Basic nature of aluminum

Aluminum is silver -white light metal. There is ductility. Commodities are often made of rods, sheets, foils, powder, band -shaped and filaments. A layer of oxide film that prevent metal corrosion can be formed in humid air. The heated aluminum powder treated with acid can be burned violently in the air, and it emits dazzling white flames.

It is easy to dissolve in dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide, and potassium hydroxide solution. It is insoluble in water. However, it can slowly react with hot water to generate aluminum hydroxide, with a relative density of 2.70/cm^3. The melting point is 660 ° C. Boiling point 2327 ℃. It is widely used with its light, good conductivity and thermal conductivity, high reflection and oxidation resistance

Types of aluminum product raw materials

Classification: aluminum profile, aluminum tube, aluminum rod (solid pipe), aluminum row material (solid profile), aluminum wire, aluminum welding strip

Board category: aluminum plate, aluminum foil, aluminum band material (roll)

Casting: aluminum casting, aluminum particles

Various states of aluminum and aluminum alloy

F ×× is: free processing status

O ×× is: annealing state

H ×× is: processing hardened state

W ×× is: solid melting heat treatment status

T ×× is: thermal treatment status (different from F, O, H state)

*H ×× hardening segmentation state:

The first number behind H indicates that the basic processing procedure of this state is shown below.

H1: Simple processing hardening state

H2: The state of processing sclerosis and incomplete annealing

H3: The state of processing hardening and stable treatment

H4: The process of processing sclerosis and paint treatment

The second digit after h: indicates the degree of processing of the product. For example, 0-9 means that the degree of processing hardening is getting harder and harder.

The surface treatment process of aluminum

1. Sand spraying or brushed anode oxidation

2. Electric Paint

3. After polishing, the powder is sprayed with electrostatic electrostatic, and fluorocarbon spray

4. Titanium plating and titanium plating after polishing mirror surface, or electroplating

5, all kinds of pattern wood grain heat transfer

6, polymer PVC film

The subsequent single item has a subdivided surface treatment process process

Use of aluminum

1. Lighting lights, solar reflex films, building outer walls

2. Interior decoration: ceiling, wall surface, etc.

3. Furniture, cabinet

4, elevator, machine assembly line equipment, etc.

5, signs, nameplates, luggage

6. Internal and external decoration of the car 9. Interior decoration: such as photo frames

7, household appliances, communication products, refrigerators, microwave ovens, audio equipment, etc.

8, aerospace and military aspects, such as large aircraft manufacturing, Shenzhou spacecraft series, satellite and other aspects.

9, mechanical part processing, mold manufacturing, chemical/insulation pipeline covering