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本试验采用一组Fe-Ni-Co合金,分别与772厂、上灯厂的DM-308玻璃进行封接,并将封接件在M334型应力仪上作光程差测量,并换算成应力值。其中№33、32、28、29、5、6等六种封接件的应力值分别为15.42、20.45、0、5.66、4.1、8.5kg/cm~2,均受压应力状态。生产用4J29合金与772厂玻璃的封接件样品所测得的应力值为18kg/cm~2,呈压应力。 应力值大小与多种因素有关。本文着重就合金和玻璃膨胀曲线的不同组合进行讨论。并认为曲线所包含的面积变化与应力值有一定关系。一般是:①上面积大于下面积,应力值大。上、下面积相近,或下面积稍大,应力值小。此时呈压应力状态。②下面积比上面积大得多,呈拉应力状态。③下面积大至某程度为无应力状态。
In this experiment, a group of Fe-Ni-Co alloy was used to seal with DM-308 glass of 772 factory and Shanghang factory, respectively, and the sealing member was measured for optical path difference on M334 stress meter and converted into stress value. Which № 33,32,28,29,5,6 and other six kinds of seals stress values were 15.42,20.45,0,5.66,4.1,8.5 kg / cm ~ 2, are under stress state. Production with 4J29 alloy and 772 glass factory sealed samples measured stress value of 18kg / cm ~ 2, was compressive stress. The magnitude of stress is related to many factors. This article focuses on the different combinations of alloy and glass expansion curves. It is considered that the change of the area covered by the curve has a certain relationship with the stress value. Generally: ① the area is greater than the following area, the stress value. Upper and lower areas are similar, or slightly larger under the area, the stress value is small. At this point was the state of stress. ② under the area of ?? much larger than the area, was tensile state. ③ under the area to a certain degree of stress-free state.