Aluminium alloy presses cast bedrock to depict

Die-casting technology shapes principle and characteristic

Die-casting, namely pressure forgings, be liquid state metal or metal of half liquid state, below high-pressured effect, go to those who press mould with expensive speed stuff model in antrum, condense quickly below pressure and win a kind of way of cast.

Commonly used pressure is when die-casting come from a few handkerchief a few handkerchief, fill begins speed to be in 0.5-70m/s; The frit material temperature when die-casting, aluminium alloy is 610-670 ℃ commonly, zincic alloy is 400-450 ℃ commonly, 1/3 what mould temperature is alloy temperature commonly.

Press the program of cast to request

(1) presses the appearance construction that cast plans to request
Press cast reasonably to construct to be able to simplify not only the construction of die-casting mould, reduce the capital that make, also can improve the quality that presses cast together.

Answer to request as follows alertly: A, prevent in-house side sunken or blind aperture is tectonic; B, prevent or cut down perpendicular construct at the aperture of cent face or exterior blind aperture.

(2) presses the mural thick request that cast plans
Press cast wall ply (say the wall is large commonly) it is the crucial factor in die-casting technology, the business accounting of hour of stuff of the stuff that be like frit, condense the analysis of gradient of temperature of the business accounting of hour, mould, pressure (compare after all pressure) the accident of the effect, hour keeping a standard, die-casting those who carry a temperature on the head is concave and convex reach operation power to wait a moment, as thick as the wall having direct connection.

Answer to request as follows alertly: A, die-casting the wall is large slant the mechanical function that thick meeting makes press cast is being shown reduce, cast of Bao Bi pressing is close the gender is good,
To raising cast intensity and compression sex; B, die-casting the wall is large cannot too thin, too small conference creates stuff of fluid of aluminium alloy frit undesirable, shape hard, make aluminium closes
Frit of golden frit fluid is received had owed, bring hardship to die-casting technology; C, press cast to be added thickly along with the wall, the defect such as its interior stoma, shrinkage cavity also is added subsequently; D, should hold to a wall as far as possible thick sectional thickness is even and collective.

Accumulate large and small to distinguish according to pressing the face of cast, the reasonable wall that zincic aluminium alloy presses cast is large following watches are shown:

The reasonable wall that zincic aluminium alloy presses cast is large

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