(1) Since inclusions (slag) and other components are mainly oxides of Si, Al, Fe, etc., it can be said that non-metallic inclusions in steel are a form of gas present in the steel. The acoustic characteristic impedance of such materials is less than the acoustic characteristic impedance of the metal matrix, so the boundary between such defects and the matrix material can be regarded as a "soft" boundary, i.e. the boundary of cracks, white spots, shrinkage, bubbles, non-metallic incl…

Stainless steel flange tool wear fast: the above materials generally contain high melting point elements, plasticity, high cutting temperature, so that tool wear accelerated, grinding, frequent tool replacement, thus affecting production efficiency, improve the use of tool costs.　　Stainless steel flange easy to stick knife: stainless steel flange processing chip resistance is good, cutting temperature is very high. When the steadfast and tough chips flow through the front cutting knife profile…

Stainless steel non-standard flanges as a piping system used to achieve switching and flow control components have been very widely used in many areas of oil, water and electricity. So we know what are the uses of stainless steel non-standard flange fittings heat treatment? 1, to remove the stainless steel flange fittings in the processing of the modified phenomenon, so that the stainless steel hardness reduction to 220HV or less, so that the fittings in the installation of more convenient …

Stainless steel flange in the installation process of attention1. in order to prevent intergranular corrosion caused by heating stainless steel flange cover, welding current should not be too large. This time the current needs to be about 20% smaller than the carbon steel electrode, the arc should not be too long, the sandwich should be rapidly cooled, and it is desirable to reduce the weld seam.2. When welding stainless steel flange fittings, repeated heating will precipitate carbide, thereby r…

Problems occurring during the processing of stainless steel flanges　　Stainless steel flange processing needs to understand and pay attention to a number of issues: the　　1, weld defects: stainless steel flange weld defects more serious, if the choice of manual mechanical polishing processing methods to compensate, then the occurrence of polishing traces, the formation of uneven appearance, will affect the beauty;　　2, grinding and polishing passivation is not uniform: manual grinding and pol…

Pre-weld preparation of stainless steel flanges　　1, is about to weld the stainless steel bellows and flange tube on the oil and other dirt finishing clean. If the weld is cracked and leaking, the original weld scar should be sorted out, flange tube straight pipe at grinding out the metal luster, bellows straight pipe at too thin, can not grind, grinding finishing, the use of hand emery cloth sanding bright on the line.　　2, welding assembly: the best assembly gap is 0, because the processing …

Do you know the correct installation method for stainless steel flanges? Here we look at together.A, stainless steel flange should be sufficient strength, fastening shall not be deformed. Flange sealing surface should be flat and clean, the installation of stainless steel flange to carefully clean oil and rust spots.Second, the gasket should have good oil resistance and anti-aging properties, as well as relatively good elasticity and mechanical strength. Installation of stainless steel flange sh…

Stainless steel flange should be many people know things, in fact, is a kind of parts only, in the pipe and tube of the meeting place, use it to make two connected with each other, such parts in time stainless steel flange, very simple and easy to understand. But it is such a small part, the things behind is also very knowledgeable, we should learn how to maintain the parts.First of all, in the stainless steel flange welding for the time, we are to avoid the cover corrosive words, in fact, in th…