Pressure vessel equipment indispensable important component

by:Jinzong Machinery     2020-10-14
Head is petroleum chemical industry, atomic energy to the food and pharmaceutical industries in the pressure vessel equipment indispensable important component. Head is the end cover on the pressure vessel, pressure vessel is one of the main pressure components. Head of pressure vessel is directly related to the quality of the long-term safe and reliable operation. For a standard series of carbon steel head generally adopts the stamping, but for the non-standard series of head or a large head diameter, generally USES the spinning forming. Spinning relative to the stamping with mould cost saving, the advantages of size can be adjusted in accordance with the requirements. But when the head thickness thicker or very high strength of materials using cold spinning is difficult, for at the end of the cold spinning equipment capacity limit head, if use cold spinning, will occur, the problem such as micro cracks on the surface of materials; For more than ability range of cold spinning cannot be processed. At this time, can use method of hot spinning processing. Elliptical head forming and split forming as a whole. According to the overall forming processing mode is mainly stamping and spinning forming, and is rarely used, gas explosion forming ( Liquid) Inflation pressure forming, etc. According to the overall forming processing temperature can be divided into cold and hot working ( The general appellation of the processing temperature, a kind of practical for cold working) 。 By the combination of processing methods and temperature had the hot spinning forming, hot stamping, cold spinning forming, cold stamping and pressure drum forming. The hot spinning forming is the material of hot working and spinning cone head for carbon steel, low alloy steel, composite panels, stainless steel and non-ferrous metals such as copper, aluminum, titanium standard for GB25198 - execution 2010. Variety is more, the main body of the conical head conical head cone under the action of internal pressure. Materials of conical head for carbon steel, low alloy steel, composite panels, stainless steel and non-ferrous metals such as copper, aluminum, titanium standard for GB25198 - execution 2010. Variety is more, the main body of the conical head conical head cone under the action of internal pressure. Materials of conical head for carbon steel, low alloy steel, composite panels, stainless steel and non-ferrous metals such as copper, aluminum, titanium standard for GB25198 - execution 2010. Variety is more, the main body of the conical head conical head cone under the action of internal pressure. Thin wall head manufacturer, thin-walled head manufacturer. Thick squash shaped head factory, environmental protection equipment head factory, chemical pipe head factory in xinjiang, urumqi pipe head factory, ladle bottom head factory, dry mortar tank head factory, non-standard container head factory, nantong factory of stainless steel elliptical head. Head of pipeline steel is commonly used qualitative: X42 X46 X52 X56 X60 X65 X70 and X80 X90 L175 L210 L245 L290 L360 L390 L415 L450 L485. Because the butterfly head is shallow, the higher the compressive stress values on the edge of the head, so we at the time of making head, generally will head length axis ratio in 2. Less than 6. To the requirement of the thickness of the head is to be on the premise of meet the strength, to some, large diameter thin-walled ellipse head to consider his stiffness requirements. Dished head, this is a kind of a spherical straight section length and the transition area, a head composed of three parts. Dished head is the size of the edge stress and the transition zone radius and the ratio of the spherical radius have relations
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