内浇道长度对流变挤压铸造CuSn10P1合金组织性能的影响

何子龙; 李永坤; 周荣锋; 刘章兴; 刘涛; 熊文韬

doi:10.15980/j.tzzz.2022.07.011

研究·半固态加工 | 浏览量 : 0 下载量: 39 CSCD: 0

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内浇道长度对流变挤压铸造CuSn10P1合金组织性能的影响
Effects of Ingate Length on the Microstructure and Properties of CuSn10P1 Alloy by Squeeze Casting
2022年42卷第7期页码：843-846
纸质出版日期： 2022 ，
DOI： 10.15980/j.tzzz.2022.07.011

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何子龙, 李永坤, 周荣锋, 等. 内浇道长度对流变挤压铸造CuSn10P1合金组织性能的影响[J]. 特种铸造及有色合金, 2022,42(7):843-846.

He Zilong, Li Yongkun, Zhou Rongfeng, et al. Effects of Ingate Length on the Microstructure and Properties of CuSn10P1 Alloy by Squeeze Casting[J]. Special Casting & Nonferrous Alloys, 2022,42(7):843-846.
何子龙, 李永坤, 周荣锋, 等. 内浇道长度对流变挤压铸造CuSn10P1合金组织性能的影响[J]. 特种铸造及有色合金, 2022,42(7):843-846. DOI： 10.15980/j.tzzz.2022.07.011.

He Zilong, Li Yongkun, Zhou Rongfeng, et al. Effects of Ingate Length on the Microstructure and Properties of CuSn10P1 Alloy by Squeeze Casting[J]. Special Casting & Nonferrous Alloys, 2022,42(7):843-846. DOI： 10.15980/j.tzzz.2022.07.011.

摘要

采用熔体约束流动诱导形核装置制备CuSn10P1合金半固态浆料，利用自主设计的模具在液压机上进行半固态流变挤压试验，研究了内浇道长度对半固态流变挤压铸件微观组织和力学性能的影响。结果表明，随着内浇道长度增加，合金组织分布均匀程度先增加后降低，内浇道长度为20 mm时组织均匀性最好；当内浇道长度达30 mm并继续增加时，出现了明显的固、液分离现象。随着内浇道长度增加，抗拉强度和伸长率均先提高后降低，当内浇道长度为20 mm时，铸件的抗拉强度和塑性最佳。

Abstract

The CuSn10 P1 alloy semi-solid slurry was prepared by the melt-constrained flow-induced nucleation device

and the semi-solid rheological extrusion test was carried out on a hydraulic press using a self-designed mold. The influence of the ingate length on the microstructure and mechanical properties of semi-solid rheological extrusions was investigated. The results show that as the length of the sprue increases

the uniformity of the structure is increased at first and then decreased

which presents desirable when the length of the sprue is 20 mm. When the length of the ingate reaches above 30 mm

there is an obvious solid-liquid separation phenomenon. As the length of the ingate increases

the tensile strength and elongation are increased at first and then decreased. When the length of the ingate is 20 mm

the tensile strength and plasticity of the casting are satisfied.