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All metal casting mould for pile end board

An all-metal, end-plate technology, applied in the direction of metal processing equipment, casting molds, casting mold components, etc., can solve the problems of high cost, low efficiency, low yield, etc., and achieve high reuse rate, low production cost and easy operation Environmentally friendly effect

Inactive Publication Date: 2002-07-17
翁国能
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the traditional casting method is used for production, the punch core is always used as the core, but there are the following disadvantages when the punch core is used as the core for casting: (1) Due to the phenomenon of sand inclusions in the products that often drop the mold and pour sand, the internal quality and surface finish are not ideal; (2) cutting more material, yield rate is low, generally only about 80%; (3) punch core is disposable, because it can not be reused, it also leads to high cost and low efficiency; (4) ) Due to the use of the punch core, it will also bring environmental protection problems; (5) Because the traditional punch casting process requires gas cutting to remove the cutting material from the demoulded product, and the amount of cutting material is large, when implementing gas cutting The metal hardness of the product itself becomes harder, which makes it more difficult for casting products to be cut and finished.

Method used

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  • All metal casting mould for pile end board
  • All metal casting mould for pile end board
  • All metal casting mould for pile end board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0014] Example 2 as image 3 Shown on its lower mold (2) is not provided with sprue mouth, and its sprue mouth (8) is the through hole that is located on the annular plate of described upper mold (1), and lower mold (2) is a cylindrical platform, and its top The surface is provided with a concave circular platform (4) as a cavity, and the sprue opening (8) communicates with the cavity (4), and the sprue opening (8) is a tapered hole with a wide bottom and a narrow top. Described die cavity (4) is covered with patrix (1) annular flat plate above, and the center of described annular flat plate has a taper hole (15) that opens upwards with a tapered shape, the taper of described taper hole (15) and metal The tapers of the frustum at the bottom of the core (3) are consistent. A plurality of ventilation holes (14) are arranged on the annular flat plate of the upper mold (1), or a plurality of ventilation holes (12) are provided on the surrounding wall of the lower mold cavity (4)....

Embodiment 3

[0015] Example 3 as Figure 4 As shown, the sprue opening (6) is arranged in the center of the metal core (3) along the vertical direction, and one or more runners (7) are opened at the bottom of the metal core. Both the sprue (6) and the runner (7) have a shape with a narrow top and a wide bottom, and a shrinkage hole (11) is opened in the center of the lower mold (2). When the molten metal needs to be poured, Cover the cover (10) on the bottom surface of the die cavity (4) (lower type concave round platform) on the top surface of the lower mold (2), and cover the shrinkage hole (11).

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PUM

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Abstract

The casting mould contains upper mould, lower mould and metal core, the described core is a circular truncated cone with central through hole and aeration straight groove cut on the side wall, the upper mould is a ring plate, it ring hole possesses the taper identifical to that of metal core, the described lower mould is a cylindrical projection whose top portion is equipped with mould cavity, and the outside of cylindrical surface can be equipped with outewards projected gating platform, and its aeration hole can be set on upper edge of lower mould cavity wall or ring plate of upper mould. Its product quality is high and its production efficiency also is high.

Description

technical field [0001] The invention relates to a mold-casting process and a mold for pile end plates used in construction. Background technique [0002] The cement prefabricated pipe pile for construction needs to use a kind of end plate, which is a flat circular iron (steel) casting (commonly known as "flange"). When the traditional casting method is used for production, the punch core is always used as the core, but there are the following disadvantages when the punch core is used as the core for casting: (1) Due to the phenomenon of sand inclusions in the products that often drop the mold and pour sand, the internal quality and surface finish are not ideal; (2) cutting more material, yield rate is low, generally only about 80%; (3) punch core is disposable, because it can not be reused, it also leads to high cost and low efficiency; (4) ) Due to the use of the punch core, it will also bring environmental protection problems; (5) Because the traditional punch casting pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/06
Inventor 翁国能
Owner 翁国能