The Science and Technology of Materials in Automotive Engines Part 11 pptx

... shell is broken off by vibration or high- pressure water blasting (f). Next, the gates and runners are cut off, and sand blasting and machining finish the casting. Investment castings often do not ... most of the wax (a) Wax pattern (b) Assembly (c) Shell building (d) Dewaxing (e) Pouring (f) Knock out and finishing 11. 5 Investment (lost wax) casting process. Science and...

Ngày tải lên: 10/08/2014, 12:21

... engine, two-stroke engine Science and technology of materials in automotive engines1 84 Gas carburizing Gas carburizing is carried out in a gaseous atmosphere containing CO and CH 4 . The gas dissociates ... stress, and the applied strain makes steel hard (known as work hardening, see Fig. 8.7). Deformation increases the dislocation density in the Science and...

Ngày tải lên: 10/08/2014, 12:21

... manual if necessary. i The science and technology of materials in automotive engines Science and technology of materials in automotive engines8 2. The multi-cylinder engine has become more widespread. ... that of a petrol engine. The peak cylinder pressure can be in excess of 15 MPa. The HC and CO contents in Science and technology of...

Ngày tải lên: 10/08/2014, 12:21

... is fiber-reinforced. The top ring groove is reinforced with a Niresist ring carrier. Science and technology of materials in automotive engines5 4 and then, the connecting rod transmits the power ... the metal into the die cavity; (c) die parting after solidification; (d) the casting is ejected followed by die closing. (a) (c) (b) (d) Science and technology...

Ngày tải lên: 10/08/2014, 12:21

... a ring installed in the ring groove. The piston with rings is inserted into the cylinder bore. The ring then expands from its initial diameter (d 1 ) and is forced tightly against the cylinder ... the outer surface of the stacked rings. The shaft revolves and moves up and down with the rings. During this motion, the rings are slightly inclined in the cylindri...

Ngày tải lên: 10/08/2014, 12:21

... cutting Shot blasting Parting Pouring Sand recycling Sand mold Molding Electric furnace melting Inoculation Ladle Cam lobe Chiller Science and technology of materials in automotive engines1 24 in the melt ... the value, the more severe the working conditions. 7. Withstand load Science and technology of materials in automotive engines1 34 Figure 6.4 summ...

Ngày tải lên: 10/08/2014, 12:21

... µm Science and technology of materials in automotive engines1 62 In trucks and large industrial engines, individual cylinder heads are often used on each cylinder for better sealing force distribution and ... additives are ground and mixed Molding with press Giving enough strength for the following machining Rough machining to reduce the grinding allowance Firing F...

Ngày tải lên: 10/08/2014, 12:21

... small amount of carbon is added simultaneously. For carburizing and nitriding, the Science and technology of materials in automotive engines2 10 raceway of the big end and the inner raceway of the crankpin. ... bearing for the big end. The needle rollers held in the retainer are inserted into the big end and run on the outer 9.3 Section shape....

Ngày tải lên: 10/08/2014, 12:21

... present. Science and technology of materials in automotive engines2 24 Bearing metals contain soft metals such as tin or lead. These soft metals can deform to the shape of the adjacent part (the crankpin ... number) Vacuum melting ESR Vacuum degassing Melted in the air 9.12 Effect of refining on the life of bearing steel. Science and technology of m...

Ngày tải lên: 10/08/2014, 12:21

... iron Assembling B.1 Camshaft for high rotational speeds. Science and technology of materials in automotive engines2 72 increases with increasing carbon content. The amount of ferrite inversely decreases. Coarse ... table The engine parts explained in this book have various functions, and the function analysis tables used in several chapters examine the function...

Ngày tải lên: 10/08/2014, 12:21