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Although the use of stone, wood, pottery and… has been one of the most important elements in the manufacture of tools and equipment for centuries, but after getting acquainted with the properties and capabilities of various metals, their use in various industries such as home appliances became popular.
The most important properties of metal that distinguish it from other materials are strength, color and polish, malleability, permeability, wire, melting and reuse, impact resistance, pressure and atmospheric destructive factors such as temperature High, cold and humidity.
It is important to understand the role of metals in household appliances , classification of all types of metals and household appliances .
The types of metals can be classified into two broad , non - ferrous and non - ferrous categories . Iron and its alloys, such as cast iron and steels, are ferrous metals that make up about 90% of the products and components of machinery.
Of course, in industry, pure iron is not used because it is very soft and more cast iron and steel are used The types of steel are prepared by the combination of pure iron with carbon , nickel , chromium , and cobalt And cast iron is made from a combination of iron, carbon and silicon. In this context , the use of steel sheets in household appliances industry has an important role . Non-ferrous metals, on the other hand, contain all metals except iron and its compounds . Copper , zinc , bronze , brass , lead , nickel and tin are among these metals used in industries .
Also, all kinds of home appliances can be divided into audio-visual equipment, washing and cleaning equipment, cooling and heating equipment, cooking utensils, beverage-making equipment, food-producing equipment, refrigerators and other kitchen utensils.
devices that cannot be produced without the use of a variety of metals , such as iron , non - ferrous or colorful .
One of the applications of metals in household appliances is stainless steel or stainless steel . Stainless steel is one of the most important types of steel alloy . Steels with special alloys that have high resistance to corrosion are called stainless steels, which are widely used in various industries. Although the most common application of stainless steel or steel is in household appliances , the range of this application extends to the railway rails as well . Since there are more than 150 types of stainless steel with different properties, it is important to understand their differences when buying home appliances. If you are planning to buy cooking utensils, especially for salty foods, you should know the difference between different grades of stainless steel and its types. 200 series stainless steel has lower quality and corrosion resistance than other steels, but due to its reasonable price, the use of steel in commercial kitchens is still evident and it is also used for food storage. Steel 304 is the most common type of stainless steel used in the kitchen and due to the high level of chromium and nickel, it has a lot of shine and is resistant to corrosion and rust. Steel 316 also has a high resistance to corrosion and its applications include home appliances, kitchen equipment, high quality cookware, outdoor equipment and furniture.
However, stainless steel 430, which contains very little nickel, is not as resistant to corrosion as 300 series steels and is a type of magnetic steel that is mostly used in medium quality flatware, ready tables, doors. It is a home appliance and utensil, but stainless steel 440 is one of the strongest steels used in the kitchen, and its products are resistant to corrosion, abrasion and tearing. It is used in the field of high quality cooking knives, cutlery and oven door handles.
In addition, stainless steel 0/13 series is used in the field of making knives, 0/18 series is used in the field of dishwashers, conveyors and trash cans, and 18/8 series is used for all kinds of bed equipment and decoration or design.
Aluminium , which is the most applied metal after iron , is the third most abundant element in the Earth 's crust after oxygen and silicon . It has high energy recycling and storage capacity . These properties have led to the highest consumption growth of all metals in the last 30 years, and this trend is expected to continue in the next 30 years. Aluminium is one of the most widely used metals in household appliances . In the last two decades, the use of aluminum alloys in the manufacture of durable consumer goods such as refrigerators, washing machines, dishwashers and other home appliances has almost doubled, making the home appliance industry one of the most widely used fields for Converted aluminum alloys.
The TV on the market today is basically assembled from aluminum alloy . Not only the frame of television , decorative parts and the front shell , but its base , is also being transferred to an aluminium alloy And the materials related to the production of television are transferred from plastic changes to aluminum .
In this regard, the design of various sections of aluminum extrusion profiles used in the home appliance industry is done by the engineering technical department of some domestic companies.
Copper , as one of the iron derivatives , has a wide application in household appliances . Copper metal is made from iron compounds and is based on iron , and has been used for the manufacture of vessels . In ancient times , all household appliances were produced using copper metal because there is no variation in the amount of household appliances and devices . copper dishes are very heavy and are not easily removed due to their durability . While experts believe that the use of copper dishes is also very useful for health , as they are the main base of iron . The vessels of today , however , have many impurities , and are lighter than they have been before . However, the use of copper appliances, as common household utensils, has declined in recent years and is often used for decoration, decor or special occasions. Of course, the use of iron and its derivatives in home appliances is not limited to copper utensils, but old stoves are also made of iron. Wrought iron or mud fence, which is made of iron, is one of the most practical tools used in construction work. This product 's capabilities are significant in the design of the rail rail and gardens of old gardens or decorative decorative products .
Zinc is the fourth most consumed metal in the world, after iron, aluminum and copper, which is also widely used in industrial applications. Although zinc is used as the base metal for galvanizing steel and is a process of protecting the metal against unwanted corrosion, zinc is used in various alloys such as brass, nickel silver and aluminum solder, all of which are due to Features such as strength, toughness and at the same time, flexibility are very important in the home appliance industry. Zinc is used as an alloy and is combined with copper (in the form of brass) and other metals to be used in automobiles, electrical components, household appliances, especially kitchen appliances.
Chromium and nickel are also used in the household appliance industry due to the characteristics and capabilities available in them . Of course, it should be noted that plating and coating is used in the home appliance industry with the aim of creating corrosion resistance and decorative purposes.
The use of nickel and chromium , in industry in general and in household appliances in particular , is prevalent for two reasons :
First , the chromium finish and nickel finish are used to reduce surface corrosion and a hardness increase based on the cost of effectiveness and duration of stability at the industrial level .
Second, the surface that leaves nickel is more traditional and old, reminiscent of brass utensils of the past, and cheaper than chrome.
Ahan Pouya with more than a decade of best-selling experience, adheres to professional and ethical principles in the field of selling and buying at inside and outside the borders of Iran, helping you in the steel industry.
