Hot dip galvanizing air sealed junction box used in a protective airtight door or temporary plugging outside of war by shock wave direction, junction box should be used in protective cover. 热镀锌人防密闭接线盒用在防护密闭门或临时战争封堵外侧受冲击波方向,接线盒应采用防护盖板。
By applying T factor method of hot/ cold noise, at operating temperature 4.2 K, we have obtained the best measured results with Nb-Nb point contact junction: the single side band noise temperature TM-100 K and the Conversion efficiency. 采用冷、热噪声Y因子法,在4.2K的铌结上测得的单边带混频器噪声温度,变频效率。
The practice of production indicates: the qualified cast can be successfully poured by technical measures such as increasing feeding pressure, placing an insert to adjust temperature of the hot junction segments and realizing simultaneous solidification of the casting. 生产实践表明:加大补缩压力,放置内冷铁调节各热节段的温度,使铸件实现同时凝固等工艺措施可成功地浇注出合格的铸件。
Through modification, we improve the cooling capability of the mold, the hot spot can be transferred to the junction of the middle part and the upper part of roller where the shrinkage is easy to occur. 改进工艺后,增大下辊颈砂型的激冷能力,轧辊上的热节转移到了辊身上部和上辊颈中,在此部位产生集中缩孔。
In this paper the improving method for the native thermocouple gauge tubes is given to reduce the thermal inertia of the cold junction to the same degree as the hot junction. 本文提出的改进方法能将国产规管冷端的热惯性降低到与热端接点相当的程度。
From the simulated result it can be seen that the traditional process leads to the hot spot occurring in the junction of the lower part of roller and the middle part of roller, which forms the shrinkage. 由模拟结果可知,在原始工艺条件下,大型轧辊在凝固过程中,在下辊颈和辊身结合部位易产生热节,导致集中缩孔。
The fractography showed that the composite materials prepared by the hot pressing method took place fracture in the interface junction between matrix and particulate reinforced; and under high pressure sintering, SiC and aluminum matrix composites had a strong combination, most SiC cleavage fracture occurred. 断口分析表明,高压烧结的复合材料中SiC与基体结合较好,SiC大都发生解理断裂;热压烧结的复合材料在SiC增强相与基体界面的结合处发生断裂。
However, Re will aid the damage of the device when the value is sufficiently high due to the fact that the highest hot spot shifts from the base-emitter junction to the base region. 然而,Re继续增加直至足够高的数值时将会加剧器件的烧毁过程,这是由于最高温度点由发射区转移到基区所致。
Velocity and temperature fluctuations of the mixing of hot and cold fluids are the essence to induce thermal fatigue of the tee junction. 冷热流体混合过程产生的速度和温度波动是诱发T型管道热疲劳的本质原因。