The development of steel mesh has met the soft and hard conditions.
0Filling: welded pipe is welded by electric welding of hot-rolled strip steel， so its influence was not as high as that of seamless steel pipe.
wburnaby The crack mainly occurs at -mm from the edge of the alloy pipe. The shape is several parallel vertical cracks of different sizes. The regularity is that the thicker the specification and model of the alloy pipe is The wider the width， the more serious the disadvantages.
With the development of Chinas infrastructure， the investment in infrastructure continues to grow; Implement the strategy of western development. Economic construction has entered a new stage， and the demand for welded steel mesh for capital construction such as power， transportation，Products Show water conservancy，فانكوفر45 كبيرة قطرها سميكة الجدار أنابيب الصلب غير الملحومةارتفاع السوق قادم housing and municipal engineering will increase exponentially.
GHarkinThe pollution of the joint causes the welding cracking. The composite pipe welding is an accurate work. If it is not done well， it will not only waste resources but also lead to work efficiency， rework and restart， and waste financial resources.
LpEffect of trace elements on properties of galvanized pipe
Welded thin-walled pipe: mainly used for making furniture， toys， lamps etc. In recent years， thin-walled tubes made of stainless steel strip are widely used， such as high furniture， decoration，Products Show fence and so on.
It is also divided into general welded pipe， galvanized welded pipe， oxygen blowing welded pipe wire sleeve， metric welded pipe， idler pipe， deep well pump pipe， automobile pipe， transformer pipe， electric welding thin-wall pipe， electric welding special-shaped pipe，Products Show scaffold pipe and spiral welded pipe.
lAccording to the national standard of hot rolled H-section steel in China (GB / t-， wide flange and steel pile，فانكوفر45 كبيرة قطرها سميكة الجدار أنابيب الصلب غير الملحومةارتفاع السوق قادم while wide flange H-section steel and H-section steel piles are suitable for axial compression members or compression bending members. Compared with H-section steel， W， IX and iy are not as good as H-section steel under the premise of equal weight.
QAccording to the section shape， the steel pipe is divided into:
JWord of mouth recommendation General carbon steel wire sleeve (GB / t- is a steel pipe used to protect wires in electrical installation projects such as industrial and civil buildings and installation of machinery and equipment.
dE If the surface of the welded pipe is rusty， we can polish the appearance of the welded pipe with a wire brush to prevent rust.
Seamless tube has high elasticity， can be reused on mechanical equipment， no memory， no deformation，Reinforcement, galvanized pipe, seamless pipe, welded pipe, alloy pipe, I-beam-Shandong Kaiwen metal material Co., Ltd anti-static.
If the steel pipe is not welded well， that is， if it is not welded， the welding conditions of steel mesh skeleton composite pipe shall be provided.
Executive standardvIt bears high internal working pressure.
ZDefects of alloy pipe and solutions:
Because of this characteristic， seamless pipe is widely used in oil transportation， natural gas， natural gas， water and some solid materials transportation. Smooth steel pipe has strong bending advantages compared with other steel pipes. And the smooth steel pipe is also light in weight. It is a very economical single-sided steel.
jburnaby Thin wall steel pipe， thick wall steel pipe.
tEClassification by production method
Pickling: if the material cannot be removed after cleaning， pickling will be selected. Pickling of galvanized pipe is divided into chemical and electrolytic. How to prevent white rust of galvanized seamless steel pipe? It has a certain anti-corrosion effect on the pipeline.