scholarly journals PENGEMBANGAN PROSES PEMBUATAN IMPELLER DENGAN CETAKAN KULIT

2018 ◽  
Vol 8 (3) ◽  
pp. 115-119
Author(s):  
Suharno ◽  
Amin Suhadi
Keyword(s):  
Shell Mold ◽  
Mold Casting

Impeller merupakan komponen pompa air yang cukup vital dan umumnya terbuat dari kuningan yangharganya relatif mahal, maka dilakukan pengembangan dan dibuat dengan material paduan aluminium yanglebih murah. pembuatannya dicor dengan metode cetakan kulit (shell mold casting) Alat peleburanmenggunakan tungku crucible sederhana. Untuk mendapatkan performa dan karakteristik pada materialdengan uji mekanis dan fisik yaitu uji tarik, uji kekerasan, uji impak, uji komposisi material serta strukturmikro. Cetakan cor terbuat dari pasir cor jenis silika (SiO2) dengan ukuran butiran 0.06–0.1 mm, dengancampuran resin fenol dan katalis sebagai pengikat dan pengering resin. Komposisi aluminium paduan dibuattiga variabel, 1% Cu, 3% Cu dan 5% Cu.Kekuatan tarik maksimum 9950 N/mm², kekerasan maksimum 376N/mm², tenaga pukul impak 45 Joule.

scholarly journals Investigation of shell mold casting technique in Ghana using indigenous materials

2021 ◽  
pp. e01052
Author(s):  
J.K. Hatsu ◽  
A.K. Sunnu ◽  
G.K. Ayetor ◽  
G. Takyi
Keyword(s):  
Shell Mold ◽  
Casting Technique ◽  
Mold Casting ◽  
Indigenous Materials

Preliminary Study into Shell Mold Casting of Nominal 60-Nitinol Alloy

1973 ◽  
Author(s):  
William J. Buehler ◽  
Richard E. Jones ◽  
Ernest F. Heintzelman ◽  
Richard H. Lundsten
Keyword(s):  
Shell Mold ◽  
Mold Casting ◽  
Preliminary Study ◽  
Nitinol Alloy

Precipitation of NiHfsi phase in NiAl single crystals containing Hf

1995 ◽  
Vol 53 ◽  
pp. 532-533
Author(s):  
A. Garg ◽  
R. D. Noebe ◽  
R. Darolia
Keyword(s):  
High Temperature ◽  
Single Crystals ◽  
High Temperature Strength ◽  
Bridgman Technique ◽  
Shell Mold ◽  
Third Phase ◽  
Unknown Phase ◽  
Transmission Electron ◽  
Two Phases ◽  
Nial Matrix

Small additions of Hf to NiAl produce a significant increase in the high-temperature strength of single crystals. Hf has a very limited solubility in NiAl and in the presence of Si, results in a high density of G-phase (Ni16Hf6Si7) cuboidal precipitates and some G-platelets in a NiAl matrix. These precipitates have a F.C.C structure and nucleate on {100}NiAl planes with almost perfect coherency and a cube-on-cube orientation-relationship (O.R.). However, G-phase is metastable and after prolonged aging at high temperature dissolves at the expense of a more stable Heusler (β'-Ni2AlHf) phase. In addition to these two phases, a third phase was shown to be present in a NiAl-0.3at. % Hf alloy, but was not previously identified (Fig. 4 of ref. 2 ). In this work, we report the morphology, crystal-structure, O.R., and stability of this unknown phase, which were determined using conventional and analytical transmission electron microscopy (TEM).Single crystals of NiAl containing 0.5at. % Hf were grown by a Bridgman technique. Chemical analysis indicated that these crystals also contained Si, which was not an intentional alloying addition but was picked up from the shell mold during directional solidification.

Fabrication of Al–Si Gasar by mold casting technique

2018 ◽  
Vol 109 (4) ◽  
pp. 332-340
Author(s):  
Olga Komissarchuk ◽  
Hai Hao ◽  
Xing-lu Zhang ◽  
Vladimir Karpov
Keyword(s):  
Casting Technique ◽  
Mold Casting

UNS A02960

Alloy Digest ◽  
1987 ◽  
Vol 36 (12) ◽  
Keyword(s):  
Heat Treatment ◽  
Tensile Properties ◽  
Heat Treating ◽  
Age Hardening ◽  
Casting Alloy ◽  
Passenger Cars ◽  
Temperature Performance ◽  
Mold Casting ◽  
Railway Passenger ◽  
Hardening Heat Treatment

Abstract UNS No. A02060 is an aluminum-mold casting alloy that responds to an age-hardening heat treatment. It is recommended for applications that require a combination of high tensile properties and good machinability. Among its many uses are fuel pump bodies, aircraft fittings and seat frames for railway passenger cars. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on high temperature performance as well as casting, heat treating, machining, and joining. Filing Code: Al-285. Producer or source: Various aluminum companies.

ALUMINUM 296.0

Alloy Digest ◽  
1982 ◽  
Vol 31 (11) ◽  
Keyword(s):  
Heat Treatment ◽  
Shear Strength ◽  
Tensile Properties ◽  
Heat Treating ◽  
Age Hardening ◽  
Casting Alloy ◽  
Permanent Mold ◽  
Temperature Performance ◽  
Mold Casting ◽  
Hardening Heat Treatment

Abstract ALUMINUM 296.0 is an aluminum permanent-mold casting alloy that responds to an age-hardening heat treatment. It is recommended for applications that require a combination of high tensile properties and good machinability. Among its many uses are fuel pump bodies, aircraft fittings and seat frames for railway passengers cars. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on high temperature performance as well as casting, heat treating, machining, and joining. Filing Code: Al-241. Producer or source: Various aluminum companies. See also Alloy Digest Al-261, October 1985.

ALUMINUM 513.0

Alloy Digest ◽  
1986 ◽  
Vol 35 (2) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Thermal Treatment ◽  
Heat Treating ◽  
Casting Alloy ◽  
Permanent Mold ◽  
Food Handling ◽  
Mold Casting ◽  
Plant Equipment ◽  
Strength And Ductility

Abstract ALUMINUM 513.0 is an aluminum-magnesium-zinc permanent-mold casting alloy. It cannot be hardened nor strengthened by any thermal treatment and is characterized by moderate strength and ductility. It is recommended for such applications as chemical-plant equipment, food handling and marine hardware. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on corrosion resistance as well as heat treating, machining, and joining. Filing Code: Al-265. Producer or source: Various aluminum companies.

ALUMINUM A356

Alloy Digest ◽  
1969 ◽  
Vol 18 (11) ◽  
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Casting Alloy ◽  
Permanent Mold ◽  
Aluminum Company ◽  
Mold Casting ◽  
Hardening Heat Treatment

Abstract Aluminum A356 is a sand and permanent mold casting alloy that responds to an age-hardening heat treatment. It is recommended for aircraft and missile components where high strength and corrosion resistance are required. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on heat treating, machining, and joining. Filing Code: Al-192. Producer or source: Aluminum Company of America.

scholarly journals Heat Treatment Evaluation for the Camshafts Production of ADI Low Alloyed with Vanadium

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1036
Author(s):  
Eduardo Colin García ◽  
Alejandro Cruz Ramírez ◽  
Guillermo Reyes Castellanos ◽  
José Federico Chávez Alcalá ◽  
Jaime Téllez Ramírez ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Tensile Strength ◽  
Ductile Iron ◽  
Volume Fraction ◽  
Energy Impact ◽  
Treatment Conditions ◽  
Mold Casting ◽  
Grade 3 ◽  
Good Agreement

Ductile iron camshafts low alloyed with 0.2 and 0.3 wt % vanadium were produced by one of the largest manufacturers of the ductile iron camshafts in México “ARBOMEX S.A de C.V” by a phenolic urethane no-bake sand mold casting method. During functioning, camshafts are subject to bending and torsional stresses, and the lobe surfaces are highly loaded. Thus, high toughness and wear resistance are essential for this component. In this work, two austempering ductile iron heat treatments were evaluated to increase the mechanical properties of tensile strength, hardness, and toughness of the ductile iron camshaft low alloyed with vanadium. The austempering process was held at 265 and 305 °C and austempering times of 30, 60, 90, and 120 min. The volume fraction of high-carbon austenite was determined for the heat treatment conditions by XRD measurements. The ausferritic matrix was determined in 90 min for both austempering temperatures, having a good agreement with the microstructural and hardness evolution as the austempering time increased. The mechanical properties of tensile strength, hardness, and toughness were evaluated from samples obtained from the camshaft and the standard Keel block. The highest mechanical properties were obtained for the austempering heat treatment of 265 °C for 90 min for the ADI containing 0.3 wt % V. The tensile and yield strength were 1200 and 1051 MPa, respectively, while the hardness and the energy impact values were of 47 HRC and 26 J; these values are in the range expected for an ADI grade 3.

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