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封头产品的英文对照表 >> HEAD
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bottom (head) 底封头
bumped head 冲压封头
cast iron circular dished heads 铸铁圆形碟形封头
circular head 圆形封头
conical head 锥形封头; 锥形头
conical head (without straight flange) 无折边锥形封头
conical head with straight flange 带折边锥形封头
conical head without transition knuckle 无折边锥形封头
convex head 凸形封头
cover flange 封头法兰
cover head 顶封头
dished (torispherical) head 碟形封头
disked closure (end; bottom) 碟形封头
dome head 球面底; 球形封头
drum end 汽包封头
drum head 磁鼓磁头; 汽包封头
ellipse head 椭圆封头
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flanged conical head
折边的锥形封头
flat head 平封头; 平头
flat-plate closure 平板封头
forged head 锻造封头
forming head 成形封头
head and shell opening 封头和壳体开孔
head contour 封头外形
head design 封头设计
head formed by spinning 旋压封头
head into shell 封头接入壳体
head opening 封头开孔
head plate 封头板; 顶板
head pressing 封头冲压
heading machine 镦头机; 压头机; 封头机
hemispherical head 半球形封头
integral cast iron dished head 整体铸铁碟形封头
jacket head 夹套封头
making-up block 封头砌块
noncircular head 非圆形封头 |
normal ellipsoidal head
标准椭圆形封头
opening in flat head 在平板封头上的开孔; 平盖开孔
opening in head 封头开孔
reversed dished head 凹形封头
rope capping metal 缆索封头合金
seamless head 无缝封头
shell sections and heads 筒节和封头
sperically dished head 球状碟形封头
spherical head without folded edge 无折边球形封头
takeshapes of closure 封头的成型
the forming of head 封头的成型
toriconical head 折边的锥形封头; 带折边锥形封头; 有折边的锥形封头
torispherical head 带折边的球形封头
unstayed flat heads and covers 无支撑平封头和盖板
welded on head 焊制封头
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| 封头的相关信息 >> |
关于封头加热的问题
需成型的大型封头和厚度超过14mm的封头要加热的原因:封头尺寸大,板厚厚,变形抗力很大,不易变形。加热可以提高材料的塑性,降低变形抗力。
对冷压、旋压的封头要进行热处理的原因:冷压变形后(旋压也是在冷态下进行的),封头的硬度、强度增大,塑性、韧性降低,出现加工硬化现象。热处理可以消除此现象,提高材料的塑性、韧性,降低硬度。
加热和热处理不是一回事,但加热成型时,成型后的余热有热处理的作用,所以,热压后的封头一般不需要再进行热处理。
压力容器封头标准以及法兰标准
半球形封头、椭圆形封头、碟形封头 |
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