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Connection method of q355b square pipe
In the prior art, a two-step method is used to connect q355b rectangular tubes. First, the square tube is pressed out of the joint, and then the joint of the two tubes is connected with a docking mechanism. This requires a lot of human resources and has low R & D and...Read more -
Fabrication technology of Q355D low temperature square tube
Domestic petroleum, chemical and other energy industries need a large number of low-temperature steel to design and produce various manufacturing and storage equipment such as liquefied petroleum gas, liquid ammonia, liquid oxygen and liquid nitrogen. According to China...Read more -
Why does the color of galvanized square pipe turn white?
The main component of galvanized square pipe is zinc, which is easy to react with oxygen in the air. Why does the color of galvanized square pipe turn white? Next, let's explain it in detail. The galvanized products should be ventilated and dry. Zinc is amphoteric metal,...Read more -
How to solve the corrosion problem of galvanized square pipe?
Most of the square pipes are steel pipes, and the hot-dip galvanized square pipes are coated with a layer of zinc on the surface of the steel pipes by a special process. Next, we will explain in detail how to solve the corrosion problem of the galvanized square pipes. ...Read more -
How to remove oxide scale on large diameter square pipe?
After the square tube is heated, a layer of black oxide skin will appear, which will affect the appearance. Next, we will explain in detail how to remove the oxide skin on the large-diameter square tube. Solvent and emulsion are used t...Read more -
Do you know the factors that affect the outer diameter accuracy of thick walled rectangular tubes?
The outer diameter accuracy of thick walled square rectangular pipe is determined by human, and the result depends on the customer. It depends on the customer's requirements for the outer diameter of seamless pipe, the operation and accuracy of steel pipe sizing equipmen...Read more -
Do you want to make your products lighter and stronger than before?
By using thinner and stronger structural and cold forming steels like high-strength, advanced high-strength and ultra-high-strength steels, you can save on production costs thanks to easy bendability, cold-forming properties and surface treatment. Additional savings in w...Read more -
Method of removing oil on the surface of square tube
It is inevitable that the surface of the rectangular tube will be coated with oil, which will affect the quality of rust removal and phosphating. Next, we will explain the method of oil removal on the surface of the rectangular tube below. ...Read more -
Surface defect detection method of square pipe
The surface defects of square tubes will greatly reduce the appearance and quality of products. How to detect the surface defects of square tubes? Next, we will explain the surface defect detection method of the lower square tube in detail ...Read more -
How to straighten galvanized square pipe?
Galvanized square pipe has a good performance, and the demand for galvanized square pipe is very large. How to straighten the galvanized square pipe? Next, let's explain it in detail. The zigzag of galvanized square pipe is caused by imp...Read more -
Essential difference between welded square pipe and seamless square pipe
The production process of square tubes is simple, the production efficiency is high, the varieties and specifications are various, and the materials are different. Next, we will explain the essential differences between welded square tubes and seamless square tubes in detail. 1. Welded square pip...Read more
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