国产免费观看视频9999-国产一级一区二区三区-久久久久人妻精品乱码-免费欧美日韩视频成人劲爆-成人免费A级黄片-日韩无码三级黄片-黄片一级日韩99-一级性爱视频免费看-黄色A级影片一区二区

2022-05-13 Heat Treatment of Ductile Cast Iron

Heat treatment is an ancient skill that man developed in an attempt to improve the performance of materials.

2022-05-07 Materials Used In Castings

Casting is broadly defined as the process of forming a substance into a specific shape using a mold, and metal casting employs a variety of casting materials and metals to create the molded end product and dates back thousands of years.

2022-04-29 Shrinkage in Casting: Causes and Solutions

Metal shrinks as it transforms from liquid to solid (known as solidification shrinkage) and undergoes additional thermal contraction as it cools to room temperature.

2022-04-22 Foundry sector demands suspension of iron ore, pig iron exports

The Indian Foundry Industry (IFA) has demanded temporary but immediate suspension of the export of pig iron and iron ore to protect the foundry sector of the country from the current crisis of volatility in the price of raw materials.

2022-04-15 Forging vs Forming in Metalworking: What’s the Difference?

Forging and forming are two common types of metalworking processes. They both involve the manipulation of metal to achieve a different size and/or shape.

2022-04-08 The 6-Step Process of Shell Mold Casting

Also known simply as shell molding, shell mold casting is a casting process that involves the use of resin-covered sand for the mold.