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- The hypoeutectoid graphitized free cutting steel was proposed. 具有亚共析组织的钢种其石墨化过程一直很难,因此该钢种开发的关键是促进其石墨化过程。
- During the smelting process of sulfur or lead series free cutting steel, atmospheric pollution is severe, and lead is harmful element to human. 摘要常用的硫系、铅系易切削钢,冶炼时空气污染严重,且铅有毒,对人体有害。
- Sn-free cutting steel, Bi-free cutting steel and graphite free cutting steel without harmful element to human and surroundings will be friendly development material. 锡易切削钢、铋易切削钢、石墨易切削钢由于不添加对人和环境有害的元素,是一种非常友好的开发钢种。
- It's made of high quality SPCC first-grade cold cut steel plate. 采用优质spcc一级冷轧钢板制造而成;
- It’s made of high quality SPCC first-grade cold cut steel plate. 柜身采用日本进口一级电解镀锌钢板精制而成,内部承重,抗压强度出众;
- The torn paper is still paper ,the cut steel is still the same steel . 被撕碎的纸仍然是纸,被切断的钢仍然是钢。
- The torn paper is still paper , the cut steel is still the same steel . 被撕碎的纸仍然是纸,被切断的钢仍然是钢。
- The morphology of inclusions and fracture of a tin-bearing free cutting steel were observed by means of SEM and the chemical composition of inclusions determined using EDAX analysis. 用扫描电镜观察了含锡易切削钢的夹杂物和断口的形貌,并按能谱分析了夹杂物的化学成分。
- In this paper, development of these three kinds of free cutting steels for machine structure purpose is described. 概述了锡易切削钢、铋易切削钢、石墨易切削钢这3类机械结构用无铅易切削钢的发展情况。
- Diamond cannot be used, however, to cut steel without ruining the diamond blade. 然而,金刚石不能用于切割钢铁,因为切割钢铁将毁坏金刚石刀片。
- In industry, lasers are used for cutting steel and other metals and for inscribing patterns (such as the letters on computer keyboards). 激光武器已有30多年的发展历史,其关键技术也已取得突破,美国、俄罗斯、法国、以色列等国都成功进行了各种激光打靶试验。
- STUDY ON THE Ca-S FREE CUTTING STEEL 钙-硫易切削钢的研究
- Products shape: Our "sun shine" brand carbon steel fiber have cold draw steel fiber and cutting steel fiber, with shape of flat, wave, bow, hook and etc. 产品形状:本公司“双兴”牌碳钢纤维主要有冷拔钢纤维和剪切钢纤维,其形状有平直形、波浪形、弓形和端钩形等。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- Early in 1914 a small group of entrepreneurs met to discuss an exciting discovery: "a new bronze hard enough to cut steel". 早在1914年,几位企业家相聚一起,讨论一项令人兴奋的发现“一种具有足够硬度的可用以切断钢材的青铜合金”。
- Low Carbon High Sulphur Free Cutting Steel 低碳高硫易切削钢
- sulfur-series free cutting steel powder S系易切削钢粉
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
- resulphurizing series free cutting steel 硫系易切削钢
- Feature:Only the safe section is fire-resistant ,Safe can be adjusted to 3 combinations index, It’s made of high quality SPCC first-grade cold cut steel plate. 特点:保险箱上层部分具有高强度耐火功能;密码锁可调至三个密码,保密性极强;特制柱琐设计,高度保密;