presentation material of office furniture (ii)
2.1
black metal mainly refers to iron products, its advantages are: resistance to deformation, ultra-high strength, wear resistance, high hardness, low prices, life long. Genus carbon alloy, it points to high carbon steel, low carbon steel, carbon steel; it points pipe, the pipe, angle iron, steel categories. Tube type is mainly used for chairs products; square tube beams for the carriage class; steel is mainly used for tables, baffles, wall plates, ornaments, corbel, metal cabinets, doors.
steel products shortcoming:
1, rust
2, the volume of re-
3, fear of wet
method to solve the above deficiencies have electroplating, painting, black hair and blue treatment.
hardware molding methods more: bending, cutting, drilling, welding, cutting, pressure-shaped. In short, according to design requirements or product requirements for processing.
2.2 nonferrous member
means everything except iron products outside the metal pieces such as: aluminum, copper, zinc and stainless steel. It has a feature not easy to rust, poor strength than ferrous metals, furniture and more used are: aluminum, aluminum bar, stainless steel pipe, stainless steel, copper, zinc plate.
stainless steel parts: Stainless steel parts iron and stainless steel division into two categories: often referred to as "430" for the stainless iron, "304" for the pure stainless steel, it is determined one of their methods: magnet test, "430" can magnet being attracted, and "304" is not. Slightly higher than the proportion of iron pieces of stainless steel products, iron products, higher prices than 4 times, so only high-end products to use.
Copper: Copper and copper alloys copper points. Copper, also known as copper, hardness strength is poor, but good toughness. Copper alloys used in furniture more brass, which is a zinc-based alloy of copper. Copper prices slightly higher "304" stainless steel copper from 30 to 40%, while brass is lower than 20% of the price of copper. Copper alloy hardness, strength than stainless steel copper slightly higher, but easily broken, brittle. Application of copper pieces of furniture mainly handles, embedded screws. In order to prevent the "rust", generally before use copper to be plated, and the brass is not required, fewer large-scale use in furniture products.
zinc products: the use of less pure zinc products, primarily zinc alloy or steel combination. Such as galvanized sheet, electrolytic plates. Furniture used less because of poor zinc product strength. Zinc alloy accessories such as eccentric buckle, structural connection points (members) and the like. Zinc alloy is slightly lower than the proportion of about 6.8 iron, steel and aluminum prices ranged between, the majority of zinc alloy die castings produced in the form of furniture accessories.
titanium, zirconium alloys: the case of such relatively expensive metal, which is used in most of the furniture in the form of electroplating, for high-grade handles, hinges and high-speed connections or exposed among hotel furniture. Its chrome plating cost is higher than the cost of about 40%, but the appearance is similar to high-grade gold and silver products, very good abrasion resistance, will not rust.
2.3 casting metal
furniture hardware products have many uses castings, such as handles, hinges, etc., the current market popular variety of casting production process many ways, such as: casting process, casting process, the casting process. Casting material brass, stainless steel, zinc, tin alloy, aluminum alloy. Casting Features: exquisite, uniquely shaped and so on. The disadvantage is the high cost of a single piece, different casting process costs are different, substantially high to low, casting die-casting, mold cost from high to low is: die-cast molding. Casting Product Disadvantages are: a slight increase in the production cycle, the product should after 2 to 3 steps in order to make qualified parts, and accessories, but also according to different requirements or plating, polishing, drawing, sandblasting, fuel injection and other surface decoration treatment.
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