When the austempering time is given, the effect order of them on the hardness and the impact toughness is heating-up temperature, holding time and iso-quenching temperature. 等温时间一定时,各工艺参数对硬度和冲击韧度的影响程度按自大到小的顺序依次为淬火加热温度、保温时间、等温温度。
Because the liquid nitriding the liquid and the work piece direct conduction heating, reduced the work piece heating-up time, raised the azotize speed. 液体氮化由于液体与工件直接传导加热,缩短了工件加热时间,提高了渗氮速度。
It is very easy to operate and offers one settable heating-up ramp and one holding time. 它易于操作,并提供一条可设置的加热曲线和一段保温时间。
The utility model has the characteristic of uniform steaming time, saves heating-up time and has remarkable energy saving effect. 具有统一煮熟的特点,节约加热时间,节能效果明显。
The result of experiment showed that all these factors, especially the potassium permanganate consumption, heating-up time and temperature of waterbath have influence on permanganate index determination. 结果发现这些反应条件对测定高锰酸钾指数都有影响,其中高锰酸钾消耗量、加热时间、水浴温度的影响较大。
If the refractory wall is covered with high reflectivity coating, the heating-up time with workpieces is reduced obviously, whereas the heating-up time at empty cannot be reduced; 炉壁内表涂以高反射率涂料后,可明显缩短工件随炉升温时间,但不能减少空炉升温时间;
The determination of permanganate index was researched in consideration of influencing factors as follows: consumption and concentration of potassium permanganate, heating-up time, temperature of waterbath, acidity of solution and speed of titration. 从高锰酸钾消耗量、高锰酸钾浓度、加热时间、水浴温度、溶液酸度和滴定速度等方面对测定高锰酸钾指数的影响因素进行试验研究。
Tested the volatilization of boron through the acid-alkali neutralization titration, analyzed the influencing factor of boron volatilization, the conclusion showed that the moisture content and heating-up time were important factor; 通过酸碱中和滴定法测定了硼挥发量,分析了影响硼挥发的因数,结果表明含水量和升温速率是影响硼挥发的重要因数;