这是埋弧焊，一种常用的焊接方法，它在一小时内熔敷的金属量可以等于操作者本身的重量。
This is the submerged arc welding, a commonly used welding method that can in an hour deposit weld metal equal in weight to that of the operator himself.
降低焊接线能量时，将降低熔敷金属中的氧含量及其氧化夹杂物的数量和大小，从而提高熔敷金属的韧性。
Decreasing welding thermal input will decrease the oxygen content and the number and size of oxide inclusions, and it improves the toughness of weld metal.
分析了堆焊熔敷金属的显微组织，研究了焊接线能量对堆焊层金属显微组织形成的影响。
The microstructure of the deposited metal and the effect of the welding heat input on the formation of the deposited metal are studied.
熔敷金属流动性较308l为佳，在焊接操作上也更优越。
Deposited metal fluidity better than 308l, on weld the operation too more superior.
阐述了色谱法测定焊接熔敷金属中扩散氢的测试原理及基本操作程序。
The principle and operation procedure of the thermal conduction gas chromatography used to measure the diffusion hydrogen in weld metal was expatiated.
研究了交流和直流反接两种型式下焊丝金属熔敷率、焊接接头金属组织以及接头的力学性能。
The deposition efficiency of welding wires metal, microstructure and mechanical properties of welded joints were studied.
熔敷金属能满足较高的焊接质量和耐腐蚀性能。
Deposited metal can meet high welding quality and corrosion resistance.
研制的容器主焊缝埋弧焊材与国外典型的埋弧焊焊材在焊接工艺性能和熔敷金属力学性能及纯净度方面对比，结果表明研制焊材与日本神户制钢所的US-521HD／PF-500D焊材相当。
The weldability, deposited metal's mechanical properties and purity of the new developed shell butt welding SAW material as the same level compared with Kobe Steel US-521HD/PF-500D.
熔敷金属力学性能优良，用于中碳钢和低合金钢重要结构的焊接，如压力容器、桥梁及船舶结构。
The deposited metal has excellent mechanical properties. It is used for welding middle-carbon and low-alloy steel structure, such as pressure containers, bridges, and ship structure.
此焊丝的工艺性能良好，适用于全位置焊接，熔敷金属的力学性能达到SA2 13-T91钢的要求。
It has good technical performance, and is suitable for all position welding. The mechanical characteristics of the welding attached metal meet the requirement of SA213T91 steel.
熔敷金属中的含碳量与焊接材料中的含碳量相比是增加还是减少，取决于焊接材料含碳量的多少和氧化性的强弱。
The increasing or decreasing of carbon in the deposit metal is depends on the carbon content of welding material. The critical value of carbon increasing for FCW is about 0.05%.
本发明实现了补焊前的预热，补焊接头强度大于熔敷金属自身的强度。
The invention realizes preheating before repair welding, and the strength of a repair welding joint is more than that of the deposited metals.
本发明实现了补焊前的预热，补焊接头强度大于熔敷金属自身的强度。
The invention realizes preheating before repair welding, and the strength of a repair welding joint is more than that of the deposited metals.
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