铸造锡青铜是机械工业中被广泛选用的材料之一,但目前在生产中仍存在着机械性能不能达到要求和铸件发生严重渗漏现象等问题。本文拟就提高锡青铜铸件的质量提出一些意见,希能抛砖引玉,促进锡青铜合金的进一步发展。一、主要成分含量的关系(1)锡——锡青铜的特点之一,是它的凝固范围很宽(甚至超过200℃),使铸件容易疏松;同时它的吸气性强,故而铸件容易产生气孔和热裂现象。 Tin bronze casting is one of the most widely used materials in the machinery industry. However, there are still some problems that the mechanical properties can not meet the requirements and the castings have serious leakage phenomena. This article intends to improve the quality of tin bronze casting put forward some suggestions, hope to start a discussion to promote the further development of tin bronze alloy. First, the relationship between the content of the main ingredients (1) One of the characteristics of tin-tin bronze is that it has a very wide range of coagulation (even over 200 ℃), so easy to loose castings; at the same time its strong breathing, and therefore casting easy Produce stomatal and thermal cracking phenomenon.