The influences of surface defects,deformation temperature,deformation amount,microstructure and nonmetallic inclusions on the cracking of 45 hot-rolled round steel during upset forging at room temperature were studied.
对45热轧圆钢室温顶锻试验中出现的裂纹进行了研究,分析了表面缺陷、变形温度、变形量、显微组织、夹杂物等对顶锻开裂的影响。
There're many problems in quality of steel # 45 produced by LD-LF-CC in Laigang,such as surface pores and upset cracks.
莱钢采用LD-LF-CC(方坯连铸)生产45#钢铸坯质量存在较多问题,主要是表面气孔数量多、轧材顶锻裂纹等。
Through hydrogen determination online during manufacturing process,analyzing inclusions element in 20CrMnTiH by SEM and EDAX analysis,and observing defects on the surface of casting blanks,mechanism of upset cracks of 20CrMnTiH smelted by converter in Laiwu steel is found.
莱钢炼钢厂通过生产过程在线定氢,用扫描电镜和能谱分析了20CrMnTiH钢夹杂组分;观察了铸坯表面缺陷;掌握了转炉冶炼该钢顶锻裂纹产生的机理;并在生产中采取了有效的控制措施,使其顶锻裂纹得到全面改善。
The surface cracking reasons of wire rod in upset process are analyzed.
对高线厂线材顶锻加工表面开裂问题进行分析。
The possibility of the once formation process of steel tube upsetting was certified by caculation the force of upset.
通过对钢管加厚过程中二次成型与一次成型各自所需顶锻力的计算,证实了在现有工艺条件下实现一次加厚成型的可能性。
Carbon structure steel wires for cold heading
GB/T5953-1986冷顶锻用碳素结构钢丝
Alloy structure steel wires for cold heading
GB/T5954-1986冷顶锻用合金结构钢丝
Analysis and Control on Heading Quality and Low-time Defects of Quality Steel Produced with Converter
转炉优质钢顶锻质量与低倍缺陷分析及控制
The steel roof has been coloured to match the finish of the original wrought iron.
钢屋顶上了色，以便和原先的锻铁外观相搭配。
I don't mind living in a top flat.Going up and down stairs will be good exercise for me.
住顶楼，我不在乎。上上下下爬楼梯对我会是很好的锻炼。
A heavy block of iron or steel with a smooth, flat top on which metals are shaped by hammering.
铁砧顶端平整光滑用来锤锻金属成型的厚重的钢块或铁块
The act or an instance of exercising.
锻炼锻炼的行为或事例
Of or relating to metalworking or craft.
锻冶的金属锻冶的，与金属锻冶有关的
After steel is made, it needs forging, which nowadays is done with a pneumatic hammer.
钢炼出来要锻。现在锻要拿汽锤锻。
The pointed summit of a mountain.
山顶，顶峰山峰的尖顶
Development of Large Single-piece Forgings and Heavy Forging Presses in Aerospace Forging Industry
大型模锻件和模锻液压机与航空锻压技术
horizontal parting
水平分模（平锻机）
forge a sword, a chain, an anchor, etc
锻造剑、 铁链、 锚等.
To form(metal)by a mechanical or hydraulic press.
锻制通过机械或水的压力锻制
But exercising too much is just as bad as not doing enough.
然而锻炼过量和锻炼不足一样糟糕。
Very well, doctor, I'll try to take more exercise.
好吧, 大夫, 那我就尽量多锻炼锻炼吧.
Do exercises and keep your muscles strong.
锻炼锻炼,使你的肌肉强壮起来。
