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Heat Treatment-1
Definition The heat treatment process of steel refers to the specific heating, insulation and cooling process parameters of steel during heat treatment, which are formulated according to the structural transformation law of steel during heating and cooling. Classificati...Read more -
Two Methods of Pressure Testing
1. Hydrostatic Testing Hydrostatic testing is a pressure test method that uses water as the test medium. It is usually used to test the pressure resistance and sealing of equipment such as pipelines, pressure vessels, boilers, storage tanks, pumps, etc. under working pre...Read more -
Residual Stress in Castings
Residual stress in castings is a significant issue that can affect the performance and longevity of metal components. Predicting and managing these stresses is crucial for ensuring the quality and durability of the final product. Prediction of Residual Stress in C...Read more -
The Filling Ability of Molten Metal
The filling ability of molten metal, also known as fluidity, is a crucial factor in the casting process. It refers to the capability of molten metal to fill the mold cavity completely before solidification. Understanding and optimizing this property is essential for prod...Read more -
Straightening of Castings
Straightening of castings, also known as correction or rectification, is a crucial step in the manufacturing process to ensure that cast metal parts meet precise dimensional specifications and structural integrity. Methods of Straightening There are several metho...Read more -
Characteristics of Investment Casting
In metal processing and manufacturing, investment casting has become one of the preferred processes for the production of high-precision and complex structure castings with its unique advantages. This ancient and constantly innovative technology has greatly promoted the ...Read more -
AISI 347 Stainless Steel
Stainless steel is a high alloy steel that can resist corrosion in air or chemically corrosive media. Stainless steel does not need to undergo surface treatment such as color plating, but it can also have the inherent surface properties of stainless steel. From a metallo...Read more -
Penetrant Testing to Detect Internal Defects in Castings
Penetration testing (PT) is also a kind of non-destructive testing. Its basic principle is to use the good permeability and capillary action of colored penetrants or fluorescent penetrants to narrow gaps. After penetration, removal, and imaging treatment, the surface def...Read more -
Detect Internal Defects in Castings by Ultrasonic
Ultrasonic testing can find defects such as shrinkage cavities, shrinkage porosity, porosity, inclusions, and cracks in castings with simple shapes and flat surfaces, and can determine the size and location of defects. Ultrasonic testing refers to a method of injecting u...Read more -
Three Kinds of Sand Casting Process
According the difference of the sand used for making the casting molds, sand casting process could be divided into many different kinds, such as green sand casting, coated sand casting (shell casting), self-hardening sand casting and dry sand casting (lost foam casting a...Read more -
Shell Mold Casting Process
Shell-mold casting process is also known as shell molding process. It is an expendable mold casting process that uses a resin covered sand to form the mold. In shell-mold casting process the mold is made like a shell. The thin or hollow mold is used so that weight of mol...Read more -
Duplex Stainless Steel 2205 Castings
2205 duplex stainless steel is a duplex stainless steel composed of 21% chromium, 2.5% molybdenum and 4.5% nickel-nitrogen alloy. The ferrite and austenite structures each account for approximately 50%. It has high strength, good impact toughness and good overall and loc...Read more
