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Thoriated electrodes are suitable for use in DCEN welding of aluminum. Direct current with a positively charged electrode (DCEP) is used primarily for shallow welds, especially those with a joint thickness of less than 1.6 mm (0.063 in). A thoriated tungsten electrode is commonly used, along with pure argon shielding gas. [35]
Ador Welding Limited (formerly known as Advani–Oerlikon Limited) is an industrial manufacturing company headquartered in Mumbai, India.The flagship company of the Ador Group, Ador Welding produces a variety of welding products, industry applications, and technology services, including welding consumables (electrodes, wires, and fluxes) as well as welding and cutting equipment.
This allows for a high power density on the surface to be welded. Values of power density in the crossover (focus) of the beam can be as high as 10 4 –10 6 W/mm 2. Penetration depths can be on the order of hundredths of a millimeter. This provides a high volumetric power density, which can reach values of the order 10 5 –10 7 W/mm 3.
The Colombo Stock Exchange Sector indices are a set of sector based price indices in the Colombo Stock Exchange. The Colombo Stock Exchange (CSE) is the main stock exchange in Sri Lanka. In addition to the CSE Sector indices the Colombo Stock Exchange has two main price indices: the All Share Price Index (ASPI), and the S&P Sri Lanka 20 (S&P SL20).
Consumable electrode processes such as shielded metal arc welding and gas metal arc welding generally use direct current, but the electrode can be charged either positively or negatively. In welding, the positively charged anode will have a greater heat concentration, and as a result, changing the polarity of the electrode affects weld properties.
The CSE has 290 listed companies representing 20 business sectors as of 30 June 2019, with a market capitalization of රු.2,523.38 billion. There are currently two indices in the CSE: The All Share Price Index (ASPI) The S&P Sri Lanka 20 Index (S&P SL20) The Milanka Price Index (MPI) was abolished after 30 December 2012.
Ceylon Petroleum Corporation, commonly known as CEYPETCO (CPC), is a Sri Lankan oil and gas company. Established in 1962 and wholly owned by the Government of Sri Lanka, it is the largest oil company in Sri Lanka. It was formed in 1961 by nationalisation and expropriation of all private oil companies in Sri Lanka at the time of its formation. [4]
This mineral group has the general chemical formula of (REE) 2 (CO 3) 3 ·8(H 2 O). Lanthanites include La, Ce, and Nd as major elements and often contain subordinate amounts of other REEs including praseodymium (Pr), samarium (Sm), europium (Eu) and dysprosium (Dy). [ 7 ]
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