Cast steel, cast iron, alloy steel can be slowly heated to about 300~500ºC with a quenching nozzle with a small flame to prevent cracking.The quenching temperature of steel parts is Ac3+(80~100ºC), and the quenching temperature of iron castings is 730ºC+28×ωSi ºC -25×ωMnºC. ...
Different types of steel used as plastic molds have different chemical compositions and mechanical properties, so the manufacturing process routes are different; similarly, different types of plastic mold steels use different heat treatment processes. This section mainly introduces the manufacturing ...
It is the "main way of green intensive casting" in the 21st century, and it plays an increasingly important role in casting production. Lost foam casting does have a wide range of adaptability, but not all castings are suitable for lost foam casting. ...
Since the casting cools and solidifies faster in the metal mold than in the sand mold, and the metal mold has no tolerance, when the metal mold is cast, the casting stress generated in the casting is larger than that in the sand casting. Defects such as insufficient pouring, cold barrier, white mout ...
Carbon steel, also called carbon steel, is an iron-carbon alloy with a carbon content of ωc less than 2%. Carbon steel generally contains a small amount of silicon, manganese, sulfur, and phosphorus in addition to carbon. ...
Various defects that endanger the quality of billets. The defects of steel billets can be divided into two categories according to their sources: defects caused by steelmaking and ingot casting and defects caused by steel rolling. From the location of the defect, it can be divided into two types: su ...
At present, China, the United States, Japan, Germany, South Korea, and Italy are the six major mold manufacturing countries whose mold output value occupies an absolute position in the world. China's mold output value is the highest in the world. ...
In order to ensure the quality of castings, the caster must consider reducing the cost. Next, InterContinental Editor will help the caster to split the lost foam process cost to see how the lost foam process reduces the cost. . ...
Preventing shrinkage defects is often a very difficult problem in process design. In this regard, the experience summarized from actual production is very inconsistent, and each has its own opinions: some people think that the principle of sequential solidification should be followed, and a large ri ...
This is the biggest misunderstanding in people's minds! It can be said that if you go to any hardware seller, the boss will tell you so. If you believe it, then you are actually wrong. What magnets can attract is not necessarily stainless steel. ...
The world's first magnesium alloy lightweight electric bus, which was just unveiled on September 29, 2016, successfully replaced aluminum alloy and steel materials with 226Kg magnesium alloy after overcoming the above-mentioned problems, which was a breakthrough in the world's automobile industry. T ...
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The thread cutting process depends on the structure of the machined parts and the CNC machine tool u
Oval gears are widely used in automatic machinery and instrument industries, and are a type of non-c
The cylinder telescopic sheath is a protective component that is installed on the oil cylinder, cyli
The manufacturing cycle is long. Operators are prone to fatigue. Once a failure occurs, it often tak
The Wu Steel Works has two workshops, one steelmaking workshop and the second steelmaking workshop.