The Significant Meaning Of LSAW

At present, long-distance oil and gas transportation mainly uses pipelines. The pipeline steel pipes used in long-distance pipelines mainly include SSAW and LSAW. Since the SSAW is made of strip steel, the wall thickness is limited, and the improvement of steel grade is limited by the heat treatment of the material. In addition, SSAW have some difficult-to-overcome shortcomings, such as long welds, large residual stress, and poor weld reliability. With the increasing requirements for oil and gas transportation steel pipes, they are no longer used in densely populated areas and areas with high reliability requirements. LSAW are gradually replacing SSAW.

1. Recently, China is accelerating the development of oil and gas in the East China Sea. As oil production develops to the depths of the ocean, due to the influence of composite forces such as pressure, impact force and bending force on the pipelines laid on the seabed, flattening also occurs, which is the weak link of SSAW.  In order to improve the pipeline transportation capacity and ensure that the submarine pipeline develops in the direction of thick walls, submarine pipelines mostly use LSAW. Therefore, compared with SSAW, LSAW have higher dimensional accuracy and are easier to repair, so from this aspect, LSAW are also the first choice.

2. Coal slurry, ore slurry and slurry pipelines need to use LSAW. Pipeline transportation is "paste-like" and pipeline transportation is in the upward direction. Since the weld excess height of LSAW is a spiral line, it has great resistance to coal slurry and the pipeline requires a larger wall thickness, so LSAW tend to be used.

3. Machinery, construction, chemical industry and other industries need LSAW. At present, the machinery industry uses forgings to manufacture valve seats and then processes the inner hole, which is labor-intensive, time-consuming and material-consuming. If thick-walled LSAW are used, it will be much more economical. In addition, due to the mechanical properties requirements of anti-flattening, only LSAW are used for construction pipes; chemical pipes also hope to use LSAW.

Our company's products are mainly used for high, medium and low pressure fluid transportation pipelines and structural steel pipes such as oil, natural gas, water, steam and coal gas, and have undertaken landmark engineering construction at home and abroad. The products are sold to various cities and exported to more than 80 regions such as Southeast Asia, the Middle East, Europe and the United States, and enjoy a high reputation in my country.

Do You Know The Advantages of Welded Pipes Compared With Other Steel Pipes?

There are many types of steel pipes on the market now, so what are the advantages of welded steel pipes among the many types of steel pipes? 

First of all, welded steel pipes are very suitable for mass production. The reason is that the manufacturing process of welded steel pipes is simple and universal, and it is manufactured by welding process, so it has high reliability and durability. The manufacturing process is simple and fast, reliable and durable, and the cost performance is extremely high. Naturally, it is widely produced and used. 

Secondly, complete specifications: welded steel pipes have very complete specifications, both small and large diameters, which can meet the needs of different customers. 

Finally, high cost performance: compared with other types of steel pipes, welded steel pipes have a very high cost performance.

Do you remember these characteristics of welded steel pipes? 

How To Judge The Quality Of Steel Pipes

First, take a look at the water pressure test to check the bearing capacity of the steel pipe. Steel pipes are mainly used in the construction of large-scale livelihood projects. Steel pipes must have the ability to be used safely for decades and decades under harsh conditions. Hydrostatic testing is particularly important for the safety of steel pipes.

Second, look at the flaw detection test to check the quality of the weld. Flaw detection testing is the most effective method to inspect the quality of welds. It can not only avoid problems with pores and impurities in steel pipes, but also significantly improve production efficiency and product quality compared to other methods that rely on manual flaw detection. Under the inspection of double guarantee, steel pipes are high-quality and qualified steel pipes.

Third, look at the manufacturing process. The durability and overall performance of steel pipes are affected by the manufacturing process. By adopting high-standard production technology, the structural strength of steel pipes can be effectively improved and undesirable impurities can be reduced. When purchasing, you should fully understand the manufacturer's production capacity and check the manufacturer's certification documents. This is also a good way to understand its quality control level and technical level.

In short, when purchasing steel pipes, try to choose large-scale source factories with strict quality control and complete qualifications, and consider multiple aspects to ensure the quality and use effects of the project and avoid unexpected situations during use.

Safety Production Month For Our Tianjin Manufacturing Factories

This June is the 23rd National "Safety Production Month", and the theme of the event is "Everyone talks about safety, everyone can respond to emergencies - unblocked life channels". On May 31, the Municipal Safety Committee organized a Tianjin branch meeting of the national "Safety Production Month" event launch video conference. Liu Guiping, member of the Standing Committee of the Municipal Party Committee and Executive Vice Mayor, attended the meeting and announced the launch of Tianjin's "Safety Production Month" event.

At the launch meeting of Tianjin's "Safety Production Month" event, the theme promotional films "Everyone Talks about Safety, Everyone Can Response to Emergencies - Unblocked Life Channels" and "Salute to Safety Guardians" planned and produced by the Office of the Municipal Safety Committee and the Municipal Emergency Management Bureau were released, and the key tasks of "Safety Production Month" were deployed. At the launch ceremony, the video was connected to the branch venue activities of China Construction Sixth Bureau, and the flag was presented to the emergency rescue team of China Construction Sixth Bureau on the spot. All personnel on the scene carried out a safety production oath. The company employees performed the "pre-shift meeting" situational drama based on the actual work, and carried out emergency rescue drills for fire accidents.

During the "Safe Production Month", all districts, relevant departments and units in the city will focus on "In-depth Study and Implementation of Xi Jinping's Important Expositions on Emergency Management", organize special seminars, concentrated lectures, and coaching reports, carry out online theme propaganda of "Xi's Voice of Safety" and "Learning Essentials", and transform the results of theoretical learning into innovative ideas, practical measures and work effectiveness for safe production work. Focusing on the main content of "unblocking life channels", we will widely carry out emergency evacuation drills simulating fires and earthquakes, knowledge quizzes on risk avoidance and escape, and other activities to enhance the public's risk avoidance capabilities. At the same time, we will combine the "Safe Production Month" activities with solving the hot and difficult problems in the current safety development, and with the three-year action plan for the root cause of safe production that is being carried out in the city. We will carry out in-depth investigation and rectification of safety accident hazards in key industries and fields, implement the 15 hard measures for safe production and the 50 specific implementation measures of our city, promote the dynamic elimination of major accident hazards, make full use of the reporting reward mechanism, encourage the general public to actively report hidden dangers around them, and continuously improve the level of inherent safety. The main responsible persons of various enterprises and institutions should carry out activities such as "Everyone Talks about Safety Production" and "Popularizing Laws through Cases" in combination with typical accident cases in their industry, and organize employees to actively participate in the "National Safety Open Class", watch the "Safety Production Month" theme propaganda film, accident warning education film, typical case analysis film, etc., to further establish the concept of safe development.

From May 30 to June 16, Tianjin organized a light show with the theme of "Everyone Talks about Safety, Everyone Can Respond to Emergency-Smooth Life Channel" at key scenic spots along the Haihe River, buildings around the Olympic Sports Center, and 256 smart street light display screens to further create a social atmosphere for safety publicity and promote the full implementation of the "Safety Production Month" activities.

The responsible comrades in charge of key member units of the Municipal Safety Committee and members of the leadership team of the Municipal Emergency Management Bureau attended the launch ceremony at the main venue. The responsible comrades in charge of the district governments, the responsible comrades of relevant member units of the district safety committees, and the heads of relevant key enterprises in each district, the responsible comrades of China Construction Sixth Bureau, the responsible comrades in charge of key state-owned groups and some enterprise representatives listened and watched at the branch venue.