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bronze smelting technique in ancient China
bronze Smelting Technique in Ancient China
bronze smelting was one of the great achievements of ancient China. Between the 16th and 11th centuries BC, the art of bronze smelting was perfected. In this process, the ore was heated to a high temperature, resulting in an alloy of copper and tin tha......
1057 
Erin
heat treatment of metals in ancient China
Heat Treatment of Metals in Ancient China
The history of heat treatment of metals in China dates back to the Shang Dynasty (1600-1046 BCE). This early heat treatment was used to soften and harden bronze utensils and weapons such as knives and spearheads, by heating and cooling in a process that i......
A Review of Brazing (Part 1)
Introduction to Brazing
Brazing is a widely used method for joining two pieces of metal together, usually with a filler metal, such as copper, brass, bronze, or aluminum. The brazing process is fairly simple, as it involves heating the pieces of metal with a torch or other heat source and then in......
Chuck
THE HISTORY OF EATING UTENSILS
One of the key elements of any civilization is the tools and utensils used by its people for the purpose of eating and food preparation. Eating utensils are usually the first tools invented by people, as the need for them is universally experienced. Not surprisingly......
Shell casting
Shell molding casting
Shell molding casting is a metal casting process used in the production of metal parts shaped by pouring molten metal into a shell made of sand and binding agents. This method is used to create detailed and precise parts with a high degree of accuracy and repeatability. The......
GB 5771-86 Diesel engine fuel injection pump delivery valve assembly technical requirements
，关于柴油机喷油泵出油阀偶件的技术条件。
Injection pumps are among the greatest advancements in diesel engine fuel delivery systems. The primary purpose of an injection pump is to control the timing and quantity of fuel injected into the engine. Outlet valves play a key role in determining the para......
Spot welding process of commonly used metals (Part 2)
Spot welding technology for common metal
In electrical engineering, spot welding is a welding process used to join metal. It uses two metal studs or electrodes pressed against the two pieces of metal with an electric current passing through it to create a weld. Spot welding is used in the manufac......
low pressure casting
Low-Pressure Casting
Low-pressure casting is a casting process that uses a combination of static and dynamic forces, such as pressure, time, and temperature, to shape solidified metal into desired shapes. The process most often utilized with aluminum, but can be used with other alloys such as mag......
Welding materials
Welding Materials
Welding is a type of fabrication process that joins materials together using heat, pressure, and sometimes even a filler material. It can be used to create everything from complex structures to simple fixings. With so many different types of welding materials available, deciding......
Density of commonly used chemical and steel materials
Material Density (kg/m3)
Aluminum 2700
Steel 7850
Copper 8940
Nickel 8880
Titanium 4700
Tin 7300
Lead 11340
Carbon Steel 7850
Galvanized Steel 7600
bronze 8980
Gold 19320
Brass 8550
Zinc 7100
Uranium 19100
Iron 7870
Ouranium 19100
Inconel 8800
Mild Steel 7860
Stainless Steel 7900
Manganese Steel ......
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