alone. While the process is common, it can present some challenges, including the risk of copper penetration cracks. But don’t worry, we’ve got you …
High carbon steel refers to a type of carbon steel with a carbon (c) content higher than 0.6%. It is more prone to hardening compared to medium carbon steel and forms high-carbon martensite, which is …
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Mobile phones have become ubiquitous. Most people are familiar with the terms 1G, 2G, 3G, 4G, and 5G networks. However, in the welding industry, there is also a classification system for weld positions, referred to …
1G, 2G, 3G, 4G, 5G, 6G Welding Position Explained Read More »
Common defects of aluminum and aluminum alloy MIG welding joints include poor weld seam formation, cracks, porosity, burn-through, incomplete fusion, lack of penetration, slag inclusion, etc. I. Poor weld seam formation Poor weld seam formation …
