Air exhausting block and die assembly

A technology of exhaust block and exhaust channel, which is applied in the field of die-casting molds, can solve the problems of low exhaust volume and efficiency, and achieve the effect of increasing the area of ​​exhaust, increasing the efficiency of exhaust, and increasing the stroke

Active Publication Date: 2017-12-19
天津市发利汽车压铸件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an exhaust block and a mold assembl...

Method used

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  • Air exhausting block and die assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as Figure 1-Figure 3 As shown, the exhaust block provided by the present invention includes a first compact 100 and a second compact 200. Along the length direction of the first compact 100, the upper surface of the first compact 100 is provided with strips Protrusion 110, the second pressing block 200 is provided with a groove 210 corresponding to the strip-shaped protrusion 110, after the first pressing block 100 and the second pressing block 200 are fastened, the strip-shaped protrusion There is a gap between the protrusion 110 and the groove 210, and the gap forms an exhaust channel in the length direction of the exhaust block. Along the width direction of the strip-shaped protrusion 110, the upper surface of the strip-shaped protrusion 110 is provided with an arc-shaped portion 130, and the bending direction of the arc-shaped portion 130 is away from the upper surface of the first pressing block 100, compared to Compared with the washboard-type exhaust block...

Embodiment 2

[0055] Such as Figure 11-Figure 12 As shown, the difference from Embodiment 1 is that the heat transfer can be accelerated by increasing the layout area of ​​the cooling channel 300 . The cooling channel 300 may include a liquid inlet channel and a liquid outlet channel arranged along the length direction of the first compact 100, and a plurality of curved channels 310 corresponding to the arc portion 130, and the curved channels 310 sandwich between the liquid inlet channel and the liquid outlet channel, and communicate with the liquid inlet channel and the liquid outlet channel respectively. The liquid inlet channel includes a plurality of liquid outlets communicating with the curved channel 310, so that the cooling liquid entering the liquid inlet channel can quickly enter the curved channel 310, and each curved channel 310 corresponds to the strip-shaped protrusion 110 , so that the molten aluminum can be rapidly solidified.

Embodiment 3

[0057] Such as Figure 13 As shown, the difference from Embodiments 1 and 2 is that the cooling channel 300 includes a liquid inlet channel and a liquid outlet channel arranged along the length direction of the first compact 100 , and the corresponding arc portion 130 A plurality of curved channels 310, in order to increase the use efficiency of the cooling liquid, the plurality of curved channels 310 are connected in sequence to form an intermediate channel, the water inlet of the intermediate channel communicates with the liquid inlet channel, and the water outlet of the intermediate channel communicates with the outlet The liquid channel is connected, and the difference from the above structure is that this structure has no branch, only one channel, which increases the flow distance of the cooling liquid, so that it can fully absorb the heat of the aluminum liquid.

[0058] The mold assembly provided by the present invention includes the above-mentioned exhaust block, the e...

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Abstract

The invention provides an air exhausting block and a die assembly and relates to the technical field of die-casting dies. The air exhausting block comprises a first pressing block and a second pressing block. A strip-shaped protrusion is arranged on the upper surface of the first pressing block in the length direction of the first pressing block, and a groove corresponding to the strip-shaped protrusion is formed in the second pressing block; after the first pressing block is in snap-fit with the second pressing block, an interval exists between the strip-shaped protrusion and the groove, and the interval forms an air exhausting channel; an arc-shaped part is arranged on the upper surface of the strip-shaped protrusion in the width direction of the strip-shaped protrusion, and the bending direction of the arc-shaped part deviates from the upper surface of the first pressing block; the air exhausting area of a die cavity can be increased, and the air exhausting efficiency is improved; a plurality of flow turbulence grooves are formed in the strip-shaped protrusion at intervals in the length direction of the strip-shaped protrusion, and a plurality of flow turbulence protrusions corresponding to the flow turbulence grooves are arranged at the groove at intervals; and the flow turbulence grooves and the flow turbulence protrusions are used for enlarging the stroke of alloy liquid on the pressing blocks, and the phenomenon that aluminum is sprayed at the air exhausting block in the press spraying process is avoided.

Description

technical field [0001] The invention relates to the technical field of die-casting molds, in particular to an exhaust block and a mold assembly. Background technique [0002] Generally, during die-casting production, if the residual air in the mold or the gas generated by the release agent etc. is involved in the molten metal, defects such as pores in the casting will occur. When the exhaust structure of the mold is unreasonable and the casting is machined, porosity defects are prone to appear on the cutting surface, which affects the quality of the casting, and even poor sealing results in areas with sealing requirements. In order to reduce the scrapping of castings caused by porosity, the exhaust structure of the mold is very important. The exhaust channel of the exhaust block communicates with the cavity of the mold. During molding, the gas in the cavity is discharged to the outside of the mold through the exhaust channel of the exhaust block, and the molten metal such a...

Claims

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Application Information

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IPC IPC(8): B22D17/22
CPCB22D17/22B22D17/2236
Inventor 郭增未王树建王洪
Owner 天津市发利汽车压铸件有限公司
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