To Hebei million gold piping | stainless steel bellows [manufacturers] | bellows provided by Hebei billion gold piping. We are Hebei billion gold Pipe Manufacturing Co., Ltd. (www.yijinguanjian.com) here: Hebei Cangzhou specializes in: insulation joints, insulating flange, flanges, elbows, head, tee, head, Stone, when anti- When the size is smaller than the wavelength of the scattering body, the type of incident light with different wavelength components scattering experimental and theoretical studies have shown that the scattering intensity is inversely proportional to the fourth power of the wavelength of the incident light, for example, the atmosphere in which the small molecule and Shun pull dust, sunlight will produce significant scattering. If there is no atmosphere horizontal bellows prices, the air does not scatter light, the sky should be a black background, which is outside the atmosphere and the astronauts on the moon seen out of sight We can see why the bright sky in the day, is due to the scattering of sunlight by the atmosphere, while the light is scattered from all directions into the eyes of the limits of our reason. clear sky appear blue because of the white Shortwave strong scattering component, and thus in the direction of deviation from the direct sun, always blue-purple than red and yellow components of the composition to be more. while the sun and the reason is glowing red sunset and that was due to the evening sun dipped toward the ground, the The thickness of the atmosphere through much thicker than noon, which was a lot of short-wave sunlight scattered along the original direction is one of the main long-wave components. comparison, the midday sun direct ground, sunlight passes The thickness of the atmosphere is thin, short-wave scattering does not sooner or later turn out. Tian Shi County winged eye and white. Hebei billion gold bellows compensator Manufacturing Co., Ltd. is a professional manufacturer of metal compensator, a manufacturer, over the years has always been our customers love and trust! Bellows Bellows plane stability comprehensive stress its compressive strength is given by the standard and the week can be seen in calculation methods and evaluation criteria to the stability, strength problems are both reflected. When the bellows design allowable lower life, not only to its integrated meridional stress is high, the hoop stress is relatively high, so quickly into the bellows local plastic deformation, resulting bellows instability. For the internal pressure of the bellows, the formation of plastic hinges in the displacement and stress peaks and troughs of the bellows, plus the pressure of stress, bellows quickly produce plane instability. This is the fundamental reason for the low fatigue life of the bellows under conditions of plane buckling displacement high pressure far below the fatigue life of the bellows. For example in the pre-displacement state, namely the bellows when the allowable displacement is 1/2 value of an allowable fatigue life of the bellows 200, which allows the design pressure not reached, the instability of the plane has been generated; XU When the fatigue life of 1000 cycles with bellows, stainless steel bellows manufacturers design pressure is reached, the bellows in the plane steady state, reaching 1.5 times the design pressure, the bellows in a critical state of instability; allowable fatigue life is 2000 times bellows reached 1.5 times the design pressure, the bellows is still in the plane steady state. From external pressure bellows bellows see longitudinal section, the equivalent of an arch beams under pressure, work the bellows in tension, the equivalent of a high arch arch beam reduces its ability to resist buckling natural decrease. When the bellows single wave of displacement is too large, large diameter corrugated straight portions tilt bellows suppliers, making bellows crest diameter narrowing trend, but the peak ring diameter is determined, in order to coordinate the deformation, it will generate peak collapse, bellows circumferential instability. In the corresponding standards at home and abroad, about the displacement of the bellows to the external pressure affect the stability of the week were not involved, need to be further explored.