2014年5月30日星期五

The origin of magnetic stainless steel

According to research materials physics, magnetic magnetic stainless steel metal structures from the electron spin, electron spin quantum mechanical properties belong, either stainless steel 304 can also be "down." Ferromagnetic metals, electronics automatically rotated in the same direction, while the anti-ferromagnetic metal material, some of the electrons in the pattern for the rule, and the electrons moving in the opposite direction or adjacent Stainless steel factory spin, but triangular crystal the electronic grid, because each of the two triangles are electron spin in the same direction must therefore spin structure does not exist.

2014年5月7日星期三

magnetic stainless steel sheet deep drawing parts

1 large size stainless steel deep drawing stainless steel parts , not very large production volume, in order to save material , should use cast iron HT300, QT600-2 , etc., as convex and concave mold materials, may also be of special cast iron .
2 , small and medium size magnetic stainless steel sheet deep drawing parts , copper based alloys generally used as mold material, such as aluminum bronze, aluminum and iron bronze, phosphor bronze .
3 , for the smaller sized stainless steel deep drawing parts , the choice of carbide YG8, YG15 for the die , W18Cr4V as punch proved when drawing die radius and the inner wall of the aneurysm is not easy to form a bond .
4 , the use of silicon nitride ceramic molds for stainless steel deep drawing get better results , because the magnetism stainless steel is a typical inorganic non-metallic materials , and stainless steel vary widely , but it is very hard , strong wear resistance , not plastic deformation occurs , which can effectively overcome the adhesion of the die and the workpiece significantly improve die life.

2014年5月4日星期日

magnetic stainless steel furnace safety maintenance

Hydrogen as protective gas furnace . Seals required to achieve 10-6 th grade . Small amounts of air stainless steel sheets into the atmosphere will destroy protection , resulting in oxidation of the strip . Once the hydrogen leak , rising accumulate in the tower building structure will be very dangerous. So to take foolproof measures to ensure safety. To this end, the stove must have the following means :
In the steel import and export side sealing device is equipped with a flame detector ;
Monitoring furnace conditions ( temperature, pressure ) system ;
Devices and automatic emergency measure nitrogen purge ;
Hydrogen pressure monitoring equipment and automatic emergency measures ;
Equipment and automatic fire magnetic stainless steel sheets system emergency measures ;
Fire extinguishing the building , forced ventilation measures ; fire alarm center.