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Welding heat-affected zone is different from welding seam. Welding seam guarantees performance requirements through chemical composition adjustment, redistribution and proper welding process, while the performance of heat-affected zone cannot be adjusted by chemical composition. This is due to the microscopic effect of thermal cycling. Due to the uneven distribution of the structure, for the general welded structure, the hardening, embrittlement, toughening and softening of the heat-affected zone, as well as the comprehensive mechanical properties, corrosion resistance and fatigue properties, should be determined according to the specific application requirements of the welded structure. A complete high-frequency welded pipe weld is composed of a fusion zone and a heat-affected zone. The fusion zone is a narrowly defined weld. Welding theory and practice point out that the quality of welding depends not only on the weld, but also on the heat-affected zone, sometimes heat-affected The ... Continue reading →

So many job seekers out there make mistakes in their resume, some of which might even cost them the job. Despite taking the time and trying to make the resume appealing, recruiters could still spot something that leaves a bad impression. Tweaking your resume and eliminating some of the simplest mistakes could help you land great jobs. Take a look at these 5 common mistakes, revealed by a professional resume writer, that you should avoid in your resume. Mistake 1: Grammatical Mistakes and Typos Granted, everyone already knows about this one, but it deserves to be mentioned. Once you have finished making your resume, check it multiple times until you are absolutely sure that it’s 100% free from typos and grammatical errors. Regardless of your achievements, an employer won’t be happy when they identify a mistake on your resume. It would lead them to believe that you’ll make mistakes at work as well. So, let your friend or family member check your resume, or hire ... Continue reading →

For seamless steel tube(a53 seamless)cold rolling, the martensite is changed to seamless steel tube before the rolled piece enters the precision extruder. The rough rolling is still carried out under the condition of full martensite, and then according to the ultra-rapid refrigeration system between the fine extruder and the rough extruder, the temperature of the hot rolled strip is reduced to change before entering the first fine extruder Click below. The nitriding method of seamless steel pipe is mainly to use a nitriding furnace, place the seamless steel pipe in the feed frame, and then use the driver to lift the product and place the workpiece on the bottom of the furnace for heating. In addition, the nitriding furnace with the design scheme of furnace door lifting load can be made, and the workpieces of the wall hanging products can be heated according to the special tools for lifting and wall hanging. The furnace shell of the nitriding furnace is generally driven by a reducer ... Continue reading →

Information technology translation and localization is important to move a certain piece of technology, tool, software, mobile phones, etc. from one culture and economy into another. It plays an essential role in the current world as it is not limited to a single benefit of targeting a wider audience. With effective information technology translation services, your business could also share their feelings, perceptions and expressions with other global businesses.     In today's world, people believe that technology can solve all the problems. This is not true in case of translations as it is still dependent on humans for accuracy. Machine translations are inaccurate, especially, when it comes to information technology translation as it requires usage of appropriate vocabulary and terminology. Moreover, translation of information technology requires some extra care and attention so that there should be no scope for error. Choosing the right translation services ... Continue reading →

If you are looking for a new job, you have to traverse through the process of job applications, which is not always a delightful experience. Not to mention the stress one would go through when creating a resume, especially when they haven’t updated it in a while. Hiring professional resume services Sydney can save so much of your time and even improve your chances of getting the job you want. Here are 4 reasons for choosing an expert resume writer. Keep Your Resume Updated: As business trends change from time to time, it is necessary to adapt to such developments. A professional resume writer will be aware of such changes and offer you the guidance required as well. They can update your resume with the latest formats and elements on trend, so you will stand out from the crowd. Save Time: Editing your existing resume requires so much time, let alone making a new one from scratch. It can be daunting to update your resume when you have changed roles recently. However, ... Continue reading →

In recent years, various forms of steel structures have been widely used in large space buildings such as stadiums, airports, stations, equipment production lines, convention and exhibition centers, and theaters. The tube truss structure is a part of the steel structure and is used extensively. Most of the pipe trusses are subjected to axial pressure or tension and are evenly dispersed in the cross section, so it is easy to play the role of materials. Therefore, this feature is the foundation of the pipe truss structure, and the structure's own weight is also very small. It can be made into various shapes of trusses, arches, frames and towers, etc. Nowadays, the materials used for tube truss structure are also very wide, which has also been widely used. In addition, most tube trusses are connected by welding between nodes. Before welding, we must cut according to the weld shape of each component. However, because the rods in the tube truss structure intersect the rods, the ... Continue reading →

Welded pipe blank is the raw material for manufacturing welded pipe. Its mechanical properties and chemical composition have a far-reaching impact on the quality of welded pipe. Its width is an important factor to determine the weld strength. We usually say that the appropriate width of welded pipe blank refers to the width of a given thickness. The determination of the width is restricted by many factors. Precision welded pipe is inseparable from accurate billet width. In order to obtain accurate welded pipe with the same thickness, it is necessary to consider the changes of billet in the forming process. The changes are: the amount of narrowing in the forming process, the amount of consumption converted into internal and external burrs in the welding process, and the amount of consumption reserved for reducing the diameter of welded pipe in the sizing process. The sum of these changes is the amount of wear The total variation of the pipe from the filler metal to the finished product. ... Continue reading →

Welded steel pipes, also known as welded pipes, are steel pipes welded by steel plates or steel strips. Welded steel pipes "have the advantages of simple production process, high production efficiency, more varieties, less equipment funds, etc., but the total strength is lower than seamless steel pipes. Since the 1930s, with the rapid development of high-quality strip rolling and welding With the advancement of inspection technology, the quality of welding continues to improve, and the varieties and specifications of welded pipes are increasing, seamless steel pipes are replaced by more and more fields. Welded steel pipes through welding can be divided into straight welded pipes and spiral welded pipes. The process of straight seam welded pipes is carried out. Simple, high production efficiency, low cost and rapid development. The strength of spiral welded pipes is generally higher than that of straight welded pipes. Welded pipes with different pipe diameters can be produced ... Continue reading →

English is a subject that virtually everyone enjoys, and this is because there is so much to learn and appreciate. At the same time, when students are told to work on English tasks, they have the same reaction. If you're a student searching for a quick fix, the best option is to look for English Assignment Help. When we try to give students with English assignment help, we know that they require specialists fluent in the English language and are familiar with the writing styles and formats used in universities and colleges. This is why we try to use only native English speakers for our English assignment writers. The majority of our English assignment writers have English degrees, such as master's degrees in English and double honors in English literature. Continue reading →

The forming technology methods for manufacturing large-diameter straight seam steel pipes include UOE forming method, row roll forming method (CFE), CE forming and so on. For most of the forming processes, the last process is to weld the pipe diameter again to increase the welded steel pipe. Diameter expansion is a pressure processing technology that uses hydraulic or mechanical means to apply force from the inner wall of the steel pipe to expand the steel pipe radially outward. Diameter expansion has become a very important process in the production of large-diameter longitudinally welded pipes that can ensure the finished pipe. The device is simple and effective. The process: use mechanical expansion to divide the diameter section of the side portion to radially expand along the pipe in a stepwise manner along the longitudinal direction, and plastic deformation is achieved during the entire length of the pipe section. Let me introduce to you the method of treating heat treatment of ... Continue reading →