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- welding grade shield gas 焊接级保护气体
- Shielding Gas Method of CO2Laser-TIG Hybrid Welding[J]. 引用该论文 高明;曾晓雁;胡乾午;严军.
- Uses cerium-tungsten as electrode, argon gas as shield gas to perform the TIG welding, suitable for welding of alloy steel, stainless steel, copper, nickel and its alloy, titanium and its alloy etc. 氩弧焊采用铈钨作为电极、氩气保护，用于焊接各种合金钢、不锈钢、铜、镍及其合金、钛及钛合金等金属。
- Gaseous helium is used as an inert shielding gas in metal arc and laser welding. 在金属电弧和激光焊接中气态氦用作惰性屏蔽气体。
- Available for welding of low-carbon steel and alloy steel;aluminium alloy taking argon as shielding gas. 适用于低碳钢、合金钢的焊接；用氩气作为保护气体时可焊接铝铪金。
- Keywords SVM welding arc sound;LPC model;shield gas flux; 支持向量机;电弧声;LPC模型;保护气体流量;
- Argon serves as a shielding gas to protect metals from oxidation during welding. Inert gas welding is the preferred method of joining several ferrous and nonferrous alloys. 焊接中，氩作为保护气防止金属氧化。惰性气体焊接是连接几种含铁和不含铁的合金的首选方法。
- The graded shield technique was developed to increase the sentinel node detection rate by improving lymphoscintigraphic image contrast. 由于层次遮蔽技术可改善造影对比，增进淋巴结与背景活性对比，因而提高淋巴结的侦测。
- To gain fine mechanical property and bead strength to raise welding efficiency and quality, only applicative welding parameters and shielding gas rate could attach to the target. 摘要就焊接的目的而言，正确的焊接参数组合及适当的遮护气体比例才能使母材获得良好的机械性质及焊道强度，提高焊接效率与品质。
- By enhancing nodal contrast, we have demonstrated that the graded shield technique is an effective method for improving the rate of sentinel node detection. 由于增进侦测淋巴结与背景活性的对比，我们证明了层次遮蔽技术是有助于前哨淋巴造影侦测的一种有效方法。
- The effects of welding speed, defocusing distance, laser power, shielding gas, activating flux and activating elements on weld shape in YAG laser welding of SUS304 stainless steel was studied. 以不锈钢SUS304作为试验对象,分别研究了焊接速度、散焦离焦量、激光功率和保护气体等工艺参数以及活性剂和活性元素硫对不锈钢YAG激光焊焊缝成形的影响。
- A shielding gas is employed and the transfer mode is not "short-arc". 采用保护性气体和非短弧的过渡方式。
- Pupils who pass the test will be promoted to the next higher grade. 小学生只要考试及格就会升到高年级。
- He's not in the first grade as a musician. 他不是第一流的音乐家。
- Business is now on the up grade. 目前生意蒸蒸日上。
- Pupils with 90% or more are awarded Grade A. 满90分的学生评为甲等。
- By performing Static Thermo-mechanical Analyses, we revealed the expansion characteristics of the coal particles in shielding gas atmosphere during the devolatilization. 通过静态热机械分析仪可以了解在有保护气的条件下,煤颗粒在挥发分析出的过程中颗粒的膨胀特性。
- The sixth grade saw an educational film yesterday. 六年级学生昨天看了一部教育片。
- He received a failing grade on the term paper. 他的期末报告不及格。
- Red and yellow grade into orange. 红与黄混合成橘黄。
