frustum of head-封头展开尺寸计算



			Calculation Sheet of				Doc. No._________
			flat cover with support ribs				Page ____of____
						球型封头展开
						Frustum of Hemisphere head
						封头半径R
						radius of head	500	mm
						封头直边高度H
						skirt length of head	25	mm
						封头展开直径尺寸OD
						Frustum out-diameter of Hemisphere head
							1620.796	mm
						2:1椭圆封头展开
						Frustum of 2:1 Elliptic head
						封头外径D
						outer-diameter of head	800	mm
						封头直边高度H
						skirt length of head	25	mm
						封头最小厚度δ
							7.8	mm
						厚度减薄率%
							13	%
						封头材料密度
							7.8	g/cm3
						标准钢板负偏差
							0.3	mm
						封头展开直径尺寸OD
						Frustum out-diameter of Hemisphere head
							1005.900	mm
						封头名义厚度δ
							10.000	mm
						封头片重量
							82.093	㎏
						15%碟形封头展开
						Frustum of 15%Torispherical head
						封头中径D
						mid-diameter of head	400	mm
						封头直边高度H
						skirt length of head	25	mm
						封头展开直径尺寸OD
						Frustum out-diameter of Hemisphere head
							530.000	mm
						10%碟形封头展开
						Frustum of 10%Torispherical head
						封头中径D
						mid-diameter of head	400	mm
						封头直边高度H
						skirt length of head	25	mm
						封头展开直径尺寸OD
						Frustum out-diameter of Hemisphere head
							510.000	mm