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huangguaha木虫之王 (文坛精英)
我不是我
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[求助]
9.3节~~谢谢
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9.3 Method of Attachment: 9.3.1 Either metallic or nonmetallic fasteners, for example, nut- and bolt-type, can be used to secure the crevice formers to the test panel. greater strength advantage over nonmetallics. Corrosion resistant alloys should be selected for the fastener material. Titanium, Alloy 625 (UNS No. N06625) and Alloy C-276 (UNS No. N10276) have proven corrosion resistance in marine environments and are frequently utilized for crevice-corrosion tests. 9.3.3 When metallic fasteners are used, they should be electrically insulated from the test specimen. 9.3.4 The use of a torque wrench is recommended to help provide consistency in tightening. All crevice assemblies in a given series should be tightened to the same torque, preferably by the same individual in order to minimize variability. 9.3.4.1 A torque of 8.5 N·m (75 in.-lb) on an acetal resin MCA (using a 1⁄4-20 metallic fastener) for example, will routinely result in crevice corrosion for AISI Type 304 (UNS No. 530400) stainless steel in 25°C (77°F) seawater within 30 days.4 |
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hookhans
铁杆木虫 (著名写手)
Farmer
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huangguaha: 金币+100, 翻译EPI+1, ★★★★★最佳答案, 非常感谢~~ 2013-03-14 09:10:16
huangguaha: 金币+100, 翻译EPI+1, ★★★★★最佳答案, 非常感谢~~ 2013-03-14 09:10:16
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9.3 Method of Attachment: 粘贴的办法 9.3.1 Either metallic or nonmetallic fasteners, for example, nut- and bolt-type, can be used to secure the crevice formers to the test panel. （这里没有主谓，估计应该是 metallic fasteners have）greater strength advantage over nonmetallics. Corrosion resistant alloys should be selected for the fastener material. Titanium, Alloy 625 (UNS No. N06625) and Alloy C-276 (UNS No. N10276) have proven corrosion resistance in marine environments and are frequently utilized for crevice-corrosion tests. 9.3.1 金属或非金属的扣件，比如说螺母和螺栓类型的，就能够被用来把裂缝生成物（器）固定在测试板上。金属性的扣件比非金属的强度要好的多。应该选择抗腐蚀性的合金来做扣件材料。钛、合金625 (UNS No. N06625)和 合金 C-276 (UNS No. N10276)已被证明在海洋环境中具有抗腐蚀性，因此经常被用来做裂缝腐蚀测试。 9.3.3 When metallic fasteners are used, they should be electrically insulated from the test specimen. 当使用金属性扣件时，它们（指：金属性扣件）应该和被测的样品电绝缘。 9.3.4 The use of a torque wrench is recommended to help (to) provide consistency in tightening. All crevice assemblies in a given series should be tightened to the same torque, preferably by the same individual in order to minimize variability. 建议使用一个扭矩扳手以便扭紧时保持一致的（松紧度）。按照一定系列安装的所有裂缝都应该扭紧到同样的扭矩，而且为了减少变异性，最好是用同一个（扭矩扳手）。 9.3.4.1 A torque of 8.5 N·m (75 in.-lb) on an acetal resin MCA (using a 1⁄4-20 metallic fastener) for example, will routinely result in crevice corrosion for AISI Type 304 (UNS No. 530400) stainless steel in 25°C (77°F) seawater within 30 days. 例如，在30内25°C (77°F) 的海水中，一个缩醛树脂MCA上（用一个1⁄4-20的金属扣件）的8.5 N·m (75 in.-lb)的扭矩，将通常导致一个AISI 类型的 304 (UNS No. 530400) 不锈钢发生裂缝腐蚀。 |
2楼2013-03-14 00:50:02
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