Exterior Quality of the Billet for Indirect Aluminium Alloy Tube Extrusion 反挤压铝合金管材用铸块的外观质量要求
This thesis introduces the cardinal principal, characteristics, major classfication of indirect extrusion of metal, as well as technique problems, quality problems, chief technical and economic index that should be noticed in the production of indirect extrusion. 介绍了金属反向挤压法的基本原理、特点、主要分类、反向挤压生产中应注意的技术、质量问题和主要经济指标。
The metal flow during indirect extrusion is analyzed, and the influence of billet machining on the quality of aluminium tube is also investigated. 考察和分析了反向挤压时金属的流动特点,以及铸块表面质量、尺寸精度对管材质量的影响。
Among aluminium alloy indirect extrusion producing period, various process condition influence different result to the coarse grain structure. 铝合金反向挤压过程中,不同的挤压工艺条件对粗晶组织将产生不同的影响。
The improvement on indirect extrusion casting technology and their dies are made for aluminum alloy bearing cages, the new dies is designed, and the forming method of press casting+ solid extrusion is put forwards. The structure and operating principle of the new dies are introduced. 对铝合金轴承保持架间接挤压铸造的工艺及模具进行了改进,设计了新的模具,提出了挤压铸造+固态挤压的成形方法,介绍了新模具的结构及工作原理。
Technical features of indirect extrusion 反向挤压的技术特点
The forces of direct and indirect extrusion were calculated with the values measured by pressure gauge, then according to the characters of direct and indirect extrusion, the forces were calculated using Пилринт equation. 依据压力表测量值计算出正向挤压力与反向挤压力的大小,再根据正、反向挤压的特点,利用皮尔林公式计算同等条件下的反向挤压力和正向挤压力。
Determination of Deformation Pressure in Indirect Extrusion of Rectangular Parts by Method of Mathematical Analysis 用数学解析法求盒形零件的反挤压变形力
Comparison between direct and indirect extrusion force of aluminium and aluminium alloy 铝及铝合金正反向挤压力比较
Coarse grain structure of aluminium alloy during indirect extrusion 铝合金反向挤压中的粗晶组织
Indirect extrusion of aluminum and aluminum alloy ( 3) 铝及铝合金反向挤压(3)