火次

研究了加热温度、初火次变形率、退火温度等工艺参数对大尺寸Mo-1板组织和性能的影响。

The effects of heating temperature , reduction for the first time , and annealing temperature on the structure and properties of large size Mo-1 plate were investigated .

结果表明，轧制温度选在1250℃，初火次加工率选为37.5%，加工的Mo-1板综合性能比较好；

The results show that the Mo-1 plate annealed at the temperature of 1 250 ℃ and worked in reduction of 37.5 % for the first time is possessed of the better comprehensive properties .

室温和高温拉伸强度随锻造火次的增加呈现先减少后增加的趋势，塑性则先增加后减小。

At room temperature and high temperature the tensile strength of the forging decreases firstly and then increases while the ductility changes on the contrary .

径向锻造可获得全截面细晶材料，并实现高合金难变形材料由锭到材的一火次锻造。

The gross section fine grain material can be obtained by radial forging . One heat forging from ingot to finished products of high alloy with hard deformation can be realized .

所以，两次镦拔以后，转子锻件锻造的着重点应放在锻件最终形状、尺寸的完成及后续火次锻造时塑性变形的均匀性上。

So , after twice streching and upsetting , forging of the rotor should focus on forging the final shape , size , completion and follow-up fire sub-uniformity of the deformation .

电渣锭在锻锤上锻造开坯时，第一火次宜于钢锭出炉后待其稍稍变凉，采取多面受力的小变形方案。

When electroslag ingot is forged and bloomed on the forging hammer , deformation plan that ingot is forged with small deformation and on several surfaces shall be used after ingot taken from heating furnace becomes cooling slightly at the first heating number .

必须采用现代研究手段，控制变形温度、变形量、变形火次，得到综合上述3种组织优点的某种过渡组织类型，保证Ti1023合金发挥高强、高韧的综合优势。

While on basis of controlling the deforming temperature , deforming degree and deforming time , some type of transitional microstructure , with all virtue of the above microstructure types , may be obtained to ensure the Ti 1023 alloy be of high strength and high toughness .

结果表明，在930～1010℃范围内，单锤变形量δ0为2.0～4.0%时，两火次累积变形量大于60%的锤锻变形工艺，可获得ASTM9～10级的均匀细晶锻件组织。

The results show that a forging process with accumlated deformation > 60 % during two heats in the range of 930 ~ 1010 ℃ by single drop 2.0 ~ 4.0 % can get homogeneous fine grain structure of forgings , which is conformable to ASTM 9 ~ 10 scale .

埠后古火山机构由早白垩世陆相火山岩和次火山岩组成，铅、锌、铜、硫矿与后者有关。

The Buhou Palaeovolcano is made up of volcanics and subvolcanics of Early Cretaceous continental volcanic cycle , leadzine-copper and sulfur ores are related to the subvolcanics .

台湾版苏珊大妈&“小胖子”火了以后第一次接受采访。

Taiwan 's Susan Boyle : 'Little Fatty'speaks for the first time since becoming YouTube hit .

但好消息是即将到来的蛇年是自2007年以来火元素的第一次回归。

But the good news is that the coming Year of the Snake is the first time that fire has come back since 2007 .

火上最后一次喷发时在2006年，大量的糜烂性毒气和岩石碎片顺山而下，致2人死亡。

The mountain last erupted in2006 , when it sent an avalanche of blistering gases and rock fragments racing down the mountain that killed two people .