熔接痕性能评价的WSt模型及其验证
提出采用熔体汇合角度、流动前沿温度、压力三个参数来表征熔接痕,构建了评价熔接痕性能优劣的WSt模型,基于此模型对比了相同工艺参数下快速变模温成型（Rapid Heat Cycle Molding,RHCM）与普通成型的熔接痕质量,并以导风板为对象进行了生产验证.结果表明：快速变模温成型熔接痕的整体性能由普通成型的0.681提高到0.819,提高了20.3％;RHCM成型导风板熔接痕处的拉伸强度由普通成型的45.3MPa提高到53.8 MPa,强度提高了18.8％,与WSt模型所预测的20.3％接近....
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| Published in | 材料工程 Vol. 43; no. 9; pp. 46 - 52 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
浙江工业职业技术学院,浙江绍兴312000
2015
西北工业大学机电学院,西安710072%浙江工业职业技术学院,浙江绍兴,312000 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-4381 1001-4381 |
| DOI | 10.11868/j.issn.1001-4381.2015.09.008 |
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| Summary: | 提出采用熔体汇合角度、流动前沿温度、压力三个参数来表征熔接痕,构建了评价熔接痕性能优劣的WSt模型,基于此模型对比了相同工艺参数下快速变模温成型（Rapid Heat Cycle Molding,RHCM）与普通成型的熔接痕质量,并以导风板为对象进行了生产验证.结果表明：快速变模温成型熔接痕的整体性能由普通成型的0.681提高到0.819,提高了20.3％;RHCM成型导风板熔接痕处的拉伸强度由普通成型的45.3MPa提高到53.8 MPa,强度提高了18.8％,与WSt模型所预测的20.3％接近. |
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| Bibliography: | melt converging angle ; flow front temperature ; pressure ; WSt model ; RHCM 11-1800/TB The parameters of melt converging angle, flow front temperature, pressure were proposed to characterize the performance of weld line and the WSt model was established to judge the quality of weld line. Based on this, the quality of weld line was contrasted between ordinary molding and rapid heat cycle molding（RHCM） under the same processing parameters. The wind deflector was produced to verification. The results indicate that the weld line performance increases from 0. 681 to 0. 819, with an increase of 20.3 %. And through the tensile experiment of the wind deflector, it can be found that the tensile strength of wind deflector increases from 45.3MPa to 53.8MPa. The strength increases by 18.8%, which is close to 20.3%, as predicted by WSt model. WU Xiong-xi , LIU Jian （1 Zhejiang Industry Polytechnic College,Shaoxing 312000, Zhejiang,China; 2 School of Mechanical Engineering, Northwestern Polytechnical University, Xi＇ an 71007 |
| ISSN: | 1001-4381 1001-4381 |
| DOI: | 10.11868/j.issn.1001-4381.2015.09.008 |