shielding gas

This paper designs a new kind of nozzle used for laser welding of zinc-coated steels with metal powder and studies the better modality of shielding gas and the powder beam with schlieren device.

本文设计了一套应用于镀锌板激光填充粉末焊接的喷嘴，并利用纹影仪等手段研究了该喷嘴的最佳保护气流量和最佳粉末束拘束度参数；

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Temporary shielding protection reservoirs method can reduce the stress sensitivity damage of tight sandstone gas reservoirs.

采用屏蔽暂堵储层保护工作液技术能够减轻致密砂岩气层的应力敏感性损害。

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This paper studies the effect of zinc and shielding gas type on Laser weldability of zinc-coated steels.

本文研究了锌对镀锌板激光焊接性影响，以及不同保护气体对镀锌板焊接性的影响。

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The effects of process parameters such as laser power, welding speed, wire feed rate, defocusing distance, laser-wire distance, filler wire angle, shielding gas are studied in detail.

研究了工艺参数对焊缝成形质量的影响，如激光功率、焊接速度、送丝速度、离焦量、光丝间距、送丝角度、送丝方式以及保护气体等，并获得了优化的工艺参数。

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Weld spare wheel housing with the fire wall with an interrupted full weld under shielding gas.

用气体保护间断全焊，将备胎罩与防火墙焊接。

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On the technology of CO _ 2 gas-shielding-arc one-side welding with flux cored wire.

药芯焊丝CO_2气体保护单面焊工艺研究.

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Radiation Sources and Shielding Design of Process System for 10MW High Temperature Gas-Cooled Test Reactor

10MW高温气冷实验堆工艺系统的辐射源及屏蔽设计

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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.属类:[产品说明]-[产品安全].

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Development of CO_2 Gas Shielding Flux Core Wire with High Hardness and Research on Wear Resistant Property

高硬度CO2气保护堆焊药芯焊丝的研制及其耐磨性能研究

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The high current, low voltage, reverse polarity, oxidative shielding gas, thick wire are the essential conditions of formation of the buried are, the high current being the most important factor.

大电流、低电压、粗焊丝、反极性和氧化性气氛是形成潜弧过程的必要条件，其中电流是最重要的条件。

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Through the welding technology experiment about rear forcible figuration with ceramic backing, lux-cored wire, and mixed gas shielding, the influences of main normative parameters and technical factors on rear figuration were analyzed.

通过对陶瓷衬垫药芯焊丝混合气体保护背面强制成形的焊接工艺试验，分析了主要规范参数和工艺因素对背面成形的影响。

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The influence of gas on the threshold of plasma shielding depends mainly on the thermal conductivity and dissociation energy of gas, while the influence of ionization energy is the secondary compared to the thermal conductivity and dissociation energy.

辅助气体对等离子体屏蔽临界功率密度的影响主要取决于气体的导热性和解离能，相比而言，气体电离能的影响是次要的。

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The PQR shall include the composition and flow rate of the shielding and inert gas backing, when used.

焊接工艺评定记录单上应包括封底焊时所用的惰性保护气体组成成分和流率。

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Gas reservoir protection and temporary shielding technology in well Bu 1-16

部1-16井保护气层暂堵技术

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