(i)有机和无机基础化学品的制造 (ii)肥料和氮化合物的制造 (iii)初级形状的塑料的制造 (iv)水泥的制造 (v)基本钢铁和铁合金的制造 (vi)钢管、管子、空心型材及相关配件的制造 (vii)钢铁初加工其他产品的制造 (viii)铝生产 (ix)飞机及相关机械的制造 (x)航空运输、机场和与航空运输相关的服务活动
ToughShield™ Plus 是 Parker 针对全球所有钢管配件和适配器新开发的内部锌镍表面处理技术。凭借这一新开发成果,Parker 将锌镍涂层技术推向了市场的新高度。该涂层具有卓越的耐腐蚀性,可提高防腐性能,同时保持最佳性能和装配值。ToughShield™ Plus 是流体动力系统首个商用标准涂层系统,可提供长达 3,000 小时的抗红色腐蚀性能。
Spraymec 8100 VC SD 是一款移动式混凝土喷涂机,适用于中型至大型隧道施工项目。其久经考验的带喷枪的喷涂操纵器操作简单,工作范围广。可选的 SmartSpray 系统可帮助操作员进行喷涂,简化喷嘴引导,减少反弹,提高效率,最终提高喷涂质量。可靠且容量大的车载压缩机可实现高质量的喷射混凝土喷涂,而带有大直径钢管和软管的输送和喷嘴系统可最大限度地降低堵塞风险。
第 1 节。一般····················································································································· 3 第 2-1 节。轧制钢 ············································································································ 7 第 2-2 节。轧制钢半成品 ························································································ 15 第 2-3 节。用于高热输入焊接的轧制钢 ··········································· 17 第 2-4 节。YP47钢板········································································································· 19 第2-5节。具有改进的疲劳性能的船体结构钢 ····························· 21 第 3 节。钢管 ··································································································· 24 第 4 节。铸件和钢锻件·· ... ·· ...铜和铜合金管 ·············································································· 35 第 8 节。特殊铸铁阀门 ·· ... ·· ...船用链条附件····························································································· 44 第 10-3 节。海上链条和链条附件·································································· 46 第 11 节。钢丝绳· ... ·· ... ·························································································· 60
这些指标应提供停用、更换或升级无阴极保护钢管和铸铁/熟铁管的剩余年数,与适用的州公用事业委员会授权一致。DEO 有一个活跃的管道更换计划,该计划由俄亥俄州公共事业委员会定期重新授权,在此期间,可以根据需要对计划完成时间表提出时间调整。虽然整个计划目前尚未得到俄亥俄州公共事业委员会的批准,但 DEO 目前的更换率目标是到 2040 年完成无保护钢和铸铁项目。
本研究调查了在用于气态氢输送的钢管中使用氧气作为氢脆气相抑制剂的潜力。文中介绍了在气态氢氧混合物下进行的拉伸试验结果,分析了氧气浓度、总压力和应变速率的影响。此外,还介绍了一种数值模拟模型,该模型基于非局部 Gurson-Tvergaard-Needleman (GTN) 模型,结合氢扩散并结合“氧化层”边界条件。这项正在进行的研究的结果表明,在输送的氢气中添加少量氧气可以提高管道的耐久性。
第 1 节。一般····················································································································· 3 第 2-1 节。轧制钢 ······································································································ 8 第 2-2 节。轧制钢半成品 ········································································ 16 第 2-3 节。用于高热输入焊接的轧制钢 ········································ 18 第 2-4 节。YP47钢板···································································································· 20 第2-5节。具有改进疲劳性能的船体结构钢····································· 22 第2-6节。焊接结构用高强度钢 ························································· 25 第 3 节。钢管 ·· ... ·· ... ·· ...铜和铜合金管··········································································· 44 第 8 节。特殊铸铁阀门·············································································································· 48 第 9 节。锚·· ...船用链条附件····························································································· 53 第 10-3 节。海上链条和链条附件····································································· 55 第 11 节。钢丝绳· ... ·· ...锅炉与压力容器··········································································································· 70
1 2024 年 10 月 8 日 设计/建造服务、CMAR、总承包、施工前服务、施工管理、重型土木和基础设施建设、住宅和商业建筑建设、土方工程、现场公用设施、混凝土、钢材、路缘和排水沟、人行道、骨料铺面、沥青混凝土铺路、钢管和混凝土管道、围栏、供水和下水道、水箱建设、钢水修复、填海、拆除、挡土墙、砖石、隔热、隔音、地板、粗/精加工木工、门、玻璃、石膏板、油漆、屋顶、特殊及其他建筑项目。
第 1 节。一般····················································································································· 3 第 2-1 节。轧制钢材··········································································································· 7 第 2-2 节。轧制钢材半成品··············································································· 15 第 2-3 节。用于高热输入焊接的轧制钢材 ····························· 17 第 3 节。钢管 ································································································ 19 第 4 节。铸件和钢锻件 ·· ...第 5 节。特殊要求的曲轴 ······························································· 23 第 6 节。铝合金 ··································································································································· 26 第 7-1 节。铜合金铸件······························································································· 29 第 7-2 节。铜和铜合金管 ············································································· 30 第 8 节。特殊铸铁阀门 ···················································································································· 34 第 9 节。锚·· ...船用链条附件···································································································· 39 第 10-3 节。海上链条和链条附件································································ 41 第 11 节。钢丝绳· ... ·· ... ···························································································· 55
在与飞行学校所有者和 CFI 的会面中,设计师确认坚固的起落架对于飞机作为教练机的成功至关重要。因此,Skycatcher 部署了一个简单但坚固的主起落架,由高强度锥形钢管锻造而成。它吸收了硬着陆的冲击,同时最大限度地减少了维护要求。内饰也采用了重大创新。滑入 Skycatcher,您会注意到机舱与之前的 Cessna 型号或其他轻型运动飞机明显不同;它明显更宽,并采用了量身定制的创新技术,以提供更舒适、更直观的飞行体验。