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gasoline direct injection

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Journal Articles
Alloy Digest (2015) 64 (1): SS-1195.
Published: 01 January 2015
... Sandvik Pressurfect is an austenitic chromium-nickel stainless steel with low carbon content used for high-pressure gasoline direct injection (GDI) fuel system. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and bend strength...
Journal Articles
Alloy Digest (1976) 25 (8): SS-331.
Published: 01 August 1976
... temperature, and quench in oil, air, gas atmosphere or martempering bath at 360-8400F for one to 100 minutes, then air COOL When the entire tool has reached approx- imately 130-200oF, temper immediately. Protection against decarburization and oxidation is obtained by (1) heating in a neutral salt bath, (2...
Journal Articles
Alloy Digest (1994) 43 (6): TS-527.
Published: 01 June 1994
...) are particularly sensitive. Properly dressed, open faced grinding wheels should be restricted and a plentiful supply of coolant should be used. The grinding wheel sup- plier should be consulted for exact wheel selection. Nitriding: Gas, salt and ion processes am all effective procedures for nittiding llymthetm...
Journal Articles
Alloy Digest (2005) 54 (3): Cu-732.
Published: 01 March 2005
... machining on copper alloys compared to steel at the same power settings. Weldability: Feedback from users who have welded the alloy indicate that tungsten inert gas (TIG) welding with argon is preferred for tool and die type welding. Brazing, gas welding, and silver soldering are not recommended and do...
Journal Articles
Alloy Digest (2005) 54 (1): TS-611.
Published: 01 January 2005
... defects if necessary. A V-type bevel without sharp angle is rec- ommended. Pre- and postheating treatment must be achieved to ensure crack free welds. Gas tungsten arc welding (GTAW) is the recommended process to ensure a clean weld without sulfides, porosities, or oxides that could affect the chemical...
Journal Articles
Alloy Digest (2005) 54 (12): SS-947.
Published: 01 December 2005
.... Soak at the austenitizing temperature for 30 min. Quenching in Pressurized Gas or Warm Oil. For pressurized gas, the furnace should have a minimum quench pressure of 4 bars. A quench rate of approximately 222 °C/min (400 °F/min) to below 538 °C (1000 °F) is critical to obtain the desired properties...
Journal Articles
Alloy Digest (2020) 69 (2): SS-1315.
Published: 01 February 2020
... include temperature, concentration, pH, impurities, aeration, velocity, crevices, deposits, metallurgical condition, stress, surface finish and dissimilar metal contact. Environment Acetic acid Humidity Nitric acid Phosphoric acid Salt spray (NaCl) Sea water Soldium hydroxide Sour oil/gas Sulfuric acid...
Journal Articles
Alloy Digest (1989) 38 (3): TS-497.
Published: 01 March 1989
... for 2h carbur- izing time should be RC 60 after 355°F (180°C); RC 59 after 390°F (200°C); RC 55 after 570 F (300°C). For direct quench (not normalized), furnace cool to 1490 F (83O C), oil quench and temper. Nitriding: Use ammonia gas at 977OF (525°C) to obtain a surface hardness of about 650HV. Wear...
Journal Articles
Alloy Digest (1995) 44 (8): SS-606.
Published: 01 August 1995
...; fasteners; multiphase pumps; submarine shaft seals; propellers and shafts on patrol boats; pumps, valves, fans. agitators, centrifuges, fasteners. filters. pipework and vessels in the CPI; bolting on spent fuel contain- ers; flue gas desulphurization equipment; and waste incinera- tion gas fans. Products...
Journal Articles
Alloy Digest (2000) 49 (10): Ni-561.
Published: 01 October 2000
... than out of necessity. Weldability: HR-120 alloy is readily weldable by gas-tungsten arc welding (GTAW), gas-metal arc welding (GMAW), and shielded metal arc welding (SMAW)processes. In general, the welding characteristics of the alloy are similar to those of the austenitic nickel-base alloys. In order...
Journal Articles
Alloy Digest (1977) 26 (11): Ni-251.
Published: 01 November 1977
... crucibles and refractories should be used in the initial melting. Meltdown should be as rapid as possible. Superheating should be avoided to minimize beryllium loss and gas pickup. After the temperature is in the casting range of 23500-2650oF, metals should be held a minimum time before pouring. Oxidation...
Journal Articles
Alloy Digest (2023) 72 (10): CS-262.
Published: 01 October 2023
... is followed by a diffusion stage in which the carbon diffuses inwards. During the diffusion stage, gas injection and the plasma are switched off. Once the surface carbon content is low enough to allow further carburizing, the next boost is initiated. This pattern is repeated until there is enough carbon...