1. 銅合(he)金法(fa)蘭的尺(chi)寸公(gong)差應(ying)符合(he)GB/T 15530.8-1995《銅合(he)金及復合(he)法(fa)蘭技術條件(jian)》的規(gui)定。

2. 銅(tong)(tong)(tong)合(he)金(jin)(jin)整體(ti)鑄造(zao)法(fa)(fa)(fa)蘭、銅(tong)(tong)(tong)合(he)金(jin)(jin)帶(dai)頸(jing)平焊(han)法(fa)(fa)(fa)蘭、銅(tong)(tong)(tong)合(he)金(jin)(jin)平焊(han)環松套(tao)(tao)鋼(gang)法(fa)(fa)(fa)蘭、銅(tong)(tong)(tong)管折邊和(he)銅(tong)(tong)(tong)合(he)金(jin)(jin)對焊(han)環松套(tao)(tao)鋼(gang)法(fa)(fa)(fa)蘭等四(si)種法(fa)(fa)(fa)蘭的未注形狀(zhuang)(zhuang)和(he)位(wei)(wei)置公(gong)(gong)差(cha)應符(fu)合(he)GB/T 1184-1996《形狀(zhuang)(zhuang)和(he)位(wei)(wei)置公(gong)(gong)差(cha) 未注公(gong)(gong)差(cha)值(zhi)》中(zhong)(zhong)的K級(ji)；未注尺寸的線性(xing)和(he)角度尺寸公(gong)(gong)差(cha)應符(fu)合(he)GB/T1804-2000《一般公(gong)(gong)差(cha) 未注公(gong)(gong)差(cha)的線性(xing)和(he)角度尺寸的公(gong)(gong)差(cha)》中(zhong)(zhong)的m級(ji)。另外，后兩種法(fa)(fa)(fa)蘭的端面應與(yu)其軸線垂直，偏(pian)差(cha)不大(da)于30'。

3. 船(chuan)(chuan)用(yong)銅(tong)合(he)金整體(ti)鑄造(zao)法(fa)蘭、船(chuan)(chuan)用(yong)銅(tong)合(he)金帶(dai)頸平焊(han)法(fa)蘭、船(chuan)(chuan)用(yong)銅(tong)合(he)金平焊(han)環松套鋼法(fa)蘭、船(chuan)(chuan)用(yong)銅(tong)管折邊和銅(tong)合(he)金對焊(han)環松套鋼法(fa)蘭的厚度極限偏差見(jian)表9-52和表9-53。

4. 所有(you)型(xing)式的(de)銅(tong)合金法蘭(lan)連(lian)接密封面(mian)均應(ying)進行機(ji)加工，機(ji)加工表面(mian)粗糙度見表9-54。