Gating and Risering System of S.G. Iron Casting

Topics: Cast iron, Iron, Ductile iron Pages: 36 (6476 words) Published: May 12, 2014


ON
GATING AND RISERING SYSTEM OF S.G. IRON CASTING

SUBMITTED BY:
AMBRISH DUBEY
ROLL NO: 0207
B.TECH, FINAL YEAR
MANUFACTURING ENGINEERING

UNDER THE GUIDANCE OF:-
Dr. NANDITA GUPTA ASSISTANT PROFESSOR
NIFFT RANCHI

NATIONAL INSTITUTE OF FOUNDRY AND FORGE TECHNOLOGY RANCHI-834003

CERTIFICATE This is to certify that the seminar work entitled "Gating and risering system of S.G iron casting" submitted by Mr. AMBRISH DUBEY in partial fulfillment of the requirements for the award of the degree of "Bachelor of Technology" in "Manufacturing Engineering" of Ranchi University is a bonafide work carried out by him, under my supervision and guidance. In my opinion, the work fulfills the requirements for which it is being submitted.

Dr. Nandita Gupta
Assistant Professor
NIFFT,Ranchi-3

ACKNOWLEDGEMENT

We sincerely acknowledge the help and guidance received from Dr. Nandita Gupta without which it would have been difficult to complete this Seminar work. Her constant encouragement and words of motivation have been a source of inspiration for us. We express our sincere gratitude to her. We also want to thank, NIFFT staff members for providing us an opportunity to present this work. Without their support this would have been never possible. RANCHI AMBRISH DUBEY Date- B.TECH STUDENT

CONTENTS

1. INTRODUCTION 2.1 GATING SYSTEM 2.2 DESIGN OF GATING SYSTEM 2.2.1 POURING BASIN

2.2.2 SPRUE
2.2.3 CHOKE AREA
2.2.4 RUNNERS
2.2.5 INGATES
2.3 GATING SYSTEM DESIGN 2.3.1 POURING TIME
2.3.2 CHOKE AREA
2.3.3 GATING RATIOS
3.1 SOLIDIFICATION OF DUCTILE IRON 3.2 CONDITION FOR RISERLESS DESIGN 3.3 DESIGN OF RISERING SYSTEM 3.3.1 RISER DESIGN

3.3.2 NECK DESIGN
3.3.3 RISER LOCATION
3.4 VARIABLE AFFECTING RISER PERFORMANCE 3.5 REFERENCES
INTRODUCTION GATING SYSTEM:-
The term gating system refers to all the passageways through which metal enter into a mould cavity. The gating system serves many purposes, the most important being conveying the liquid material to the mould, but also controlling shrinkage, the speed of the liquid, turbulence, and trapping dross. The gates are usually attached to the thickest part of...
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