Casting Defects in Hindi || Part 2 || Defects in Casting || Defects in sand casting

For Blogs, MCQ Practice and Government Jobs Update Visit Our Website www.gearinstitutes.com Free Demo Course of All in 1 AE JE For SSC JE, RRB JE, HPCL, NHPC, ISRO Click Here for free course https://bit.ly/4mKjwiB #sscje #mechanical #gearinstitute Click here to download our app https://edumartin.page.link/jLFr Join telegram channel https://t.me/gearinstitute JE की तयारी के लिए App Download करें https://edumartin.page.link/jLFr Join our whats app channel https://whatsapp.com/channel/0029VaCP... ALL IN 1 AE/JE EXAM LIVE CLASSES (TECHNICAL +NON TECHNICAL) (1 YEAR VALDITY) https://bit.ly/3FOEcme ALL IN 1 AE/JE EXAM LIVE CLASSES (TECHNICAL +NON TECHNICAL) (2 YEAR VALDITY) http://bit.ly/3uPICTG ALL IN 1 AE/JE EXAM LIVE CLASSES (TECHNICAL ONLY) (1Year Validity) http://bit.ly/3ZR9Pne ALL IN 1 AE/JE EXAM LIVE CLASSES (TECHNICAL ONLY) (2Year Validity) https://bit.ly/3O6sndO SSC JE RECORDED COURSE (2YEAR VALIDITY). http://bit.ly/3CSOuzH SSC JE RECORDED COURSE (1YEAR VALDITY) http://bit.ly/3W9LVjv Mechanical MCQ Book written by Er.Harvinder Singh Order your copy click here https://bit.ly/MCQBOOK Strength of material Full Syllabus https://bit.ly/38jyEBX Fluid Mechanics Full Syllabus https://bit.ly/3uNsG3z Theory of machine Full Syllabus https://bit.ly/3xRPQJk Thermodynamics Full Syllabus https://bit.ly/3k7lXws Material Science full syllabus https://bit.ly/38pU5Bf Machine Design Full Syllabus https://bit.ly/3k7lr1u Automobile Engineering Full Syllabus https://bit.ly/3wMMm8S Refrigeration and air conditioning Full Syllabus https://bit.ly/3Q2tHyy Power plant engineering http://bit.ly/3kGoj9v Workshop Technology https://bit.ly/3QGsNIo Industrial Engineering https://bit.ly/3vvyyjq TYPES OF CASTING DEFECTS Gas Porosity: Blowholes, open holes, pinholes. Shrinkage defects: shrinkage cavity. Mold material defects: Cut and washes, swell, drops, metal penetration, rat tail. Pouring metal defects: Cold shut, misrun, slag inclusion. Metallurgical defects: Hot tears, hot spot. Q:-What are the major defects of casting? A:-Mold material casting defects and causes Cuts and washes. Cuts and washes are areas of excess metal. ... Fusion. Fusion occurs when sand grains fuse with molten metal. ... Run out. ... Swells. ... Drops. ... Rat tails, veins and buckles. ... Metal penetration. Q:How casting defects are identified? Foundry personnel have a tendency to identify a defect based on cause like slag defect or sand inclusions. While this is an acceptable method, after the diagnosis is done, the International Atlas of Casting Defects recommends that unknown defects be classified based on appearance rather than cause. Q:What is cold shut defect? A cold shut is a fault in the surface of a piece of metal caused by two streams of molten metal not joining properly when the piece is being cast. Check for defects such as cracks and cold shuts in the castings. Q:How many types of casting defects are there? Different types of casting defects are unwanted occurrence on a casting during the casting process. It may lead to bad shape, weak casting, and poor functionality. Casting defects are broken down into five main categories: gas porosity, shrinkage, mold material, pouring metal, and metallurgical Casting defects.