Reduce hot-runner downtime with proper troubleshooting

被引：4

作者：

Rousseau, Bill ^{[1
]}

机构：

[1] Synventive Molding Solutions, Peabody,MA, United States

来源：

Plastics Technology | 2014年 / 60卷 / 09期

关键词：

Maintenance - Temperature measuring instruments - Temperature control - Presses (machine tools) - Probes;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Experts suggest that molders can reduce hot-runner downtime with proper troubleshooting. The first step is to define the problem properly and gather relevant information. Molders need to do some troubleshooting before removing the tool from the press when a problem is identified while the mold is in the press. A molder should first understand how the temperature controller works when troubleshooting a temperature-control problem caused by an electrical issue. All modern hot-runner systems use thermocouples to measure temperature. Thermocouples are very different from RTD probes for which they are mistaken. The resistance of an RTD probe changes with temperature, so a simple way of troubleshooting them is to check their resistance at a known temperature or to see if one has a resistance significantly different than all the others.

引用

页码：46 / 49