技术要求
TECHNICAL REQUIREMENTS
1.不锈钢复合钢板按GB/T8165-1997《不锈钢复合钢板和钢带》Ⅰ级或JB4733-1996《压力容器用爆炸不锈钢复合钢板》B1级选用。
STAINLESS STEEL CLAD PLATE SHALL BE USED GRADE I IN ACCORDANCE WITH
GB/T8165-1997《STAINLESS STEEL CLAD PLATE》 OR GRADE B1 IN ACCODANCE WHIT
JB4733-1996 《EXPLOSIVE STAINLESS CLAD STEEL PLATE FOR PRESSURE VESSELS》.
2.管板密封面应与轴线垂直,其垂直度允差为0.4mm。管孔应严格垂直于密封面,其垂直度允差为0.08mm。
TUBESHEET FACE SHALL BE PERPENDICULAR TO THE AXIS LINE.TOLERANCE OF
PERPENDICULARITY SHALL BE 0.4mm.TUBE HOLE BE PERPENDICVLAR TO TUBE
SHEET FACE,TOLERANCE OF PERPENDICULARITY SHALL BE 0.08mm.
3.管板钻孔后大于或等于96%的孔桥宽度必须大于或等于5.25mm,允许有小于或等于4%且不超过5个最小孔桥宽度为3.175mm。
NO LESS THAN 96% OF LIGAMENT WIDTH BETWEEN CONTINOUS HOLES SHALL
BE MORE THAN 5.25mm,THE MINIMUM WIDTH SHALL BE 3.175mm. THE NUMBER
OF CONTINOUS HOLES SHALL BE NOT EXCEEDED 5 (4%).
4.螺柱孔中心圆直径和相邻两螺柱孔弦长公差为%%p0.6mm,任意两螺柱孔弦长公差为%%p1.5mm。
TOLERANCE OF BOLT OR HOLE CIRCLE DIAMETER SHALL BE %%P0.6mm.
TOLERANCE OF CHORD BETWEEN TWO RANDOM BOLT HOLES SHALL BE %%P1.5mm.
5.除注明者外,加工面未注公差尺寸的极限偏差按GB/T1804-2000《一般公差未注公差的线性和角度尺寸的公差》中m级进行验收。
THE UNNOTED TOLERANCE OF MACHINED SURFACE SHALL BE INSPECTED IN ACC
-ORDANCE WITH GB/T 1804-2000 OTHERWISE NOTED.THE ACCEPTABLE QUALITY
SHALL BE CLASS m.
6.图中未注尖角倒钝。
SHARP CORNERS SHALL BE CHAMFERED.
