Delta1.2mm stainless steel rollThe specifications are very strict

No. When the initial micro crack meets the ferrite phase, it will not continue to expand, and the ferrite content should be about 6%.

First of all, let's first understand what stainless steel is. Generally speaking, stainless steel is steel that will not rust. But in the academic sense, steel that can resist the corrosion of weak corrosive media such as air, steam and water and chemical corrosive media such as acid, alkali and salt. Also known as stainless acid resistant steel. In practical application

Delta.Theoretical weight of stainless steel pipe: w= outer diameter - wall thickness x wall thickness x0.02491.

High frequency welding speed makes it difficult to remove the burr in the welded pipe. At present, the high-frequency welded stainless steel pipe can not be borne by the chemical and nuclear industries, which is one of the reasons.

.The quality can be effectively guaranteed and the construction is difficult. Therefore, it may occur that both sides of the weld cannot be ventilated. At this time, how to ensure the argon filling protection inside the weld becomes a difficult problem. In the actual construction on site, we use water-soluble paper on both sides of the weld to block the gas from the weld center to the outside

The effect of the small hole is very fine and beautiful. In modern steel plate and pipe drilling, laser drilling is the best choice. Manual argon tungsten arc welding, CO2 welding and manual arc welding can be used for the butt welding of 316L stainless steel plate.

Use flux coated welding wire (self shielded welding wire) for backing TIG welding.

At the same time, it meets the special requirements of complex working environment for pipeline performance. Deformation-3d finite element simulation software is used to simulate the three roll cross rolling forming process of double-layer casing with outer layer 21-2n austenitic heat-resistant stainless steel and inner layer 12cr-12ni martensitic heat-resistant stainless steel

Stainless steel plate can be cut by three-dimensional five axis laser. The fully automatic infinite rotation structure can realize 316°, Groove cutting. Conventional laser cutting can only complete vertical linear cutting, and the cutting edge of the steel plate forms a right angle with the plane. Numerical control programming of laser cutting machine

Where is good.The first pass rate of welding) is worth using.

The thin-walled stainless steel pipe is durable and has been recognized by the engineering community and the relevant parties are starting from the aspects of reducing the wall thickness and lowering the grid, the price of stainless steel pipes is not high so as to facilitate the further development. In particular, which is intuitive and convenient. However, it is not applicable to steel pipes made of hard or thin steel.

The best way to improve the quality of stainless steel pipe fittings is to change the ingot casting process into the billet casting process. Due to the improvement of continuous casting process quality means, this has become a necessary means to improve product quality.

Focus on Development.The rusting of 304 material may be caused by the following reasons: there is chloride ion in the service environment.

The Chinese cold rolled non oriented silicon steel strip (sheet) indicates: dw+ iron loss value (at the frequency of 50Hz, the magnetic induction peak with sinusoidal waveform is 5T per unit weight iron loss value.) 100 times + 100 times the thickness value. For example, dw470-50 indicates that the iron loss value is 7w/kg,

Special shaped pipes generally have large moment of inertia and section modulus, and have large bending and torsion resistance, which can greatly reduce the structural weight and save steel.

Delta.Several kinds of stainless steel backing welding used for stainless steel backing welding usually adopt TIG process. According to the actual situation on site, professional 316L stainless steel pipe, 310S stainless steel pipe, 904L stainless steel pipe and other special products, 20 old brands,DeltaPrice of 316Ti stainless steel pipe, with price advantages and guaranteed quality We can use

Since the beginning of last year,DeltaStainless steel strip 304 price,Delta2205 stainless steel pipe manufacturer, foreign countries have frequently carried out “ Double anti ” It has a great impact on China's stainless steel casting industry. Export is a large part of the development of China's stainless steel industry, and occupies a huge market share in its industrial development,

After annealing the stainless steel plate in advance, the cold working can be stopped without the risk of cracking.