| 查看: 408 | 回复: 1 | ||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | ||
huangguaha木虫之王 (文坛精英)
我不是我
|
[求助]
英译汉
|
|
|
3. Ring tensile test 3.1 The sections of pipe measuring about 15 mm in length shall have plane and smoothed ends and shall be at right angle to the pipe axis. To perform this test, the pipe sections are stretched in a tensile testing machine until fracture occurs using two pins with a diameter equal to at least three times the wall thickness of the pipe, see Figure 2.10. In the case of welded pipes, the specimen shall be placed in the tensile testing device in such a way that the welded seam lies at 90° to the direction of the tensile load. The rate of the pins may not exceed 5 mm/s. 4. Drift expanding test 4.1 To perform this test, a tapered drift is forced into the specimen until the outside diameter has increased to the prescribed value C for the product in question, see Figure 2.11. The length of the specimen and the taper angle β of the drift shall be as shown in the following Table. The intrusion rate of the taper may not exceed 50 mm/s. 5. Flanging test 5.1 To perform this test, a sample of pipe with a length L = 1,5 D is worked into a flange in the device shown in Figure 2.12 until the outer diameter C of the flange attains the value prescribed for the product. The radius r shall match that prescribed for the product. |
回复此楼» 猜你喜欢
071000生物学调剂
已经有3人回复
-
085600材料与化工301分求调剂院校
已经有5人回复
-
081700，311，求调剂
已经有15人回复
-
一志愿北京化工085600 310分求调剂
已经有18人回复
-
材料与化工371求调剂
已经有14人回复
-
336材料与化工085600求调剂
已经有7人回复
-
材料334求调剂
已经有18人回复
-
331求调剂
已经有8人回复
-
332求调剂
已经有17人回复
-
一志愿南京航空航天大学 材料与化工329分求调剂
已经有4人回复
reko34
木虫 (正式写手)
- 翻译EPI: 132
- 应助: 117 (高中生)
- 金币: 4794.2
- 散金: 22
- 红花: 12
- 帖子: 780
- 在线: 417.4小时
- 虫号: 3055206
- 注册: 2014-03-15
- 性别: GG
- 专业: 机械测试理论与技术
【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
真强必胜: 金币+3, good 2014-07-10 11:26:24
huangguaha: 金币+166, 翻译EPI+1, ★★★★★最佳答案, 非常感谢~~ 2014-07-11 08:37:34
真强必胜: 金币+3, good 2014-07-10 11:26:24
huangguaha: 金币+166, 翻译EPI+1, ★★★★★最佳答案, 非常感谢~~ 2014-07-11 08:37:34
|
3. 环拉伸试验 3.1 长度约15mm处的管截面应具有平而光滑的末端，应与管轴具有正确的角度。进行该试验，在拉伸测试机上用2个直径等于至少3倍管壁厚的销拉伸管截面直到发生断裂，见图2.10。对于焊接管，试件放置在拉伸测试机时应使焊缝与拉伸载荷方向保持90°。 销的速率不应超过5mm/s。 4. 扩口试验 4.1 进行该试验，将锥形扩孔器强行伸进试件，直到外径增加到产品规定的C值，见图2.11。试件的长度和扩孔器的锥角β如下表所示。锥体的进入速率不应超过50mm/s。 5. 翻边试验 5.1 进行该试验，在图2.12所示的装置将一个长度=1.5D的管样件加工成法兰，直到法兰的外径C达到产品的规定值。 半径r应符合产品规定。 |
2楼2014-07-10 10:12:14
10