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Common metal materials and processing technology details

Views: 0     Author: Site Editor     Publish Time: 2022-05-02      Origin: Site

Common metal materials and processing technology details

1. Cast iron – fluidity

The reason why cast iron has such a large and wide range of uses is mainly due to its excellent fluidity and its easy casting into a variety of complex forms. Cast iron is actually the name given to a mixture of various elements, including carbon, silicon and iron. The higher the carbon content, the better the flow characteristics in the pouring process. Carbon is present here as graphite and iron carbide.

Material characteristics: excellent fluidity, low cost, good wear resistance, low solidification shrinkage, very brittle, high compression strength, good machinability.

Typical uses: Cast iron has been used for hundreds of years in construction, Bridges, engineering components, home furnishing, and kitchen appliances.

2. Stainless steel -- the revolution without rust

Stainless steel is an alloy of steel mixed with chromium, nickel and other metallic elements. Its non-rusting properties come from the chromium in the alloy, which forms a hard, self-healing chromium oxide film on the surface of the alloy, which is invisible to the naked eye. The ratio of stainless steel to nickel we usually refer to is 18:10.

Stainless steel is divided into four main types: austenite, ferrite, ferrite - austenite (compound), martensite. Stainless steel used in household goods is basically austenite.

Material characteristics: health care, corrosion resistance, fine surface treatment, high rigidity, can be molded through a variety of processing technology, difficult to cold processing.

Typical uses: Austenitic stainless steel is mainly used in household products, industrial pipes and building structures; Martensitic stainless steel is mainly used for making cutting tools and turbine blades; Ferritic stainless steel is corrosion-resistant, mainly used in durable washing machine and boiler parts; Composite stainless steel has better corrosion resistance, so it is often used in aggressive environments.

3. Zinc - 730 pounds over a lifetime

Zinc, silvery and bluish-gray, is the third most widely used non-ferrous metal after aluminum and copper. The average person consumes 331 kilograms of zinc in their lifetime, according to the US Minerals Service. Zinc is also an ideal casting material becausecustom centered cardan wheel shaft - Xinsanming of its low melting point.

Zinc is extremely corrosion-resistant, which allows it to perform another of its most basic functions: as a surface coating material for steel. In addition to these functions, zinc is also an alloy used with copper to make brass. Its corrosion resistance isn't just applied to steel finishes -- it also helps boost our immune system.

Material properties: health care, corrosion resistance, excellent castability, excellent corrosion resistance, high strength, high hardness, cheap raw materials, low melting point, creep resistance, easy to form alloys with other metals, health care, fragile at room temperature, ductility at about 100 degrees Celsius.

Typical uses: Electronic components. Zinc is one of the alloying materials used to form bronze. Zinc also has hygienic and corrosion resistant properties. Zinc is also used in roofing materials, photo engraving plates, mobile phone antennae and shutter mechanisms in cameras.

4. Aluminum (AL) -- current material

Unlike other metals, aluminum does not exist in nature as a direct metal. It is made from bauxite, an ore that contains 50 percent alumina, also known as bauxite. Aluminum in this form in minerals is one of the most abundant metallic elements on earth.

When aluminum first appeared, it wasn't immediately available. Later, a number of new products for its unique functions and characteristics came out, and the high-tech material gradually had a wider market. Although the application history of aluminum is relatively short, the production of aluminum products on the market has far exceeded the combined production of other non-ferrous metal products.

Material properties: flexible and plastic, easy to make alloy, high strength-weight ratio, excellent corrosion resistance, easy to conduct electricity and heat, recyclable.

Typical uses: vehicle skeleton, aircraft parts, kitchen utensils, packaging and furniture. Aluminum has also been used to strengthen large structures, such as the statue of Eros in London's Piccadilly Circus and the top of the Chrysler Building in New York.

5. Magnesium alloy -- ultra-thin aesthetic design

The corrosion resistance of magnesium alloy is 8 times that of carbon steel, 4 times that of aluminum alloy and more than 10 times that of plastic. The corrosion resistance of magnesium alloy is the best among alloys. Commonly used magnesium alloys have non-flammability, especially when used in automobile parts and construction materials, which can avoid instantaneous combustion. Magnesium is the eighth most abundant in the earth's crust. Most of the material is extracted from seawater, so its resources are stable and sufficient.

Material characteristics: lightweight structure, high rigidity and impact resistance, excellent corrosion resistance, good thermal conductivity and electromagnetic shielding, good non-flammability, poor heat resistance, easy recovery.

Typical uses: widely used in aerospace, automotive, electronics, mobile communications, metallurgy and other fields.

6. Copper -- man's companion

Copper plays an important role in modern society: it is widely used in building structures, as a vehicle for transmitting electricity, and for thousands of years it has been used as a material for body decoration by people of many different cultures. The malleable, orange-red metal has evolved with us from its simple beginnings as a decoder to its crucial role in complex modern communications applications. Copper is an excellent conductor of electricity, second only to silver. In terms of the time history of metal materials used by people, copper is second only to gold as the oldest metal used by human beings. This is largely because copper is easy to mine and the industry is relatively easy to separate from.

Material properties: good corrosion resistance, excellent thermal conductivity, electrical conductivity, hard, flexible, ductility, polished, unique effect.

Typical uses: wire, engine coil, printed circuit, roofing material, pipe material, heating material, jewelry, and cooker. It is also one of the main alloying components in bronze.

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