一、简述 某些高温合金钢需测试它的高温持久力学性能。被测材料(称试样)在一定温度下加一定应力,看它能保持多长时间被拉断,这种测试设备称高温持久试验机(以下简称持久机)。每台持久机上有一只电加热炉,炉子上部及下部分别有一组电热丝,给试样加热到一定温度。砝码通过杠杆把应力加在被测试样上。持久机加热炉剖视图如图1所示。 First, a brief description of some high-temperature alloy steel to test its high temperature mechanical properties of the endurance. The test material (called the sample) at a certain temperature plus a certain stress, see how long it can be pulled off, this test equipment called high temperature lasting test machine (hereinafter referred to as the persistence machine). Each persistence machine has an electric heating furnace, the upper and lower furnace respectively, a group of electric wire, to the sample heated to a certain temperature. Weight through the lever to the stress on the test sample. Durable heating furnace cross-sectional view shown in Figure 1.