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Metal Mold Casting Technology and Equipment for Aluminum Alloy Parts
Aluminium alloy casting process and equipment
The process of casting aluminium alloy is mainly divided into sand casting and die casting. The choice of casting process and equipment should be based on the requirements of mechanical properties, surface quality, dimensional accuracy and batch size.......
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Repair Technology of Cast Iron Bearing Seat by Manual Arc Welding
Repair Technology of Cast Iron Bearing Seat by Manual Arc Welding
Manual arc welding is necessary for the repair of cast iron bearing seat. There are two types of cast iron: gray cast iron and ductile cast iron. The two types are different in structure and properties. To ensure the quality of the......
Application Status and Development Trend of Aluminum Alloy Friction Stir Welding
Aluminium alloy friction stir welding is an emerging solid-state welding technology. It combines the advantages of friction stir welding and aluminium alloy welding and has the potential to improve the welding speed, weld quality, and cost. As a new joining technology, aluminium alloy friction sti......
Eddy current inspection
Introduction
Eddy current testing is a form of non-destructive testing used to detect surface and subsurface flaws or irregularities in metallic materials and electrically conductive non-metallic materials. Eddy current testing is used across many industries including aerospace, automotive, milit......
GB 6681-86 General Rules for Sampling of Gas Chemical Products
General Principles of Gas Chemical Products Sampling GB 6681-86 “The General Principles for Gas Chemical Products Sampling” provides criteria for sampling variety of gas chemical products, as well as provisions and modeling diagrams of sampling device. This standard effectively protects the fair ......
surface analysis
Surface Analysis
Surface analysis is the study and analysis of the surface of a material to determine its physical, chemical, and mechanical properties. Its purpose is to measure, understand, and interpret the features of the surface of a material, such as its texture, roughness, hardness, and ad......
Characteristic Causes of Residual Shrinkage Cavity and Its Judgment and Treatment
Introduction
Remaining shrinkage hole is a common defect in castings, caused by a number of possible factors related to the manufacturing process. This paper attempts to thoroughly review the causes and prevention of remaining shrinkage hole defects in investment castings, and to discuss various ......
Welding of Large Stainless Steel Thin Wall Vessels
Welding of Large Stainless Steel Thin-walled Containers
Welding of large stainless steel thin-walled containers requires careful consideration in choice of materials and processes to ensure good weld quality. In this article, we will explain the various welding techniques available and their cons......
Fatigue characteristics and section analysis of plasma nitriding cold work die steel Mod.SKD11
Fatigue Properties and Section Analysis of Mod. SKD11 Nitrogen Ion Implantation Cold Work Mold Steel
Introduction
Nitrogen ion implantation can be used to improve the fatigue properties of cold worked mold steel. In the present study, Mod. SKD11 steel was used to investigate the fatigue properti......
Characteristics of powder metallurgy oil-impregnated bearings
Powder Metallurgy Bearing Characteristics
Powder metallurgy bearings are capable of producing high precision and high strength products with uniform density and less porosity. Combining well-chosen lubricants with the structural characteristics of powder metallurgy bearings, such bearings can han......
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