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椭圆封头
 
椭圆封头

椭圆(yuan)(yuan)封(feng)(feng)头(tou)(tou)(tou)又(you)名为(wei)椭圆(yuan)(yuan)形封(feng)(feng)头(tou)(tou)(tou)、椭圆(yuan)(yuan)封(feng)(feng)头(tou)(tou)(tou)即为(wei)由(you)(you)旋转椭圆(yuan)(yuan)球(qiu)(qiu)(qiu)面和圆(yuan)(yuan)筒形直(zhi)段(duan)两部分组(zu)成(cheng)的封(feng)(feng)头(tou)(tou)(tou)。 其作用就(jiu)是1.管道到头(tou)(tou)(tou)了(le),不准备现延伸(shen)了(le),就(jiu)用封(feng)(feng)头(tou)(tou)(tou)焊到管子(zi)(zi)上(shang)(shang),做(zuo)为(wei)一(yi)个末(mo)端(duan)来(lai)使(shi)用。2.用在压力容(rong)器上(shang)(shang),上(shang)(shang)下各有一(yi)个封(feng)(feng)头(tou)(tou)(tou),中间(jian)是一(yi)个直(zhi)管段(duan),做(zuo)为(wei)压力容(rong)器的罐子(zi)(zi)用。 旋转椭圆(yuan)(yuan)球(qiu)(qiu)(qiu)面母(mu)线的长(zhang)、短轴之(zhi)比为(wei)2.0的椭圆(yuan)(yuan)形封(feng)(feng)头(tou)(tou)(tou),习惯上(shang)(shang)称(cheng)为(wei)标准椭圆(yuan)(yuan)形封(feng)(feng)头(tou)(tou)(tou)。 椭圆(yuan)(yuan)封(feng)(feng)头(tou)(tou)(tou)的力学性能仅次于(yu)半(ban)球(qiu)(qiu)(qiu)封(feng)(feng)头(tou)(tou)(tou),但优(you)于(yu)碟(die)(die)形封(feng)(feng)头(tou)(tou)(tou)。由(you)(you)于(yu)椭圆(yuan)(yuan)封(feng)(feng)头(tou)(tou)(tou)的深度介(jie)于(yu)半(ban)球(qiu)(qiu)(qiu)形和碟(die)(die)形封(feng)(feng)头(tou)(tou)(tou)之(zhi)间(jian),对冲压设(she)备及模(mo)具(ju)的要(yao)求、制造难(nan)度亦(yi)介(jie)于(yu)两者(zhe)之(zhi)间(jian),即比半(ban)球(qiu)(qiu)(qiu)封(feng)(feng)头(tou)(tou)(tou)容(rong)易,比碟(die)(die)形封(feng)(feng)头(tou)(tou)(tou)困难(nan)。近(jin)年来(lai)由(you)(you)于(yu)采用旋压制造工艺(yi),为(wei)制造大直(zhi)径椭圆(yuan)(yuan)形封(feng)(feng)头(tou)(tou)(tou)带(dai)来(lai)了(le)方便。 椭圆(yuan)(yuan)封(feng)(feng)头(tou)(tou)(tou)因综合(he)性能较好(hao),被广(guang)泛(fan)用于(yu)中低压容(rong)器。

 
 
 
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