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1)  head [英][hed]  [美][hɛd]
封头
1.
Influences of different samples on the examination results of tensile strength of polymerizer head;
不同试样对聚合釜封头拉伸性能检测结果的影响
2.
Study on thickness calculation for hem pyramidal heads;
折边锥形封头厚度计算探讨
3.
Finite Element Analysis of the Stress of the Offset Nozzles on the Head of a Liquid Tank;
溶液罐封头偏置接管应力有限元分析
2)  dome [英][dəʊm]  [美][dom]
封头
1.
Buckling analysis on rear dome of solid rocket motor case;
固体火箭发动机壳体后封头屈曲分析(英文)
2.
Development on Dome Reinforcement of Composite Case;
复合材料壳体封头补强技术研究
3.
In addition, special care should be taken to the dome insulation, and the replacement with high grade material.
通过外观、着色、金相、断口、腐蚀产物及腐蚀介质综合分析 ,分析出汽提塔上封头开裂是不锈钢在湿H2 S环境下的硫化物应力腐蚀开裂 (SSC)。
3)  head plate
封头
1.
Study on a new style head plate equipment;
一种新型封头设备的研究
2.
Qualification licence and forcible supervision inspection regulations were enforced by the law and code of China for the first time on head plate manufacture of special equipments such as pressure vessels etc.
中国法规首次对压力容器等特种设备用封头实施制造资格许可和强制的监督检验制度。
3.
Formed heads for steel pressure vessels is the first complete and unite standard about head plate.
本标准是我国压力容器第一部完整和统一的封头标准。
4)  header [英]['hedə(r)]  [美]['hɛdɚ]
封头
1.
By taking a practical header as an example, the Influences of pipe load components on header strength are analyze.
分析了板翅式换热器封头接管外载荷产生的原因和进行许用接管载荷计算的必要性。
2.
The performance of heat transfer parameters in fin-plate heat exchangers under different header configurations was experimentally studied.
研究了不同封头结构对换热器换热性能参数的影响情况,计算了雷诺数及封头结构不同时换热器的传热系数K、摩擦因数f和火用效率ηe,结果表明,采用孔板型封头可提高传热系数,改善换热效果,进、出口阻力的增加幅度在工业允许范围内。
3.
After the calculation of allowable pipe load,the elasticity element is analyzed,then the stress analyse and design method is adopted,the design crirteria in Dibision 2,Ⅷ of ASME boiler and pressure vessel code are used to evaluate the maximum stress point when the header is under the maximum allowable design load.
对承受内压和接管载荷的板翅式换热器封头结构,运用有限元分析软件ANSYS对其进行了极限分析,计算出许用接管载荷后再对其作弹性有限元分析。
5)  vessel head
封头
1.
Reliability analysis of the connecting zone of cylinder and vessel head of high pressure vessels;
高压容器筒体与封头连接区可靠性分析
2.
The manufacture was required considerable technology, especial the vessel heads.
镍基特种合金耐蚀性好 ,在化工容器中得到广泛应用 ,但其制造技术要求高 ,尤其是封头的加工成形有难度。
3.
On the basis of the elasto-plastic finite element method, ANSYS software is applied in order to simulate spinning deformation of the vessel head with large size and thin wall thickness.
本文应用ANSYS软件对薄壁大尺寸封头冷旋压成形过程进行了弹塑性有限元数值模拟。
6)  Head joints
封头接头
补充资料:半球形封头
分子式:
CAS号:

性质:壳体轴向截面为半圆形。直径较小的半球形封头可整体压制成型,但直径较大的由于其深度较大,整体压制有困难,故需采用数块大小相同的梯形球瓣和顶部中心的一块圆形球面板(球冠)组焊而成,其结构见图。半球形封头与其他形式封头相比较,在直径和承压相同的条件下,所需厚度最小,封头容积相同时其表面积最小,用料最省。受力很均匀。但由于制造困难,一般除用于压力较高、直径较大的压力容器外,其他容器较少采用。

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