Doors and Window Aluminum Shell Low-pressure Casting Technology and Aluminum Alloy Welding Items-WJW Aluminum Supplier Aluminum
Author： WJW Aluminum Window Manufacturers
The chiefs of aluminum and silicon alloy are not developed, and the temperature interval of the knot product is small among the aluminum materials of the casting industry. In a period of time after the solidification process began It has high strength, so its casting function is better in the casting industry aluminum, but it is easy to produce concentrated shrinkage. Not only is it easy to oxidize in the melting process, but in the pouring process, the bias of the secondary oxidation is also very large, which is easy to form oxidation slag. In addition Point scenes of castings.
Gravity pouring process, quality T problem, doors and windows and aluminum materials.
The box casting is a model of shell -like aluminum and silicon alloy casting. The structure is relatively complicated and the thickness is large. It only puts a lot of cold iron when the gravity pouring process is adopted. Frequent disadvantages such as oxide slag, pores, shrinkage and other disadvantages on castings.
Drawing of low -pressure casting process.
In response to the quality of gravity pouring, in order to produce a pastel casting, after analysis of specific techniques, the low -pressure casting process was used for casting, and the two boxes of resin sand and the open pouring system were adopted. When designing the low -pressure casting process, this casting adopts the stabilization and solidification process casting skills. Their process characteristics are: the lift speed is slow and the window and the window is slow, the charging speed is slightly faster, the coagulation pressure is small, and the alloy liquid is insisted on it after filling the type. Crystal solidification under the charging pressure or slightly high charging pressure, until the casting is completely solidified and relieved.
Aluminum alloy welding gods.
1. Before welding aluminum alloys, we must first clean the name of aluminum alloy. There must be no oil, dust, etc. in the name of the welded at the welded at the welded at a pyruis. Wholesale manufacturers are used to need high corrosion, good weldability and medium -intensity occasions, such as ships, cars, aircraft, low -temperature equipment, TV tower, drilling devices, transportation equipment, missile parts and deck.
2. When welding aluminum alloys, first clean the name of aluminum alloy. There must be no oil fume, dust, etc. In addition, the thick plate aluminum alloy should be cleaned with a wire brush, and then the acetone is polymerized.
3. If the plate may be preheated after the board is compared, this may avoid insufficient preheating and cause incomplete welding. When collecting arcs, a small current should be filled with a small current. Structural materials, in aviation, aerospace, automobiles, mechanical manufacturing, ships and chemical industries, have been applied in large quantities. The wholesale round sticks belong to the category of long materials and belongs to the category of rods. The so -called stainless steel round steel refers to The shape of the shape is generally about four meters long.
4. Standard must be standard when welding, and the doors and windows are welded according to the thickness of the board.
