C2F transfer joint structure form classification

When the carburized body has just been dissolved into the C2F joint, the carbon content of the C2F joint is still uneven, the carbon content of the original carburized body is higher, while the carbon content of the original ferrite body is lower, only after a long period of insulation or continued heating, so that the carbon atoms can be fully diffused to obtain a uniform composition of the C2F joint. The process of C2F jointing of sub-eutectoid and over-eutectoid steels is basically the same as that of eutectoid steels. When the heating temperature only exceeds Ac1, only the pearlite in the original organization can be transformed into C2F joints, still retaining part of the first eutectic ferrite or first eutectic carburized body. Only when the heating temperature exceeds Ac3 or Accm and the holding time is long enough, can a uniform single-phase C2F joint be obtained. Before welding, rust, oil, moisture, paint, etc., which are harmful to welding, should be removed, and a suitable steel welding rod should be selected.
 
Spot welding time distance is shorter than the carbon steel spot welding spacing, to remove the weld slag should use stainless steel pipe brush. After welding, in order to prevent local corrosion or strength loss, the surface should be abrasive treatment or cleaning. Pay attention to prevent the construction of scratches and the adhesion of pollutants, C2F force transfer joint state of stainless steel construction.
However, with the extension of time, the residue of the paste liquid should be washed on the surface when removing the C2F transfer joint after construction in accordance with the C2F transfer joint service life, and C2F transfer joint tools should be used, and the surface should be cleaned in order not to allow iron filings to adhere. In order to prevent scratches and contaminants from adhering during construction, C2F transfer joints are constructed in the state.