Provided that the reasonable welding shrinkage allowance is reserved during the manufacture of steel structure products, the unnecessary machining procedure can be avoided. 钢结构件制造中,预留合理的焊接收缩量,可减少不必要的加工工序。
Shrinkage allowance The relationship between diastolic function and systolic function assessed by left ventricular mid-wall fractional shortening 容许收缩量;收缩留量;收缩容许量;收缩允许量左室壁内缩短分数评价收缩功能及其与舒张功能相关性的研究
Here is the description on main frame box girder, the prime bearing assembly, particularly on the core technological process of manufacture including shrinkage allowance, welding seam check, assemble, and joint. 主框架钢箱梁为主要承重部件,主要介绍其制造过程中控制的关键工艺,包括下料尺寸、预留收缩量,焊缝检验、组装、连接等。
This article describes how to choose the shrinkage, technique pad and machining allowance, etc, for casting housing, in order to keep the size of casting to meet the demands of its machining, and finally get qualified components. 简要介绍了对于箱体类灰铸铁件如何合理地选择收缩率、机械加工余量、工艺补正量等工艺参数,以保证铸件尺寸满足机械加工要求,最终获得合格的零件。
It has thoroughly researched for the appropriately net divided for various steel castings, the deter-mination of criterion parameter for shrinkage cavity and shrinkage porosity and the optimization design for allowance process, and ensured that the calculation results are accurate and reliable. 对不同铸钢件如何恰当地剖分网格、确定缩孔缩松判据参数、优化补贴工艺设计等都进行了深入研究,保证了计算机数值模拟结果的精确、可靠。