CN1562528A - Method of compression casting bimetal - Google Patents

Abstract

A pressure casting method for producing bimetal product features that on the basis of existing pressure casting apparatus, an ejection cylinder-boosting chamber set, another pouring head of mould and a mould depth limiter for controlling the sizes of two pressure castings are additionally used.

Description

Bimetal Press-casting Method

Technical field

The invention belongs to the metal casting technical field.

Background technology

The casting technique that carries out compound casting that has existed at present mainly is that equipment such as employing centrifugal casting, sand casting are simple, the casting technique of processing ease, does not also adopt the pressure casting process method to carry out compound casting both at home and abroad.

Summary of the invention

The purpose of this invention is to provide the method that a kind of brand-new employing pressure casting process is produced bimetallic product.

Technical scheme of the present invention is: Bimetal Press-casting Method, it is characterized in that: on existing die casting equipment, increase a shot sleeve and press the chamber, on die casting, increase a cast gate, on the dynamic model of described die casting, increase the size of mold depth localization device product when controlling twice die casting, produce alloy product by twice die casting, concrete steps are as follows:

1) gap of dynamic model die cavity and quiet model cavity is adjusted to the thickness of first kind of metal in the alloy product, it is indoor that first kind of metal joined first kind of metal crimp, starts first kind of metal of first kind of metal shot sleeve injection and go into mold cavity;

2) when first kind of metal forms the metal level of thin-walled in mold cavity after, the mold cavity degree of depth is adjusted to the size of final alloy product, it is indoor that second kind of metal joined second kind of metal crimp, starts second kind of metal of second kind of metal shot sleeve injection and go into mold cavity;

3) after the cooling, the alloy product of die casting is taken out in die sinking.

The invention has the beneficial effects as follows, utilize bimetallic die-casting process method of the present invention, two kinds of diverse alloys of performance can be combined with each other, obtain the alloy die cast product.This alloy die cast product combines the advantage of two kinds of alloys, applied range.

Description of drawings

Fig. 1 a is the state diagram of adopting after the die casting equipment injection for the first time of the method for the invention.

Fig. 1 b is the state diagram of adopting after the die casting equipment injection for the second time of the method for the invention.

Among the figure, 1. second kind of metal shot sleeve, 2. first kind of metal shot sleeve, 3. quiet mould, 4. dynamic model, 5. depth of cavity positional cylinder, 6. second kind of metal crimp chamber, 7. first kind of metal crimp chamber, 8. quiet model cavity, 9. dynamic model die cavity, the size of the final alloy product of H-, first kind of metal thickness of h-.

The specific embodiment

Below in conjunction with accompanying drawing invention is further specified.

Shown in Fig. 1 a and Fig. 1 b, on existing die casting equipment, increase a shot sleeve and press the chamber, on the quiet mould 3 of die casting, increase a cast gate, on the dynamic model 4 of described die casting, increase the size of mold depth localization device product when controlling twice die casting, produce alloy product by twice die casting, concrete steps are as follows:

1) adjusts die cavity depth localization cylinder 5, the dynamic model die cavity 9 and the gap of quiet model cavity 8 are adjusted to the thickness h of first kind of metal in the alloy product, first kind of metal joined in first kind of metal crimp chamber 7, start first kind of metal of first kind of metal shot sleeve 2 injection and go into mold cavity;

2) when first kind of metal forms the metal level of thin-walled in mold cavity after, adjust die cavity depth localization cylinder 5, make the size H that the dynamic model die cavity 9 and the gap of quiet model cavity 8 is adjusted to final alloy product, second kind of metal joined in second kind of metal crimp chamber 6, start second kind of metal of second kind of metal shot sleeve 1 injection and go into mold cavity;

3) after the cooling, the alloy product of die casting is taken out in die sinking.

Claims (1)

1. Bimetal Press-casting Method, it is characterized in that: on existing die casting equipment, increase a shot sleeve and press the chamber, on die casting, increase a cast gate, on the dynamic model of described die casting, increase the size of mold depth localization device product when controlling twice die casting, produce alloy product by twice die casting, concrete steps are as follows:

1) gap of dynamic model die cavity and quiet model cavity is adjusted to the thickness of first kind of metal in the alloy product, it is indoor that first kind of metal joined first kind of metal crimp, starts first kind of metal of first kind of metal shot sleeve injection and go into mold cavity;

2) when first kind of metal forms the metal level of thin-walled in mold cavity after, the mold cavity degree of depth is adjusted to the size of final alloy product, it is indoor that second kind of metal joined second kind of metal crimp, starts second kind of metal of second kind of metal shot sleeve injection and go into mold cavity;

3) after the cooling, the alloy product of die casting is taken out in die sinking.

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