The characteristics of the packaging steel with low melting point alloy die

Packing steel with low melting point alloy die the characteristics of low melting point alloy die, is made formula with low melting point metal elements, fabrication techniques with casting mold cavity, forming punch; Or with a low melting point alloy as orientation, support and connection matrix, to set spell steel blade for cutting edge, to make the shape of complicated large trimming, punching mould, etc. In sheet metal forming, the main is Jane form, box, circle forming of conical and hemispherical parts. For shallow drawing parts, because of the concave die hole stress is small, the group of the little case, don't need to be embedded in the low melting point alloy die steel concave template. Or hemispherical parts, deep drawing parts, its low melting point alloy mould are required with blank-holder circle, and is best used on double-action press simplify the structure of the mould. Low melting point alloy die compared with steel, the mould manufacturing cycle is short and the advantages of low cost. Because of the low melting point alloy die casting for zinc a large amount of machining and benching, casting a pair of low fusing point alloy scholastic furniture only 2 - usually 6 hours, so, the mould manufacturing cycle than die shorten 60 - generally 90%. Shape more complex or the size is larger, and its superiority is more universal. In addition, low melting point alloy mould only a small amount of ordinary steel, do not need special steel ( Trimming die, punching die steel blade part only need a small amount of tool steel) , can save about 80% steel and the low melting point alloy can be recycled, recasting the new mould. Therefore, the cost of molding can reduce 60 about than steel & ndash; 90%. In addition, the low melting point alloy mould in use also has the following advantages: (1) due to the low melting point alloy cold expanding resistance, can be applied to the feeding casting process, so the high precision mold size; (2) on the press mold, do not need to adjust the mould and replacement interval; (3) mold the operation is simple; (4) low melting point alloy is soft, is suitable for forming condition. Low melting point alloy mold to suppress 08, 08 f, A3, B3, copper, aluminum, stainless steel, du pull materials such as aluminum, its thickness of 0. 3 - 3 mm (thickness of steel plate processing biggest hit 6 mm) 。 When the thickness is 1. 5 mm steel plate, its & ndash; Mold life can reach 3000 pieces. The low melting point alloy application profiles are shown in table 6 - forming die 1.