Carbon steel head manufacturing plant, manufacturer of carbon steel head http://www.0312666.com/ Phone 0317-8210122 Mobile 13722724665 carbon steel head plant introduction elliptical head technical parameters 1. Overall elliptical head, fragment perform JB/T4746-2002 standard, elliptical head spinning head perform JB/T4746-2002 standard, transition section to perform JB/T4746-2002 standard spherical head execution the "Spherical tanks" standard GB12337-1998, should be consistent with the GB150-1998 "Steel Pressure Vessels, HG20584-1998" Steel Chemical manufacturing technical requirements of the relevant provisions. 2 elliptical head, spherical head, cone section is at least naturally thick 2mm, specific feeding thickness is determined by the manufacturing to ensure minimum thickness of not less than the minimum thickness or pattern drawing technical requirements given thickness after press forming. (3) the overall head model with chord length ≥ 3/4Di, within (or outside) check the head (or outside) the shape of the surface deviation, maximum clearance shall not be greater than 1.0% Di, and shall not be a mutation, straight edge height shall be design drawings, tolerance +5-3 mm, roundness 1.0% Di and ≤ 15mm perimeter deviation by order contract. Elliptical head melon flap (with overall supply with melon valve head), the spherical head melon flap, folding transition section melon lobe (including the overall supply with melon valve cone section) to check with a full-size three-dimensional model, transition zone corner radius shall not be less than the specified value of the pattern, shape deviation maximum clearance ≤ 3mm. The transition section folding radius shall not be less than the radius of the pattern. 5 elliptical head, spherical head melon flap chord length ≥ 2000mm plane model chord length ≮ 2000mm; melon flap chord length <2000mm when the chord length of the plane model ≮ melon flap chord length. Elliptical head, the spherical head melon flap geometric dimensions allowable deviation detailed in the accompanying drawings. Elliptical head, the spherical head melons flap, the cone section melon flap surface without cracks, bubbles, scarring, folding, mixed and layered. 8 slice transition section is divided into positive cone shells and eccentric conical shell molding generally divided into two halves raw materials processing, in order to facilitate the processing, after forming the transition section is subject to the pre-assembled, pre-assembled rigid platform requirements, extraoral basis The circle diameter determined to be considered each patchwork reserved 2 to 3mm contraction margin, pre-assembled wrong side ≤ 2mm, the patchwork before welding the corners ≤ +5-0 mm.