论文部分内容阅读
在热处理部门中,油是使用得最多的一种冷却剂,使用温度一般控制在80℃以下(热油淬火除外)。当淬火工作继续进行时,油温往往超过所允许的使用温度范围而影响产品质量,甚至使淬火操作无法继续进行。淬火油的降温方法,有水套降温法(油桶外面加水套)、注水降温法(将水直接注入油中,再从油桶底部放出)以及用油泵将油抽出,使它经过一个冷水桶内的蛇形管,再回到油桶等降温方法。但这些降温方法有许多缺点,如设备复杂,占用作业面积大,或者降温效率不高,有水油混合层等。最近,我们试验成功了一种新的降温法——压缩空气降温法,具有一系列的优点。这方法是利用附图所示的工具,把压缩空气通入油中。这工具的制造简单,完全可以用废料来制造。它的
In heat treatment sector, oil is the most commonly used coolant, the use of temperature is generally controlled below 80 ℃ (except for hot oil quenching). When the quenching work continues, the oil temperature often exceeds the allowable temperature range of use and affect product quality, and even quenching operation can not continue. Quenching oil cooling method, a cooling water jacket method (water jacket outside the water jacket), water cooling method (the water directly into the oil, and then released from the bottom of the drum) and the oil pump out the oil, it through a cold bucket Within the serpentine pipe, and then back to the oil cooler and other cooling methods. However, these cooling methods have many shortcomings, such as complex equipment, occupy large operating area, or cooling efficiency is not high, there are water and oil mixed layer. Recently, we successfully tested a new cooling method - compressed air cooling method, with a series of advantages. The method uses the tool shown in the figure to deliver compressed air into the oil. This tool is simple to manufacture and can be made entirely of scrap. its