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Die-casting machine and forming method of metal in solid-liquid coexistence state

A die-casting machine and metal technology, which is applied in the field of die-casting machines and solid-liquid coexistence metal forming, and can solve the problem of giving pressure to difficult solid-liquid coexistence metals.

Active Publication Date: 2020-08-04
TOSHIBA MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, in the configuration in which pressure is applied to the solid-liquid coexisting state metal by the plunger as in Patent Document 1, it is difficult to apply sufficient pressure to the solid-liquid coexisting state metal.
In addition, in the configuration in which the metal in the solid-liquid coexistence state is conveyed between the molds in which the mold is opened and the metal in the solid-liquid coexistence state is applied by clamping the molds as in Patent Document 2, the direction of mold opening is limited to the vertical direction, and the solid-liquid coexistence state must be configured. Dedicated equipment for metal forming in liquid coexistence state

Method used

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  • Die-casting machine and forming method of metal in solid-liquid coexistence state
  • Die-casting machine and forming method of metal in solid-liquid coexistence state
  • Die-casting machine and forming method of metal in solid-liquid coexistence state

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Experimental program
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no. 1 approach ＞

[0044] (The overall structure of the die casting machine)

[0045] figure 1 It is a partially cutaway side view showing the configuration of a main part of the die casting machine 1 according to the first embodiment of the present invention.

[0046] The die-casting machine 1 injects liquid metal (melt) or metal in a solid-liquid coexistence state into the mold 101 (cavity Ca and other spaces, the same below), solidifies the metal in the mold 101 , and manufactures a die-cast product (formed product). It should be noted that the die casting machine 1 can be used for forming either liquid metal or metal in a solid-liquid coexistence state, but in the following description, the configuration for forming semi-solidified metal as an example of a metal in a solid-liquid coexistence state will be mainly described. and steps. The metal is, for example, aluminum or an aluminum alloy.

[0047] The die 101 includes, for example, a fixed die 103 and a movable die 105 . In the descrip...

no. 2 approach ＞

[0236] Figure 11 are the symbols showing the configuration of the main parts of the die casting machine 201 of the second embodiment and figure 1 corresponding figure.

[0237] In the first embodiment, the injection driving unit 43 of the injection device 9 is a hydraulic type. On the other hand, in the second embodiment, the injection driving unit 243 of the injection device 209 is an electric type. Other than that, the second embodiment is the same as the first embodiment.

[0238] The electric injection driving unit 243 can have various configurations. In the illustrated example, the injection drive unit 243 has a rotary motor 244 and a transmission mechanism 245 that converts the rotation of the motor 244 into a translational motion and transmits it to the plunger 41 .

[0239] The transmission mechanism 245 is comprised by the screw mechanism, for example, and has the screw shaft 245a, and the nut 245b screwed together with the screw shaft 245a. The screw shaft 245 ...

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Abstract

Provide a die-casting machine capable of applying appropriate pressure to metals in a solid-liquid coexistence state. The die-casting machine (1) has: a mold clamping device (7) that opens, closes and clamps a pair of molds (101); an injection device (9) that causes a plunger (41) to open and close the pair of molds (101). 101) to advance into a pair of molds (101); a control device (47) controls the mold clamping device (7) and the injection device (9). The control device (47) includes an injection control unit (93) and a pressurizing mold clamping control unit (95). The injection control unit (93) controls the injection device (9) so that injection starts when the pair of molds (101) face each other across a gap. The pressurizing mold clamping control unit (95) controls the mold clamping device (7) so that the mold comes into contact and the mold is clamped after the start of injection. Furthermore, the injection control unit (93) performs control to decelerate the plunger (41) before the plunger stops.

Description

technical field [0001] The invention relates to a die-casting machine and a forming method of a solid-liquid coexisting state metal. It should be noted that the solid-liquid coexisting state metal may be either semi-solidified metal in which liquid metal is cooled to a solid-liquid coexisting state, or semi-molten metal in which solid metal is heated to become a solid-liquid coexisting state. Background technique [0002] A technique for shaping a metal in a solid-liquid coexistence state is known. For example, in Patent Document 1, in a die-casting machine having the same structure as a normal die-casting machine that molds liquid metal (melt), semi-solidified metal is supplied to a sleeve that passes between molds after mold clamping, and the plunger passes Forming is performed by injecting the semi-solidified metal inside the sleeve between the molds. In addition, in Patent Document 2, semi-molten metal is conveyed between open molds (injection is not performed), and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D17/04
CPCB22D17/007B22D17/04B22D17/002B22D17/10B22D17/203B22D17/26B22D17/32
Inventor 中田光荣相田悟豊岛俊昭
Owner TOSHIBA MASCH CO LTD