| 涂料的烧结性及防气孔效果的研究 |
| |
| 引用本文： | 李远才,戴绪绮,王文清,祝建勋.涂料的烧结性及防气孔效果的研究[J].华中科技大学学报(自然科学版),1990(4). |
| |
| 作者姓名： | 李远才 戴绪绮 王文清 祝建勋 |
| |
| 作者单位： | 华中理工大学机械工程二系
(李远才，戴绪绮，王文清)，第一拖拉机制造厂(祝建勋) |
| |
| 摘 要： | 含氮树脂砂易引起低碳钢铸件产生皮下气孔,为防止气孔的产生,本文对几种烧结型防气孔涂料及其效果进行了实验研究,结果表明,好的涂料配方具有理想的烧结性,因而具有屏蔽砂芯(型)气体的好效果.文中根据扫描电镜(SEM)观察和电子探针微区分析(EPMA)结果,提出了烧结型涂料的防气孔机制.
|
| 关 键 词： | 涂料 含氮树脂砂 烧结性 低碳钢 铸件 皮下气孔 |
An Investigation on the Effect of Sintering Character of Foundry Coating on the Prevention of Subsurface Pinhole Defect in Steel Castings |
| |
| Li Yuancai Zhu Jianxun Dai Xuqi Wang W enqing.An Investigation on the Effect of Sintering Character of Foundry Coating on the Prevention of Subsurface Pinhole Defect in Steel Castings[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1990(4). |
| |
| Authors: | Li Yuancai Zhu Jianxun Dai Xuqi Wang W enqing |
| |
| Institution: | Li Yuancai Zhu Jianxun Dai Xuqi Wang W enqing |
| |
| Abstract: | It is generally known that use of nitrogen-containing resin-bonded sand is apt to lead to subsurface pinhole defects in low-carbon steel castings. The composition of sintering coatings and its effect on preventing such defects have been experimentally investigated. The results show that the bauxite coating provides excellent sintering character and is found to be capable of shielding the casting from core gas. The mechanism is also studied by SEM and EPMA. It is concluded that bauxite coating is useful to steel casting production if nitrogen- containing resin-bonded sand is to be used. |
| |
| Keywords: | Coatings Nitrogen-containing resin-bonded sand Sintering char-acter Low-carbon steel Castings Subsurface pinholes |
| 本文献已被 CNKI 等数据库收录！ |
