Search results for keyword: shrinkage
The advantages and disadvantages of the new butterfly valve with the valve body and seat as one-piece components
Advantages and Disadvantages of the New Butterfly Valve with Integral Body and Seat
The new butterfly valve with integral body and seat is a kind of valve with a circular disc that rotates inside a pipe to control the flow of fluid. It is commonly used in industrial applications, such as in the c......
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concrete pouring
Concrete casting is a process which involves pouring a mixture of cement, water, and aggregates such as gravel or sand, into a form to make a solid concrete structure or object. The casting is usually done on site, so it must be done carefully and accurately in order to meet the desired dimensions......
Transverse Cracks on the Surface of Steel Ingots and Their Effects
Abstract Steel ingot surface crack refers to a kind of internal damage mode of steel ingot which appears on the surface of steel ingot as a visible crack. It is difficult to predict the width and depth of the crack, so it often has a certain impact when using. Therefore, it is necessary to study th......
Cause Analysis and Preventive Measures of Quenching Cracks in High Speed Steel Cutting Tools
The Analysis and Prevention Measures of High-speed Steel Tool Quench Cracking
1 Introduction
High speed steel tools are tools made of high speed steel material. Its function is to quickly process a variety of objects, materials and parts to achieve their desired shape and structure. It is widely......
Powder aluminum alloy forging
Aluminum alloy forging with powder metallurgy
Powder metallurgy is the process of producing metal parts from powdered materials. It is commonly used in the manufacturing of automotive and aerospace parts. Aluminum alloy forging with powder metallurgy is a specific method that is used to form comp......
Numerical Table of Die Forging Slope for Hammer Upper Die Forgings
Forging Draft Angle Table for Hammer Forge
In forges powered by hammers, the draft angles of forged parts must ensure sound forgings with minimum shrinkage and clean surface finish. As a consequence, a number of components have to be included to ensure accurate forging shapes and tolerances. Desi......
Research on Simulation Technology and Internal Quality Control of Large Forgings
Research on Simulation Technology and Internal Quality Control of Large Forge
Abstract
Forging technology is a kind of processing technology with high efficiency, good reliability and wide application, and large forgings have the characteristics of large size, complex shape, high precision and h......
Defects and Countermeasures of Large Forgings: White Spots
Defects and Countermeasures of Large Forging Parts
Defects of forging parts vary according to the character of materials and process parameters. They often appear in form of folds, piping, core collapse, poor roundness, poor shrinkage, poor consistency and white spots. Large forging parts often c......
Defects and countermeasures of large forgings: quenching cracks and temper brittleness
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Flaws and Countermeasures of Large Forging Parts
Forging is a metalworking process used to create complex shaped parts. The process is suitable for large-scale components, such as engine parts and aircraft structures. When forging parts with complex shapes, there are some common flaws to be awar......
Defects and countermeasures of large forgings: shrinkage cavity and porosity
Defects and Countermeasures of Large Forgings
With the deepening of industrialization, rising labor costs and environmental pollution, large forgings have become an indispensable technology in the machinery manufacturing industry. Big forgings are often used in the manufacture of precision machin......
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