Stainless steel butterfly valve rust stainless steel butterfly valve solution

Stainless steel butterfly valve rust phenomenon occurs during use. After metallographic analysis, dyeing test face, heat treatment test face, SEM and other test analysis, the key factor to find out the material corrosion is that the carbides along the grain boundary in the material form a chromium-depleted zone, resulting in corrosion of the stainless steel butterfly valve. Stainless steel butterfly valve rust solution 1 test method Shanghai Hongfeng Valve Reference: Sampling for chemical composition analysis (to determine compliance with the standards), metallographic examination, heat treatment process test and SEM analysis. 2 test results and analysis 2.1 Chemical composition Chemical composition analysis results and standard components. 2.2 Metallographic analysis From the rust phenomenon of the butterfly valve cut the metallographic sample, after grinding polishing, corrosion with aqueous ferric chloride, Neophot-32 metallographic microscope was observed and analyzed, the microstructure of austenitic Body with another precipitate composition. In theory, the normal austenitic stainless steel after heat treatment should be uniform austenite. Another precipitate appears in the organization what is tissue, there are two judgments: one is σ phase, the other is carbide. The conditions for the formation of sigma phase and carbides are different, but all have one common feature that is the sensitivity of austenitic stainless steel to intergranular corrosion.

Goodsense Aircraft Tow Tractor advantages:

With 250,000KG traction ability, the TD160 aircraft tow tractor was designed to move small and medium sized aircraft. The ground support equipment of tow tractor is the ideal tractor for handling towing operations of B767 and lower weight aircraft.

 

Product Highlight:

Four steering modes provide optimum maneuverability in tight places and ensure aircraft safety

Four wheel drive ensure the most efficient towing operation in all kinds of environment and conditions.

Dual circuit hydraulic brake system and wet disk brake system assure safety operation in can conditions.

Perfect embodiment in the tractor.

Comfort cabin , excellent operator visibility and visual imaging system.

 

General

 

 

 

Model

 

TD160

Power Type

 

Diesel

Rated Traction

kg

250000

Service Weight

kg

16500

Overall Length

mm

5080

Overall Width

mm

2200

Height

mm

1880

Wheelbase

mm

2300

Turning Radius

mm

7000(Four Wheels)/
10000(Two Wheels)

Travel Speed (No Load)

km/h

23

Wheel Thread (F/R)

mm

1870/1870

 


 

 Towing Tractor

Application Area:

1.Warehouse

2.Port

3.Factory

4.Distribution Center

5.Logistics

6.Airport

 

If you have any other questions,please contact us directly.Our forklift are all with high quality,and you can choose any other engine to equip.It can be produced according to your idea.And we invite you to visit our factory.

Aircraft Tow Tractor

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ZHEJIANG GOODSENSE FORKLIFT CO.,LTD , http://www.goodsenseforklift.com