EN ISO 17632:2008由欧洲标准化委员会 IX-CEN 发布于 2008-05-01。
EN ISO 17632:2008 在中国标准分类中归属于: J33 焊接与切割,在国际标准分类中归属于: 25.160.20 焊接消耗品。
EN ISO 17632:2008 焊接消耗品.非合金和优质颗粒钢气体屏蔽和非气体屏蔽金属电弧焊接用管状芯电极.分类.[被代替:CEN EN 758]的最新版本是哪一版?
最新版本是 EN ISO 17632:2015 。
* 在 EN ISO 17632:2008 发布之后有更新,请注意新发布标准的变化。
This International Standard specifies requirements for classification of tubular cored electrodes with or without a gas shield for metal arc welding of non-alloy and fine grain steels in the as-welded condition or in the postweld heat-treated condition with a minimum yield strength of up to 500 MPa or a minimum tensile strength of up to 570 MPa. One tubular cored electrode can be tested and classified with different shielding gases, if any. This International Standard is a combined specification providing classification utilizing a system based upon the yield strength and the average impact energy of 47 J of all-weld metal, or utilizing a system based upon the tensile strength and the average impact energy of 27 J of all-weld metal. 1) Paragraphs and tables which carry the suffix letter “A” are applicable only to tubular cored electrodes classified to the system based upon the yield strength and the average impact energy of 47 J of allweld metal in accordance with this International Standard. 2) Paragraphs and tables which carry the suffix letter “B” are applicable only to tubular cored electrodes classified to the system based upon the tensile strength and the average impact energy of 27 J of allweld metal in accordance with this International Standard. 3) Paragraphs and tables which have neither the suffix letter “A” nor the suffix letter “B” are applicable to all tubular cored electrodes classified in accordance with this International Standard. It is recognized that the operating characteristics of tubular cored electrodes can be modified by the use of pulsed current, but for the purposes of this International Standard, pulsed current is not permitted for determining the electrode classification.
1926年:美国Alexandre发明CO2气体保护焊原理。1926年:由美国的A.O.Smith公司率先介绍了在电弧焊接用金属电极外使用挤压方式涂上起保护作用的固体药皮(即手工电弧焊焊条)的制作方法。1926年:铬钨钴焊材合金获得了第一份关于药芯焊丝的专利。1926年:美国人M.Hobart和 P.K.Devers获得了使用氦气作为电弧保护气体的专利。...
管状焊丝电弧焊可以应用于大多数黑色金属各种接头的焊接。管状焊丝电弧焊在一些工业先进国家已得到广泛应用。 “管状焊丝”即现在所说的“药芯焊丝”二、熔焊1气焊 气焊:利用可燃气体在氧气中燃烧时所产生的热量,将母材焊接处熔化而实现连接的一种熔焊方法。气焊是用气体火焰为热源的一种焊接方法。应用最多的是以乙炔气作燃料的氧-乙炔火焰。...
药芯气保焊丝一般用CO2气体作保护,属于气渣联合保护形式,焊缝成形好,综合机械性能高。 6.为什么药芯焊丝焊缝表面会出压痕气孔? 答:因药芯焊丝是由薄钢带卷成的管状焊丝,属于有缝焊丝;空气中的水分会通过缝隙侵入药芯,焊药潮湿(无法烘干),造成焊缝有压痕气孔。7.为什么对CO2气体纯度有技术要求?...
等离子切割(plasma arc cutting)机的工作原理是用较高的空载电压,把空气电离后,通过喷嘴小孔把钨电极和工件之间的电弧压缩,产生特高高温把金属熔化蒸发,然后用压缩空气将熔化后的金属吹离金属母体,形成金属割缝。...
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